With regard to the behaviour of the test specimen, it is found that the performance of load carrying capacity is controlled by the formation of major cracks propagating alongside the slab surface. A simulation for a predicted model was then performed using finite element tool as a means to verify the results from experimental work and to provide a bigger picture regarding the initiation and progression of cracks. To this end, a typical half-scale reinforced concrete slab-column connection specimen was tested under cyclic lateral load up to 3.5% drift ratio. The behaviour of the reinforced concrete slab-column connection, adopted from a prototype flat slab system as subassembly model, is studied. When the mesh size decreased, stiffness was increased and ductility was decreased. TRM effectiveness was sensitive to the mesh size of the textile. In addition, the slabs strengthened by TRM showed stiffer behavior than that strengthened by FRP, but lesser ductile. The results obtained from FE analysis showed that the efficiency of TRM in increasing the punching shear capacity of strengthened slabs was less than that of FRP. For each group, one specimen was built as control (unstrengthened), one was strengthened by FRP-sheet, and the other two was strengthened by TRM-jacket with two different mesh opening (10 and 20 mm). Specimens of G1 were tested with concentric load, while these of G2 were tested with 150 mm eccentricity. Specimens of G1 was similar to that of G2 in all details but differ in the eccentricity of the applied load. These eight specimens were divided into two groups (G1 and G2) with four specimens for each of them.

Finite element (FE) model using ABAQUS computer program was developed to analyze eight half-scaled slabs, in terms of load-carrying capacity, ductility, stiffness, and crack patterns.

In this paper, the effectiveness of textile-reinforced mortar (TRM) and fiber-reinforced polymer (FRP), as a means of improving the punching behavior of reinforced concrete flat slabs were numerically investigated.

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