期刊文献+

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
下载PDF
导出
摘要 通过对上海长江大桥细节寿命的估算为大桥的维护和修复提供依据.基于论文"基于WIM数据的上海长江大桥钢箱梁应力谱研究"的研究结果,得到钢箱梁各细节的应力谱,同时参考英国桥梁规范BS5400第十部分,确定了能够体现细节疲劳性能的S-N曲线,并结合Miner疲劳累积损伤准则,对大桥钢箱梁细节寿命进行评估.研究结果表明,在现行日常运营过程中,钢箱梁各细节应力幅值较小,循环次数多,损伤量级很小,故细节不会发生疲劳破坏,即结构在现行运营期间保持了很高的安全性和可靠度. 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 .
出处 《测试技术学报》 2014年第5期391-395,共5页 Journal of Test and Measurement Technology
关键词 WIM数据 上海长江大桥 S-N曲线 钢箱梁 寿命评估 WIM data Shanghai Yangtze river bridge S-N curve steel box girder life evaluation
  • 相关文献

参考文献11

  • 1英国标准BS5400.钢桥、混凝土桥及结合桥,第十篇[s].成都:西南交通大学出版社,1987.
  • 2任伟平.焊接钢桥结构细节疲劳行为分析及寿命评估[D].成都:西南交通大学,2004.
  • 3方义庆,胡明敏.基于疲劳寿命计的大型钢桥疲劳监测关键技术研究[D].南京:南京航空航天大学,2006.
  • 4陈常顺.平均剩余寿命置信下限的评估[J].中北大学学报(自然科学版),2007,28(3):208-211. 被引量:2
  • 5Helmerich R, Herter J, Brandes K. Full scale laboratory fatigue tests on riveted steel bridges[R]. Workshop Lausanne: LABSE, 1997.
  • 6Bruehwiler E, Smith I F C, Hirt M A. Fatigue and fracture of riveted bridge members[J ]. Journal of Scructural Engineer- ing, 1990, 116(1): 198-214.
  • 7Flint & Neill Partnership. Lantau fixed crossing and Ting Kau Bridge, wind and structural health monitoring criticality and- vulnerability ratings review[R]. Highways Department: Government of Hong Kong, 1998.
  • 8王永涛,胡明敏.基于WIM数据分析的上海长江大桥拉索疲劳应力谱研究[J].测试技术学报,2013,27(1):67-72. 被引量:2
  • 9陈惟珍,G.Albrecht,D.Kosteas.老钢桥剩余安全度与剩余寿命估计[J].同济大学学报(自然科学版),2001,29(4):384-389. 被引量:9
  • 10陈惟珍,王春生,徐磊.上海市外白渡桥剩余寿命与使用安全[J].桥梁建设,2002,32(2):6-10. 被引量:22

二级参考文献25

共引文献38

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部