Strength of Plate Girder Web Panels under Pure Shear
Publication: Journal of Structural Engineering
Volume 124, Issue 2
Abstract
Nonlinear analyses have been conducted on three-dimensional finite element models of transversely stiffened plate girder web panels (without longitudinal stiffeners) subjected to pure shear, including the effects of initial out-of-flatness. Currently, the design equations for shear in plate girder web panels in the American Association of State Highway and Transportation Officials (AASHTO) and the American Institute of Steel Construction (AISC) specifications account for elastic shear buckling strength and postbuckling strength separately and combine these resisting capacities based on the aspect ratio of the web panels. Although equations in these specifications predict the overall shear strength with reasonable accuracy, they often underestimate the elastic shear buckling strength, due to an underestimation of the rigidity at the flange-web juncture, and often overestimate the postbuckling strength of certain web panels, as a result of excluding the effect of out-of-plane bending stresses. Based on a parametric study of numerical results, new design equations are proposed for the determination of ultimate shear strengths of web panels. To validate these equations, ultimate shear strengths computed from the equations are compared with existing experimental data.
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References
1.
American Association of State Highway and Transportation Officials LRFD bridge design specifications, 1st Ed. (1994). AASHTO, Washington, D.C.
2.
American Association of State Highway and Transportation Officials standard specifications for highway bridges, 11th Ed. (1973). AASHTO, Washington, D.C.
3.
American Association of State Highway and Transportation Officials standard specifications for highway bridges, 16th Ed. (1996). AASHTO, Washington, D.C.
4.
American Institute of Steel Construction specification for structural steel buildings, allowable stress design and plastic design, 9th Ed. (1989). AISC, Chicago, Ill.
5.
American Institute of Steel Construction specification for the design, fabrication, and erection of structural steel for buildings, 6th Ed. (1963). AISC, New York, N.Y.
6.
Basler, K., and Thürlimann, B. (1959). “Plate Girder Research.”Proc., AISC Nat. Engrg. Conf., American Institute of Steel Construction, New York, N.Y.
7.
Basler, K. (1961a). “New provisions for plate girder design.”Proc., AISC Nat. Engrg. Conf., American Institute of Steel Construction, New York, N.Y., 65–74.
8.
Basler, K.(1961b). “Strength of plate girders under combined bending and shear.”J. Struct. Div., ASCE, 87(2), 181–197.
9.
Basler, K.(1963). “Strength of plate girders in shear.”Trans., ASAE, 128(2), 683–719.
10.
Bradford, M. A.(1996). “Improved shear strength of webs designed in accordance with the LRFD specification.”Engrg. J., 33(3), 95–100.
11.
“Bridge Welding Code: A Joint Publication of AASHTO and American Welding Society.” (1996). ANSI/AASHTO/AWS D1.5-96, AASHTO and AWS, Washington, D.C.
12.
Chern, C., and Ostapenko, A. (1969). “Ultimate strength of plate girder under shear.”Rep. 328.7, Fritz Engineering Lab., Lehigh University, Bethlehem, Pa.
13.
“Code of Practice for Design of Steel Bridges.” (1982). BS 5400, Part 3, British Standard Institution.
14.
Cooper, P. B. (1965). “Bending and shear strength of longitudinally stiffened plate girders.”Rep. 304.6, Fritz Engineering Laboratory, Lehigh University, Bethlehem, Pa.
15.
Konishi, I. (1965). “Theories and experiments on the load carrying capacity of plate girders.” Rep. Prepared for Western Japan Research Society for Bridges, Steel Frame and Welding, Osaka, Japan (in Japanese).
16.
Lee, S. C., Davidson, J. S., and Yoo, C. H.(1996). “Shear buckling coefficients of plate girder web panels.”Comp. and Struct., 59(5), 789–795.
17.
Lyse, I., and Godfrey, H. J.(1935). “Investigation of Web Buckling in Steel Beams.”Trans., ASAE, 100, 789–795.
18.
Marsh, C., Ajam, W., and Ha, H.(1988). “Finite element analysis of postbuckled shear webs.”J. Struct. Engrg., ASCE, 114(7), 1571–1587.
19.
MSC/NASTRAN Reference Manual: Version 68. (1994). Vol. 1-3, The McNeal-Schwindler Corp., Los Angeles, Calif.
20.
Nishino, F., and Okumura, T. (1968). “Experimental investigation of strength of plate girders in shears.”Proc., 8th Cong. of the Int. Assoc. of Bridge and Struct. Engrg., New York, N.Y.
21.
Porter, D. M., Rocky, K. C., and Evans, H. R.(1975). “The collapse behaviors of plate girders loaded in shear.”Struct. Engr., 53(9), 313–325.
22.
Rocky, K. C., Evans, H. R., and Porter, D. M.(1978). “A design method for predicting the collapse behaviour of plate girders.”Proc., Instn. Civ. Engrs., Part 2, 65, 85–112.
23.
Schueller, W., and Ostapenko, A. (1968). “Static tests on unsymmetrical plate girders main test series.” Fritz Engineering Laboratory Report, No. 328.6, Bethlehem, Pa.
24.
Sharp, M. L., and Clark, J. W.(1971). “Thin Aluminum Shear Web.”J. Struct. Div., ASCE, 97(4), 1021–1038.
25.
Structural Stability Research Council guide to stability design criteria for metal structures, 4th Ed. (1988). T. Galambos, ed., John Wiley and Sons, New York, N.Y.
26.
Timoshenko, S. P., and Gere, J. M. (1961). Theory of elastic stability, 2nd Ed., McGraw-Hill Book Co., Inc., New York, N.Y.
27.
Wagner, H. (1931). “Flat sheet metal girder with very thin metal web.”Tech. Memo. 604-606, National Advisory Committee for Aeronautics (NACA).
28.
Wilson, J. M. (1886). “On specifications for strength of iron bridges.”Trans., ASAE, 15(I), 401–403 and 489–490.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 124 • Issue 2 • February 1998
Pages: 184 - 194
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Feb 1, 1998
Published in print: Feb 1998
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