| 基于响应面法的钢拱桥可靠度分析 |
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| 引用本文： | 蒋正文,程培军,郭玉龙.基于响应面法的钢拱桥可靠度分析[J].山东商业职业技术学院学报,2011,11(2):79-82. |
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| 作者姓名： | 蒋正文 程培军 郭玉龙 |
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| 作者单位： | 广西大学土木建筑工程学院,广西,南宁,530004 |
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| 摘 要： | 大型复杂桥梁结构的极限状态函数都是隐式的非线性函数,采用传统的可靠性分析方法可能无法实现,但利用响应面有限元法可以很好地解决这类问题。利用响应面法对一下承式钢拱桥拱肋、主梁在正常使用极限状态下的轴向应力、竖向位移的可靠度进行了分析,并根据拟合出的各极限状态函数显式表达式得出了相应的可靠度指标,说明响应面有限元法是计算下承式钢拱桥构件可靠度的有效方法。
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| 关 键 词： | 响应面有限元法 下承式钢拱桥 可靠度分析 |
Analysis of Steel Arched Bridge Reliability Based on Response Surface Method |
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| JIANG Zheng-Wen,CHENG Pei-jun,GUO Yu-long.Analysis of Steel Arched Bridge Reliability Based on Response Surface Method[J].Journal of Shandong Institute of Commerce and Technology,2011,11(2):79-82. |
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| Authors: | JIANG Zheng-Wen CHENG Pei-jun GUO Yu-long |
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| Institution: | (Guangxi university,Nanning,Guangxi 530004,China) |
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| Abstract: | The large-scale complex bridge structure＇s limiting condition function is the implicit nonlinear function.It can not be realized by traditional reliability analysis method,but it can be easily solved by response surface finite element method.Using the response surface law,this thesis analyses bottom-road bridge steel arched bridge arch rib,king post＇s under normal use limiting condition axial stress,vertical displacement＇s reliability.According to the various limiting condition function explicit expression which fitted to obtain the corresponding reliability target,it proves that response surface finite element method is the efficacious device to calculate the bottom-road bridge steel arched bridge component reliability. |
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| Keywords: | response surface finite element method bottom-road bridge steel arched bridge reliability analysis |
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