钢斜拉桥Z型外露式索梁锚固区受力特性分析  

Analysis on Mechanical Characteristic of Z-type Exposed Cable Girder Anchorage Zone of Steel Cable-stayed Bridge

作　　者：赵喻贤[1] 何畏[1] 鲁思宁 

机构地区：[1]西南交通大学土木工程学院,四川成都610031

出　　处：《城市道桥与防洪》2017年第3期91-96,共6页Urban Roads Bridges & Flood Control

摘　　要：以珠海市横琴新区在建桥梁——依依桥的前锚结构为研究对象,研究了Z型外露式索梁锚固结构的可视化设计方法、结构传力途径及主要构件的应力分布等关键问题。研究表明索梁锚固结构存在应力集中现象,但应力大小在相关规范限值内,能够满足钢梁斜拉桥的功能需要。作为一个特殊索梁锚固结构设计,也可供相关桥梁设计者参考。Taking the front anchor structure of Yiyi Bridge under the construction in Hengqin New Area of Zhuhai City as the study object, the article studies the visual design method of the Z-type exposed cable girder anchoring structure, the force transmission route of the structure and the stress distribution of the main structures. The study shows that the stress concentration phenomena exists in the cable girder anchoring structure, but the stress intensity is within the relative specification limits and can satisfy the function demand of steel girder cable-stayed bridge. The design of this special cable girder anchoring structure can be referred for the design of the similar bridges.

关 键 词：钢斜拉桥 索梁锚固 传力途径 可视化设计 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]