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Journal articles on the topic 'Formwork'
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1
Song, Xiao Ruan, Pei Ge Liu, Xiao Yun Zhang, Yu Ting Qu, and Ji Min Xu. "Experimental Study on Concrete Slab Combined with Permanent Cement Formwork with Joints." Advanced Materials Research 243-249 (May 2011): 1283–87. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.1283.
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In this research, a kind of composite cement plates are utilized as permanent formworks, and poured concrete together to form composite slabs. Through static test of composite slabs with different bonding modes of interface between formwork and concrete, bearing capacity, deformability and cooperation states of concrete and composite formwork are studied. Through static test of composite slabs with splicing joints formworks at different positions, bond quality near the splicing joints are observed visually, stress nature and deformability variations resulted from different splicing joint positions of formwork are analyzed. And meanwhile, stress and deformability of the ordinary concrete slab without formwork is researched under the same conditions. Through above experiments, acting as a part of the slab, how composite formwork influence bearing capacity and deformability of the combined slab is investigated.
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Ali Tighnavard Balasbaneh and Irina Batrisyia Zamri. "Life Cycle Cost and Evaluation of Performance between Steel Formwork and Plastic Formwork in Concrete Structure Building." Journal of Advanced Research in Applied Sciences and Engineering Technology 34, no. 2 (December 2, 2023): 153–68. http://dx.doi.org/10.37934/araset.34.2.153168.
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It is important to choose the most suitable type of formwork system material for construction projects due to the fact that formwork plays a crucial part in the construction of reinforced concrete structures. However, some parties still did not take note of important factors to consider in choosing the right type of material for formwork. This research study aims to ease the process of selecting the suitable type of formwork by surveying 5 respondents in the related field of matter located in Malaysia on the two types of formworks and by evaluating their Life Cycle Cost (LCC). Based on the respondent’s opinions and answers, the preferred formwork was more heavily on steel formwork. It shows that steel formwork is superior in the duration required for setting up, quality of concrete and its surface finishing, cost, strength, durability, handling, and times of reusability. Meanwhile, plastic formwork shows that it is superior in the category of its resistance to leakage and less waste (concrete) production. It was concluded that 7 out of 11 questions were led by steel formwork and 3 out of 11 by plastic formwork, and only 1 question gained the same amount of response from the 5 respondents. By doing the LCC, we obtained that plastic formwork costs RM12,639.60, and steel formwork is RM24,715.50. It shows that plastic formwork is 49% cheaper than steel formwork. Hence it can give more benefits and is more economical for the long-term duration of the company. These findings will provide ease and a better understanding of formworks that can be used based on the information gained from the research to ensure sustainability towards the environment and economy.
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Dr. M Kranti Kumar and Jaya Surya R. "Evaluation of Different Kinds of Formwork Systems in Indian Construction Industry." International Journal of Engineering and Management Research 12, no. 1 (February 28, 2022): 101–7. http://dx.doi.org/10.31033/ijemr.12.1.12.
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In the construction industry, formwork plays a critical role in the construction of cast in situ reinforced concrete structures. Due to the rapid growth of the Indian economy, population growth, urbanization, and industrialization, the demand for housing and other built structures is increasing. To meet these requirements, quick construction is needed with less project completion time. The conventional system of formwork comprises nearly 50% of the total project completion time. Wastage and labour requirement is also high in conventional formwork systems. So, the use of modern formwork systems like aluminium formwork, tunnel formwork, etc., is increasing in the Indian construction industry. This paper aims to discuss and evaluate the various formwork systems available, and to show their impact on project duration, cost, quality, cycle-time, number of repetitions, labour requirements. Through literature review, data about various formwork systems available all over the world are collected. The current practices in India are known from various stakeholders through a questionnaire survey. Data analysis will be done using the data collected from the literature review and the questionnaire survey. The research will highlight the benefits and comparison of various types of formworks in terms of project duration, cost, quality, cycle-time, number of repetitions, labour requirements. This study concluded that implementing the modern formwork systems will improve the quality, safety, efficiency and minimise the cost and waste in construction. Keywords: Conventional formwork; Modern formwork systems; fast-track construction; Comparison; Indian construction sector.
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ARDITAMA, NANDA, Sumardi Sumardi, and Nawir Rasidi. "PERENCANAAN BEKISTING DAN PERANCAH PADA GEDUNG BERTINGKAT DENGAN SISTEM ZONASI (STUDI KASUS : PROYEK APARTEMEN DARMO HILL SURABAYA)." Jurnal JOS-MRK 2, no. 3 (September 20, 2021): 90–98. http://dx.doi.org/10.55404/jos-mrk.2021.02.03.90-98.
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In the implementation method most contractors use conventional formwork which takes longer time. Therefore, it is necessary to use an innovation with semi-conventional system formwork method which is a combination of multiplex and hollow material. The purpose of this study is to analyze the strength of the half-system formwork, its implementation, and the operational costs of the project of 1 to 9 floors with a total area of 5,708.255m2. The data used include shop drawings and work unit prices of Surabaya City 2018. Microsoft Excel 2016 was for the calculations and Microsoft Project 2016 was for the scheduling. The calculations resulted semi-conventional formwork using wood and hollow steel of beam and slab formworks on 161 work days Rp. 2.790.745.668,86.
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Li, Jian Ping, Pin Tan, Jin Huang, and Xiang Jun Wang. "Simulation and Experimental Study of Floating with Engineering Mechanics on Box Girder Steel Interior Formwork Used in the High Speed Railway." Applied Mechanics and Materials 540 (April 2014): 185–88. http://dx.doi.org/10.4028/www.scientific.net/amm.540.185.
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During the construction of high speed railway box girder, the interior formwork’s floating problem is always been a big common quality fault plagued the construction in the process of concrete pouring, this leads to the roof thickness of box girder arising, the harm is great. This paper combined the construction project of Hebang single linear 32 meter interior formwork, according to the actual condition of the construction, proceeding the simulation analysis and experimental study of floating date on box girder interior formwork. Using the solidworks2010 establish the mode of box girder interior formwork, then, import the mode to the workbench14.5 proceeding simulation analysis. The simulation analysis of interior formwork maximal floating date is 10.67 millimeter, while the measured date is 10.63 millimeter, the deviation is 3.2%. The result manifests the feasibility of the simulation analysis of interior formwork floating date, this provide a reference to the structure optimization of the interior formwork used in the high speed railway.
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Efendi, Mohammad Arif Bahtiar, and Rendi Gusta Wibowo. "Pertimbangan Biaya dalam Pemilihan Bekisting." JURNAL PILAR TEKNOLOGI Jurnal Ilmiah Ilmu Ilmu Teknik 6, no. 2 (January 6, 2022): 69–75. http://dx.doi.org/10.33319/piltek.v6i2.101.
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Materials in the construction world is progressing quite rapidly. Likewise formwork as a project is also experiencing quite rapid progress which refers to the value of the results of a project. In a project the determination of the type of system and formwork method will affect the cost and time in progress, the selection of the formwork method which is not appropriate will have a loss in the future. The analysis conducted is comparing formwork of semi-conventional methods and system (PERI) in column, beam and plate formworks of the INKA Graha Building Construction Project, Madiun. The objective to be achieved in this paper is to find out the type of formwork that is efficient to be used in a formwork work both for beam and plate columns, in terms of cost comparisons and finding a draw point between the two methods. After analyzing it is known that the use of semi-conventional initiating systems is more efficient with a value of Rp. 2,349,756,391, - and for the PERI system costs Rp. 3,050,649,782, - .. The draw point of this system is in the volume of 31,500 m2 which means that in this volume the use of semi-conventional systems and PERI systems does not differ in terms of cost.
