Damping characteristics of friction damped braced frame and its effectiveness in the mega-sub controlled structure system

被引：0

作者：

连业达 ^{[1
]}

张洵安 ^{[1
]}

Sheldon Cherry ^{[2
]}

机构：

[1] College of Mechanics and Civil Engineering, Northwestern Polytechnic University

[2] Department of Civil Engineering, University of British Columbia, Vancouver, Canada

来源：

Earthquake Engineering and Engineering Vibration | 2007年 / 02期

关键词：

friction damped braces; mega-sub controlled structure; energy dissipation; vibration control; nonlinear dynamic system;

D O I：

暂无

中图分类号：

TU352.1 [耐震、隔震、防爆结构];

学科分类号：

081405 ;

摘要：

Based on energy dissipation and structural control principle, a new structural configuration, called the mega- sub controlled structure (MSCS) with friction damped braces (FDBs), is first presented. Meanwhile, to calculate the damping coefficient in the slipping state a new analytical method is proposed. The damping characteristics of one-storey friction damped braced frame (FDBF) are investigated, and the influence of the structural parameters on the energy dissipation and the practical engineering design are discussed. The nonlinear dynamic equations and the analytical model of the MSCS with FDBs are established. Three building structures with different structural configurations, which were designed with reference to the conventional mega-sub structures such as used in Tokyo City Hall, are comparatively investigated. The results illustrate that the structure presented in the paper has excellent dynamic properties and satisfactory control effectiveness.

引用

页码：171 / 181

页数：11