超高层剪力墙(短肢剪力墙)-筒体结构整体模型振动台试验研究

本文以一栋超高层住宅大厦为结构原型,采用模拟地震振动台试验方法,对复杂体型超高层剪力墙(短肢剪力墙)-简体结构的动力特性、地震反应规律和开裂破坏形式等问题进行了系统研究。结果表明:复杂体型结构具有显著的扭转振动反应,易造成结构上部平面弯折处出现集中开裂破坏;结构短肢剪力墙的开裂破坏主要有短肢剪力墙中上部水平开裂、底部水平开裂以及短肢剪力墙局部压碎三种形式。建议适当加强结构薄弱部位的整体性和抗侧抗扭刚度,确保复杂体型超高层剪力墙(短肢剪力墙)-简体结构满足抗震设防要求。

Shaking table experimental study of super-highrise building with shear wall (short limb shear wall)-tube structure system

In this paper, a 1/25 scale model of the shear wall(short limb shear wall)-tube building structure was designed and constructed from a complex super-highrise residential building, and a series of earthquake simulation tests were carried out on the shaking table with different waves and wave peak values to verify the earthquake resistance behavior of the structure. The test results indicated that the torsional dynamic responses of the complex model structure are quite large and numerous cracks have occurred concentrately in the transitional parts in plan of the top floors; the crack forms of the short limb shear walls are shown as horizontal cracks at the middle and upper height of building, bottom horizontal cracks and local crushes. At the end of this paper, some suggestions are given for engineering applications of complex super-highrise building with shear wall (short limb shear wall)-tube structure system.