【摘要】 研究了剪切效应对工字形梁弯曲挠度的影响问题。利用梁的剪应变与梁的轴向位移、弯曲挠度的微分关系，推导得到了工字形梁的弯曲微分方程，对弯曲微分方程积分可得考虑剪切效应的弯曲挠度表达式。算例分析表明，剪切效应对工字形梁弯曲挠度有较大影响。更多还原

【Abstract】 The influence of shear effect on the bending deflection of I-shape beam is researched in the paper. Based on the differential relationship between the shear strain of the beam and the axial displacement and bending deflection, the bending differential equation of the I-shape beam is derived. By integrating the bending differential equation, the expression of the bending deflection is obtained with the shear effect taken into account. The examples show that the shear effect has a great influence on the bending deflection of I-shape beam.更多还原