石武客运专线悬臂施工摩阻试验探讨

Discussion on the frictional test in cantilever construction of Shi-Wu passenger special line

通过对某连续箱梁桥进行预应力摩阻试验,对现场测试数据以最小二乘法进行分析,根据得出的实测结果,修正有限元计算模型,使理论计算更加贴合现场实际,并经现场复测,得出修正相关参数的有限元分析结果较按照规范取值的有限元计算结果与现场测试值更加吻合的结论。

Based on the prestressed frictional test of a box girder bridge this paper analyzes measured data by using the smallest second multipli- cation, then corrects the finite element model to make the theoretical calculation results more consistent with the practical according to the meas- ured results. After the field retest, the finite element analysis results on the corrected related parameters is more consistent with the field test val- ue than that on the standard value.