A Study on the Buckling Behavior of the Web of Box Girders

상자형 복부판의 좌굴 거동에 관한 연구

  • 이상우 (영남대학교 토목공학과) ;
  • 권영봉 (영남대학교 토목공학과)
  • Published : 1997.03.30

Abstract

The buckling behavior of the web of steel girders are largely dependent on the size and the location of stiffeners and the restraining effect of top and bottom flanges. Elastic and inelastic buckling analyses based or the Spline Finite Strip Method were executed to study the stiffening effect of the longitudinal stiffener on the web of box girders and to find how the top and bottom flanges had effects on the web, where geometric boundary conditions were limited by both hinged, both fixed and the flange sections. The basic assumption for the longitudinal end boundary conditions was that the vertical stiffeners had the rigidity enough to force nil deflection line on the web panel so that the junction line between web and vertical stiffener was assumed to be hinged boundary conditions. The provisions on the longitudinal stiffener of the plate and box girders of the Korean Standard Highway Bridge Specifications(1995) and AASHTO Specifications(1994 LRFD) were compared with the results obtained numerically for the various longitudinal stiffener size of box girders. Simple equations and design curves for the longitudinal stiffener of the web were proposed for the practical use.

Keywords

Acknowledgement

Supported by : 영남대학교

References

  1. Journal of the Structural Division, ASCE v.104 no.ST4 Strength of Longitudinally Stiffened Plate Girders Cooper, Peter B.
  2. Journal of the Structural Division, ASCE v.106 no.ST12 Proposed Specifications for Steel Box Girder Bridges Wolchuk, Roman
  3. Journal of the Structural Division, ASCE v.104 no.ST4 Theory and Design of Longitudinally Stiffened Plate Girders Task Committee on Longitudinally Stiffened Plate girders of the ASCE-AASHTO Committee on Flexural Members of the Committee on Metals of the Structural Division
  4. TMCP강을 사용한 판형강교량의 설계해석 및 안정성검토, 서울대학교 공학연구소 연구보고서
  5. Proceedings, Institution of Civil Engineers v.21 no.Jan. The Buckling of a Plate Girder Web under Pure Bending when Reinforced by a Single Logitudinal Stifferener Rockey, K.C.;Leggett, D.M.A.
  6. Bending and Shear Strength of Longitudinally Stiffened Plate Girders, Fritz Engineering Laboratory Report No. 304.6 Cooper, Peter B.
  7. Welding Research Council Bulletin no.118 Fatigue Tests of Large-Size Welded Plate Girders Yen, B.T.;Mueller, J.A.
  8. Steel Structures Gaylord, Charles N.;Stallmeyer, James E.
  9. Theory of Box Girders John Wiley & Sons
  10. Proc. ASCE v.94 no.EM1 Elastic Buckling of Plate Girders from Pure Bending Yonezawa, H.;Mikami, I.
  11. Steel Structures Salmon, Charles G.;Johnson, John E.
  12. Journal of the Structural Division, ASCE v.108 no.ST6 Buckling of Stiffened Webs by Local Edge Loads Graves Smith, Tom R.;Gierlinski, Jacek T.
  13. Thin-Walled Structures v.7 Inelastic Buckling Analyses of Beams, Columns and Plates Using the Spline Finite Strip Method Lau, S.C.;Hancock, G.J.
  14. Journal of Constructional Steel Research v.6 no.1 Inelastic Buckling of Single Angle, Tee and Double Angle Structs Kitipornchai, S.;Lee, L.H.
  15. 한국강구조학회 학술발표대회 H-형강 및 각형강관의 잔류응력에 관한 연구 김욱선;권영봉
  16. AASHTO LRFD Bridge Design Specifications
  17. Proc, IABSE Colloquium The Ultimate Bending Moment for Plate Girders Cooper, Peter B.
  18. 도로교 표준시방서 대한민국 건설부
  19. Engineering Journal Buckling of Web in Unsymmetric Plate Girders Frank, Karl H.;Helwig, Todd A.