SITUATION. 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 transition curve in the grade line, it is neces sary to use a Curve that lie s 200-mo

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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SITUATION. 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
transition 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 station of the
beginning of the curve (200-m side) is
10+000 and its elevation is 228 m.
If the uphill edge of the underside of the
bridge is at station 10+220 and at elevation
229.206 m, what is the vertical clearance
under the bridge at this point?
Transcribed Image Text:SITUATION. 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 transition 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 station of the beginning of the curve (200-m side) is 10+000 and its elevation is 228 m. If the uphill edge of the underside of the bridge is at station 10+220 and at elevation 229.206 m, what is the vertical clearance under the bridge at this point?
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