- 摘 要
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（1 華中科技大學(xué) 武漢 430070； 2 湖北工業(yè)大學(xué) 武漢 430068）
【提要】 輕骨料混凝土作為一種新發(fā)展的建筑材料，對其粘結(jié)機(jī)理還沒有達(dá)成共識?？朔炷林?br /> 鋼筋應(yīng)力測量的困難，通過鋼筋內(nèi)貼片粘結(jié)滑移試驗，測得了輕骨料混凝土中變形鋼筋加載端和自由端的相對位移、應(yīng)力沿錨固長度的分布規(guī)律，進(jìn)而得到了鋼筋粘結(jié)應(yīng)力分布規(guī)律。為輕骨料混凝土粘結(jié)機(jī)理研究及建立粘結(jié)本構(gòu)關(guān)系提供了必要的基礎(chǔ)。
【關(guān)鍵詞】 輕骨料混凝土 粘結(jié) 滑移
Test on Bond Stress Distribution of Deformed Reinforcement in Lightweight Aggregate Reinforcement Concrete/Chen Yueshun1,2， Zeng Sanhai2， Dong Fuzhi2, Li Xianzhi2(1 School of Civil Engineering & Mechanics, Huazhong University of Science and Technology,Ｗu(yù)han 430070,Ｃhina;2 School of Civil Engineering & Architecture, Hubei Univ
ersity of Technology,Ｗu(yù)han 430068,China)
Abstract:Lightweight concrete is a developing constructional materials,and its bond stres
s mechanism needs more theoretic study.Difficulties on reinforcement's stress me
asure is overcome by placing the strain gauge in the reinforcement bar, and the distribution of the bond stress and relative slip along the anchorage length of reinforcement bar is calculated based on the test results. It offers the theoretic base for the lightweight concrete bond mechanics and the construction of bond stress model.
Keywords:lightweight concrete; bond stress; slip
