摘要
通过调查研究发现，造成公路桥梁损伤最多的是车辆荷载。在车辆荷载作用下，桥梁将产生疲劳、振动、瞬态响应，动力效应等引起结构的损害，尤其对局部结构影响更大，造成主体结构的可靠度，严重时会影响到整体结构的正常使用。
Abstract
Through the investigation found that the cause of highway bridge damage is the largest vehicle load.Under the vehicle load, the bridge willproduce fatigue, vibration, transient response, dynamic effect caused by the damage of the structure, especially the
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