墙趾可更换组合剪力墙抗震性能试验研究

为研究墙趾可更换组合剪力墙的抗震性能,设计并制作了2片带有可更换墙趾构件的波形钢板–混凝土组合剪力墙试件.采用拟静力试验和ABAQUS有限元软件模拟的方法,分析了内置波形钢板波纹方向对墙趾可更换组合剪力墙抗震性能的影响.试验结果表明:各试件墙趾构件先于主体构件破坏,且在达到极限位移角前其破坏主要集中于可更换墙趾构件;墙...

Experimental Research on Seismic Performance of Composite Shear Wall with Replaceable Wall Toe Member

To study the seismic performance of corrugated steel plate concrete-composite shear wall with replaceable component of wall toe, two shear wall specimens were designed and fabricated. The influence of different arrangement forms of corrugated webs on seismic performance of shear wall specimens was analyzed by quasi-static test and ABAQUS finite element software. The test result indicates that the wall toes of the specimen were destroyed before the main member, and the damage is mainly concentrated on the replaceable components before the ultimate drift ratio was reached. Compared with the horizontal corrugated steel plate concrete-composite shear wall, the lateral bearing capacity of the vertical corrugated steel plate concrete-composite shear wall has increased by 18.3%, the ductility coefficient increased by 28.69%, and the energy dissipation capacity increased by 3.3 times; The rate of bearing capacity degradation and stiffness degradation, the equivalent viscous damping coefficient and the stiffness degradation ratio are all lower, and the initial stiffness of the latter is slightly improved, which demonstrate that the vertical corrugated steel plate concrete-composite shear wall has better mechanical performance and seismic performance. By comparing the ABAQUS finite element model analysis with the test process, the failure mode is basically consistent with the test phenomenon, which indicates that the finite element model established in this article has certain reliability.