AISC13th, Web crippling at Beam Ends question
AISC13th, Web crippling at Beam Ends question
(OP)
There is a conflicts in AISC-13th: on page 9-19, Web crippling at Beam Ends, at bottom table, for distance x>=d/2, only R3 is multiplied by 2, R4 does not apply factor 2. But on Table 9-4 from page 9-38 to 9-51, both R3 and R4 are to be multiplied by 2 when distance x>=d/2.
Table 9-4 conflicts with formulas on page 9-19.
Is table 9-4 wrong?
Table 9-4 conflicts with formulas on page 9-19.
Is table 9-4 wrong?






RE: AISC13th, Web crippling at Beam Ends question
I think the equation shown at the bottom of page 9-19 is missing a couple of parentheses. If you look at section J10.3 it is obvious that equation J10-4 uses a 0.8 term on the whole vs. the other equations.
Probably should notify AISC about this - it isn't in the latest errata that I have for the manual.
RE: AISC13th, Web crippling at Beam Ends question
Comparing formulas in 9-18 with formula J10-4. it seems R4 term in page 9-19 bottom formulas does miss a factor 2. Right?
RE: AISC13th, Web crippling at Beam Ends question
As I said...if you add a parenthesis around everything but the 2 then it works ok.