884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

     安海玉   凌光容
    （天津大學(xué)建筑設(shè)計(jì)研究院 300072）

[提要]  考慮密肋板雙向受力的相關(guān)性和鋼筋混凝土的非線性特性，采用剛度等效的正交各向異性板單元模型求解密肋板在豎向荷載下的變形，編制了程序WAF;并用試驗(yàn)結(jié)果驗(yàn)證其正確性，證明這一方法準(zhǔn)確易行，適于工程應(yīng)用。
[關(guān)鍵詞]  密肋板  板單元  開裂彎矩  屈服剛度

Considered relativity of two-way and nonlinear behavior of reinfored concrete, analytical method for the orthotropic rigidities of waffle slab under vertical loads is presented. Software namecl“WAF”is programmed. The experimental  results verify the proposed analytical method.The method is valid for engineering.
Keywords:  waffle slab; slab element; bending moment; cracking; yield stiffness