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Song, Xiao Ruan, Xiao Yun Zhang, Wei Dai, Yu Ting Qu, and Zi Liang Xu. "Study on Stress and Deformation Performances of the Spliced Cement Formwork Reinforced by FRP." Applied Mechanics and Materials 71-78 (July 2011): 764–68. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.764.
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For permanent cement-base formwork, due to stay-in-place with concrete during all the service life and minor size of the end surface, the splicing methods of traditional formworks are not adapted to be used. In allusion to natures of the cement-base formwork, this paper presents ten types of splicing methods. For each method, a group of specimens are prepared and whose capacity and deformation performance are investigated. And meanwhile, stress and deformability of the full specimens without joint are researched under the same conditions. Through above splicing experiments, some reliable splicing method is obtained. The experimental results provided by this paper present a gist for investigation and application of the permanent cement-base formwork.
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Jipa, Andrei, Mathias Bernhard, Nicolas Ruffray, Timothy Wangler, Robert Flatt, and Benjamin Dillenburger. "Formwork fabrication freedom for a concrete canoe." Gestão & Tecnologia de Projetos 14, no. 1 (September 6, 2019): 25–44. http://dx.doi.org/10.11606/gtp.v14i1.148264.
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The pursuit for complex geometries in contemporary architecture is driving innovation towards an unconstrained fabrication freedom for building components. Concrete is a building material with excellent structural and architectural qualities, which has the theoretical capacity of being cast into any shape. However, in practice, concrete is generally limited by the formwork manufacturing industry to simple, planar shapes. To overcome this fabrication limitation, this research investigates the use of large-scale 3D-printed plastic formworks for concrete components. This novel construction method takes advantage of the load-bearing capacity of concrete and relies on the fabrication-freedom inherited from the 3D printed formwork, thus making complex topologies and precise details possible for concrete structures. To demonstrate the potential applications of this method, skelETHon —a functional four-meter-long concrete canoe— was designed, built and raced in a regatta on the Rhine river. The research focused on the optimization of the 3D printing process for large-scale plastic formworks and on improving the stability of the thin formwork shells during casting.
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Song, Xiao Ruan, Wei Niu, Wen Chao Shan, Xiao Zhu, and Yong Meng Wang. "Research on Static Performance of Composite Shear Wall with Insulation Layer." Applied Mechanics and Materials 470 (December 2013): 1039–44. http://dx.doi.org/10.4028/www.scientific.net/amm.470.1039.
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A new type of composite shear wall with insulation function is proposed, the inner layer of which is made of cement-base composite formworks produced by our research group in advance, and the outer layer of which is made of insulation formwork superposed with the cement formwork and insulation material. The space between the inner and the outer formwork is filled with concrete. Through the test of static loading in vertical and horizontal ways, bearing capacity, deformation properties, and failure modes of the composite shear wall, and cooperative work performance of the insulated formwork and concrete are studied. The static working performance of the composite shear wall with insulation is compared with that of the composite shear wall without insulation and the traditional shear wall, and some suggestions are put forward. The research results have proved that the sandwich-type composite shear wall with insulation is well-performed, which plays an important role in the future study and application.
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Brózda, Kinga, and Jacek Selejdak. "Safety of Formworks in the Engineering and General Construction Sector." System Safety: Human - Technical Facility - Environment 1, no. 1 (March 1, 2019): 284–90. http://dx.doi.org/10.2478/czoto-2019-0037.
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AbstractFormwork systems are necessarily used in the implementation of the RC (reinforced concrete) structures. Formworks are required regardless of whether a construction is monolithic or prefabricated and used to form the engineering and general structures or structural elements, such as abutments, supports and decks of the bridges, tanks and retaining walls, but also industrial and accommodation facilities etc. Ensuring the OHS (occupational health and safety) during transport, assembly and disassembly of formworks is a necessary condition for the execution of RC works in a safe and economical way. The paper presents the analysis of the safety requirements for formworks. Furthermore, the general requirements for the execution of the formwork structures were discussed. The most common organizational and technological mistakes and cased of neglects related to the operation of the formwork which lead to infringement of the OHS regulations were also identified.
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Li, Shengqiang, Jin Wang, Zhiwei Yu, Yadong Li, and Hongyan Guo. "Study on the Bearing Capacity of Steel Formwork Concrete Columns." Buildings 13, no. 3 (March 21, 2023): 820. http://dx.doi.org/10.3390/buildings13030820.
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Steel formworks are widely used in prefabricated buildings thanks to their good characteristics. With the rapid development of engineering construction in China, steel formwork concrete structures, characterized by convenient construction, good seismic performance, and high strength, are expected to be more extensively applied in engineering practice. However, the bearing capacity of different forms of steel formwork concrete is still unclear. Two prefabricated columns with different internal diaphragm styles were set up for axial compression tests to investigate the performance of steel formwork columns. This study conducts monotonic static loading tests on six prefabricated steel tube column specimens and performs finite element analysis by taking steel tube thickness, rebar diameter, and internal diaphragm style as the influencing parameters. The results show that the prefabricated specimens can work in the test process, and the ultimate bearing capacity is consistent between the tests and numerical simulation. Moreover, the nephograms obtained from numerical simulation also conformed to the failure mode of the specimens in the test process. Therefore, the finite element model proposed in this study can accurately predict the stress performance of steel formwork concrete stub columns. These results offer guidance for future engineering practices.
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Diaconu, Raluca, and Paul Dan Brindasu. "Personalised Formwork – scientific approach for new solution variants." MATEC Web of Conferences 290 (2019): 04005. http://dx.doi.org/10.1051/matecconf/201929004005.
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Application of personalised formwork is of most interest for architects and engineers now-a-days. Although a required demand when designing special constructions, there is little data and material solutions for this case. The cost and domain of application are of most importance in determining new solutions for concrete formworks. To contribute to these requests (a wider usage domain, productive material cost and maintenance), a personalised formwork concept is presented. The idea of reusing the formwork led to an elastic material – membrane (thermoset elastomers, synthetic rubber) with a punching tie-rod solution in order to obtain any architectural shape desired. This first solution was evaluated taking into account different membrane thicknesses. Several experimental tests denoted that the named chosen membrane variants are of low resistance for pouring a concrete architectural slab, so new solutions were discussed. Hence, a re-analysis of the PLM steps was achieved in order to find an answer for the encountered problem. By using creative methods, we obtained a second solution and put it to test. The attained results are used in order to establish the area of workability, to enlarge the tested domain and to assess the sustainability of a new type of personalised formwork
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Putra, A. B., D. O. I. Putra, G. A. Sentosa, and R. A. Saputra. "Cost Analysis and Method Comparison on High-Rise Building Column Formworks by Three Formwork Methods." IOP Conference Series: Earth and Environmental Science 1324, no. 1 (April 1, 2024): 012007. http://dx.doi.org/10.1088/1755-1315/1324/1/012007.
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Abstract The purpose of this study was to determine how much cost would be incurred and to analyse the difference in price by using three formworks’ methods, they are: the conventional method (According to Ministry Guide Num 1 Year 2022 and PT. Hutama Karya), the System Method with Multiplex and with phenolic film materials (According to Ministry Guide Num 1 Year 2022 and PT. Hutama Karya). This paper also included the analysis of using aluminium formwork method, but it was not the focus of this research. This analysis will also express the advantages and disadvantages of each of these methods. Data used for this research was obtained from shop drawing and calculations provided by PT. Hutama Karya (shortened as PT HK), with the prices for materials and wages for the West Java Region gathered from the Unit Price Journal. For cost estimation (calculation), the Ministry Guide Number 1 Year 2022 was used as guidance. The results of this analysis showed that the formwork with “system” Method using Phenolic film is the most economical formwork method in this study, this is because the type of formwork can be used not only multiple times, but also in buildings with varied column types.
