预应力钢结构拉索张拉施工工艺研究及工程应用.pdf

施工技术 2016年5月上 66 CONSTRUCTION TECHNOLOGY 第45卷第9期 D0I:10.7672/sgjs2016090066 预应力钢结构拉索张拉施工工艺研究及工程应用* 陈茜，朱莹，张强，梁存之，冯大斌 (中国建筑科学研究院，北京100013) [摘要]预应力拉索张拉是预应力钢结构施工的关键环节，张拉工艺是否合理直接影响张拉方案的可行性及施工 操作的便捷性.基于索头形式及端部错固特点对张拉工装进行分类.结合大量工程实践给出不同类型工装的设 计要点、张拉工艺要求及适用范围.对张拉过程中常见问题进行分析与总结，并提出合理化建议.探讨在总体张 拉工艺设计、产品与工艺结合、工装的通用性与设计原则等方面应关注和解决的问题. [关键词]钢结构；预应力；拉索；张拉；千斤顶；工装 [中图分类号]TU394 [文献标识码]A [文章编号]1002-8498(2016)09-0066-05 Research and Engineering Application of Tensioning Technology on Prestressed Cables Chen Qian Zhu Ying Zhang Qiang Liang Cunzhi Feng Dabin China Academy of Building Research Beijing 100013 China) Abstract:Prestressed cable tensioning is the key link during the construction of prestressed steel structure.The feasibility and rationality of tensioning process affect the feasibility of tension scheme and the convenience of construction operation.In this paper the tensioning tooling is classified based on the forms of cable head and the characteristics of anchoring joint.The design key points requirements and scope of application of tension technology are put forward bined with many engineering practice.The mon problems in the process of tensioning are analyzed and summarized and reasonable suggestions are put forward.At last problems that should be solved and focused on tensioning process design bination of cable products and tension technology generality and design principle of tensioning tooling in the future are discussed. Key words:steel structures;prestressing;cables;...