Stairs and railing system for multi-floored buildings and method

Details Stairs and railing system for multi-floored buildings and method Stairs and railing system for multi-floored buildings and method

1976-01-06

1976-11-30

Murtagh, John E.

Static structures (e.g., buildings)

Processes

Requiring soil work

52184, E04F 1100

Patent

active

039941132

ABSTRACT:
A stairs and method of constructing same is disclosed for multi-floored buildings having walled stairwells. Each run of stairs comprises parallel spaced apart stringers having horizontally extending ends for mounting platform members and a plurality of spaced apart risers secured to the stringers intermediate the ends for supporting tread members. The platform and tread members are made of reinforced concrete and contain threaded inserts to receive bolts for mounting them to the stringer ends and risers. A parallel set of stringers are temporarily supported in position prior to the construction of and being secured to the walls of the stairwell by jacks or the like positioned between platforms positioned on the ends of the stringers and the underside of the ends of an adjacent set of stringers.

REFERENCES:
patent: 3175654 (1965-03-01), Calvert

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