- 摘 要
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(1 同濟大學(xué)建筑工程系, 上海 200092; 2 同濟大學(xué)土木工程防災(zāi)國家重點實驗室, 上海 200092)
[摘要]提出一種適用于梁貫通式支撐鋼結(jié)構(gòu)的節(jié)點模擬方法——等效構(gòu)件法,該方法可以近似模擬節(jié)點剛度和強度,同時不至于忽略節(jié)點的滯回耗能。闡述了等效構(gòu)件法的概念、基本假設(shè)和參數(shù)確定,利用該方法進行梁貫通式節(jié)點往復(fù)加載試驗及梁貫通式支撐鋼結(jié)構(gòu)擬靜力足尺試驗數(shù)值模擬。結(jié)果表明,等效構(gòu)件法在模擬節(jié)點性能及整體結(jié)構(gòu)抗側(cè)剛度、承載力、滯回耗能等方面有良好的適用性。
[關(guān)鍵詞]鋼結(jié)構(gòu); 梁貫通; 等效節(jié)點; 數(shù)值模擬; 滯回耗能
中圖分類號:TU391 文獻標識碼:A 文章編號: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
*國家自然科學(xué)基金項目(51038008), 十二五國家科技支撐計劃課題(2015BAL03B01)。
通訊作者:王偉,博士,研究員,Email: weiwang@#edu.cn。
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