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
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
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![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?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9019da7f-9cf5-472d-ab50-4ed8d5ab5005%2Fc9d56a40-64a9-4863-9e01-7d5f102fcff6%2Fmgtp7ee_processed.png&w=3840&q=75)
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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