互联网之光张弦梁-悬链梁杂交结构施工关键技术  

Key Techniques for Construction of the Hybrid Structure System of Beam String and Catenary Beam for the Light of Internet

作　　者：王留成 邹海涛 仝书敬 蔺军 佟海鹏 王强强 吕志超 江涛 WANG Liucheng;ZOU Haitao;TONG Shujing;LIN Jun;TONG Haipeng;WANG Qiangqiang;LYU Zhichao;JIANG Tao(Zhejiang Jinggong Steel Building Group Co.,Ltd.,Shaoxing 312030,China;The Spatial Structure Research Center of Shanghai,Shanghai 200041,China)

机构地区：[1]浙江精工钢结构集团有限公司,浙江绍兴312030 [2]上海建筑空间结构工程技术研究中心,上海200041

出　　处：《建筑钢结构进展》2021年第8期97-104,共8页Progress in Steel Building Structures

基　　金：上海市科委“上海建筑空间结构工程技术研究中心”项目(14DZ2252300)。

摘　　要：乌镇世界互联网大会主展馆采用屋脊张弦梁-悬链梁杂交结构体系,形成90 m×200 m的全无柱空间。为了实现整个展馆的快速建造,整个展馆项目运用了动态模块化系统和全预制装配的逻辑。上层建筑结构设置了大量预应力索,形式新颖、受力复杂、施工难度大。为此,对主展馆钢结构施工过程中的关键技术进行了研究,主要包括柔性大跨悬链梁循环安装技术、实腹-格构组合支撑体系应用技术、多索系预应力结构张拉技术等关键技术,并针对现行规范中上端自由的单阶柱稳定计算方法,给出建议的适用范围,为同类型结构和支撑体系的推广应用和类似复杂空间结构的施工提供了一定参考。The main pavilion of the World Internet Conference in Wuzhen adopts a hybrid structure system of beam string and catenary beam,a column-free 90 meters by 200 meters space is built.In order to achieve a rapid construction for the entire pavilion,a dynamic modular system and a logic of full prefabrication are applied to the overall skin construction of the entire pavilion project.A large number of prestressed cables are applied in the superstructure.Therefore,in this paper,the key techniques of the main pavilion during steel structure construction process are studied,mainly including the cyclic installation technology of the flexible long-span catenary beam,the application technology of composite braced system of solid and lattice column,and the tension technology of multi-cable prestressed structure.According to the calculation method of the upper free single-stage column stability in the design standard,a new application scope is given,which provides a reference for the application of similar structures and support systems in future constructions.

关 键 词：张弦梁-悬链梁杂交结构 全预制装配 多索系张拉 实腹-格构组合支撑 施工关键技术 

分 类 号：TU393.3[建筑科学—结构工程]