關(guān)于壓彎鋼構(gòu)件腹板局部穩(wěn)定性驗算的探討
1趙 峰 2郭耀杰
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（1武漢科技大學(xué)430070 2武漢大學(xué)430072)
[提要]提出了直接考慮腹板最大使用壓應(yīng)力條件下，壓彎構(gòu)件腹板高厚比限值計算公式，該公式可用于非直接承受動力荷載的壓彎鋼構(gòu)件腹板局部穩(wěn)定性驗算，可以省略鋼結(jié)構(gòu)設(shè)計規(guī)范關(guān)于壓彎鋼構(gòu)件局部穩(wěn)定驗算中有效截面法的補充驗算。實例計算表明，該公式在工程設(shè)計中是適用的。[關(guān)鍵詞] 腹板 高厚比 限值 應(yīng)力 修正On the condition that the maximum stress of web is considered directly, it is put forward that the calculating formula of the limit of height to thickness ratio of web of steel member with flexure and axial load. The formula can be applied to check computations of the local stability of web of member with flexure and axial load under indirect dynamical load. It can be omitted that the supplement check of effective area method in code for design of steel structures. The calculations of examples show the formula is suitable to use in the design of engineering.Keywords: web; height to thickness ratio; limit; stress; correction
