The document summarizes the design of a welded plate girder with the following specifications: - Simply supported span of 30m - Uniformly distributed load of 120kN/m plus two point loads of 1000kN each at 10m from supports - Main dimensions and reinforcements of the girder are calculated including web, flange plates, stiffeners, and connections.

2. DESIGN A WELDED PLATE GIRDER FOR A SIMPLY SUPPORTED GIRDER OF SPAN 30 M. SUBJECTED TO THE SUPER IMPOSED LOAD EXCLUDING SELF WEIGHT OF GIRDER 120 KN/M. CARRYING TWO POINT LOAD 1000 KN AT 10 M FROM EACH SUPPORT. DATA= A Welded Plate Girder Span of the Girder- 30 M. UDL- 120 KN/M. Points loads- 1000 KN.

3. SOLUTION = Self Weight Of The Girder (w)- W / 300 Total Load On The Beam = 1000+1000+120*30 (w) = 5600 KN w = 5600 / 3000 Self Weight of the Girder = 18.66 KN/M = 19 KN/M CALCULATE REACTION RA + RB = 1000+1000+139*30 RA + RB = 6170 …………………………….(1) Take moment about A - RB*30+1000*20+1000*10+139*30*15 =0 - RB*30 = -92550 RB = 3085 KN Put in a equation (1) RA = 3085 KN