2. The vertical clearance of the parabolic sag curve of the newly constructed underpass is to be determined. If the maximum height of the driver's eye that could utilized such underpass measured from the pavement is 1.37 meters while that of the object at the instant of perception is 107 centimeters. The length of the parabolic curve is 345.03 meters and that of the passing sight distance is 335.28 meters. The designed grade of the back tangent is -5% while the forward tangent has a designed grade of +3%.

2. The vertical clearance of the parabolic sag curve of the newly constructed underpass is to be determined. If the maximum height of the driver's eye that could utilized such underpass measured from the pavement is 1.37 meters while that of the object at the instant of perception is 107 centimeters. The length of the parabolic curve is 345.03 meters and that of the passing sight distance is 335.28 meters. The designed grade of the back tangent is -5% while the forward tangent has a designed grade of +3%.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A spiral 80m long connects a tangent with a 7° 30' circular curve. If the stationing of the T.S. is 12+000,and the gauge of the tract on the curve is 1.5m.Determine the following:(a) the elevation of the outer rail at the midpoint, if the velocity of the fastest train that can pass over thecurve is 60kph,(b) the spiral angle at the first quarter point,(c) the deflection angle at the end point, and(d) the offset from the tangent at the second quarter point.
A 618m equal tangent crest vertical curve has PVC at Sta 19+218 and at elevation 177m. The initial grade is 4.05% and the final grade is -6.26%. Determine the elevation (m) of PVI. Round your answer to 3 decimal places.
A 777m equal tangent crest vertical curve has PVC at Sta 16+430 and at elevation 115m. The initial grade is 7.9% and the final grade is -3.3%. Determine the elevation (m) of PVT.
A +4.0% grade intersects a -3.0% percent grade at PVI Sta. 222+00 and Elevation 300.00 on a two-lane highway with a design speed of 45 mph. Assume AASHTO Standards. 1. Determine the minimum length for the curve that is designed to meet passing sight distance using K-value method 2. Determine the Station and Elevation of the PVC
A -1% grade meets a +3% grade at sta. 12+00 and elevation 520 ft. by a vertical curve of length 200 ft. Calculate the following: i. K and r ii. Station of PVC and PVT iii. Elevation of point at a distance, L/4, from PVC and PVT iv. station of turning point v. elevation of turning point vi. elevation of mid-point of the curve
1. An upgradient of 2.5% meets a downgradient of 2% at station kilometer 10+834.26 and at elevation of 64.46 m. The length of vertical curve is 140 m. Calculate ; a) Elevations on the curve at even 25 m. St. Km.s b) Elevations on the curve using 25 m. from PVC and PVT c) St. Km. and elevation of the highest point on the curve.
PLEASE PROVIDE COMPLETE SOLUTION THANKS
3. A grade of-8% id followed by a grade of 3%, the grade intersecting at station 11+ 020 of elevation 423. 10 m. The change of grade is restricted to 0.5% in 25 meters. a. Compute the length of vertical parabolic curve b. Solve the lowest point of the curve from the P.T. c. Calculate the elevation at station 11+ 000.
A -2.5% grade intersects a 4% grade at sta. 5 + 100 at elev. 50 meters. Compute the stoppingsight distance.Design velocity = 75 kphCoefficient of friction between pavement and tires = 0.15
please be sure answer is correct.
ASAP PLS
9