Reference Standard 9

101

REFERENCE STANDARD RS 9 LOADS* LIST OF REFERENCED NATIONAL STANDARDS

**AASHTO Standard Specifications for Highway Bridges, Thirteenth Edition and 1984, 1985 andHB-13 1986 Interim Specifications 1983

AREA Specifications for Steel Railway Bridges, Chapter 15, Steel Structures, Manual forRailway Engineering...1987

*UBC SECTION 2312 Earthquake Regulations With Accumulative Supplement..1990*135-88BCR** Local Law 17-1995.

REFERENCE STANDARD RS 9-1MINIMUM UNIT DESIGN DEAD LOADS FOR STRUCTURAL DESIGN PURPOSES

Weight (psf)WALLS AND PARTITIONS (unplastered).Clay brick

High absorption (per 4 in. wythe).. 33Low absorption (per 4 in. wythe)... 45

Concrete brick4 in.. 464 in. lightweight aggregate. 338 in.. 898 in. lightweight aggregate.... 6812 in... 13012 in. lightweight aggregate.. 98

Sand-lime brickper 4 in. wythe... 38

Solid concrete block4 in. 404 in. lightweight aggregate.... 278 in. 678 in. lightweight aggregate.... 4812 in... 10812 in. lightweight aggregate.. 72

Hollow concrete block4 in. 304 in. lightweight aggregate.... 208 in. 538 in. lightweight aggregate.... 3812 in... 8512 in. lightweight aggregate.. 55

Solid gypsum block(per in. thickness). 6

Hollow gypsum block2 in. 9.54 in. 12.56 in. 18.5

Clay, tile, load bearing4 in. 248 in. 4212 in... 58

Clay tile, non-load bearing2 in. 114 in. 188 in. 3412 in... 46

Facing tile2 in. 166 in. 298 in. 41

Split terra cotta furring tile1 1/2 in... 82 in. 103 in. 12

Glass block4 in. 20

PLASTER PARTITIONS2 in. thick, solid cement plaster on metal lath... 252 in. thick, solid gypsum plaster on metal lath.. 18

Metal studs, any lath, and 3/4 in. gypsum plaster, both sides... 18Wood studs, any lath, and 3/4 in. gypsum plaster, both sides. 19

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Reference Standard 9

102

EQUIVALENT UNIFORM PARTITION LOADS

Partition Weight (plf)Equivalent Uniform Load (psf)

(To be added to floor dead and live loads)50 or less 051 to 100 6101 to 200.. 12201 to 350.. 20Greater than 350 20 plus a concentrated live load of the weight in excess of 350 plf..

Weight (psf)PLASTER ON MASONRY SURFACES.

Gypsum, with sand aggregate, per in. 8.5Gypsum, with lightweight aggregate, per in.. 4Gypsum, with wood fibers, per in.. 6.5Cement, with sand aggregate, per in.. 10Cement, with lightweight aggregate, per in... 5FLOOR FINISHES (Excluding fill or base).Resilient flooring (asphalt tile, linoleum, etc.).. 2Asphalt block, 2 in. 24Wood block, 3 in 10Hardwood flooring, 7/8 in. 4Softwood sub-flooring, per in 3Plywood sub-flooring, 1/2 in.. 1.5Ceramic or quarry tile, 1 in 12Terrazzo, 1 in. 12Slate, 1 in 15Cement, 1 in... 12FLOOR FILL

Cinders, no cement, per in.. 5Cinders, with cement, per in... 9Sand, per in. ... 8

FLOORS WOOD JOIST CONSTRUCTION(With double layer wood flooring - no ceiling)

Total Weight (psf)**Joint Sizes (in.) 12 in. Joist Spacing 16 in. Joist Spacing

2 x 6 6 52 x 8 6 6

2 x 10 7 62 x 12 8 73 x 6 7 63 x 8 8 7

3 x 10 9 83 x 12 11 93 x 14 12 10

** As enacted but "joist" probably intended.Weight (psf)

CEILINGS: (including suspension system).Plaster on tile or concretesee Plaster on Masonry SurfacesSuspended metal lath and gypsum plaster, 3/4 in. ... 9Suspended metal lath and cement plaster, 3/4 in.. 11Suspended acoustical tile. 2ROOF AND WALL COVERINGSClay roofing tiles.. 14Built-up roofing:3-ply.. 1.55-ply.. 2.5Gravel, 1/4 to 5/8 in.. 4Slag, 1/4 to 5/8 in.. 3Crushed rock, 1/4 to 5/8 in... 4.5

Aluminum sheet:0.050 in. thick, flat 0.720.032 in. thick, corrugated 0.550.032 in. thick, V-Beam 0.58Steel, 20 gauge, protected V-Beam.. 2.3Tin sheet, 28 gauge.. 1

Reference Standard 9

103

Asbestos-cement, corrugated roofing, 3/8 in 4Fiberboard, 1/2 in. 0.8Gypsum sheathing, in... 2Wood sheathing, per in. 3Wood shingles, in place 3Asphalt shingles, in place. 6Asbestos-cement shingles, in place.. 4Cement tile, 3/8 in. in place.. 16Stucco (cement), per in. 10Slate, 3/16 in. in place.. 7Slate, 1/4 in. in place.... 10Skylight, metal frame, 3/8 in. wire glass.. 10

MISCELLANEOUS MATERIALSGlass

singlestrength.... 1.2double strength.. 1.6plate, wired or structured, 1/8 in... 1.6insulating, double 1/8 in. plates w/air space. 3.5insulating, double 1/4 in. plates w/air space..... 7.1

Insulationfiber glass, per in. 1.5foam glass, per in 0.8Urethane, 1 in.. 1.0

2 in.. 1.2cork, per in. 1.0vegetable fiber boards, per in. 1.5bats and blankets, per in. 0.5vermiculite, loose fill0.6 pcf..expanded polystyrene1.0 pcf..