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Bemanian, Mohammadreza, Mohammadjavad Mahdavinejad, Ali Karam, and Sima Rezaei Ashtiani. "Architectural Application of Smart Materials for Non-Flexible Structures Made by Flexible Formworks." Applied Mechanics and Materials 232 (November 2012): 132–36. http://dx.doi.org/10.4028/www.scientific.net/amm.232.132.
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Flexible formworks are dominantly used for concrete constructions. These constructions become rigid after curing and their form cannot be changed, also their color or translucency is stable during usage period; i.e. these constructions are not flexible. On the other hand, in order to satisfy new architectural requirements the necessity of flexibility and smartness is undeniable for the construction.The questions of this paper are: How smartness can be added to rigid structures? What are the roles of nano-flexible formworks to turn non-flexible structures into flexible ones? To answer the research questions, descriptive - analytical research method has been adopted and empirical data gathered to feed inference mechanism. Our investigation shows that if the flexible formwork has been made by smart materials which are changeable in nano-scale, and the formwork is left on the structure even after curing, it would act as a nano-flexible skin for the structure and would satisfy some architectural requirements in nano-scale.
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Park, Se-Eon, Jeong-Il Choi, Sungho Lee, Eung-Sam Kim, Bong-Kee Lee, and Bang Yeon Lee. "Surface Properties of Concrete and Bonding Strength of Pine Resin-Based Adhesives to Concrete Surfaces." Advances in Civil Engineering 2023 (February 8, 2023): 1–10. http://dx.doi.org/10.1155/2023/8829409.
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This article reports a quantitative investigation of the surface characteristics of normal concrete manufactured with different types of formworks and bonding strength between pine resin-based adhesives and concrete surfaces. Three types of formworks and adhesives with different ratios of pine resin to wax were prepared. Scanning electron microscopy, energy-dispersiveX-ray spectroscopy, white-light scanning interferometry, and electrophoretic light scattering were utilized for the surface characterization of concrete, and a bonding test was performed. Test results showed that the surface roughness of concrete was significantly influenced by the type of formwork; all techniques including visual observation provided similar results. On the contrary, chemical compositions and electrical characteristics were not influenced by the type of formwork. Bonding test results showed that bonding strength increased as the ratio of wax increased and the degree of the concrete surface roughness increased. The results of this study indicate the feasibility of pine resin-based adhesives for concrete structures as green construction materials.
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Shi, Kairong, Jiebin Xu, Zhengrong Jiang, Junfeng Lv, and Yonghui Lu. "Mechanical Properties of New Composite Wood-Plastic Formworks with Aluminum Alloy Frame." Advances in Civil Engineering 2020 (December 5, 2020): 1–19. http://dx.doi.org/10.1155/2020/8831999.
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Formwork engineering plays a crucial role in cost, efficiency, quality, and schedule in civil engineering. Currently, wood-plastic formwork, which has favorable mechanical properties such as wood and excellent stability, formability, ease of demolding, and time-saving as plastic, is earning its increasing reputation in construction. This work focuses on mechanical properties of two types of new composite wood-plastic formworks with aluminum alloy frame used for construction, that is, single-span simply supported and three-span continuous formworks. Experimental investigation shows that the two types of wood-plastic formworks demonstrate favorable performance, and the deflections and stresses are within the allowable range, thereby satisfying the structural bearing requirements. Numerical analyses confirm that the results of the refined and general finite element models are consistent with the experimental results, but the former has a higher accuracy. When the requirement of accuracy is not too strict, the general model is preferred, given the modeling convenience and high efficiency. On the basis of experimental and numerical investigations, practical simplified formulas are proposed to facilitate rapid calculation and evaluation considering transverse deflection and inconsistency of two materials. Therefore, the results in this work can provide a theoretical basis for developing and applying the new formworks.
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Wibowo, M. Agung, Jati Utomo D, and Shafril Yinurullah. "Perbandingan Penggunaan Variasi Tipe Bekisting Ditinjau dari Sisi Biaya, Mutu, Waktu dan Waste pada Pelaksanaan Konstruksi Gedung Bertingkat di Indonesia." Syntax Literate ; Jurnal Ilmiah Indonesia 8, no. 11 (November 17, 2023): 6596–609. http://dx.doi.org/10.36418/syntax-literate.v8i11.13920.
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This study aims to find the ratio of costs, time, waste for various types of formwork in the world of construction, especially building construction. The formwork used is conventional, semi-system, system, PERI and aluminum. The ratio of the cost and time of formwork work to building area is smallest in the use of aluminum formwork, PERI formwork and system formwork. The ratio of the cost and time of formwork work to building area is highest in the use of semi-system and conventional formwork. The ratio of wood and plywood waste to building area is smallest in use of aluminum formwork and system formwork and the highest ratio of wood and plywood waste to building area is found in the use of conventional formwork. The smallest ratio of wood waste to total formwork costs is the use of aluminum formwork, PERI formwork and system formwork and the largest ratio of wood waste costs to total formwork costs is the use of conventional formwork. The smallest ratio of plywood waste to total formwork costs is the use of formwork and the largest ratio of plywood waste to total formwork costs is the use of conventional formwork.
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Ospitia, Nicolas, Rami Jaramani, Olivier Remy, and Dimitrios G. Aggelis. "Determination of Concrete Formwork Removal Time Based on Ultrasound Reflection." Applied Sciences 12, no. 3 (January 24, 2022): 1221. http://dx.doi.org/10.3390/app12031221.
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Concrete is vastly used in construction due to its high compressive strength, and its ease of shaping. Formworks are used to render the desired shape to the material during its change from a liquid to a solid state, until the concrete develops the required strength. Removing the formwork early can cause excessive deformations or even failure; however, postponing removal also has a delaying effect in construction with economic consequences. In practice, the removal of the formworks is based on the development of the compressive strength vs. the self-weight and temporary loads related to the construction. This study aims to monitor the hardening of concrete columns by means of the reflection of ultrasonic waves. As concrete hardens, its mechanical impedance increases influencing the reflection that can be received by one-sided non-invasive measurements. By suitably selecting the stiffness of the ultrasonic buffer material, the moment that the concrete obtains a specific stiffness can be safely determined for the first time. Results demonstrate sensitivity of the technique on real scale formworks, as it can pinpoint the moment in which the formwork can be removed, while numerical simulations help in the understanding of the complicated wave field and validate the methodology.
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Taher Ahmed, Mohammed, Rozana Zakaria, Rosli Mohamad Zin, and Rania Hussien Ahmed. "Environmental Performance for Two Formwork System Types: Conventional Formwork & Steel Formwork System." Applied Mechanics and Materials 525 (February 2014): 509–11. http://dx.doi.org/10.4028/www.scientific.net/amm.525.509.
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Environmental aspect is one of the important criteria that define and determine sustainability performance for concrete formwork system. This study is aimed to compare the performance of the most common types of formwork system Conventional Formwork & Steel Formwork System in responding to environment category of sustainability development using questionnaire survey distributed among construction experts. The steel formwork system gets 11.5 score points while conventional formwork collects 7.8 points of total 19.4 score can be achieved. Overall steel formwork performance surpasses the conventional formwork while their score for formwork reusable element was adjacent with only 0.5 score difference meantime steel formwork had override conventional formwork in impact on local environment element. Generally steel formwork system may conceder as more environment friendly than conventional formwork especially in waste generation and using renewable material.
