国家会议中心二期屋盖预应力拉索施工关键技术研究  

RESEARCH ON KEY TECHNOLOGY OF PRE-STRESSED CABLE CONSTRUCTION OF CHINA NATIONAL CONFERENCE CENTER PHASE Ⅱ

作　　者：于东晖[1] 高晋栋[2] 尧金金[2] 张致豪 司波[2] YU Dong-hui;GAO Jin-dong;YAO Jin-jin;ZHANG Zhi-hao;SI Bo(Beijing Institute of Architecture Design Co.,Ltd.,100045,Bejing,China;Building Construction Research Institute Co.,Ltd,100039,Bejjing,China)

机构地区：[1]北京市建筑设计研究院有限公司,北京100045 [2]北京市建筑工程研究院有限责任公司,北京100039

出　　处：《建筑技术》2021年第5期534-536,共3页Architecture Technology

摘　　要：张弦结构是大跨度预应力钢结构的主要形式,其中预应力施工是整体施工的关键步骤。国家会议中心二期工程屋盖采用预应力张弦拱壳结构,钢结构安装采用“累计滑移为主、吊装为辅”的安装方案;预应力拉索张拉采用分级张拉工艺,以索力控制为主,监测结构变形为辅。String structure is one of the main forms of long-span prestressed steel structure,in which pre-stressed construction is the key step of overall construction.China National Conference Center Phase Ⅱ adopts the pre-stressed string-beam structure.The steel structure of the project adopts the installation scheme of"cumulative slippage as the main part and hoisting as the auxiliary part".The pre-stressed cable tensioning adopts the graded tensioning process,cable force control is the main method,and structural deformation monitoring is the auxiliary method.

关 键 词：张弦结构 滑移施工 分级张拉 

分 类 号：TU74[建筑科学—建筑技术科学]