摘要
基于DAlembert原理,导出了两轴汽车模型的运动方程:考虑车辆与桥梁的位移协调条件及桥面不平整度,建立移动汽车荷载作用下车辆与桥梁整体系统的运动方程,并且给出了详细的公式,采用Wilson-θ求解,编制了计算程序。对简支梁桥在移动汽车荷载作用下的动力冲击效应进行了计算分析与现场试验研究,获得了有价值的结果。
Based on the D'Alembert theory,equations of motion for 2 axles vehicle model are derived.The equations of motion for the whole vehicle-bridge system under moving vehicle loading are established,and detailed formulas are presented,considering the vehicle-bridge displacement coordinates,and the road surface roughness.The equations are solved by using Wilson-θ method.Dynamic impact effects of moving vehicle on a simply supported bridge are investigated by numerical analysis and field measurements.Valuable results are obtained.
出处
《振动与冲击》
EI
CSCD
北大核心
2007年第6期125-128,共4页
Journal of Vibration and Shock
基金
中南林业科技大学引进人才启动项目(06Y027)
关键词
移动汽车荷载
简支梁桥
动力冲击效应
有限元法
桥梁动载试验
moving vehicle loading,simply-supported bridge,dynamic impact effects,finite element method,dynamic loading test for bridges
