Research on vertical deformation during construction of Shanghai World Financial Center
FAN Feng1, WANG Hua-jie1, ZHI Xu-dong1, HUANG Gang2, ZHU En-chun1, WANG Hong1
1.School of Civil Engineering,Harbin Institute of Technology, Harbin 150090, China;2.China Construction Third Engineering Bureau, Wuhan 430064, China
Abstract:
Shanghai World Financial Center is one of the highest buildings in the world, of which cumulation of vertical deformation during construction is significant and worth investigating. A refined finite element model was developed to conduct full-process analysis of construction of super-high rise buildings like Shanghai World Financial Center, in which the discrete analysis method of time-varying structures and age-adjusted effective modulus method were both used. In the finite element analysis, the whole construction process was divided into a series of stages, each with a structural system that is a part of the whole structure and with different material parameters, geometrical parameters, loading and boundary conditions. The whole construction process of Shanghai World Financial Center in consideration of creep of concrete was simulated successfully by using the finite element model and the analytical method developed. With respect to different construction stage, the total vertical deformation, inter-floor compression deformation and the relative deformation between the outer frame and the core-wall were obtained through the analysis. The comparison between the results from the stage-wise full-process analysis of construction with and without considering the creep and the results from the conventional analysis of the whole building under the total load from all self-weight and construction applied to the structure “in one go” shows that the cumulative effect on the deformation from the construction process and the creep effect need to be considered in analyzing the deformation of Shanghai World Financial Center, and the super-high rise buildings suchlike. Finally, the simulation results correlate well with the monitoring results-a proof of the feasibility and the validity of this paper.
Key words: Shanghai World Financial Center construction age-adjusted effective modulus method time-varying structure creep
DOI:10.11916/j.issn.1005-9113.2012.04.011
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Research on vertical deformation during construction of Shanghai World Financial Center
本站小编 哈尔滨工业大学/2019-10-23
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