Foundation Design: Principles and Practices (3rd Edition)
Foundation Design: Principles and Practices (3rd Edition)
3rd Edition
ISBN: 9780133411898
Author: Donald P. Coduto, William A. Kitch, Man-chu Ronald Yeung
Publisher: PEARSON
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Chapter 7, Problem 7.4QPP

A column carrying a vertical downward unfactored load of 270 k is to be supported on a 3 ft deep square spread footing. The soil beneath this footing is an undrained clay with s u = 3 , 000 lb/ft 2 and γ = 117 lb/ft 3 . The groundwater table is below the bottom of the footing. Using the ASD method, compute the width B required to obtain a factor of safety of 3 against a bearing capacity failure.

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A column carrying a vertical downward unfactored load of 270 k is to be supported on a 3 ft deepsquare spread footing. The soil beneath this footing is an undrained clay with su = 3,000 lb/ft2and g = 117 lb/ft3 . The groundwater table is below the bottom of the footing. Using the ASD method, compute the width B required to obtain a factor of safety of 3 against a bearing cap-acity failure.
a square footing is to be constructed on a uniform thick deposit of clay with a unconfined compressive strength of 3kips/ft2. the footing will be located 5 ft below the ground surface and is designed to carry a total load of 300 kips. the unit weight of the supporting soil is 128lb/ft3. no groundwater was encountered during soil exploration. considering general shear, determine the square footing dimension, using a factor of safety of 3
2. A 10ft x 8ft foundation is set 4 feet below grade in the geotechnical setting provided in the above problem No 1, an applied load Q of 420kips is supported by this footing. Calculate the change of stress at 15ft and 30ft below grade at the center of the footing using: a. The 2:1 method b. m and n method

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Foundation Design: Principles and Practices (3rd Edition)

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CE 414 Lecture 02: LRFD Load Combinations (2021.01.22); Author: Gregory Michaelson;https://www.youtube.com/watch?v=6npEyQ-2T5w;License: Standard Youtube License