大比例边跨连续梁桥钢-混凝土组合结构解决方案

The resolved project of the large scale side-span continuous girder bridge with steel-concrete composite box girders

以一座50 m+10×80 m连续-刚构组合梁桥为背景,探讨了钢-混凝土组合结构设计,解决大比例边跨连续梁桥设计问题。从受力上验证了钢-混凝土组合结构应用在大比例边跨的可行性,同时结合造价对比,得出该方案具有相当竞争力的有益结论。

Based on a continuous rigid frame compounding bridge,which is span arrangement of 50 m+10×80 m,this paper discussed design difficulties of the large scale side-span continuous girder bridge,which resolves by means of design a structure of steel-concrete composite box girders.First,the paper confirmed the feasibility by means of the steel-concrete composite box girders through the point of stress,and combined contrast of the cost,to makes a optimization design of closure order.