| 钢筋混凝土受弯构件三面受火时非线性分析 |
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| 引用本文： | 查晓雄,钟善桐. 钢筋混凝土受弯构件三面受火时非线性分析[J]. 华中科技大学学报(自然科学版), 2002, 30(7): 92-94 |
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| 作者姓名： | 查晓雄 钟善桐 |
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| 作者单位： | 1. 华中科技大学土木工程及力学学院
2. 哈尔滨工业大学土木工程学院 |
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| 基金项目： | 教育部高校骨干教师资助计划项目基金资助项目，英国皇家协会基金资助项目 |
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| 摘 要： | 采用三维非线性有限元法对钢筋混凝土梁在受火时力学性能进行了描述，钢筋混凝土截面温度场的分布用简化数值法来进行计算，然后将其结果输入到有限元程序中进行时间－温度应力全过程分析。分析了各种参数对混凝土梁在受火时性能的影响。本方法能有效地预测混凝土梁在受火时的承载力及力学性能。
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| 关 键 词： | 三面受火 非线性分析 钢筋混凝土梁 受弯构件 耐火极限 温度场 承载力 |
| 文章编号： | 1671-4512(2002)07-0092-03 |
| 修稿时间： | 2001-12-31 |
Nonlinear analysis of fire resistance of RC bending members subjected to three-side fire |
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| Zha Xiaoxiong Zhong Shantong Assoc. Prof., College Civil Eng. , Mechanics,Huazhong Univ. of Sci. , Tech.,Wuhan ,China.. Nonlinear analysis of fire resistance of RC bending members subjected to three-side fire[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2002, 30(7): 92-94 |
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| Authors: | Zha Xiaoxiong Zhong Shantong Assoc. Prof. College Civil Eng. & Mechanics Huazhong Univ. of Sci. & Tech. Wuhan China. |
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| Affiliation: | Zha Xiaoxiong Zhong Shantong Assoc. Prof., College Civil Eng. & Mechanics,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | A three dimensional non linear element was presented to describe the behaviors of reinforced concrete beams subjected to fire. The temperature distribution in the section of concrete beam was calculated by the Hertz's simplified method. This distribution was input into the FE program for doing the time dependent thermal stress analysis. The influence of main parameters on the behavior of concrete members subjected to fire was analyzed. It was shown that the fire resistance and performance of concrete beams in fire could be predicted with the procedure. |
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| Keywords: | concrete bending member fire resistance nonlinear |
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