| 预应力混凝土空间框架节点二维拟静力试验研究 |
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| 引用本文： | 李旭红,房贞政,陈浩德.预应力混凝土空间框架节点二维拟静力试验研究[J].地震工程与工程振动,2009,29(1). |
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| 作者姓名： | 李旭红 房贞政 陈浩德 |
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| 作者单位： | 福州大学,土木工程学院,福建,福州,350002 |
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| 基金项目： | 福建省科技厅F5项目(2007F5072) |
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| 摘 要： | 采用拟静力试验方法对预应力混凝土和普通钢筋混凝土空间框架内节点进行了不同轴压比下单、双向循环加载的试验研究，得到不同加载方式下试件的滞回曲线。分析了各个试件的破坏形式、承载力、刚度、延性及耗能能力，通过比较和对滞回曲线的分析得出：双向水平荷载作用对构件耦合作用明显，构件存在扭转效应，构件的强度退化和刚度退化比单向荷载作用严重，节点的耗能能力降低。
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| 关 键 词： | 预应力混凝土空间框架内节点 二维拟静力试验 刚度 滞回曲线 骨架曲线 |
Experimental study on two-dimensional loading quasi-static of prestressed concrete spatial frame joint |
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| LI Xuhong,FANG Zhenzheng,CHEN Haode.Experimental study on two-dimensional loading quasi-static of prestressed concrete spatial frame joint[J].Earthquake Engineering and Engineering Vibration,2009,29(1). |
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| Authors: | LI Xuhong FANG Zhenzheng CHEN Haode |
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| Institution: | College of Civil Engineering;Fuzhou University;Fuzhou 350002;China |
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| Abstract: | Quasi-static experiments of prestressed concrete spatial frame joints and RC spatial frame joint are carried out under different axial compressions and uniaxial/biaxial cyclic lateral loading.The relationship between force and displacement is obtained with different loading approaches.Through the analyses of failure process,carrying capacity,stiffness,ductility and dissipating energy,it can be concluded that the coupling effect is obvious under biaxial lateral load,the torsional phenomenon exists in specime... |
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| Keywords: | prestressed concrete spatial frame joint multiple loading quasi-static test stiffness hysteretic curve skeleton curve |
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