Architectural Drafting and Design (MindTap Course List)
7th Edition
ISBN: 9781285165738
Author: Alan Jefferis, David A. Madsen, David P. Madsen
Publisher: Cengage Learning
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Chapter 19, Problem 19.6Q
To determine
The definition of GFCI duplex convenience outlet.
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Q1/ A reinforced concrete beam has the following properties:
Beam width (b)-300 mm
Beam height (h)-600 mm
•
Effective depth (d) - 525 mm
⚫ Concrete compressive strength (f'c)=27 MPa
⚫ Steel yield strength (fy)=420 MPa
.
Steel reinforcement area (As) 1473 mm²
•
Modular ratio (n) = 8.2
Calculate the location of the neutral axis and determine if the section is in the uncracked or cracked
stage when subjected to a bending moment of 81 kN m. Use the working stress method.
Q2/ The simply supported reinforced concrete beam with dimensions and loading as shown in the
figure below. Find the maximum allowable load (w) that the beam can carry (neglect the beam
weight) without exceeding the allowable stress in steel & concrete. If f', -30 MPa and fy - 420
MPa. Use the working stress method.
w kN/m
6 m
B
009
4425
300 was
100
Q1/ A reinforced concrete beam has the following properties:
•
Beam width (b) 300 mm
Beam height (h) = 600 mm
•
Effective depth (d)- 525 mm
.
Concrete compressive strength (f'e) - 27 MPa
•
Steel yield strength (fy)=420 MPa
•
Steel reinforcement area (As) 1473 mm²
=
•
Modular ratio (n)=8.2
Calculate the location of the neutral axis and determine if the section is in the uncracked or cracked
stage when subjected to a bending moment of 81 kN m. Use the working stress method.
Chapter 19 Solutions
Architectural Drafting and Design (MindTap Course List)
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