Analytical model for predicting membrane actions in RC beam-slab structures subjected to penultimate-internal column loss scenarios
Abstract
The potential for progressive collapse of RC buildings can be estimated by column loss scenarios. The loss of either internal or external penultimate columns is among the most critical scenarios since the beam-slab substructures associated with the removed column becomes laterally unrestrained with two discontinuous edges. At large deformations, membrane behaviour of the associated slabs, consisting of a compressive ring of concrete around its perimeter and tensile membrane action in the central region, represents an important line of defence against progressive collapse. The reserve capacity can be used to sustain amplified gravity loads and to mitigate the progressive collapse of building structures. In this paper, based on experimental observation of 1/4 scaled tests together with investigation of previous research works, an analytical model is proposed to predict the load-carrying capacity of beam-slab structures at large deformations. Comparison with the test results shows that the analytical model gives a good estimation of the overall load-carrying capacity of the RC slabs by membrane actions.
Article history: Received 15 March 2018, Revised 28 March 2018, Accepted 27 April 2018
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References
Bailey, C. G. (2001). Membrane action of unrestrained lightly reinforced concrete slabs at large displacements. Engineering Structures, 23(5):470–483.
Bailey, C. G., Toh, W. S., and Chan, B. M. (2008). Simplified and advanced analysis of membrane action of concrete slabs. ACI Structural Journal, 105(1):30–40.
Hayes, B. (1968). Allowing for membrane action in the plastic analysis of rectangular reinforced concrete slabs. Magazine of Concrete Research, 20(65):205–212.
Kemp, K. O. (1967). Yield of a square reinforced concrete slab on simple supports, allowing for membrane forces. The Structural Engineer, 45(7):235–240.
Park, R. and Gamble, W. L. (1998). Reinforced concrete slabs. John Wiley & Sons.
Park, R. (1964). Tensile membrane behaviour of uniformly loaded rectangular reinforced concrete slabs with fully restrained edges. Magazine of Concrete Research, 16(46):39–44.
Pham, X. D. (2009). Tensile membrane action in preventing progressive collapse of RC building structure subjected to a column removal. PhD First Year Report, Nanyang Technological University, Singapore.
Sawczuk, A. and Winnicki, L. (1965). Plastic behavior of simply supported reinforced concrete plates at moderately large deflections. International Journal of Solids and Structures, 1(1):97–111.
Brotchie, J. F. and Holley, M. J. (1971). Membrane action in slabs. International Symposium on the Cracking, Deflection, and Ultimate Load of Concrete Slab Systems - American Concrete Institute, 30:345–377.
Mitchell, D. and Cook, W. D. (1984). Preventing progressive collapse of slab structures. Journal of Structural Engineering, 110(7):1513–1532.
Sasani, M., Bazan, M., and Sagiroglu, S. (2007). Experimental and analytical progressive collapse evaluation of actual reinforced concrete structure. ACI Structural Journal, 104(6):731–739.
Wahyudi, T. Y. (2010). Tensile membrane action at reinforced concrete slabs. Final Year Report, School of Civil and Environmental Engineering, Nanyang Technological University.
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