A symmetrical parabolic curve passes through point A whose elevation is 23 23m at a distance of 54 meters from PC The elevation of the P.C. at station 4+100 is 22.56m. The grade of the back tangent is +2% and the length of the curve is 120m. Determine the grade of the forward tangent a. -2.3% b. -1.4% c. -3.3% d. 2.5%
A symmetrical parabolic curve passes through point A whose elevation is 23 23m at a distance of 54 meters from PC The elevation of the P.C. at station 4+100 is 22.56m. The grade of the back tangent is +2% and the length of the curve is 120m. Determine the grade of the forward tangent a. -2.3% b. -1.4% c. -3.3% d. 2.5%
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A symmetrical parabolic curve passes through point A whose elevation is 23 23m at a distance of 54 meters from PC The elevation of the P.C. at station 4+100 is 22.56m. The grade of the back tangent is +2% and the length of the curve is 120m.
Determine the grade of the forward tangent
a. -2.3%
b. -1.4%
c. -3.3%
d. 2.5%
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