Academic literature on the topic 'Formwork'

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Journal articles on the topic "Formwork"

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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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Dissertations / Theses on the topic "Formwork"

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Orr, John. "Flexible formwork for concrete structures." Thesis, University of Bath, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566135.

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Concrete, our most widely used construction material, is a fluid that offers the opportunity to economically create structures of almost any geometry. Yet this unique fluidity is seldom capitalised on, with concrete instead being cast into rigid prismatic moulds to create high material use structures with large carbon footprints. Our rate of concrete consumption means that cement manufacture alone is estimated to account for some 5% of global Carbon Dioxide emissions. This dissertation shows that by replacing conventional orthogonal moulds with a flexible system comprised primarily of high strength, low cost fabric sheets, the fluidity of concrete can be utilised to create structurally optimised concrete structures. Flexible formwork therefore has the potential to facilitate the change in design and construction philosophy that will be required for a move towards a less material intensive, more sustainable, construction industry. Optimisation and design processes developed in this thesis show that material savings of up to 40% are possible in flexibly formed concrete beams. Full scale structural testing of these processes is undertaken to verify the flexural and shear behaviours of non-prismatic elements. This is supported by further experimental and theoretical investigations into the durability of concrete cast in a permeable, flexible mould. Detailed analysis is provided alongside practical guidance for designers. Coupled with innovation in design and analysis techniques, flexible formwork is shown to provide a globally accessible method for the construction of low carbon, materially efficient and architecturally interesting concrete structures. Recognising the impact construction has on the environment, design philosophies centred around the need to put material where it is required are becoming increasingly desirable. This can now be achieved by replacing rigid formworks with systems comprised of flexible sheets of fabric. This is a step change in the way we think about our new concrete structures.
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Suzumori, Shuji. "Formwork as a design tool." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/34428.

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Thesis (M. Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2006.
Page 135 blank.
Includes bibliographical references.
An integral counterpart to the free form potential of concrete is the formwork which gives it its solid shape and texture. Naturally, the formwork takes up a bulk of the cost and labor time in reinforced concrete construction. However, despite its importance., formwork currently receives little attention from architects and is rather innovated by contractors. Therefore, in hope to align architecture and engineering through an interlacing of knowledge that have developed on each side of the concrete divide, this thesis reexamines formwork as an instrumental tool of formative process and investigates new potentials for concrete structures, reconsidering the material, fabrication, and construction methods of formwork and ultimately introducing digital technologies that might inform these aspects from design to construction.
by Shuji Suzumori.
M.Arch.
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Tah, Joseph H. M. "Integrated microcomputer applications in formwork design." Thesis, Loughborough University, 1989. https://dspace.lboro.ac.uk/2134/12427.

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Despite the arguments in favour of the application of computers in temporary works design, as highlighted in previous research, there was a lack of suitable software at the start of this research. The main objective of this research has been to design and develop software for a major temporary works item. Formwork design was selected from several classes as it provided a larger problem domain. Achieving the main objective necessitated the establishment of a strategy for implementing software in temporary works design using a systems engineering approach. After studying the state-of-the-art of computer application in engineering, construction, and temporary works design, an integrated program network strategy was established for implementing software in temporary works design. This involved the coupling of microcomputer-based packaged Computer-Aided Drafting and Database Management Systems with temporary works design applications. The coupling was achieved through the combination of a database/executive approach. This strategy was then used to design, develop, and validate a computer-aided design system for formwork. To establish the formwork design process, contemporary formwork design methods were studied by reviewing literature and holding informal discussions with eight practicing formwork designers. This study, coupled with an analysis of the formwork designer's. tasks, enabled a functional specification to be produced for a computer-aided design system for formwork. This was used to establish six individual modules that make up the system as follows: a formwork database management module; a concrete pressure modelling module; a rational formwork design module; a detailed form work design module; a drafting module; and a schedule of quantities and cost quotation module. A windowing and menu based human-computer interface was designed and developed for the applications to be developed. The system was produced by designing, developing and testing individual modules, which were finally integrated to form a comprehensive Formwork Integrated Computer-Aided Design System (FICADS). The functions integrated include the analysis/design, drafting, scheduling of quantities, and cost estimating of formwork. The system was tested and assessed by means of several case studies and demonstrations to expert form work designers which proved favourable. The main achievement has been the development of a computer-aided design system for formwork that was acceptable to formwork designers. In the development of the system, a conceptual framework within which temporary works design systems can be developed with great flexibility, confidence and a minimum of programming effort has been established.
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Ferguson, Steve, University of Western Sydney, College of Health and Science, and School of Engineering. "Limit states design of steel formwork shores." THESIS_CHS_ENG_Ferguson_S.xml, 2003. http://handle.uws.edu.au:8081/1959.7/565.

