Shrinkage and Creep of Mega Concrete Filled Steel Tubular Column in Super Tall Steel Building-Reference-Cited by-同舟云学术

Shrinkage and Creep of Mega Concrete Filled Steel Tubular Column in Super Tall Steel Building

Published:2017 Issue: Volume: Page:
ISSN:2221-3783
Container-title:IABSE Symposium, Vancouver 2017: Engineering the Future
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Author:

Fang Baoyi¹,Zhao Xin²,Yuan Juyun¹

Affiliation:

1. Department of Geotechnical Engineering, Tongji University, Shanghai, China

2. Tongji Architectural Design (Group) Co., Ltd. Shanghai, China

Abstract

<p>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.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

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