Experimental evaluation of the seismic performance of modular steel-braced frames

被引：203

作者：

Annan, C. D. ^{[1
]}

Youssef, M. A. ^{[1
]}

El Naggar, M. H. ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Civil & Environm Engn, London, ON N6A 5B9, Canada

来源：

ENGINEERING STRUCTURES | 2009年 / 31卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Modular steel braced frame; Experimental behavior; Hysteretic behavior; Strength; Stiffness; Energy dissipation; Analytical modeling; BRACING MEMBERS; OVERSTRENGTH; EARTHQUAKE; BUILDINGS; DESIGN;

D O I：

10.1016/j.engstruct.2009.02.024

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Several studies have shown that the lateral response of concentrically-braced frames is dominated by the inelastic behavior of the bracing members. However, the overall performance of the entire frame depends on the frame configuration including its connections. In this study, the hysteretic characteristics of modular steel-braced frames under reversed cyclic loading are evaluated. The design and construction of the test specimen accounted for the unique detailing requirements of these frames. A regular concentrically-braced frame with similar physical characteristics was also tested for comparison. Both test specimens consisted of a one-storey X-braced system with tubular brace cross-section. This paper describes the behavior characteristics and provides a detailed comparison of the two systems to assess the strength, stiffness inelastic force and deformation, and energy dissipation characteristics of the modular system. Ail analytical model capable of capturing the effect of the system's unique detailing requirements is proposed and validated using the test results. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1435 / 1446

页数：12

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