1917 RR Truss Rating
1917 RR Truss Rating
(OP)
I am looking at a 1917 RR Bridge Stress sheet, and it shows the net section properties, gross section properties and "bal". Do any of you know what "bal" stands for in the stress table? I have never seen this listed before on other old plans for bridges I have rated.
Thank you.
Thank you.
RE: 1917 RR Truss Rating