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对一栋12层一户一开间一进深大开间短肢剪力墙结构的1/10比例模型,采用不同加速度峰值的3种地震波作为激励,进行了模拟地震振动台试验研究,得到了模型结构的自振频率及加速度和位移等反应结果,并对模型结构的开裂部位、裂缝发展和破坏状态进行了观察分析。试验结果表明:在多遇地震阶段,结构未发生明显破坏;在罕遇地震阶段,连梁首先发生开裂,其后部分墙体出现破坏,但结构的整体性能良好。采用有限元软件ABAQUS对该模型结构进行了弹塑性地震反应分析,分析结果与试验结果吻合较好。研究表明,大开间短肢剪力墙结构具有良好的抗震性能,适合在7度抗震设防地区推广使用。最后,对该结构体系的设计方法提出了若干建议。
For a 1/10 scale model of a 12-story single-to-one deep-bay short-leg shear wall structure with 12 floors, three kinds of seismic waves with different accelerations are used as stimuli to simulate the seismic shaking table test, and the model structure The natural frequency and the response of acceleration and displacement, etc., And the cracking structure, crack development and failure state of the model structure were observed and analyzed. The results show that there is no obvious damage to the structure in the event of frequent earthquakes. In the rare earthquakes, the first joint cracks, and then some of the wall is damaged, but the overall structure is good. The elasto-plastic seismic response of the model was analyzed by finite element software ABAQUS. The analytical results agree well with the experimental results. The research shows that the short-legged shear wall structure with large opening has good seismic performance and is suitable for popularization and application in the seismic fortification area of 7 degrees. Finally, some suggestions for the design method of the structural system are put forward.