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Artykuły w czasopismach na temat „Concrete tower design”

Autor: Grafiati

Data publikacji: 29 lipca 2024

Data aktualizacji: 31 lipca 2025

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1

M, Ensari Yigit, Anil Ozdemir, Fethi Sermet, and Murat Pinarlik. "Analysis of Offshore Wind Turbine Towers with Different Designs by Finite Elements Method." International Journal of Advanced Research in Engineering 4, no. 3 (2018): 1. http://dx.doi.org/10.24178/ijare.2018.4.3.01.

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It is known that the use of renewable energy has an increasing trend in whole world. Wind energy is one of the renewable energy types, as well is among the cleanest and most economical energy sources. Nowadays, in order to provide much more energy from wind, turbine towers are being built higher and the turbine blades have begun to be manufactured longer. Due to these applications, tower and turbine weights are continuously increasing. For this reason, it is necessary to optimize the materials used as well as the dimensions of the turbine towers. In the present study, behavior of TLP floating

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Zhou, Yang, Ertong Hao, Yudong Ran, Hai Cao, Yane Li, and Jike Tan. "Shear Performance of Vertical Joints in Wind Turbine Concrete Towers with Different Interface Processes." Buildings 15, no. 2 (2025): 250. https://doi.org/10.3390/buildings15020250.

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As a weak part of the concrete tower in wind turbines, the insufficient shear capacity of vertical joints can cause the local shear failure of the tower, reduce the overall bearing capacity and stability of the tower, and lead to safety issues. At present, the splicing of tower vertical joints mainly uses epoxy resin filling and arc bolt connections. However, sometimes the concrete near the vertical joints is damaged due to compression after applying pretension to the arc bolts, which will affect the bearing capacity and stability of the entire tower structure. If other interface processes are

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3

Gong, Yikai, and Martin Noël. "Finite Element Model of Concrete-Filled, Fiber-Reinforced Polymer Tubes for Small-Scale Wind Turbine Towers." CivilEng 5, no. 1 (2024): 169–90. http://dx.doi.org/10.3390/civileng5010009.

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The finite element method was used to study the feasibility of concrete-filled, fiber-reinforced polymer tubes (CFFTs) for small-scale wind turbine towers in remote areas. Although CFFTs have been successfully employed for a variety of structural applications, their use for wind turbine towers is novel and has yet to be investigated in detail. The objective of the study was to identify, for the first time, the most important parameters for design and compare the behavior of CFFT towers versus conventional steel and concrete towers. The model was first validated using experimental results repor

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4

Shchedrolosiev, O., O. Uzlov, and K. Kyrychenko. "IMPROVING CONSTRUCTIVE AND TECHNOLOGICAL CONNECTING JOINTS OF REINFORCED CONCRETE PONTOON WITH A TRANSVERSE DIAPHRAGM AND A METAL TOWER IN A FLOATING COMPOSITE DOCK." Scientific Bulletin Kherson State Maritime Academy 1, no. 22 (2020): 142–52. http://dx.doi.org/10.33815/2313-4763.2020.1.22.142-152.

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The analysis of the known technical decisions in dock construction field, rationalizing production resources at composite docks construction is given. It is established that the available solutions do not specify the recommendations for lowering the metal content in the reinforced concrete pontoon of composite floating docks. As a result of the conducted research, the design of floating composite docks was improved by reducing sets in the reinforced concrete pontoon. The rationality of a pontoon design construction without installation of frames, floors, and beams under towers is substantiated

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Abdelrazaq, Ahmad K. "Design and construction of Merdeka 118 tower using high performance concrete: Pushing the boundaries of concrete technology for a megatall building." Revista Alconpat 15, no. 2 (2025): 175–87. https://doi.org/10.21041/ra.v15i2.808.

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This paper presents the structural engineering, construction innovations and key challenges in the design and construction of Malaysia’s next landmark. Merdeka 118 is a large-scale mixed development that includes a 118-storey-679.9m tall mega-tall tower, the second tallest tower in the world. The effective application of High Performance Concrete (HPC) up to C105 has significantly optimized the size of structural elements and improved the economics of the building by maximizing premium floor space. HPC up to C105 has been applied to the mega column and core walls to optimize the size of the el

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6

Gong, Cheng Lin, Hua Liu, and Jian Zhang. "Study on Dynamic Properties of the Intake Tower with Finite Element Method." Applied Mechanics and Materials 501-504 (January 2014): 1888–91. http://dx.doi.org/10.4028/www.scientific.net/amm.501-504.1888.

