Problem 1. To determine the distance between two points A and B, a tacheometer was set up at P and the following observations were recorded. (a) Rod at A (b) Rod at B Rod readings = 2.225, 2.605, 2.985 Vertical Angle = + 7°54' Rod readings = 1.640, 1.920, 2.200 Vertical Angle = - 1°46′ (c) Horizontal Angle APB = +68°32'30" Elevation of A = 315.600m k = 100m c = 0.00m Determine the distance AB and the elevation of B.

Problem 1. To determine the distance between two points A and B, a tacheometer was set up at P and the following observations were recorded. (a) Rod at A (b) Rod at B Rod readings = 2.225, 2.605, 2.985 Vertical Angle = + 7°54' Rod readings = 1.640, 1.920, 2.200 Vertical Angle = - 1°46′ (c) Horizontal Angle APB = +68°32'30" Elevation of A = 315.600m k = 100m c = 0.00m Determine the distance AB and the elevation of B.

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

Methods of Surveying

Surveying is the practice to determine the relative three-dimensional positions of various points on the earth’s surface. This is done by computing the vertical and horizontal distances, angles between the points, collecting the observations, and plotting them on a map of any appropriate scale. Accuracy can be achieved by using the latest instruments like a theodolite, tachometer, etc. Leveling is a subdivision of surveying where the objective is to locate the elevation of objects considering a datum level.

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Problem 1.
To determine the distance between two points A and B, a tacheometer was set up
at P and the following observations were recorded.
(a) Rod at A
(b) Rod at B
Rod readings = 2.225, 2.605, 2.985
Vertical Angle = + 7°54'
Rod readings = 1.640, 1.920, 2.200
Vertical Angle = -1°46'
(c) Horizontal Angle APB = +68°32'30"
Elevation of A = 315.600m
k = 100m
c = 0.00m
Determine the distance AB and the elevation of B.

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