| 受酸性腐蚀的钢筋混凝土压弯结构非线性分析 |
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| 引用本文： | 胡琦,蒋军,葛炜,朱国元. 受酸性腐蚀的钢筋混凝土压弯结构非线性分析[J]. 哈尔滨工业大学学报, 2004, 36(12): 1729-1732 |
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| 作者姓名： | 胡琦 蒋军 葛炜 朱国元 |
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| 作者单位： | 浙江大学,建筑工程学院,浙江,杭州,310027;浙江大学,建筑工程学院,浙江,杭州,310027;浙江大学,建筑工程学院,浙江,杭州,310027;浙江大学,建筑工程学院,浙江,杭州,310027 |
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| 摘 要： | 从混凝土的腐蚀机理入手，给出了受酸性介质腐蚀后混凝土强度和弹性模量的表达式，建立了数学计算模型．采用有限元法将结构划分为空间杆单元，给出了非线性弹性问题的单元刚度矩阵表达式，以及如何求解此类非线性问题的迭代方法．通过对一个工程的计算分析与实际情况相比较，该方法较为适合受酸性介质腐蚀压弯结构的刚度变化和变形发展分析．
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| 关 键 词： | 钢筋混凝土结构 腐蚀 非线性分析 刚度矩阵 |
| 文章编号： | 0367-6234(2004)12-1729-04 |
| 修稿时间： | 2003-06-02 |
Nonlinear analysis of eccentrically loaded reinforced concrete structure eroded by acid |
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| HU Qi,JIANG Jun,GE Wei,ZHU Guo-yuan. Nonlinear analysis of eccentrically loaded reinforced concrete structure eroded by acid[J]. Journal of Harbin Institute of Technology, 2004, 36(12): 1729-1732 |
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| Authors: | HU Qi JIANG Jun GE Wei ZHU Guo-yuan |
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| Abstract: | One formula of the intensity and elastic modulus of corroded reinforced concrete structure based on analyzing the mechanism of eroded concrete is proposed to establish mathematics model, and one formula of nonlinear stiffness matrix is proposed assuming that the load should not be unloaded, then proposes using iterative method to resolve nonlinear problems. Comparing the calculated result and practical result, it is detected that this method is adapt to analyze Stiffness changing and distortion developing of eccentrically loaded Reinforced Concrete Structure Eroded by Acid. |
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| Keywords: | Reinforced Concrete Structure Erode Nonlinear Analysis Stiffness matrix |
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