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Intake tower is a complex structure, which has complex boundary conditions and has complex loading situation. Intake tower is made up of reinforced concrete ,which is thin-wall hollow structure. It builds in the near the shore in the reservoir, its top bridge connects to the banks of the river, The tower is in the water and is under pressure, intake towers safety is very important under the action of earthquake. Based on the large finite element software ANSYS, the dynamic properties of the intake tower is studied, and the intake tower+ foundation is also studied. The research conclusions can

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7

Wen, Yang, and Fei Zhou. "Time-History Analysis of Seismic Response for the Concrete-Filled Steel Tubular Wind Turbine Tower Based on Finite Element Method." Advanced Materials Research 163-167 (December 2010): 2176–80. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.2176.

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In the article based on the geometric characteristics of the tower and force characteristics, the author designs the concrete-filled steel tube (CFST) 3 limbs column tower, and establishes finite element model of the tower. We carry on time history analysis of the concrete-filled steel tubular wind turbine tower based on finite element method when the earthquake wave is different. Under rare earthquake, the majority bars of the concrete-filled steel tube 3 limbs column tower are in the elastic stage, only a small number of bars in the top and the bottom are into the plastic phase. The post-sei

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8

Apcarian, Anabel, Gabriel Contreras, Juan Manuel Labriola, and Emmanuel Quiróz. "Comparison of Alternatives for Multi-MW Wind Turbine Towers in Northern Patagonia, Argentina." Buildings 14, no. 7 (2024): 2045. http://dx.doi.org/10.3390/buildings14072045.

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The Patagonian region of Argentina has great wind potential. In this geographical area of complex terrain, the local wind is influenced by the proximity of the Andes Mountain chain, and it is very intense and turbulent. The wind profiles, turbulence intensity, and average wind speeds at the site do not meet the recommended values in the standards. This issue could have a significant impact on the design loads for structures installed in the region. The objective of this work was to compare the behavior under extreme wind load on different types of towers for multi-MW wind turbines in situ. For

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9

Li, Bin, Qun Hui Zhang, and Chun Yan Gao. "Numerical Simulation on the Mechanical Performance of the Wind Generator Latticed Concrete-Filled Steel Tubular Tower." Applied Mechanics and Materials 578-579 (July 2014): 751–56. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.751.

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Nonlinear finite element parameters analysis on the lattice type steel pipe concrete wind turbine tower, it shows the entire process of load bearing, failure mode and ultimate bearing capacity, researches on the influence law of aspect ratio, form of tower webs, tower diameter to thickness ratio and web member stiffness to tower column stiffness ratio on the ultimate bearing capacity and tower failure mode. The finite element analysis results shows that the tower aspect ratio λ, the diameter-thickness ratio γ of tower columns and the increase of stiffness ratio β between web members and tower

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10

Belov, Vyacheslav, Evilina Galieva, and Roman Verkhovskiy. "Technical and economic assessment of the possibility of using a thermal and moisture protection screen to increase the resistance of the reinforced concrete cooling tower shell to operational conditions." BIO Web of Conferences 107 (2024): 06017. http://dx.doi.org/10.1051/bioconf/202410706017.

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During the operation of chimney-type evaporative cooling towers which are made of monolithic reinforced concrete, the shell is exposed to various aggressive environmental influences and the carried-away part of the recycled process water leading to its premature destruction. This article illustrates a method of protecting the shell tower of a reinforced concrete cooling tower from the aggressive effects of the operating environment using a thermal and moisture protection screen design – a ventilated curtain wall with a cladding of fiberglass sheets. By the finite element method, using the ANSY

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11

Akhoondan, Mersedeh, Brien Clark, Graham Bell, and Jay Pastor. "Cathodic Protection Retrofit for Aging Municipal Water Infrastructure." Materials Performance 58, no. 5 (2019): 22–27. https://doi.org/10.5006/mp2019_58_5-22.

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Reinforced concrete towers in a water reservoir contain equipment to control water. Interruption in the operation of these towers causes a huge disruption in the municipal water distribution system. Operation in an aggressive environment contributes to corrosion. This article presents a case study on a comprehensive condition assessment and corrosion mitigation of an aging forebay outlet tower. The tower showed significant corrosion above the operating water elevation. The methodology for condition assessment, an impressed current cathodic protection design, and the construction challenges enc

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12

Gain, Akash Asim. "Seismic Response Evaluation for Gate-Type Twin Tower Reinforced Concrete Frame Structure." International Journal for Research in Applied Science and Engineering Technology 12, no. 5 (2024): 5358–69. http://dx.doi.org/10.22214/ijraset.2024.62801.

