Nonlinear Analysis of Composite Beams with Deformable Shear Connectors
Publication: Journal of Structural Engineering
Volume 124, Issue 10
Abstract
Composite floor systems, consisting of reinforced concrete slabs and steel girders, are common in buildings and bridges. Partial restraints at the interface of the concrete slab and the steel girder have significant effects on the response of the composite beam. A few analytical models capable of accounting for these effects are available; however, none can be efficiently used for the nonlinear analysis of composite beams. In this paper, the basic governing equations are presented for a composite beam with deformable shear connectors under small displacements. Based on these equations, a new composite beam element is developed using the force method of analysis. The performance of this new element is compared with that of a previously developed displacement-based composite beam element. Both elements consist of two beam components connected through a deformable interface. A distributed spring model is used to account for the shear deformation at the interface. Two numerical examples on the nonlinear behavior of composite beams are solved using both displacement- and force-based elements. Comparison of the numerical results shows the superior performance of the newly developed force-based element over the displacement-based element.
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References
1.
Amadio, C., and Fragiacomo, M. (1993). “A finite element model for the study of creep and shrinkage effects in composite beams with deformable shear connections.”Costruzioni Metalliche, Vol. 4, Associazione Costruttori Acciaio Italiani, Milan, Italy, 213–228.
2.
Aribert, J. M., and Ragneau, E. (1997). “Theoretical investigation of moment redistribution in composite continuous beams of different classes.”Compos. Constr. in Steel and Concrete III, Proc., Engrg. Found. Conf., C. D. Buckner and B. Shahrooz, eds., ASCE, New York, 392–405.
3.
Arizumi, Y., Hamada, S., and Kajita, T. (1981). “Elastic-plastic analysis of composite beams with incomplete interaction by finite element method.”Comp. Struct., 14(5-6), 453–462.
4.
Ayoub, A., and Filippou, F. C. (1997). “A model for composite steel-concrete girders under cyclic loading.”Build. to Last, Proc., ASCE Struct. Congr. XV, Vol. 1, L. Kempner Jr. and C. B. Brown, eds., ASCE, New York, 721–725.
5.
Bursi, O. S., and Ballerini, M. (1996). “Behavior of a steel-concrete composite substructure with full and partial shear connection.”Proc., 11th World Conf. on Earthquake Engrg., Pergamon, Disk 2, Paper No. 771, Elsevier Science, Oxford, England.
6.
Daniel, B. J., and Crisinel, M.(1993). “Composite slab behavior and strength analysis. Part I: Calculation procedure.”J. Struct. Engrg., ASCE, 119(1), 16–35.
7.
El-Tawil, S., and Deierlein, G. G. (1996a). “Fiber analysis of composite beam-column cross sections.”Struct. Engrg. Rep. No. 96-06, School of Civ. and Envir. Engrg., Cornell University, Ithaca, N.Y.
8.
El-Tawil, S., and Deierlein, G. G. (1996b). “Inelastic analysis of mixed steel-concrete frames.”SSRC-ASCE Struct. Congr. XIV, S. K. Ghosh and J. Mohammadi, eds., ASCE, New York.
9.
Hajjar, J. F., Schiller, P. H., and Molodan, A. (1997). “A distributed plasticity model for concrete-filled steel tube beam-columns with interlayer slip. Part I: Slip formulation and monotonic analysis.”Struct. Engrg. Rep. ST-97-1, Dept. of Civ. Engrg., University of Minnesota, Minneapolis, Minn.
10.
Hirst, M. J. S., and Yeo, M. F.(1980). “The analysis of composite beams using standard finite element programs.”Comp. Struct., 11(3), 233–237.
11.
Neuenhofer, A., and Filippou, F. C.(1997). “Evaluation of nonlinear frame finite-element models.”J. Struct. Engrg., ASCE, 123(7), 958–966.
12.
Neuenhofer, A., and Filippou, F. C.(1998). “Geometrically nonlinear flexibility-based frame finite element.”J. Struct. Engrg., ASCE, 124(6), 704–711.
13.
Razaqpur, A. G., and Nofal, M.(1989). “A finite element for modeling the nonlinear behavior of shear connectors in composite structures.”Comp. Struct., 32(1), 169–174.
14.
Salari, M. R., Spacone, E., Shing, P. B., and Frangopol, D. M. (1997). “Behavior of composite structures under cyclic loading.”Build. to Last, Proc., ASCE Struct. Congr. XV, Vol. 1, L. Kempner Jr. and C. B. Brown, eds., ASCE, New York, 731–735.
15.
Spacone, E., Filippou, F. C., and Taucer, F. F.(1996). “Fiber beam-column model for nonlinear analysis of R/C frames. I: Formulation.”Earthquake Engrg. and Struct. Dyn., 25(7), 711–725.
16.
Wegmuller, A. W., and Amer, H. N.(1977). “Nonlinear response of composite steel-concrete bridges.”Comp. Struct., 7(2), 161–169.
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Information
Published In
Journal of Structural Engineering
Volume 124 • Issue 10 • October 1998
Pages: 1148 - 1158
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Oct 1, 1998
Published in print: Oct 1998
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