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等宽槽型截面剪力中心的位置与截面上剪应力的分布规律有内在联系。本文通过不同的假定介绍材料力学与薄壁开口截面杆件来导演出不同的计算公式,并通过示例作一对比与说明。对厚壁截面作者提出一简明修正公式然后从计算对比中作出小结,说明钢筋混凝土厚壁截面无论用材料力学公式或薄壁杆件公式得出的剪切中心e均值得商榷。
The location of shear center of equal width groove section is intrinsically related to the distribution of shear stress on section. In this paper, we introduce different formulas of material mechanics and thin-walled section members through different assumptions, and compare them with examples. A simple correction formula for the author of thick-walled section is proposed. Then a summary is made from the comparison of calculated results. It is arguable that the shear center e of the thick-walled reinforced concrete section obtained by either the material mechanics formula or the thin-walled rod formula is questionable.