哈尔滨工程大学学报Issue(3)：313-319,7.DOI:10.3969/j.issn.1006-7043.201301060
大件运输中简支梁桥的动力响应分析及监测
Dynamic response analysis and monitoring of a simply supported bridge in oversize transport
摘要
Abstract
A real-time monitoring of simply supported bridge dynamic responses and numerical simulation based on vehicle-bridge coupled vibration was carried out to study the dynamic responses of the bridge , taking the absorption tower transportation of CNPC as the background .The vibration equations of the vehicles were deduced based on generalized principles of virtual work .The vibration of vehicles and the bridge was coupled using the displacement coordinate equation , and was solved by ANSYS .The findings show that the calculation results are in accord with the measured ones .The vehicle-bridge coupling vibration effect is obvious and the impact factor is still larger during the oversize transport with low speed .The effect of speed on the impact coefficient is smaller than that of road roughness for small and medium span bridges .So treatment of the deck is an effective method to reduce the vehicle impact effect for small and medium span bridges .关键词
简支梁桥/大件运输/耦合振动/参数反演/实桥监测/冲击系数/动态响应Key words
simply supported bridge/oversize transport/coupled vibration/parametric inversion/monitoring/im-pact coefficient/dynamic response分类
交通工程引用本文复制引用
刘波,王有志,王涛,丛侃,徐永芝..大件运输中简支梁桥的动力响应分析及监测[J].哈尔滨工程大学学报,2014,(3):313-319,7.基金项目
国家自然科学基金资助项目（50779032）． （）
