Horizontal stadia sights. An automatic level with an internal focusing telescope was set up somewhere at mid-length of a long-span steel bridge. The rod readings tabulated below were observed on s stadia rod held successively at the vicinity of the concrete abutments in the southern and northern approaches of the bridge. If the stadia interval factor of the instrument is 97.5, determine the length of the bridge HAIR READINGS ROD POSITION Upper Middle Lower At southern approach 2.98 1.68 0.38 At northern approach 3.54 2.02 0.49 Length of the bridge: in meters

Horizontal stadia sights. An automatic level with an internal focusing telescope was set up somewhere at mid-length of a long-span steel bridge. The rod readings tabulated below were observed on s stadia rod held successively at the vicinity of the concrete abutments in the southern and northern approaches of the bridge. If the stadia interval factor of the instrument is 97.5, determine the length of the bridge HAIR READINGS ROD POSITION Upper Middle Lower At southern approach 2.98 1.68 0.38 At northern approach 3.54 2.02 0.49 Length of the bridge: in meters

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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The instrument used was a transit with an internal focusing telescope and a stadia interval factor of 99,Compute: a) DRAW DIAGRAMb) The Elevation at the turning point.c) The elevation at Point B.d) The gradient from A to B if all the stations are in a straight line.
A transit was used to determine the elevations of TP1 and the top of the column along the tunnel. The transit was set up first between BM1 and TP1. The stadia rod was held inverted at BM1 and the rod reading was recorded. The slope distance was measured to be 65.254 from the center of the instrument to the point where the rod reading was taken. TP1 was also sighted with the line of sight in the horizontal position. Rod reading and stadia intercept were recorded to be 1.111 m and 0.672 m respectively. The transit was transferred between TP1 and the column. The following readings were recorded. Refer to the figure below. The rod was held in the normal position at TP1 and was inverted at the column wherein the zero mark was placed at the top of the column. a. Determine the stadia intercept at BM1. b. What is the elevation of TP1 if the HI for the first setup is 1.676 m and the rod reading is 2.158? c. What is the difference in elevation between TP1 and the top of the column? d. What is…
The instrument used was a transit with an internal focusing telescope and a stadia interval factor of 99, compute for the gradient from A to B if all the stations are in a straight line.
Q#2: An open traverse survey using theodolite has been carried out and following deflection angles were observed: Stations Observed Deflection Angles α Designation of Deflection Angle A 280 25’ 00’ (L) B 680 03’ 30’’ (L) C 1200 34’ 00’’ (L) D 580 30’ 00’’ (R) E 1080 13’ 30’’ (L) F 160 50’ 00’’ (R) G 1100 00’ 30’’ (L) Compute error of closure in above deflection angles. Find out the adjusted deflection angles using computed error in part (a).
When performing a leveling process for the longitudinal section of a road, the following readings were recorded: The first reading was taken on the leveling number (B.M1), whose Tevel is (60 meters), while the rest of the points were taken on the section points (00+0. 0+50 + 00+ 1... . (While working, lift the device after the fourth, seventh, and tenth reading. Arrange the readings in a table, then complete the table and verify the correctness of the calculations. Draw the segmént and establish a slope line inclined by 0.4% - and its level at the beginning of the project is 60 meters. Find the burial depth in each station. " Reading sequence 1 2 3 4 5 6 7 8 9 10 11 12 13 Reading the ruler 1.35 1.72 1.98 2.05 2.17 2.76 2.98 0.67 1.78 2.48 |2.88 3.10 3.39|
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A left hand deflection occurs in a roadway with a radius of 50m. A typical centerline arc length is 15m How long is the typical arc at 3m offset right? Select one: а. 53m b. 47m O c. 15m O d. 15.9m e. 14.1m
Please answer this NEATLY, COMPLETELY and EXPLAIN step by step
Determine vertical deflection at point D.
SITUATION 5. In the two peg-test method of a dumpy level the following observation were taken. Instrument set up near A Instrument set up near B 1.505m 0.938m 1.449 Rod reading on A Rod reading on B 2.054m a. What is the difference in elevation between A and B b. If the line of sight is not in adjustment, determine the correct rod reading on A with the instrument still set up at B. C Determine the error in the line of sight. C C.
A transit with a stadia interval factor of 100 was set up at C with elevation of 500m. and the following stadia reading were observed at points A and B: POSITION OF VERTICAL HAIR READINGS AZIMUTH ROD ANGLE UPPER (a) MIDDLE (c) LOWER (b) ROD HELD AT A 25°36' -25°35' 1.43 m 0.175 m 0.920 m ROD HELD AT B 305°40' +18°28' 2.022 1.854 1.686 If the stadia constant is 0.30m. determine the following: a. Elevation at points A and B HI at C is 1.00 m b. The distance of line AB c. Grade from point A to point B
In the two-peg of a dummy level, the following observation are taken. What is the difference in elevation between A and B? Answer: ____________ If the line of sight is not in adjustment, determine the correct rod reading on B with the instrument still set up at A. Answer: ____________