A symmetrical parabolic curve connects two grades of 6% and -4%. It is to passthrough a point “P”on the curve at station 25 + 140 having an elevation of 98.34. If theelevation of the grade of intersection is 100m with a stationing of 25 + 160. Calculate the following: It the curve a sag or a summit? Length the curve Stationing of the highest/lowest point on the curve. Eleavtion of station 25 + 120 on the curve.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A symmetrical parabolic curve connects two grades of 6% and -4%. It is to passthrough a point “P”on the curve at station 25 + 140 having an elevation of 98.34. If theelevation of the grade of intersection is 100m with a stationing of 25 + 160. Calculate

the following:

  1. It the curve a sag or a summit?
  2. Length the curve
  3. Stationing of the highest/lowest point on the curve.
  4. Eleavtion of station 25 + 120 on the curve.
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