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Gelbrich, Sandra, Henrik L. Funke, Andreas Ehrlich, and Lothar Kroll. "Flexible fiber-reinforced plastic formworks for the production of curved textile-reinforced concrete." Advances in Structural Engineering 21, no. 4 (October 5, 2017): 580–88. http://dx.doi.org/10.1177/1369433217732681.
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A new constructive and technological approach was developed for the efficient production of large-dimensioned, curved freeform formworks, which allows the manufacturing of single- and double-curved textile-reinforced concrete elements. The approach is based on a flexible, multi-layered formwork system, which consists of glass fiber–reinforced plastic. Using the unusual structural behavior caused by anisotropy, these glass fiber–reinforced plastic formwork elements permit a specific adjustment of defined curvature. The system design of the developed glass fiber–reinforced plastic formwork and the concrete-lightweight-elements with stabilized spacer fabric was examined exhaustively. Prototypical curved freeform surfaces with different curvature radii were designed, numerically computed, and produced. Furthermore, the fabric’s contour accuracy of the fabric was verified, and its integration was adjusted to loads. The developed textile-reinforced concrete had a high three-point bending tensile strength. Beyond that it was ensured that the textile-reinforced concrete had a high durability, which has been shown by the capillary suction of deicing solution and freeze–thaw test with a low amount of scaled material and a relative dynamic E-modulus of 100% after 28 freeze–thaw cycles.
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Agriansyah, Eza, Eko Andi Suryo Suryo, and Eva Arifi. "SELECTION OF METHODS OF CARRYING OUT FLOOR PLATE BEKESTING WORK WITH COST COMPARISON." Applied Research on Civil Engineering and Environment (ARCEE) 5, no. 01 (February 29, 2024): 14–23. http://dx.doi.org/10.32722/arcee.v5i01.5753.
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The process of developing an area can begin with infrastructure development, where one example of such infrastructure is a building that has various functions. The Surabaya City X building construction project is one of the objects that will be studied in this study. This project has an estimated value of Rp183.000.000.000.00. With a project value of that size, this study aims to choose alternative materials for floor slab formwork work. Floor plate formwork work is one type of work that results in the waste of material used for formwork. Formwork planning requires consideration of using a method or methods to make it easier and cheaper, especially for buildings that are the same shape as the previous building and are of the same size. Conventional floor plate formwork materials are wood, multiplex, and nails; alternative choices are conventional formwork, semi-system formwork, full-system formwork, and bondek plate formwork. The results of this study indicate that when initially analyzed using conventional formwork, it costs Rp6.421.406.646; when using alternative semi-system formwork, it costs Rp6.002.969.805; using full system formwork costs Rp5.530.690.993; and if using bondek plate formwork, it costs Rp6.116.119.937.
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Hansen, Seng, Pratama HR Siregar, and Jevica. "Analytic Hierarchy Process-Based Decision-Making Framework for Formwork System Selection by Contractors." Journal of Construction in Developing Countries 25, no. 2 (December 15, 2020): 235–55. http://dx.doi.org/10.21315/jcdc2020.25.2.10.
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This article presents a study of the contractors' preference for formwork system selection in Indonesian context. As decision makers, contractors are faced with challenges in choosing the formwork system for a particular project. While conventional timber formwork has been the most used formwork system in Indonesia, aluminium formwork is present although it has not been widely used. Thus, this research investigates the current practices of available formwork systems and its selection criteria in Indonesia. A decision-making framework (DMF) is developed by considering the appropriate assessment criteria for formwork system selection. This framework is then implemented through analytic hierarchy process technique. The result shows that contractors tend to choose aluminium formwork with a preference at 79% compared to conventional timber formwork with a preference at 21%. These findings can be used as considerations for contractors to start using aluminium formwork due to its excellence compared to conventional timber formwork. This study also proves that the proposed DMF can be applied and provides a sound decision related to formwork system selection.
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Lloret-Fritschi, Ena, Joseph Choma, Fabio Scotto, Anna Szabo, Fabio Gramazio, Matthias Kohler, and Robert J. Flatt. "In-Crease: Less Concrete More Paper." RILEM Technical Letters 7 (February 20, 2023): 199–208. http://dx.doi.org/10.21809/rilemtechlett.2022.168.
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Concrete is one of the most used materials after water. Largely owing to this, its environmental impact is substantial, although its embodied carbon per unit volume or mass is low when compared to most alternatives. This, along with the broad availability, good strength, durability and versatility of concrete means that it will remain a material of choice, although more efficient ways of using it must be found. Structurally optimized building components are a means to do this as they can save about 50% material. Unfortunately, however, such elements are presently too expensive to produce owing to them requiring non-standard formwork. It is an objective of digital fabrication to propose solutions to this issue. In this con-text, Digital Casting Systems (DCS) have advanced material control strategies for setting-on-demand in digital concrete processing. Thereby, the formwork pressure is reduced to a minimum, which opens possibilities of rethinking formworks as systems that are dynamically shaping, millimetre thin or weakly supporting the material cast inside. In this paper we present a brief overview of millimetre thin formworks and summarize the first realization of concrete elements that utilizes the mechanics of paper folding to make millimetre thin formworks up to 2.5 meters high. Such formworks could initially be flat packed, erected into shape, and eventually peeled-off and recycled in established material streams. This would reduce waste and transport cost, while offering a surface finish that meets the expectations for exposed concrete surfaces.
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Guspari, Oni, Mafriyal Mafriyal, Rahmi Hidayati, Zulfira Mirani, and Picko Wike Amelia. "Analisis Perbandingan Biaya Pekerjaan Bekisting Konvensional dan Bekisting Sistem Pada Bangunan Gedung." Jurnal Ilmiah Rekayasa Sipil 19, no. 1 (April 30, 2022): 68–76. http://dx.doi.org/10.30630/jirs.v19i1.740.
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Formwork is a temporary concrete mold that holds the concrete from fresh concrete until the concrete reaches sufficient strength. Besides the strength and easy to implementation, the cost of formwork is important thing to consider. In this study, the cost of column, beam and floor slab formwork will be analyzed by comparing the conventional formwork and system formwork on the 1st floor of the IAIN Bukittinggi Laboratory Development Project.
This research begins by collecting the main data, namely shop drawings so that the volume and also cost of formwork can be calculated. For analysis conventional formwork using the unit price analysis based on the PUPR Ministerial Regulation 2018, but for price of materials and worker wages based on the Bukittinggi area in 2019. While for system formwork, the rental price based on formwork and scaffolding company, PT. Wijaksana Perkasa Beton.
The result of this study indicated that for the 1st floor of the Laboratory Development Project of IAIN Bukittinggi, the cost of system formwork is more expensive than conventional formwork, i.e Rp 381,260,039.29 for system formwork compared to Rp 336,629,299.41 for conventional formwork. The results of this study also have not compared of the speed and ease of carrying out the work between the two types of formwork which will be investigated in the next stage.
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Agriansyah, Eza, Eko Andi Suryo, and Eva Arifi. "Comparison of Formwork use in Building X Project in Surabaya City." Civil and Environmental Science 6, no. 2 (October 1, 2023): 146–54. http://dx.doi.org/10.21776/civense.v6i2.411.
