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| 响应面方法及其在桥梁体系可靠度分析中的应用 | |
| 引用本文： | 李广慧,刘晨宇,托拉·欧尼弗里奥. 响应面方法及其在桥梁体系可靠度分析中的应用[J]. 郑州大学学报(工学版), 2004, 25(1): 16-21 |
| 作者姓名： | 李广慧 刘晨宇 托拉·欧尼弗里奥 |
| 作者单位： | 1. 郑州大学土木工程学院,河南,郑州,450002 2. 郑州大学建筑学院,河南,郑州,450002 3. 英国萨利大学工程学院,萨利,激尔福德,UK GU2 7XH |
| 摘 要： | 提出将响应面方法和非线性有限元分析结合起来对桥梁上部结构的体系可靠度进行分析的新方法.首先,在试验设计的基础上应用通用的非线性有限元分析程序对桥梁结构进行体系承载力极限分析,然后,利用响应面方法推求桥梁结构体系承载力的响应面,最后利用可靠度分析程序计算桥梁结构的体系可靠度指标和失效概率.通过对一单跨叠合桥梁进行算例分析,证明了所建议方法的有效性. |
| 关 键 词： | 响应面方法 桥梁结构 体系可靠度 非线性有限元分析 |
| 文章编号： | 1671-6833(2004)01-0016-06 |
| 修稿时间： | 2003-10-05 |
Response Surface Method and Its Application in System Reliability Analysis of Bridges |
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| LI Guang-hui,LIU Chen-yu,Toula Onoufriou. Response Surface Method and Its Application in System Reliability Analysis of Bridges[J]. Journal of Zhengzhou University: Eng Sci, 2004, 25(1): 16-21 | |
| Authors: | LI Guang-hui LIU Chen-yu Toula Onoufriou |
| Affiliation: | LI Guang-hui~1,LIU Chen-yu~2,Toula Onoufriou~3 |
| Abstract: | A new method aiming to incorporate the response surface method (RSM) into the computation of system reliability for composite bridges is proposed in this paper.Non-linear finite element analysis program is first used to analyze the ultimate capacity of bridge structure on the basis of experimental design,and then, response surface method is applied to obtain the response surface of system capacity of the bridge. At last, system reliability results are got with the aid of universal probability analysis program. The validity of proposed method has been examined through the computation of system reliability of a single-span composite bridge. |
| Keywords: | response surface method (RSM) bridge structure system reliability nonlinear FEA |
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