MEP-Technical Manual CDN 0408.qxd - Hambro

IMPERIAL
7.2 D500 TM (H SERIES)
12
JOIST DEPTH SELECTION TABLES
Concrete: f’ c = 3 000 psi; density = 145 lb./ft. 3
Joist spacing = 4’-1 1/4”
NOTE: Plywood forms are to be slit in half with depths
of H8 and H10.
Slab thickness = 2 1/2”
Residential Office Other Loading
Building Building (LL=100 psf)
Dead Load (psf) 59 59 59
Live Load (psf) 40 50 100
Total Load (psf) 99 109 159
SPAN c/c
12’-0”
14’-0”
16’-0”
18’-0”
20’-0”
22’-0”
24’-0”
26’-0”
28’-0”
30’-0”
32’-0”
34’-0”
36’-0”
38’-0”
40’-0” *
43’-0” *
H8 H8 H12
min = H8 min = H8 min = H8
H8 H8 H12
min = H8 min = H8 min = H8
H10 H12 H14
min = H8 min = H8 min = H8
H12 H14 H14
min = H8 min = H8 min = H8
H14 H14 H16
min = H8 min = H8 min = H8
H16 H16 H16
min = H10 min = H10 min = H10
H16 H16 H16
min = H10 min = H10 min = H10
H16 H16 H18
min = H12 min = H12 min = H12
H16 H16 H20
min = H12 min = H12 min = H12
H18 H18 H20
min = H12 min = H12 min = H12
H20 H20 H22
min = H14 min = H14 min = H14
H20 H20 H22
min = H14 min = H14 min = H14
H22 H22 H24
min = H16 min = H16 min = H16
H22 H22 H24
min = H16 min = H16 min = H16
H24 H24
min = H16 min = H16
H24 H24
min = H18 min = H18
* Permanent line of cross bridging shall be installed at mid-span.
HXXX
min = HXXX
: Optimal H Series Joist Depth (in.)
: Minimum Depth (in.) Allowed
Slab thickness = 3”
Residential Office Other Loading
Building Building (LL=100 psf)
Dead Load (psf) 65 65 65
Live Load (psf) 40 50 100
Total Load (psf) 105 115 165
SPAN c/c
12’-0”
14’-0”
16’-0”
18’-0”
20’-0”
22’-0”
24’-0”
26’-0”
28’-0”
30’-0”
32’-0”
34’-0”
36’-0”
38’-0”
40’-0” *
43’-0” *
H8 H8 H12
min = H8 min = H8 min = H8
H8 H8 H12
min = H8 min = H8 min = H8
H10 H12 H14
min = H8 min = H8 min = H8
H12 H14 H14
min = H8 min = H8 min = H8
H14 H14 H16
min = H8 min = H8 min = H8
H16 H16 H16
min = H10 min = H10 min = H10
H16 H16 H16
min = H10 min = H10 min = H10
H16 H16 H18
min = H12 min = H12 min = H12
H16 H18 H20
min = H12 min = H12 min = H12
H18 H18 H20
min = H12 min = H12 min = H12
H20 H22 H22
min = H14 min = H14 min = H14
H20 H20 H22
min = H14 min = H14 min = H14
H20 H20 H22
min = H16 min = H16 min = H16
H22 H22
min = H16 min = H16
H24 H24
min = H16 min = H16
H24 H24
min = H18 min = H18