A 3% ascending grade meets a descending grade at the vertex at sta. 20+100 and at elevation 120 m. The symmetrical parabolic curve connecting the tangents passes thru a point at sta. 20+130 with an elevation of 117.525 m. If the highest point on the curve is located 84 m from PT, what is the length
A 3% ascending grade meets a descending grade at the vertex at sta. 20+100 and at elevation 120 m. The symmetrical parabolic curve connecting the tangents passes thru a point at sta. 20+130 with an elevation of 117.525 m. If the highest point on the curve is located 84 m from PT, what is the length
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![A 3% ascending grade meets a descending
grade at the vertex at sta. 20+100 and at
elevation 120 m. The symmetrical parabolic
curve connecting the tangents passes thru
a point at sta. 20+130 with an elevation of
117.525 m. If the highest point on the curve
is located 84 m from PT, what is the length
of the curve connecting the tangents?
Determine also the grade of the
descending tangent and the elevation of
the highest point on the curve.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F74f9a0f0-6b73-4fda-9a5f-44809df962b9%2F1bf7b484-3826-41e4-9b54-48bb5960fb66%2Fvkwnwlg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A 3% ascending grade meets a descending
grade at the vertex at sta. 20+100 and at
elevation 120 m. The symmetrical parabolic
curve connecting the tangents passes thru
a point at sta. 20+130 with an elevation of
117.525 m. If the highest point on the curve
is located 84 m from PT, what is the length
of the curve connecting the tangents?
Determine also the grade of the
descending tangent and the elevation of
the highest point on the curve.
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