摘要
研究了高层建筑在多遇地震作用下设置隔震支座后的抗震性能。以北方某餐饮大楼为工程案例,采用SAP2000软件建立有限元模型,通过快速非线性分析方法以及动力弹塑性分析,对普通结构和隔震结构的层间位移响应、层间剪力以及倾覆弯矩进行了对比研究。结果表明通过设置隔震支座,该高层建筑的层间位移角都有明显的减小趋势,层间剪力和倾覆弯矩仅为非隔震结构的30%左右,隔震支座显著降低了结构在多遇地震作用下的反应。
This paper aims to study the anti-seismic performance of high-rise buildings after setting the seismic isolation bearings against the background of the frequent earthquakes. The finite element model of a dining building in northern China is established by SAP 2000, and seismic isolation bearings are arranged in a reasonable way in isolated structure. Under frequent earthquakes, the story drift, inter-laminar shear and overturning moment of isolated structure and non-isolated structure is carried out by using fast nonlinear analysis method and dynamic elasto-plastic analysis method. The result shows that, by setting the seismic isolation bearings, story drift of the high-rise building has significantly decreased, with inter-laminar shear and overturning moment only about 30% of non-isolated structure, reducing the entire structure under frequent earthquake response, reaching a good isolation effect.
出处
《湖北工业大学学报》
2016年第4期117-120,共4页
Journal of Hubei University of Technology
关键词
隔震支座
高层建筑
多遇地震
动力弹塑性分析
seismic isolation bearings
high-rise building
frequent earthquake
dynamic elasto-plastic analysis
