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MindTap Electrical for Fletcher's Residential Construction Academy: House Wiring, 5th Edition [Instant Access], 4 terms (24 months)
5th Edition
ISBN: 9781337553070
Author: FLETCHER
Publisher: Cengage Learning US
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Question
Chapter 6, Problem 6RQ
To determine
The minimum number of small-appliance branch that must be installed in each dwelling unit and the section in which this information is found.
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Please solve all points
For the I section prestressed concrete beam with a straight tendon shown in Fig
below which is under the prestressing force, and U.D.L. Analyze the stresses at Mid-
span at: A- transfer stage (due to initial prestress P. and self weight wo)
B- at service stage. (due to effective prestress Pe and full loads)
Check stresses with the ACI permissible stresses.
Given:
Initial prestress force Pi = 750 kN
Effective prestress force Pe = 640 kN
Wo (self) = 2.7 kN/m
=
W (D+L) 8 kN/m
e = 130 mm
I 5 10 mm²
fci = 25 MPa (at transfer age), f' = 35 MPa (at service age)
ASECTION 114 000 mm²
W=4.75 kN/m
|-
12 m
F
I
610mm
Kindly help to provide explanation, examples and provide any useful link for citations and learning purposes.
This is regarding building diagnosis.
Chapter 6 Solutions
MindTap Electrical for Fletcher's Residential Construction Academy: House Wiring, 5th Edition [Instant Access], 4 terms (24 months)
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