A 3% grade at Sta. 10+100 is to be connected to a -2% grade at Sta. 10+420 using symmetrical parabolic curve. If the tangent grades intersect at elevation 152m, Evaluate the following. a. The location and elevation of the zenith b. The elevation and grade of the curve at Sta. 10+200 c. The elevation of end of vertical curve (PT)

A 3% grade at Sta. 10+100 is to be connected to a -2% grade at Sta. 10+420 using symmetrical parabolic curve. If the tangent grades intersect at elevation 152m, Evaluate the following. a. The location and elevation of the zenith b. The elevation and grade of the curve at Sta. 10+200 c. The elevation of end of vertical curve (PT)

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

Design the curve, of An equal tangent vertical curve is to be constructed between grades of -2.0% (initial) and 1.0% (final). The PVI is at station 11 + 000.000 and at elevation 420 m. Due to a street crossing the roadway, the elevation of the roadway at station 11 + 071.000 must be at 421.5 m. GIVEN DIMENSIONS ON THE ATTACHED PICTURE
Q3/ A vertical curve below has a lower point (A) which exists at station (55+50) with elevation (1291.2 m). the back grade of (-8%) meet the forward grade of (+7.8%) at (PVI) station (54+00) with elevation (1281.5 m). determine the length of the curve with the stations of (PVC) and (PVT)? PVT PVC g₁=(-6%) PVI g₂=(+5.8%)
A -3% grade intersects a +2% grade at STA 4+350 meter at an elevation of 200.00 meter. Given that a 250 meter symmetrical parabolic curve is used, find, draw and plot the elevation of the curve at every 20 meter interval starting at STA 4+240 meter including its critical point
Two tangents intersect at V with back tangent having a grade of -4.5% and forward tangent of 5.5%. A 200 m curve lies on the side of PC and 102.5 on the other side. Stationing ofV is at 10+538 having an elevation of 104 m. If a bridge is located above the curve, with its centerline having an elevation of 118.5 m and stationing of 10+555, with underside of the bridge located 55 cm below the given elevation, determine the height of highest vehicle it can accommodate if the bridge has a width of 12 m.
3.9 An equal-tangent crest curve connects a +2% initial grade with a -1% final grade, and is designed for 55 mi/h. The station of the PVI is 233 + 40 with elevation 1203 ft. What is the elevation of the curve at station 234 +00?
6. A 5.1% grade intersects a -1% grade at STA 5+180 at an elevation of 175m. A vertical curve of length 120m is to be run forward from the point of intersection, and a curve of length 80m is to be extended back forming an unsymmetrical curve. Determine the elevation (m) of the curve below PVI. *
2. A symmetrical sag curve has a descending grade of -4.2% and an ascending grade of +2.5% intersecting at Station 10+120, whose elevation is 382.3÷4 m. The rate of change of grade is restricted to 0.60%. a. What is the vertical offset of the parabolic curve to the point of intersection of the tangent grades? b. At what distance from PC is the lowest point of the curve located?
A 627m equal tangent crest vertical curve has PVC at Sta 17+579 and at elevation 155m. The initial grade is 4.49% and the final grade is -6.82%. Determine the station of PVI.
A 5.3% grade intersects a -1.9% grade at STA 5+180 at an elevation of 186m. A vertical curve of length 120m is to be run forward from the point of intersection, and a curve of length 80m is to be extended back forming an unsymmetrical curve. Determine the elevation (m) of the curve below PVI.
A-6.5% grade is followed by a 1.75% grade intersecting at Sta. 15+750, with an elevation of 385.5 m. The change of grade is restricted to 0.5% per 20 m station. Compute the elevation of Sta. 15+710
A vertical parabolic curve has its PVI at station 18 + 50 and elevation 97.52. The grade of the back tangent is 2.5 percent, and the grade of the forward tangent is – 4.5 percent, and the curve length is 400 ft. Sta V = 29 + 00 Using the CHORD GRADIENTS, what is the elevation at 28 +50?
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.