DEFORMATION MODELING ANALYSIS REFLECTING THE INFLUENCE OF FOUNDATION IN NEW CCTV HEADQUARTERS
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摘要: CCTV新台址主楼的特殊造型设计使得施工过程结构的变形发展异常复杂。在施工过程中,上部结构除了在自身荷载作用下产生变形外,还会随着地基沉降而发生变形。针对该主楼结构含基础的一体化建模,对地基部分考虑群桩效应的建模方法以及参数取值给予介绍,并对施工过程结构的变形进行分析,其结果为评价两塔楼水平变形以及大悬臂的垂直变位提供了依据。Abstract: For the new CCTV headquarters, the deformation produced due to not only the loading affection resulting from itsinclined towers and cantilevered structure system but also the foundation settlement must be estimated to determine itsconstruction and erection procedure. It is focused on the integrative modeling analysis which includes the influence offoundation settlement and the interaction of pile group. Besides, the deformations calculated from FE model and measuredfrom actual project are compared, which shows that this analysis method can simulate the actual condition quite well.
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Key words:
- integrative modeling method /
- pile foundation /
- settlement /
- interaction of pile group
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.JGJ 94-94?建筑桩基技术规范 .中央电视台新台址建设工程(A 区) 岩土工程勘察报告. 北京市勘察设计研究院, 2004 .检测报告TC -DJ -P -2005 -008.冶金工业工程质量监督总站检测中心, 2005 .中央电视台新台址建设工程 A 区静载试验. 国家建筑工程质量监督检测中心, 2005 .史佩栋. 使用桩基工程手册. 北京: 中国建筑工业出版社, 1999 .CCTV 主楼施工过程监测报告(系列). 中国建筑科学研究院建筑结构研究所, 2006
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