Analysis of RC Membrane Elements With Anisotropic Reinforcement
Publication: Journal of Structural Engineering
Volume 115, Issue 3
Abstract
The effect of skew, anisotropic reinforcement on the post‐cracking response and ultimate capacity of RC membrane elements under monotonically increasing proportional loading is studied. Appropriate constitutive models for concrete and steel, including a post‐cracking model, are implemented in a finite element program. An orthogonally reinforced hypothetical RC panel is analyzed first. Upon initial cracking the anisotropic reinforcement causes the principal stress and strain directions of the cracked concrete shift. These shifts, which also depend on the cracked concrete shear stiffness, may cause additional nonorthogonal cracks to develop in later stages of loading. Anisotropically reinforced experimental panels are then analyzed up to failure. The computed results show good correlation with the experimental data. The influence of cracked concrete shear stiffness on the internal load resisting mechanisms and load‐deformation responses is evaluated. The significance of simulating crack shifting behavior for realistic predictions of stiffness, ultimate capacities, and modes of failure for skew, anisotropically reinforced elements is demonstrated.
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References
1.
Al‐Mahaidi, R. S. H. (1979). “Nonlinear finite element analysis of reinforced concrete deep members.” Report No. 79‐1, Dept. of Struct. Engrg., Cornell Univ., Ithaca, N.Y.
2.
ASCE Task Committee on Concrete and Masonry Structures. (1982). Finite element analysis of reinforced concrete. Chapter 4, ASCE, New York, N.Y.
3.
Barzegar, F., and Schnobrich, W. C. (1986). “Nonlinear finite element analysis of reinforced concrete under short term monotonic loading.” Civ. Engrg. Studies, SRS 530, Univ. of Illinois, Urbana, Ill.
4.
Barzegar, F., and Schnobrich, W. C. (1988). “Modeling tension stiffening in finite element analysis of RC panels.” Proc. Canadian Society for Civ. Engrg., 3, 1988, 277–303.
5.
Barzegar, F. “Layering of RC membrane and plate elements in nonlinear analysis.” J. Struct. Engrg. ASCE, 114(11), 2474–2492.
6.
Bažant, Z. P. (1983). “Comments on orthotopic models for concrete and geomaterials.” J. Engrg. Mech. Div., ASCE, 109(3), 849–865.
7.
Collins, M. P., Vecchio, F. J., and Mehlhorn, G. (1985). “An international competition to predict the response of reinforced concrete panels.” Can. J. Civ. Engrg. 12, 624–644.
8.
Cope, R. J., et al. (1980). “Modelling of Reinforced Concrete Behavior for Finite Element Analysis of Bridge Slabs.” In Numerical Methods for Nonlinear Problems, C. Taylor, E. Hinton and D. R. J. Owen, eds., Pineridge Press, Swansea, 1, 457–470.
9.
de Borst, R., and Nauta, P. (1985). “Non‐orthogonal cracks in a smeared finite element model.” Engrg. Computations, 2, 35–46.
10.
Gupta, A. K., and Akbar, H. (1984). “Cracking in reinforced concrete analysis.” J. Struct. Engrg., ASCE, 110(8), 1735–1746.
11.
Hu, H. T., and Schnobrich, W. C. (1988). “Nonlinear analysis of plane stress state reinforced concrete under short term monotonic loading.” Civil Engineering Studies, SRS 539, University of Illinois, Urbana, Ill.
12.
Kupfer, H. B., Hilsdorf, H. K., and Rusch, H. (1969). “Behavior of concrete under biaxial stresses.” J. ACI, 66(8), 656–666.
13.
Milford, R. V., and Schnobrich, W. C. (1984). “Numerical model for cracked reinforced concrete.” Proc. Int. Conf. Computer Aided Analysis and Design of Concrete Structure, F. Damjanic, et al., eds., Pineridge Press, Swansea, Part 1, 71–84.
14.
Ottosen, N. S. (1979). “Constitutive model for short‐time loading of concrete.” J. Engrg. Mech. Div., ASCE, 105(1), 127–141.
15.
Rashid, Y. R. (1968). “Ultimate strength analysis of prestressed concrete pressure vessels.” Nuclear Engrg. and Design, 7(4), 334–344.
16.
Suidan, M., and Schnobrich, W. C. (1973). “Finite element analysis of reinforced concrete.” J. Struct. Div., ASCE, 99(10), 2109–2122.
17.
Vecchio, F. J., and Collins, M. P. (1982). “The response of reinforced concrete to in‐plane shear and normal stresses.” Publication No. 82‐03, University of Toronto.
18.
Vecchio, F. J., and Collins, M. P. (1986). “The modified compression‐field theory for reinforced concrete elements subjected to shear.” J. ACI, Mar.–Apr.
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Copyright © 1989 ASCE.
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Published online: Mar 1, 1989
Published in print: Mar 1989
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