Dear Seth,
In the ACI 318-11, the effective flange width was taken the smallest of three limitations (Section 8.12) . The first one is limited to 1/4 of the span length, which means that if we have a span of 4 m and wide beam of 1.2 m width the effective flange width will be 1 m less than the web width. This is also done exactly by Ram Concept for this situation.
In the ACI 318-14, the effective flange width was taken the smallest of three limitations (Section 6.3.2) . The same condition was changed to web width plus 1/8 of the span length from each side of the web (bw+L/4 - in total), which means that if we have a span of 4 m and wide beam of 1.2 m width the effective flange width will be (1.2+1=2.2 m) . This is NOT done by Ram Concept according to ACI 318-14 for this situation. Ram Concept still determining the same flange width as ACI 318-11.
Is it right ? or I have to edit the design strip manually to satisfy the ACI 318-14?
Thank You again for Your help.
BR
Nasr
You can confirm this with a test case but it looks like all the ACI codes do the same thing. Column strip boundary poly-lines can always be used to establish the desired strip width.
Answer Verified By: nasr younis