曲面点支式玻璃幕墙超静定支撑结构的施工技术  

Construction Technology of the Hyperstatic Support Structure for Curved Point-supported Glass Curtain Walls

作　　者：陈红秋[1] 蒋凤昌[2] 孙浩光 

机构地区：[1]泰州职业技术学院,江苏泰州225300 [2]同济大学,上海200092 [3]中国江苏国际经济技术合作公司,南京210008

出　　处：《建筑科学》2011年第11期92-95,91,共5页Building Science

摘　　要：为了使超静定支撑结构施工时的受力状态接近设计计算时的假定条件,本文采用了"施加预应力法"进行无锡新区科技交流中心项目点支式玻璃幕墙支撑结构的安装工作。设计制作了楔块顶升系统装置,并对其在现场进行标定试验以确定柱预紧力与扭力扳手读数之间的对应关系,同时进行影响性试验以掌握后安装柱对邻近的先安装柱的卸压规律,从而快速精确地给216根钢管柱施加相同应力水平的预应力,消除了由安装间隙可能引起的结构安全隐患。The prestress method is applied to install the hyperstatic support structure for the curved point-supported glass curtain wall in Wuxi New District Science Technology Communication Center,for the loading state of construction to match the assumed condition of design.The wedge-jacking system was manufactured,and its rating test was carried out to establish the relationship between the prestress of steel pipe columns and the reading of the torsion spanner.Simultaneously,the influence test was done to comprehend the unloading law of the effect of later installed columns on early installed adjacent columns.Thereafter,216 steel pipe columns were installed speedily and accurately,and they have almost the same prestress so as to eliminate potential safety hazard caused possibly by the installation gap.

关 键 词：幕墙支撑结构 超静定结构 预应力 施工技术 

分 类 号：TU382[建筑科学—结构工程] TU757