摘要
为分析车辆荷载作用下装配式钢桁架桥应力时变特性,建立了车辆荷载模型和钢桁架桥三维有限元模型,利用ANSYS仿真分析技术对钢桁架桥进行车辆荷载的通载加载,得到整桥的应力云图和各杆件最大应力的时程曲线;相同条件下,得到了多次通载下单元的最大应力时变规律,为钢桁架桥的承载力时变分析提供了一定的仿真依据。
In order to analyzing time-varyingstress properties of a prefabricated truss bridge under the influence of vehicle load,first we built a Vehicle load model and a 3-D finite model of the truss bridge. Using the ANSYS technology of simulation-analysis to loading vehicle load on the truss bridge,which provided stress cloud of the whole bridge and the maximum stress time-history curve of every pole;under the same condition,which provided time-vary law of the maximum stress based on multiple loading,which can provide simulation basis of time-varying bearing capacity for truss bridge.
出处
《装备制造技术》
2016年第12期21-23,共3页
Equipment Manufacturing Technology
关键词
钢桁架桥
车辆荷载
仿真
应力
时变
truss bridge
vehicle load
simulation
stress
time-varying