黔江特大桥悬臂施工竖向预应力钢绞线锚固端套筒挤压技术探析  

Analysis on Sleeve Extrusion Technology of Vertical Prestressed Steel Strand Anchor end in Cantilever Construction of Qianjiang Bridge

作　　者：吕伯厚 Lü Bo-hou(Gansu Institute of Communications Sciences Co., Ltd. Gansu Lanzhou 730000, China)

机构地区：[1]甘肃省交通科学研究院有限公司

出　　处：《科技视界》2019年第18期89-90,共2页Science & Technology Vision

摘　　要：文章结合黔江特大桥4#墩0#块竖向预应力钢绞线套筒挤压施工实例,对套筒卡簧挤压不到位影响到张拉时脱束现象进行了分析,找出了问题出现的症结所在,并采取措施予以纠正,为后续施工提供了一定的借鉴性。Combined with the example of vertical prestressed steel strand sleeve extrusion construction of No. 4 pier 0 # of Qianjiang Bridge, this paper analyzes the phenomenon of unbundling caused by the lack of sleeve spring extrusion, finds out the crux of the problem, and takes measures to correct it, which provides a certain reference for the subsequent construction.

关 键 词：竖向预应力钢绞线 锚固端套筒挤压 技术探析 

分 类 号：U445.57[建筑科学—桥梁与隧道工程]