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（1 天津市建筑設(shè)計(jì)院， 天津 300074； 2 北京銀泰建構(gòu)預(yù)應(yīng)力工程有限公司， 北京 100085）

［摘要］以某典型大跨度現(xiàn)澆混凝土空心樓蓋項(xiàng)目為例，分別用有限元法、擬梁法和擬板法對(duì)大跨度現(xiàn)澆混凝土空心樓蓋進(jìn)行分析。通過對(duì)計(jì)算結(jié)果進(jìn)行比較，得出整體計(jì)算有限元模型能真實(shí)模擬構(gòu)件的邊界條件，直觀反映各區(qū)域的內(nèi)力分布情況，有限元法計(jì)算結(jié)果優(yōu)于其他方法。因此提出了在合理劃分網(wǎng)格的情況下，有限元法最適用于大跨度現(xiàn)澆混凝土空心樓蓋的結(jié)論，并介紹了大跨度現(xiàn)澆混凝土空心板技術(shù)在熙匯廣場(chǎng)項(xiàng)目的實(shí)際應(yīng)用。

［關(guān)鍵詞］大跨空心板； 有限元法； 擬梁法； 擬板法

中圖分類號(hào)：TU375文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)06-0041-03

Analysis method and engineering application of large span cast-in-situ concrete hollow floors

Wang Yang1， Liu Ruijie2， Chen Bohai1

(1 Tianjin Architecture Design Institute, Tianjin 300074， China； 

2 Beijing Intime-construction Post-tensioning, Beijing 100085， China)

Abstract:Taking a typical large-span cast-in-situ concrete hollow floor as an example, the finite element method, analogue cross beam method and plate analogy method were used to analyze the results. By comparing the calculated results, it is concluded that the finite element model of the whole calculation can simulate the boundary condition of the component, and reflect the distribution of internal forces intuitively. The result of the finite element method is better than other methods. Therefore, the conclusion that the finite element method is suitable for large-span cast-in-situ concrete hollow floor was put forward, and the practical application of large-span cast-in-situ concrete hollow floor in Xihui Square project was presented.

Keywords:large span hollow slab; finite element method; analogue cross beam method; plate analogy method

作者簡(jiǎn)介：王楊，碩士，高級(jí)工程師，Email:vipwang@wo.cn。