| 综合考虑高温后RC柱失效路径的可靠性分析 |
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| 引用本文： | 白丽丽,王振清. 综合考虑高温后RC柱失效路径的可靠性分析[J]. 武汉理工大学学报(交通科学与工程版), 2009, 33(5): 868-871. DOI: 10.3963/j.issn.1006-2823.2009.05.014 |
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| 作者姓名： | 白丽丽 王振清 |
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| 作者单位： | 哈尔滨工程大学航天与建筑工程学院,哈尔滨,150001 |
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| 基金项目： | 高等学校博士学科专项科研基金资助(批准号:20060217010) |
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| 摘 要： | 引入高温后混凝土和钢筋强度折减系数,建立4面受火后偏心受压柱的抗力模型和极限状态方程,利用蒙特卡罗法对高温后钢筋混凝土偏压柱综合考虑失效路径下的可靠性进行了数值模拟分析.综合考虑了单一失效路径和2种失效路径下受火后偏压柱的可靠性.结果表明,随着受火时间的增加,柱的可靠性指标逐渐变小;偏心距较小时,考虑2种失效路径下对受火后柱进行可靠性评估是不安全的;在偏心距较大时,考虑单一失效路径对受火后柱进行可靠性评估是不安全的,所以综合考虑高温后RC柱失效路径的可靠性比只考虑单一因素更符合真实情况.
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| 关 键 词： | 火灾 偏心受压柱 可靠性 失效路径 |
Reliability Analysis of RC Columns After High Temperature Under Comprehensive Considering Failure Paths |
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| Bai Lili,Wang Zhenqing. Reliability Analysis of RC Columns After High Temperature Under Comprehensive Considering Failure Paths[J]. journal of wuhan university of technology(transportation science&engineering), 2009, 33(5): 868-871. DOI: 10.3963/j.issn.1006-2823.2009.05.014 |
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| Authors: | Bai Lili Wang Zhenqing |
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| Affiliation: | College of Aerospace and Civil Engineering;Harbin Engineering University;Harbin;150001 |
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| Abstract: | Strength reduced coefficient of reinforcement and concrete were introduced,resistance model and limit state equation were established. Then Monte Carlo method was utilized to analyze the reliability of RC eccentric compression columns after high temperature under comprehensive considering failure paths. During the analytic process,the single failure path and two failure paths were considered comprehensively. Analysis results indicates that the reliability index will be decreased with the increase of fire du... |
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| Keywords: | Fire eccentric compression column reliability failure paths |
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