- 摘 要
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(1 同济大学建筑工程系, 上海 200092; 2 同济大学土木工程防灾国家重点实验室, 上海 200092)
[摘要]确立了分段正交扁钢支撑包括强度设计原则和变形设计原则在内的一般设计原则,保证该类支撑在地震作用下能满足“强连接、弱构件”的要求,具有良好的抗拉延性,且安装有该类支撑的结构体系能满足抗震变形验算要求。对分段正交扁钢支撑的细部构造以及各部件选用的钢材型号做了详细介绍,并给出了相应的构造要求。通过工程实例具体地说明了该类支撑的设计方法,且给出了对该类支撑的若干设计建议。
[关键词]钢结构; 分段正交支撑; 设计原则; 抗震设计; 强度; 延性
中图分类号:TU391 文献标识码:A 文章编号:1002-848X(2014)07-0084-05
Design principles of a segmented orthogonal flat steel brace
Xu Ting1, Chen Yiyi1,2
(1 Department of Building Engineering, Tongji University, Shanghai 200092, China; 2 State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)
Abstract: General design principles including strength design principles and deformation design principles were established for the segmented orthogonal flat steel brace to ensure that this kind of braces would satisfy the requirements of strong connection and weak member under the rare earthquake action with a good quality of ductility and that structure systems with braces could meet the requirements of seismic deformation check. A detailed introduction was made to detail construction of the brace and the types of steel used for various brace components, and the corresponding detailing requirements were given. The design procedures of the segmented orthogonal flat steel brace were illustrated concretely via a practical engineering project. Also several pieces of design advice were given.
Keywords: steel structure; segmented orthogonal brace; design principle; seismic design; strength; ductility
*国家自然科学基金项目(51038008)。
作者简介:徐婷,硕士研究生,Email: 13918422303@163.com。
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