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Abstract: As the population increases tremendously the horizontal space in urban areas are insufficient to construct a building so it is very essential to go for vertical construction. In this research The 11 storey gate type twin tower reinforced concrete frame building having the top three floors horizontally connected is analyzed by using finite element modeling software. By using linear static and dynamic analysis, the seismic responses are computed and compared for various models such as twin towers without any connection, twin towers with one-way connection, and a gate-type twin tower st

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13

Vamsi Krishna, B., P. Sudheer Kumar, Kurma Chandana, Shyamala Bhoomesh, and P. Venu Gopal. "Comparative Analysis & Design of RCC & Steel Preheater Tower Structure by Using STAAD. Pro." IOP Conference Series: Earth and Environmental Science 1130, no. 1 (2023): 012025. http://dx.doi.org/10.1088/1755-1315/1130/1/012025.

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Abstract A liquid material after water concrete is the most consuming material in the world, concrete is the most important construction material used extensively to construct buildings, dams, roads, etc. As we know that concrete is a composite material with cement, coarse & fine aggregates bonding together with water that gives hardness with time. As per the 2018 year statistics, India is the second largest producer of cement in the world with 460 million tonnes per year which is over 8% of the global installed capacity. Cement is the most important material in concrete, In India, at pres

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14

Tinker, John A. "Tower of America." PCI Journal 53, no. 6 (2008): 112–30. https://doi.org/10.15554/pcij53.6-05.

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Towering over the Hudson River waterfront in Jersey City, N.J., the 34-story Tower of America West won an ACI Innovative Design Award in 1998. This unique building is constructed almost entirely of precast concrete, including stacked interior bearing walls, hollow-core floor slabs, and stacked exterior architectural wall panels. Although construction was finished in 1997, it is still one of the tallest buildings with this type of structural system in the United States. This article presents some of the design and construction challenges that were overcome, as well as highlights of some of the

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15

Chen, Kesheng. "Overview of Research Progress on Innovative Approaches to Steel-concrete Joint Interfaces for Enhanced Performance in Cable-stayed Bridges." Advances in Research 25, no. 6 (2024): 289–96. https://doi.org/10.9734/air/2024/v25i61202.

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The steel cable-stayed bridge has the characteristics of light weight, high construction precision, easy assembly, good seismic performance and clear force of cable tower anchorage structure. The concrete tower or pile cap has the advantages of high rigidity, low cost and low maintenance cost. Steel-concrete hybrid bridge tower combines the advantages of steel bridge tower and concrete bridge tower, and has been adopted by more and more bridge structures. This paper mainly introduces the structural form of steel-concrete composite bridge tower, and supplements the application of steel-concrete

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16

Xiong, Zhi Hua, Yun Cheng Feng, Song Lin Song, and Jiang Bo Wang. "Optimization Design of Large Span Cable-Stayed Bridge in High Seismic Risk Zone." Applied Mechanics and Materials 353-356 (August 2013): 2015–19. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.2015.

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To ensure seismic safety of a large span cable-stayed bridge, two alternative pylon shapes and section types were studied. Nonlinear time history analysis was performed in the context. It is found that the A-shaped pylon is much stiffener than the H-shaped pylon in terms of deformation. The steel A-shaped pylon can significantly reduce the seismic demands of the key member including tower drift and moment. A ductile steel link between towers is proposed for the optimization of design in the paper. The A-shaped reinforced concrete tower with ductile steel link was proved to be a relatively bala

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17

Ma, Xin Wei, Sen Zeng, Chong Hai Dong, Zhi Yu, and Guan Qi Huang. "Design of Assembled Post-Tensioned Prestressed Reactive Powder Concrete Wind Turbine Tower." Advanced Materials Research 1055 (November 2014): 38–43. http://dx.doi.org/10.4028/www.scientific.net/amr.1055.38.

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This paper proposes a new type of assembled post-tensioned prestressed reactive powder concrete (RPC) turbine tower structure. It includes the structure design of 200kW wind turbine tower according to the specifications, calculation of loading combinations and internal force, checking calculation of bearing capacity, prestressed concrete design and calculation of reinforcement. Local stress applied on the structure is analyzed by the finite element software of ANSYS, and the calculation results show that the bearing capacity calculation of RPC tower satisfies the requirements, and it is econom

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18

Guang, Ming, Hong Sheng Li, and Hua Guo Yang. "New Technology of Installing the Attached Self-Climbing Tower Steel Gantry Cranes." Applied Mechanics and Materials 484-485 (January 2014): 245–53. http://dx.doi.org/10.4028/www.scientific.net/amm.484-485.245.

