大跨空间钢结构预应力施工技术研究与应用——大跨空间钢结构预应力施工方法和张拉装备  

Research and Application of Long-span Space Steel Structure Prestress Construction Technology ——Construction Method and Tensioning Equipment of Long-span Space Steel Structure Prestress Technology

作　　者：郭正兴[1] 罗斌[1] 

机构地区：[1]东南大学土木工程学院,江苏南京210096

出　　处：《施工技术》2011年第6期102-110,共9页Construction Technology

基　　金：2004年国家自然科学基金项目(50378083);2006年江苏省科技厅基金项目(BK2006104);2004年江苏省建设厅项目(JS200440)

摘　　要：拉索施工是个系统工程,从分析、制作、安装到张拉必须保持一致性,其中以张拉为核心,分析、制作、安装和误差调整及相关索节点构造、索头形式、张拉装备等都必须服务于张拉。根据大量工程研究和实践,提出了拉索制作、安装和张拉的基本技术要求及相关施工工艺和张拉装备的创新,包括:拉索制作长度和调节量的确定,索体、锚具、调节装置和连接件的选配;安装和张拉对拉索制作的基本要求;平索和斜索的安装工艺;被动张拉技术的关键控制;主动索和被动索的确定原则等。Cable construction is a system engineering, which demands the analysis, fabrication, installation and tensioning to be consistent. In this system, tensioning is core, analysis, fabrication, installation, error adjustment and corresponding structure of cable joint, cable ending style, tensioning equipment are auxiliary for tensioning. According to many practice research, the basic technology requirements for cable fabrication, installation and tensioning, and corresponding construction technology and innovation of tensioning equipment are put forward, including the assurance of fabrication length and adjustment quantity of cable, the choosing and setting of cable, anchor adjustment equipment, the basic requirement of installation and tensioning on fabrication of cable, the installation technique of flat cable and inclined cable, the key control technology of passive tensioning and assurance principles of initiative cable and passive cable, and so on.

关 键 词：大跨空间钢结构 预应力 拉索 制作 安装 张拉装备 

分 类 号：TU758.166[建筑科学—建筑技术科学]