| 钢筋混凝土剪力墙结构几何和材料双重非线性静力分析的伪动力有限元法 |
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| 引用本文： | 蔡松柏,沈蒲生,贺仲安,彭克明.钢筋混凝土剪力墙结构几何和材料双重非线性静力分析的伪动力有限元法[J].贵州大学学报(自然科学版),1997(3). |
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| 作者姓名： | 蔡松柏 沈蒲生 贺仲安 彭克明 |
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| 作者单位： | 湖南大学土木工程系!长沙，410082，湖南大学土木工程系!长沙，410082，长沙市园艺场建筑装饰工程公司，益阳市水利水电局 |
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| 摘 要： | 本文进一步发展了不需存贮结构刚度矩阵和求解非线性方程组的伪动力有限元法以应用于钢筋混凝土剪力墙结构的非线性静力分析，文中对钢筋混凝土材料采用Vecchio和Collins的非线性弹性抹平旋转裂缝模型，几何非线性采用Green应变公式计算，用平面应力三角形单元离散剪力墙结构，时间积分采用显示中心差分格式，数值计算表明，本文方法有效可靠．
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| 关 键 词： | 非线性 伪动力法 剪力墙 |
Pseudo-transient Finite Element Method for Geometric and Material Nonlinear Static Analysis of RC Shear Walls |
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| Cai Songbai, Shen Pusheng, Hou Zhongan, Pen Keming.Pseudo-transient Finite Element Method for Geometric and Material Nonlinear Static Analysis of RC Shear Walls[J].Journal of Guizhou University(Natural Science),1997(3). |
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| Authors: | Cai Songbai Shen Pusheng Hou Zhongan Pen Keming |
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| Abstract: | An improved pseudo - transient finite element method without the storing of the stiffness matrix of structures and the solving of the nonlinear equations is developed for the nonlinear static analysis of RC shear walls in this paper. A smeared rotating crack model by Vecchio and Collins is employed for the materials of RC shear walls. The geometric nonlinearity is taken into account by means of Green's strain formula. A finite element idealization with triangluar element is used for space discretization. An explicit central difference time-marching sheme is employed for time integration of the resulting discrete ordinary differential equation. Results of 2 numerical examples presented show that the method is of reliability and efficlency. |
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| Keywords: | Nonlinear Pseud-transient Shear walls |
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