What is the magnitude of the compressive force on the left plumb in kN? F1 the steel and the left column concrete are bonded, what is the deformation due to applied load? part 3 is pictured
What is the magnitude of the compressive force on the left plumb in kN? F1 the steel and the left column concrete are bonded, what is the deformation due to applied load? part 3 is pictured
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
What is the magnitude of the compressive force on the left plumb in kN? F1
the steel and the left column concrete are bonded, what is the deformation due to applied load?
part 3 is pictured
Transcribed Image Text:The design requires that the platform remain horizontal. Because the external load is not centered, and
the column forces are not the same, the diameter of the steel portion of the second column must be
calculated. What diameter should the steel portion of the column on the right have so that the platform
remains horizontal when the load is applied?
A
Express your answer to three significant figures in cm.
Transcribed Image Text:Learning Goal:
As shown, two composite columns of steel and concrete are used to support a rigid platform. The columns
are cylindrical, with a steel bar encased in concrete. The outer diameter of each column is de = 20 cm. The
steel in the left column has a diameter of d₁ = 10 cm. A load of P = 74 kN is applied with L1 = 1.8 m and
L2= 2 m. The height of the columns is h = 2 m. The moduli of elasticity for steel and concrete are Es
200 GPa and E = 30 GPa, respectively.
de
d₁
<L₁-
P
L₂
de
d₂
2/
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