| 型钢高强高性能混凝土框架节点非线性有限元分析 |
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| 引用本文： | 曾磊,许成祥,郑山锁,吕营.型钢高强高性能混凝土框架节点非线性有限元分析[J].工程抗震与加固改造,2010,32(2). |
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| 作者姓名： | 曾磊 许成祥 郑山锁 吕营 |
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| 作者单位： | 1. 长江大学城市建设学院,湖北荆州,434023
2. 西安建筑科技大学土木工程学院,陕西西安,710055 |
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| 基金项目： | 国家自然科学基金项目(50378080);;湖北省教育厅科研项目(Q20091208);;长江大学科研发展基金项目(20080204) |
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| 摘 要： | 为研究高强高性能混凝土框架节点的受力性能,考虑型钢与混凝土之间的粘结滑移进行了非线性有限元分析,考虑的影响因素为混凝土强度和柱轴压比,通过对比计算结果与试验结果验证了数值模拟的可行性。结果表明:轴压比能在一定程度上提高节点抗剪承载能力,但是降低了其延性;相同条件下混凝土强度高的节点延性性能较普通型钢混凝土节点的略差,但型钢的有力约束改善了其本身延性差所带来的脆性特征。
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| 关 键 词： | 型钢混凝土结构 高强高性能混凝土 框架节点 有限元 |
Nonlinear Finite Element Analysis on SRHSHPC Frame Joints |
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| Zeng Lei,Xu Cheng-xiang,Zheng Shan-suo,Lü Ying.Nonlinear Finite Element Analysis on SRHSHPC Frame Joints[J].Earthquake Resistant Engineering and Retrofitting,2010,32(2). |
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| Authors: | Zeng Lei Xu Cheng-xiang Zheng Shan-suo Lü Ying |
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| Affiliation: | 1.School of Urban Construction;Yangtze University;Jingzhou 434023;China;2.School of Civil Engineering;Xi'an University of Architecture and Technology;Xi'an 710055;China |
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| Abstract: | To understand mechanical characteristics of steel reinforced high strength and high performance(SRHSHPC) frame joints,the finite element(FE) analysis considering the interfacial bond-slip between steel and concrete is proposed in this research.Comparison between FE result and test result under different concrete strength grade and different axial load shows the accuracy of the proposed method.The result indicates that axial load can improve joints'shear capacity to some extent but joints'ductility is decrea... |
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| Keywords: | steel reinforced concrete structure high performance and high strength concrete frame joints finite element |
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