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The Liujiaxia Bridge is 536 m span steel truss stiffening Girder Bridge, tower with double-column steel concrete structure, which is the world's largest diameter, the largest steel plate thickness of concrete pylon. Sarasota manufactured using standard pipe segment, group fight scene segment piecewise hoisting tower segment perfusion within the micro-expansion concrete construction technology, tower maximum height of 61.5 meters. This paper describes a piecewise Sarasota steel installation, piecewise perfusion within the micro-expansion concrete tower new construction method - attached to a se

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19

Zhu, Chun Xia, Sheng Qing Gu, and Jiu Fu Jin. "Research on Design of Inner-Climbing Tower Crane Supporting System." Applied Mechanics and Materials 328 (June 2013): 338–42. http://dx.doi.org/10.4028/www.scientific.net/amm.328.338.

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Safety is essential for tower cranes in construction engineering, as the inner-climbing tower crane is widely used in the construction of high-rise structures, design safety, reliability and support system which can be turnover is an important prerequisite for protecting the safety of construction. By understanding the interrelationships between construction environment of Henglong Plaza Twin Towers in Shenyang city and ZSL2700 tower, the article will analyse the support system for the project. It mainly uses finite element analysis software ANSYS which can create mechanical status of modeling

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Xu, Yan, Zeng Zeng, Cunyu Cui, and Shijie Zeng. "Practical Design Method of Yielding Steel Dampers in Concrete Cable-Stayed Bridges." Applied Sciences 9, no. 14 (2019): 2857. http://dx.doi.org/10.3390/app9142857.

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Restrained transversal tower/pier–girder connections of cable-stayed bridges may lead to high seismic demands for tower columns when subject to earthquake excitations; however, free transversal tower/pier–girder connections may cause large relative displacement. Using an energy dissipation system can effectively control the bending moment of tower columns and the relative tower/pier-girder displacement simultaneously, but repeated time history analyses are needed to determine reasonable design parameters, such as yield strength. In order to improve design efficiency, a practical design method

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Zhang, Ming, and Heng Le Wang. "Construction Simulation and Construction Speed Analysis of Natural Draft Cooling Towers." Applied Mechanics and Materials 353-356 (August 2013): 3559–65. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.3559.

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Using the finite element code ABAQUS and taking account of the wind load reduction, this paper presents a set of construction simulation methods of concrete cooling towers. A natural draft cooling tower at Taishan nuclear power station in Guangdong province, China, under three speeds of construction is simulated. Displacement and stress distributions of the cooling tower in the different construction stages are obtained. Some interested parts of the cooling tower are analyzed in detail and the variations of displacements and stresses of these parts with the construction are concluded. A compar

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22

Ma, HongWang, and Ran Meng. "Optimization design of prestressed concrete wind-turbine tower." Science China Technological Sciences 57, no. 2 (2014): 414–22. http://dx.doi.org/10.1007/s11431-013-5442-8.

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Zhang, Ming, and Heng Le Wang. "Global and Local Stability Checking Method of Natural Draft Cooling Towers during Construction." Applied Mechanics and Materials 353-356 (August 2013): 3009–14. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.3009.

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Checking the global and local stability of cooling towers during construction is very important to construction safety and reasonable construction process. On the basis of existing researches and by combining the checking method of global and local stability of cooling towers in operation period given in the present design code, this paper presents a method with implementation steps to check the global and local stability of cooling towers during construction. The method is verified to be simple and effective by a cooling tower example. The example analysis indicates that the global stability

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Mamin, Aleksandr N., Kirill V. Avdeev, Vladimir V. Bobrov, Aleksandr V. Reutsu, and Aleksej B. Chaganov. "Strength characteristics of load-bearing reinforced concrete structures of the Ostankino television tower." E3S Web of Conferences 410 (2023): 02021. http://dx.doi.org/10.1051/e3sconf/202341002021.

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The article describes the design features of the Ostankino TV tower in Moscow. The main results of the earlier works of the load-bearing reinforced concrete structures of the TV tower column and foundations are presented in the article. The authors examined the internal and external surfaces of reinforced concrete structures of the entire height of the tower with selective defectoscopy and determined the actual strength of concrete by non-destructive methods. The figures of this work show the main structural reinforced concrete elements and a distribution graph of strength characteristics of t

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25

Zhang, Junfeng, Chaoqun Wang, Chunlin Liu, et al. "Multi-wave impedance modeling and transient characterization of lightning strikes on long-span transmission towers." Journal of Physics: Conference Series 2849, no. 1 (2024): 012082. http://dx.doi.org/10.1088/1742-6596/2849/1/012082.

