测试技术学报Issue(5)：391-395,5.DOI:10.3969/j.issn.1671-7449.2014.05.004
基于WIM数据的上海长江大桥钢箱梁的寿命评估
Life Evaluation of Box Girder of Shanghai Yangtze River Bridge Based on WIM Data
廖霞霞 1胡明敏 1徐昊1
作者信息
- 1. 南京航空航天大学航空宇航学院，江苏南京210016
- 折叠
摘要
Abstract
Evaluation of the box girder details of Shanghai Yangtze river can provide the basis for the bridge ’ s maintenance and repairment .The research result of “Fatigue stress spectrum study of the steel box girder of Shanghai Yangtze River Bridge ,based on the analysis of WIM data” was used to get all the details of the stress spectrum of steel box girder .Then according to BS 5400 the tenth part ,confirming S-N curve which can reflect the details quality of fatigue .Finally ,estimating the steel box girder’s life with the combination of the Miner fatigue cumulative damage rule .According to the result ,we can know that during the current oper-ating process ,the box girder details have small stress amplitude ,high cycles and small damage magnitude . These details will not bring about fatigue damage .During the current operation ,the structure will keep high safety performance and reliability .Determine the damage point and the size of the damage value is unique in this article .关键词
WIM数据/上海长江大桥/S-N曲线/钢箱梁/寿命评估Key words
WIM data/Shanghai Yangtze river bridge/S-N curve/steel box girder/life evaluation分类
交通工程引用本文复制引用
廖霞霞,胡明敏,徐昊..基于WIM数据的上海长江大桥钢箱梁的寿命评估[J].测试技术学报,2014,(5):391-395,5.
