AISC Table 3-10
AISC Table 3-10
(OP)
Hello everyone.
I had a question about Table 3-10 of the AISC Steel Manual 14th edition.
I wanted to know what the dashed lines being cut off beyond a certain Lb represented.
For example, on 3-134, a W12x19 member does not extend beyond a Lb of ~10.25'.
Does this mean if I use a W12x19 with a Lb of 12', it will not behave according to the equations in Section F2 and it will not have a flexural capacity of 22 kip-ft (with Cb = 1.0)?
Thank you.
I had a question about Table 3-10 of the AISC Steel Manual 14th edition.
I wanted to know what the dashed lines being cut off beyond a certain Lb represented.
For example, on 3-134, a W12x19 member does not extend beyond a Lb of ~10.25'.
Does this mean if I use a W12x19 with a Lb of 12', it will not behave according to the equations in Section F2 and it will not have a flexural capacity of 22 kip-ft (with Cb = 1.0)?
Thank you.






RE: AISC Table 3-10
Dashed Curve = not the lightest cross section that could be used
Capacities are still correct.
RE: AISC Table 3-10
RE: AISC Table 3-10
The discussion for that table (prior to the table)in the manual suggests a cut off of span/depth = 30. However, the table isn't based on span but Lb so I'm not sure what they are talking about.
For your beam (W12x19) the limit appears to be 1/3 of a span/depth = 30.
RE: AISC Table 3-10
RE: AISC Table 3-10