6.2 Determine the instantaneous and long-term deflection of the free end of a 12-ft-span cantilever beam for each of the following load conditions. Assume that only dead loads are sustained, and the dead loads

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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6.2 Determine the instantaneous and long-term deflection of the free end of a 12-ft-span cantilever beam for
each of the following load conditions. Assume that only dead loads are sustained, and the dead loads
No.
C
-8' 0"-
(2.4 m)
Figure 6.13
Problem 6.2.
include the self-weight of the beams. Use f = 4 ksi, fy = 60 ksi, and a time limit of more than 5 years.
Refer to Fig. 6.13.
d
(in.)
h
(in.)
P₁
L
b
A'
S
(in.)
(in.²)
12
19.5
23
8 no. 8
2 no. 8
1.6
Note h-d=2.5 in. indicates one row of bars, whereas h-d = 3.5 in. indicates two rows of bars. Concentrated
loads are placed as shown.
- 4' 0"-
(1.2 m)
As
(in.²)
Po
WD
(K/ft)
Ро
W₂
(K/ft) (K)
2.4
P₁
(K)
Transcribed Image Text:6.2 Determine the instantaneous and long-term deflection of the free end of a 12-ft-span cantilever beam for each of the following load conditions. Assume that only dead loads are sustained, and the dead loads No. C -8' 0"- (2.4 m) Figure 6.13 Problem 6.2. include the self-weight of the beams. Use f = 4 ksi, fy = 60 ksi, and a time limit of more than 5 years. Refer to Fig. 6.13. d (in.) h (in.) P₁ L b A' S (in.) (in.²) 12 19.5 23 8 no. 8 2 no. 8 1.6 Note h-d=2.5 in. indicates one row of bars, whereas h-d = 3.5 in. indicates two rows of bars. Concentrated loads are placed as shown. - 4' 0"- (1.2 m) As (in.²) Po WD (K/ft) Ро W₂ (K/ft) (K) 2.4 P₁ (K)
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