In the steel/concrete composite beam calculation, according to the specifications, shear stresses are calculated for solid beam transverse bending, without torsional shear stress. For curved composite beams torques are large, it is necessary to study whether torsional shear stress effect should be taken into account. Considering an engineering example, the free torsional shear stresses are calculated; bending shear stresses are respectively calculated for a closed thin - walled member and a solid beam, and the calculation results were compared and analyzed for the formulation of a reasonable computation method.%论述在钢混组合梁计算中,规范中按实体梁横向弯曲剪应力计算,没有扭转剪应力计算的规定.曲线组合梁的扭矩较大,讨论是否需要考虑扭转剪应力的影响.结合工程实例,计算分析自由扭转剪应力,按闭口薄壁构件和实体梁分别计算弯曲剪应力,并对计算结果进行对比分析,提出合理的计算方法.
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