1. A circular curve of radius 500 metres is to be constructed between two straights of a proposed highway. The deflection angle between the straight is 22° 30' 00" and the curve is to be set out by the tangential angles method using a theodolite and a tape. The through chainage of the intersection point is 3345.00. Calculate the tangent lengths Calculate the length of the circular curve Calculate the through chainages of the two tangent points i)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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1. A circular curve of radius 500 metres is to be constructed between two straights of a
proposed highway. The deflection angle between the straight is 22° 30' 00" and the
curve is to be set out by the tangential angles method using a theodolite and a tape.
The through chainage of the intersection point is 3345.00.
i)
ii)
ii)
iv)
v)
vi)
vii)
Calculate the tangent lengths
Calculate the length of the circular curve
Calculate the through chainages of the two tangent points
Calculate the long chord
Calculate the mid-ordinate (PS) of the circular curve
Calculate the external distance (PI)
The pegs are required on the centre line at exact 20 metre multiples of through
chainage. Tabulate the data required to set out the curve from entry tangent point
(T).
Transcribed Image Text:1. A circular curve of radius 500 metres is to be constructed between two straights of a proposed highway. The deflection angle between the straight is 22° 30' 00" and the curve is to be set out by the tangential angles method using a theodolite and a tape. The through chainage of the intersection point is 3345.00. i) ii) ii) iv) v) vi) vii) Calculate the tangent lengths Calculate the length of the circular curve Calculate the through chainages of the two tangent points Calculate the long chord Calculate the mid-ordinate (PS) of the circular curve Calculate the external distance (PI) The pegs are required on the centre line at exact 20 metre multiples of through chainage. Tabulate the data required to set out the curve from entry tangent point (T).
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