摘要
为研究高层钢管混凝土框架-混凝土核心筒混合结构施工过程和使用过程中的竖向变形差,采用结构分析软件SAP2000,调用非线性分析模块,结合典型混合结构工程实例进行了施工过程及使用过程的全过程模拟分析,分析模型中考虑了混凝土的收缩和徐变,研究结果表明,考虑混凝土收缩和徐变的施工全过程模拟接近于实际工程的受力情况,分析结果有助于施工全过程监测控制以及在施工过程中的竖向构件下料长度的预调整。
This paper presented a study on the vertical differential deformation of a high rise CFST frame-RC core wall mixed structure in construction stage and service stage, utilizing nonlinear module of SAP2000. A whole-stage simulation including construction stage and service stage of a typical project was carried out. Shrinkage and creep of concrete were taken into account in the numerical model. Results from the analysis indicate that the predicted stress stale of structure from simulation considering shrinkage and creep of concrete has a good agreement with that in the actual situation. The results from this study provide a useful tool for monitoring the whole construction process and adjusting fabrication length of vertical components during the construction.
出处
《建筑钢结构进展》
北大核心
2014年第1期58-64,共7页
Progress in Steel Building Structures
基金
中国博士后科学基金(20110490417)
关键词
钢管混凝土框架
混凝土核心筒
混合结构
收缩和徐变
全过程模拟
竖向变形差
concrete filled steel tube（CFST） frame
reinforced concrete （RC） core wail
mixed structure
shrinkage and creep
whole-stage simulation
vertical differential deformation
