Architect and Builder Magazine South Africa March/April 2014 | Page 49

Parking levels P0 and P1 are cost effective post tensioned suspended slabs, also on split level. All parking levels, basement and suspended, are naturally ventilated. The structure above the parking levels is designed as reinforcement coffer slabs from atrium level (off street pedestrian access from Grand Central and Bond Street) up to roof level. The atrium up to 3rd floor is designed for general office loading. The ‘clearstorey’ is essentially a planted roof slab with a lightweight steel roof over the atriums. The roof slab is only 44 on Grand Central situated over the central lift and toilet core and will be used for various electrical and the mechanical plant. The central atrium penetrates all office floors and encourages visual and physical cohesion Environmental Factors As Rudolf Pienaar, Growthpoint Properties Offices Divisional Director explained, “Growthpoint strives to create quality office space which works best for our clients. Green building is essential to providing spaces in which businesses can thrive. Thoughtful design was applied to 44 on Grand Central, creating a 49