大吨位小半径空间曲线超长预应力束张拉施工  

Stretching Construction of Prestressed Bundled Bars with Big Tonage,Sharp-Radius of Space Curve and Overlength

作　　者：郝广成[1] 张洪军[1] 康乐 辛晓慧[1] 

机构地区：[1]吉林省交通建设集团第九公司,长春130102 [2]宁波市绕城高速公路(西段)建设办公室,宁波315040

出　　处：《北方交通》2006年第10期43-45,共3页Northern Communications

摘　　要：以一座典型的预应力混凝土连续梁桥———南湖大路高架桥为工程背景,对小半径空间曲线预应力筋理论伸长量计算、预应力张拉施工进行了十分有益的探索。为类似工程设计与施工提供参考。As background with a typical continuous beam bridge of prestressed concrete -the elevated bridge at Hunan Road, the paper makes a fully valuable exploration of the theoretical extension of prestressed bundled bars with sharpradius of space curve,and of the construction of stress stretching, which have offered a reference for similar design and construction of project.

关 键 词：空间曲线 超长预应力筋 伸长量 张拉 施工 

分 类 号：U448.35[建筑科学—桥梁与隧道工程]