New Fused Steel-Coupling Beam with Optimized Shear Panel Damper

2019 ◽  
Vol 17 (10) ◽  
pp. 1513-1526
Author(s):  
Davood Zarei ◽  
Abbas Ali Tasnimi
Keyword(s):  
Coupling Beam ◽  
Steel Coupling Beam ◽  
Shear Panel ◽  
Shear Panel Damper

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.

scholarly journals The Steel Coupling Beam-Wall Connections Strength

2006 ◽  
Vol 18 (1) ◽  
pp. 135-145
Author(s):  
Wan-Shin Park ◽  
Hyun-Do Yun
Keyword(s):  
Coupling Beam ◽  
Steel Coupling Beam

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

Development of a buckling restrained shear panel damper

2015 ◽  
Vol 106 ◽  
pp. 311-321 ◽  
Author(s):  
Kailai Deng ◽  
Peng Pan ◽  
Wei Li ◽  
Yantao Xue
Keyword(s):  
Shear Panel ◽  
Shear Panel Damper

Shear strength of the connection between a steel coupling beam and a reinforced concrete shear wall in a hybrid wall system

2005 ◽  
Vol 61 (7) ◽  
pp. 912-941 ◽  
Author(s):  
Wan-Shin Park ◽  
Hyun-Do Yun ◽  
Sun-Kyoung Hwang ◽  
Byung-Chan Han ◽  
Il Seung Yang
Keyword(s):  
Shear Strength ◽  
Reinforced Concrete ◽  
Shear Wall ◽  
Coupling Beam ◽  
Steel Coupling Beam ◽  
Wall System

Deformation Capacity of Steel Shear Panel Damper and its Reflection to AIJ Design Requirements

2016 ◽  
Vol 11 (1) ◽  
pp. 125-135 ◽  
Author(s):  
Hiroyuki Tamai ◽  
◽  
Kazuhiko Kasai ◽  
Keyword(s):  
Fatigue Life ◽  
Cyclic Loading ◽  
Low Cycle Fatigue ◽  
Thickness Ratio ◽  
Deformation Capacity ◽  
Shear Buckling ◽  
Loading Tests ◽  
Cyclic Loading Tests ◽  
Shear Panel ◽  
Shear Panel Damper

Shear panel dampers consisting of stiffeners and panels surrounded by four flanges are used as aseismic hysteretic dampers for buildings in Japan. Cracks can form easily in a shear panel damper when shear buckling occurs during the cyclic loading caused by a severe earthquake.For a relatively thin panel with a large width-to-thickness ratio, the damper’s plastic deformation capacity and the presence of shear buckling can be evaluated from the maximum deformation angle. However, when it is relatively small, very-low-cycle fatigue life for a relatively thick panel must be known to predict the usage limit of the damper, because the failure pattern changes when cracks form in the weld between the panels and flanges. Fatigue life relations for a thick shear panel damper with parameters of normalized width-to-thickness ratio and deformation angle are presented. A method for predicting the fatigue life under severe earthquake conditions is also presented. To validate the prediction expression, cyclic loading tests were performed on a shear panel damper and reviewed. The applicability of the method for predicting the fatigue life was confirmed through non-stationary cyclic loading tests. These results showed the validity and effectiveness of the expressions and the method.

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