通过某预应力连续箱梁桥纵向通长束张拉过程中出现张拉力达到设计要求但伸长量未达到设计要求的问题进行了分析,用实测伸长量对μ和k进行拟和来确定其合理取值,优化后伸长量和实测伸长量较为吻合,为类似预应力筋张拉问题分析提供参考。 Through the prestressed continuous box girder bridge longitudinal long beam tension in the process of tension to meet the design requirements but the elongation does not meet the design requirements of the problem was analyzed with the measured elongation μ and k to be fitted to determine The reasonable value, the optimized elongation and the measured elongation are in good agreement, which provides a reference for the similar prestressed tendon tension analysis.