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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METRIC<br />
JOIST DEPTH SELECTION TABLES<br />
Concrete: f’ c = 20 MPa; density = 2 400 kg/m 3<br />
Joist spacing = 1 285 mm<br />
NOTE: Plywood forms have to be slit in half for<br />
any depth.<br />
Slab thickness = 100 mm<br />
Residential Office Other Loading<br />
Building Building (LL=4,8 kPa)<br />
Dead Load (kPa) 3.78 3.78 3.78<br />
Live Load (kPa) 1.92 2.40 4.80<br />
Total Load (kPa) 5.70 6.18 8.58<br />
SPAN c/c (mm)<br />
9 150<br />
9 750<br />
10 350<br />
10 975<br />
11 575<br />
12 200 *<br />
12 800 *<br />
13 400 *<br />
14 025 *<br />
14 630 *<br />
15 240 *<br />
15 850 *<br />
LH500 LH500 LH600<br />
min = LH400 min = LH400 min = LH500<br />
LH500 LH600 LH700<br />
min = LH400 min = LH400 min = LH500<br />
LH600 LH700 LH800<br />
min = LH400 min = LH400 min = LH600<br />
LH700 LH800 LH800<br />
min = LH400 min = LH400 min = LH600<br />
LH800 LH800 LH800<br />
min = LH500 min = LH500 min = LH700<br />
LH700 LH800 LH800<br />
min = LH500 min = LH500 min = LH700<br />
LH800 LH800 LH800<br />
min = LH500 min = LH500 min = LH800<br />
LH800 LH800 LH900<br />
min = LH600 min = LH600 min = LH800<br />
LH800 LH900 LH900<br />
min = LH600 min = LH600 min = LH900<br />
LH900 LH900 LH900<br />
min = LH600 min = LH600 min = LH900<br />
LH900 LH900<br />
min = LH600 min = LH600<br />
LH900 LH900<br />
min = LH700 min = LH700<br />
* Permanent line of cross bridging shall be installed at mid-span.<br />
LHXXX<br />
min = LHXXX<br />
: Optimal LH Series Joist Depth (mm)<br />
: Minimum Depth (mm) Allowed<br />
Slab thickness = 115 mm<br />
Residential Office Other Loading<br />
Building Building (LL=4,8 kPa)<br />
Dead Load (kPa) 4.00 4.00 4.00<br />
Live Load (kPa) 1.92 2.40 4.80<br />
Total Load (kPa) 5.92 6.40 8.80<br />
SPAN c/c (mm)<br />
9 150<br />
9 750<br />
10 350<br />
10 975<br />
11 575<br />
12 200 *<br />
12 800 *<br />
13 400 *<br />
14 025 *<br />
14 630 *<br />
15 240 *<br />
15 850 *<br />
LH500 LH500 LH600<br />
min = LH400 min = LH400 min = LH500<br />
LH600 LH600 LH700<br />
min = LH400 min = LH400 min = LH500<br />
LH600 LH700 LH800<br />
min = LH400 min = LH400 min = LH600<br />
LH800 LH800 LH800<br />
min = LH500 min = LH500 min = LH600<br />
LH800 LH800 LH800<br />
min = LH500 min = LH500 min = LH600<br />
LH800 LH800 LH800<br />
min = LH600 min = LH600 min = LH700<br />
LH800 LH800 LH800<br />
min = LH600 min = LH600 min = LH800<br />
LH900 LH900 LH900<br />
min = LH600 min = LH600 min = LH800<br />
LH900 LH800 LH900<br />
min = LH600 min = LH600 min = LH900<br />
LH900 LH900 LH900<br />
min = LH600 min = LH600 min = LH900<br />
LH900 LH900<br />
min = LH700 min = LH700<br />
LH900<br />
min = LH700<br />
9
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