A-3.3% grade meets a +6.6% grade at a vertex (El, 144.37m) directly under an overpass bridge having underside elevation of 156.07 m. A 6.7 meters clearance under the bridge and the center of the curve was observed. Determine the horizontal length of curve in meters.

A-3.3% grade meets a +6.6% grade at a vertex (El, 144.37m) directly under an overpass bridge having underside elevation of 156.07 m. A 6.7 meters clearance under the bridge and the center of the curve was observed. Determine the horizontal length of curve in meters.

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

Q3:- A parabolic vertical curve joins a grade of -3% to a grade of +5.5 %. The PVI is at station 3+51 and its elevation is 34.11m. The curve passes under a bridge at station 3+76. The elevation of the bottom of the bridge is 41.0 m; determine the required length of the curve if the minimum vertical clearance under the bridge is 4.8m?
2. A horizontal curve with spiral is designed for a two-lane road in mountainous terrain. The following data are known: Design speed = 100 km/h Deflection angle = 32 degrees Station of PI: 16+192.50 Superelevation rate, e = 0.06 Lane width = 3.65 m Normal cross slope, q = 0.02 Slope of the O.E. @ tangent runout = 1:400 Required: Determine the length of spiral curve and stations of TS, SC, CS, and ST. Draw a neat sketch for the development of superelevation if the cross-section is rotated about the centreline. Draw neat sketches for the highway's cross-section at stations: (15+900), (16+017), (16+080), and (16+115)
Q- A vertical summit curve is formed at the intersection of two gradients. +5% and −5%. The length of summit curve needed to provide a stopping sight distance of 100 m will be
An engineer has been decided to connect a tunnel with floor elevation (100.00m) and station (0.00) with bridge elevation (112.50 m) and station (0+450). He suggested vertical curves with equal tangents. Sketch the Figure. Is the crest vertical curve safe to provide sight distance for design speed (70 km/hr.)? Use t=2.5 sec.
A 800ft vertical curve has its PVI at elevation 232.25ft. The initial and final grades are 3.7% and -5% respectively. Determine the elevation of a point 349ft from PVC.
A vertical curve parabolic curve connects a 5% and -7% grade. The point of intersections is located at station 2+100 and the elevation is 35 m. The length of the curve at the left side of the vertex is 60 m and 80 m on the other side. Determine the location of the summit.
A vertical summit symmetrical parabolic curve has a length of 141m with tangent grades of -1.5% and 2.5% intersecting at station 12+640.22 at elevation of 240m above mean sea level. Determine the location and station of the highest point of the curve.
A 200-m symmetrical parabolic curve is to be placed between grades of g1=1.25% and g2=-2.75% intersecting at station 18+000, which has an elevation of 270.190m above mean sea level. a)Calculate elevations for every 20-m station on the vertical curve b)Determine the station and elevation of the highest point on the curve. c)Determine the rate of change of the vertical curve.
A symmetrical parabolic summit curve connects two grades of +6% and -4%. It is to pass through a point, p, the stationing of which is 35 + 280 and the elevation is 198.13 m. If the elevation of the grade intersection is 200 m. with stationing 35 + 300, 1. Determine the length of the curve. a. 120 m b. 167 m c. 234 m d. 436 m 2. Determine stationing of P.C. a. 35 + 260 b. 35 + 240 c. 35 + 160 d. 35 + 120 3. Determine elevation of P.C. a. 324.30 m b. 167.40 m c. 523.40 m d. 196.40 m 4. determine the location of the highest point on the curve from P.C. a. 84 m b. 57 m c. 72 m d. 66 m 5. determine elevation of station 35 + 260 on the curve.. a. 132.43 m b. 157.85 m c. 197.43 m d. 162.46 m
An ascending grade of 3.7% intersects another grade at STA 12+598 whose elevation is 597m. The change in grade is -0.15% per 20m station. The two grades are to be connected by a parabolic curve 800m long. Determine the elevation (m) of the midpoint on the curve.
An ascending grade of 4.9% intersects another grade at STA 12+598 whose elevation is 500m. The change in grade is -0.15% per 20m station. The two grades are to be connected by a parabolic curve 800m long. Determine the elevation (m) of the midpoint on the curve.
An equal tangent sag curve is designed with a PVC at station 3+320 and elevation 290m, the PVI at station 3+375 and elevation 288.74m, and the low point is at station 3+365.determine the design speed of the curve.