斜支撑钢箱梁变形分析

介绍箱形梁变形的特点，分析在不同斜率下斜支撑连续钢箱梁的变形。根据具体的试验规划，建立支撑线与梁横向交角为0°、15°、30°、45°的三跨连续钢箱梁的试验模型。利用ABAQUS通用有限元程序建立与试验相对应的计算模型。其有限元计算结果与试验数据吻合较好。通过试验数据采集和有限元计算，主要考虑钢箱梁在弹性工作状态下的节点竖向位移、纵向位移以及不同斜率下的挠度，对比分析斜率对钢箱梁变形的影响。

Analysis of deformation of skew surpport steel box girder

It introduces the deformation characteristics of box girder and analyzes the deformation of skew support continuous steel box girder under different slope. According to the specific test plan, the test models of 3-spans continuous steel box girder are established which the intersection angles between support line and the crosswise of the beam are 0°, 15°, 30°, 45° respectively, a calculation model by ABAQUS general finite element program is provided which is correspondent with experiment. The result of the finite element coincides with the test date preferably. By means of test data collection and finite element calculation, the node vertical displacement, vertical displacement and deflection under different slope under elastic working state are taken into account to compare the slope effect on the deformation of steel box girder.