Confining Transverse Reinforcements for Circular Composite Hollow RC Column with Inner Tube

Title
Confining Transverse Reinforcements for Circular Composite Hollow RC Column with Inner Tube
Author(s)
원덕희; 박우선; 서지혜; 임남형; 한택희
KIOST Author(s)
Won, Deokhee(원덕희)Park, Woo Sun(박우선)Seo, Jihye(서지혜)Han, Taek Hee(한택희)
Publication Year
2014-11-11
Abstract
The confining transverse reinforcement has arranged in plastic hinge region to resist the lateral load which increased the lateral confining effect in the substructure of bridge. Columns are increased the seismic performance through secure of the stiffness and ductility. Calculation method of confining transverse reinforcements is reported in AASHTO-LRFD specification. This specification is only proposed for sold RC column. In this reason, if this specification is applied for another column as composite column besides solid RC column, proper evaluation of column cannot be done. In particular, composite hollow RC column have limits for applying this specification. The composite hollow RC column is consist of transverse, longitudinal reinforcement, cover concrete, core concrete, and inner tube is inserted on hollow face. It makes the increase of ductility, strength, and stiffness in composite hollow RC column. In this paper suggested the modified equation for economics and rational design through investigation of displacement ductility when applied the existing specification at the composite hollow RC column. Moreover, parametric study is performed for evaluating the detail behavior. Using these results, calculation method of economic transverse reinforcements is proposed.of the stiffness and ductility. Calculation method of confining transverse reinforcements is reported in AASHTO-LRFD specification. This specification is only proposed for sold RC column. In this reason, if this specification is applied for another column as composite column besides solid RC column, proper evaluation of column cannot be done. In particular, composite hollow RC column have limits for applying this specification. The composite hollow RC column is consist of transverse, longitudinal reinforcement, cover concrete, core concrete, and inner tube is inserted on hollow face. It makes the increase of ductility, strength, and stiffness in composite hollow RC column. In this paper suggested the modified equation for economics and rational design through investigation of displacement ductility when applied the existing specification at the composite hollow RC column. Moreover, parametric study is performed for evaluating the detail behavior. Using these results, calculation method of economic transverse reinforcements is proposed.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25761
Bibliographic Citation
The Second Australasia and South-East Asia Structural Engineering and Construction Conference, pp.21 - 26, 2014
Publisher
International Structural Engineering Conference
Type
Conference
Language
English
Publisher
International Structural Engineering Conference
Related Researcher
Research Interests

Development of harbor structures,Analysis of harbor structures,Design of harbor structures,항만구조물개발,항만구조물해석,항만구조물설계

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