铁道标准设计2016，Vol.60Issue(6)：117-120,4.DOI:10.13238/j.issn.1004-2954.2016.06.024
H型钢接触网支柱在风荷载作用下的疲劳性能分析
Fatigue Behavior Analysis of H-section Steel Pole of OCS under Wind Load
摘要
Abstract
H-section steel pole of OCS ( overhead contact system) is widely used in high-speed railway. Under long wind load, Fatigue failure of the pole may happen. A numerical model is established and analysis of hot spot stress of weld’s fatigue behavior of the pole under wind load is conducted based on surface extrapolation method. The H-section steel pole of OCS used in Lanzhou-Urumqi high-speed rail is introduced to calculate the fatigue life of pole weld under wind load. The results show that the location of hot spot stress remains unchanged and fatigue life increases by 23% with the increment of the section of the pole, but decreases by 21% with the increment of the pole height.关键词
接触网/H型钢支柱/柱脚焊缝/风荷载/热点应力/疲劳寿命Key words
OCS/H-section steel pole/Pole base weld/Wind load/Hot spot stress/Fatigue life分类
交通工程引用本文复制引用
张晨阳,芦燕..H型钢接触网支柱在风荷载作用下的疲劳性能分析[J].铁道标准设计,2016,60(6):117-120,4.基金项目
国家自然科学基金面上项目(51178307) （51178307）
