3. A and B are two points located on each bank of a river and near the abutments of a proposed bridge. To determine its distance, a baseline CD 180 m long was established on one bank of the river and the transit was set up at stations C and D and the azimuth were taken as follows: Azimuth LINE (degrees) 210°00' С - D C - A 260°00' 290°00' С -В D - A D - B 301°00' 315°00' 3. Find the distance AB.

3. A and B are two points located on each bank of a river and near the abutments of a proposed bridge. To determine its distance, a baseline CD 180 m long was established on one bank of the river and the transit was set up at stations C and D and the azimuth were taken as follows: Azimuth LINE (degrees) 210°00' С - D C - A 260°00' 290°00' С -В D - A D - B 301°00' 315°00' 3. Find the distance AB.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

34 Assignment In order to carry out tacheometric surveying, following observations wer taken through a tacheometer set up at station P at a height 1.235m. Compute the horizontal distance of S from P and reduced level of statio at S if R.L. of station P is 262.575m Staff held Vertical at Dr Q R S Horizontal distance from P (m) 100 200 ? 20. K ENGIN Staff Reading (m) 1.01 2.03 3.465, 2.27, 1.280 2.03m 1.01m 100m 200m Angle of Elevation 0° 0° 5° 24' 40"
H.W/ the following details refer to reciprocal levels taken with a level. Instrument at station staff reading on remarks A Distance between A 1.505 2.875 A and B = 1150 m 0.750 1.895 R.L of B = 100 m Find: - 1- The true R.L of station A 2- The combined error curvature and refraction
Q.3 A level circuit is shown in figure. The survey, needed for local engineering project, commenced at BM 35, the elevation of new benchmarks 36, 37, 38 and 39 were determined, and then the level survey was looped back to BM 35, the point of commencement. Fined the adjusted new BMs. ВМ 35 35 36 37 38 39 35 Elevation(m) | 185.000(fixed) 184.242 187.299 186.251 188.397 184.933 Вм 36 0.9 km. вм 35 0.8 km Фвм 37 0.8 km 0,6 km BM 39 BM 38 0,7 km
To get the topography of a given area, a transit was set up at point A and sighted points B and C. The distance of points B and C from A are 200 m and 60 m, respectively. The stadia intervals were determined to be the ff: Stadia Interval Rod at B 2.001 m Rod at C 0.600 m 1. Compute the stadia interval factor. a. 99.93 b. 89.23 c. 94.12 d. 100.01 2. An additional point D was sighted with a stadia interval of 2.12 m. The vertical angle observed is 422'. If the elevation of the point where the instrument was set up is 100 m. compute the elevation of point D if the stadia constant is 0.30 m. a. 176.22 m b. 125.23 m c. 151.23 m d. 116.11 m 3. Compute the horizontal distance from the point where the instrument was set up to point D. a. 284.11 m b. 119.73 m c. 182.33 m d. 210.92 m
A level line from P to Q is carried out to and fro direct leveling, and the height difference of the forward measurement is 12.380 meters, and the height difference of the back measurement is 12.411 meters. It is also known that the closed difference limit value of the previous test and the back test K is 20 mm (K is the number of kilometers), the forward measuring level is 4.2 kilometers long, and the back measuring level is 3.5 kilometers long. Try to find the average elevation difference from P to Q, and whether the round-trip test results meet the regulations, and please explain your answer.
Q.3 A level circuit is shown in figure. The survey, needed for local engineering project, commenced at BM 35, the elevation of new benchmarks 36, 37, 38 and 39 were determined, and then the level survey was looped back to BM 35, the point of commencement. Fined the adjusted new BMs. ВМ 35 35 36 37 38 39 35 Elevation(m) | 185.000(fixed) 184.242 187.299 186.251 188.397 184.933 BM 36 0.9 km вм 35 0.8 km Фвм 37 0.8 km 0.6 km BM 39 вм 38 0.7 km
Problem 3 X is a point having an elevation of 756.32 m above the datum. Point Y and Z are of unknown elevation, where at point Y an instrument is set up. Point Y is in between points X and Z. the vertical angle observed towards X is to be 25°26' and that of Z is -16°17'. The horizontal distance between X and Z is 2056.48 m and that of Y and Z is 1209.87 m. The height of instrument is 1.5 m above Y. Considering the effect of curvature and refraction, determine the following: a. Difference in elevation between X and Y in m. b. Difference in elevation between X and Z in m. c. Elevation of Y in m. d. Elevation of Z in m.
Question 11 The sum of positive departures exceeds that of the negative departures by 0.31 meter. The sum of the negative latitude exceeds that of the positive by 0.67 meter. Linear error of closure is: O 0.62 m 0.47 m O 0.74 m ver 0.94 m
Show complete solution.
A transit with a stadia interval factor of 100.12 was set at C on the line between points A and B, the following stadia readings were observed. (draw the Instrument set up) Stadia Hair Readings (m) Rod Position Vertical Angle Upper (a) Middle (c) Lower (b) Rod Held at A - 50 17' 1.318 1.148 0.978 Rod Held at B + 2° 21' 2.048 1.882 1.355 If the stadia constant is 0.29 m determine the following: A. Length of line AB (horizontal). ANSWER: B. If the elevation at B is 76.751m what is the elevation at A. ANSWER:
Line levels between BM1 and BM2 are run over four different routes. The elevation of BM1 is 640.00 m. The lengths of line and observed differences in elevations are shown in the tables. Determine the least square estimate of elevation of BM2. BM2 is higher than BM1. a. 640.69 b. 641.28 c. 640.39 d. 641.21
Problem: Trigonometric leveling (base of object is accessible) In order to determine the quantity of filling materials for embankment in a construction site, it is required to determine the difference in elevation (DE) between A and B. The instrument was set up at point A and took a rod reading at point B. Stadia rod A 55.56m B Horizontal distance AB =55.56m Height of set up @point A= 1.20m Rod reading = 1.80m @ point B Zenith angle to point B = 75°10' DE VD 1. Determine the difference in elevation between A and B. a) 13.19m b) 14.11m c) 13.59 d) 12.88m 2. If the finished grade of embankment is sloping from A to B, determine its slope. a) 24.56% b)25.40% c) 19.88% d) 15.56%