体外预应力桥钢索锚固区空间应力仿真分析  

Simulation Analysis of Spatial Stress in Cable Anchorage Zone of Externally Prestressed Bridge

作　　者：席广恒[1] 陈啸[1] 刘斌[1] 王吉英[2] 

机构地区：[1]东北大学资源与土木工程学院,沈阳市110004 [2]辽宁省交通勘测设计院,沈阳市110004

出　　处：《公路》2007年第12期82-86,共5页Highway

基　　金：国家自然科学基金项目(50474017)

摘　　要：结合某高速公路体外预应力试验桥的设计,利用桥梁分析专业软件M IDA S/C iv il对该桥的钢索端部锚固区域进行了空间应力仿真分析,研究了关键区域的应力分布、受力特点。同时,基于分析结果,应用拉杆-压杆分析模型对该区域进行了相应的配筋设计,研究结论可供类似工程参考。On the basis of design of an expressway, the spatial stress simulation model stress distribution and mechanical properties of externally prestressed trial bridge located on certain of cable anchorage zone of the bridge is analyzed, the this key area are studied by bridge analysis software MIDAS/Civil, and the steels distributed for corresponding area are designed using strut-and-tie modle. The study results can provide the reference for similar projects.

关 键 词：体外预应力桥梁 锚固区 空间应力 仿真分析 拉杆一压杆模型 

分 类 号：U443.35[建筑科学—桥梁与隧道工程]