A bridge girder AB on a simple span of length L = 25 m supports a distributed load of maximum intensity q at mid-span and minimum intensity g/2 at supports A and B that includes the weight of the girder (see figure). 450 mm 32 mm = 25 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 oallew = 110 MPa kN/m (b) solely based on an allowable shear stress Tllow = 50 MPa kN/m (c) accounting for both an allowable bending stress oallow and an allowable shear stress Tallow kN/m

A bridge girder AB on a simple span of length L = 25 m supports a distributed load of maximum intensity q at mid-span and minimum intensity g/2 at supports A and B that includes the weight of the girder (see figure). 450 mm 32 mm = 25 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 oallew = 110 MPa kN/m (b) solely based on an allowable shear stress Tllow = 50 MPa kN/m (c) accounting for both an allowable bending stress oallow and an allowable shear stress Tallow kN/m

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

A bridge girder AB on a simple span of length L = 25 m supports a distributed load of maximum intensity q at mid-span and minimum intensity g/2 at supports A and B that includes the weight of the girder (see figure).
450 mm
32 mm
= 25 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 oallew = 110 MPa
kN/m
(b) solely based on an allowable shear stress Tllow
= 50 MPa
kN/m
(c) accounting for both an allowable bending stress oallow and an allowable shear stress Tallow
kN/m

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