Seismic response analysis of the complex system consisting of a huge subway platform and the corresponding upper structure

被引：0

作者：

Yan, WM ^{[1
]}

He, HX ^{[1
]}

Wu, LB ^{[1
]}

Ji, JB ^{[1
]}

机构：

[1] Beijing Univ Technol, Beijing Lab Earthquake Engn & Struct Retrofit, Beijing 100022, Peoples R China

来源：

PROCEEDINGS OF THE EIGHTH INTERNATIONAL SYMPOSIUM ON STRUCTURAL ENGINEERING FOR YOUNG EXPERTS, VOLS 1 AND 2 | 2004年

关键词：

complex control system; base-isolated system; TMD system; seismic response;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, vibration control of a huge subway platform with upper structure subjected to seismic excitations is discussed through theoretic analysis. Based on characteristics of the complex system, the up and the subjacent part of the system along the control layer is simplified as a SDOF system, respectively. Thus the structure system is simplified as a two-degree (not considering the mass of control devices) or three-degree (considering the mass of control devices) vibration system. The mechanical model and the dynamic equations of the system are established and solved. Meanwhile, the association and the difference between the base-isolated system, the TMD system and such a control system are also discussed. The results show that the seismic response can be significantly reduced by choosing the stiffness and damping of the superstructure properly are variables.

引用

页码：402 / 407

页数：6