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本文通过对不同梁高跨比的T梁翼缘有效宽度的力学分析,给出了考虑横向剪切变形影响的T梁结构翼缘有效宽度取值公式。对本文公式的讨论表明:T梁结构翼缘有效宽度不是常数,而随梁的不同高跨比、宽跨比、梁高与翼缘厚度比、梁跨度与翼缘厚度比及材料泊松比变化而改变;文献的公式为本文公式当梁高跨比趋于零时的特例。
In this paper, through the mechanical analysis of the effective width of the flange of T-beams with different beam height-span ratios, the formula of the effective width of the flange of T-beam structure considering the influence of transverse shear deformation is given. The discussion of this formula shows that the effective width of the flange of a T-beam structure is not constant, but varies with the beam height ratio, width-span ratio, ratio of beam height to flange thickness, ratio of beam span to flange thickness, and Poisson’s ratio of the material. The change is a change; the formula of the literature is a special case of this formula when the ratio of high beam span to zero tends to zero.