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Approximately half of all framework collapses occur during concrete placement. Researchers who have measured the actual loads in formwork shores consistently found that they differ from those predicted. There is some evidence that current methods tend towards underestimation. In Australia the current practice for designing steel formwork shores is set out in Australian Standard AS 3610-1990 Formwork for Concrete. It was the first national standard to be published in limit states format and departed from previous practice introducing new methods for the design of formwork shores. Prompted by doubt cast on current practice and the absence of hard basis for the methods set out in AS 3610, the aim of the research is to develop new more reliable rules for the design of steel formwork shores. This is achieved using first-order probabilistic techniques to compare the reliability of new and reused shores designed in accordance with AS 3610 with current international permissible stress and limit states methods form British, American, Israeli and draft European formwork Standards
Master of Engineering (Hons)
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Alamin, Basher. "Analysis of construction loads on concrete formwork." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0006/MQ43645.pdf.

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Ferguson, Stephen Angus. "Limit states design of steel formwork shores /." View thesis, 2003. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20060504.153139/index.html.

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Thesis (M. Eng.) (Hons) -- University of Western Sydney, 2003.
"A thesis submitted in fulfilment of the requirements for the degree of Master of Engineering (Hons.) [at] University of Western Sydney, 2003." Bibliography : leaves 105 - 111, and appendices.
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Nago, Belden 1973. "Optimizing the performance and cost of formwork." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47452.

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David, Michael (Michael Steven). "A study of the dynamics of shotcrete formwork." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/60764.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 41).
This study models and analyzes the dynamic behavior of shotcrete formwork during standard application procedure. Based on standard shotcrete application, a program was developed to simulate shotcrete application and the dynamic behavior of shotcrete formwork. This study shows that the random behavior standard shotcrete application have minimal impact on the maximum values of displacement and acceleration of a shotcrete formwork system, which justifies the significance of the simulations based on the precision of the results obtained. Standard design parameters were varied in order to determine their impact on the behavior of a formwork system, and determine which parameters had the greatest ability to control the displacement and acceleration of formwork during shotcrete application.
by Michael David.
M.Eng.
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Ikäheimonen, Jukka. "Construction loads on shores and stability of horizontal formwork /." Stockholm, 1997. http://www.lib.kth.se/abs98/ikah0206.pdf.

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Clear, C. A. "The pressure of concrete on formwork in narrow sections." Thesis, University of Hertfordshire, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373959.

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Books on the topic "Formwork"

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Association, British Cement, ed. Formwork. Crowthorne: British Cement Association, 1993.

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Koel, Leonard. Concrete formwork. Homewood, Ill: American Technical Publishers, 1988.

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Hickert, Sascha. Fabrik Formwork. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3.

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Koel, Leonard. Concrete formwork. 2nd ed. Homewood, Ill: American Technical Publishers, 1997.

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Hurd, M. K. Formwork for concrete. 5th ed. Detroit: American Concrete Institute, 1989.

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Hurd, M. K. Formwork for concrete. 6th ed. Detroit: American Concrete Institute, 1995.

