Reinforced concrete flat slabs with openings at different distances from the column

abstract: The increase in the use of flat slabs and need openings for passage installations, such as hydraulic electrical, which significantly reduces punching shear resistance capacity slab, makes understanding influence this type structure extremely necessary. structural behaviour with at different distances from column was investigated through five square (1,800 mm x 1,800 130 mm) supported on columns (150 150 tested until failure. results obtained experimentally were compared available literature, well responses predicted normative instructions. confirm high stresses concentration region between opening that situated 3d have no failure load slabs.