電解鋁廠房超長(zhǎng)混凝土結(jié)構(gòu)溫度效應(yīng)分析
李炳文，銀英姿
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（內(nèi)蒙古科技大學(xué)建筑與土木工程學(xué)院， 包頭 014010）[摘要] 由于建筑功能和生產(chǎn)工藝上的需求，使結(jié)構(gòu)無(wú)法按規(guī)范構(gòu)造要求設(shè)置相應(yīng)的伸縮縫，導(dǎo)致結(jié)構(gòu)形成超長(zhǎng)混凝土結(jié)構(gòu)。此類結(jié)構(gòu)在溫度作用下產(chǎn)生較大的內(nèi)力與變形，甚至引起結(jié)構(gòu)的開裂，嚴(yán)重影響到結(jié)構(gòu)的安全和正常使用；另外，結(jié)構(gòu)長(zhǎng)度超出規(guī)范規(guī)定伸縮縫的最大間距時(shí)，僅憑定性的施工措施處理溫度效應(yīng)對(duì)結(jié)構(gòu)的影響已不能滿足結(jié)構(gòu)設(shè)計(jì)的要求，同時(shí)，目前國(guó)內(nèi)外關(guān)于定量計(jì)算溫度效應(yīng)的方法尚未有統(tǒng)一的規(guī)定，所以溫度作用對(duì)此類結(jié)構(gòu)造成的不利影響是一個(gè)亟待解決的問題。本文以實(shí)際電解鋁廠房超長(zhǎng)混凝土結(jié)構(gòu)為研究對(duì)象，采用有限元分析程序?qū)ζ溥M(jìn)行定量的分析研究，探討超長(zhǎng)混凝土結(jié)構(gòu)溫度應(yīng)力和變形的大小及規(guī)律，為今后類似結(jié)構(gòu)的無(wú)縫設(shè)計(jì)和施工提供參考。[關(guān)鍵詞] 超長(zhǎng)混凝土結(jié)構(gòu); 溫度效應(yīng); 有限元分析; 無(wú)縫設(shè)計(jì)中圖分類號(hào)：TU375.3 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)S2-0568-04作者簡(jiǎn)介：李炳文，碩士，從事鋼與混凝土組合結(jié)構(gòu)研究，結(jié)構(gòu)設(shè)計(jì)師，lbw11111@126.com。Study on temperature effect of the super-long concrete structure in electrolytic aluminum plantsLi Bingwen, Yin Yingzi（College of Architecture and Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010,China）Abstract: Due to the demand on the architectural features and production processes, so that the structure can not be constructed according to specifications requirements set corresponding expansion joints, cause the structure to form a long concrete structure. Such structures have a greater force and deformation under the action of temperature, and even cause cracking of the structure, serious impact on the safe and proper use of the structure; further, structure is longer than the specification maximum spacing of joints alone the qualitative construction measures to deal with the impact of the temperature effect on the structure can not meet the requirements of structural design, meanwhile, at home and abroad on the quantitative calculation of the temperature effect is not yet unified, the adverse effects of the temperature effect of such structure is an urgent problem. In this paper, the actual electrolytic aluminum plant long concrete structure as the research object, using finite element analysis program to the study of quantitative analysis to explore the temperature stress and deformation of the size of the long concrete structure and laws for future similar structure seamless design and reference to the construction.Keywords: super-long concrete structure; temperature effect; finite element analysis; seamless design
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