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（1 蘭州理工大學(xué)土木工程學(xué)院，蘭州 730050； 2 甘肅土木工程科學(xué)研究院，蘭州 730020）
［摘要］介紹了體外交叉鋼筋加固框架節(jié)點(diǎn)的做法，并通過3個(gè)T形鋼筋混凝土框架節(jié)點(diǎn)試件的低周反復(fù)加載試驗(yàn)，對(duì)提出的加固做法進(jìn)行了檢驗(yàn)。試驗(yàn)研究結(jié)果表明：所采用的加固方法能夠有效增強(qiáng)節(jié)點(diǎn)核心區(qū)的抗剪性能，改變節(jié)點(diǎn)的剪切破壞模式；對(duì)于節(jié)點(diǎn)組合體滯回特性、延性性能以及承載力等抗震性能的改善效果比較明顯。
［關(guān)鍵詞］框架梁柱節(jié)點(diǎn)；反復(fù)荷載；加固；試驗(yàn)研究
Experimental study on frame beam-column joints strengthened with external crossed reinforcing steel
Zhu Yanpeng1, Li Ke1, Zheng Jianjun1，2, Yuan Ling1（1 College of Civil Engineering，Lanzhou University of Technology, Lanzhou 730050, China；2 Gansu Civil Engineering Research Institute, Lanzhou 730020, China）
Abstract:Reinforcement method of frame beam-column joints with external crossed reinforcing steel was introduced through 3 T-shape reinforced concrete joints subjected to cyclic loading, and the method had been verified. The result indicates that the new reinforcement method can improve anti-shearing performance of the core area effectively and change the shearing failure pattern of the joint. Otherwise, seismic performance, such as hysteretic property, ductility performance and bearing capacity of the joint, are improved obviously.
Keywords:frame beam-column joints; cyclic loading; reinforcement; experimental study
作者簡介：朱彥鵬，碩士，教授，博士生導(dǎo)師，Email：ny-like@163.com。
參考文獻(xiàn)
［1］馮世平，翁義軍，沈聚敏.周期反復(fù)荷載作用下鋼筋混凝土框架梁、柱節(jié)點(diǎn)的抗震性能［M］. 北京：清華大學(xué)出版社，1984.
［2］姚振綱，劉祖華. 建筑結(jié)構(gòu)試驗(yàn)［M］.上海：同濟(jì)大學(xué)出版社，1996.
［3］GB50010—2002 混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］.北京：中國建筑工業(yè)出版社，2002.