A welded plate girder of Grade S275 steel carries two concentrated loads transmitted from 254x254 UC 107 columns at the third points. The columns rest on the top flange and the loads are each 400 kN dead load and 250 kN imposed load, respectively. The plate girder is 12 m span and is simply supported at its ends. The compression flange has adequate lateral restraint at the points of concentrated loads and at the supports. Assume that the weight of the girder is 4 kN/m and that the girder is supported on brackets at each end. Assuming that the depth limit is 1400 mm for the plate girder, (a) draw the shear force diagram; (b) draw the bending moment diagram, (c) estimate the optimum depth for the plate girder; (d) calculate the flange area. Assume that the flange plates are less than 16mm for a steel grade of 275 N/mm2.

A welded plate girder of Grade S275 steel carries two concentrated loads transmitted from 254x254 UC 107 columns at the third points. The columns rest on the top flange and the loads are each 400 kN dead load and 250 kN imposed load, respectively. The plate girder is 12 m span and is simply supported at its ends. The compression flange has adequate lateral restraint at the points of concentrated loads and at the supports. Assume that the weight of the girder is 4 kN/m and that the girder is supported on brackets at each end. Assuming that the depth limit is 1400 mm for the plate girder, (a) draw the shear force diagram; (b) draw the bending moment diagram, (c) estimate the optimum depth for the plate girder; (d) calculate the flange area. Assume that the flange plates are less than 16mm for a steel grade of 275 N/mm2.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter10: Plate Girders

Section: Chapter Questions

Problem 10.7.7P

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