Vibration and fatigue life analysis for wind-induced vibration of large span pipeline bridges under fluctuating wind load

被引：0
|
作者：
Gao, Jian [1 ]
Wang, De-Guo [1 ]
He, Ren-Yang [2 ]
Lin, Shu-Qing [2 ]
机构：
[1] Mechanical College, China University of Petroleum, Beijing 102249, China
[2] China Special Equipment Inspection and Research Institute, Beijing 100013, China
来源：
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2011年 / 42卷 / 03期
关键词：
Vibration analysis - Aerodynamic loads - Fatigue of materials - Wind stress - Vortex flow;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Vibration and fatigue life for wind-induced vibration of large span pipeline bridges were analyzed. Considering the pulse characteristic of wind speed, morison equation was used to deduce vortex-induced force, and the load was applied for dynamic analysis of bridge structures. The fatigue life of the pipe and wire rope was analyzed by Miner's theory. The results show that the fluctuating wind speed has the damping effect on vortex-induced vibration. Response peak value occurs when the wind speeds are 4.0, 8.0, 9.5 and 11.5 m/s. Vertical and transverse displacements are big separately in wind attack angle of 0° and 90°. With the increase of the wind speed, the fatigue life of pipeline reduces significantly.
引用
收藏
页码：780 / 784
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