摘要
为研究桥梁在移动车辆荷载作用下的动力特性和承载能力,以某连续梁桥为计算实例,采用大型通用有限元软件ANSYS建立了质量-弹簧的车辆模型和桥梁结构的有限元模型,用时程分析法分析了车辆荷载作用下连续梁桥的动力响应特征,着重探讨了车辆刚度、车辆质量、行车速度等车辆荷载因素对连续梁桥动力响应的影响规律,并提出相应结论。
The dynamic characteristics and carrying capacity are studied based on a calculation example of some continuous girder bridge.The finite element model of mass-spring vehicle and bridge was built using the ANSYS software.The dynamic response characteristics of continuous girder bridge under vehicle loads were analyzed by time history method.The seismic response analysis was performed by employing response spectrum method.The effects of vehicle loads factors on dynamic response characteristics of continuous girder bridge were discussed.The results provide theoretical reference for the design of similar bridges.
出处
《交通科技》
2012年第5期31-33,共3页
Transportation Science & Technology
关键词
连续梁桥
车桥耦合
时程分析法
动力响应
continuous girder bridge
vehicle-bridge coupling
time history method
dynamic response
