Parametrical Study in Non-Linear Numerical Analysis  of a Coupling Beam with Steel Truss Configuration  in Shear Wall System

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.

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Research Status on Seismic Performance of Steel-Concrete Composite Coupling Beam

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.671-674.1315 ◽

2013 ◽

Vol 671-674 ◽

pp. 1315-1318

Author(s):

Qing Xuan Shi ◽

Jian Bo Tian ◽

Kun Li ◽

Zhi Feng Guo

Keyword(s):

Influence Factors ◽

Shear Wall ◽

High Load ◽

Coupling Beam ◽

Coupling Beams ◽

Specific Calculation ◽

Coupled Shear Wall ◽

Energy Dissipation Capacity ◽

New Form ◽

Wall System

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.

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Seismic performance evaluation of coupled wall system with novel replaceable steel truss coupling beams

Advances in Structural Engineering ◽

10.1177/1369433218811530 ◽

2018 ◽

Vol 22 (6) ◽

pp. 1284-1296 ◽

Cited By ~ 3

Author(s):

Yong Li ◽

Ye Liu ◽

Shaoping Meng

Keyword(s):

Reinforced Concrete ◽

Seismic Response ◽

Time History ◽

Nonlinear Time History Analysis ◽

Coupling Beam ◽

Coupling Beams ◽

Coupled Wall ◽

Steel Truss ◽

Seismic Loadings ◽

Wall System

Coupled wall systems are often used in high-rise buildings in zone of high seismic risk to provide lateral resistance to earthquake loading. Once damaged, reinforced concrete coupling beams are costly and time-consuming to repair post-earthquake. To enhance the seismic resilience for coupled wall structures, a novel replaceable steel truss coupling beam is first introduced. The proposed replaceable steel truss coupling beam consists of chord members at the top and bottom, respectively, and two buckling-restrained energy dissipaters are employed in the diagonal direction. The energy dissipaters can yield first before the wall piers and dissipate large amounts of energy to protect the main structure under seismic loadings. In addition, the energy dissipaters can be easily installed and post-earthquake repaired through pin connection with the chord members. This article mainly focused on the numerical and theoretical analyses of the proposed replaceable steel truss coupling beam, and nonlinear analytical models were developed in PERFORM-3D. An 11-story prototype structure was designed per Chinese code. The seismic response of hybrid coupled wall system with replaceable steel truss coupling beams was evaluated using nonlinear time history analysis and compared with the response of reinforced concrete coupled wall system with reinforced concrete coupling beams under seismic loadings. Results show that the proposed replaceable steel truss coupling beam leads to a good seismic response with reduced interstory drifts of the systems and rotational demand in the beams and wall piers due to a large energy dissipation capacity and overstrength.

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Investigation on the Structural Behavior of Shear Walls with Steel Truss Coupling Beams under Seismic Loading

Advances in Materials Science and Engineering ◽

10.1155/2018/5602348 ◽

2018 ◽

Vol 2018 ◽

pp. 1-16 ◽

Cited By ~ 1

Author(s):

Zhiheng Deng ◽

Changchun Xu ◽

Qiang Hu ◽

Jian Zeng ◽

Ping Xiang

Keyword(s):

Cross Sections ◽

Design Method ◽

Three Dimensional ◽

Shear Walls ◽

Seismic Energy ◽

Shear Wall ◽

Coupling Beam ◽

Coupling Beams ◽

Steel Truss ◽

Seismic Behaviors

Based on existing experimental results, the finite element analyses were carried out on shear wall structures with steel truss coupling beams. This work studied the seismic behaviors and the working mechanism of the steel truss coupling beam at the ultimate state and put forward two parameters: the area ratio of web member to chord and the stiffness ratio of coupling beam to shear wall. The seismic optimum design method of the coupling beam was also proposed. Afterwards, a comparative analysis was implemented on the three-dimensional shear wall model with steel truss coupling beams designed by the proposed design method. The results show that the structures designed by the proposed method have excellent seismic behaviors, the steel truss coupling beams have enough stiffness to connect shear walls effectively, and its web members have appropriate cross sections to dissipate seismic energy.

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Analysis for Floor Slabs of Wall-Slab System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.838-841.551 ◽

2013 ◽

Vol 838-841 ◽

pp. 551-554

Author(s):

Li Ying Zhang ◽

Xiao Dong Yang ◽

Wen Pan

Keyword(s):

Outer Wall ◽

Shear Wall ◽

Lateral Force ◽

Vertical Force ◽

Coupling Beam ◽

Urgent Problem ◽

Optimal Thickness ◽

Floor Slabs ◽

Different Thickness ◽

Wall System

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.

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