高层混合结构基于模型分析的施工模拟方法*
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刘鑫，刘伟庆，王曙光，杜东升（南京工业大学土木工程学院， 南京 211816）［摘要］高层建筑考虑施工模拟可以更为准确地反映结构实际受力状态，通过理论分析、算例验证并结合实际超限高层项目，详细研究了高层建筑施工模拟的理论方法以及具体实现过程。分析表明：若不考虑施工模拟，对于轴压比大的构件轴力会偏小，而对于轴压比小的构件轴力会偏大；一次加载解的楼层最大竖向位移为实际楼层最大竖向位移的2倍左右，计算出的楼层最大竖向位移在结构顶层，而考虑施工模拟计算出的实际楼层最大竖向位移在中间层附近。研究结果为高层建筑结构分析时考虑其在施工过程中的实际受力情况提供了理论依据以及分析方法。［关键词］模型分析； 施工模拟； 竖向变形差； 高层结构中图分类号：TU974 文献标识码：A 文章编号：1002-848X(2013)05-0018-05Construction simulation of high-rise mixed structure based on model analysisLiu Xin, Liu Weiqing, Wang Shuguang, Du Dongsheng(Nanjing University of Technology, Nanjing 211816, China)Abstract: Construction simulation can reflect the state of stress of high-rise buildings more accurately. Theoretical methods and the specific process of construction simulation were analyzed by theoretical analysis, numerical example and the project of a high-rise building. The result shows that if do not consider the construction simulation, the components with larger axial compression ratio have the smaller axial force, but the components with the smaller ratio have the larger force. The maximum vertical displacement of one-time load model is twice of the actual vertical displacement, and it appears at the top of the floor. However, the location of the maximum vertical displacement by construction simulation is in the middle-floor of the structure. The results provide a theoretical basis and design method for considering the actual stress in the construction of high-rise buildings.Keywords: model analysis; construction simulation; different vertical displacement; high-rise structure*国家自然科学基金重大研究计划（90815017），国家自然科学基金（50908115，50608039）。参考文献［1］徐培福,王翠坤,肖从真. 中国高层建筑结构发展与展望［J］. 建筑结构, 2009, 39(9): 28-32.［2］喻永声. 考虑施工因素的高层建筑结构性态［J］. 计算结构力学及其应用, 1986,3(1): 67-73.［3］方永明,韦承基,戴国莹. 高层建筑结构施工模拟分析的剖析［J］. 上海铁道大学学报：自然科学版, 1997, 18(4): 50-54.［4］曹志远. 土木工程施工的施工力学与时变力学基础［J］.土木工程学报, 2001, 34(3): 41-46.［5］李浩,唐圣业,陈璞. 两种高层建筑施工模拟快速计算方案［J］. 工程力学, 2006, 23(7): 87-92.［6］周建龙,闫峰. 超高层结构竖向变形及差异问题分析与处理［J］. 建筑结构, 2007, 37(5): 82-90.［7］沈蒲生. 高层混合结构设计与施工［M］. 北京：机械工业出版社, 2008.
