| 求解钢筋混凝土平面梁单元刚度的改进算法 |
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| 引用本文： | 曾永革,曾昭东.求解钢筋混凝土平面梁单元刚度的改进算法[J].兰州理工大学学报,2010,36(1). |
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| 作者姓名： | 曾永革 曾昭东 |
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| 作者单位： | 1. 湖南省邵阳学院,城市建设系,湖南,邵阳,422000
2. 长沙理工大学,土木与建筑学院,湖南,长沙,410076 |
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| 基金项目： | 湖南省教育厅科研项目(09C891) |
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| 摘 要： | 提出一种在考虑材料非线性的有限元分析中根据荷载的大小求解相应单元刚度的改进算法.通过讨论Cranston方法求解钢筋混凝土平面梁单元刚度的原理和步骤,指出其在某些情况下可能出现迭代计算不收敛的局限性,提出采用加速搜索区间法和二分法相结合进行钢筋混凝土平面梁单元的求解.基于该方法编写考虑材料非线性的平面杆系有限元程序,并用算例进行验证.结果表明该方法具有良好的收敛效果,可以在Cranston方法失效时采用.
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| 关 键 词： | 材料非线性 单元刚度 加速搜索区间法 二分法 |
Improved method for calculating rigidity of reinforced concrete planar beam element |
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| ZENG Yong-ge,ZENG Zhao-dong.Improved method for calculating rigidity of reinforced concrete planar beam element[J].Journal of Lanzhou University of Technology,2010,36(1). |
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| Authors: | ZENG Yong-ge ZENG Zhao-dong |
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| Institution: | 1.Department of Urban Construction;Shaoyang University;Shaoyang 42200;China;2.Civil and Architectural School;Changsha University of Science and Technology;Changsha 410076;China |
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| Abstract: | An improved method was presented to resolve the corresponding element rigidity with finite element analysis for nonlinear material in terms of load magnitude on it.After discussing the principle and process of Cranston method for solution of reinforced concrete element rigidity,it was pointed out that Cranston method sometimes would have its limitation that the iterative computation might not converge.A solution method of accelerating interval search combined with dichotomy was put forward,and a finite elem... |
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| Keywords: | material nonlinearity element rigidity accelerating interval search method dichotomy |
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