Behavior and Strength of Headed Stud–SFRCC Shear Connection. II: Strength Evaluation
Publication: Journal of Structural Engineering
Volume 142, Issue 2
Abstract
This paper is the second part of a two-part report describing the behavior of headed stud–SFRCC (steel-fiber-reinforced cementitious composite) shear connection. The first paper presented an experimental study of headed stud–SFRCC shear connections, whereas this paper focuses on the strength evaluation of those shear connections. This paper first presents a finite-element model of the connections, which was validated using the experimental results. An updated empirical equation considering the contribution made by the weld collar is proposed to estimate the shear strength of a single headed stud. Finite-element models were developed to evaluate the shear strength of each stud in a densely arranged group of headed studs. The results reveal that the interaction between headed studs mitigated the confining effect on studs, and the studs thus sustained less shear strength than those with larger stud spacing. Studs placed in different positions sustain different shear forces, and this difference is greater when smaller stud spacing is used. Formulas with which to estimate the reduction in the strength of headed studs in SFRCC are suggested according to a parametric study of the finite-element analysis.
Get full access to this article
View all available purchase options and get full access to this article.
References
ABAQUS version 6.10 [Computer software]. Waltham, MA, Dassault Systemes.
An, L., and Cederwall, K. (1996). “Push-out tests on studs in high strength and normal strength concrete.” J. Constr. Steel Res., 36(1), 15–29.
Badie, S. S., Tadros, M. K., Kakish, H. F., Splittgerber, D. L., and Baishya, M. C. (2002). “Large shear studs for composite action in steel bridge girders.” J. Bridge Eng., 195–203.
Doinghaus, P., Goralski, C., and Will, N. (2003). “Design rules for composite structures with high performance steel and high performance concrete.” Int. Conf. on High Performance Materials in Bridges, ASCE, Reston, VA, 139–149.
Hegger, J., Feldmann, M., Rauscher, S., and Hechler, O. (2006). “Load-deformation behavior of shear connectors in high strength concrete subjected to static and fatigue loading.” IABSE Symp. Rep., Vol. 92, International Association for Bridge and Structural Engineering, Zurich, Switzerland, 17–24.
Hegger, J., Sedlacek, G., Döinghaus, P., Trumpf, H., and Eligehausen, R. (2001). “Studies on the ductility of shear connectors when using high-strength steel and high-strength concrete.” Int. Symp. on Connections between Steel and Concrete, RILEM Publications SARL, Cedex, France, 1025–1045.
Johnson, R. P. and Oehlers, D. J. (1981). “Analysis and design for longitudinal shear in composite T-beams.” ICE Proc., 71(4), 989–1021.
Kaneko, Y., Mihashi, H., Kirikoshi, K., and Abe, T. (2000). “Simplified uniaxial constitutive model of steel fiber reinforced cementitious composite.” AIJ J. Technol. Des., 11, 5–8.
Leonhardt, F. (1964). Prestressed concrete: Design and construction, 2nd Ed., Wilhelm Ernst and Sohn, Berlin-Munich, Federal Republic of Germany.
Nielsen, C. V. (1995). “Ultra high-strength steel fibre reinforced concrete. Part I: Basic strength properties of compresit matrix.” Technical Univ. of Denmark, Copenhagen, Denmark, 323.
Oehlers, D. J. (1989). “Splitting induced by shear connectors in composite beams.” J. Struct. Eng., 341–362.
Oehlers, D. J., and Bradford, M. A. (1995). Composite steel and concrete structural members: Fundamental behavior, Pergamon Press, Oxford, U.K.
Oehlers, D. J., and Bradford, M. A. (1999). Elementary behaviour of composite steel and concrete structural members, Elsevier, Oxford.
PCI Committee (Prestressed Concrete Institute). (2004). “PCI design handbook: Precast and prestressed concrete.” Chicago.
Information & Authors
Information
Published In
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Sep 11, 2014
Accepted: Jun 10, 2015
Published online: Jul 31, 2015
Discussion open until: Dec 31, 2015
Published in print: Feb 1, 2016
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.