traverse are as follows: AB= 202.74, BC=285.87, CD=499.37, DE=321.33, and EA = 382.78. (Note: Assume units of feet for all distances.) The preliminary azimuths obtained after balancing the angles are as follows: AB= 138° 16'27", BC = 67°02′46", CD= 354°22'24", DE = 256° 13'01", EA = 185°29′20" ▾ Compute the departures of the sides. Express your answers in feet to five significant figures and separated by commas. AB, BC, CD, DE, EA = Part B 195| ΑΣΦ. 41 Ivec 3 Compute the latitudes of the sides. Express your answers in feet to five significant figures and separated by commas. AB, BC, CD, DE, EA = 195] ΑΣΦ | 11 | vec 4 ? ? ft, ft, ft, ft, ft ft, ft, ft, ft, ft

traverse are as follows: AB= 202.74, BC=285.87, CD=499.37, DE=321.33, and EA = 382.78. (Note: Assume units of feet for all distances.) The preliminary azimuths obtained after balancing the angles are as follows: AB= 138° 16'27", BC = 67°02′46", CD= 354°22'24", DE = 256° 13'01", EA = 185°29′20" ▾ Compute the departures of the sides. Express your answers in feet to five significant figures and separated by commas. AB, BC, CD, DE, EA = Part B 195| ΑΣΦ. 41 Ivec 3 Compute the latitudes of the sides. Express your answers in feet to five significant figures and separated by commas. AB, BC, CD, DE, EA = 195] ΑΣΦ | 11 | vec 4 ? ? ft, ft, ft, ft, ft ft, ft, ft, ft, ft

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

The observed lengths of the sides (in feet) of a five-sided closed polygon
traverse are as follows:
AB= 202.74, BC = 285.87, CD= 499.37, DE = 321.33, and EA = 382.78.
(Note: Assume units of feet for all distances.)
The preliminary azimuths obtained after balancing the angles are as follows:
AB= 138° 16'27", BC = 67°02′46", CD= 354°22'24",
DE = 256° 13'01", EA = 185°29/20".
Compute the departures of the sides.
Express your answers in feet to five significant figures and separated by commas.
AB, BC, CD, DE, EA =
Part B
||| ΑΣΦ
ΑΣΦ
AB, BC, CD, DE, EA =
vec
Compute the latitudes of the sides.
Express your answers in feet to five significant figures and separated by commas.
[ΠΙ
—| ΑΣΦ |
w
vec
?
?
ft, ft, ft, ft, ft
ft, ft, ft, ft, ft

Compute the linear misclosure.
Express your answer in feet to three significant figures.
197| ΑΣΦ. 11
1:
vec
Compute the relative precision.
Express your answer to three significant figures.
ΨΕΙ ΑΣΦΑ
vec
www ?
?
ft

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Q2. Adjust the lengths and azimuths of the traverse using the Bowditch method, given the information below. AB=383.808m, az=35°09′32"; BC=360.209m, az=303°34'14"; CD=342.204m, DE=336.210m, az=116°15'24"; and EA=267.527m, az=158°08′56". az 250°11'36";
Q2. Compute and tabulate for the following closed-polygon traverse: (a) preliminary bearings (b) unadjusted departures and latitudes (c) linear misclosure and (d) relative precision. Course Azimuth AB 75°14'47" BC CD DE EA Length (m) 409.838 360.225 342.213 337.191 85.125 Interior Angles A = 12°25'31" B = 48°19'25" C = 126°37'24" D = 46°03'36" E = 306°34'19"
Q1/ The data given in Table below were obtained for an anti-clockwise closed-loop traverse. The azimuth of AF 136° 25' 12'. Determine the adjusted traverse by Bowditch's method Length Internal Correction Corrected angle Station (m) Int. angle 17.098 130 1845"| <-2" 130°18'43" 102.925 110°18°23" 110°18 21" - 2" - 2" - 2" 99 32'35" 33.866 116 18°02" C 92.782 9932'33" 116 18'00" 63.719 119 46'07" <-2" 119°46°05" F 79.097 143°46°20"| - 2" 143 46'18" Σ 389.487 720°0012"| - 12" 720 00'00"
Given the following tabulated data for a closed traverse, determine the bearings of CD and EA. COURSE AB BC CD DE EA LENGTH (m) 668.15 670.32 610.68 515.26 448.50 BEARING N58°32'W 348.78 S35°10'W Unknown N13°30'E +N Unknown -S 501.02 547.97 (Unknown) (Unknown) +E -W 120.29 569.89 386.08 (Unknown) (Unknown)
5) [Book problem 7.17] Course AB of a five-sided traverse runs due north. From the given balanced interior angles to the right (A - E as shown below), compute and tabulate the bearings and azimuths from north for each side of the traverse. A = 156°23'53", B = 53°36'08", C = 83°15'58", D = 153°52'00", and E = 92°52'01" (Hints: you are asked to compute the azimuths and bearings of a 5-sided polygon traverse, whose first course, AB, runs due north, and whose balanced interior angles to the right are given. Use the tabular method demonstrated in class.)
Azimuth Traverse Given the tabulated measurement of the closed traverse as shown. Determine the area of the traverse using DMD Method. Line Length Azimuth from South AB 867.460 m 284°12’ BC 1272.410 m 15°18’ CD Unknown 68°06’ DE Unknown 151°21’ EA 1391.17 m 264°51’ Note: EXPRESS YOUR ANSWER UPTO 3 DECIMAL PLACES.
5. Four interior angles of a five-sided polygon traverse were observed as A = 100°32'46", B = 112°36'48", and C = 108°13'08", and D = 115°42'58". The angle E was not observed. If all the observations are assumed to be correct, what is the value of the angle E? Worlk
Compute the azimuths in the traverse (as shown in the figure), given that azimuth AB equals 126°55’17”, and that the angles within the traverse are the following: Angle A = 100˚45’35” Angle B = 231˚23’41” Angle C = 17˚12’56” Angle D = 89˚03’26” Angle E = 101˚34’22” Convert the given azimuths computed into bearings.