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The Value Engineering method is a method that analyzes the problems of a project through a systematic and organized approach by eliminating unnecessary costs without reducing the function, appearance, quality, and reliability of the project. The object x building, which has an estimated project value of IDR 42,812,329,371 in structural work. With the estimated value of the work costing a lot, it is, therefore, necessary to make efforts to streamline costs by using the value engineering method; this study aims to choose an alternative material for it. This research method uses a Pareto chart to find the highest work value. The results of this study indicate that the beam work is priced at IDR 15,088,457,899, floor plate work of IDR 12,530,471,281, column work of IDR 10,228,438,679. The results of the analysis of alternative structural calculations using semi-system formwork and full system formwork, which initially used conventional formwork, were simulated using alternative 1, namely semi-system formwork,k and by using alternative two full system formwork. The two alternatives are applied to column, beam and floor plate formwork. So, for this building, it is recommended to replace formwork because the conventional formwork used in this building incurs a large enough price, it is necessary to save on beam parts, and it is recommended to use full system formwork because the cost of beam formwork using full system formwork is IDR 134,950 per square meter. For the floor plate formwork, it is recommended to use a full floor plate formwork system because the cost per square meter is IDR 202,360. And for columns, it is recommended to use full system formwork because the cost of column formwork if using full system formwork is IDR 115,290. And from the use of all the full-system formwork for structural work, a total cost of IDR 40,312,992,291.32.
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Abdunnafi, Ginanjar, M. Agung Wibowo, and Bambang Purwanggono. "KAJIAN PERBANDINGAN PENGARUH PENGGUNAAN BEKISTING ALUMINIUM DAN PERTH CONSTRUCTION HIRE (PCH) DALAM MEWUJUDKAN LEAN CONSTRUCTION." Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil 26, no. 2 (December 1, 2021): 156. http://dx.doi.org/10.32497/wahanats.v26i2.3130.
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Technological developments have led to innovations in construction materials science, one of which is formwork materials. There are several important aspects in formwork innovation, namely cost, speed, quality, waste, and health safety environtment (HSE), but they have not fully had a positive impact on construction project development. However, it has not fully had a positive impact on construction projects. In addition, what aluminum formwork manufacturers offer so far may not necessarily suit the needs of customers. The purpose of this study is to analyze the comparison in terms of cost, time, waste, and HSE between projects using aluminum formwork and the same project simulated using Formwork Perth Construction Hire (PCH). In this study: (1) simulation on the project if the project uses PCH formwork (2) comparative analysis of products in terms of time, cost, quality, waste, HSE on real projects using aluminum formwork with projects that have been simulated using PCH formwork. The effect of using aluminum formwork when compared to a simulation project using PCH formwork: (1) in terms of the time it can provide 25.92% savings on the total duration of the simulation results project, (2) in terms of costs, it can provide a total cost savings of IDR 895,756,004,00 (3) in terms of quality, the use of aluminum formwork is stronger, durable quality, and the results of the concrete molding are tidier than using PCH formwork (4) in terms of waste, projects that use aluminum formwork produce less waste than using PCH formwork. PCH formwork. (5) in terms of HSE, aluminum formwork is safer, more environmentally friendly because it has minimal waste, and is safe for workers
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Dadaso Desai,, Aditya, Vishnu Dnyaneshwar Biradar, and Dr Prof D. B. Desai. "SLIP FORMWORK." International Journal of Engineering Applied Sciences and Technology 7, no. 2 (June 1, 2022): 158–60. http://dx.doi.org/10.33564/ijeast.2022.v07i02.022.
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Slip forming is one of the most effective processes for constructing unconventional structures such as cooling towers, chimneys, and silos, as well as roadway and bridge construction. Formwork made using slips techniques used on a construction with a height of more than 16 meters and its unique design. Techniques for erection that are both quick and cost-effective. Slip forming takes into account. The fastest erection is 7.2 meters per day. procedure. They have a variety of components, and when they're finished, they're ready to use. It was elevated up and further by the hydraulic jack of curtain height concreting. It's possible to undertake some concreting. As a result, these methods are quick and efficient. Savings; cost-effective; and fewer workers are required.
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Jung, Sung-Chul, and Sang-Soo Lee. "System Formwork." Journal of the Korea Institute of Building Construction 2, no. 4 (December 1, 2002): 39–49. http://dx.doi.org/10.5345/jkic.2002.2.4.039.
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Ringwald, Richard C. "Formwork Design." Journal of Construction Engineering and Management 111, no. 4 (December 1985): 391–403. http://dx.doi.org/10.1061/(asce)0733-9364(1985)111:4(391).
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Kemper, Benjamin Norbert. "Bio-Formwork." Open Conference Proceedings 2 (December 15, 2022): 65–70. http://dx.doi.org/10.52825/ocp.v2i.130.
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The following research synthesizes biopolymers with digital fabrication tools, such as robotic 3D printing, to complement existing research on reducing the amount of concrete used in buildings. It investigates bio-based and biodegradable polymers for concrete formworks. The climate crisis challenges architects and designers to explore alternative opportunities for sustainable fabrication processes. Biopolymers have emerged as a potential material to replace petroleum-based plastics used in the built environment. This research aims to rethink the materials used in the construction of buildings and suggests introducing bio-based and biodegradable materials in architecture.
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Majkowski, Łukasz, and Jerzy Pasławski. "FFC – Flexible Formwork Choice. FFF – Flexible Formwork Flow." Inżynieria i Budownictwo LXXIX, no. 11-12 (December 15, 2023): 694–702. http://dx.doi.org/10.5604/01.3001.0054.1392.
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The article presents the concept of formwork selection to guarantee high efficiency of processes related to formwork assembly, reinforcement installation, concreting, maintenance and stripping (and possible dismantling of formwork). The proposed 3F (Flexible Formwork Flow) method uses the basic assumptions of Industry 5.0, Lean and Agile. This means adopting such basic strategies as: employee support by robots (industry 5.0 emphasizes cooperation between people and robots – on construction sites, this means the possibility of using an exoskeleton to support the employee), flexibility and adaptation (flexibility and quick adaptation to changing conditions – during the working day or during the curing and maturation of concrete are crucial to ensuring rhythmic production – e.g. modification of the concrete mix to ensure the possibility of formwork rotation despite changing conditions – e.g. ambient temperature), digitization and data analysis (the use of digital technologies ensures the possibility of monitoring processes in progress and the environment and management in real time), training and development of employees (improving employee skills through training and improving procedures is of key importance, which is the basis for increasing efficiency and reducing the need to perform rework), sustainable development (in the case of construction, this may mean the use of closed-loop or biodegradable materials – minimizing the impact on the environment), minimizing waste (an action typical of lean is aimed at limiting losses resulting from, for example, unjustified storage, transport or waiting). The proposed 3F method, thanks to the above-mentioned strategies, makes it possible to achieve greater compliance of planning and implementation of processes on the construction site and stable process performance despite the need to operate in a turbulent environment. The use of the described 3F method is beneficial for both the formwork supplier (reliability in the operation of the formwork warehouse) and the contractor on the construction site (greater consistency of planning and implementation of processes on the construction site).
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Lee, Bokyeong, Hyeonggil Choi, Byongwang Min, and Dong-Eun Lee. "Applicability of Formwork Automation Design Software for Aluminum Formwork." Applied Sciences 10, no. 24 (December 17, 2020): 9029. http://dx.doi.org/10.3390/app10249029.
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In this study, by applying the developed formwork automation design software to three target structures, we reviewed the applicability of the formwork automation design software for the aluminum formwork. To apply the formwork automation design software, we built an aluminum formwork library based on the conversion of two-dimensional (2D) computer-aided design (CAD) data to three-dimensional building information modeling data for all the components of the aluminum formwork. The results of the automated formwork layout on the target structures using the formwork automation design software confirmed that the wall and deck members were laid out by the set algorithm according to the formwork size and direction. However, because of the limited functionality of the software, the level of completion of the formwork layout was found to be lower than that of the manual formwork layout based on 2D CAD data. The currently developed software is based on a simple algorithm, but has a drawback in that the automated layout is limited to only some of its members. Therefore, additional research should be conducted on the development of advanced software through the diversification of the algorithm, automation of preprocessing of the mesh, and analysis of the relationships of all the members comprising the formwork.
