某超长异形曲面单层网壳结构设计与分析  

Design and analysis of a super⁃long profiled curved single⁃layer reticulated shell structure

作　　者：沈金 王俊 王成志 林巍 SHEN Jin;WANG Jun;WANG Chengzhi;LIN Wei(The Architectural Design&Research Institute of Zhejiang University Co.,Ltd,Hangzhou 310028,China)

机构地区：[1]浙江大学建筑设计研究院有限公司,杭州310028

出　　处：《建筑结构》2023年第20期33-39,共7页Building Structure

基　　金：住房和城乡建设部研究开发项目(K20200709);浙江大学平衡建筑研究中心科研项目(2021⁃KYY⁃669000⁃0018)。

摘　　要：秦皇河国家湿地修复及保护技术中心包含四季植物温室、接待中心、综合服务中心、湿地修复展厅、植物科普体验馆(城市展厅)、设备用房以及室外灰空间等。5个单体通过一个自由曲面的大跨度屋盖连成整体,上部为大跨单层钢网壳屋盖,下部为钢筋混凝土框架。本工程存在超长、异形、大跨等复杂情况,设计时进行多软件复核计算、抗震性能化设计、抗连续倒塌验算、网壳非线性稳定及支座刚度敏感性分析、复杂构件及节点细部有限元分析等计算分析并采取合理的构造措施,保证整体结构的工作性能和结构的经济性。Qinhuang River National Wetland Restoration and Protection Technology Center includes the four seasons plant greenhouse,reception center,comprehensive service center,wetland restoration exhibition hall,plant science popularization experience hall(urban exhibition hall),equipment room,outdoor gray space and other functions.The five individual buildings are connected into a whole through a large-span roof with a free curved surface.The upper part is a large-span single-layer steel reticulated shell roof,and the lower part is a reinforced concrete frame.The project has complicated conditions such as super-long,special-shaped and large-span.During the design,the multi-software review calculation,performance-based seismic design,anti-continuous collapse checking calculation,reticulated shell nonlinear stability and support stiffness sensitivity analysis,complex components and node details finite element analysis and other calculations were analyzed and reasonable structural measures were taken,which ensures the overall structure performance and structure economy.

关 键 词：超长异形曲面结构 单层网壳 大跨度屋盖 非线性稳定 抗震性能化设计 抗连续倒塌 

分 类 号：TU318.2[建筑科学—结构工程]