Marble, interior, per in. 14Plastic, acrylic, 1/4 in.... 1.5Slate, per in... 15Asphaltic concrete. 144Cast-stone masonry (cement, stone, sand) 144Cinder fill.. 57Concrete, plain (other than expanded aggregates)

cinder.. 108slag. 132stone (including gravel). 144

Reinforced concreteAdd 6 pcf to unit weights shown for plain concrete

Cork, compressed.. 14Earth.. 100Masonry, ashlar

granite. 165limestone (crystalline). 165limestone (oolitic)... 135marble. 173sandstone (bluestone). 144

Masonry, rubble w/ mortargranite. 153limestone (crystalline) 147limestone (oolitic)... 138marble. 156sandstone (bluestone). 137

Masonry, dry rubbleGranite 130limestone (oolitic).. 125marble. 130Sandstone (bluestone). 110

Terra cotta, architecturalvoids filled.. 120voids empty. 72

Timber, seasonedpine, Douglas fir, and similar species. 35oak, elm, and similar species. 45

*As enacted but gage probably intended.

Reference Standard 9

104

REFERENCE STANDARD RS 9-2MINIMUM REQUIREMENTS FOR UNIFORMLY DISTRIBUTED AND CONCENTRATED LIVE

LOADS UNIFORMLY DISTRIBUTED LIVE LOADS

Occupancy or Use of Spaces Live load(psf)

Assembly spacesDrill rooms.. 150Assembly spaces having fixed seats, including auditorium areas in churches, schools, theaters,courthouses, lodges, lecture halls, and similar buildings 60aDance floors, restaurant serving and dining areas, mess halls, museums, gymnasiums, skating rinks,promenades, and roof gardens. 100Private assembly spaces, including conference rooms and card rooms.. 50Stadium, grandstand, and reviewing stand seating areas 100Other assembly spaces See note d

BalconiesExterior See note bInterior (as required for occupancy or use)Mezzanines (as required for occupancy or use)

Catwalks 30Corridors

(1) Corridors in schools.. 100(2) Corridors, elevators, and stairs in office buildings (other than first floor lobbies)... 75(3) Corridors serving first floor elevator lobbies, auditoriums, and similar areas of public assembly... 100(4) Other (same as that required for the occupancy of the area being served) 100

Elevator machine rooms (see Reference Standard RS 18)Equipment rooms, including pump rooms, generator rooms, transformer vaults, and areas for switch gear,ventilating, air conditioning, and similar electrical and mechanical equipment 75Fire escapes

Multiple dwellings.. 40Others.. 100

HospitalsOperating rooms, laboratories, and service areas 60Rooms and wards 40Personnel areas 40Other (as required for occupancy or use of the area)

LibrariesReading and study room areas.... 60Stack areas (see Storage)Other (as required for occupancy or use of the area)

Lobbies and similar areas. 100Manufacturing and repair areas 100Marquees.. 60Office areas (not including record storage areas). 50Parking areas

For passenger cars, provided that the clear headroom at the entrance does not exceed 8 ft... 50Penal institutions

Cell blocks.. 40Other (as required for occupancy or use of the area)

Plaza areas (open) accessible to the public (including landscaped portions) 100Recreational areas

Bowling alleys (alleys only) 40Poolrooms... 75Other (see assembly areas)

Residential areasDormitories

Non-partitioned.. 60Partitioned.. 40

DwellingsMulti-family units

Apartments .. 40Public rooms (as required for occupancy or use)

One- and two-family unitsFirst floor.. 40

Reference Standard 9

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Upper floors and habitable attics.. 30Uninhabitable attics.. 20c

HotelsGuest rooms.. 40Public rooms (as required for occupancy or use)

SchoolsClassrooms.. 40Shops (automotive and press shops). 100Shops (others). 60Other (as required for occupancy or use of the area)

Stairs and exit passages (same as Fire escapes)Storage

Light 100Warehouse.. 150

StoresWholesale sales.. 100Retail sales

Basement and first floor 100Upper floors.. 75

Telephone equipment rooms 80Theaters

Dressing rooms 40Projection room... 100Stage floor... 150

Toilet areas... 40* Notes:a Uniform load shall be applied to the gross floor area.b 150 per cent of live load on adjoining occupied area, but not more than 100 psf.c Live load need be applied to joists or to bottom chords of trusses or trussed rafters only in those portions of attic space having a clear height of42 in. or more between joist and rafter in conventional rafter construction; and between bottom chord and any other memb