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Mata-Falcón, Jaime, Patrick Bischof, Tobias Huber, Ana Anton, Joris Burger, Francesco Ranaudo, Andrei Jipa, et al. "Digitally fabricated ribbed concrete floor slabs: a sustainable solution for construction." RILEM Technical Letters 7 (September 23, 2022): 68–78. http://dx.doi.org/10.21809/rilemtechlett.2022.161.
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The concrete used in floor slabs accounts for large greenhouse gas emissions in building construction. Solid slabs, often used today, consume much more concrete than ribbed slabs built by pioneer structural engineers like Hennebique, Arcangeli and Nervi. The first part of this paper analyses the evolution of slab systems over the last century and their carbon footprint, highlighting that ribbed slabs have been abandoned mainly for the sake of construction time and cost efficiency. However, highly material-efficient two-way ribbed slabs are essential to reduce the environmental impact of construction. Hence, the second part of this paper discusses how digital fabrication can help to tackle this challenge and presents four concrete floor systems built with digitally fabricated formwork. The digital fabrication technologies employed to produce these slab systems are digital cutting, binder-jetting, polymer extrusion and 3D concrete printing. The presented applications showcase a reduction in concrete use of approximately 50% compared to solid slabs. However, the digitally fabricated complex formworks produced were wasteful and/or labour-intensive. Further developments are required to make the digital processes sustainable and competitive by streamlining the production, using low carbon concrete mixes as well as reusing and recycling the formwork or structurally activating stay-in-place formwork.
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Liu, Cai, Qirong Wu, Xiaolian Wu, Mengzhu Han, Xin Guan, and Jinguo Lin. "Influence of slab structure on the performance of bamboo based concrete formwork." BioResources 15, no. 4 (August 12, 2020): 7503–16. http://dx.doi.org/10.15376/biores.15.4.7503-7516.
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To reduce the density of bamboo-based concrete formwork on the premise of meeting the performance requirements, the bamboo was first treated by cold plasma, and then by increasing the distance between the adjacent bamboo strips of the radial bamboo curtain in the middle layer, the internal porosity was increased. The production of lightened bamboo based concrete formwork, which meets China’s forestry industry standards, was achieved. Four groups of bamboo-based concrete formworks with different slab structures were designed. The key results showed that slab structures have an extremely significant effect on the density, MOR, MOE, IB, and TS of the bamboo-based concrete formwork. A group of optimal slab structures was obtained by comparing their physical and mechanical properties (1st and 9th floor-phenolic resin impregnated paper, 2nd and 8th floor-bamboo mat, 3rd and 7th floor-tangential bamboo curtain, 4th and 6th floor-radial spaced bamboo curtain). Based on the required physical and mechanical properties, its density was 0.62 g·cm-3, which was 27.1% lower than that of traditional bamboo plywood template (0.85 g·cm-3) circulating on the current market. This lightened BBCF can save raw materials, facilitate transportation and reduce labor intensity in the application process so that it will be widely used in building construction.
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Natalia, Monika, Hendra Alexander, Merley Misriani, Muhammad Zaqharia, and Dani Kurniawan. "Efficiency of Using PERI Formwork in Low-Rise Buildings Project." UKaRsT 7, no. 2 (November 29, 2023): 188–201. http://dx.doi.org/10.30737/ukarst.v7i2.5097.
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Concrete construction is still the main choice because of its high strength, durability, and ability to withstand heavy loads. In reinforced concrete construction, formwork is a fairly important element. Formwork significantly impacts the efficiency of construction implementation. Formwork innovation has found PERI formwork to be a solution that many consider more efficient. Efficient use of PERI formwork is an important focus to increase productivity, minimize time, and reduce construction costs. This research aims to analyze the quality, cost, and implementation time of PERI formwork compared to conventional formwork in 2-story buildings. Quantitative methods are used to evaluate quality (strength of bending, safe deflection, and strength of the shear) using SAP 2000, implementation time using Microsoft Project, and project costs using unit price analysis. The research results show that using the PERI formwork system can provide various efficiencies in formwork work. PERI formwork has been proven stronger in withstanding loads and meets current load regulations. It can save project implementation time by up to 21 working days (24.7%) with a cost reduction of 4.72%. This is because the installation cycle is faster, which can increase productivity and reduce costs. So, using the PERI system formwork has proven efficient and can be the best choice for low-rise building construction projects.
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Vansya, Muhammad Lawdy Dhiyaa, Eva Arifi, and Ming Narto Wijaya. "The Effectiveness Of Using Column Formwork In A Multi-Story Building Construction Project." Rekayasa Sipil 18, no. 2 (June 24, 2024): 165–71. http://dx.doi.org/10.21776/ub.rekayasasipil.2024.018.02.14.
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Building the structural components is crucial for constructing a multi-story building. In the process of creating these components, which is commonly done through casting, a tool called formwork is required. Formwork is a tool used to mold the necessary concrete structures, ensuring that their shape and dimensions align with the concrete material's planning. Formwork tasks for concrete work significantly impact costs. Different formwork options, including traditional, semi-system, and full-system forms, are available. This research aims to assess cost-effectiveness through value engineering, specifically focusing on column formwork, by comparing their utilization in a multi-story construction project. The study begins by collecting primary data, namely working drawings, so that the volume of conventional formwork can be calculated. Then, budget planning calculations are made to analyze the cost comparison of each formwork alternative. The selection of the appropriate formwork affects the speed of execution and the costs incurredIn this construction project for the building, the conventional column formwork results in expenses amounting to IDR 587,749,263.04 and requires 28 days for completion, while semi-system column formwork achieves a 37% cost saving with the same duration of 28 days, and full-system column formwork becomes 64% more cost-effective with a construction period of 10 days.
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Yao, Gang, Haoting Guo, Yang Yang, Chengming Xiang, and Soltys Robert. "Dynamic Characteristics and Time-History Analysis of Hydraulic Climbing Formwork for Seismic Motions." Advances in Civil Engineering 2021 (March 12, 2021): 1–17. http://dx.doi.org/10.1155/2021/2139153.
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With the widespread use and increasing cycle life of climbing formwork to construct high-rise buildings in earthquake-prone areas, the risk of earthquakes during the construction period increases. Hence, it is necessary to analyze the seismic response of climbing formwork. According to actual climbing formwork in the super high-rise office building of Wanda Plaza in Kunming, China, the finite element model of the climbing formwork is established on the Ansys platform. The correctness of the model is verified by comparing the natural frequencies of the actual climbing formwork and the finite element model. The time-history analysis of the climbing formwork subjected to earthquakes of varying strong magnitudes is carried out. The maximum displacement position and maximum von Mises stress position of the climbing formwork under different working conditions are determined, and the seismic response of the climbing formwork is analyzed. It has been found that when the formwork is under construction, the maximum displacement position of the climbing formwork is at the center of the long beam of the upper platform, and the maximum von Mises stress position is the joint of the outer pole of the main platform and tripod. Under the climbing condition, the maximum displacement position of the climbing formwork is at the top of the outer pole of the upper platform, and the maximum von Mises stress position is the joint of the beam of the tripod and guide rail. The climbing formwork is partially damaged under the simulated earthquake. However, the displacement is large, and some components have reached the yield state. It is recommended to strengthen the connection between the upper platform and the guide rail and enhance the strength and rigidity of the outer pole and tripod. Climbing formwork is more sensitive to horizontal earthquakes and has minimal sensitivity to vertical earthquakes. The structure attached to the climbing formwork will reduce its sensitivity to earthquakes. The research results are of practical significance for seismic design and improvement of climbing formwork.
