Part B - Determine the deformation in the left column The steel and concrete in the left column are bonded so that there is no slip. What is the deformation in this column due to the applied load? Express your answer to three significant figures with the appropriate units. ▸ View Available Hint(s) ☐ μА = Value Submit Units ? Part C - Calculate the required diameter of the steel in the second column 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? Express your answer to three significant figures in cm. ▸ View Available Hint(s) d2 = 跖 ΑΣΦ vec ? cm 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 dc = 23 cm. The steel in the left column has a diameter of d₁ = 13 cm. A load of P = 76 kN is applied with L₁ = 1.8 m and L2 = 2.8 m. The height of the columns is h = 2.7 m. The moduli of elasticity for steel and concrete are Es = 200 GPa and Ec = 30 GPa, respectively. dc d₁ Part A - Calculate the load acting on the left column when \evec{P} is applied What is the magnitude of the axial compressive load on the left column, F1? Express your answer to three significant figures in kN. P - dc d₂
Part B - Determine the deformation in the left column The steel and concrete in the left column are bonded so that there is no slip. What is the deformation in this column due to the applied load? Express your answer to three significant figures with the appropriate units. ▸ View Available Hint(s) ☐ μА = Value Submit Units ? Part C - Calculate the required diameter of the steel in the second column 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? Express your answer to three significant figures in cm. ▸ View Available Hint(s) d2 = 跖 ΑΣΦ vec ? cm 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 dc = 23 cm. The steel in the left column has a diameter of d₁ = 13 cm. A load of P = 76 kN is applied with L₁ = 1.8 m and L2 = 2.8 m. The height of the columns is h = 2.7 m. The moduli of elasticity for steel and concrete are Es = 200 GPa and Ec = 30 GPa, respectively. dc d₁ Part A - Calculate the load acting on the left column when \evec{P} is applied What is the magnitude of the axial compressive load on the left column, F1? Express your answer to three significant figures in kN. P - dc d₂
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Part B - Determine the deformation in the left column
The steel and concrete in the left column are bonded so that there is no slip. What is the deformation in this column due to the applied load?
Express your answer to three significant figures with the appropriate units.
▸ View Available Hint(s)
☐
μА
=
Value
Submit
Units
?
Part C - Calculate the required diameter of the steel in the second column
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?
Express your answer to three significant figures in cm.
▸ View Available Hint(s)
d2 =
跖
ΑΣΦ
vec
?
cm
Transcribed Image Text: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 dc = 23 cm. The steel in the left column has a diameter of d₁ = 13 cm. A load of P = 76 kN is applied with L₁ = 1.8 m and L2 = 2.8 m. The height of the columns is h
= 2.7 m. The moduli of elasticity for steel and concrete are Es = 200 GPa and Ec = 30 GPa, respectively.
dc
d₁
Part A - Calculate the load acting on the left column when \evec{P} is applied
What is the magnitude of the axial compressive load on the left column, F1?
Express your answer to three significant figures in kN.
P
- dc
d₂
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