A forward tangent of +6% was designed to intersect a back tangent of -3% at a proposed underpass along N. Bacalso Avenue so as to maintain a minimum clearance allowed under a bridge which crosses perpendicular to the underpass. A 200 m curve lies on the side of the back tangent while a 100 m curve lies on the side of the forward tangent. The station and elevation of the grade intersection is 12 + 530.20m and 100 m, respectively. The centerline of the bridge falls at station 12 + 575.20m. The elevation of the underside of the bridge is 117.48 m. If the bridge is 10m wide, determine the: a. Vertical Clearance on the center, left side, and right side of the bridge. b. Minimum clearance of the bridge. c. Location, station, and elevation of the drain cover grating to ensure full drainage of storm water.
A forward tangent of +6% was designed to intersect a back tangent of -3% at a proposed underpass along N. Bacalso Avenue so as to maintain a minimum clearance allowed under a bridge which crosses perpendicular to the underpass. A 200 m curve lies on the side of the back tangent while a 100 m curve lies on the side of the forward tangent. The station and elevation of the grade intersection is 12 + 530.20m and 100 m, respectively. The centerline of the bridge falls at station 12 + 575.20m. The elevation of the underside of the bridge is 117.48 m. If the bridge is 10m wide, determine the: a. Vertical Clearance on the center, left side, and right side of the bridge. b. Minimum clearance of the bridge. c. Location, station, and elevation of the drain cover grating to ensure full drainage of storm water.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A forward tangent of +6% was designed to intersect a back tangent of -3% at a proposed underpass along N. Bacalso Avenue so as to
maintain a minimum clearance allowed under a bridge which crosses perpendicular to the underpass. A 200 m curve lies on the side
of the back tangent while a 100 m curve lies on the side of the forward tangent. The station and elevation of the grade intersection
is 12 + 530.20m and 100 m, respectively. The centerline of the bridge falls at station 12 + 575.20m. The elevation of the underside of
the bridge is 117.48 m. If the bridge is 10m wide, determine the:
a. Vertical Clearance on the center, left side, and right side of the bridge.
b. Minimum clearance of the bridge.
c. Location, station, and elevation of the drain cover grating to ensure full drainage of storm water.
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