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Abstract With the increase in crossing distance, the height of long-span transmission towers suitable for UHV transmission lines is also increasing. The ultra-high height and ultra-long span increase the probability of long-span sections being struck by lightning. Therefore, the lightning strike long-span transmission tower model and its transient characteristics analysis are particularly important for lightning protection. In this paper, considering the concrete structure of the main material members of the long-span transmission tower, a multi-wave impedance modeling method for the tower is

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Yao, Xie. "The Analysis of Wind Power Generation Tower Based on SSI Effect." Applied Mechanics and Materials 333-335 (July 2013): 1500–1503. http://dx.doi.org/10.4028/www.scientific.net/amm.333-335.1500.

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With the development of wind turbines trend of single machine but large capacity, and with the concrete wind-turbine tower has many advantages such as corrosion resistance, high stability, convenient manufacture in-site and lower maintenance cost, concrete tower will have more and more wide prospect. Application of large finite element software FINAL, the main research is the influence of SSI effect on wind power tower natural vibration frequency. We can know that SSI effect is very important for wind power tower natural vibration frequency. So we can not ignore the influence of the interactio

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Lin, Feng, and Qiheng Zhong. "Mitigation of Ground Vibration due to Collapse of a Large-Scale Cooling Tower with Novel Application of Materials as Cushions." Shock and Vibration 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/6809246.

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Ground vibration induced by the collapse of large-scale cooling towers in nuclear power plants (NPPs) has recently been realized as a potential secondary disaster to adjacent nuclear-related facilities with demands for vibration mitigation. The previous concept to design cooling towers and nuclear-related facilities operating in a containment as isolated components in NPPs is inappropriate in a limited site which is the cases for inland NPPs in China. This paper presents a numerical study on the mitigation of ground vibration in a “cooling tower-soil-containment” system via a novel application

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Yan, Yi Zhi, Chang Xin Xiong, Xiao Cheng Wen, and Wei Hong Li. "Structure Seismic Analysis on Intake Tower of Spillway Tunnel." Advanced Materials Research 1065-1069 (December 2014): 1427–32. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.1427.

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According to a intake tower of spillway tunnel established the intake tower structure—water—foundation 3-D finite element model for seismic analysis, by the response spectrum method in original design seismic parameters and new parameters of the project on horizontal and vertical dynamic response of the intake tower. The results shown that the structure of maximum dynamic stress concentration appeared near the junction of the tower with backfill concrete, where the weak parts of seismic, used the new seismic parameters calculated show greater damage on the tower, but couldn’t overturn, meet th

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LIU Jinlong, and LI Changhua. "A Design of Fabricated Concrete Foundation for Tower Crane." International Journal of Advancements in Computing Technology 5, no. 6 (2013): 934–44. http://dx.doi.org/10.4156/ijact.vol5.issue6.110.

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Lupi, Francesca, Hans Juergen Niemann, Claudio Borri, and Udo Peil. "Design of Solar Towers for Extreme Storm Conditions and for Vortex Excitation." Applied Mechanics and Materials 283 (January 2013): 35–39. http://dx.doi.org/10.4028/www.scientific.net/amm.283.35.

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The structure of Solar Updraft Towers is basically a circular cylinder, which may turn into a hyperboloid at lower levels in order apply benefits of shape strengthening. The height of the tower is up to 1.5 km and it is usually designed as a thin reinforced concrete shell. The wind action is the main natural hazard, which plays a decisive role for the feasibility of the technology. An extensive wind tunnel investigation has been recently performed at WiSt laboratory at Ruhr-University Bochum (Germany) and at Criaciv laboratory at University of Florence (Italy). The tests highlighted in no-effl

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Magomedov, Marsel A. "Efficient surface foundations for power lines." Journal «Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost» 11, no. 3 (2021): 440–45. http://dx.doi.org/10.21285/2227-2917-2021-3-440-445.

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Surface foundations help improve the mechanical performance of transmission towers. In this work, we examined and identified the most effective structures of surface foundations to be used as trans-mission towers. In the study, general scientific methods were used: comparison, analysis, observation, synthesis, generalisation, systematisation, modelling, as well as the graphical presentation of the re-sults obtained. In the course of the work, the most common structures of surface foundations were considered – lattice poles and concrete blocks. An efficient design of a surface foundation with a

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Abdelrheem, Abdelrahman E., Arafa El-Helloty, and Ahmed Ehab. "Integrated FEM, CFD, and BIM Approaches for Optimizing Pre-Stressed Concrete Wind Turbine Tower Design." Civil Engineering Journal 11, no. 2 (2025): 523–43. https://doi.org/10.28991/cej-2025-011-02-08.

