Analysis of vertical deformation during construction of the Shanghai World Financial Center

作者：Fan Feng; Wang Huajie; Zhi Xudong; Huang Gang; Zhu Enchun; Wang Hong; Shen Shizhao

来源：Journal of Building Structures, 2010, 31(7): 118-124.

• Age-adjusted effective modulus methods
• Analytical method
• Compression deformation
• Construction process
• Construction stages
• Creep effects
• Cumulative effects
• Discrete analysis
• Finite element analysis
• Finite element models
• Geometrical parameters
• Hybrid structure
• Material parameter
• Outer frame
• Process analysis
• Relative deformation
• Self-weight
• Structural systems
• Super high-rise building
• Time-varying structure
• Total load
• Vertical deformation

Shanghai World Financial Center is one of the highest buildings of the world, of which the 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 the 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 was part of the whole structure and with different material parameters, geometrical parameters, loading and boundary conditions. The whole construction process of the Shanghai World Financial Center in consideration of creep of concrete was simulated successfully 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. Comparison of the results form analysis of the stage-wise full-process 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 the Shanghai World Financial Center, and the super high-rise buildings suchlike. Finally, the calculated results correlate well with the monitoring results.

• 出版日期2010