Journal article Open Access

Resistance of Flat Plate Reinforced of Glass Fiber Mesh Sheets Due To Shear Punching

Mohamed S. Moawad

Sponsor(s)
Blue Eyes Intelligence Engineering & Sciences Publication(BEIESP)

punching shear failure of the flat plat of the column location especially of two-way flat plat is one of the major problem and this form of failure should be avoided. The paper deals with the punching shear behavior of the two-way concrete slabs reinforced by using thin sheets of glass fiber reinforced polymer (GFRP) with traditional steel bars reinforcement. Five flat plat specimens slabs measuring (1500x1500x150mm) with interior column measuring (150mmX150mm). Reinforced by GFRP thin mesh sheets in additional of deformed steel bars reinforcement were conducted and tested under concentric load until failure. The test parameter were studied i) No. of GFRP thin mesh sheets layers ii) Position of GFRP mesh thin sheets layers (at compression and tension zones). The test results were reported in terms of cracking behavior and propagation, maximum deflection, strains in concrete and reinforcement, punching shear capacity, and modes of failure. The test results were also employed to assess the accuracy of the available punching shear capacity equations including the new punching equations in ECP2018.201. The test results show that increasing in the punching shear capacity, decreasing of the average cracking widths, and improving in an integrity of the slab specimens which reinforcing by glass fiber thin mesh sheets in the post cracking stage in comparison with conventional reinforced concrete slabs.

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