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Today, all over the world, people are looking for sustainable energy with modern systems for the coming generations. Wind energy plays a crucial role in supplying electricity to modern systems worldwide. Onshore turbines are necessary to ensure efficient and economical operation of taller wind towers, which can reach up to 100 m. However, building taller turbine towers faces many challenges, such as complex cross-sectional design, multiple stresses, and high construction costs due to different variables. To combat these challenges, this article proposes an optimization design aimed at enhancin

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Wen, Yang. "The Study on Force Behavior of Concrete Filled Steel Tube Lattice Wind Turbine Tower with Three Limb Columns." Applied Mechanics and Materials 178-181 (May 2012): 179–83. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.179.

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This paper refers to currently the 1.5MW cone tube type wind-driven generator tower, design the model of the concrete-filled steel tube wind turbine tower with three limb columns, and research on the force performance, such as the change of internal force, the process of failure, hysteretic behavior, bearing capacity, ductility and energy dissipation capacity by the pseudo-static experiment on the scale model of wind turbine tower. The study shows that the P- hysteretic curve of lattice concrete-filled steel tube wind-driven generator tower with three limb columns is asymmetric, relatively ful

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Chen, Haoyuan, Yongan Wang, Hong Yin, et al. "Study of the Static Performance of Guyed Towers in High-Voltage Transmission Lines." Buildings 14, no. 12 (2024): 3960. https://doi.org/10.3390/buildings14123960.

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Guyed towers in high-voltage transmission lines consist of the tower body, guy wire system, and foundation. A well-designed guy wire system with optimized tension levels is essential to maintain the stability of the tower under wind loads and other external forces. In practical operation, to prevent excessive corrosion of the pinned metal components at the tower base, these connections are often encased in concrete, altering the base connection conditions and affecting the structural forces on the tower. This study develops a finite element analysis model based on two guyed tower structures fr

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Li, Shu Jin, Xiao Yu Xu, Wen Jie Lu, and Yi Gang Fu. "Non Shrinkage Self-Compacting Steel Box Concrete Application in a Landscape Tower." Advanced Materials Research 919-921 (April 2014): 164–68. http://dx.doi.org/10.4028/www.scientific.net/amr.919-921.164.

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According to the design and construction characteristics of steel box concrete girder of a large landscape tower, C40 grade non shrinkage self-compacting concrete meeting engineering requirements was produced. The fresh concrete workability, early age shrinkage are researched, construction technology and detection methods are discussed combined with the practical engineering of steel box concrete girder.

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Čajka, Radim. "Analysis of Prestressed Concrete Tower for Wind Turbine Generator." Advanced Materials Research 772 (September 2013): 622–29. http://dx.doi.org/10.4028/www.scientific.net/amr.772.622.

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In the paper is presented a parametric study on possibilities of designing and realizing a prestressed reinforced concrete tower for a wind turbine, WEG 400, as an alternative solution replacing a steel structure. WEG 400 is a generation of a double-blade wind turbine with the rotor diameter of 36.7 m. Key design criteria include extreme static/dynamic loads, cyclical loading and natural frequency. The supporting structure of the tower needs to be easy to dispose from prefabricated prestressed concrete elements.

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Zong, Xiang, and Xiang Wang. "Research on Thermodynamical Performance of Concrete with Excessive Fly Ash Added in the Pile Cap of Well Tower." Advanced Materials Research 243-249 (May 2011): 6087–92. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.6087.

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To meet the demand of high performance of mass concrete in a pile cap of well tower, excessive replacement of fly ash was applied to the mass concrete. Based on the theory of hydration heat of cement, several thermal parameters of mix proportion were analyzed and simulated test analyses and setting time test analyses were conducted in the laboratory. The results and data collected in the project locale both show that applying excessive replacement of fly ash reduces hydration heat of mass concrete in the pile cap of well tower, which extends setting time in mass concrete and avoids the cracks

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Oishi, Tsuguo, and Yasuo Inokuma. "Aesthetic Design of Odawara Port Bridge." Transportation Research Record: Journal of the Transportation Research Board 1549, no. 1 (1996): 108–13. http://dx.doi.org/10.1177/0361198196154900116.

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The Odawara Port Bridge is located at the mouth of Odawara Port. Selecting a bridge type that symbolized the entire project and blended well with the surrounding area was critical. To achieve this, an extra-dosed prestressed concrete box girder with a main span of 122 m was selected. Construction of this bridge type is the first in the world. Special characteristics of this bridge type are a lower tower height than that of a cable-stayed bridge, the use of a saddle at the top of the towers, and the incorporation of epoxy-coated strands for diagonal cables. The design of the various sections of

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Ramos Alderete, Pablo, Ana Isabel Santolaria Castellanos, and Felipe Samarán Saló. "Question and Symbol: Challenges for a Contemporary Bell Tower." Religions 16, no. 4 (2025): 405. https://doi.org/10.3390/rel16040405.

