Analysis for Floor Slabs of Wall-Slab System

2013 ◽  
Vol 838-841 ◽  
pp. 551-554
Author(s):  
Li Ying Zhang ◽  
Xiao Dong Yang ◽  
Wen Pan

The structure of Wall-slab is composed of slab and shear wall, and only in the outer wall part are the shear wall connected by a coupling beam. The floor and shear wall can bear vertical force and horizontal lateral force together. While under the situation of irregular bearing form shear wall and irregular partition loads, tablet computing becomes an urgent problem. Aiming at this problem, the model which is one layer of floor of Wall system has been used for analysis through the Safe software. In the condition of different thickness of slabs, exploratory results can get about the slab deformations, stresses and reinforcement ratios. The paragraph provides the basis to determine the optimal thickness of plate.

2005 ◽  
Vol 61 (7) ◽  
pp. 912-941 ◽  
Author(s):  
Wan-Shin Park ◽  
Hyun-Do Yun ◽  
Sun-Kyoung Hwang ◽  
Byung-Chan Han ◽  
Il Seung Yang

2013 ◽  
Vol 351-352 ◽  
pp. 734-737
Author(s):  
Wan Shin Park ◽  
Young Soo Chun ◽  
Hyun Do Yun ◽  
Soo Yeon Seo ◽  
Jin Kyu Song ◽  
...  

This paper addresses the seismic behavior of coupling beams with headed reinforcing bars in coupled shear wall system. Test variable included the replacement ratios of headed reinforcing bars. The results show that Specimen HB 50 exhibits a better stable behavior in comparison with Specimens Specimen CON and Specimen HB 30. Test results showed that the amount of diagonal reinforcing bars in the coupling beam may be reduced when headed reinforcing bars are utilized.


2013 ◽  
Vol 671-674 ◽  
pp. 1315-1318
Author(s):  
Qing Xuan Shi ◽  
Jian Bo Tian ◽  
Kun Li ◽  
Zhi Feng Guo

Coupling beams of coupled shear wall system in seismic regions are required to have high load resisting capacity and excellent ductility and energy-dissipation capacity. To achieve this goal, the concept of steel-concrete composite coupling beam is proposed. The steel-concrete composite coupling beam is a new form and worthwhile to research and promote. Further, it is a new direction for the future development of the coupling beam. But there is a lack of specific calculation method and constructional measures in the current related codes. In this paper, the review of available literatures is made including the experimental study and influence factors of mechanical behavior. It works that have not yet been covered after summarizing each research methods and research contents, which will provide scientific reference material for the intensive research on steel-concrete composite coupling beam.


2021 ◽  
Vol 920 (1) ◽  
pp. 012033
Author(s):  
M F M Fisol ◽  
R A Samat ◽  
S A Bakar

Abstract Shear Plate Shear Wall (SPSW) is a lateral force resisting system that is usually used in high seismic regions. Opening can be accommodated by using coupled steel plate shear wall (CSPSW) where two or more SPSWs are placed adjacently and are connected by coupling beams. Maximum displacement, shear load capacity and energy dissipation are affected by the dimension of the coupling beams. The construction cost of the building can be reduced vastly by optimizing the size of the coupling beams where the capability of CSPSW to resist the earthquake is maximized. Thus, the objective of this study is to determine the behaviour of maximum displacement, shear load capacity and energy dissipation of the CSPSW when the width, depth and length of the coupling beams are varied. Fourteen CSPSW models were analysed by ABAQUS software, where the models were subjected to lateral cyclic loading as accordance to ATC24. Maximum displacement of the CSPSW was not affected by the dimensions of the coupling beams. Shear load capacity was increased as either the width or the depth of the coupling beam was increased, and achieved its maximum value when the length of the coupling beam was 1000 mm. The optimum width, depth and length of the coupling beam to maximize the energy dissipation of the CSPSW models were 200 mm, 1000 mm and 1000 mm, respectively.


Materials ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 182
Author(s):  
Ke Wang ◽  
Wenyuan Zhang ◽  
Yong Chen ◽  
Yukun Ding

Several experiments are conducted to investigate the seismic behavior of composite shear walls because of their advantages compared to traditional reinforced concrete (RC) walls. However, the numerical studies are limited due to the complexities for the steel and concrete behaviors and their interaction. This paper presents a numerical study of composite shear walls with stiffened steel plates and infilled concrete (CWSC) using ABAQUS. The mechanical mechanisms of the web plate and concrete are studied. FE models are used to conduct parametric analysis to study the law of parameters on the seismic behaviour. The finite element (FE) model shows good agreement with the test results, including the hysteresis curves, failure phenomenon, ultimate strength, initial stiffness, and ductility. The web plate and concrete are the main components to resist lateral force. The web plate is found to contribute between 55% and 85% of the lateral force of wall. The corner of web plate mainly resists the vertical force, and the rest of web plate resists shear force. The concrete is separated into several columns by stiffened plates, each of which is independent and resisted vertical force. The wall thickness, steel ratio, and shear span ratio have the greatest influence on ultimate bearing capacity and elastic stiffness. The shear span ratio and axial compression ratio have the greatest influence on ductility. The test and analytical results are used to propose formulas to evaluate the ultimate strength capacity and stiffness of the composite shear wall under cyclic loading. The formulas could well predict the ultimate strength capacity reported in the literature.


Neutron ◽  
2019 ◽  
Vol 18 (2) ◽  
pp. 28-41
Author(s):  
Agyanata Tua Munthe ◽  
Muklish Nalahuddin

An Earthquake is on of the natural phenomena that cannot be avoided or cannot be prevented by its appearance which is very difficult to accurately predict both from the time and place of its occurrence. Shear wall system is used to increase the sitffness of many multi-storey building, in this case building that have more than 20 floors. Building structures with shear wall as retaining element of lateral force generally have good performance during an earthquake. Coupling beam is an connecting beam betweem two shear walls, this beam makes a series of shear walls works as a system that is able to withstand earthquake force. Coupling beam also make the working structure rigid and absorbs energy due to the very high rigidity of the coupling beam with shear wall behaving link two free cantilevers. Coupling beam is considered to be able to transmit shear force from one wall to another so that it can withstand large structural deformation. Structure design material strenght for concrete  fc’ 35MPa ~ fc 55’MPA and rebar (D10 & D13) using fy 520MPa and fy 420MPa for diameter >16mm. While the regulations used are SNI 1726: 2012, SNI 1727: 2013, and SNI 2847: 2013. Structural loading is given according to loading rules which are then analyzed using ETABS 2016 software.


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