Answered: 3. The back and forward tangent’s grade…

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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Use four (4) decimal places in solving. 3. The back and forward tangent’s grade are -3.4% and +4.1%, respectively. It is to be connected with an unsymmetrical parabolic curve whose length to the left from vertex is 95 + 382 m and to towards the right is 125 + 382 m. If the station of PI is 3+ (560+ 382) and having an elevation of 200 + 382. Determine the following a. Station of the summit b. Distance of the summit from PT c. Station of PC d. Elevation of PC e. Station of PT f. Elevation of PT 4. An 8% ascending grade at PC intersects the 5% grade at PT. It is desired to construct an unsymmetrical curve, such that the length at the side of back tangent is (50+ 82) and the length at the side of forward tangent is 70 + 82 the stationing and elevation of the intersection of grades at PC and PT are 12 + 100+ 382and 30 + 82 m respectively. Determine the following a. Station of Highest point b. Elevation of Highest point c. Station of PC d. Elevation of PC e. Station of PT f. Elevation of PT g. Value of common grade

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