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