| 钢筋砼框架非线性分析的简化单元模式 |
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| 引用本文： | 徐伟良,吴德伦. 钢筋砼框架非线性分析的简化单元模式[J]. 建筑科学与工程学报, 1992, 0(4) |
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| 作者姓名： | 徐伟良 吴德伦 |
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| 作者单位： | 重庆建筑工程学院(徐伟良)，重庆建筑工程学院(吴德伦) |
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| 摘 要： | 介绍一种用于钢筋混凝土框架二阶弹塑性分析的简化单元模式。它考虑了轴力的二阶效应、横截面的塑化和塑性区长度等非线性因素的影响。利用杆件截面的弯矩—曲率关系,可以直接由弹性杆件的转角—位移方程建立单元的非线性刚度矩阵。经与试验结果比较,说明计算结果是正确的。
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| 关 键 词： | 简化单元 非线性 弹塑性 曲率 塑性铰 |
A Simplified Nonlinear Element Model for Reinforced Concrete Frames |
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| Xu Wciliang Wu Dclun. A Simplified Nonlinear Element Model for Reinforced Concrete Frames[J]. Journal of Architecture and Civil Engineering, 1992, 0(4) |
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| Authors: | Xu Wciliang Wu Dclun |
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| Affiliation: | Chongqing Institute of Arphitccturc and Engineering |
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| Abstract: | A simplified element model with consideration of the influences of the second -order effects, cross-section plastification and plastic zone length on the stiffness matrix is presented for second-order elasto-plastic analysis of R.C. frames . By using the moment-curvature relationships of the member section , the inelastic element stiffness matrix is derived directly from the slope-deflection equation of clastic member. The validity of the proposed clement model is checked up with the available experimental and analytical results and a satisfactory agreement is obtained. |
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| Keywords: | simplified element nonlinear elasto-plasticity curvature plastic hinge |
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