Shrinkage and Creep of Mega Concrete Filled Steel Tubular Column in Super Tall Steel Building
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Bibliographic Details
| Author(s): |
Baoyi Fang
(Department of Geotechnical Engineering, Tongji University, Shanghai, China)
Xin Zhao (Tongji Architectural Design (Group) Co., Ltd. Shanghai, China) Juyun Yuan (Department of Geotechnical Engineering, Tongji University, Shanghai, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017 | ||||
| Published in: | IABSE Symposium Vancouver 2017 | ||||
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| Page(s): | 2629-2634 | ||||
| Total no. of pages: | 6 | ||||
| Year: | 2017 | ||||
| DOI: | 10.2749/vancouver.2017.2629 | ||||
| Abstract: |
Concrete filled steel tubular column (CFT) is popular in super tall building, since it has many advantages compared with ordinary steel or reinforced concrete system. CFT column is a combination of two traditional structural forms: steel tube and concrete filled in the hollow steel tube. It takes many researchers on the load carrying capacity of this composite member. However, not much has been done in relation to their time-dependent behavior especially for mega concrete filled steel tubular column employed in super tall steel buildings. In order to estimate the effects of shrinkage and creep of CFT column during the construction period, B3 model was applied to revealing the time-dependent behavior. The calculation results are compared with experiments. Then a real super tall steel building was employed to illustrate the shrinkage and creep of mega CFT column. The results show that the creep takes a significant effect on the column shortening during the construction. The value of shrinkage deformation is actually small and can be negligible in design. |
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| Keywords: |
shrinkage and creep supertall steel building concrete filled steel tubular column construction sequential analysis
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