Development of Charts for Partially Clamped Slabs by Finite-Element Predictions
Publication: Journal of Structural Engineering
Volume 124, Issue 11
Abstract
The procedures involved in the use of a typical finite-element model for the development of prediction charts for partially clamped, reinforced concrete slabs, under uniformly distributed loading, are demonstrated in this paper. Test results from two sets of four, partially clamped slabs are used as a basis for finite-element simulation and extensive parametric studies, to identify the set of computational conditions and model parameter values, which would guarantee reliable prediction for similar slabs. The direct finite-element simulation of nine other partially clamped slabs, with the identified values, gave an average experiment-to-predicted strength ratio of 0.93. The developed finite-element model is then used for the analysis of a total of 450 “computer-model,” partially clamped slabs, resulting from various geometric dimensions, material strengths and reinforcement ratios, and the resulting database of ultimate strengths is used for chart development. Predictions from the developed charts, for partially clamped slabs of similar configuration, are found to be of the same order of accuracy as the direct finite-element analysis. Other design applications of the outlined procedure are also discussed.
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References
1.
“Building code requirements for reinforced concrete.” (1989). ACI 318-89, Am. Concrete Inst., Detroit, Mich.
2.
“Design of concrete structures, Part 1. General rules and rules for buildings.” (1992). Eurocode 2 DD ENV 1992-1-1, Comité Européen de Normalisation, Brussels, Belgium.
3.
Famiyesin, O. O. R., Bicanic, N., and Owen, D. R. J. (1995). “On the adequacy of a nonassociated plasticity models for static analysis of concrete slabs.”Proc., Int. Conf. on Computational Plasticity (COMPLAS), D. R. J. Owen, E. Onate, and E. Hinton, eds., Vol. II, Pineridge Press, Swansea, U.K., 1631–1642.
4.
Famiyesin, O. O. R., and Hossain, K. M. A.(1998). “Optimized design charts for fully restrained slabs by FE predictions.”J. Struct. Engrg., ASCE, 124(5), 560–569.
5.
Hossain, K. M. A., and Famiyesin, O. O. R. (1996a). “Finite element simulation of partially clamped reinforced concrete slabs.”Res. Rep. No. EG-SE96-4, Dept. of Engrg., Univ. of Aberdeen, Aberdeen, U.K.
6.
Hossain, K. M. A., and Famiyesin, O. O. R. (1996b). “Load control finite element simulation of reinforced concrete slabs under different clamped support conditions.”Res. Rep. No. EG-SE96-5, Dept. of Engrg., Univ. of Aberdeen, Aberdeen, U.K.
7.
Hossain, K. M. A., and Famiyesin, O. O. R. (1996c). “Prediction strategy for reliable finite element simulation of partially clamped reinforced concrete slabs.”Res. Rep. No. EG-SE96-9, Dept. of Engrg., Univ. of Aberdeen, Aberdeen, U.K.
8.
Hossain, K. M. A., and Famiyesin, O. O. R. (1996d). “Design charts for partially clamped reinforced concrete slabs under uniformly distributed load based on finite element predictions.”Res. Rep. No. EG-SE96-10, Dept. of Engrg., Univ. of Aberdeen, Aberdeen, U.K.
9.
Hossain, K. M. A., and Famiyesin, O. O. R. (1996e). “Finite element simulation of isotropically reinforced concrete slabs.”Res. Rep. No. EG-SE96-1, Dept. of Engrg., Univ. of Aberdeen, Aberdeen, U.K.
10.
Hossain, K. M. A., and Famiyesin, O. O. R. (1996f). “Establishing a basis for finite element prediction of simply supported concrete slabs by direct simulation.”Res. Rep. No. EG-SE96-11, Dept. of Engrg., Univ. of Aberdeen, Aberdeen, U.K.
11.
Hung, T. Y., and Nawy, E. G. (1971). “Limit strength and serviceability factors in uniformly loaded, iso-tropically reinforced two way slabs.”ACI SP-30, Am. Concrete Inst., Detroit, Mich., 301–324.
12.
Johansen, K. W. (1962). “Yield line theory.” Cement and Concrete Assn., London.
13.
Kupfer, K. H., Hilsdorf, K. H., and Rush, H.(1969). “Behaviour of concrete under biaxial stresses.”Proc., Am. Concrete Inst., 66(8), 656–666.
14.
Leet, K. M., and Bernal, D. (1996). Reinforced concrete design, 3rd Ed., McGraw-Hill, Inc., New York.
15.
“Norwegian standard for design of concrete structures.” (1989). NS 3473, Norwegian Council for Build. Standardisation, N.B.R., Oslo, Norway.
16.
Owen, D. R. J., and Figueiras, J. A. (1984). “Ultimate load analysis of reinforced concrete plates and shells including geometric nonlinear effects.”Finite element software for plates and shells, E. Hinton and D. R. J. Owen, eds., Pineridge Press, Swansea, U.K.
17.
Park, R. (1964). “Ultimate strength of rectangular concrete slabs under short term uniform loading with edges restrained against lateral movement.”Proc., Inst. of Civ. Engrs., London, 125–150.
18.
“Structural use of concrete, Part 1. Code of practice for design and construction.” (1985). BS8110, British Standard Inst., London.
19.
Whitney, C. S.(1937). “Design of reinforced concrete members under flexure or combined flexure and direct compression.”Proc., Am. Concrete Inst., 33, 483–498.
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Copyright © 1998 American Society of Civil Engineers.
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Published online: Nov 1, 1998
Published in print: Nov 1998
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