Compute the nominal moment strength (Mn), strength reduction factor (6) and > Mn for therectangular beam shown below:b-14 in, h=22 in, d= 19.5 inf=4000 psify=60,000 psi, Es=29,000,000 psfRebar-4-No. 1422 in,4 No 14 bars14 inTd-19.5 inNote: First you need to identify if the section is under reinforced or over reinforced.

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Engineering

Civil Engineering

Compute the nominal moment strength (Mn), strength reduction factor (6) and 6 Mn for the rectangular beam shown below:

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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Question

Compute the nominal moment strength (Mn), strength reduction factor (6) and > Mn for the
rectangular beam shown below:
b-14 in, h=22 in, d= 19.5 in
f=4000 psi
fy=60,000 psi, Es=29,000,000 psf
Rebar-4-No. 14
22 in,
4 No 14 bars
14 in
T
d-19.5 in
Note: First you need to identify if the section is under reinforced or over reinforced.

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Step 1: Introduce the problem statement

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Step 2: State condition for strength reduction factor

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Step 3: Compute depth of N.A.

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Step 4: Compute strain in steel

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Step 5: Classify the beam

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Step 6: Determine nominal moment capcity

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