高层建筑结构非弹性时变分析方法*
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（1 同济大学建筑工程系，上海 200092；2 同济大学建筑设计研究院（集团）有限公司，上海 200092）
[摘要] 传统的高层建筑时变分析分析方法是通过结构弹性时变分析得出结构的内力时程进而得出构件的非弹性变形时程，而并未考虑内力时程与变形时程之间的相互关联性。事实上结构在施工过程中从一个施工阶段向后一个施工阶段转化时，内力将不断重新分布，结构在前一个施工阶段的力学性态也必然会对后续的施工阶段的力学性态的产生影响，变形也随之相应发生变化，反过来影响内力的分布，这种时变的耦合作用在现阶段采用的结构非弹性时变分析方法中还未体现。本文提出的非弹性时变分析方法通过对结构在施工过程中由收缩徐变引起的时变作用的预计算，发现耦合效应对竖向构件内力有着不可忽视的影响。[关键词] 时变作用;耦合效应;竖向变形;超高层结构中图分类号：TU313 文献标识码：A 文章编号：1002-848X(2013)S1-0995-05*上海市科技攻关计划资助（编-号：09dz1207704）；上海市青年科技启明星计划（跟踪）资助（编号：11QH1402700）。通讯作者：郁冰泉，Email:ybqcxx@126.com。The time-varying and coupling effect of super high-rise structuresYu Bingquan 1, Zhao Xin 2(1 Department of Building Engineering, Tongji University, Shanghai 200092, China；2 Tongji Architectural Design (Group) Co., Shanghai 200092, China)Abstract: The forces of super high-rise structures will be redistributed during the construction of structures; the former mechanical phase will have an impact on the next one. Nowadays, this time-varying coupling effect hasn’t be reflected in the methods of the time-varying effect analysis. In this paper, pre-computing the time-varying effect caused by shrinkage and creep, found that the coupling effect have a negligible impact on the forces of vertical component during the construction of structures.Keywords: time-varying effect, coupling effect, vertical deformation, super high-rise structure
