Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Determination of the Fire Resistant Axial Load Ratio for Reinforced Concrete Columns

철근콘크리트 기둥의 내화 축력비 설정에 관한 연구

  • Received : 2014.03.06
  • Accepted : 2014.05.22
  • Published : 2014.06.30
⟨ Previous Next ⟩

Abstract

The purpose of this study is to determine the fire resistant axial load ratio for concrete columns as a concept of fire stress ratio which is the residual strength ratio of structural members when exposed to specific fire to the ordinary cold strength. It is necessary to set the typical cross section and boundary condition of concrete column member for reasonable evaluation of the concrete structural members. As a result of the fire resistance test for the variables corresponding to the size of section, axial force ratio and slenderness ratio based on the intact axial force with no eccentricity, it is considered that 0.5 and 0.45 axial forces are proper for less than 17 slenderness ratio and over 17 slenderness ratio respectively.

Keywords

Acknowledgement

Supported by : 한국건설기술연구원

References

  1. A. H. Buchanan, "Structural Design for Fire Safety", University of Canterbury, New Zealand, p.p.127-168, 2001.
  2. 여인환, 표준화재에 노출된 철근콘크리트 기둥의 하중비 설정 연구, 박사학위논문, 서울시립대학교, 2012.
  3. Eurocode 3, Design of Steel Structures - Part 1-2, General rules actions - Structural fire design, CEN(European Comittee for Standardization), 2002.
  4. 황규재, 윤성기, 열전달 해석을 이용한 CFT기둥의 내화피복 두께 설정에 관한 연구, 대한건축학회논문집, 제29권 제6호, p.p.65-72, 2013.
  5. Eurocode 3, Design of Concrete Structures - Part 1-2, General rules actions - Structural fire design, CEN(European Comittee for Standardization), 2002.
  6. 한국건설기술연구원, 화재응력비를 고려한 콘크리트 구조 부재의 내화성능 평가기술 개발, 2013.
  7. 국토해양부, 건축구조기준, 2009.
  8. 국토해양부, 콘크리트구조기준, p.p.104-105, 2012.
  9. 한국표준협회, KS F 2257-7 : 건축 부재의 내화시험 방법 - 기둥의 성능 조건, 2005. 7.
  10. 한국표준협회, KS F 2257-1 : 건축 부재의 내화시험 방법 - 일반 요구 사항, 2005. 7.