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车桥耦合振动缩尺模型试验的相似律研究

DOI: 10.3969/j.issn.1674-0696.2015.02.03, PP. 10-14

Keywords: 桥梁工程,相似律,车桥耦合系统,动力缩尺模型,bridgeengineering,similaritylaw,vehicle-bridgeinteractionsystem,dynamicscale-modeltest

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Abstract:

:?基于公路桥梁车桥耦合振动特性及结构动力模型试验相似理论,提出了车桥耦合振动缩尺模型试验相似关系。以某假设简支梁桥为原型,根据原型结构动力特性及相似比尺,计算了车辆与桥梁动力特性参数;对比分析了原型桥与模型桥的静、动态响应,校验所提出的车桥耦合振动缩尺模型相似律。结果表明:车桥耦合振动室内缩尺模型需同时满足弹性相似律及重力相似律。

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