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针对波形钢腹板混凝土简支工字梁,运用能量法推导在集中力作用下,考虑剪切变形的挠度计算公式。通过与实体有限元模型比较,表明计算公式有较好的精度。参数分析表明:高跨比大于1/20,剪切挠度占总挠度超过10%;剪切变形对跨中挠度的贡献程度,随着波折角、波高的增大而增大;波形钢腹板混凝土工字梁相对于平钢腹板混凝土工字梁、混凝土腹板工字梁有更大的剪切变形。
Aiming at the simply supported I-beam with corrugated steel webs, the formula of deflection calculation considering shear deformation under the action of concentrated force is deduced by energy method. Compared with the solid finite element model, it shows that the calculation formula has better accuracy. The parameter analysis shows that the ratio of shear deflection to total deflection exceeds 10%, and the contribution of shear deformation to mid-span deflection increases with the increase of wave angle and wave height. Concrete I-beam relative to the flat steel web I-beam, I-beam concrete web have greater shear deformation.