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Historically, bell towers have been religious and architectural symbols in the landscape that summoned the faithful to celebrations and fulfilled a crucial territorial significance task. This function was assumed by the towers of some universities. The real need of the University Francisco de Vitoria to build a bell tower for its new chapel and to be significant both for its campus and the city is the pretext to investigate the need for this element in the current context through an academic exercise with architecture students. Traditionally, the religious autority proposed a concrete celebrat

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Ojha, Bimal, Sabin Khatri, Prabin Pokharel, Rasique Jirel, Binay Jamarkattel, and Abhinesh Khatri. "Structural performance optimization of Reinforced concrete buildings with rooftop Telecommunication towers: A location-based analysis." Journal of Innovations in Engineering Education 7, no. 1 (2024): 131–37. https://doi.org/10.3126/jiee.v7i1.72513.

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This study evaluates the structural response of an RCC building in Parbat, Nepal, with a rooftop telecommunication tower positioned at various locations. In our case, a telecommunication tower is already located at a certain position in the building, and we are trying to evaluate the optimal position of telecommunication tower. The site lies in seismic Zone V as per IS 1893:2016 (Part 1), indicating very high seismic activity, and is subject to significant wind loads. This study examines the structural response of an RCC building with a rooftop telecommunication tower, using ETABS 18.1.1 and a

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Indriūnas, Saulius, Romualdas Kliukas, and Algirdas Juozapaitis. "Behavioral Analysis of a Mast with a Combined Prestressed Stayed Columns System and Core of a Spun Concrete Circular Cross-Section." Buildings 13, no. 9 (2023): 2175. http://dx.doi.org/10.3390/buildings13092175.

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Widely used telecommunication structures are usually of the tower or mast type. For medium and tall telecommunications structures, tower-type constructions become less efficient compared to mast-type structures. The goal of our article is to discover a new, efficient telecommunication structure. For relatively low heights, tower systems can be designed with a continuous cross-section, in most cases using reinforced concrete elements. Among them, efficient spun concrete elements, whose load-bearing capacity is higher than that of ordinary solid reinforced concrete elements due to the technologi

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Sun, Weiwei, Dina D’Ayala, Jinxing Fu, Wentao Gu, and Jun Feng. "Seismic vulnerability assessment of a high-rise molten-salt solar tower based on incremental dynamic analysis." E3S Web of Conferences 194 (2020): 01005. http://dx.doi.org/10.1051/e3sconf/202019401005.

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This paper investigates the seismic performance of a high-rise molten-salt solar tower by finite element modelling. The integrated and separated models for solar tower based on the concrete damage plastic model are validated by matching the behaviour of similar reinforced concrete chimney specimens. The modal analysis demonstrates the first four modes of the solar tower are translational vibration. Seismic simulations are developed through the incremental dynamic analysis. The most disadvantageous position of the tower is all concentrated in the opening section under multidirectional seismic e

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HLADYSHEV, Hennadii, Dmytro HLADYSHEV, and Roman ZHURAVLOV. "ESTIMATION OF VARIABILITY OF STEPS OF ARMATURE IN A MONOLITHIC REINFORCED CONCRETE COVER OF A TOWER INDUSTRIAL CONSTRUCTION." Building constructions. Theory and Practice, no. 9 (December 28, 2021): 45–53. http://dx.doi.org/10.32347/2522-4182.9.2021.45-53.

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The work considers one of the possible reasons for reducing the operational reliability of monolithic thin-walled load-bearing reinforced concrete structures of existing industrial structures in relation to their design solution. As this reason is considered the variability of distances between axes of cores of working inspectedarmature of such designs is quite common.Comparison of design solutions with the qualityof construction and installation work makes it possible to identify the influence of unaccounted factors in the design of monolithic thin-walled reinforced concrete structures, which

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Li, Jian Ping, Jie Ruan, Pin Tan, and Xian Jun Wang. "Simulation Analysis and Structure Optimization of Steel Structure Climbing Formwork with Material Properties Used in the Large Angle Leaning Bridge Tower." Applied Mechanics and Materials 540 (April 2014): 201–4. http://dx.doi.org/10.4028/www.scientific.net/amm.540.201.

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Steel structure climbing formwork has been widely used in bridge pier and bridge tower, etc. But the design of 30 degrees slope climbing formwork design is rarely involved. The climbing formwork which in the upper surface of leaning bridge tower is affected by concrete buoyancy and the downside is affected by concrete gravity .That cause insufficient stiffness,deformation of the template,non-uniform cross-section of the bridge and large angle deviation which have great harm to the bridge quality .This paper which combined the construction project of Huaibei Xiangwang Bridge establish the mode

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GAMA, P. V. C. N., and T. N. BITTENCOURT. "Economic viability of ultra high-performance fiber reinforced concrete in prestressed concrete wind towers to support a 5 MW turbine." Revista IBRACON de Estruturas e Materiais 10, no. 1 (2017): 1–14. http://dx.doi.org/10.1590/s1983-41952017000100002.

