The composite precast flat slab solution offered by Oran Precast on this project resulted in significantly faster build times that those projected under the original in-situ scheme

The project consisted of a double level basement car park beneath a 5 storey hospital building. In total almost 12,000m2 of flat slab was constructed in the 14 week timeframe. Each of the 7 levels required a full design due to variations in the loadings, opes and floor recesses. A vibration analysis of the floor slab was carried out in house by Oran Pre-Cast design team.

The design included the provision of

For an in-depth overview of our flat slab system see the technical brochure in the downloads section.

Oran Pre-Cast proposed a precast concrete frame as a viable alternative to the cast in situ RC flat slab design

The building is framed around 2 irregular shaped internal courtyards, intersected at an angle by a 3 storey administration block.

This geometry resulted in a high number of bespoke precast elements, with very little repetition between members. Rectangular, half-filled composite, spine and edge beams were all used as required.

Points of interest include:

The prestressed hollowcore flooring allowed for greater spans than a similar RC slab. This reduced both the number of supporting columns required, and the overall dead load onto the foundations.