Elementary Surveying (14th Edition)
14th Edition
ISBN: 9780133758887
Author: Charles D. Ghilani, Paul R. Wolf
Publisher: PEARSON
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Chapter 20, Problem 20.42P
To determine
Obtuse grid angle between two azimuths.
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Example 3 Design a rectangular reinforced concrete beam having a 6 m simple span. A service dead load of 25 kN/m (not including the beam weight) and a service live load 10kn/m are to be supported. use f'c = 25 MPa and fy = 420MPa
3. Find the reinforcements for the mid span and supports for an interior 8 in. thick slab (S-2) in the floor from Problem 1. Ignore the beams and assume that the slab is supported by columns only. Sketch the slab and show the reinforcements including the shrinkage and temperature reinforcement steel. Use fc’ = 4,000 psi and fy = 60,000 psi.
Problem 4 (Apx Method)
Determine (approximately) the force in each member of the truss. Assume the diagonals can support
both tensile and compressive forces.
3 m
50 kN
F
000
40 kN
000
000
000
000
000
000
E
000
000
000
000
000
B
3 m
20 kN
D
000
000
000
000
C
3 m
Problem 5 (Apx Method)
Determine (approximately) the force in each member of the truss in problem 4. Assume the diagonals
cannot support compressive forces.
Chapter 20 Solutions
Elementary Surveying (14th Edition)
Ch. 20 - Prob. 20.1PCh. 20 - Prob. 20.2PCh. 20 - Prob. 20.3PCh. 20 - Prob. 20.4PCh. 20 - Prob. 20.5PCh. 20 - Prob. 20.6PCh. 20 - Prob. 20.7PCh. 20 - Prob. 20.8PCh. 20 - Prob. 20.9PCh. 20 - Prob. 20.10P
Ch. 20 - Prob. 20.11PCh. 20 - Prob. 20.12PCh. 20 - Prob. 20.13PCh. 20 - Prob. 20.14PCh. 20 - Prob. 20.15PCh. 20 - Prob. 20.16PCh. 20 - Prob. 20.17PCh. 20 - Prob. 20.18PCh. 20 - Prob. 20.19PCh. 20 - Prob. 20.20PCh. 20 - Prob. 20.23PCh. 20 - Prob. 20.24PCh. 20 - Prob. 20.25PCh. 20 - Prob. 20.26PCh. 20 - Prob. 20.27PCh. 20 - Prob. 20.28PCh. 20 - Prob. 20.29PCh. 20 - Prob. 20.30PCh. 20 - Prob. 20.31PCh. 20 - Prob. 20.32PCh. 20 - Prob. 20.33PCh. 20 - Prob. 20.34PCh. 20 - Prob. 20.35PCh. 20 - Prob. 20.36PCh. 20 - Prob. 20.37PCh. 20 - Prob. 20.38PCh. 20 - Prob. 20.39PCh. 20 - Prob. 20.40PCh. 20 - Prob. 20.41PCh. 20 - Prob. 20.42PCh. 20 - Prob. 20.43PCh. 20 - Prob. 20.44PCh. 20 - Prob. 20.45PCh. 20 - Prob. 20.46PCh. 20 - Prob. 20.47P
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- The single degree of freedom (SDOF) system the acceleration at the base (excitation) and the acceleration at the roof (response) of the SDOF system was recorded with sampling rate 50 Hz (50 samples per second, or dt= 0.02 seconds). The file ElCentro.txt includes the two columns of acceleration data. The first column lists the acceleration at the base of the SDOF system. The second column lists the acceleration at the roof of the SDOF system. (a) Plot the time histories of the recorded accelerations at the base and at the roof of the SDOF system. (b) Compute the acceleration, velocity and displacement time histories of the roof of the SDOF system subjected to the recorded base acceleration using the Central Difference method. Plot the accel- eration, velocity and displacement time histories. Plot the restoring force, the damping force, and the inertia force time histories. Compare the recorded acceleration time history at the roof of the SDOF with the acceleration that you computed…arrow_forwardProblem 2 (Using force method) Determine the force in each member of the truss. E = 29000 ksi 3 k 1.5 in² 4 ft 1.5 in² 1.5 in² 2 in² 6 k D 1.5 in² 3 ft 2 in² Barrow_forwardThe single degree of freedom (SDOF) system that you studied under free vibration in Assignment #3 - Laboratory Component has been subjected to a strong ground motion. The acceleration at the base (excitation) and the acceleration at the roof (response) of the SDOF system was recorded with sampling rate 50 Hz (50 samples per second, or dt= 0.02 seconds). The file ElCentro.txt includes the two columns of acceleration data. The first column lists the acceleration at the base of the SDOF system. The second column lists the acceleration at the roof of the SDOF system. (a) Plot the time histories of the recorded accelerations at the base and at the roof of the SDOF system. (b) Compute the acceleration, velocity and displacement time histories of the roof of the SDOF system subjected to the recorded base acceleration using the Central Difference method. Plot the accel- eration, velocity and displacement time histories. Plot the restoring force, the damping force, and the inertia force time…arrow_forward
- Please explain step by step and show formulaarrow_forwardPlease explain step by step and show formulaarrow_forwardFor an reinforced concrete two-way slab shown in figure under the load (P). (the slab continuous over all edges - all sides are fixed), Determine (By using yield line theory): A- Draw the Yield line Pattern B- Determine the moment m 3BAT C- Find The required flexural steel to resist the loads causing the slab to collapse if P = 200 KN, fc = 28 MPa, fy = 420 MPa d = 120 mm. Use 10 mm bars. (Pmin = 0.002) 6m 8m >2m->) 3marrow_forward
- 3BAT For an reinforced concrete two-way slab shown in figure under the load (P). (the slab continuous over all edges - all sides are fixed), Determine (By using yield line theory): A- Draw the Yield line Pattern B- Determine the moment m KN, fc Please don't solve in Al anco if P = 200 6m 8m 2m-)) 3marrow_forwardPlease explain step by step and show formulaarrow_forwardPlease explain step by step and show formulaarrow_forward
- 4-You are making a bookshelf (shown below) to carry books that range from 8½" to 11" in height and would take up 29" of space along the length. The material is wood having a Young's Modulus of 3.66 ksi, thickness of 3/8", and width of 12". You want to find the maximum vertical deflection of the bookshelf. The vertical deflection of the shelf is given by: -0.67665 x10 8x4 -0.26689x105 x3 +0.12748x10³ x² -0.018057=0 x Bookshelf Booksarrow_forwardThe difference in water surface levels in two tanks, which are connected by three pipes in series of lengths 300 m, 170 m, and 210 m, having diameters 300 mm, 200 mm, and 400 mm, respectively, is 12 m. Determine the rate of flow of water if coefficients of friction are 0.005, 0.0052, and 0.0048, respectively. Determine the discharge and velocity in each pipe, considering the minor losses and neglecting minor losses.arrow_forward3 BAT For an reinforced concrete two-way slab shown in figure under the load (P). (the slab continuous over all edges - all sides are fixed), Determine (By using yield line theory): A- Draw the Yield line Pattern B- Determine the moment m C- Find The required flexural steel to resist the loads causing the slab to collapse if P = 200 KN, f=28 MPa, fy = 420 MPa d = 120 mm. Use 10 mm bars. (Pmin = 0.002) 6m 8m >2m-)) 3marrow_forward
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