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Several construction and design problems in post_tensioning processes
Author(s): 
Pages: 105-108
Year: Issue:  4
Journal: ENGINEERING JOURNAL OF WUHAN UNIVERSITY(ENGINEERING EDITION)

Keyword:  后张工艺预应力摩擦损失分批次张拉;
Abstract: 介绍了后张法预应力的施工工艺、张拉预应力值的建立与预应力摩阻损失的计算方法,以及在现阶段的若干施工与设计上常见的问题,以多束钢绞线预应力筋为例分析了预应力张拉施工的摩擦损失问题,指出了分批次张拉工艺在一定情况下,对于解决张拉设备能力不足具有的应用可行性前景.
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