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Abstract The Ultra-High Performance Fiber-Reinforced Concrete is a material with remarkable mechanical properties and durability when compared to conventional and high performance concrete, which allows its use even without the reinforcement. This paper proposes the design of prestressed towers for a 5 MW turbine, through regulatory provisions and the limit states method, with UHPFRC and the concrete class C50, comparing the differences obtained in the design by parametric analysis, giving the advantages and disadvantages of using this new type of concrete. Important considerations, simplifica

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Spoth, Thomas, Dyab Khazem, and Gregory I. Orsolini. "New Carquinez Bridge, Northeast of San Francisco, California: Technological Design Advancements." Transportation Research Record: Journal of the Transportation Research Board 1740, no. 1 (2000): 40–48. http://dx.doi.org/10.3141/1740-06.

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The new Carquinez Strait Bridge, northeast of San Francisco, California, will be the first major suspension bridge to be constructed in the United States since the second Chesapeake Bay Bridge in Maryland in 1973. It will replace an existing steel cantilever truss bridge, built in 1927, that was found to be seismically inadequate. The new bridge consists of an orthotropic closed steel box girder superstructure, two main cables 512 mm (20 1/8 in.) in diameter, reinforced concrete towers, and gravity anchorages. The design has set a new standard in modern suspension bridge design in the United S

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Liang, Peng, Xiang Nan Wu, and Yue Xu. "Static and Dynamic Behaviours of Three-Tower Suspension Bridges and the Structure Selection of the Mid-Tower." Advanced Materials Research 163-167 (December 2010): 2343–49. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.2343.

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In order to discuss the mechanical behaviour differences between the two-tower and three-tower suspension bridges, based on the Taizhou Yangtze River Bridge, three dimensional space finite element models of two-tower, three-tower with concrete mid-tower and with steel mid-tower were constructed. Through the comprehensive analysis, main conclusions are got as follows: due to the mid-tower lack of effective restraint from side cable, compared with two-tower suspension bridges, three-tower suspension bridges have lower total stiffness and natural frequency, with larger deflection-to-span ratio of

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Madina, Bulatova, and L. N. Gumilyov. "Determination of the Most Effective Location of Environmental Hardenings in Concrete Cooling Tower Under Far-Source Seismic Using Linear Spectral Dynamic Analysis Results." Journal of Research in Science, Engineering and Technology 8, no. 1 (2020): 22–24. http://dx.doi.org/10.24200/jrset.vol8iss1pp22-24.

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The feeling of the need to build longer cooling towers increases with the development of the capacity of hydropower plants. So the engineers are trying to design leaner towers, with more buckling resistance using environmental hardening rings. Several studies have investigated the effect of wind strength on these structures, but the effect of seismic acceleration on these structures has been less studied. In this study, by investigating the results of linear spectral dynamic analysis, the optimum location of environmental hardening rings is determined under the influence of earthquake accelera

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Ju, Yan Zhong, Dong Xu Yu, and Wang Dehong. "A Study of the Partially Prestressed Tendons RPC Concrete Pole Connection Design." Applied Mechanics and Materials 166-169 (May 2012): 534–37. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.534.

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In order to study and solve the problem of connection on the part of the prestressed tendons RPC concrete pole engineering. Design connecting flange suitable for the existing part of the prestressed tendons RPC concrete pole developed by our group used the connection flange in Steel tower as the prototype.Through the ABAQUS software to establish the finite element model between the connection flange and part of the prestressed tendons RPC concrete pole, and carry out finite element analysis.Through the finite element analysis to get results whether the design of connecting flange can meet the

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Ba, Ling Zhen, Yi Bo Yang, Song Liang, et al. "Progress in Study of Concrete Pumping Construction Techniques in Super High-Rise Building." Key Engineering Materials 405-406 (January 2009): 110–16. http://dx.doi.org/10.4028/www.scientific.net/kem.405-406.110.

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To super high-rise building, concrete pumping construction is an inevitable choice. This paper introduces the application status and development trend of concrete pumping construction in the super high-rise projects at home and abroad, introduces high-rise pumping concrete from the selection of raw material, mix design, performance evaluation and so on, sums up technical specification of concrete pump and pumping concrete pipe-laying method, in order to provide reference for the high-rise concrete pumping construction in Guangzhou West Tower.

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