YIN Lidan,MA Ning.Experimental study on seismic performance of buckling restrained shear plate damper under the combined action of axial force and shear force[J].,2020,29(06):129-138.[doi:10.13577/j.jnd.2020.0613]





Experimental study on seismic performance of buckling restrained shear plate damper under the combined action of axial force and shear force
尹丽丹12 马宁12
1. 大连理工大学 土木工程学院, 辽宁 大连 116024;
2. 大连理工大学海岸与近海工程国家重点实验室, 辽宁 大连 116024
YIN Lidan12 MA Ning12
1. School of Civil Engineering, Dalian University of Technology, Dalian 116024, China;
2. The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
axial forcebuckling restrained shear panel dampershysteretic behaviorquasi-static testfinite element analysis
The shear steel plate damper is used as a good seismic energy dissipation device. However, the existing researches mainly focus on the situation of shear unidirectional force, and the research on the state of bidirectional force is still insufficient, such as the applications on underground structures and energy dissipation connected beams, and so on. Some researches show that ordinary shear plate dampers are prone to out-of-plane buckling easily, even more applying additional axial forces, the seismic performance is poor. To address this issue, an experimental study on the hysteretic behavior of buckling restrained shear plate dampers (BRSPDs) with flanges, is carried out under bidirectional loadings of shear force and axial force. In this paper, three groups of specimens are set up. To investigate the effect of axial force on the hysteretic performance of BRSPDs, they were subjected to horizontal reciprocating loading tests under different axial forces. In addition, a total of 7 specimens with different axial compression ratios were set up to perform finite element simulation analysis using ABAQUS. The results indicate that under the action of axial force, BRSPDs can effectively slow the external buckling of the web, and it is concluded that the maximum axial pressure ratio that this damper can work effectively is 0.6. When the axial pressure ratio is within 0.6, the damper shows a good energy dissipation performance and good ductility. However, when it exceeds 0.6, the ultimate bearing capacity, ductility and energy consumption of the dampers will be severely reduced. While the stiffness of the damper has almost no changes.


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更新日期/Last Update: 1900-01-01