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吳邦達(dá) （中國兵器工業(yè)第五設(shè)計(jì)研究院 北京 100053）
[提要] 超長鋼筋混凝土框架在溫度應(yīng)力作用下的分析很復(fù)雜，當(dāng)求得柱頂側(cè)移后，用A值法計(jì)算桿端彎矩，然后可得出剪力、軸力。實(shí)質(zhì)上A值法為在水平力作用下的一次位移分配法，計(jì)算簡便，精度較高。
[關(guān)鍵詞] 超長框架 溫度應(yīng)力 側(cè)移彎矩 A值法It is very complicated to analyse temperature stress in ultralong reinforced concrete frames. After calculating sidesway of the top of columns, the end moment of memders can be obtained by A-value method. Then the shear and axial forces of the frame can be obtained too. In substance, A-value method is a once displacement distribution method for analyzing frames subjected to horizontal forces. This caculation method is simple, and its accuracy is very high.
Keywords: ultralong frame; temperature stress; sidesway moment; A -value method
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