Principles Of Geotechnical Engineering, Si Edition
Principles Of Geotechnical Engineering, Si Edition
9th Edition
ISBN: 9781305970953
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Chapter 2, Problem 2.5P

Repeat Problem 2.4 with the following data.

Chapter 2, Problem 2.5P, Repeat Problem 2.4 with the following data. 2.4 The following are the results of a sieve analysis. , example  1

2.4 The following are the results of a sieve analysis.

Chapter 2, Problem 2.5P, Repeat Problem 2.4 with the following data. 2.4 The following are the results of a sieve analysis. , example  2

a. Determine the percent finer than each sieve and plot a grain-size distribution curve.

b. Determine D10, D30, and D60 for each soil.

c. Calculate the uniformity coefficient Cu.

d. Calculate the coefficient of gradation Cc.

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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.
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…
Problem 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 B
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