3. A traverse line is being measured by theodolite and subtense bar. At the theodolite's horizontal axis is 1.54 m above the ground mark and the angle subtended by a 2-meter subtense bar places at the next station is 40'25". The subtense bar is 1.25 m above the ground mark, the vertical angle measured by the theodolite is +13deg 28 min. Find: a) The horizontal distance from the theodolite at A to the subtense bar at B. b) The vertical distance from the horizontal axis of the theodolite to the center of one station, the bar c) The difference in elevation between the ground stations

3. A traverse line is being measured by theodolite and subtense bar. At the theodolite's horizontal axis is 1.54 m above the ground mark and the angle subtended by a 2-meter subtense bar places at the next station is 40'25". The subtense bar is 1.25 m above the ground mark, the vertical angle measured by the theodolite is +13deg 28 min. Find: a) The horizontal distance from the theodolite at A to the subtense bar at B. b) The vertical distance from the horizontal axis of the theodolite to the center of one station, the bar c) The difference in elevation between the ground stations

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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Concept explainers

Traverse Survey

Traverse surveying is a popular method of surveying. Traversing is that type of survey where several connected survey lines form a framework and the directions and lengths of the survey lines are measured with the help of a tool to measure angles and tape or chain respectively. Traverse networks involve placing survey stations in a queue or trail and using pre-tested points as a basis for looking at the next point. This type of surveying is different from Tacheometric surveying, where only angles are measured and the process of chaining is reduced.

Question

3. A traverse line is being measured by theodolite and subtense bar. At
the theodolite's horizontal axis is 1.54 m above the ground mark and the angle
subtended by a 2-meter subtense bar places at the next station is 40ʻ25". The subtense
bar is 1.25 m above the ground mark, the vertical angle measured by the theodolite is
one station,
+13deg 28 min.
a) The horizontal distance from the theodolite at A to the subtense bar at B.
b) The vertical distance from the horizontal axis of the theodolite to the center of
Find:
the bar
c) The difference in elevation between the ground stations

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