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Cai, Xue Feng, Jin Ping Zhuang, and Ming Bei Tuo. "Heaped Load Experiment Research on Glass Fiber Mat Reinforced Thermo Plastics Formwork Support Unit." Advanced Materials Research 446-449 (January 2012): 3678–81. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.3678.
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Four formwork support units were experimental studied by heaping load,including three glass fiber mat reinforced thermo plastics (GMT) formwork support units and one 18mm plywood formwork support unit. Compared with 18mm plywood formwork support unit, the vertical poles force distribution in GMT formwork support units were analyzed. The experimental parameter also included vertical poles height difference and their values were follows: 0mm, 2mm and 4mm. The results showed that the vertical poles force distribution are uneven in GMT formwork support unit and vertical pole height differences have influence on their force distribution.
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Kotwal, Roshan S., Nivrutti V. Pawar, Rahul R. Funde, Maroti S. Chidre, and Vijaykumar Bhusare. "Modified Formwork System for Slab Element." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (May 31, 2022): 210–12. http://dx.doi.org/10.22214/ijraset.2022.42098.
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Abstract: Formwork in construction is the use of support structures and moulds to create structures out of concrete which is poured into the moulds. Formwork can be made using moulds. Out of steel, wood, aluminium and , or prefabricated forms. 2. Formwork refers to either temporary or permanent moulds into which concrete or similar materials are poured. In the context of concrete construction, the falsework supports the shuttering moulds. 3. Formwork is an ancillary construction, used as a mould for a structure. Into this mould, fresh concrete is placed only to harden subsequently. The construction of formwork takes time and involves expenditure up to 20 to 25% of the cost of the structure or even more. The operation of removing the formwork is known as stripping. Stripped formwork can be reused. Reusable forms are known as panel forms and non-usable are called stationary forms. Keywords: Modified Formwork, Slab
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Ko, Chien-Ho, and Jiun-De Kuo. "MAKING FORMWORK CONSTRUCTION LEAN." Journal of Civil Engineering and Management 21, no. 4 (March 30, 2015): 444–58. http://dx.doi.org/10.3846/13923730.2014.890655.
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Formwork material and payroll are among the greatest costs in building reinforced concrete structures. Therefore, formwork engineering is a key factor affecting project success. Traditional formwork construction entails non-value-adding activities resulting in waste. The objective of this study is to adapt lean manufacturing techniques to formwork engineering in a bid to reduce waste, specifically by developing a lean formwork construction model. In the model, andon is used to establish an on-site quality control culture, allowing form workers to obtain assistance immediately whenever a problem occurs. In addition, formwork operations are pulled through the kanban system to reduce mould inventory and achieve continuous construction flow. A case study is used to validate the applicability of the proposed model. Results show that the proposed model can effectively reduce waste in the formwork construction flow and increase the value of operations, thus providing a new approach to improving formwork engineering.
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Liu, Li, Bo Wang, Ya Nan Liu, and Ju Chao Wang. "Analysis on Lateral Deformation of High-Formwork in Different Column’s Spacing of Bridging." Applied Mechanics and Materials 580-583 (July 2014): 2228–31. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.2228.
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Setting bracing is conducive to stabilize formwork support in high-formwork system. ABAQUS was used to build the calculating model of high-formwork system to simulate and analyse lateral deformation of high-formwork in different column’s spacing of bridging. The results show, increasing column’s spacing of bridging can add the whole lateral displacement of high-formwork, but, it is not obvious. Increasing appropriately column’s spacing can save material during construction.
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Mammadov, Jeyhun, and Kamala Mammadova. "OPERATING PRINCIPLE OF SLIDING FORMWORK AND DETERMINING THE DISTANCE BETWEEN RODS OF JACKING FRAMES." Scientific works/Elmi eserler 2 (April 2, 1996): 114–18. http://dx.doi.org/10.58225/sw.2022.2.114-118.
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Abstract. This article discusses the principle of operation of the sliding formwork, the main elements, the features of measuring and determining the optimal distance between the jacking frames of the formwork system. The principle of operation considers jacks that are used when concreting the formwork, with the help of which they raise the formwork to the desired height for the construction of reinforced concrete structures. It also talks about efficiency especially in the construction of high-rise buildings. In seismic regions, the problem of their reliability and seismic resistance is being solved. Using one set of formwork, by reconfiguring it, the construction of buildings of various planning solutions and different number of storeys is carried out. Given the material from which the sliding formwork is made. The specifics of the operation of manual, hydraulic and electric jacks, with the help of which the formwork is lifted to the desired height. At idle, the forces from the jacking frame and the weight of the formwork adjacent to it are transferred to adjacent jacks. The division of formwork panels according to design features can be divided into large and small panels. Basic formulas for vertical load and distance between jacking rods. Keywords: reinforcement, jack, formwork, jack rod, working floor, frame
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Nitesh Baban Patekar and A. F. Shaikh. "Assessing the impact of conventional formwork and Mivan formwork on construction productivity and efficiency." World Journal of Advanced Engineering Technology and Sciences 9, no. 1 (June 30, 2023): 240–47. http://dx.doi.org/10.30574/wjaets.2023.9.1.0168.
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The construction sector is continuously exploring innovative strategies to enhance productivity and efficiency. This research project centers on evaluating the use of conventional formwork and Mivan formwork in construction projects, aiming to improve construction productivity and efficiency. The primary objective is to compare the time and cost requirements of these two formwork systems to assess their impact on project outcomes. The study employs a mixed-methods approach, combining quantitative and qualitative analyses. A comprehensive review of existing literature is undertaken to gather knowledge on conventional formwork, Mivan formwork, construction productivity, and efficiency. Data is collected from construction projects that have employed both formwork systems, and key performance indicators such as project duration, labor productivity, material consumption, and costs are examined and compared. The findings will provide valuable insights into the advantages and limitations of conventional formwork and Mivan formwork. The analysis will identify the factors that influence productivity and efficiency in each system and highlight areas for potential improvement. The ultimate aim of this study is to provide guidance to construction professionals in making informed decisions regarding the selection of formwork systems, taking into account factors such as cost, time, labor requirements, and quality. Additionally, the research will contribute to the existing knowledge base on construction productivity and efficiency, offering recommendations to enhance project outcomes. By identifying the strengths and weaknesses of conventional formwork and Mivan formwork, this study seeks to drive advancements in construction practices and contribute to overall industry improvement.
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Liu, Hai Qing, and Jian Jun Zhao. "Application of High-Formwork Technology in Wusong Road Passenger Station." Advanced Materials Research 663 (February 2013): 92–96. http://dx.doi.org/10.4028/www.scientific.net/amr.663.92.
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Combining with the construction of Wusong Road Passenger Station, the paper explores the calculation method and construction technology of high-formwork support system, proposes the construction measure requirements of formwork, introduces the technical process, accumulates the experience of high-formwork design and construction, and popularizes the application of high-formwork technology in projects, which decreases the security accidents of high formwork and provides reference for the construction of similar projects in future.
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Ma, Yan Fang, Zhen Tong He, and Qin Zhao. "Structural Finite Element Analysis on Side Wall Pouring Formwork Trolley for Subway Station." Applied Mechanics and Materials 380-384 (August 2013): 95–100. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.95.
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Structure finite element analysis software ANSYS is used to establish relatively complete finite element model for automatic side wall formwork trolley, analyze the stability of formwork trolley under light condition and work condition, and give a correct classification on working conditions of formwork trolley. Main factors influencing the stability of formwork trolley are found and improving measures are proposed to provide reference for optimal structure design and standardized design of formwork trolley.
