无梁楼盖计算方法有关问题的探讨  

Discussion on Issues Related to the Calculation Method of Flat Slab Structure

作　　者：阙德兴 王亚丽 刘利艳 QUE Dexing;WANG Yali;LIU Liyan(South China Chuangtu Design Co.,Ltd.Guangzhou 510080,China;Guangzhou GOHWA Survey Co.,Ltd.Guangzhou 511400,China;Guangzhou Design Institute Group Co.,Ltd.Guangzhou 510620,China)

机构地区：[1]华南创图设计有限公司,广州510080 [2]广州市吉华勘测股份有限公司,广州511400 [3]广州市设计院集团有限公司,广州510620

出　　处：《广东土木与建筑》2023年第8期58-61,共4页Guangdong Architecture Civil Engineering

摘　　要：介绍了竖向荷载作用下无梁楼盖的各种计算方法,并对无梁楼盖的手算方法和有限元法从内跨弯矩分配比例、计算跨度取值等方面进行了案例对比分析。结果表明,采用经验系数法或等代框架法计算时,内跨柱上板带与跨中板带的跨中正弯矩分配比例按0.55∶0.45较为合理;计算跨度取值,对于托板柱帽建议取L0=L-2/3C,对于斜柱帽建议取L0=L-bce;计算时可根据文中表格直接求出单位宽度的板带弯矩值。Various calculation methods of flat slab structure under vertical load are introduced,and the manual calculation method and fi‐nite element method of flat slab structure are compared and analyzed from two aspects:the distribution ratio of the bending moment of the inner span and the calculation of the span value.The results show that when the empirical coefficient method or the equal frame method is used to calculate,the distribution ratio of the positive bending moment of the inner span column upper plate belt and the span middle plate belt is more reasonable at 0.55∶0.45,and the value of the span is calculated by L0=L-2/3C for the pallet column cap and L0=L-bce for the oblique column cap.When calculating,the bending moment value of the plate strip per unit width can be directly calculated according to the table in the text.

关 键 词：无梁楼盖 经验系数法 等代框架法 有限元法 柱帽 

分 类 号：TU318.2[建筑科学—结构工程]