考虑相邻建筑物碰撞的基础隔震结构的地震反应分析

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振动与冲击 ›› 2010, Vol. 29 ›› Issue (5) : 215-219.

论文

考虑相邻建筑物碰撞的基础隔震结构的地震反应分析

赵建伟1;邹立华2;方雷庆1

作者信息 +

Seismic Response Analysis of Base - isolated Structures Considering Pounding of Adjacent Buildings

Zhao Jianwei1;Zou Lihua2;Fang Leiqing1

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文章历史 +

摘要

基础隔震结构在强震作用下,隔震支座水平位移过大可能导致相邻建筑物发生碰撞。本文应用接触单元法的非线性Hertz-damp碰撞模型，推导了隔震结构考虑相邻建筑物碰撞的动力方程，研究了碰撞对隔震结构和非隔震结构的影响，并进行了参数分析。研究表明：碰撞对基础隔震结构的加速度反应有明显的放大效应，但隔震装置对上部结构仍然有一定的保护作用。

Abstract

In meizoseismal forces, the base-isolated building could be pounded with adjacent buildings, when the horizontal displacement of bearings is too large. A nonlinear Hertz-damp impact element of contact element approach in the form of spring and dashpot is used to model the adjacent building. The equations of motion for structural pounding system are set up and studied the influences of the impact on the isolated structure and non-isolated structure. Then it is carried out the analyses of parameters. The results show that the impact on the base-isolated structure of every-floor acceleration has an obviously magnifying effect. However, the superstructure of protection is still effective.

导出引用

赵建伟;邹立华;方雷庆. 考虑相邻建筑物碰撞的基础隔震结构的地震反应分析[J]. 振动与冲击, 2010, 29(5): 215-219

Zhao Jianwei;Zou Lihua;Fang Leiqing. Seismic Response Analysis of Base - isolated Structures Considering Pounding of Adjacent Buildings[J]. Journal of Vibration and Shock, 2010, 29(5): 215-219