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Hanna, Awad S. Concrete Formwork Systems. New York: Marcel Dekker, Inc., 2003.

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Hurd, M. K. Formwork for concrete. 5th ed. Detroit (P.O. Box 19150, Detroit 48219): American Concrete Institute, 1989.

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ACI Committee 347--Formwork for Concrete., ed. Formwork for concrete. 7th ed. Farmington Hills, Mich: American Concrete Institute, 2005.

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D, Oberlender G., ed. Formwork for concrete structures. 3rd ed. New York: McGraw-Hill, 1996.

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Book chapters on the topic "Formwork"

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Keable, Julian, and Rowland Keable. "Formwork." In Rammed Earth Structures, 42–55. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1996. http://dx.doi.org/10.3362/9781780440668.003.

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Hickert, Sascha. "Einleitung." In Fabrik Formwork, 1–10. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3_1.

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Hickert, Sascha. "Fazit." In Fabrik Formwork, 297–300. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3_10.

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Hickert, Sascha. "Potenziale." In Fabrik Formwork, 301–7. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3_11.

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Hickert, Sascha. "Grundlagen." In Fabrik Formwork, 11–42. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3_2.

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Hickert, Sascha. "Bauwerksgeometrie und deren Schalungsmethoden." In Fabrik Formwork, 43–84. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3_3.

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Hickert, Sascha. "Textilien." In Fabrik Formwork, 85–114. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3_4.

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Hickert, Sascha. "Parameteridentifikation." In Fabrik Formwork, 115–46. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3_5.

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Hickert, Sascha. "Bauteilgeometrie." In Fabrik Formwork, 147–78. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3_6.

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Hickert, Sascha. "Mockups." In Fabrik Formwork, 179–254. Wiesbaden: Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31924-3_7.

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Conference papers on the topic "Formwork"

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Peters, Brian. "Additive Formwork: 3D Printed Flexible Formwork." In ACADIA 2014: Design Agency. ACADIA, 2014. http://dx.doi.org/10.52842/conf.acadia.2014.517.

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Ko, Chien-Ho, and Jiun-De Kuo. "Lean Formwork." In 26th Annual Conference of the International Group for Lean Construction. International Group for Lean Construction, 2018. http://dx.doi.org/10.24928/2018/0211.

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Leschok, Matthias, and Benjamin Dillenburger. "Dissolvable 3DP Formwork." In ACADIA 2019: Ubiquity and Autonomy. ACADIA, 2019. http://dx.doi.org/10.52842/conf.acadia.2019.188.

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Fakhratov, M. A., M. S. Akbari, A. Hosaini, and N. Dayoub. "Comparison of the tunnel formwork system and traditional formwork system." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ENGINEERING RESEARCH 2021 (ICER 2021), MOSCOW, RUSSIA. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0099058.

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Jipa, Andrei, Mathias Bernhard, Benjamin Dillenburger, Nicolas Ruffray, Timothy Wangler, and Robert Flatt. "skelETHon Formwork 3D Printed Plastic Formwork for Load-Bearing Concrete Structures." In XXI Congreso Internacional de la Sociedad Iberoamericana de Gráfica Digital. São Paulo: Editora Blucher, 2017. http://dx.doi.org/10.5151/sigradi2017-054.

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Katzer, Jacek, and Aneta Skoratko. "Properties of Steel Fiber Reinforced Concrete Dedicated for Casting Columns with Fractal Based Cross-Sections." In Non-Traditional Cement and Concrete 2023 conference. Switzerland: Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-dan3qg.

