基于车桥耦合分析和遗传算法的桥梁损伤识别方法

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【中图分类号】：U441.3 【文献标志码】：A 【文章编号】：1008-3197（2025）03-05-05

【DOI编码】：10.3969/j.issn.1008-3197.2025.03.002

BridgeDamage IdentificationMethod Based on Vehicle-bridge Interaction Analysis and Genetic Algorithm

HEXingwen’，LUO Xingcai1，XU Can1，ZHU Weizhi²

1.SchoolofIfrastructueEngieeing，alinUnversityofechnologyDalian16O，China;CogofCivilEnginrinad Architecture，DalianUniversity，Dalian116622，China）

【Abstract】：Basedontheself-developedvehiclebridgecoupling vibrationanalysis programand theimprovedadaptivegenetic algorithm，abridge structure damage identificationmethod using vehicle induced vibration response was developed.First，the possble damage modeof the structure was assumed，and then the vehicle induced vibrationresponse of the bridge under a certain damage mode was calculated by using the vehicle bridge coupling analysis program，and the calculated value was compared with the vibration response value under the real damage condition efficiently，soas to realize rapiddamage identification.Bysetting a varietyof different working conditions，the impact of various factors onthe eficiencyof bridge damage identification wasanalyzed， and the effectiveness of the method was verified.

【Key words】：damage identification；vehicle bridge coupling analysis；geneticalgorithm；vehicle induced vibrationresponse

在桥梁结构损伤识别的众多方法中，利用行车荷载下车桥耦合系统的动力响应进行损伤识别是一种高效便利的方法1，能够在不中断交通的条件下快速对桥梁健康状态进行评估。（剩余3756字）