樓板中下沉式板受力性能研究
劉會軍，霍文營，余蕾，孫洪波
- 摘 要
-
(中國建筑設計研究院，北京 100044)［摘要］采用有限元方法對實際工程中存在的雙側降板型凹槽樓板進行了參數(shù)分析，比較了其與普通平板在內力分配特性和材料應力大小等方面的差異，發(fā)現(xiàn)此種樓板短邊方向的受力有明顯減小，而長邊方向的受力有所增加，除頂板與降板連接部位外，材料應力均有大幅度的降低，結合以上特性給出了相應的設計建議。［關鍵詞］凹槽樓板；雙側降板；鋼筋應力；有限元分析中圖分類號：TU375.2文獻標識碼：A文章編號：1002-848X(2011)04-0101-04Study on mechanical characteristics of fall-down slabs in floorLiu Huijun, Huo Wenying, Yu Lei, Sun Hongbo(China Architecture Design & Research Group, Beijing 100044, China)Abstract:Based on engineering practices, locally concave slabs with double-side sinking plate were studied by FEM. The comparison of mechanical behavior between locally concave slab and flat plate was carried out. Analysis result shows that the force of short side direction reduced significantly, while the force of long side direction increased, and material stress decreased except the location of conjunction. Based on above findings, some advice for design was presented.Keywords:locally concave slab; double-side sinking plate; reinforcement stress; finite element analysis作者簡介：劉會軍，碩士，助理工程師，Email：liuhj@cadg.cn。參考文獻［1］李國勝.多高層鋼筋混凝土結構設計中疑難問題的處理及算例［M］.北京:中國建筑工業(yè)出版社,2004.［2］04SG101-4混凝土結構施工圖平面整體表示方法制圖規(guī)則和構造詳圖［S］.北京:中國建筑工業(yè)出版社,2005.［3］石亦平，周玉蓉.ABAQUS有限元分析實例詳解［M］. 北京:機械工業(yè)出版社,2006.
