Resistance of Welded Aluminum Alloy Plate Girders to Shear and Patch Loading
Publication: Journal of Structural Engineering
Volume 125, Issue 8
Abstract
Aluminum alloys are used in a variety of structural engineering applications, such as transportable and lightweight bridges, due to their high strength-to-weight ratio and durability. However, the heat of welding may reduce their strength significantly and necessitate the inclusion of strength reduction factors in design calculations. Theoretical procedures for predicting ultimate shear and patch resistance, which include material strength reduction factors to allow for welding, are now incorporated in BS8118, the code of practice for aluminum structures, and EC9, the Eurocode of practice for aluminum structures. However, when compared with available test results, theoretical predictions in accordance with BS8118 and EC9 appear unduly conservative. Experimental and theoretical studies of the behavior and strength of welded aluminum alloy plate girders, subjected to shear and patch loading, are reviewed and discussed. Theoretical predictions of the ultimate resistance, based on modified and developed theories, are compared and show consistent and improved correlation with experimental results.
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References
1.
Bhogal, A., Davies, A. W., and Roberts, T. M. (1997). “Performance testing of full size transportable bridge girders.” Res. Rep., University of Wales Cardiff, U.K.
2.
“Design of aluminium structures.” (1997). prENV 1991-1, CEN/TC 250/SC9, Eurocode 9, Part 1.1: General rules, European Committee for Standardisation, Brussels.
3.
Elgaaly, M. (1983). “Web design under compressive edge loads.” Engrg. J., 4th Quarter, American Institute of Steel Construction, 153–171.
4.
Evans, H. R., and Burt, C. A. ( 1990). “Ultimate load determination for welded aluminium plate girders.” Aluminium structures: Advances, design and construction, R. Narayanan, ed., Elsevier Science, London, 70–80.
5.
Evans, H. R., and Lee, A. Y. N. (1995). “An appraisal, by comparison with experimental data, of new design procedures for aluminium plate girders.” Proc., Instn. Civ. Engrs., Structures and Buildings, London, 110 (February), 34–49.
6.
Evans, H. R., and Moussef, S. (1988). “Design aid for plate girders.” Proc., Instn. Civ. Engrs., Part 2, London, March, 89–104.
7.
Granath, P. (1997). “Behaviour of slender plate girders subjected to patch loading.” J. Constr. Steel Res., 42(1), 1–19.
8.
Höglund, T. (1971). “Simply supported long thin plate I–girders without web stiffeners subjected to distributed transverse load.” Proc., Des. of Plate and Box Girders for Ultimate Strength Colloquium, IABSE, London, 85–97.
9.
Höglund, T. (1995). “Strength of steel and aluminium plate girders—Shear buckling and overall buckling of plane and trapezoidal webs—Comparisons with tests.” Tech. Rep. 1995:4—Steel Struct., Dept. of Struct. Engrg., Royal Institute of Technology, Stockholm.
10.
Höglund, T. (1996). “Shear buckling resistance of steel and aluminium plate girders.” Proc., Bicentenary Conf. on Thin-Walled Struct., University of Strathclyde, U.K., December, 1–18.
11.
Khan, M. Z., Johns, K. C., and Hayman, R. ( 1977). “Buckling of plates with partially loaded edges.” Proc., ASCE, 103(ST3), March, 547–558.
12.
Largerqvist, O., and Johansson, B. (1996). “Resistance of I-girders to concentrated loads.” J. Constr. Steel Res., 39(2), 87–119.
13.
Lee, A. Y. N. ( 1994). “Collapse behaviour of aluminium girders.” PhD thesis, University of Wales College of Cardiff, U.K.
14.
Lee, A. Y. N., and Davies, A. W. (1995). “Strength of an Al-Zn-Mg (7019) aluminium alloy girder panel subjected to patch loading.” Res. Rep., University of Wales Cardiff, U.K.
15.
Newark, A. C. B. ( 1997). “Strength of tapered web aluminium plate girders under shear and patch loading,” PhD thesis, University of Wales Cardiff, U.K.
16.
Porter, D. M., Rockey, K. C., and Evans, H. R. (1975). “The collapse behaviour of plate girders loaded in shear.” The Struct. Engrg., London, August, 313–326.
17.
Roberts, T. M. ( 1983). “Patch loading in plate girders.” Plated structures: Stability and strength, R. Narayanan, ed., Elsevier Science, London, 77–102.
18.
Roberts, T. M., and Newark, A. C. B. (1997). “Strength of webs subjected to compressive edge loading.”J. Struct. Engrg., ASCE, 123(2), 176–183.
19.
Rockey, K. C., and Evans, H. R. (1980). “An experimental study of the ultimate load capacity of welded aluminium plate girders loaded in shear.” Res. Rep., University of Wales College of Cardiff, U.K.
20.
Rockey, 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, London, 65, March, 85–112.
21.
“Structural use of aluminium.” (1991). BS8118, Part 1, British Standards Institution, Milton Keynes, U.K.
22.
Swan, R. (1997). “The light touch.” Bridge Des. and Engrg., 8, 57–59.
23.
Winney, M. (1998). “A 30 metre bridge in 30 minutes.” New Civ. Engrg., April 2, 1998, 23–24.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 125 • Issue 8 • August 1999
Pages: 930 - 938
History
Received: Oct 2, 1998
Published online: Aug 1, 1999
Published in print: Aug 1999
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