【摘要】 采用三维退化梁、板单元组合的方法 ,分析了薄壁箱形梁在对称荷载作用的弯曲问题。通过具体算例 ,给出箱梁翼板上下表面的弯曲正应力分布曲线 ,讨论了横向荷载作用位置变化对箱梁剪力滞效应的影响 ,为该类问题的计算提供了一种较为行之有效的方法。更多还原

【Abstract】 The combinatorial element method of 3 D deteriorate beam and plate for bending analysis of box girder is introduced., and by the distribution graphs of bending stress on the upplane of box girder, the paper discusses the shear lag effect of box girder under different transverse loads. Through actual calculations, the method proves to be simple and effective for box girder analysis.更多还原