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溫凌燕^1,2   聶建國(guó)¹
（1 清華大學(xué)土木工程系  北京100084； 2 中國(guó)電子工程設(shè)計(jì)院 北京100840）

[摘要]  用梁格法、擬板法、有限元法對(duì)四邊簡(jiǎn)支雙向鋼-混凝土組合樓蓋彈性階段的變形及內(nèi)力進(jìn)行分析。通過(guò)與試驗(yàn)結(jié)果的對(duì)比可以看出，擬板法和有限元法計(jì)算簡(jiǎn)支雙向組合樓蓋比梁格法更經(jīng)濟(jì)且計(jì)算結(jié)果更全面。改變梁格數(shù)及板厚跨比進(jìn)行算例分析可知，擬板法可用于分析常見(jiàn)結(jié)構(gòu)布置的簡(jiǎn)支雙向鋼-混凝土組合樓蓋。
[關(guān)鍵詞]  簡(jiǎn)支雙向鋼-混凝土組合樓蓋；彈性階段；梁格法；擬板法；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