闵浦二桥公轨两用双层主桥中主塔设计  

Design of Main Pylon on Highway-rail Double Decked Minpu Bridge 2

作　　者：吴勇 彭俊 周良 

机构地区：[1]上海市城市建设设计研究院,上海200125

出　　处：《中国市政工程》2008年第B12期25-26,共2页China Municipal Engineering

摘　　要：上海闵浦二桥为独塔双索面钢板桁组合梁斜拉桥。主塔顺桥向为单柱式,横桥向为H型结构。介绍了主塔设计布置,根据恒载、活载、温度影响及风力荷载,进行了顺桥向静力分析;针对主塔施工阶段,施工完毕阶段和成桥阶段的不同工况,分析了横桥向受力情况,介绍了克服塔柱倾斜而产生的自重弯矩以及横梁再现裂缝的主塔施工方式。Minpu Bridge 2 in Shanghai is a cable-stayed bridge with the steel plate-truss composite girder, a single pylon and double cable planes. The main pylon is of the single column type along the bridge and the H-formed structure across the bridge. Introduced hereby is the pylon design. A . static analysis is made longitudinally based on the dead load, active load, temperature impact and wind load. The force across the bridge is also analyzed in the stages of construction and completion of the pylon and when the bridge is finished, including the ways of construction to overcome the self-weight bending moment and the transverse cracks in the cross beam generated from the slanted pylon column.

关 键 词：斜拉桥 主塔 爬模 设计 闵浦二桥 

分 类 号：U448.273.38[建筑科学—桥梁与隧道工程]