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1. The following are the bearings taken on a closed compass traverse. Assuming that the observed bearing of line AB is correct, draw the figure, compute the interior angle and correct them for observational errors, adjust the bearings of the line, and tabulate the results. LINE FORWARD BEARING BACK BEARING S 37° 30' E S 43° 15' W N 73° 00' W N 12° 45' E N 60° 00' E N 37° 30' W N 44° 15' E S 72° 15' E S 13° 15' W S 59° 00' W АВ BC CD DE EA

1. The following are the bearings taken on a closed compass traverse. Assuming that the observed bearing of line AB is correct, draw the figure, compute the interior angle and correct them for observational errors, adjust the bearings of the line, and tabulate the results. LINE FORWARD BEARING BACK BEARING S 37° 30' E S 43° 15' W N 73° 00' W N 12° 45' E N 60° 00' E N 37° 30' W N 44° 15' E S 72° 15' E S 13° 15' W S 59° 00' W АВ BC CD DE EA

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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Solve the interior angles and adjustments just like the solution example given below. (Note: Do not convert it to whole circle bearing)
Sample Problem 5: Adjustment of an Open Compass Traverse LINE LENGTH OBSERVED BEARINGS Solving for the adjusted bearing of lines DE and ED: FORWARD ВАСK 5 25° 40' W N 20° 25' W N 35 30' E AB 400.63 m N 25° 45' E S 20* 30' E S 35 30'W S 75° 30' E BC 450.22 CD 500.89 a'de = N 35°30' E [ Best Line] O, = 69° 00' DE 640.46 N 75° 25' W EF 545.41 N 58* 50' E S 58° 15' W FG 700.05 N 22° 05' E S21° 55' W 0, = ? d'de = 180° - (a'dc + Oa) ďde = 180° - (35°30' + 69° 00') a'de = S 75°30' E [Adjusted bearing of DE] D w 0, = ? Adjustment of line DE: a'ed = N 75°30' w [Adjusted bearing of ED] D Adc = N 35°3O' E ade = S 75°3O' E ade Og = 180° - (adc + Ade) 0g = 180° - (35°30' + 75°30') = 69° 00'
Transcribed Image Text:Sample Problem 5: Adjustment of an Open Compass Traverse LINE LENGTH OBSERVED BEARINGS Solving for the adjusted bearing of lines DE and ED: FORWARD ВАСK 5 25° 40' W N 20° 25' W N 35 30' E AB 400.63 m N 25° 45' E S 20* 30' E S 35 30'W S 75° 30' E BC 450.22 CD 500.89 a'de = N 35°30' E [ Best Line] O, = 69° 00' DE 640.46 N 75° 25' W EF 545.41 N 58* 50' E S 58° 15' W FG 700.05 N 22° 05' E S21° 55' W 0, = ? d'de = 180° - (a'dc + Oa) ďde = 180° - (35°30' + 69° 00') a'de = S 75°30' E [Adjusted bearing of DE] D w 0, = ? Adjustment of line DE: a'ed = N 75°30' w [Adjusted bearing of ED] D Adc = N 35°3O' E ade = S 75°3O' E ade Og = 180° - (adc + Ade) 0g = 180° - (35°30' + 75°30') = 69° 00'
1. The following are the bearings taken on a closed compass traverse. Assuming that the observed bearing of line AB is correct, draw the figure, compute the interior angle and correct them for observational errors, adjust the bearings of the line, and tabulate the results. LINE FORWARD BEARING BACK BEARING S 37° 30' E S 43° 15' W N 73° 00' W N 12° 45' E N 60° 00' E N 37° 30' W N 44° 15' E S 72° 15' E S 13° 15' W S 59° 00' W AB BC CD DE EA
Transcribed Image Text:1. The following are the bearings taken on a closed compass traverse. Assuming that the observed bearing of line AB is correct, draw the figure, compute the interior angle and correct them for observational errors, adjust the bearings of the line, and tabulate the results. LINE FORWARD BEARING BACK BEARING S 37° 30' E S 43° 15' W N 73° 00' W N 12° 45' E N 60° 00' E N 37° 30' W N 44° 15' E S 72° 15' E S 13° 15' W S 59° 00' W AB BC CD DE EA
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