Nonprismatic Beams veered cantilever beam AB of length L has square cross sections and supports a concentrated load P at the nd Isee figure part (a)]. The width and height of the beam vary linearly from ha at the free end to hp at the fixed end. Determine the distance x from the free end A to the cross section of maximum bending stress if ha 3h4. %3D (a) What is the magnitude omax of the maximum bending stress? What is the ratio of the maximum stress to the largest stress B at the support? (b) Repeat (a) if load P is now applied as a uniform load of intensity q = PIL over the entire beam, A is restrained by a roller support and B is a sliding support [see figure, part (b)]. q = P/L A hA B hB Sliding support (a) (b) PROP 30

Structural Analysis
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Chapter2: Loads On Structures
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Nonprismatic Beams
O A anered cantilever beam AB of length L has square cross sections and supports a concentrated load P at the
d Isee figure part (a)]. The width and height of the beam vary linearly from ha at the free end to hp at the
fixed end.
Determine the distance x from the free end A to the cross section of maximum bending stress if he = 3hA.
(a) What is the magnitude omax of the maximum bending stress? What is the ratio of the maximum stress to
the largest stress B at the support?
(b) Repeat (a) if load P is now applied as a uniform load of intensity q = PIL over the entire beam, A is
restrained by a roller support and B is a sliding support [see figure, part (b)].
q = PIL
B
A
ha
В
A
hB
P
Sliding
support
L.
(a)
(b)
PROR 30
Transcribed Image Text:Nonprismatic Beams O A anered cantilever beam AB of length L has square cross sections and supports a concentrated load P at the d Isee figure part (a)]. The width and height of the beam vary linearly from ha at the free end to hp at the fixed end. Determine the distance x from the free end A to the cross section of maximum bending stress if he = 3hA. (a) What is the magnitude omax of the maximum bending stress? What is the ratio of the maximum stress to the largest stress B at the support? (b) Repeat (a) if load P is now applied as a uniform load of intensity q = PIL over the entire beam, A is restrained by a roller support and B is a sliding support [see figure, part (b)]. q = PIL B A ha В A hB P Sliding support L. (a) (b) PROR 30
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