| 混凝土连续梁桥使用期的时变体系可靠度计算 |
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| 引用本文： | 张建仁,龚文俊,刘扬. 混凝土连续梁桥使用期的时变体系可靠度计算[J]. 长沙理工大学学报(自然科学版), 2006, 3(3): 54-60 |
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| 作者姓名： | 张建仁 龚文俊 刘扬 |
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| 作者单位： | 长沙理工大学,桥梁与结构工程学院,湖南,长沙,410076 |
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| 摘 要： | 混凝土连续梁桥在使用期间的体系可靠度反映了其整体可靠性水平.由于桥梁在使用期间的抗力是随时间变化的,因此其体系可靠度也具有时变性.介绍并修正了桥梁抗力参数的时变模型和荷载模型,提出了混凝土连续梁桥时变体系可靠度计算方法,并结合一工程实例验证了该方法的可行性与有效性.
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| 关 键 词： | 连续梁桥 使用期 时变体系可靠度 |
| 文章编号： | 1672-9331（2006）03-0054-07 |
| 收稿时间： | 2006-08-17 |
| 修稿时间： | 2006-08-17 |
Calculation of time-dependent system reliability for continuous RC bridge during service life |
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| ZHANG Jian-ren,GONG Wen-jun,LIU Yang. Calculation of time-dependent system reliability for continuous RC bridge during service life[J]. Journal of Changsha University of Science and Technology(Natural Science), 2006, 3(3): 54-60 |
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| Authors: | ZHANG Jian-ren GONG Wen-jun LIU Yang |
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| Affiliation: | College of Bridge and Structure Engineering, Changsha University of Science and Technology, Changsha 410076, China |
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| Abstract: | The system reliability of a bridge during service life reflects its overall safety level.Because the resistance of a bridge is time-variant,its system reliability is time-dependent.In this paper,the time-variant models of parameters influencing resistance and the load model are introduced.The calculation method of system reliability for continuous RC bridge is suggested.A bridge example shows the efficiency of this proposed method. |
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| Keywords: | continuous RC bridge service life time-dependent systems reliability |
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