框架柱彎矩?fù)锨皞?cè)移二階效應(yīng)的考慮
童岳生 童申家 童潤家
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童岳生 童申家 (西安建筑科技大學(xué) 710055)童潤家 (西安煤礦設(shè)計研究院 710054)
[提要] 對框架柱彎矩同時考慮撓曲二階效應(yīng)及側(cè)移二階效應(yīng)作了分析,并對鋼筋混凝土框架在豎向荷載及水平地震力作用下的柱彎矩作了具體計算,計算結(jié)果表明鋼筋混凝土框架柱的撓曲二階效應(yīng)的影響甚小,可以不予考慮。
[關(guān)鍵詞] 框架柱 二階效應(yīng) 撓曲效應(yīng) 側(cè)移效應(yīng) 節(jié)點轉(zhuǎn)角The flexure and displacement second-order effects in the frame column are analysed. And for a reinforced concrete frame under the action of vertical load and horizontal earthquake force, the internal forces and displacements are computed.The results show that the flexure effect in the frame column is very small and can be neglected.
Keywords: frame column; second-order effect; flexure effect; displacement effect; node rotation