Experimental Study on Seismic Behavior of Full-Scale New Steel Truss Coupling Beams

2010 ◽  
Vol 163-167 ◽  
pp. 2041-2046 ◽  
Author(s):  
Qian Lin ◽  
Zhi Heng Deng ◽  
Guang Xian Tang
Keyword(s):  
Seismic Behavior ◽  
Full Scale ◽  
Material Strength ◽  
Coupling Beam ◽  
Coupling Beams ◽  
Steel Angle ◽  
Steel Truss ◽  
Angle Steel ◽  
Cyclic Loading Tests ◽  
Steel Coupling Beam

Steel truss coupling beam is a new type of steel coupling beam structure. To investigate seismic behavior of this coupling beam, low cyclic loading tests for four full-scale specimens of steel truss coupling beam are presented. The specimens are designed considering three factors which are T-stub steel, angle steel and material strength. The experimental data show that steel truss coupling beam has good ductility, and can consume a great quantity of earthquake energy. By enlarging the sections of cross abdominal trusses and chord members, bearing capacity and stiffness of the whole coupling beam are greatly increased.

The Seismic Behavior of Pseudo Strain-Hardening Cemetitious Composites Coupling Beams with Polyvinyl Alcohol Fiber

2013 ◽  
Vol 353-356 ◽  
pp. 2119-2122
Author(s):  
Wan Shin Park ◽  
Nam Yong Eom ◽  
Sun Woong Kim ◽  
Young Il Jang ◽  
Hyun Do Yun
Keyword(s):  
Strain Hardening ◽  
Seismic Behavior ◽  
Failure Modes ◽  
Shear Wall ◽  
Coupling Beam ◽  
Cementitious Composite ◽  
Coupling Beams ◽  
Coupled Shear Wall ◽  
Pseudo Strain Hardening ◽  
Steel Coupling Beam

This paper addresses the seismic behavior of pseudo strain hardening cementitious composite (PSH2C) coupling beams with different failure modes in hybrid coupled shear wall. Test variables included the ratio of steel coupling beam strength to beam-wall connection strength. The results show that Specimen PSH2C-SCF exhibits a better stable behavior in comparison with Specimens PSH2C-SBVRT and PSH2C-FCF.

scholarly journals Experimental Comparison Study on Cyclic Behavior of Coupled Shear Walls with Two-Level-Yielding Steel Coupling Beam and RC Coupling Beam

2018 ◽  
Author(s):  
Guoqiang LI ◽  
Mengde PANG ◽  
Feifei Sun ◽  
Liulian LI ◽  
Jianyun SUN
Keyword(s):  
Energy Dissipation ◽  
Lateral Displacement ◽  
Shear Walls ◽  
Shear Wall ◽  
Cyclic Behavior ◽  
Experimental Comparison ◽  
Coupling Beam ◽  
Coupling Beams ◽  
Coupled Shear Wall ◽  
Steel Coupling Beam

Coupled shear walls are widely used in high rise buildings, since they can not only provide efficient lateral stiffness but also behave outstanding energy dissipation ability especially for earthquake-resistance. Traditionally, the coupling beams are made of reinforced concrete, which are prone to shear failure due to low aspect ratio and greatly reduce the efficiency and ability of energy dissipation.  For overcoming the shortcoming of concrete reinforced coupling beams (RCB), an innovative steel coupling beams called two-level-yielding steel coupling beam (TYSCB) is invented to balance the demand of stiffness and energy dissipation for coupled shear walls. TYSCBs are made of two parallel steel beams with yielding at two different levels.  To verify and investigate the aseismic behaviour improvement of TYSCB-coupled shear walls, two 1/3 scale, 10-storey coupled shear wall specimens with TYSCB and RCB were tested under both gravity and lateral displacement reversals. These two specimens were designed with the same bearing capacity, thus to be easier to compare. The experimental TYSCB specimen demonstrated more robust cyclic performance. Both specimens reached 1% lateral drift, however, the TYSCB-coupled shear wall showed minimal strength degradation. Additionally, a larger amount of energy was dissipated during each test of the TYSCB specimen, compared with the RCB specimen. Based on the experimental results, design recommendations are provided.

Seismic behavior and strength capacity of steel coupling beam-to-SRC wall joints

2019 ◽  
Vol 201 ◽  
pp. 109820 ◽  
Author(s):  
Xiaodong Ji ◽  
Yuhao Cheng ◽  
Tongseng Leong ◽  
Yao Cui
Keyword(s):  
Seismic Behavior ◽  
Coupling Beam ◽  
Strength Capacity ◽  
Steel Coupling Beam

Nonlinear seismic response predictions of walls coupled with steel and concrete beams

1998 ◽  
Vol 25 (5) ◽  
pp. 803-818 ◽  
Author(s):  
Kent A Harries ◽  
Denis Mitchell ◽  
Richard G Redwood ◽  
William D Cook
Keyword(s):  
Reinforced Concrete ◽  
Nonlinear Dynamic ◽  
Steel Beams ◽  
Coupling Beam ◽  
Coupling Beams ◽  
Coupled Wall ◽  
Dynamic Analyses ◽  
Nonlinear Dynamic Analyses ◽  
Steel Coupling Beam ◽  
Steel Coupling Beams

The design and nonlinear dynamic analyses of four coupled wall prototype structures are presented. Two ductile partially coupled and two ductile coupled wall structures are considered, each having reinforced concrete and steel coupling beams. The design of each of the prototype structures was based on the provisions of the 1995 National Building Code of Canada. Nonlinear dynamic analyses of each structure, using four different scaled earthquake ground motions are presented and the results discussed. Comparisons of the responses of the structures with concrete and steel coupling beams are made, demonstrating the advantages of using steel beams to couple reinforced concrete walls.Key words: composite construction, coupled wall, diagonally reinforced concrete coupling beam, "flexure critical" steel coupling beam, seismic design, "shear critical" steel coupling beam.

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.

Seismic behavior of replaceable steel truss coupling beams with buckling restrained webs

2015 ◽  
Vol 104 ◽  
pp. 167-176 ◽  
Author(s):  
Xian Li ◽  
Heng-Lin Lv ◽  
Guang-Chang Zhang ◽  
Bei-Dou Ding
Keyword(s):  
Seismic Behavior ◽  
Coupling Beams ◽  
Steel Truss

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.

Stiffness and Energy Dissipation of Steel Coupling Beam Embedded in the PSH2C and Normal Concrete Shear Wall

2013 ◽  
Vol 351-352 ◽  
pp. 556-559
Author(s):  
Sun Woong Kim ◽  
Wan Shin Park ◽  
Nam Yong Eom ◽  
Hyun Do Yun ◽  
Young Il Jang
Keyword(s):  
High Stress ◽  
Shear Wall ◽  
Cement Composites ◽  
Coupling Beam ◽  
Lateral Loads ◽  
Coupling Beams ◽  
High Rise ◽  
Coupled Shear Wall ◽  
Steel Coupling Beam ◽  
Steel Coupling Beams

Hybrid coupled shear wall with steel coupling beams has often been used as load-resisting system of high-rise buildings under lateral loads. However, joint between steel beam and shear wall is under combined and high stress. Reinforcement details of the joint are very heavy. This study addresses the effect of shear wall cement composites type in hybrid wall system on the seismic performance of steel coupling beams embedded in shear wall. The main test variables were the failure mode of steel coupling beam and types of cement composites, such as PSH2C and concrete, for shear wall.

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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