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梁贯通式支撑钢结构节点耗能模拟等效构件法*
邹超1,王伟1,2
摘 要

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]提出一种适用于梁贯通式支撑钢结构的节点模拟方法——等效构件法,该方法可以近似模拟节点刚度和强度,同时不至于忽略节点的滞回耗能。阐述了等效构件法的概念、基本假设和参数确定,利用该方法进行梁贯通式节点往复加载试验及梁贯通式支撑钢结构拟静力足尺试验数值模拟。结果表明,等效构件法在模拟节点性能及整体结构抗侧刚度、承载力、滞回耗能等方面有良好的适用性。

[关键词]钢结构; 梁贯通; 等效节点; 数值模拟; 滞回耗能

中图分类号:TU391        文献标识码:A       文章编号:1002-848X(2015)02-0010-05

 

Equivalent component method for energy dissipation modelling of joint in steel

beamthrough braced structures

Zou Chao1, Wang Wei1,2

 (1 Department of Structural Engineering Tongji University Shanghai 200092 China;

2 State Key Laboratory for Disaster Reduction in Civil Engineering Tongji University, Shanghai 200092 China)

 

Abstract:A numerical simulation method called equivalent component method was proposed for connections of steel beamthrough braced structures, which can approximately simulate the rigidity and strength of the connection and take the  hysteretic  energy dissipation capacity of the connection  into consideration. The concept and basic assumptions of equivalent component method were explained, as well as the parameter determination. The method has been used to simulate the cyclic test of beamthrough connections and the fullscale quasistatic tests on steel beamthrough braced frames. Results show that the equivalent component method has a good applicability for simulating the  performance of connections and lateral stiffness, bearing capacity and hysteretic energy dissipation capacity of the structure.

Keywords:steel structure; beamthrough; equivalent connection; numerical simulation; hysteretic energy dissipation

*国家自然科学基金项目(51038008, 十二五国家科技支撑计划课题(2015BAL03B01)。

通讯作者:王伟,博士,研究员,Email: weiwang@tongji.edu.cn

 

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