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1. Compute Heights of Instrument and Elevations.  2. Check the accuracy of the arithmetical computations, add all backsights as well as all the foresights. The difference between these two sums must be equal to the difference in elevation between BM1 and BM2. Please refer to image and data provided.

1. Compute Heights of Instrument and Elevations.  2. Check the accuracy of the arithmetical computations, add all backsights as well as all the foresights. The difference between these two sums must be equal to the difference in elevation between BM1 and BM2. Please refer to image and data provided.

Structural Analysis
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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1. Compute Heights of Instrument and Elevations. 
2. Check the accuracy of the arithmetical computations, add all backsights as well as all the foresights. The difference between these two sums must be equal to the difference in elevation between BM1 and BM2.

Please refer to image and data provided. 

1.) Backsights: • BMa = 1.81 m • TP1 = 1.98 m • TP2 = 2.06 m • TP3 = 1.77 m • TP4 = 1.89 m • TP5 = 1.56 m • TP6 = 1.48 m • TP7 = 1.13 m • TP8 = 1.63 m • TP9 = 1.95 m • TP10 = 2.00 m 2.) Foresights: • TP1 = 1.51 m • TP2 = 1.16 m • TP3 = 1.58 m • TP4 = 1.42 m • TP5 = 1.54 m • TP6 = 1.51 m TP7 = 1.71 m • TP8 = 1.32 m • TP9 = 1.40 m • TP10 = 1.23 m • BMb = 1.18 m
Transcribed Image Text:1.) Backsights: • BMa = 1.81 m • TP1 = 1.98 m • TP2 = 2.06 m • TP3 = 1.77 m • TP4 = 1.89 m • TP5 = 1.56 m • TP6 = 1.48 m • TP7 = 1.13 m • TP8 = 1.63 m • TP9 = 1.95 m • TP10 = 2.00 m 2.) Foresights: • TP1 = 1.51 m • TP2 = 1.16 m • TP3 = 1.58 m • TP4 = 1.42 m • TP5 = 1.54 m • TP6 = 1.51 m TP7 = 1.71 m • TP8 = 1.32 m • TP9 = 1.40 m • TP10 = 1.23 m • BMb = 1.18 m
Leveling Rod BS Horizontal Line of Sight FS TP, FS BM, HI, HI BM, Elev. of BM, Elev. of TP, ETev. of BM2 Differencein Elev. between BM, and BM, ref. datum BS c. TA AND RESULTS STATION BS HI FS ELEVATION REMARKS
Transcribed Image Text:Leveling Rod BS Horizontal Line of Sight FS TP, FS BM, HI, HI BM, Elev. of BM, Elev. of TP, ETev. of BM2 Differencein Elev. between BM, and BM, ref. datum BS c. TA AND RESULTS STATION BS HI FS ELEVATION REMARKS
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