大跨度交叉式张弦梁屋盖施工技术  

Construction Technology of Large Span Cross Beam String Roof

作　　者：张富森 ZHANG Fusen(Guangdong Fourth Construction Engineering Co.,Ltd.Guangzhou 510100,China)

机构地区：[1]广东省第四建筑工程有限公司,广州510100

出　　处：《广东土木与建筑》2023年第12期117-119,123,共4页Guangdong Architecture Civil Engineering

摘　　要：以珠海某体育馆大跨度交叉式张弦梁屋盖为背景,分析研究了在屋盖施工过程中面临的技术问题,采用迈达斯软件进行有限元三维仿真模拟分析,动态模拟分析交叉式张弦梁各种工况下的变形,优化了预应力张拉顺序和屋盖混凝土浇筑顺序,解决了荷载叠加引起的一系列影响施工质量及生产安全的问题,张弦梁屋盖变形监测数据与有限元模拟分析结果相吻合。Taking the large-span intersecting beam string roof of a gymnasium in Zhuhai as the background.Analyzed and studied the technical problems faced during the roof construction process.Using Midas software for finite element three-dimensional simulation analysis.Dynamic simulation analysis of deformation of cross beam string under various working conditions.Optimized the sequence of prestressed ten‐sioning and roof concrete pouring.Optimized the prestressed tensioning sequence and roof concrete pouring sequence to solve a series of problems caused by load superposition that affect construction quality and production safety.The deformation monitoring data of the beam string roof is consistent with the finite element simulation analysis results.

关 键 词：大跨度 交叉式 张弦梁 BIM技术 三维仿真 分级张拉 

分 类 号：TU745.2[建筑科学—建筑技术科学]