目前对于梁挠度的研究基本上是按照梁受纯弯曲的情况进行讨论的,忽略了剪切变形对梁挠度的影响,工程中大多数情况都是存在剪切变形的,并且精度要求比较高。本文用Beam188单元进行有限元分析,建立了有限元模型,并研究了其受载荷时的挠度。通过对传统理论分析的研究,修正了未考虑剪切变形对梁挠度的影响,为以Beam188为单元的梁的研究提供一定的参考依据。 At present, the research on beam deflection is basically based on the case that the beam is subjected to pure bending. The influence of shear deformation on the beam deflection is neglected. In most cases, there is shear deformation, and the accuracy is relatively high. In this paper, Beam188 element is used for finite element analysis, the finite element model is established, and the deflection under load is studied. Through the analysis of the traditional theory, the influence of the shear deformation on the deflection of the beam without considering the shear deformation is corrected, which provides a reference for the research on Beam188 beam.