Determine the nominal moment strength, Mn, of the following trapezoidal shape beam. (a) Determine the total area of the concrete compression block, Ac in? (b) Determine the centroid of the concrete compression block measured from top of the beam, yc =- Thickness of compression block, a = in in (c) Determine the centroid of the reinforcing steel bars measured from top of the beam, d = in (d) Compute the nominal moment capacity, Mn ft*kip 24" Normal Weight Concrete f'e = 6 ksi Gr. 80 steel 5" 26" 8 #8 bars 3" .: 16"

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Determine the nominal moment strength, Mn, of the following trapezoidal shape beam.
(a) Determine the total area of the concrete compression block, Ac
in?
(b) Determine the centroid of the concrete compression block measured from top
of the beam, yc
Thickness of compression block, a =
in
in
(c) Determine the centroid of the reinforcing steel bars measured from top of the
beam, d =
in
(d) Compute the nominal moment capacity, Mn
ft*kip
%3D
24"
Normal Weight Concrete
f'e = 6 ksi
Gr. 80 steel
5"
26"
8 #8 bars
3"
3"
16"
Transcribed Image Text:Determine the nominal moment strength, Mn, of the following trapezoidal shape beam. (a) Determine the total area of the concrete compression block, Ac in? (b) Determine the centroid of the concrete compression block measured from top of the beam, yc Thickness of compression block, a = in in (c) Determine the centroid of the reinforcing steel bars measured from top of the beam, d = in (d) Compute the nominal moment capacity, Mn ft*kip %3D 24" Normal Weight Concrete f'e = 6 ksi Gr. 80 steel 5" 26" 8 #8 bars 3" 3" 16"
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