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Wang, Jinxing, Zhicheng Wan, Jiaxu Wang, Yi Zou, Junyao Xu, Jingfeng Wang, and Fusheng Pan. "The Research Progress of Magnesium Alloy Building Formwork." Materials 17, no. 14 (July 18, 2024): 3570. http://dx.doi.org/10.3390/ma17143570.
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Building formwork is a kind of temporary supporting structure consumable material used in the construction field. In recent years, building formwork has gradually developed to become lighter, more environmentally friendly, and have higher performance. This sets higher requirements for the materials used to make building formwork. There is an urgent need to find a lighter and more durable material for building formwork. Magnesium alloys possess the advantages of low density, high alkali resistance, and high strength. As a building formwork material, it can reduce the weight of formwork and improve its durability. Therefore, a magnesium alloy is considered a material with high potential for building formwork. Currently, magnesium alloy building formwork has attracted the attention of many companies and research and development institutions, with preliminary research applications and good feedback on usage effects. It is highly possible to obtain the opportunity to put it into market application. However, to be applied on a large scale, there are still some important problems that need to be solved. These problems fall into three main areas, including the relatively low processing efficiency of magnesium alloy materials, the unstable price of magnesium alloys, and the fact that the formwork is easily corroded during storage. Firstly, at present, the main processing methods for magnesium alloy building formwork are casting and extrusion, and the production efficiency of both methods needs to be improved. Secondly, high-performance magnesium alloy materials are usually more expensive, which is not conducive to the large-scale application of the formwork. The price of magnesium alloys has fluctuated greatly in recent years, which increases the difficulty of promoting magnesium alloy building formwork. Thirdly, in the atmosphere, the oxide film on the surface of the magnesium alloy cannot play an effective role in corrosion resistance. So, surface treatment is necessary for magnesium alloy building formwork. Among the various surface treatment methods for magnesium alloys, the chemical conversion method has the advantages of being easy to operate, cost-effective, and having good corrosion resistance. It may be a very suitable protective method for large-scale applications of magnesium alloy building formwork and possesses excellent potential for application. The future of magnesium alloy building formwork will focus on new low-cost materials, high-efficiency processing technology, and low-cost green anti-corrosion technology. With in-depth research and the maturation of technology, magnesium alloy formwork is expected to play a more important role in the construction industry.
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Xing, Jun, Hong Liang Cai, and Jian Bing Cheng. "Optimization Design and Application of Sluice Pier Sliding Formwork." Advanced Materials Research 671-674 (March 2013): 2005–10. http://dx.doi.org/10.4028/www.scientific.net/amr.671-674.2005.
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The sliding formwork, combining high efficiency and low cost, is a kind of advanced technology in the construction of sluice pier of hydropower projects. Number of jacks and elevating shelf spacing are two important parameters in the structure design of sliding formwork, the mathematical model of the relationship between manufacture costs and jack number, spacing between the elevating shelf was established using polynomial least square method, the best value of jack number and spacing between the elevating shelf were calculated by using the simulated annealing algorithm, thereby optimized the design parameters of sliding formwork structure, whilst expatiated the technology of installing, debugging, sliding and disassembly of sliding formwork, put forward the feasible methods for solving the problems that often appeared in the construction of sliding formwork, summed up the merits of sliding formwork, analyzed the technology and economical benefit of sliding formwork
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Baskova, Renata, Alena Tazikova, Zuzana Strukova, Maria Kozlovska, and Jozef Cabala. "A Dynamic Model for Effective and Optimal Planning of Formwork in Construction Projects." Buildings 13, no. 7 (July 14, 2023): 1794. http://dx.doi.org/10.3390/buildings13071794.
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The cost of producing one cubic meter of concrete structure, depending on the structure’s shape, type, and complexity, can be variously high. The cost of concrete, reinforcement, formwork, and labor ratio varies. But unlike the cost of concrete and reinforcement, which tend to be similar in the terms of the conditions of a particular construction project, the cost of formwork and work with it are different for different contractors. It often depends on the appropriateness of the formwork system used, the optimal placement of the formwork sets, the minimization of downtime, and the efficiency of the carpenters’ work. Formwork modeling in the construction preparation phase intervenes in this planning area, where construction sources are defined and quantified, and the time course of their deployment is determined. The current paper deals with optimizing formwork selection and deployment in concrete structure execution. Even if several requirements must be considered when selecting and modeling the formwork (e.g., construction time, quality of concrete structure, etc.), an effort to minimize the cost of formwork, and thus construction cost, plays the most significant role. A dynamic model for effective and optimal planning of formwork in construction projects, including formwork cost analysis, is presented in the paper. The included case study demonstrated the planning of the formwork through a software application developed based on the computational algorithm of the dynamic model presented. A case study is presented in the article as a research method. An office building with five above-ground floors and one underground floor was chosen for the case study. To solve the case study, the formwork for horizontal structures (i.e., beams and slabs) is considered. The goal of the case study is to identify research questions and apply time and cost optimization to a selected specific building.
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Szóstak, Mariusz, and Mateusz Napiórkowski. "Formwork designing in BIM technology." Przegląd Budowlany 94, no. 1-2 (February 26, 2023): 39–41. http://dx.doi.org/10.5604/01.3001.0016.2696.
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System formwork is commonly used on constructionsites. The article discusses the aspect of designing, selectionand modeling formwork. As part of the conducted analyses,authors present a review of plugins available on the marketfor formwork modeling from selected formwork manufacturers.Using the PERI Library+ plug-in for Autodesk Revit, authors modeledan example of wall and floor formwork project. In addition,an analysis of the usefulness of modeling was carried out,which allowed to indicate the benefits of BIM in aspect of systemformwork
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Lin, Lee Kuo, Yueh Ching Wu, and Bing Chen Tseng. "Value Management and Analysis of Plastic Formwork." Advanced Materials Research 773 (September 2013): 455–59. http://dx.doi.org/10.4028/www.scientific.net/amr.773.455.
Full textAbstract:
The civil and construction industry is the basis of industries, it has always been known as the "leading industry" and in such industry the basic material is reinforced concrete. Even in this 21st century materials science and engineering methods have developed perfectly, reinforced concrete still is the main structure material in civil and construction industry. Formwork activity is one of indispensable matters during concrete forming and hardening processes. Once the forming process has defect, it might cause the formwork collapse during the concrete placing procedure. Such damage will result in pecuniary loss or workers life. This illustrating that the formwork is one of the most important materials in theconstruction industry. In general, formwork is mainly usedtimberas its rawmaterial. Therefore, the wooden formworkwill naturallydestruct and discard after repeating four to six times. But the remaining nail and chemicals treatment on the timber surface of the waste formwork always make the subsequent activity not easily. Such process does not echo todays trend of emphasis on the energy conservation and environmental protection. Besides, in order to keep the progress of the industry, all kinds of civil and construction industries are still continuous without considering the global temperature is getting warmer. But the timber,asaformwork rawmaterial,thespeedof deforestation is far behind the progress of forestation. Timber material will bedeforested somedaywith such vicious cycle. Therefore, if there is any appropriate material to replace wooden formwork, it will be a valuable issue for further research. The subject of this research is using value analysis to compare function and cost between plastic formwork plate and wooden formwork plate. For the study analysis, due to thelife cycleoftheplastic formwork plate andwooden formwork plate are notthe same, so this research developstheconceptoflife cost for doing the performance comparison between plastic formwork and wooden formwork with workability, cost, flat surface and environment. The study result shows the plastic formwork is full with potential to develop.