| 钢筋混凝土梁式桥承载能力的有限元简化算法 |
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| 引用本文： | 赵冬兵,张澎涛.钢筋混凝土梁式桥承载能力的有限元简化算法[J].中国市政工程,2006(3):82-85. |
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| 作者姓名： | 赵冬兵 张澎涛 |
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| 作者单位： | 1. 同济大学,桥梁工程系,上海,200092
2. 上海市市政工程研究院,上海,200031 |
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| 基金项目： | 国家留学基金委留学基金 |
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| 摘 要： | 常规钢筋混凝土有限元分析中,由于结构非线性的存在,计算收敛困难、计算时间过长。通过平截面计算假定,引入单元节点自由度的约束方程,提出了承载能力有限元计算的简化方法。通过与试验资料及常规有限元方法的对比,验证了简化计算方法的适用性和可靠性。最后,以实例介绍了该方法在桥梁评估中的应用。
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| 关 键 词： | 钢筋混凝土梁式桥 承载能力 有限元分析方法 |
| 文章编号： | 1004-4655（2006）03-0082-04 |
| 收稿时间： | 2005-10-11 |
| 修稿时间： | 2005年10月11 |
On Simplified Finite Element Analysis of RC Beam Bridge Bearing Capacity |
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| ZHAO Dong-bing,ZHANG Peng-tao.On Simplified Finite Element Analysis of RC Beam Bridge Bearing Capacity[J].China Municipal Engineering,2006(3):82-85. |
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| Authors: | ZHAO Dong-bing ZHANG Peng-tao |
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| Abstract: | Because of structural nonlinear in reinforced concrete structure, the computational convergence is difficult and the time is too long by traditional finite element method. Based on plane section computational assumption, the constraint equations of element nodes' degree are used and the simplified finite element method is proposed. The applicability and reliability of this method is verified by the test data and computational results from traditional finite element method. Some examples are given to show this method applied to the assessment of existing bridges. |
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| Keywords: | RC beam bridge bearing capacity finite element simplified method |
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