Numerical Analysis of Top-Down Construction Method of High-Rise Buildings and its Effects on Substructures with their Corresponding Heights
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Bibliographic Details
| Author(s): |
Dhyaa A. H. Abualghethe
(School of Civil Engineering, Southeast University, Nanjing 210096, China)
Mu Baogang (School of Civil Engineering, Southeast University, Nanjing 210096, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 902-911 | ||||
| Total no. of pages: | 10 | ||||
| DOI: | 10.2749/nanjing.2022.0902 | ||||
| Abstract: |
The Top-Down construction method has been used widely in urban areas, particularly in high-rise buildings with basements. This paper presents the Nanjing Jinmao Plaza II Tower in Nanjing-China as a case study, which consists of 68 floors with a height of 283.6 m and five basements with a depth of 27.5 m. A numerical finite element simulation in PLAXIS 3D was performed to analyze the construction of soil excavation and basement structure and their corresponding heights. The study concluded that the effect of adding floors to the superstructure had little effect on the underground excavation process. Likewise, the condition of column piles is in different stages of construction. In view of that, this paper has analyzed and summarized construction guidelines for the top-down construction method to ensure safety, optimize design, and provide recommendations for this promising construction technique. |
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| Keywords: |
high-rise building displacement deformation top-down construction method deep foundation excavation
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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