电解铝厂房超长混凝土结构温度效应分析
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（内蒙古科技大学建筑与土木工程学院， 包头 014010）[摘要] 由于建筑功能和生产工艺上的需求，使结构无法按规范构造要求设置相应的伸缩缝，导致结构形成超长混凝土结构。此类结构在温度作用下产生较大的内力与变形，甚至引起结构的开裂，严重影响到结构的安全和正常使用；另外，结构长度超出规范规定伸缩缝的最大间距时，仅凭定性的施工措施处理温度效应对结构的影响已不能满足结构设计的要求，同时，目前国内外关于定量计算温度效应的方法尚未有统一的规定，所以温度作用对此类结构造成的不利影响是一个亟待解决的问题。本文以实际电解铝厂房超长混凝土结构为研究对象，采用有限元分析程序对其进行定量的分析研究，探讨超长混凝土结构温度应力和变形的大小及规律，为今后类似结构的无缝设计和施工提供参考。[关键词] 超长混凝土结构; 温度效应; 有限元分析; 无缝设计中图分类号：TU375.3 文献标识码：A 文章编号：1002-848X(2013)S2-0568-04作者简介：李炳文，硕士，从事钢与混凝土组合结构研究，结构设计师，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
