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    龔紹熙¹   周  瑛²   陳力奮³   李  翔¹

（1 同濟(jì)大學(xué)土木工程學(xué)院 上海 200092； 2 同濟(jì)大學(xué)建筑設(shè)計(jì)研究院 上海 200092； 3 復(fù)旦大學(xué)力學(xué)與工程科學(xué)系 上海 200433）

[提要]  針對(duì)規(guī)范GBJ3 - 88中墻梁設(shè)計(jì)方法存在的問(wèn)題進(jìn)行研究，提出補(bǔ)充和改進(jìn)建議。通過(guò)簡(jiǎn)支墻梁的有限元分析摸清其應(yīng)力和內(nèi)力分布，提出托梁內(nèi)力近似計(jì)算公式和承載力簡(jiǎn)化計(jì)算公式，并改進(jìn)了墻體驗(yàn)算。給出了計(jì)算實(shí)例并與其他設(shè)計(jì)方法進(jìn)行了對(duì)比。
[關(guān)鍵詞]  簡(jiǎn)支墻梁  有限元分析  內(nèi)力簡(jiǎn)化計(jì)算  承載力計(jì)算

A study is carried out about the imperfection for design methods of the wall-beams in the Code GBJ3 - 88, and the suggestions of improvement and supplement are presented. The distribution of stresses and inner forces of the simply-supported wall-beams by the finite element analyses is groped for. The approximate calculation for inner forces of the bressummer and the simplification of calculation for bearing capacity of the beams are presented and the calculation of the walls in the wall-beams is bettered. The calculated example and the comparison between the method and other methods are given.
Keywords:  simply-supported wall-beam; finite element; simplification; inner force; calculation; bearing capacity