结构工程师2011，Vol.27Issue(6)：14-21,8.
上海中心大厦考虑施工过程的竖向变形及差异分析与研究
Analysis and Research of Vertical Deformation Difference of Shanghai Tower Considering Construction Process
赖寒 1何志军 2丁洁民2
作者信息
- 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,上海200092
- 折叠
摘要
Abstract
The vertical deformation difference of a high -rise building was analyzed combining with Shanghai Tower,of which roof is 580 meters high, according to construction sequence and provisions about concrete creep and shrinkage in CEB-FIP 1990 code. In analysis,the factors such as creep and shrinkage of concrete, construction adjustment,fix time of outriggers, and preset of steel components and etc. were all considered. The results of analysis indicated that mega columns will reach the maximum vertical deformation of 123 mm,while reinforced concrete core shear wall will occurr the maximum vertical deformation of 141 mm on the 84' floor one year after the structure roof is constructed. The maximum vertical deformation difference between mega columns and shear walls will happen on 101th floor, which is about 22 mm. Meanwhile,more researches have been carried on in the field of calculation assumptions with effects on vertical deformation, and advices in accordance with engineering practice have been given. It was pointed out that internal force in outriggers could be reduced by delaying the fix time.关键词
超高层结构/竖向变形/收缩/徐变/施工过程/伸臂桁架/预调Key words
super high-rise building/vertical deformation/shrinkage, creep/construction process/outrigger/preset/引用本文复制引用
赖寒,何志军,丁洁民..上海中心大厦考虑施工过程的竖向变形及差异分析与研究[J].结构工程师,2011,27(6):14-21,8.
