Flat Slab with Drop Panel

Location: Kochi, Kerala

About Project

This is an IT Park project located in Smart City Kochi, having total area of 533,150 sq. ft.. It comprises 7 floors including G+5+Terrace floors. This project was completed in 2015.

Requirement

Being an IT Park, large span and clear height was prime requirement. The flooring load were quite heavy compared to normal load, due to electrification embedded on the floor. Also there was a specific timeline for completing the project.

Solution

The adoption of flat slab with drop panel resulted in obstruction free floor configuration giving a clear height of 10.5ft.. Shuttering installation and removal could be done much faster due to beam elimination and application of post-tensioning system.

Due to this, the speed of construction was considerable increased. Hence we were able to match the client’s timeline.

Post-tensioning was done in both slab and beams of all five floors of the commercial complex. P-T slab is in form of flat slab and drop panels (450 mm thick) at columns; thickness of slab on 1st floor is 250mm to 300mm. On rest above floors, PT slab is 250mm thick. This slab was designed for heavy live loads (1500 kg/sq. m).

The design parameters of this project were checked and verified by proof checking at Structural Engineering Department of Indian Institute of Technology Madras (IITM), Chennai. After construction and before the building was put into use, IITM Chennai evaluated the building by carrying out a load test.

As Kochi being near to the sea shore, Encapsulated Monostrand Unbonded Post-Tensioning System was applied in this project there to overcome are fair chances of corrosion issue in longer run.

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