Residential Construction Academy: House Wiring (MindTap Course List)
5th Edition
ISBN: 9781337402415
Author: Gregory W Fletcher
Publisher: Cengage Learning
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Chapter 1, Problem 8RQ
To determine
The types of extinguishers that should not be used on electrical fires.
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Compute for the stresses (initial, const and final stage)
and check for compliance in NSCP provisions.
Also compute the following:
1. Compute and check if the section is Uncracked,
Transition or Cracked as per NSCP.
2. Compute for its flexural capacity and check if it
could carry the given load.
BEAM SECTION
NOT TO SCALE
1400mm
300 $1098 400 */ 400*300*
300
200
300
100
ORIGINAL SECTION/PRECA
CAST-IN-PLACE (CIP) PART
PRECAST
LOADING AT SERVICE
M
• 21 KN (DEAD LOAD ONLY)
21KN
4.75m
9.25m
CIVEN DATA
STRANDS:
12-02 AT 120KN/STRAND (GOMM FROM BOTTOM)
8-2 AT 120HN/STRAND (120mm FROM BOTTOM)
fc 42.5 MPa (BEAM)
fc 38 MPa (CIP)
f'a = 80% or fa
fp-1860 MPa
ESTRANDS 1976Pa
OONG 23.6/m³
LOES 1-8%
Loss 18%
APPLY 3M LIVE LOAD AT CONST. PHASE
Please explain all your steps. Thank you.
10000
Quizl:Design a grit chamber for a horizontal velocity 250 mm/s, minimum flow
5,000 m³/day, maximum 20,000 m³/day, average flow is 12,500m³/day, S.O.R=
0.017 m/s, For a parabolic channels A =2/3 WD, detention time = 1 min
Q
Ac == HxW
vs for inorganic particles = SOR
As = LxW
As
V=Qxt=LxWxH
Z=CxW2
Q (m³/day) |
Ac (m²)
W (m)
| Z (m)
Chapter 1 Solutions
Residential Construction Academy: House Wiring (MindTap Course List)
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