Hey, I have a composite deck..When I check a particular beam's report I get a 1.4D Mu= 528.6 kip-ft and in the diagrams I can the dead moment 1.4D is 702.07kip-ft. Could you please let me know why the values are different? Please see attached file. Thanks!
PDF
The pre-composite check uses the construction dead load which may not be all of the dead load. It looks like the uniform loads are equal but the point loads have CDL < DL.
I see, so what if the final dead load is higher and the load combination 1.4DL is more than 1.2D+1.6LL , will RAM give me a warning or design for 1.4D (considering post composite) ?
Right, if the LL is very small 1.4 DL could control even for composite design. You'll see that in the controlling moments section if it occurs.
Okay, sounds good! Thanks!