A symmetrical sag curve passes through a point whose elevation is 45.67 m at a distance of 78 m from the PVC. The elevation of the PVC at station 5+045 is 49.58 m. The grade of the back tangent is -3.5% and the length of curve is 200 m. a. Compute the grade of the forward tangent. b. Where is the lowest point of the curve located from the PVC? If a 1.2-m diameter culvert is placed at the lowest point of the curve with its top buried 0.50 m below the ground, what is the elevation of the invert of the culvert? C.

Structural Analysis
6th Edition
ISBN:9781337630931
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Chapter2: Loads On Structures
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A symmetrical sag curve passes through a point whose elevation is 45.67 m at a distance of 78 m from
the PVC. The elevation of the PVC at station 5+045 is 49.58 m. The grade of the back tangent is -3.5%
and the length of curve is 200 m.
a. Compute the grade of the forward tangent.
b. Where is the lowest point of the curve located from the PVC?
If a 1.2-m diameter culvert is placed at the lowest point of the curve with its top buried 0.50 m
C.
below the ground, what is the elevation of the invert of the culvert?
Transcribed Image Text:A symmetrical sag curve passes through a point whose elevation is 45.67 m at a distance of 78 m from the PVC. The elevation of the PVC at station 5+045 is 49.58 m. The grade of the back tangent is -3.5% and the length of curve is 200 m. a. Compute the grade of the forward tangent. b. Where is the lowest point of the curve located from the PVC? If a 1.2-m diameter culvert is placed at the lowest point of the curve with its top buried 0.50 m C. below the ground, what is the elevation of the invert of the culvert?
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