Deterioration in Strength of Stud Connectors in Composite Bridge Beams
Publication: Journal of Structural Engineering
Volume 116, Issue 12
Abstract
It is a common practice for the stud shear connections in composite bridge beams to be designed for both strength, to resist the ultimate loads, and for endurance, to resist the numerous applications of the serviceability loads. These two calculations are normally done independently of each other and the upper bound of the two connector distributions is used in design. This technique therefore assumes that there is no interaction between the strength of the shear connection and the fatigue loads. However, new experimental tests now show that the monotonic strength of stud shear connectors reduces under fatigue loads, and hence present design techniques do not simulate the actual behavior of the shear connection. A method is given of designing the shear connection to allow for the reduction in the monotonic strength due to fatigue loads that can also be used to estimate the residual strength of the shear connection in existing bridge beams.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Coughlan, C. G. (1984). “The stiffness of stud shear connections in composite beams subjected to static and fatigue loading.” Thesis presented to the National University of Ireland, at Cork, Ireland, in partial fulfillment of the requirements for the degree of Master of Engineering Science.
2.
Hallam, M. W. (1976). “The behaviour of stud shear connectors under repeated loading.” Res. Rept. 281, Sch. of Civ. Engrg., Univ. of Sydney, Sydney, Australia.
3.
Johnson, R. P., and Buckby, R. J. (1986). Composite structures of steel and concrete, Vol. 2: Bridges. Collins, London, United Kingdom.
4.
Lo, K. K. (1978). “Fatigue testing of stud shear connectors.” Thesis presented to the University of Melbourne, at Melbourne, Australia, in partial fulfillment of the requirements for the degree of Master of Engineering Science.
5.
Maeda, Y., Matsui, S., and Hiragi, H. (1983). “Effects of concrete‐placing direction on static and fatigue strengths of stud shear connectors.” Tech. Repts. of the Osaka Univ., Fac. of Engrg., Osaka Univ., Osaka, Japan.
6.
Mainstone, R. J., and Menzies, J. B. (1967). “Shear connectors in steel‐concrete composite beams for bridges. 1: Static and fatigue tests on push‐out specimens.” Concrete, 1(9), 291–302.
7.
Oehlers, D. J., and Foley, L. (1985). “The fatigue strength of stud shear connections in composite beams.” Proc. Inst. Civ. Engrs., 2(79), 349–364.
8.
Oehlers, D. J., and Coughlan, C. G. (1986). “The shear stiffness of stud shear connections in composite beams.” J. Construct. Steel Research, 6(4), 273–284.
9.
Oehlers, D. J., and Singleton, W. M. (1986). “The simulation of simply supported composite beams tested under fatigue loads.” Proc. Inst. Civ. Engrs., 2(81), 647–657.
10.
Oehlers, D. J., and Johnson, R. P. (1987). “The strength of stud shear connections in composite beams.” The Struct. Engr., 65B(2), 44–48.
11.
Oehlers, D. J., and Carroll, M. A. (1988). “Simulation of composite beams subjected to traffic loads.” Proc. Engrg. Found. Conf., ASCE, 450–459.
12.
Oehlers, D. J. (1990). “Methods of estimating the fatigue endurances of stud shear connections.” IABSE Periodica, Aug.
13.
Oehlers, D. J. (1989). “Splitting induced by shear connectors in composite beams.” J. Struct. Engrg., ASCE, 115(2), 341–362.
14.
Roderick, J. W., and Ansourian, P. (1976). “Repeated loading of composite beams.” Civ. Engrg. Trans. Inst. Engrs. Australia, 18(2), 109–116.
15.
Roik, K. (1988). “Composite road and railway bridges in Germany.” Proc. Engrg. Found. Conf., ASCE, 286–301.
Information & Authors
Information
Published In
Copyright
Copyright © 1990 ASCE.
History
Published online: Dec 1, 1990
Published in print: Dec 1990
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.