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桥梁在运营过程中,经常发生桥面铺装层破坏、剥落造成桥面板刚度发生变化。该文以一钢桁架桥为研究对象,通过有限元模拟分析在桥面刚度发生变化时,桥梁结构在车辆荷载激励下的随机响应。分析结果可为桥梁结构在桥面板刚度设计和加固维修方面提供一些建议。
During the operation of the bridge, bridge deck pavement damage often occurs and the stiffness of the deck slab changes due to spalling. Taking a steel truss bridge as the research object, this paper analyzes the random response of the bridge structure under the vehicle load excitation by the finite element simulation when the rigidity of the bridge deck changes. The results of the analysis can provide some suggestions for bridge structure design and reinforcement maintenance of bridge deck.