Research Description
To validate the accuracy of ANSYS V.19, an experimental model based on a previous
study was used to determine the typical values of crack pattern, ultimate load, and deflection. The
model was a flat slab with an internal column with dimensions of 1000 × 1000 × 100 mm³. Four
groups used a slab with an edge column in parametric research. The first group studied the opening
size relative to the column face. The second group of specimens studied opening sizes close to column
corners. The third group consisted of four specimens: two had openings in front of the column face
and two in front of the column corner to study how opening distance affected flat slab behaviour. The
fourth group examined the optimum opening arrangement in slabs with two openings around the
column. The findings showed that flat slab openings at the column corner had higher ultimate load
capacity than those at the column face; however, increasing opening dimensions beyond the column
dimension decreases punching shear capacity. If the column needs two openings, place them on opposite faces or near the corners; this minimizes ultimate load reduction
