Joist Design Properties – Canada

 

P3 Joist Factored Resistance – Table 16
Series Depth EI2  (106 lbf-in.2) Mr3 (lbf-ft) Vr4 (lbf) K5 (106 lbf) Self Weight (plf) Allowable Verticle
Load (lbf/ft)
PJI 40 9-1/2  193  4,549 1,768  4.94  2.6 3300
11-7/8  330  5,896  2,241  6.18  2.9  3300
 14 482  7,102  2,699  7.28  3.1  3300
 16 657  8,233  3,109  8.32  3.4  3300
PJI 60  9-1/2 231  6,287  1,768  4.94  2.6 3300
 11-7/8  396  8,150  2,241  6.18  2.9  3300
 14 584  9,805  2,699  7.28  3.1  3300
 16 799 11,368  3,109  8.32  3.4  3300
PJI 80  11-7/8  547  11,543  2,241  6.18  3.6  3300
 14  802 13,904 2,699  7.28  3.8  3300
16  1,092  16,116  3,109  8.32  4  3300
18  1,413  18,295  3,867  9.36  4.3  3300
 20  1,790  20,258  3,993 10.4  4.5  2850
22  2,214 22,187  4,128  11.44  4.7  2400
 24 2,687  24,100  4,254  12.48  4.9  2300

NOTES:

  1. The tabulated values are design values for standard duration of load. All values, except EI and K, shall be permitted to be adjusted for other load durations as permitted by the code.
  2. Bending stiffness (EI) of the P3 Joist
  3. Moment capacity of the P3 Joist which shall not be increased by any code allowed repetitive member use factor.
  4. Shear capacity (V) of the P3 Joist
  5. Coefficient of shear deflection (K) of the P3 Joist (For calculating uniform load and center-point load deflections of the P3 Joist in a simple-span application see the full Canadian P3 Joist User Guide (coming soon).