MEP-Technical Manual CDN 0408.qxd - Hambro
MEP-Technical Manual CDN 0408.qxd - Hambro
MEP-Technical Manual CDN 0408.qxd - Hambro
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IMPERIAL<br />
JOIST DEPTH SELECTION TABLES<br />
Concrete: f’ c = 3 000 psi; density = 145 lb./ft. 3<br />
Joist spacing = 4’-1 1/4”<br />
NOTE: Plywood forms are to be slit in half with depths<br />
of H8 and H10.<br />
Slab thickness = 3 1/2”<br />
Residential Office Other Loading<br />
Building Building (LL=100 psf)<br />
Dead Load (psf) 71 71 71<br />
Live Load (psf) 40 50 100<br />
Total Load (psf) 111 121 171<br />
SPAN c/c<br />
12’-0”<br />
14’-0”<br />
16’-0”<br />
18’-0”<br />
20’-0”<br />
22’-0”<br />
24’-0”<br />
26’-0”<br />
28’-0”<br />
30’-0”<br />
32’-0”<br />
34’-0”<br />
36’-0”<br />
38’-0”<br />
40’-0” *<br />
43’-0” *<br />
H8 H8 H12<br />
min = H8 min = H8 min = H8<br />
H8 H8 H12<br />
min = H8 min = H8 min = H8<br />
H10 H10 H14<br />
min = H8 min = H8 min = H8<br />
H12 H14 H14<br />
min = H8 min = H8 min = H8<br />
H14 H14 H14<br />
min = H8 min = H8 min = H8<br />
H14 H14 H14<br />
min = H10 min = H10 min = H10<br />
H14 H16 H16<br />
min = H10 min = H10 min = H10<br />
H16 H16 H18<br />
min = H12 min = H12 min = H12<br />
H16 H18 H20<br />
min = H12 min = H12 min = H12<br />
H18 H18 H20<br />
min = H12 min = H12 min = H12<br />
H18 H20 H20<br />
min = H14 min = H14 min = H14<br />
H20 H20 H20<br />
min = H14 min = H14 min = H14<br />
H20 H20 H22<br />
min = H16 min = H16 min = H16<br />
H22 H22<br />
min = H16 min = H16<br />
H24 H24<br />
min = H18 min = H18<br />
H24 H24<br />
min = H20 min = H20<br />
* Permanent line of cross bridging shall be installed at mid-span.<br />
HXXX<br />
min = HXXX<br />
: Optimal H Series Joist Depth (in.)<br />
: Minimum Depth (in.) Allowed<br />
Slab thickness = 4”<br />
Residential Office Other Loading<br />
Building Building (LL=100 psf)<br />
Dead Load (psf) 77 77 77<br />
Live Load (psf) 40 50 100<br />
Total Load (psf) 117 127 177<br />
SPAN c/c<br />
12’-0”<br />
14’-0”<br />
16’-0”<br />
18’-0”<br />
20’-0”<br />
22’-0”<br />
24’-0”<br />
26’-0”<br />
28’-0”<br />
30’-0”<br />
32’-0”<br />
34’-0”<br />
36’-0”<br />
38’-0”<br />
40’-0” *<br />
43’-0” *<br />
H8 H8 H10<br />
min = H8 min = H8 min = H8<br />
H8 H8 H10<br />
min = H8 min = H8 min = H8<br />
H10 H10 H14<br />
min = H8 min = H8 min = H8<br />
H12 H14 H14<br />
min = H8 min = H8 min = H8<br />
H14 H14 H14<br />
min = H8 min = H8 min = H8<br />
H14 H14 H14<br />
min = H10 min = H10 min = H10<br />
H14 H16 H16<br />
min = H10 min = H10 min = H10<br />
H16 H18 H18<br />
min = H12 min = H12 min = H12<br />
H20 H20 H22<br />
min = H12 min = H12 min = H12<br />
H20 H20 H22<br />
min = H12 min = H12 min = H12<br />
H20 H20 H20<br />
min = H14 min = H14 min = H14<br />
H20 H20 H20<br />
min = H14 min = H14 min = H16<br />
H20 H20<br />
min = H16 min = H16<br />
H22 H22<br />
min = H18 min = H18<br />
H24 H24<br />
min = H20 min = H20<br />
H24 H24<br />
min = H20 min = H20<br />
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