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A section of a reinforced concrete elevator shaft is shown in the figure. Compute the following: a. Centroid of section; b. Centroidal Moments of Inertia; and c. Rigidity about the centroidal axes. Consider the effect of shear deflection. Assume h = 15m, P = 1000 kN, and f'c = 24 MPa.    ..need original and complete answe

A section of a reinforced concrete elevator shaft is shown in the figure. Compute the following: a. Centroid of section; b. Centroidal Moments of Inertia; and c. Rigidity about the centroidal axes. Consider the effect of shear deflection. Assume h = 15m, P = 1000 kN, and f'c = 24 MPa.    ..need original and complete answe

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A section of a reinforced concrete elevator shaft is shown in the figure. Compute the following:

a. Centroid of section;

b. Centroidal Moments of Inertia; and

c. Rigidity about the centroidal axes. Consider the effect of shear deflection. Assume h = 15m, P = 1000 kN, and f'c = 24 MPa. 

 

..need original and complete answer

 

3.24 P 0.40 2.83 1.12 1.12
Transcribed Image Text:3.24 P 0.40 2.83 1.12 1.12
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where di you get (1.62- .2) and (.86)

13x = 0.4x0.72³ 12 +0.4 x 0.72 × (0.86)² = 0.2254464
Transcribed Image Text:13x = 0.4x0.72³ 12 +0.4 x 0.72 × (0.86)² = 0.2254464
ILX = 2.83x0.4³ +2.83 x 0.4 x (1.62 -0. 2)² = 2.297658133 12
Transcribed Image Text:ILX = 2.83x0.4³ +2.83 x 0.4 x (1.62 -0. 2)² = 2.297658133 12
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explain highlighted portion

X coordinate: X = X 2A, X₁+A₂X₂+24₂X₂ 24₁ +4₂ +243 2x(2.83x0.4)x+(2.44x0.4)x+2x(0.72x0.4)x2.63 2x(2.83x0.4)+(2.44x0.4)+2x(0.72x0.4) 2 2
Transcribed Image Text:X coordinate: X = X 2A, X₁+A₂X₂+24₂X₂ 24₁ +4₂ +243 2x(2.83x0.4)x+(2.44x0.4)x+2x(0.72x0.4)x2.63 2x(2.83x0.4)+(2.44x0.4)+2x(0.72x0.4) 2 2
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