Building Specifications
Summary Specification
  • Base Design Occupancy Ratio 1:8
  • Clear floor to ceiling height reception: 3,37m; offices: 2,77m
  • 250mm raised floors
  • 3 Passenger Lifts (16 persons) 1 Freight Lift (13 persons)
  • Havac –1 VRF System per typical floor
  • 1 no. 160 KWA Generator
  • 346 Car Parking Spaces
  • Edge Standard – Green Classification
1. dimensional

floor to ceiling height
reception: 3,370mm
parking: 2,520mm
typical floors: 2,770mm
penthouse: 2,700mm

raised floor height: 250mm
planning grid – varies
column grid – varies

2. population density

design criteria
base case 8 m2/person
service 9 m2/person
lift capacity 10 m2/person
wc provision 10 m2/person
means of escape 6 m2/person

toilets per floor
ground 7 (disabled 1)
typical 10 (disables 2)

parking spaces – 346 bays
ground floor-15 bays
1st floor-81 bays
2nd floor- 81 bays
3rd floor-81 bays
4th floor-53 bays
5th floor-35 bays

3. structure

imposed load

general 3,0 kn/m2
parking floors 3,0 kn/m2
roof 0.4 kn/m2
technical areas 3,0 kn/m2

4. lifts

passenger lifts – 3
car capacity 16 persons
(1250 kg) speed – 1.75 m/s

freight lift – 1
car capacity 13 persons
(1000 kg) speed – 1.75 m/s

5. electrical

electrical load
small power – 25 w/m2 (office nia)
lighting 10 w/m2

illumination levels
general office 400 lux average (open plan office)
reception 300 lux
stairs 150 lux
lifts 100 lux
plant areas 200 lux

generators
located at ground floor
capacyty of 160 kva with built in 400 litters day fuel tank (additional 1200 liters fuel deposit).

6. mechanical and plumbing

toilets per floor
ground 8
typical 10

disabled toilets per floor
ground 1
typical 2
outside conditions
summer - 35ºc (dry bulb); 80%rh
winter - 12ºc (dry bulb); 70%rh

inside temperature & humidity
summer - 24ºc (dry bulb); 50%rh
winter - 22ºc (dry bulb); 50%rh

cooling load
office open-space 170 w/m2

extract rates
toilets- 400 m3/h
utility – natural ventilation
storage areas – natural ventilation

smoke ventilation
offices-7300 m3/h
below and above fire stairs – 3600 m3/h

ourside air supply
freshness air flow per person 12.00 l/s

outside air supply change rates
sanitarry instalations 8 to 10 changes/hour
storage and technical 2 to 3 changes/hour
offices and workings zones changes/hour

hvac systems
ground floor – direct expansion mono
parking – simple and passive system
typical floor – one vrf system

water storage
at 1:8 occupancy 20 l/person

7. acoustics

internal sound insulation
between office floors- dnt,w 45 db (shell and core), dnt,w 45 db (cat a)

building services noise
open plan offices 40 nr
circulation areas 40 nr
entrance lobby 45 nr