Experimental Studies on Shear Strength of Steel–Concrete Composite Beams
Publication: Journal of Structural Engineering
Volume 130, Issue 8
Abstract
Static loading tests were conducted on 16 steel–concrete composite beams and two steel beams to investigate shear resisting mechanisms and the strength of composite beams. The main experimental parameters were the shear span aspect ratio of the simply supported beams, and the width and thickness of the concrete flanges. Based on strain measurements, stress in the steel beam was analyzed using theories of elasticity and plasticity, and the vertical shear that the steel beam resisted was calculated. The shear resistance of the concrete flange was then obtained by subtracting the steel shear contribution from the total load applied. It was found that the concrete flange could sustain 33–56% of the total ultimate shear applied to the composite beam specimens, contrary to the typical assumption of neglecting the concrete shear contribution in most design codes and specifications. A shear strength equation that considers the shear contributions of both the steel beam and the concrete flange is proposed.
Get full access to this article
View all available purchase options and get full access to this article.
References
American Association of State Highway and Transportation Officials (AASHTO). (1998). “LRFD bridge design specification.” 2nd Ed., American Association of State Highway and Transportation Officials, Washington, D.C.
American Concrete Institute (ACI). (1999). “Building code requirements for reinforced concrete and commentary (ACI 318-99/ACI 418R-99).” American Concrete Institute, Farmington Hills, Mich.
American Institute of Steel Construction (AISC). (1989). “Specification for structural steel buildings—Allowable stress design and plastic design.” American Institute of Steel Construction, Chicago.
American Institute of Steel Construction (AISC). (1999). “Load and resistance factor design specification for structural steel buildings.” American Institution of Steel Construction, Chicago.
Ansourian, P.(1982). “Experiments on continuous composite beams.” Proc., Inst. Civ. Eng.,73, 25–51.
ASCE Task Committee on Design Criteria for Composite Structures in Steel and Concrete. (1998). “Design guide for partially restrained composite connections.” J. Struct. Eng., 124(10), 1099–1114.
Ayoub, A., and Filippou, F.(2000). “Mixed formulation of nonlinear steel–soncrete composite beam element.” J. Struct. Eng., 126(3), 371–381.
Benitez, M., Darwin, D., and Donahey, R.(1998). “Deflections of composite beams with web openings.” J. Struct. Eng., 124(10), 1139–1147.
Bracci, J. M., Moore, Jr., W. P., and Bugeja, M. N.(1999). “Seismic design and costructability of RCS special moment frames.” J. Struct. Eng., 125(4), 385–392.
Chen, W. F., and Duan, L. (2000). Bridge engineering handbook, Chemical Rubber, Boca Raton, Fla.
GBJ. (1988). “Steel structure design code.” China National Standard, GBJ 17–88.
Grant, J. A., Fisher, J. W., and Slutter, R. G.(1977). “Composite beams with formed steel deck.” Eng. J., 14(1), 24–43.
Hansell, W. C., Viest, I. M., Ravindra, M. K., and Galambos, T. V.(1978). “Composite beam criteria in LRFD.” J. Struct. Div. ASCE, 104(9), 1409–1426.
Hope-Gill, M. C., and Johnson, R. P.(1976). “Tests on three three-span continuous composite beams.” Proc., Inst. Civ. Eng.,61, 367–381.
Johnson, R. P., and Willmington, R. T.(1972). “Vertical shear in continuous composite beams.” Proc., Inst. Civ. Eng.,53, 189–205.
Joint ASCE-AASHTO Subcommittee on Flexural Members. (1968). “Design of hybrid steel beams.” Rep. of Subcommittee, J. Struct. Div. ASCE, 94(6).
Leon, R. T. (1997). “Shortcomings and recent improvements in composite construction codes.” Building to Last—Proc. of Structures Congress XV, L. Kempner, Jr., and C. B. Brown, eds., ASCE, New York, 373–377.
McGarraugh, J. B., and Baldwin, J. W.(1971). “Lightweight concrete-on-steel composite beams.” Eng. J., 8(3), 90–98.
Nie, J. G., and Cai, C. S.(2000). “Deflection of cracked beams under sustained loading.” J. Struct. Eng., 126(6), 708–716.
Nie, J. G., and Wang, H. Q.(1997). “Longitudinal shear strength of steel-concrete composite beams.” J. Building Struct.,18(2), 13–19 (in Chinese).
Nie, J. G., and Wei, J. (1989). “Research on a new kind of continuous composite steel–concrete beam using precast concrete slabs and postplaced concrete flange.” Proc., Int. Conf. on Highrise Buildings, 380–390.
Salari, R. M., Spacone, E., Shing, P. B., and Frangopol, D. M.(1998). “Nonlinear analysis of composite beams with deformable shear connectors.” J. Struct. Eng., 124(10), 1148–1158.
Slutter, R. G., and Driscoll, G. C.(1965). “Flexural strength of steel-concrete composite beams.” J. Struct. Div. ASCE, 91(2), 71–99.
Tomii, M., Yoshimura, K., and Morishita, Y. (1977). “Experimental studies on concrete filled steel tubular stub columns under concentric loading.” Proc., Int. Colloq. on Stability of Structures under Static and Dynamic Loads, Structural Stability Research Council, Washington, D.C., 718–741.
Viest, I. M., Colaco, J. P., Furlong, R. W., Griffis, L. G., Leon, R. T., and Wyllie, L. A., Jr., eds. (1997). Composite construction design for buildings, ASCE McGraw-Hill, New York.
Wang, Y. C.(1998). “Deflection of steel-concrete composite beams with partial shear interaction.” J. Struct. Eng., 124(10), 1159–1165.
Xiao, Y., and Mahin, S., eds. (2000). “Composite and hybrid structures.” Proc., 6th Association for Steel-Concrete Composite Structures International Conf., Los Angeles, March 22–24, Vols. 1 and 2.
Xiao, Y., Tomii, M., and Sakino, K.(1991). “Triaxial compressive behavior of confined concrete.” J. Concrete Res. Technol., Japan Concrete Inst., 2(1), 1–14.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 130 • Issue 8 • August 2004
Pages: 1206 - 1213
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Sep 13, 2002
Accepted: Oct 31, 2003
Published online: Jul 15, 2004
Published in print: Aug 2004
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.