Three level car park at a new city centre supermarket
Supermarket group Morrisons needed to maximise car parking spaces at the confined site adjacent to their new 5,000m2 store less than 75 metres from the busy Five Ways roundabout in Edgbaston, Birmingham.
Main contractor ISG appointed PCE to be responsible for the design, procurement and construction of the suspended first and second floor car park structure including ramps, parapet walls, lift and stair towers providing 330 car parking places adjacent to the new store.
GT floor system
PCE developed a design based on their GT floor system which uses precast pre-stressed concrete units up to 16 metres in length and 1.8 metres wide supported by a conventional precast concrete column and beam framework.
The GT units are only 400mm deep and contain lightweight formers at their core to reduce self-weight. The GT units are designed to be incorporated into the structure without the need for any structural concrete toppings, the top surface of the unit being finished in the factory to provide an anti slip finish, in this instance a diamond imprint pattern.
The lack of onsite operations to provide a structural concrete topping also reduces the overall construction programme and ensures that following trades can access the structure for their works earlier.
The car park structure was constructed on site with deliveries strictly scheduled on a just-in-time basis with units being delivered from the three manufacturers appointed by PCE.
All precast units were lifted direct from the trailers by PCE’s staff using the company’s own craneage. The PCE patented SlingSafe fall arrest system was used to provide a safe system of working for PCE’s staff when unloading the GT floor units.
The car park structure was completed on programme and has clearly demonstrated the benefits of using the PCE long span GT Flooring system. An aesthetically pleasing high quality flat soffit to the suspended car park decks, and a reduction in the volumes of concrete materials that would normally be expected to be used for such a construction were also achieved.
Car parks: complete multi-storey structural frame solutions »
Car parks: achieving a significant dead load reduction »