Behavior of Reinforced Concrete Plates under Pure Torsion
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Abstract
The behavior of reinforced concrete members under torsional loading has interested many researchers during the last decades. These researches focused mainly on the response of reinforced concrete beams at different reinforcement conditions and the size effects. On the other hand, the behavior of concrete plates or slabs has not been investigated clearly under pure and/or combined torsional loading. In the present study, nine reinforced concrete plates were prepared and tested under pure torsion. Effect of steel reinforcement ratio and size change was studied and they have a great effect on the plated strength, capacity, stiffness and ductility. As stated by torsion theories of reinforced concrete beams, the torsional strength of slabs was upgraded also with increasing in cross section and transverse reinforcement ratio.
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References
Timoshenko S and Woinowsky-Krieger S. Theory of Plates and Shells. 2nd Ed. (New York: McGraw-Hill Companies) pp 118-120; 2000.
Bernardo LFA, Lopes SMR. Theoretical behavior of HSC beams under torsion. Engineering Structures 2011; 33(12):3702–3714.
Lopes SMR, Bernardo LFA. Twist behavior of high strength concrete hollow beams-formation of plastic hinges along the length. Engineering Structures, 2009; 31(1): 138–149
Vecchio FJ, Tata M. Approximate analyses of reinforced concrete slabs. Structural Engineering and Mechanics, 1999; 8(1):1–18
Marti P, Leesti P and Khalifa W U. Torsion test on reinforced concrete slab elements. Journal of Structural Engineering,1987; 113(5): 994–1010
Matri P and Kong K. Response of reinforced concrete slab elements to torsion. Journal of Structural Engineering, 1987; 113(5): 976-993
May, I. M., Montague, P., Samad, A. A. A., Lodi, S. H. and Fraser, A. S. The behaviour of reinforced concrete elements subject to bending and twisting moments. Structures and Buildings, 2001; 146(2): 161- 171.
Lopes A V, Lopes S M R and Carmo R N F D. Stiffness of reinforced concrete slabs subjected to torsion. Materials and Structures, 2013; 47: 227-238
Nguyen Mai Chi Trung, T. P. P., Vuong Ngoc Luu. An experimental study on torsional stiffness of reinforced concrete slab. Paper Presented At The 7th International Conference of Asian Concrete Federation” SUSTAINABLE CONCRETE FOR NOW AND THE FUTURE”, 2016, Hanoi, Vietnam.
Nguyen, M., & Pham, P. An investigation on the behavior and stiffness of reinforced concrete slabs subjected to torsion. Paper presented at the IOP conference series: Materials science and Engineering, 2017
ACI Committee 318. Building code requirements for structural concrete and Commentary (ACI 318R-14). American Concrete Institute, Farmington Hills, MI, 2014.
Jamal, A. Al Dahir .Design Reinforced Concrete Structures According to ACI318-14. 2nd Edition, 2016.
Nilson A H, Darwin D and Dolan C W. Design of Concrete Structures. 14th Edition (New York: McGraw-Hill Companies) pp 432-434; 2010
ACI Committee 211. Standard Practice for Selecting Proportions for Normal, Heavyweight and Mass Concrete. ACI 211.1-91, American Concrete Institute, Farmington Hills, Michigan, 1991.
Ameli, M., Ronagh, H.R. and Dux, P. F. Behavior of FRP strengthened reinforced concrete beams under torsion. Journal of Composite Construction, 2007; 11(2): 192-200.
Calioris, C.E. Experimental study of the torsion of reinforced concrete members. Structural Engineering and Mechanics, 2006; 23 (6): 713-737.
Peng, X.-N., & Wong, Y.-L. Behavior of reinforced concrete walls subjected to monotonic pure torsion: an experimental study. Engineering Structures, 2011; 33(9): 2495-2508
Bernardo, L.F.A. and Lopes, S.M.R. Behavior of concrete beams under torsion: NSC plain and hollow beams. Materials and Structures, 2008; 41:1143-1167.
McMullen, A. E., & El-Degwy, W. Prestressed concrete tests compared with torsion theories. PCI Journal, 1985; 30(5): 96-127
Naji, H. F., Khalid, N. N., Medhlom, M. K. A Review on numerical analysis of RC flat slabs exposed to fire. Tikrit Journal of Engineering Sciences, 2020, 27(1): 1- 5
Jomaa’h, M. M., Ahmed, Sh., Algburi, H. M. Flexural behavior of reinforced concrete one-way slabs with different ratios of lightweight coarse aggregate. Tikrit Journal of Engineering Sciences, 2018; 25 (4): 37-45