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钢筋砼框架非线性分析的简化单元模式
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(4).
作者姓名:徐伟良  吴德伦
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)
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。

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
Xu Wciliang,Wu Dclun.A Simplified Nonlinear Element Model for Reinforced Concrete Frames[J].Journal of Architecture and Civil Engineering,1992(4).
Authors:Xu Wciliang  Wu Dclun
Affiliation:Chongqing Institute of Arphitccturc and Engineering
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.
Keywords:simplified element  nonlinear  elasto-plasticity  curvature  plastic hinge
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