ASSEMBLY WEIGHTS (PSF):
DIAPHRAGMS:
Level - Roof
Built-Up roofing;
5.00
2" rigid insulation @ 1.5psf/in., 1.5x2 =
3.00
6" Thick hollow core concrete slab;
49.00
2-1/2" Concrete topping; 2.5"(1'/12")150pcf =
31.30
Suspended ceiling;
1.00
Mech., Elec., & Miscellaneous
3.00
2
(4.42KN/m )
Total =
92.3 psf
Level - Floors
Floor finish;
1.00
Partitions (10psf per FEMA 310 section 3.5.2.1);
10.00
6" Thick hollow core concrete slab;
49.00
2-1/2" Concrete topping; 2.5"(1'/12")150pcf =
31.30
Suspended ceiling;
1.00
Mech., Elec., & Miscellaneous
3.00
2
(4.56KN/m )
Total =
95.3 psf
TRANSVERSE WALLS:
2
(5.39KN/m )
9" Thick reinforced concrete shear walls; 9"(1'/12")150pcf =
112.50 psf
LONGITUDINAL WALLS:
Infill;
6" Thick medium weight concrete block wall grouted at 48" o.c.;
40.00 psf
Windows;
Glass, frame and sash;
8.00 psf
Columns;
18" wide by 24" deep columns (use 23.5' spacing);
2
2
18"(24")(1-ft /144-in )(150pcf)(1/23.5') =
19.15 psf
Spandral Beams at floors;
24" deep by 18" wide spandrel beams (use 11' tributary height);
2
2
24"(18")(1-ft /144-in )(150pcf)(1/11') =
40.91 psf
Spandral Beams and parapet at roof;
16" deep by 18" wide spandrel beams (use 5.5' tributary height);
2
2
16"(18")(1-ft /144-in )(150pcf)(1/5.5') =
54.55
27" deep by 12" wide parapet;
2
2
27"(12")(1-ft /144-in )(150pcf)(1/5.5') =
61.36
2
(5.55KN/m )
Total =
115.9 psf
Figure 7. Calculation of component weights
H2-18
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