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友阿国际广场步行街位于湖南省郴州市,其天幕采用单层钢结构网壳结构形式,网壳由矩形钢管通过米字形节点连接而成,空间形状复杂,且现场场地狭窄,仅有塔吊等吊装工具,给钢结构加工和安装带来了非常大的困难。针对网壳钢结构本身的特点并结合实际情况提出了工厂单独制作节点和杆件、现场制作纵向安装段、搭设满堂脚手架、安装段定位和调节装置、安装纵向安装段、安装斜杆、精确定位和施焊等施工思路和方法,并在项目中得到了应用,效果良好,既提高了钢结构的制作和安装效率,也保证了项目的安装精度和质量。对网壳结构进行了整体结构验算和代表性节点的有限元分析,证明了结构在施工阶段的安全性。
Friends of the International Plaza Pedestrian Street is located in Chenzhou City, Hunan Province, the sky with a single-story steel structure reticulated shell structure, the reticulated shell made of rectangular steel pipe connected by a rice-shaped node, the space shape is complicated, and the venue is narrow, only tower crane hoisting Tools, to steel processing and installation has brought great difficulties. In view of the characteristics of the steel shell itself and the actual situation, the factory made a separate production of nodes and rods, the scene making vertical installation section, set up full-scale scaffolding, installation section positioning and adjustment device, the installation of longitudinal installation section, the installation of oblique, accurate positioning And welding and other construction ideas and methods, and has been applied in the project, the effect is good, both to improve the production and installation of steel efficiency, but also to ensure the accuracy and quality of the project installation. The whole structure of the reticulated shell is checked and the finite element analysis of the representative node is carried out, which proves the safety of the structure in the construction stage.