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Unformatted text preview: erage amount allowed on a
floor and determdined by the type of occupancy or use.
(a) Human Occupancy. See Table 1.04-A.
(b) Warehouse. See Table 1.04-B.
Special Occupancy: Use loads in Table 1.04-C unless more accurate information
2. Concentrated Loads. Design all floors to support either uniformly distributed loadings or the
following concentrated loads (whichever develops the greater stresses). Unless otherwise specified, load
concentration shall be assumed to occupy spaces 75 cms. x 75 cms. (2-1/2 x 2-1/2 ft.) and placed to
develop maximum stresses in the affected members.
(a) Elevator machine room grating 135 kilograms (300 lbs.) on area of 25 sq.cm. (4
(b) Finish light floor plate 90 kilograms (200 lbs.) on area of 6.5 sq. cm. ( 1 sq. in.).
(c) Floors other than those above 900 kilograms (2,000 lbs.).
(d) Scuttles, skylights and accessible ceilings 90 kilograms (200 lbs.).
(B) STAIRS, SIDEWALKS, DRIVEWAYS, AND RAILINGS
1. Stairs. Apply either a uniformly distributed loading of 100 psf or concentrated loads of 135
kilograms (300 lbs.) spaced 90 cms. (3 ft.) center to center each occupying an area of 30 cms. (1 ft.) wide
by the depth of the tread (whichever develops the greater stresses).
2. Sidewalks. Apply either a uniformly distributed loading of 1250 kgs. per square meter (250
pounds per square foot) or, when subject to trucking, a concentrated load of 3,600 kilograms (8,000 lbs.)
on an area of 75 cm. x 75 cm. (2-1/2 ft. x 2-1/2 ft.) whichever develops the greater stresses.
3. Driveways. Apply either a uniformly distributed loading of 1250 kilograms per square meter (250
pounds per square foot) or the heaviest wheel load expected (minimum 5,400 kilograms (12,000 lbs.).
Use whichever develops the greater stresses.
4. Railings. Dsign stairway, balcony railings and guardrails to resist a horizontal force of 65
kilograms per meter (100 lbs. per linear foot) applied normally at the top of the railing.
(b) All ceiling joists shall be designed for not less than 50 kilograms per square meter (10 pounds
per square foot) total load. TABLE 1.04-A
LIVE LOAD REQUIREMENTS FOR HUMAN OCCUPANCY LIVE LOAD
OCCUPANCY OR USE
ksm psf Apartments (See Residential)
Armories (not drill halls)
Assembly halls and other places of assembly
Bowling alleys, poolrooms, and similar
Other floors, same as occupancy served
as indicated and with minimum of
Dining Rooms and Restaurants
Dwellings (See Residential)
Gymnasiums, Main Floors and Balconies
Hotels (see Residential)
with max. 750 ksm 150 psf
Lobbies, vestibules, and waiting rooms
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- Fall '12