Dynamic Analysis of Prestressed Concrete Multi-span Continuous Urban Viaduct Beam Bridge under Moving Highway Vehicle Load
The interaction between the moving highway vehicle and the bridge results in complicated vibration of the highway vehicle and the viaduct bridge structure. Based on the vertical vibration analysis theory of the vehicle -bridge time-variant system, a finite element model of the highway vehi -cle and the prestressed concrete viaduct beam bridge was proposed. Where the highway vehicle was considered as a seven-freedomed muti-body system,the viaduct bridge was discretized as beam finite elements. With the irregular roughness of the deck as the vertical vibration source ,a vibration analysis program VSB-2 of the vehicle-bridge time-variant system of the prestressed concrete multi -span continous urban viaduct beam bridge under moving highway vehicle load was developed , and the vibration response and the vehicle running performance were calculated when the highway vehicle ran through the viaduct bridge at the designed speed under different operating conditions. The work could be a valuable reference for the shock -absorbing design and the engineering practice of the ur ban viaduct bridge.
Yan PENG Dejian LI Shuhui LI Chaofeng LIU
School of Civil Engineering , Central South University, Changsha 410075 , China
国际会议
5th International Symposium on Environmental Vibration(第五届环境振动国际研讨会)
成都
英文
485-493
2011-10-20（万方平台首次上网日期，不代表论文的发表时间）