7. A -3% grade meets a +5% grade near an underpass. In order to maintain the minimum clearance allowed under the bridge and at the same time introduce a vertical transitioning curve in the grade line, it is necessary to use a curve that lies 200-m on one side of the vertex of the straight grade and 100-m on the other. The stationing of the beginning of the curve (200-m side) is 10+000 and elevation is 228m. a.) Determine the stationing of the lowest point of the curve. b.) Determine the elevation at STA 10+040. c.) If the uphill edge of the underside of the bridge is at station 10+220 and at elevation 229.206m, what is the vertical clearance under the bridge at this point?

7. A -3% grade meets a +5% grade near an underpass. In order to maintain the minimum clearance allowed under the bridge and at the same time introduce a vertical transitioning curve in the grade line, it is necessary to use a curve that lies 200-m on one side of the vertex of the straight grade and 100-m on the other. The stationing of the beginning of the curve (200-m side) is 10+000 and elevation is 228m. a.) Determine the stationing of the lowest point of the curve. b.) Determine the elevation at STA 10+040. c.) If the uphill edge of the underside of the bridge is at station 10+220 and at elevation 229.206m, what is the vertical clearance under the bridge at this point?

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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