約束混凝土梁溫度場(chǎng)有限元分析與研究
高志新，謝福娣，劉棟棟, 李國(guó)華
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（建筑安全監(jiān)測(cè)北京市工程技術(shù)研究中心，北京建筑工程學(xué)院，北京 100044）[摘要] 高層建筑設(shè)備多、人員密度大，建筑火災(zāi)將造成巨大的生命和財(cái)產(chǎn)損失。鋼筋混凝土結(jié)構(gòu)在高層建筑中應(yīng)用廣泛,研究其抗火性能、抗火設(shè)計(jì)理論具有重要的現(xiàn)實(shí)意義。本文利用ABAQUS有限元分析軟件,結(jié)合試驗(yàn)數(shù)據(jù),對(duì)高溫下約束混凝土梁的溫度場(chǎng)進(jìn)行了計(jì)算和分析,計(jì)算結(jié)果與試驗(yàn)結(jié)果吻合較好。溫度場(chǎng)是鋼筋混凝土梁的高溫力學(xué)性能和耐火極限分析和設(shè)計(jì)的基礎(chǔ)，本文溫度場(chǎng)的分析方法可為鋼筋混凝土梁受火損傷后加固設(shè)計(jì)提供依據(jù)。[關(guān)鍵詞] 建筑火災(zāi);ABAQUS有限元;鋼筋混凝土梁;溫度場(chǎng)中圖分類(lèi)號(hào)：TU375 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)S1-0653-05Finite element analysis and study of the temperature field of confined concrete beamsGao Zhixin ， Xie Fudi ， Liu Dongdong， Li Guohua(Beijing Engineering Research Center of Monitoring for Construction Safety,Beijing University of Civil Engineering and Architecture，Beijing 100044,China）Abstract: Building fires will cause huge loss of life and property with the high number of equipment and personnel density .The reinforced concrete structure is widely used in the buildings, to study its fire resistance and fire resistance design theory has important practical significance. This paper calculates and analyzes the temperature field of confined concrete beams by using ABAQUS finite element analysis software combining with the experimental data,the calculation results agree well with the experimental results. The temperature field is the foundation of reinforced concrete beams of high temperature mechanical properties and fire resistance analysis and design, the temperature field method of this parper provide the basis for reinforced concrete beams exposed to fire damage.Keywords: building fire；ABAQUS finite element；reinforced concrete beams；temperature field作者簡(jiǎn)介：高志新，碩士，研究生，Email：gzx313030531@163.com。
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