ASSEMBLY WEIGHTS (PSF):
DIAPHRAGMS:
Level - High Roof
Built-Up roofing;
5.00
2" rigid insulation @ 1.5psf/in., 1.5x2 =
3.00
1-1/2"-22 GA Decking (galvanized);
1.90
10K1 Open Web Steel Joists @ 4' o.c.; 5plf(1/4') =
1.25
W12x14 Edge Beam @ equivalent 15' o.c.; 14plf(1/15') =
0.93
W14X26 Beam @ avg spacing of 10' o.c.; 26plf(1/10') =
2.60
Suspended ceiling;
1.00
Mech., Elec., & Miscellaneous
3.00
2
(0.9KN/m )
Total =
18.7 psf
Level - Low Roof
Built-Up roofing;
5.00
2" rigid insulation @ 1.5psf/in., 1.5x2 =
3.00
1-1/2"-22 GA Decking (galvanized);
1.90
10K1 Open Web Steel Joists @ 4' o.c.; 5plf(1/4') =
1.30
W12x14 Edge Beam @ equivalent 15' o.c.; 14plf(1/15') =
0.93
W14X26 Beam @ avg spacing of 13' o.c.; 26plf(1/13') =
1.00
Suspended ceiling;
1.00
Mech., Elec., & Miscellaneous
3.00
2
(0.82KN/m )
Total =
17.1 psf
Level - Second Floor
Floor Finish;
1.00
5" Thick Concrete Floor Slab; (5/12)'(150pcf) =
62.50
W10x17 Beam @ avg spacing of 7.5' o.c.; 17plf(1/7.5') =
2.27
W21x50 Girders @ avg spacing of 10' o.c.; 50plf(1/10') =
5.00
Partitions (10 psf per FEMA 310 section 3.5.2.1);
10.00
Suspended ceiling;
1.00
Mech., Elec., & Miscellaneous
3.00
2
(4.06KN/m )
Total =
84.8 psf
METAL SIDE WALLS:
Metal Siding;
1.00
Girts;
1.00
2" insulation @ 1.0psf/in., 1.0x2 =
2.00
W14X34 Col @ avg spacing of 17.5'; 34plf(1/17.5') =
1.94
2
(0.3KN/m )
Total =
5.9 psf
Figure 2. Calculation of component weights.
H4-10
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