混合梁接合部设计技术的发展

Development of Design Technique for Joint Parts of Hybrid Girder

斜拉桥或连续梁桥的主跨用钢梁、边跨用混凝土梁,在适当的位置将两者合理地连接在一起,性能上将大幅度得以提高,并且容易实现大跨度。而混合梁接合部设计是关键技术问题之一,为此介绍了接合部的构造形式、结构特性以及设计技术的新发展。

The application of steel girder to main span and concrete girders to side spans of a cable-stayed bridge or continuous girder bridge, and jointing of the two kinds of the girders in a reasonable way at their appropriate places will greatly improve the performance of the bridge and will easily realize long spans, and the design of joint parts of the girders is often one of the critical design techniques for the bridge. In this paper, the structural types and features of the joint parts and the latest development of the design technique for the parts are dealt with.