Estimation of fatigue life of long-span bridge by considering vehicle-bridge coupled vibration

被引：0
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作者：
School of Civil Engineering, Xuchang University, Xuchang [1 ]
Henan, China
机构：
来源：
Open Mech. Eng. J. | / 1卷 / 944-949期
关键词：
Fatigue of materials - Vibrations (mechanical) - Bridge decks - Fracture mechanics - Vehicles;
D O I：
10.2174/1874155X01509010944
中图分类号：
学科分类号：
摘要：
To estimate the fatigue life of long-span steel bridge more accurately, this paper proposes a method for estimating the fatigue life of long-span bridges by considering vehicle-bridge coupled vibration. Firstly, the universal equation of vehicle-bridge vibration is derived based on triaxial standard multi-scale model of fatigue vehicle and bridge, and relevant program for vehicle-bridge coupled vibration is programmed. Secondly, a method for estimating the fatigue life of long-span steel bridge is proposed based on fracture mechanics theories, and the analysis process is expounded in details. Finally, the method for estimating fatigue life proposed in this paper is verified by taking a double pylon cablestayed bridge with orthotropic steel bridge deck slab as an example. © Ling Jiao;.
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