Page 177 - Structural Steel Designers Handbook AISC, AASHTO, AISI, ASTM, and ASCE-07 Design Standards

Brockenbrough_Ch04.qxd 9/29/05 5:09 PM Page 4.5

BUILDING CODES, LOADS, AND FIRE PROTECTION*

Load, lb/ft 2 39 79 115 155 12 43 55 57 61 67 79 115 50 62 65 68 75 87 123 54 66 69 72 78 90 127 12 105 124 133

10 37 47 49 52 57 66 95 44 54 56 58 63 73 102 47 57 59 62 67 76 105 10 87 102 110

8 31 38 40 42 46 53 75 36 44 45 47 51 59 81 39 47 48 50 54 61 83 8 69 81 87

6 24 29 30 32 34 40 55 28 33 34 36 39 44 59 30 36 37 38 41 46 62 6 51 60 64

4 22 26 29 4 32 38 41

Component Hollow concrete masonry unit wythes: grout spacing grout spacing grout spacing Solid concrete masonry unit wythes:
FRAME WALLS (cont.) Clay brick wythes: 4 in 8 in 12 in 16 in Wythe thickness (in inches) Density of unit (16.49 kN/m 3 ) No grout o.c. 48″ o.c. 40″ o.c. 32″ o.c. 24″ o.c. 16″ Full grout Density of unit (125 lb/ft 3 ) No grout o.c. 48″ o.c. 40″ o.c. 32″ o.c. 24″ o.c. 16″ Full grout Density of unit (21.21 kN/m 3 ) No grout o.c. 48″ o.c. 40″ o.c. 32″ o.c. 24″ o.c. 16″ Full grout Wythe thickness (in mm) Density of unit (105 lb/ft 3 ) D

Load, lb/ft 2 1 33 15 23 3 19 32 32 10 16 4 8 4 12 20 11 12 48 8

Minimum Design Dead Loads* (Continued) Component FLOORS AND FLOOR FINISHES (cont.) FLOORS, WOOD-JOIST (NO PLASTER) 24-in 16-in spacing spacing (lb/ft 2 ) (lb/ft 2 ) 5 5 5 6 6 6 6 7 Wood or steel studs, 1 / 2-in gypsum board each side 4, unplastered 4, plastered one side 4, plastered two sides

TABLE 4.1 Linoleum or asphalt tile, 1 / 4-in Marble and mortar on stone-concrete fill Slate (per mm thickness) Solid flat tile on 1-in mortar base Subflooring, 3 / 4-in Terrazzo (1 1 / 2-in) directly on slab Terrazzo (1-in) on stone-concrete fill Terrazzo (1-in), 2-in stone concrete Wood block (3-in) on mastic, no fill Wood block (3-in) on 1 / 2-in mortar base DOUBLE WOOD FLOOR 12-in spacing Joist sizes (lb/ft 2 ) (in) 6 6 2 × 6 8 2 × 7 10 2 × 8 12 2 × FRAME PART

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