Punching of prestressed flat slabs: Experimental analysis

Citation:
Punching of prestressed flat slabs: Experimental analysis, Ramos, A. M. P., and Lúcio V. J. G. , International Workshop on Punching Shear Capacity of RC Flat Slabs, Volume 57, Stockholm, p.441–448, (2000)

Abstract:

The experimental analysis of nine prestressed flat slab models under punching is described and the results are compared with the recommendations of EC2 and MC90. The tests were performed on specimens at a scale 1/3, prestressed with unbonded high strength steel. In the first set, the specimens (AR2 to AR5 and AR7) were only subjected to in-plane compression, to evaluate the effect of the in-plane forces on the punching resistance. The second set of tests (AR8 to AR11) intended to study the effect of the vertical component of the tendon forces near the column in the punching resistance. This work aims to improve the understanding of the behaviour of prestressed flat slabs under punching load and the evaluation of the punching resistance.

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