Behavior of an Internally Confined Hollow Reinforced Concrete Column with a Polygonal Cross-Section SCIE SCOPUS

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Title
Behavior of an Internally Confined Hollow Reinforced Concrete Column with a Polygonal Cross-Section
Author(s)
Kim, Sungwon; Hong, Hyemin; Han, Taek Hee
KIOST Author(s)
Kim, Sungwon(김성원)Han, Taek Hee(한택희)
Alternative Author(s)
김성원; 홍혜민; 한택희
Publication Year
2021-05
Abstract
The new supporting structure, internally confined hollow reinforced concrete (ICH RC), was suggested by former researchers. It maintains the material saving effect, which is the advantage of the hollow concrete structure, and it solves the brittle fracture problem of the inner wall by the inner steel pipe to make it into the 3-axis confinement state. However, until now, its design and analysis model has been limited to a circular cross-section. In this study, to expand the applicability, research and development of an ICH RC structure with a polygonal cross-section were performed. The material model was developed by defining the constraint stress in the members of the concrete and deriving a reasonable stress-strain relationship. For the column model, it was developed to predict the behavior of the polygonal ICH RC columns by analyzing the axial force-moment correlation, moment-curvature, and lateral force-displacement relationship. Each model was verified not only by comparing with the results of previous experiments but also by analyzing the results according to parameters. The maximum load and ultimate displacement values through the developed model showed the difference with the experimental results within 6% of mean error. It was verified that the proposed analytical model reasonably reflects the behavior of actual columns.
ISSN
2076-3417
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41300
DOI
10.3390/app11094302
Bibliographic Citation
APPLIED SCIENCES-BASEL, v.11, no.9, 2021
Publisher
MDPI
Subject
PERFORMANCE
Keywords
confined concrete; polygonal cross-section; ICH RC; concrete column
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
Related Researcher
Research Interests

Ocean Engineering,Structural Engineering,Renewable Energy,해양공학,구조공학,신재생에너지

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