Next shallower size,
Next deeper size,
Topped double tee,
Design criteria ,
SECTION PROPERTIES
| I = |
30486 |
in4 |
Zt = |
4114 |
in3 |
Zb = |
1838 |
in3 |
A = |
557 |
in2 |
| W = |
60 |
psf |
Yt = |
7.41 |
in |
Yb = |
16.59 |
in |
|
|
|
ALLOWABLE SUPERIMPOSED LOAD (in pounds per square foot)
| SIMPLE
SPAN (in feet) |
| Number
of ½" Ø strands per tee |
38 |
42 |
46 |
50 |
54 |
58 |
62 |
66 |
70 |
74 |
78 |
82 |
|
|
|
|
|
| 6 (straight) |
67 |
46 |
30 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 6 (harped) |
77 |
54 |
36 |
23 |
|
|
|
|
|
|
|
|
|
|
|
|
|
| 8 (straight) |
80 |
71 |
51 |
35 |
22 |
|
|
|
|
|
|
|
|
|
|
|
|
| 8 (harped) |
|
80 |
63 |
46 |
31 |
|
|
|
|
|
|
|
|
|
|
|
|
| 10 (straight) |
|
80 |
67 |
48 |
32 |
20 |
|
|
|
|
|
|
|
|
|
|
|
| 10 (harped) |
|
|
80 |
66 |
48 |
33 |
22 |
|
|
|
|
|
|
|
|
|
|
| 12 (harped) |
|
|
|
80 |
63 |
47 |
33 |
22 |
|
|
|
|
|
|
|
|
|
| 14 (harped) |
|
|
|
|
78 |
60 |
45 |
32 |
22 |
|
|
|
|
|
|
|
|
| 16 (harped) |
|
|
|
|
80 |
72 |
56 |
42 |
31 |
21 |
|
|
|
|
|
|
|
| 18 (harped) |
|
|
|
|
|
80 |
65 |
50 |
38 |
28 |
|
|
|
|
|
|
|
| 20 (harped) |
|
|
|
|
|
|
74 |
58 |
45 |
34 |
24 |
|
|
|
|
|
|
| 22 (harped) |
|
|
|
|
|
|
80 |
66 |
52 |
40 |
30 |
21 |
|
|
|
|
|
NOTES:
- The standard top flange reinforcement is WWF
8x4-W2.9/W2.9, and the maximum safe uniform load on the flange with this reinforcement is 80 psf. The maximum safe concentrated load is 500 lbs.
- Interpolation between values shown is
acceptable. Do not extrapolate values into the blank spaces of the table.
- These Span-Load Tables are intended as an aid to preliminary sizing. Sound engineering judgement is required for the application of this information to specific design cases.
- Values in the lower left of the table in bold type represent conditions where shear reinforcement is required. See SHEAR in "Design Criteria..." for discussion.
- See "Design Criteria..." for definitions of HIGHLIGHTING. Highlighting not visible on printed copy (screen only).