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The conducted research program was focused on the creation steel fiber reinforced concrete (SFRC) dedicated for casting columns with fractal based cross-sections. The columns in question were planned to be cast using 3D printed plastic formworks. Harnessing 3D printing of plastic enables easy creation of cross-sections which are not possible to be achieved using traditional formwork techniques. The mix had to be characterized by consistency enabling almost self-compacting behavior, reasonably high volume of fiber (volumes of fiber ranging from 0.5% to 2.0% were considered) and the maximum diameter of used aggregate of 2mm. Due to very complicated cross-sections of planned columns the mix had to be able to effortlessly penetrate very elaborate shapes of fractal formwork. All desired properties were achieved during the research program using two admixtures and micro steel fiber. The mix was tested using column specimens with circular, square and pentagon cross-sections.
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Kudless, Andrew, and Ivan Vukcevich. "Flexible Formwork Research (FPR)." In ACADIA 2006: Synthetic Landscapes. ACADIA, 2006. http://dx.doi.org/10.52842/conf.acadia.2006.x.r8t.

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Doyle, Shelby, and Erin Linsey Hunt. "Dissolvable 3D Printed Formwork." In ACADIA 2019: Ubiquity and Autonomy. ACADIA, 2019. http://dx.doi.org/10.52842/conf.acadia.2019.178.

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Kudless, Andrew, and Ivan Vukcevich. "Flexible Formwork Research (FPR)." In ACADIA 2006: Synthetic Landscapes. ACADIA, 2006. http://dx.doi.org/10.52842/conf.acadia.2006.x.r8t.

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SAGAR, SHWETA, and VIRENDRA KUMAR PAUL. "AN INVESTIGATION OF DIFFERENT FORMWORK SYSTEM FOR HIGH RISE BUILDING CONSTRUCTION AND FOR DECISION SUPPORT SYSTEM." In 13th International Research Conference - FARU 2020. Faculty of Architecture Research Unit (FARU), University of Moratuwa, 2020. http://dx.doi.org/10.31705/faru.2020.6.

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The most important aspect of any successful structural construction is the formwork system. Formwork itself defines as the temporary structure into which the concrete placed to obtain its desired shape and gains its weight to withstand against various loading conditions. This paper focuses on the two parts 1. Identified different formwork systems using in Indian construction industry for high-rise building construction and 2. Explanations of the decision support system for formwork system so that a decision-maker decides or makes the right choice for the selection of formwork system. This study employed a literature review approach (journal paper, research paper, technical articles & notes, and white paper). The methodology divided into two parts; firstly, the identification of the formwork systems used in the construction industry and secondly, to study a brief about decision support system and for formwork system by which the ease to make a decision support frame for the formwork system selection. This paper reflects the different formwork system typology used in the construction industry for high-rise buildings. The outcome of this paper helps to establish the baseline to develop decision support for the formwork system selection.
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Reports on the topic "Formwork"

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Nema, Arpit, and Jose Restrep. Low Seismic Damage Columns for Accelerated Bridge Construction. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, December 2020. http://dx.doi.org/10.55461/zisp3722.

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This report describes the design, construction, and shaking table response and computation simulation of a Low Seismic-Damage Bridge Bent built using Accelerated Bridge Construction methods. The proposed bent combines precast post-tensioned columns with precast foundation and bent cap to simplify off- and on-site construction burdens and minimize earthquake-induced damage and associated repair costs. Each column consists of reinforced concrete cast inside a cylindrical steel shell, which acts as the formwork, and the confining and shear reinforcement. The column steel shell is engineered to facilitate the formation of a rocking interface for concentrating the deformation demands in the columns, thereby reducing earthquake-induced damage. The precast foundation and bent cap have corrugated-metal-duct lined sockets, where the columns will be placed and grouted on-site to form the column–beam joints. Large inelastic deformation demands in the structure are concentrated at the column–beam interfaces, which are designed to accommodate these demands with minimal structural damage. Longitudinal post-tensioned high-strength steel threaded bars, designed to respond elastically, ensure re-centering behavior. Internal mild steel reinforcing bars, debonded from the concrete at the interfaces, provide energy dissipation and impact mitigation.
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Cox, Benjamin, Nolan Hoffman, and Thomas Carr. Evaluation of a prototype integrated pavement screed for screeding asphalt or concrete crater repairs. Engineer Research and Development Center (U.S.), September 2022. http://dx.doi.org/10.21079/11681/45406.

