The invention of the equipment called Lift has brought about major change in the height of buildings. Although , the installation and erection of the basic lift equipment and its accessories do not fall under the scope of civil engineers , a construction person has to be fairly acquainted with the provisions for the lift.
This article brings to you the details of the lift well , lift room and lift pit.
Lift room :
This is the top most portions of the lift well. It has 2 slabs.The lower slab has a square hole in the center for passing of the steel wires from the motor up to the cabin top. The topmost slab is usually having provisions of insert plates. Monorail with hoist is suspended from these insert plates for maintenance of the motors.
This is rectangular in shape .RCC walls on 3 sides and the opening for lift shutters on the fourth side.
Lift well is 150 to 200 mm thick RCC wall and the internal side is just left as it is. There is no plaster on the internal face and therefore hacking need not be done on the concrete surface .
Form work :
Lift pit :
The base raft has provision of insert plates for installing the shock absorbers for the lift.
Water proofing is necessary to avoid the seepage of sub soil water into the lift pit.
Box type water proofing is normally suggested in the pit.