刘伊琳¹，  朱云飞²，  胡海涛¹
(1 青岛腾远设计事务所有限公司，青岛266071；2 青岛雍达建筑设计有限公司，青岛266071)

[摘要] 简要介绍了双向密肋楼盖的优点、适用范围、受力原理以及基于受力岛理论的有限元分析力学模型。并根据近年来的设计经验，以实际工程为例，对过去常用的简化设计方法和有限元计算方法进行了受力方式和计算模型输入方式的比较，并对两种不同方法的计算结果进行了经济性比较。
[关键词] 密肋楼盖；有限元分析；受力岛理论；经济性比较

Introduction to Design Methodology and Application of Two-way Ribbed Slab Floor
Liu Yilin¹,  Zhu Yunfei²,  Hu Haitao¹
(1 Qingdao Tengyuan Design Institute Co. ,Ltd. , Qingdao 266071, china; 2 Qingdao Yonda Architects Design Co. ,Ltd. , Qingdao 266071, china)

Abstract: This paper gives a brief introduction to the advantage, applicable field, mechanical principle of two-way ribbed slab floor and its finite element analysis model based on stress island theory. The author took a practical engineering project as an example, basing on her design experience of recent years, she compared the simplified design method that is usually used with the finite element method on the patterns of distribution of stress and input method, then she proceeded to a primary economic comparison between the results of the two methods.
Keywords: two-way ribbed slab floor, finite element analysis, stress island theory, economic comparison