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Finishing, or screeding, the hot mix asphalt or rapid-setting concrete surface of a crater repair is important for rapid airfield damage recovery (RADR) since it determines the aircraft ride surface quality. The objective of RADR repairs is to expediently produce a flush repair, defined as ±0.75 in. of the surrounding pavement surface, with minimal logistical and personnel burden. Multiple screeds were previously evaluated; the most recent project proposed a prototype design of a telehandler-operated integrated screed for both small and large repairs using asphalt or concrete. This project’s objective was to finalize the prototype design and fabricate and test the prototype RADR screed. The prototype RADR screed was successful for small repairs (8.5×8.5 ft). Large repairs (30×30 ft) were generally successful with modest repair quality criteria (RQC) issues being the only notable deficiencies. Large concrete repair RQC issues were attributed to plastic formwork movement, and large asphalt repair RQC issues were attributed to compaction issues or improper roll-down factors. Methods to mitigate these factors were investigated but should be further evaluated. Overall, the RADR screed was successful from technical perspectives but, functionally, is 600-800 lb overweight. Weight reduction should be considered before entering production.
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Solanki, Pranshoo, Haiyan Xie, John Awaitey, and Tejaswi Reddy. State-of-the-Practice Review of Field-Curing Methods for Evaluating the Strength of Concrete Test Specimens. Illinois Center for Transportation, April 2023. http://dx.doi.org/10.36501/0197-9191/23-003.

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The American Association of State Highway and Transportation Officials (AASHTO) T 23 standard provides instructions for making and curing concrete test specimens in the field. However, further research is needed to compare the strength of the field-cured specimen with the strength of the actual in-place concrete item. The purpose of this research is to build an understanding of the current state of the practice for field-curing methods. Specifically, the research team conducted a literature review and questionnaire survey to identify the selection criteria and details of field-curing methods. The results of the literature data and survey outcomes indicate most transportation agencies use field-cured cylinders, followed by the maturity method, to decide when to open pavement to traffic or remove formwork or falsework. The most commonly used field method found among transportation agencies was curing the test specimens near (or on) the cast concrete in the same manner as the concrete item represented. The cylindrical specimens are mostly field cured in insulated boxes such as a cooler or under burlap/insulation near the concrete item. In contrast, beams are mostly field cured in a damp sandpit or under burlap/insulation near the concrete item. Other field-curing technologies used by agencies are match curing, SureCureTM cylinder-mold system, piezoelectric sensors, calorimetry, and penetration-resistance tests.
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Grant, Charles. Diaphragm Walls as Permanent Basement Walls in Regions of High Seismicity. Deep Foundations Institute, June 2018. http://dx.doi.org/10.37308/cpf-2012-slwl-1.

