Structural Analysis, SI Edition
6th Edition
ISBN: 9780357030981
Author: Aslam Kassimali
Publisher: Cengage Learning US
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Chapter 7, Problem 4P
To determine
Calculate the horizontal deflection and vertical deflection at joint B.
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Calculate the active earth pressure (exerted by the supported soil mass on the right) against the 10-meter-long, dense and smooth sheet pile wall shown in Figure E2:1. The ground surface is loaded with heavy construction machinery applying a pressure of q = 10.0 kPa. Other data is according to the figure.Assume the sheet pile moves sufficiently to the left to reach active failure conditions behind it, and passive failure conditions develop in the soil mass below the excavation bottom.
Draw diagrams for active and passive earth pressure as well as the resultant earth pressure.
Questions to Answer:
Will the sheet pile wall hold without rain? (Calculate the forces.)
Will the sheet pile wall hold if it rains? (Assume water-filled cracks.)
If the sheet pile does not hold in any of the above cases – how deep would it need to be embedded in order to hold?
Q.2- Design a flexible pavement by AASHTO method and draw typical cross section of the flexible
Pavement for rural highway has following data: -
Elastic modulus of Asphalt is 450000 Ib/in², Mr. of base-31000 psi, Mr. of subbase=13500 psi,
CBR of base-100 CBR of subbase=22 subbase of subgrade =6 water removed with one week
Percentage of time pavement structure is exposed to moisture levels-30% reliability=95%
Standard deviation=0.45 initial serviceability=4.2 terminal serviceability=2.5 and ESAL=2*106
subgrade =1500 CBR
Mr
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Assume that in earthquake-resistant design, the following relations take place: Y=ce, where Y is the
ground motion intensity at the building site, X is the magnitude of an earthquake, and the constant c is
related to the distance between the site and center of the earthquake. Assuming that X is exponentially
distributed, fx (x)=ex with x 20 and >2,
(a) Derive the PDF and CDF of Y, including the bounds, and sketch them.
(b) Determine the median (i.e., 50%-fractile) and 90%-fractile (value of Y that has a probability of not
being exceeded of 90%) of Y.
(c) Determine the mean and variance of Y by using the PDF of Y derived under (a).
(d) Determine the mean and variance of Y directly from the PDF of X.
Chapter 7 Solutions
Structural Analysis, SI Edition
Ch. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10P
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