温凌燕^1,2   聂建国¹
（1 清华大学土木工程系  北京100084； 2 中国电子工程设计院 北京100840）

[摘要]  用梁格法、拟板法、有限元法对四边简支双向钢-混凝土组合楼盖弹性阶段的变形及内力进行分析。通过与试验结果的对比可以看出，拟板法和有限元法计算简支双向组合楼盖比梁格法更经济且计算结果更全面。改变梁格数及板厚跨比进行算例分析可知，拟板法可用于分析常见结构布置的简支双向钢-混凝土组合楼盖。
[关键词]  简支双向钢-混凝土组合楼盖；弹性阶段；梁格法；拟板法；有限元法

    Elastic Analysis of Simply Supported Two-way Steel-concrete Composite Floors
    Wen Lingyan^1,2,  Nie Jianguo¹
    (1 Dep. of  Civil Eng. ,Tsinghua University, Beijing 100084, China;  2 China Electronics Eng.  Design Inst., Beijing 100840, China)

Abstract: Grid-beams method,  orthotropic plate theory and finite element method are used to analyse the deflection and internal force of suuply supported two-way steel-concrete composite floors iIl elastic stage. The comparison between predicted results and test results show that orthotropic plate theory and finite element method are more economical and integrated than gricl-beams method.  It also can be concluded that orthotropic plate theory can be used in elastic analysis of simply supported twcrway composite floors with popular arrangement from the example analysis of different number of grid and slab height-to-span ratio.
Kevwords: simply supported two-way steel-concrete composite floors;  elastic stage:  grid-bearns method;  orthotropic plate theory