While modelling plate girder railway & footover bridges I am having to connect multiple members from one girder to another. the problem I am having while analyzing is that I am getting Warnings showing members between same joints. How can I resolve this problem and model plate girder bridges more accurately. Also, if I release the moments in the bracings the results I am getting does not seem to be correct. This is another query I have? I have attached my model along with some gestures, I would also wan't the attached model to be fixed by some one.
Regards
(Please visit the site to view this file)