2014年7月下 施工技术 第43卷第14期 CONSTRUCTIONTECHNOLOGY 145 DOI:10.7672/sgjs2014140145 大跨度双层不规则空间球形网壳钢结构安装技术 王佳斯',鲁博',张宇²,张荣荣3 (1.沈阳建筑大学土木工程学院,辽宁沈阳110168;2.辽宁省基建办公室, 辽宁沈阳110005;3.江苏沪宁钢机股份有限公司,江苏宜兴214231) [摘要】辽宁省科技馆新馆工程,球幕影院部分结构形式为大跨度双层不规则空间球形网壳钢结构。
本工程具有 构件数量大、构件节点多、空间曲面大、空间角度复杂多变、空间安装精度要求高、全熔透焊接节点多、焊接工作量 大、施工过程与其他专业工程交叉施工的特点。
重点研究和分析了大跨度双层不规则空间球形网壳钢结构安装技 术。
根据工程特点,将球形网壳钢结构按安装单元分块,设置临时支撑,分块安装。
实践证明:该方法满足设计要 求,施工技术合理。
【关键词】钢结构;球幕;球形网壳;安装;支撑 [中图分类号】TU758.11 [文献标识码]A [文章编号】1002-8498(2014)14-0145-04 Installation Technology ofLarge-span Double-layerIrregularSpatialSphere-shellSteelStructure (1.School ofCivilEngineering,Shenyang JianzhuUnitersity,Shenyang,Liaoning110168,China; 2.CiilConstructionOffcefLioningProince,Shenyang,Liaoningl10005,China; 3.Jiangsu Huning Steel Mechanism Co.,Lad.,Yixing,Jiangsu 214231,China) Abstract:The structure form of the ball screen in the new building of Liaoning Science Museum is large- span double-layer irregular spatial spherical-shell structure.The project has the characteristics of extensive members and joints,large space curved surface,plex space angle,high-quality installation,extensive full-penetration joints,workload-intensive welding,and cross-construction with other engineering project.This paper takes Liaoning Science Museum as an example,through the steel structure project of spherical cinema in this museum,focusing on the analysis of the installation technology of large-span double-layer and irregular spatial spherical-shell structure.According to the engineering characteristics,the steel structure was divided into units,which were installed separately through seting temporary supports.The construction practice shows that this technology can meet design requirements and isreasonable. Key words;steel structures; ball screen; spherical shell; installation; supports 1工程概况 辽宁省科技馆工程位于沈阳市浑南新城内,项 目规划建设用地面积为69100m²;总建筑面积为 107819m²,其中地上建筑面积为84372m²,地下建 筑面积为23447m²。
本项目主体建筑地面6层,局 部3层,高度33m,地下室1层。
建筑主要包括球幕 图1辽宁省科技馆效果 影院、综合展览、观众服务、教育培训、综合影...