- 摘 要
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（1 天津市土木建筑結(jié)構(gòu)防護與加固重點實驗室， 天津 300384； 2 天津城建大學土木工程學院， 天津 300384)
［摘要］半墻填充、墻-框剛性連接易引起框架柱的短柱效應(yīng)，導致結(jié)構(gòu)破壞模式的改變，不利于結(jié)構(gòu)抗震。在填充墻框架結(jié)構(gòu)低周反復荷載試驗的基礎(chǔ)上，建立了非線性有限元模型，針對半墻填充框架結(jié)構(gòu)易引起短柱效應(yīng)的問題，進行了有限元計算以及墻-框連接方式對框架柱破壞形態(tài)的影響分析。分析結(jié)果表明：墻-框柔性連接不僅改善了結(jié)構(gòu)的抗震性能，減輕了填充墻破損程度，還減小了填充墻對框架柱的側(cè)向約束，有效避免了短柱效應(yīng)。
［關(guān)鍵詞］半墻填充； 框架結(jié)構(gòu)； 剛性連接； 柔性連接； 抗震性能； 短柱效應(yīng)
中圖分類號：TU317+.1, TU375-4文獻標識碼：A文章編號：1002-848X(2018)06-0035-05
Finite element analysis of flexible connection frame structure half-filled with masonry
Zhou Xiaojie1,2, Yang Chenghao1,2
(1 Tianjin Key Laboratory of Civil Buildings Protection and Reinforcement, Tianjin 300384， China; 2 School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China)
Abstract:Half-filled wall and wall-frame rigid connection could easily cause short column effect on frame columns, which will lead to the changes of structural damage pattern and go against to the structural seismic. Based on the low-cycle loading experiment of the filled wall-frame, nonlinear finite element models were established. To figure out the short column effect caused by the half-filled wall frame structure, finite element analysis and the influence of wall frame connection mode on the failure mode of the frame column were carried out. The tests and analysis results show that: wall-frame flexible connection could not only improve the seismic behavior of structure and reduce the damaged degree of infill wall, but also decrease lateral restraint of the infill wall to the frame and avoid short column effect effectively.
Keywords:half-filled wall; frame structure; rigid connection; flexible connection; seismic behavior; short column effect
*國家自然科學基金項目（51678389），天津市科技特派員項目（16JCTPJC54000，17JCTPJC51600）。
作者簡介：周曉潔，博士，副教授，Email: zhouxj88888@126.com。
