Answered: 10. A +2.8% grade at 1 + 200 is to be…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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10. A +2.8% grade at 1 + 200 is to be connected to a -4.2% grade at 1+600 using a symmetrical parabolic curve. The tangents intersect at elevation 178.53m. Compute the distance of the highest point from BVC. a) 200 m c) 160 m b) 240 m d) 178.53 m 11. A +2.8% grade at 1 + 200 is to be connected to a -4.2% grade at 1+600 using a symmetrical parabolic curve. What is the vertical distance of Pl from BVC? a) 4.8 m c) 2.8 m b) 5.6 m d) 8.4 m 12. A sag curve is composed of two parabolic curves. BVC and EVC have elevations 250.30m and 246.30m respectively. The grade of the tangents is -3.5% at BVC (1+300) and +5.5% at EVC (1+800). What is the grade of the common tangent? a) 1.25% c) 0.008% b) 0.08% d) 0.8%

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