本文以软土地基上弹性地基梁为对象,分析梁底水平剪力对梁的内力,主要是弯矩的影响。文中演引出这种梁的弹性弯曲微分方程,并直接从微分方程求出解析解。最后通过算例分析了梁底水平剪力对弯矩影响的大小。 In this paper, the elastic foundation beam on soft soil foundation is taken as the object, and the horizontal shear force at the beam bottom is analyzed for the internal force of the beam, mainly the influence of the bending moment. The elastic bending differential equations of such beams are derived in the paper, and analytical solutions are obtained directly from differential equations. Finally, the influence of the horizontal shear force on the bending moment at the bottom of the beam is analyzed through an example.