- 摘 要
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肖芝蘭 曾慶響
（五邑大學(xué)土木工程系 江門 529020）[提要] 根據(jù)廣義位移計算的一般公式導(dǎo)出縱向齒狀截面簡支梁的撓度計算方法，以實際工程中縱向齒狀截面梁的典型樓梯梁（板）為對象，考慮彎矩和剪力的共同作用，綜合分析了縱向齒狀截面和跨高比的變化對梁撓度計算等效高度的影響，進而得出縱向齒狀截面梁撓度計算的簡便方法和幾條實用的結(jié)論，并提出幾點應(yīng)注意的問題。
[關(guān)鍵詞] 樓梯梁 縱向齒狀截面 等效高度 撓度 簡化計算A deflection calculation method of beams with longitudinal dentiform section was carried out from the formula of general displacements calculating. The stair bearers were considered as typical representations of longitudinal dentiform section beam,the combine action of bending moment and shear force was taken into account. The influences, which acted on beam's equivalent depth in deflection calculating caused by the change of longitudinal dentiform section and the ratio of span to depth, were comprehensively analyzed. Therefore, the simplified calculation methods of longitudinal dentiform section beam's deflection are clerived, several practical conclusions are presented, and some problems to which should be paid attention are posed.
Keywords: longitudinal dentiform section; equivalent depth; deflection; simplified calculation method
