Experimental and Numerical Investigation of Steel-Concrete Composite Waffle Slab Behavior
Publication: Journal of Structural Engineering
Volume 141, Issue 11
Abstract
This paper proposes a new kind of composite waffle slab that consists of orthogonal steel girders and flat RC slab. The steel beams help decrease the cracking that occurs with concrete, and using prefabricated RC slabs reduces the framework and speeds up the construction. An experimental investigation of steel-concrete composite waffle slabs is conducted, and the specimens are proved to have excellent ductility and load-bearing capacity. Then a mixed finite-element (FE) model combining the beam elements and shell elements is proposed to predict the behavior of composite waffle slab. Based on the numerical model, a series of parameter analyses are conducted, and the influences of different parameters on the mechanical behavior of the composite waffle slab are intensively investigated. Simplified formulas for the ultimate capacity of the composite waffle slab are derived based on the test observations and numerical analysis. Reasonable recommendations are proposed to help engineers design the composite waffle slab effectively.
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Acknowledgments
The authors express their sincere gratitude for the financial support provided by the National Natural Science Foundation of China (Grant No. 90815006) and Twelfth Five-Year Plan major projects supported by National Science and Technology Grant No. 2011BAJ09B01.
References
Abdul-Wahab, H. M. S., and Khalil, M. H. (2000). “Rigidity and strength of orthotropic reinforced concrete waffle slabs.” J. Struct. Eng., 219–227.
ACI (American Concrete Institute). (1995). “Building code requirements for reinforced cement.”, Detroit.
AISC (American Institute of Steel Construction). (1998). “Load & resistance factor design. Part 5: Composite design.” Vol. 1, Chicago.
Ajdukiewcz, A. B., and Kliszczewicz, A. T. (1986). “Experimental analysis of limit states in a six-panel waffle flat-plate structure.” ACI J., 83(6), 909–915.
Amadio, C., and Fragiacomo, M. (2002). “Effective width evaluation for steel–concrete composite beams.” J. Constr. Steel Res., 58(3), 373–388.
Bares, R., and Massonnet, C. (1966). Analysis of beam grids and orthotropic plates, Lockwood, London.
Bazant, Z., and Oh, B. (1983). “Crack band theory for fracture of concrete.” Mater. Struct., 16(3), 155–177.
BSI (British Standards Institution). (1997). “Structural use of concrete, Part 1: Code of practice for design and construction (R).”, London.
CEN. (1992). “Eurocode 4, design of composite steel and concrete structures—Part 1.1: General rules and rules for building.”, Brussels.
Comité Euro-International du Béton-Fédération International de la Précontrainte (CEB-FIP). (1993). Model code, Thomas Telford, London.
Cusens, A. R., and Pama, R. P. (1975). Bridge deck analysis, Wiley, London, England, 29–111.
Huang, Y. L., Lu, X. Z., Ye, L. P., and Shi, W. (2011). “A pushover analysis algorithm based on multiple point constraints.” Eng. Mech., 28(2), 18–23 (in Chinese).
Ibrahima, A., Salimb, H., and El-Din, H. S. (2011). “Moment coefficients for design of waffle slabs with and without openings.” Eng. Struct., 33(9), 2644–2652.
Ji, X., Chen, S., Huang, T., and Lu, L. (1986). Deflection of waffle slabs under gravity and in-plane loads, American Concrete Institute, Detroit.
Johnson, R. P. (1975). Composite structure of steel and concrete, Granada, London.
Kennedy, J. B. (1983). “Orientation of ribs in waffle-slab skew bridges.” J. Struct. Eng., 811–816.
Magura, D. D., and Corley, W. G. (1971). “Tests to destruction of multipanel waffle slab structure 1964–1965 New York World’s Fair.” ACI J., 68(9), 699–703.
MSC Software. (2007). MSC.MARC User’s manual, Calif.
Nie, J. G., and Cai, C. S. (2003). “Steel–concrete composite beams considering shear slip effect.” J. Struct. Eng., 495–506.
Nie, J. G., Tao, M. X., and Cai, C. S. (2011). “Modeling and investigation of elasto-plastic behavior of steel–concrete composite frame systems.” J. Constr. Steel Res., 67(12), 1973–1984.
Nie, J. G., Tian, C. Y., and Cai, C. S. (2008). “Effective width of steel–concrete composite beam at ultimate strength state.” Eng. Struct., 30(5), 1396–1407.
Ollgaard, J. G., Slutter, R. G., and Fisher, J. W. (1971). “Shear strength of stud connectors in lightweight and normal-weight concrete.” AISC Eng. J., 8, 55–64.
Park, R., and Thompson, K. J. (1974). “Behavior of prestressed, partially prestressed, and reinforced concrete interior beam-column assemblied under cyclic loading.”, Dept. of Civil Engineering, Univ. of Canterbury, Christchurch, New Zealand.
Rodriguez, M. E., Santiago, S., and Meli, R. (1995). “Seismic load tests on two-story waffle-flat-plate structure.” J. Struct. Eng., 1287–1293.
Rüsch, H. (1960). “Research toward a general flexural theory for structural concrete.” ACI Struct J., 57(1), 1–28.
Tebbett, I. E., and Harrop, J. (1979). “Analytical design of ribbed flat slabs.” Struct. Eng., 57(7), 223–230.
Timoshenko, S., and Woinowsky-Krieger, S. (1959). Theory of plates and shells, 2nd Ed., McGraw-Hill, New York, 364–377.
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Published In
Journal of Structural Engineering
Volume 141 • Issue 11 • November 2015
Copyright
© 2015 American Society of Civil Engineers.
History
Received: May 21, 2014
Accepted: Jan 6, 2015
Published online: Feb 17, 2015
Discussion open until: Jul 17, 2015
Published in print: Nov 1, 2015
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