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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。
The deformation of box girder is introduced, and the deformation of continuous steel box girder with inclined support is analyzed. According to the specific experimental plan, a test model of three-span continuous steel box girder with support beam and beam transverse angles of 0 °, 15 °, 30 ° and 45 ° is established. The ABAQUS universal finite element program is used to establish the calculation model corresponding to the experiment. The finite element calculation results agree well with the experimental data. Through the test data acquisition and finite element calculation, the vertical displacement and longitudinal displacement of steel box girder under elastic working condition and the deflection under different slope are mainly considered, and the influence of slope on the deformation of the steel box girder is compared and analyzed.