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
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
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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