Statics and Mechanics of Materials
2nd Edition
ISBN: 9780073398167
Author: Ferdinand P. Beer, E. Russell Johnston Jr., John T. DeWolf, David Mazurek
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 3.4, Problem 75P
Determine the single equivalent force and the distance from point A to its line of action for the beam and loading of (a) Prob. 3.73b, (b) Prob. 3.73d, (c) 3.73e.
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A beam (AB) is supported by a roller at B and a pin at A. It is subjected to the following uniform distributed loads.
Determine the reaction force at roller B.
of
9 kN/m
6 kN/m
3 kN/m
B
15m
3 m
1.5 m
Select one:
O a. 186.875 kN upward
O b. 16.875 kN downward
OC. 186.875 kN downward
O d. 16.875 kN upward
Two live loads of 7 KN and 9 KN separated 5 m apart,
are to cross a simple beam. Also, a uniform live load of 6 KN/m,
6 m long, is expected to cross the same beam. The simple
supports are marked A and B and a point C is located 4 m from
A. Determine: (a) the maximum moment at C due to the two
concentrated live loads if the length of the beam is (a.1) 8.4 m;
(a.2) 10 m.
(b) The maximum moment at C due to the uniform live load if
the length of the beam is (b.1) 8.4 m; (b.2) 10 m.
(c) The maximum moment in the beam due to the combined
effects of the two concentrated live loads and the uniform live
loads if the length of the beam is (c.1) 8.4 m; (c.2) 10 m.
part (c), I am asking for the
ABSOLUTE maximum moment in the beam due to the
combined effects of the two live loads and the uniform
live load. Please be guided and informed accordingly.
Good luck!
3.1 A uniform horizontal beam has a length of 8 m and mass of 500 kg. The beam rests on two supports overhanging one by a distance x while the other is at the extreme right-hand end. The loading is 5 tonnes at the left-hand end, 6 tonnes at the mid-point of the beam and 7 tonnes 1 metre from the right-hand end. Determine the value of x if the reaction at the left-hand support is to be twice that at the right-hand support.- Show free-body-diagram and all your workings.
Chapter 3 Solutions
Statics and Mechanics of Materials
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