A bridge girder AB on a simple span of length L = 30 m supports a distributed load of maximum intensity q at mid-span and minimum intensity q/2 at supports A and B that indudes the weight of the girder (see figure). 450 mm 32 mm A 16 mm- 1800 mm 32 mm 450 mm The girder is constructed of three plates welded to form the cross section shown. Determine the maximum permissible load q (in kN/m) based upon the following. (a) solely based on an allowable bending stress ao- 110 MPa kN/m (b) solely based on an allowable shear stress llow = 50 MPa kN/m (c) accounting for both an allowable bending stress ollo and an allowable shear stress Tllo kN/m
A bridge girder AB on a simple span of length L = 30 m supports a distributed load of maximum intensity q at mid-span and minimum intensity q/2 at supports A and B that indudes the weight of the girder (see figure). 450 mm 32 mm A 16 mm- 1800 mm 32 mm 450 mm The girder is constructed of three plates welded to form the cross section shown. Determine the maximum permissible load q (in kN/m) based upon the following. (a) solely based on an allowable bending stress ao- 110 MPa kN/m (b) solely based on an allowable shear stress llow = 50 MPa kN/m (c) accounting for both an allowable bending stress ollo and an allowable shear stress Tllo kN/m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A bridge girder AB on a simple span of length L = 30 m supports a distributed load of maximum intensity q at mid-span and minimum intensity q/2 at supports A and B that indudes the weight of the girder (see figure).
450 mm
32 mm
B
30 m
16 mm-
1800 mm
32 mm
450 mm
The girder is constructed of three plates welded to form the cross section shown. Determine the maximum permissible load q (in kN/m) based upon the following.
(a) solely based on an allowable bending stress aallow = 110 MPa
kN/m
(b) solely based on an allowable shear stress tallow = 50 MPa
kN/m
(c) accounting for both an allowable bending stress ollow and an allowable shear stress Tallow
kN/m
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