| 退化钢筋混凝土桥梁概率耐久性评估方法 |
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| 引用本文： | 朱劲松,高嫦娥.退化钢筋混凝土桥梁概率耐久性评估方法[J].东南大学学报,2011,27(1):70-76. |
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| 作者姓名： | 朱劲松 高嫦娥 |
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| 作者单位： | 朱劲松,Zhu Jinsong(天津大学建筑工程学院,天津,300072;天津大学滨海土木工程结构与安全教育部重点实验室,天津,300072);高嫦娥,Gao Change(天津大学建筑工程学院,天津,300072) |
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| 基金项目： | The National Natural Science Foundation of China，the National High Technology Research and Development Program of China (863 Program)，Specialized Research Fund for the Doctoral Program of Higher Education |
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| 摘 要： | 提出了考虑时间、空间变异特性的退化钢筋混凝土桥梁耐久性概率评估的随机有限元方法.首先,通过考虑钢筋与混凝土之间时变的粘结滑移关系及腐蚀钢筋的应力应变关系,采用弥散裂纹方法对退化钢筋混凝土桥梁进行有限元分析.然后,提出了退化钢筋混凝土桥梁耐久性概率评估的随机有限元分析方法,基于文献及现场调查的数据,采用蒙特卡罗仿真方法对...
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| 关 键 词： | 随机有限元法 空间相关可靠度 时间相关可靠度 耐久性评估 混凝土碳化 钢筋锈蚀 |
Probabilistic durability assessment approach of deteriorating RC bridges |
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| Zhu Jinsong, Gao Change.Probabilistic durability assessment approach of deteriorating RC bridges[J].Journal of Southeast University(English Edition),2011,27(1):70-76. |
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| Authors: | Zhu Jinsong Gao Change |
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| Institution: | Zhu Jinsong1,2 Gao Change1(1School of Civil Engineering,Tianjin University,Tianjin 300072,China)(2 Key Laboratory of Coastal Civil Structure Safety of Ministry of Education,China) |
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| Abstract: | A stochastic finite element computational methodology for probabilistic durability assessment of deteriorating reinforced concrete(RC) bridges by considering the time-and space-dependent variabilities is presented.First,finite element analysis with a smeared cracking approach is implemented.The time-dependent bond-slip relationship between steel and concrete,and the stress-strain relationship of corroded steel bars are considered.Secondly,a stochastic finite element-based computational framework for reliabi... |
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| Keywords: | stochastic finite element method space-dependent reliability time-dependent reliability durability assessment concrete carbonation corrosion of rebars |
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