Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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A horizontal curve is to be designed to connect two tangents on a rural principal arterial with a
design speed of 110 km/h. The station of the BC is 545+13.65. It is expected that an existing
building will be located at a distance of 15 m from the centerline of the inside lane. Determine the minimum radius that will satisfy the sight distance and superelevation requirements.
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- For a total intersection angle between back and forward tangents of 26° and a degree of curve of 3°, determine T, E, and Rarrow_forwardA delivery truck passes thru the expressway exit ramps at a design velocity of 50 kph. connects with a local road to allow ram traffic to turn right without stopping at an acceleration of 1.57 m/sq.s. The turning roadway has stabilized shoulders on both sides and provides for a one-lane one-way operation with no provisions for a passing stalled vehicle. Super elevation on the turning roadway is 0.08. Determine the minimum radius of curvature for the ramp in meters.arrow_forwardA 3% grade on a principal arterial road intersects with a -2% grade at station (335+54.5) at an elevation of 323 ft. If the design speed is 60 mph, design the minimum vertical curve length, L Fast please handwritten only fast fastarrow_forward
- A curve of radius 250 ft and e 0.08 is located at a section of an existing rural highway, which restricts the safe speed at this section of the highway to 50% of the design speed. This drastic reduction of safe speed resulted in a high crash rate at this section. To reduce the crash rate, a new alignment is to be designed with a horizontal curve. Determine the minimum radius of this curve if the safe speed should be increased to the design speed of the highway. Assume fs= 0.17 for the existing curve, and the new curve is to be designed with e = 0.08arrow_forwardA horizontal curve is being designed to connect two tangents that intersect on a rural collector road with a specified design volume of 2500 veh/day (i.c. design speed 60 mph). It is expected that, because of right-of-way restriction, a large billboard will be placed at a distance of 50 ft from the centerline of the inside lane. If the terrain can be described as level and only a minimal amount of snow is expected on the road, determine the minimum radius of curve. Assume maximum superelevation rate (e) of 0.1 and fs=0.12. Ans: 1090 ftarrow_forwardThere is a need for conducting a design check for a horizontal curve (flat terrain) for an intermediate speed highway in rural Victoria. Given the design speed is 80kmph and superelevation is 7%. The provided horizontal curve radius is 700m. Would the designed curve radius will be sufficient to attain the superelevation? If not, what would be the correct radius for horizontal curve? When suggesting a new radius please check and make sure that the provide superelevation is higher (>7%) than required.arrow_forward
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