Seismic Behavior of a Coupled-Wall System with HPFRCC Coupling Beams

2010 ◽  
Author(s):  
C. -C. Hung ◽  
S. El-Tawil
Keyword(s):  
Seismic Behavior ◽  
Coupling Beams ◽  
Coupled Wall ◽  
Wall System

Nonlinear modeling parameters of RC coupling beams in a coupled wall system

2014 ◽  
Vol 7 (5) ◽  
pp. 817-842 ◽  
Author(s):  
Seongwoo Gwon ◽  
Myoungsu Shin ◽  
Benjamin Pimentel ◽  
Deokjung Lee
Keyword(s):  
Nonlinear Modeling ◽  
Coupling Beams ◽  
Coupled Wall ◽  
Wall System

Hysteretic Behavior of Reinforced Concrete Coupling Beams with Diagonal Headed-Bars

2013 ◽  
Vol 351-352 ◽  
pp. 734-737
Author(s):  
Wan Shin Park ◽  
Young Soo Chun ◽  
Hyun Do Yun ◽  
Soo Yeon Seo ◽  
Jin Kyu Song ◽  
...  
Keyword(s):  
Seismic Behavior ◽  
Shear Wall ◽  
Hysteretic Behavior ◽  
Test Results ◽  
Coupling Beam ◽  
Reinforcing Bars ◽  
Coupling Beams ◽  
Coupled Shear Wall ◽  
Test Variable ◽  
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.

FEM Analysis on Seismic Behavior of Hybrid Coupled Wall System with Steel Boundary Elements

2012 ◽  
Vol 166-169 ◽  
pp. 98-103
Author(s):  
Yun Shi ◽  
Ming Zhou Su ◽  
An Liang Song
Keyword(s):  
Seismic Behavior ◽  
Plastic Hinge ◽  
Fem Analysis ◽  
Boundary Elements ◽  
Hysteretic Behavior ◽  
Steel Beams ◽  
Fem Model ◽  
Coupled Wall ◽  
3D Solid ◽  
Wall System

A nonlinear 3D solid model of hybrid coupled wall system with steel boundary elements has been founded by using FEM software ABAQUS to study its hysteretic behavior under cyclic loading, which considering the geometric large deformation and materials nonlinearity. To verify the efficiency of the model, two specimens with various coupling ratios of 30% and 45% are analyzed, and the results of analysis are compared with test ones. As the bearing capacities of both agree well in different loading stages, so the FEM model has enough accuracy and could be used to study the seismic behavior of hybrid coupled wall system with steel boundary elements. In addition, the results show that this new system dissipates energy by shear deformation of steel beams along and plastic hinge deformation at the bottom of wall, so it has better seismic performance.

Behavior and Design of Reinforced Concrete, Steel, and Steel-Concrete Coupling Beams

2000 ◽  
Vol 16 (4) ◽  
pp. 775-799 ◽  
Author(s):  
Kent A. Harries ◽  
Bingnian Gong ◽  
Bahram M. Shahrooz
Keyword(s):  
Reinforced Concrete ◽  
State Of The Art ◽  
Lateral Loads ◽  
Coupling Beams ◽  
Coupled Wall ◽  
Current State ◽  
Energy Absorbing ◽  
Coupled Wall Systems ◽  
Wall System ◽  
Critical Aspects

The efficiency of coupled wall systems to resist lateral loads is well known. In order for the desired behavior of the coupled wall system to be attained, the coupling beams must be sufficiently strong and stiff. The coupling beams, however, must also yield before the wall piers, behave in a ductile manner, and exhibit significant energy-absorbing characteristics. This paper reviews the current state of the art for the design of conventional reinforced concrete, diagonally reinforced concrete, steel, and composite steel-concrete coupling beams. Although not exhaustive, critical aspects of the design of these systems are presented.

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

2018 ◽  
Vol 22 (6) ◽  
pp. 1284-1296 ◽  
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.

Study on Seismic Performance of Connection of Hybrid Coupled Wall System

2012 ◽  
Vol 256-259 ◽  
pp. 737-741
Author(s):  
An Liang Song ◽  
Ming Zhou Su ◽  
Xu Dong Li ◽  
Yun Shi ◽  
Zhen Shan Wang
Keyword(s):  
Seismic Performance ◽  
Design Method ◽  
Coupling Beam ◽  
Coupling Beams ◽  
Coupled Wall ◽  
Coupled Walls ◽  
Seismic Design Method ◽  
Steel Coupling Beam ◽  
Wall System ◽  
Better Than

Based on the state-of-the-art of the research on connection of steel coupling beam to shear wall, The steel coupling beam has satisfactory seismic performance which is better than reinforced concrete coupling beams and composite coupling beams. In this paper, the existing research results were summarized and some views were put forward. It was useful to develop a seismic design method for hybrid coupled walls in China.

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