邢台紫金大桥设计关键技术  

Key Technology of Structural Design for Xingtai Zijin Bridge

作　　者：孙虎平[1] 刘鹏[1] 宋丹[1] 任润田[1] 

机构地区：[1]西安市政设计研究院有限公司,710068

出　　处：《特种结构》2015年第5期32-36,共5页Special Structures

摘　　要：邢台紫金大桥为目前我国大跨径波形钢腹板与预应力混凝土组合箱梁桥之一,本文以此为背景,详细介绍了该类桥的结构构造特点;建立全桥三维空间有限元模型对结构整体受力及剪力滞效应进行了静力分析,对波形钢腹板的稳定性、钢腹板与混凝土顶底板结合部受力进行局部分析,同时对结构动力进行分析,得出自振特性,其结论可供同类工程设计参考。Xingtai Zijin Bridge is one of the long-span bridge with prestressed concrete and corrugated steel webs composite-box girder in China. The characteristics of the main structure of this type of bridge were introduced in this paper. The overall structure force and shear lag effect were analyzed with spatial finite model for whole bridge. The local analysis of the stability of the corrugated steel web plate and the integration of steel web plate and concrete roof and floor was conducted. Vibration character was obtained based on analysis of dynamic characteristic. The result can be referred to the similar engineering design.

关 键 词：波形钢腹板 预应力混凝土 箱形梁桥 剪力滞效应 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]