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Reinforced concrete structural slurry walls have been used in the United States since the early 1960s. The typical practice, and one that makes the economics of slurry walls particularly attractive, is to design the walls to act as both temporary excavation support and permanent basement walls. They often serve as multi-story basements and below grade parking for buildings, for tunnels, subway stations, and other buried structures. One of the early applications was for a foundation for a subway station in San Francisco, but for the most part they have been used more extensively in regions of low seismicity. The purpose of this report is to investigate the requirements for extension of this practice to more common use in regions of high seismicity. Structural slurry walls are concrete walls constructed below the ground surface. In slurry wall construction, a trench is excavated using a rectangular clamshell bucket or other specialized equipment. During excavation, the trench is held open by introduction of a bentonite or polymer slurry. Steel reinforcement, if required, is lowered into the slurry-filled trench, and concrete is subsequently deposited by tremie, displacing the slurry. The length of trench open at any one time is limited to a typical maximum of about 20 to 24 feet by excavation stability and concrete placement volume considerations. Each individual concrete placement is referred to as a “panel,” and vertical construction joints separate the panels. Temporary “end-stops” are used as formwork to control the geometry of the panel joints, and horizontal reinforcement is discontinuous at the joints. Structural slurry panels range from 1.5 to 5.0 feet thick, 7 to 24 feet long, and up to 300 feet deep. In the United States, panels that are 2.0 to 3.5 feet thick and depths of 40 to 150 feet are commonplace. Structural basement walls support earth pressures acting laterally against the wall, dead and live loads acting vertically, and in-plane shear and flexure from wind and earthquake loads. The design of permanent slurry walls in regions of low or moderate seismicity is often limited to providing the strength necessary to resist out-of-plane soil pressures and vertical dead and live loads from the superstructure and basement framing. Although these walls also transfer in-plane lateral forces from the superstructure into the soils, the walls are often not specifically designed for these in-plane forces because their inherent strength is usually much greater than the forces being transferred. If resistance to in-plane forces acting on a wall required an increase in vertical reinforcement at the ends of a wall segment, an increase in the cap beam strength, or an increase in the horizontal reinforcement for shear strength, the overall design and construction approach would not vary significantly from current practice. Structural slurry walls have been used to a limited extent for buildings designed for high seismic risk, but there is reluctance on the part of design engineers to use them more often because of concern for how to design these walls to resist in-plane lateral forces, lack of code provisions for reinforcement detailing, and damage that may occur at panel joints. For buildings designed for high seismic risk, such as those assigned to Seismic Design Categories (SDC) D, E, and F as defined in Minimum Design Loads for Buildings and Other Structures (ASCE/SEI 7-10), in-plane shear and flexural actions may likely require modifications of a structural slurry wall only designed for out-of-plane soil pressures and vertical live and dead loads. Design would need to address in-plane lateral forces acting on structural slurry walls and the interaction of the in-plane actions with the out-of-plane and vertical actions. These issues are discussed in this report, and approaches to design for high seismic risk are presented.
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Stay-In-Place (SIP) Formwork. Purdue University, 2007. http://dx.doi.org/10.5703/1288284315764.

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Two construction workers fatally crushed when cement formwork collapsed. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, September 2017. http://dx.doi.org/10.26616/nioshsface13ny080.

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DIRECT ANALYSIS METHOD IN SELF-CLIMBING FORMING AND WORKING PLATFORM. The Hong Kong Institute of Steel Construction, June 2024. http://dx.doi.org/10.18057/ijasc.2024.20.2.6.

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Due to the complex connection of components and significant initial defects in the formwork structure, the utilization of a direct analysis method to design the formwork structure can effectively address the shortcomings of traditional first-order linear design methods in formwork design standards. Taking a practical engineering project as an example, a direct analysis method for the construction of a SCP structure was proposed. Based on its design results, a comparative analysis with the traditional first-order linear design method was conducted to clarify the influence of considering initial defects and second-order effects on support reaction force, deformation, and stress ratio. This provided a reference basis for the design of SCP structures. Based on the results, cross-sectional optimization was carried out on the key components of the SCP structure. Following optimization, the stress ratio distribution of the structure was found to be more reasonable, and a 25.63% reduction in steel consumption was achieved, thus demonstrating the feasibility of the direct analysis method in the design and optimization of the SCP structure.
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Adelaide Project - 1963-June 1967 - Roof formwork being erected - 7 June 1965. Reserve Bank of Australia, March 2023. http://dx.doi.org/10.47688/rba_archives_pn-012139.

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Adelaide Project - 1963-June 1967 - Hoisting formwork for Mezzanine Floor - 3 December 1964. Reserve Bank of Australia, March 2023. http://dx.doi.org/10.47688/rba_archives_pn-011989.

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Melbourne Project - December 1961-September 1966 - Fabricating formwork - roof northern end - 13 July 1965. Reserve Bank of Australia, March 2023. http://dx.doi.org/10.47688/rba_archives_pn-011828.

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