B. Three high-strength concrete poles, with an effective cross-sectional area of 40,000 mm? and a length of 2 m, support a stiff steel plate. The center post is 1 mm shorter than the others before the load P is applied. If the concrete's allowed compressive stress is 20 MPa, calculate the maximum load that can be carried. E = 30 GPa for P %3D concrete.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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B. Three high-strength concrete
poles, with an effective cross-sectional
area of 40,000 mm? and a length of 2 m,
support a stiff steel plate. The center
post is 1 mm shorter than the others
before the load P is applied. If the
concrete's allowed compressive stress
is 20 MPa, calculate the maximum load
that can be carried. E 30 GPa for
P
concrete.
L.
Transcribed Image Text:B. Three high-strength concrete poles, with an effective cross-sectional area of 40,000 mm? and a length of 2 m, support a stiff steel plate. The center post is 1 mm shorter than the others before the load P is applied. If the concrete's allowed compressive stress is 20 MPa, calculate the maximum load that can be carried. E 30 GPa for P concrete. L.
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