Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN: 9781337094740
Author: Segui, William T.
Publisher: Cengage Learning
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Chapter 10, Problem 10.7.9P
To determine
(a)
The design of the girder cross section by using LRFD.
To determine
(b)
The location and size of intermediatestiffeners.
To determine
(c)
The required size of bearing stiffeners at B, C and D
To determine
(d)
The design of all the welds.
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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
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 q/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.
(a) Determine the maximum permissible load q based upon an allowable bending stress sigma = 140 MPa. Round to the nearest tenth.
qmax = ___ kN/m
(b) Determine the maximum permissible load q based upon an allowable shear stress Tau = 60 MPa. Round to the nearest tenth.
qmax = ___ kN/m
W
W.
W
Mp
0.8 Mp
Mp
The above figure shows a continuous beam loaded
with concentrated loads 'W' at the centre of each
span. The value of 'W' at collapse will be
Chapter 10 Solutions
Steel Design (Activate Learning with these NEW titles from Engineering!)
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