| 薄膜元理论在钢筋混凝土纯扭构件计算中的应用 |
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| 引用本文： | 闫肖武,张三柱. 薄膜元理论在钢筋混凝土纯扭构件计算中的应用[J]. 淮海工学院学报, 2003, 12(4): 63-66 |
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| 作者姓名： | 闫肖武 张三柱 |
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| 作者单位： | 淮海工学院土木工程系 江苏连云港222005(闫肖武)，淮海工学院土木工程系 江苏连云港222005(张三柱) |
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| 基金项目： | 淮海工学院自然科学科研课题 ( Z2 0 0 3 0 18) |
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| 摘 要： | 对薄膜元理论在受扭构件中的应用进行了探讨，以软化变角空间桁架理论为基础，考虑混凝土的“软化效应”，通过建立应力平衡方程、应变协调方程、本构关系方程，用反复迭代的数值分析方法，模拟构件受力的全过程。用此方法对纯扭构件作了全过程分析，对构件的破坏荷载和变形进行了计算，理论分析结果与试验结果吻合较好。
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| 关 键 词： | 薄膜元理论 钢筋混凝土 软化变角空间桁架模型 纯扭构件 |
| 文章编号： | 1008-3499(2003)04-0063-04 |
| 修稿时间： | 2003-03-31 |
The Application of Membrane-element Theory in the Calculation for Pure Torsion Member |
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| YAN Xiao-wu,ZHANG San-zhu. The Application of Membrane-element Theory in the Calculation for Pure Torsion Member[J]. Journal of Huaihai Institute of Technology:Natural Sciences Edition, 2003, 12(4): 63-66 |
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| Authors: | YAN Xiao-wu ZHANG San-zhu |
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| Abstract: | The application of membrane-element theory in the calculation for pure torsion member is studied in this paper on the basis of variable-angle space truss theory. Concrete softening is taken into account, the stress equilibrium equations, strain compatibility equations and constitutive laws equations for concrete and steel are established, and the whole-process of loaded member is simulated with iterative numerical analysis method. By this method, the whole-process analysis of pure-torsion members is done, and the capacity and deformation are calculated. It is shown that theoretical analysis conforms well to experimental results. |
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| Keywords: | variable-angle softened space truss theory membrane-element theory whole-process analysis |
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