Flat Slab with Drop Panel

Location: Jaipur, Rajasthan
About Project
Kalyan Mart is a commercial complex in Jaipur, having total area of 3,58,000 sq. ft. and comprising of four towers each of G+7 floors.
Requirement
The geometry of the towers is accumulated within an inverted right angled triangle; the towers are spaced vertically in descending order of their plan lengths, beginning from the vertical side of triangle to the opposite vertex of the triangle. Angular shaped cantilevers are provided in edge areas of all four sides of towers out of which largest cantilever is of 4.5m. which is challenging from execution point of view.
Solution
By adopting Unbonded Post-Tensioning System, we could optimize slab thickness and beam depth to a great extent. Post-Tensioning was done in first floor beams (laid in grid pattern) of all the towers.
All the above floors of Tower-1, 2, 3 are provided with flat slab of 200 mm thickness and drop panels of 250 mm thickness. Tower-4 is provided with P-T beams on all floors in a grid pattern.