10层双肢带连梁十字形RC短肢剪力墙地震响应分析

Seismic response analysis of a 10-storied bi-limbed RC cross-shaped short pier shear wall with coupled beam

以一榀10层双肢带连梁十字形钢筋混凝土短肢剪力墙结构弹塑性时程分析为研究背景,利用ANSYSl软件对结构进行了多种地震波作用下的弹塑性时程分析,研究结构在多种地震波作用下的层间侧移角、顶点位移、基底剪力等以及影响结构地震反应的因素。分析结果表明,设置阻尼器可以有效减小结构的地震反应,高层十字形钢筋混凝土短肢剪力墙满足"小震不坏,中震可修,大震不倒"的抗震设计要求,结构薄弱层为第5层,在工程实际设计时应注意,可以设加强层。

The elastoplastic analysis of a 10-storied cross-shaped short-pier RC shear wall with coupled-beam model was used as research background in this paper. Elastoplastic time history analysis of an actual example under various seismic excitations was done based on saftware ANSYS, which analyzed the story drift angle, top displacement, base shear etc. of the structure under various seismic excitations and the influence factors of the structure＇ s seismic response. The analysis results show that setting dampers in the structure could reduce the seismic response of the structure effectively, high-rise cross-shaped short-pier RC shear wall structure could satisfy the seismic resistance design requirement ＂no large earthquake＂, and the strengthening layer could be damage for small earthquake, repairable for medium earthquake, and no collapse for weak story of the structure is the fifth story, to which attention should be paid and a set in the actual enzineerin~ design process.