也谈矩形截面梁剪应力公式推导罗开彬（重庆建筑大学，重庆６３００４５）文献［１］对矩形截面梁剪应力公式在变剪力情况下进行了推导，文献［２］对该推导提出了质疑，对此笔者也谈点粗浅的看法．材料力学中，该公式是在无分布荷载梁段（即剪力Ｑ＝ｃｏｎｓｔ）的情况下... Also on the deduction of rectangular beam shear stress formula Luo Kaibin (Chongqing University of Architecture, Chongqing 630045) [1] on the rectangular beam shear stress formula is deduced in the case of variable shear, literature [2] questioned the derivation, This author also talk superficial view. In the mechanics of materials, the formula is in the case of an undivided load beam (ie shear Q = const) ...