| 自锚式悬索桥主梁挠度非线性随机静力分析 |
| |
| 引用本文： | 李生勇,张哲.自锚式悬索桥主梁挠度非线性随机静力分析[J].武汉理工大学学报(交通科学与工程版),2010,34(2):266-269. |
| |
| 作者姓名： | 李生勇 张哲 |
| |
| 作者单位： | 1. 福州大学土木工程学院,福州,350002
2. 大连理工大学桥梁与隧道工程研究所,大连,116023 |
| |
| 基金项目： | 福建省教育厅科技项目(批准号:JA08015);;福州大学博士后基金项目资助 |
| |
| 摘 要： | 采用响应面法对自锚式悬索桥主梁主跨中点挠度进行非线性随机静力分析,考察自锚式悬索桥主跨中点挠度随结构材料、几何尺寸及外荷载等不确定性因素的变异而发生变化的规律.有限元分析模型中考虑了主缆几何非线性及主梁P-Δ效应等的非线性行为.自锚式悬索桥结构主缆的面积、弹性模量以及主梁的面积的变异对主梁主跨中点挠度影响最为显著,在外部车辆荷载中不同车辆轴重的变异对主跨中点影响程度不尽相同.
|
| 关 键 词： | 自锚式悬索桥 挠度 非线性 随机静力分析 响应面法 |
Nonlinear Stochastic Static Analysis for the Deflection of Main Span Girder of a Self-anchored Suspension Bridge |
| |
| Li Shengyong,Zhang Zhe.Nonlinear Stochastic Static Analysis for the Deflection of Main Span Girder of a Self-anchored Suspension Bridge[J].journal of wuhan university of technology(transportation science&engineering),2010,34(2):266-269. |
| |
| Authors: | Li Shengyong Zhang Zhe |
| |
| Institution: | College of Civil Engineering/a>;Fuzhou University/a>;Fuzhou 350002/a>;China;Institute of Bridge Engineering/a>;Dalian University of Technology/a>;Dalian 116023/a>;China |
| |
| Abstract: | Nonlinear stochastic static analysis is carried out for the deflection of main span girder of a self-anchored suspension bridge by response surface method(RSM).The law of main span girder's deflection is researched with the variation of structural parameters such as material properties,geometric dimensions and external loads,ect.The response surface function does not contain the quadratic cross items.In the finite element(FE) model nonlinear mechanics behaviors of the structure are considered including main... |
| |
| Keywords: | self-anchored suspension bridges deflection nonlinear stochastic static analysis response surface method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
