Using the Table Below, what is the approximate value of the match line if k=100, Ec=6x10^6, J=4, and the rest is the same with the example. Concrete elastic modulus, E, (106 Ib/in2) TL 10 TL 20 1200- 1100 4.5 4.0 30- 1000 40 - 900 3.0 800 50 2.2 0.9- 700 60니 600 70 www 20 10 500 80 800 400 200 100 50 Effective modulus of subgrade reaction, k (Ib/in3) 90 100 Example: k = 72 Ib/in E. = 5 x 106 Ib/in² R= 95% (ZR = -1.645) S = 650 Ib/in? J= 3.2 C = 1.0 S, = 0.29 APSI = 4.2 - 2.5 = 1.7 W18 = 5.1 x 106 (18-kip ESAL) Solution: D = 10.0 inches (nearest half-inch, from segment 2) Concrete modulus of rupture, S. (Ib/in?) Load transfer coefficient, J Drainage coefficient, C Match line

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Using the Table Below, what is the approximate value of the match line if k=100,
Ec=6x10^6, J=4, and the rest is the same with the example.
Concrete elastic modulus, E. (106 Ib/in²)
10
20
1200
1100
4.5
4.0
30
1000
40
900
3.0
800
50
2.2
700
60
600-
70
500
80 -
800 400 200 100 50
Effective modulus of subgrade
reaction, k (Ib/in3)
20 10
90
100
Example:
k = 72 Ib/in3
E = 5 x 106 Ib/in? R = 95% (ZR = -1.645)
S = 650 Ib/in?
J= 3.2
S, = 0.29
APSI = 4.2 - 2.5 = 1.7
W18 = 5.1 x 106 (18-kip ESAL)
Solution: D = 10.0 inches (nearest
half-inch, from segment 2)
C4 = 1.0
10 sninpow ajajɔuon
GuIvai) 's 'əunadna
Load transfer
coefficient, J ~
Drainage coefficient, Cí
Match line
Transcribed Image Text:Using the Table Below, what is the approximate value of the match line if k=100, Ec=6x10^6, J=4, and the rest is the same with the example. Concrete elastic modulus, E. (106 Ib/in²) 10 20 1200 1100 4.5 4.0 30 1000 40 900 3.0 800 50 2.2 700 60 600- 70 500 80 - 800 400 200 100 50 Effective modulus of subgrade reaction, k (Ib/in3) 20 10 90 100 Example: k = 72 Ib/in3 E = 5 x 106 Ib/in? R = 95% (ZR = -1.645) S = 650 Ib/in? J= 3.2 S, = 0.29 APSI = 4.2 - 2.5 = 1.7 W18 = 5.1 x 106 (18-kip ESAL) Solution: D = 10.0 inches (nearest half-inch, from segment 2) C4 = 1.0 10 sninpow ajajɔuon GuIvai) 's 'əunadna Load transfer coefficient, J ~ Drainage coefficient, Cí Match line
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