同时将预应力筋张拉阶段的张拉伸长值与理论值作了比较； 对测试结果进行了对比分析。
The prestressing stage length of extension and test results are compared with the theoric calculation.
基于现有规范小曲率半径U形预应力筋张拉伸长量缺乏陈述，而该类预应力筋实测伸长值和理论伸长值偏差过大。
Little has been presented about the existing small curvature radius U-shaped prestressed tendon, whose practical elongation value and theoretical stretching elongation deviate greatly from each other.
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