A bridge girder AB on a simple span of length L = 20 m supports a distributed load of maximum intensity q at midspan and minimum intensity g/2 at supports A and B that includes the weight of the...

Extracted text: A bridge girder AB on a simple span of length L = 20 m supports a distributed load of maximum intensity q at midspan and minimum intensity g/2 at supports A and B that includes the weight of the girder (see figure). The girder is constructed of three plates welded to form the cross section shown. 500 mm L= 20 m 18 mm 1600 mm 500 mm (a) Determine the maximum permissible load q based upon an allowable bending stress oallow = 130 MPa. Round to the nearest tenth. kN Gmax = (b) Determine the maximum permissible load q based upon an allowable shear stresS Tallow = 55 MPa. Round to the nearest tenth. kN Gmax m