Stiffness Requirements for Longitudinally Stiffened Box-Girder Flanges
Publication: Journal of Structural Engineering
Volume 127, Issue 6
Abstract
This paper presents an optimum design of longitudinal stiffeners for box-girder compression flanges. The buckling behavior of longitudinally stiffened compression flanges has drawn considerable interest from early pioneers of theoretical mechanics, as illustrated by Timoshenko and Gere and Bleich. The longitudinally stiffened compression plate structural members generally render an economical structure by efficiently proportioning the material to resist the induced compressive stresses. This study presents results that are based on 3D finite-element analysis of several hundred hypothetical compression flange models stiffened by varying numbers of longitudinal stiffeners with realistic dimensions. The thickness of the compression flange t was varied from 0.50 to 2.50 in. (from 12.7 to 63.5 mm), the number of longitudinal stiffeners n was varied from 1 to 4, and the aspect ratio of the plate panel α was varied from 1 to 5. Two different plate transverse slenderness ratios w/t were analyzed. Analytical data were reduced using nonlinear regression analysis to a simplified design equation suitable for practicing engineers. Several example problems are given to illustrate the use of the regression equation. Comparative analyses are also made to demonstrate the versatility and reliability of the analytical study conducted.
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References
1.
American Association of State Highway Officials (AASHO). ( 1965). Standard specifications for highway bridges, 9th Ed., Washington, D.C.
2.
American Association of State Highway Transportation Officials (AASHTO). ( 1994). LRFD Bridge design specifications, 1st Ed., Washington, D.C.
3.
American Association of State Highway Transportation Officials (AASHTO). ( 1996). Standard specifications for highway bridges, 16th Ed., Washington, D.C.
4.
American National Standards Institute (ANSI), American Association of State Highway Transportation Officials (AASHTO), American Welding Society (AWS). ( 1996). “Bridge welding code.” ANSI/AASHTO/AWS D1.5-96, Joint Publ. of AASHTO, Washington, D.C., and AWS, Miami.
5.
Bleich, F. ( 1952). Buckling strength of metal structures, McGraw-Hill, New York.
6.
British Standards Institution (BSI). ( 1982). “Steel, concrete and composite bridges.” BS 5400, Part 3, Code of practice for design of steel bridges, London.
7.
Chatterjee, S., and Dowling, P. ( 1975). “Proposed design rules for longitudinal stiffeners in compression flanges of box girders.” CESLIUC Rep. BG40, Civ. Engrg. Dept., Imperial College, London.
8.
Chatterjee, S., and Dowling, P. ( 1976). “The design of box girder compression flanges.” Paper 8, Proc., Int. Conf. on Steel Plate Struct., Crosby, Lockwood Staples, London, 196–228.
9.
Clinton, H., Joehnk, G., and Petzold, E., III. ( 1986). “Design examples for steel box girders.” Rep. No. FHWA-TS-86-209, Federal Highway Administration, Washington, D.C.
10.
Davidson, J. S., and Yoo, C. H. (1996). “Local buckling of curved I-girder flanges.”J. Struct. Engrg., ASCE, 122(8), 936–947.
11.
DIN 4114. (1978). Beulsicherheitsnachweise fur Platten, DASt Richtline 12, Deutscher Ausschuss fur Stahlbau, Draft, Berlin (in German).
12.
Dwight, J., et al. ( 1975). “A possible design procedure for stiffened compression panels.” Steel Constr., Sydney, Australia, 9(3).
13.
Dwight, J., and Little, G. ( 1974). “Stiffened steel compression panels—A design approach.” Tech. Rep. CUED (C-Struct), TR. 38, Dept. of Engrg., University of Cambridge, Cambridge, U.K.
14.
Dwight, J., and Little, G. ( 1976). “Stiffened steel compression flanges—A simple approach.” The Struct. Engr., London, 54(12), 501–509.
15.
Dwight, J., Little, G., and Rogers, N. ( 1973). “An approach to stiffened steel compression panels.” Tech. Rep. CUED (C-Struct) TR. 32, Dept. of Engrg., University of Cambridge, Cambridge, U.K.
16.
European Convention for Constructional Steelwork (ECCS). ( 1976). “Manual on the stability of steel structures.” Introductory report, 2nd Ed., 2nd Int. Colloquium on Stability-ECCS, Tokyo.
17.
Fan, Z., and Helwig, T. A. (1999). “Behavior of steel box girders with top flange bracing.”J. Struct. Engrg., ASCE, 125(8), 829–837.
18.
Ford, E. M. ( 2000). “Stiffness requirements for longitudinally stiffened compression flanges.” MS thesis, Auburn University, Auburn, Ala.
19.
Galambos, T. V., ed. ( 1998). Structural Stability Research Council guide to stability design criteria for metal structures, 5th Ed., Wiley, New York.
20.
Horne, M., and Narayana, R. ( 1975). “An approximate method for the design of stiffened steel compression panels.” Proc., Instn. of Civ. Engrs., London, Part 2, September, 501–514.
21.
Horne, M., and Narayana, R. ( 1976). “Ultimate strength of stiffened panels under uniaxial compression.” Paper 1, Proc., Int. Conf. on Steel Plate Struct., Crosby, Lockwood Staples, London, 1–23.
22.
Inquiry into the Basis of Design and Method of Erection of Steel Box Girder Bridges. ( 1973a). “Appendix I, Interim design and workmanship rules, Part III: Basis for the design rules and for the design of special structures not within the scope of Part I: Loading and general design requirements, Part II: Design rules.” Report of the Committee, Her Majesty's Stationery Ofc., London.
23.
Inquiry into the Basis of Design and Method of Erection of Steel Box Girder Bridges. ( 1973b). “Appendix I, Interim design and workmanship rules, Part IV: Materials and workmanship.” Report of the Committee, Her Majesty's Stationery Ofc., London.
24.
Inquiry into the Basis of Design and Method of Erection of Steel Box Girder Bridges. ( 1974). “Appendix I, Interim design and workmanship rules, Part III: Basis for the design rules and for the design of special structures not within the scope of Part II.” Report of the Committee, Her Majesty's Stationery Ofc., London.
25.
Lee, S. C., and Yoo, C. H. (1998). “Strength of plate girder web panels under pure shear.”J. Struct. Engrg., ASCE, 124(2), 184–194.
26.
Little, G. ( 1976). “Stiffened steel compression panels—Theoretical failure analysis.” The Struct. Engr., London, 54(12), 489–500.
27.
Mattock, A. H., et al. ( 1967). “Criteria for design of steel concrete composite box girder highway bridges, Appendix B.” Report of the Committee (unpublished).
28.
MSC/NASTRAN Reference Manual. (1994). Version 68, Vol. 1–3, The McNeal-Schwindler Corp., Los Angeles.
29.
Timoshenko, S., and Gere, J. ( 1961). Theory of elastic stability, 2nd Ed., McGraw-Hill, New York.
30.
Wolchuk, R., and Mayrbaurl, R. M. ( 1980). “Proposed design specifications for steel box girder bridges.” Rep. No. FHWA-TS-80-205, Federal Highway Administration, Washington, D.C.
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Received: Mar 24, 2000
Published online: Jun 1, 2001
Published in print: Jun 2001
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