Local Buckling Behavior of Cold-Formed Channel Columns under Compression at Elevated Temperatures

압축을 받는 냉간성형 C-형강 기둥의 온도상승에 따른 국부좌굴 특성

  • 백태순 (경북대학교 대학원 건축공학과) ;
  • 강성덕 (영국 Sheffield 대학 건축학부) ;
  • 강문명 (경북대학교 건축학부)
  • Received : 2004.04.23
  • Accepted : 2004.07.15
  • Published : 2004.08.27

Abstract

This paper discusses the development of a computer program to analyze elastic local buckling stress based on Eurocode 3 Part 1.3 for the flange and web of cold-formed channel columns under compression at elevated temperatures. The high-temperature, stress-strain relationships of the steel used in this paper were determined according to Eurocode 3 Part 1.2. The critical temperatures and the elastic local buckling stresses of cold-formed channel columns under compression at elevated temperatures were analyzed with the computer program developed in this study. Analysis examples were given to show the applicability of the computer program.

본 연구는 Eurogode 3 Part 1.3을 근거하여 온도증가에 따른 압축을 받는 냉간성형 C-형강 기둥의 플랜지와 웨브의 탄성국부좌굴 응력 해석 프로그램을 개발하였다. 고온에서 응력-변형률 관계식은 Eurocode 3 Part 1.2를 근거하였다. 온도증가에 따른 압축을 받는 냉간성형 C-형강의 임계온도와 탄성국부좌굴 응력은 본 연구에서 개발한 컴퓨터 프로그램에 의해 해석하였고, 해석 예에 대한 비교 고찰을 하였다.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

References

  1. 냉간성형강 구조설계기준 및 해설 대한건축학회
  2. 한국공간구조학회 v.3 no.1 온도상승에 따른 Steel beam의 국부좌굴해석 장명웅;강성덕;강문명
  3. Transactions, ASCE v.112 Strength of thin steel compression flanges Winter, G.
  4. ASCE v.100 no.ST10 Local and Overall Buckling of Cold-formed Members Dewolf, J.T.;Pedkoz, T.;Winter, G.
  5. Struct. Div. ASCE v.104 no.11 Local, Distortional and Lateral Buckling of 1-Beams Hancock, G.J.
  6. International Journal for Numerical Methods in Engineering v.26 The collapse analysis of steel columns in fire using a finite strip mothod Olawale, A.O.;Plank, R.J.
  7. ASCE v.105 no.ST5 Local Buckling of cold-formaed steel members Kalyanaraman, V.
  8. Journal of Constructional Steel Research v.34 Local Buckling of Cold Formed Steel in Composite Structural Elements at Elevated Temperatures Uy, B.;Bradford, M.A.
  9. Thin-walled Structures v.41 Structural Behaviour of Cold-formed Thin-walled short Steel channel Columns at Elevated Temperatures. Part1: Experiments Feng, M.;Wang, Y.C.;Daives, J.M.
  10. Thin-walled Structures v.41 Structural Behaviour of Cold-formed Thin-walled short Steel channel columns at elevated Temperatures. Part2: Design Calculations and Numerical Analysis Feng, M.;Wang, Y.C.;Davies, J.M.
  11. Eurocode 3: Design of Steel Structures. Part 1.2: Structural Fire Design Commission of the European Communities
  12. Eurocode 3: Design of Steel Structures. Part 1.3: General Rules, Supplementary Rules for cold-formed Thin Gauge Members and Sheeting Commission of the European Communities
  13. BS 5950, code of Practice for Design in Simple and continuous construction: Hot Rolled Sections British Standards Institute
  14. Cold-Formed Steel Design Yu, W.W.
  15. Design of Metallic Cold-Formed Thin-Walled Members Ghersi, A.;Landolfo, R.;Mazzolani, F.M.
  16. Specification for the design of Cold-formed Steel Structural Members AISI
  17. The Local Buckling of RHS Member at Elevated Temperatures. VTT Research Notes 1672 Ala Qtimem, T.;Myllymaki, J.