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Authors
Affiliations
1 College of Civil Engineering, Chongqing University, Chongqing-400045, CN
2 College of Hydraulic and Civil Engineering, Shihezi University, Shihezi-832003, CN
Source
International Journal of Earth Sciences and Engineering, Vol 9, No 2 (2016), Pagination: 492-497
Abstract
With the huge depth-width ratio and uneven distribution of lateral stiffness and mass, the super highrise building could not meet the premise of rigidity-gravity ratio formula provided by Chinese code “Technical specification for concrete structures of tall building (JGJ3-2010)”, so it’s overall stability has been concerned widely. According to the principle of overall stability which is evaluated by rigidity-gravity ratio, the corrected method to rigidity-gravity ratio was deduced in this paper. The corrected method was used for an engineering example, its result was compared with P-delta effect calculation and buckling analysis, the consistent conclusions were obtained. The researches show that the calculation of rigidity-gravity ratio should consider the influence of actual gravity load and horizontal load distribution forms, the overall stability of super high-rise building should be comprehensively evaluated through the corrected rigidity-gravity ratio checking, P-delta effect calculation and Integral buckling analysis.
Keywords
Super High-Rise Building, Overall Stability, Rigidity-Gravity Ratio, P-Delta Effect, Buckling Analysis.
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