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.pdf

施工技术 2011年6月上 102 CONSTRUCTION TECHNOLOCY 第40卷第342期 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 郭正兴，罗斌 (东南大学土木工程学院，江苏南京210096) [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. [关键词]大跨空间钢结构；预应力；拉索；制作；安装；张拉装备 [中图分类号]TU758.166 [文献标识码]A [文章编号]1002-8498(2011)11-0102-07 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 Guo Zhengxing Luo Bin (School of Ciuil Engineering Southeast Unisersity Nanjing Jiangsu 210096 China) Abstract: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...