大跨度预应力张弦桁架的滑移施工

Sliding construction of prestressed long-span truss string structures

根据现场条件和工期要求,广州国际会议展览中心展览大厅屋盖钢结构的安装采用了滑移施工方法.本文介绍了单榀张弦桁架及区间整体滑移过程中的几个问题与处理方法,为今后工程施工提供有益经验与建议.

According to the construction condition and time limitation of the project, the sliding method is adopted in the construction of the steel roof of Guangzhou International Convention & Exhibition Center. The paper introduces the problems in the sliding construction of a single truss string structure and a unit and provides the relevant measures. Some useful suggestions are also provided for the construction of other projects.