I am doing analysis for an existing structure which has some wide flange/column sections fabricated from plates, which I have created a user table for.
I notice when viewing the 3D rendering, or full sections view, the members created using these sections are offset compared to built in members that share a node.
It is as if the centroid of the section has been determined at 1/4 or 1/3 of the section height instead of 1/2 (all sections are symmetric so NA should be at half height).
I created these from the create user table dialogue, but here is the user table section from my input file in case anyone can see a mistake?:
START USER TABLE
TABLE 1
UNIT MMS NEWTON
WIDE FLANGE
FAB308X200
7072 308 8 200 12 1.20468e+008 1.60121e+007 278869 2464 3200 200 12
FAB314X250
8320 314 8 250 12 1.53137e+008 3.12624e+007 337493 2512 4000
FAB316X240
9952 316 8 240 16 1.88235e+008 3.68761e+007 703829 2528 5120
FAB250X300
10760 250 8 300 15 1.31524e+008 6.75094e+007 712547 2000 6000
FAB314X300
21048 314 12 300 30 3.80689e+008 1.35037e+008 5.5463e+006 3768 12000
FAB200X200
7360 200 8 200 15 5.47253e+007 2.00073e+007 479013 1600 4000
I have initially only defined one flange since they are both the same, as you can see for the first member I explicitly defined the other flange in case this was causing the section to be computed wrongly but this does not seem to have made any difference. I did not use the composite flange or cover plate sections of the dialogue.
Any ideas?