Q4: A road is to be redesigned using a parabolic vertical curve to provide clearance beneath a bridge (see Figure below). The (PC OR PVC) has chainage 1140.00m, with an RL of 125.536m. A bridge at chainage 1300.00 has an RL = 128.5m at its lowest point. You must provide 4.5m clearance from the underside of the bridge, and the parabola will finish with a succeeding gradient, G 2 = +3.6%. G1= ? 1. What is the length of the curve? 2. What is the initial gradient G1?: PC Ch 1140 RL 125.536 G1 = ? L=? Point PVC PVT Easting (m) 122.8 326.1 Here be bridge Ah = 4.5 Northing (m) Ch 1300 RL 128.5 40.2 76.3 G2 = +3.6% RL = 124.00 PT Elevation 125.536 ?

Q4: A road is to be redesigned using a parabolic vertical curve to provide clearance beneath a bridge (see Figure below). The (PC OR PVC) has chainage 1140.00m, with an RL of 125.536m. A bridge at chainage 1300.00 has an RL = 128.5m at its lowest point. You must provide 4.5m clearance from the underside of the bridge, and the parabola will finish with a succeeding gradient, G 2 = +3.6%. G1= ? 1. What is the length of the curve? 2. What is the initial gradient G1?: PC Ch 1140 RL 125.536 G1 = ? L=? Point PVC PVT Easting (m) 122.8 326.1 Here be bridge Ah = 4.5 Northing (m) Ch 1300 RL 128.5 40.2 76.3 G2 = +3.6% RL = 124.00 PT Elevation 125.536 ?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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