Optimum confining effect in steel composite hollow RC column with inner tube under compressive load
SCIE
SCOPUS
Cited 10 time in
WEB OF SCIENCE
Cited 12 time in
Scopus
-
Title
- Optimum confining effect in steel composite hollow RC column with inner tube under compressive load
-
Author(s)
- Won, Deok Hee; Kim, Seungjun; Han, Taek Hee; Jang, In Sung; Kang, Young Jong
- KIOST Author(s)
- Han, Taek Hee(한택희); Jang, In Sung(장인성)
-
Alternative Author(s)
- 원덕희; 한택희; 장인성
-
Publication Year
- 2014
-
Abstract
- An internally confined hollow reinforced concrete (ICH RC) column offers strong and durable confinement by the reinforcement of the inner tube. When the concrete in an ICH RC column experiences axial pressure, an inward radial pressure is produced by the arching action. This radial pressure is resisted by the concrete and the inner tube. Previous research considered the outer pressure and inner pressure to be equal. However, the inner pressure acting on the inner tube is lower because it is partially resisted by the concrete. Therefore, to determine the optimum confining effect on the concrete by the confining condition, it was necessary to determine reasonable values for the inward and outward confining stress in ICH RC columns. In the current study, the confining effects of concrete in an ICH RC column were investigated and evaluated using finite-element (FE) analysis. Parametric studies were performed to determine the factors affecting the confinement of the core concrete in an ICH RC column. The hollow ratio was found to be the main factor affecting the internal confining stress in an ICH RC column. Using the results of FE analysis, estimation equations for the internal confining stress and a new modified equation for the failure condition were developed.
-
ISSN
- 0024-9831
-
URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/2971
-
DOI
- 10.1680/macr.13.00304
-
Bibliographic Citation
- MAGAZINE OF CONCRETE RESEARCH, v.66, no.9, pp.433 - 446, 2014
-
Publisher
- ICE PUBLISHING
-
Subject
- CONCRETE COLUMNS; STRENGTH; CONFINEMENT; MODEL; BEHAVIOR
-
Type
- Article
-
Language
- English
-
Document Type
- Article
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.