Principles of Geotechnical Engineering (MindTap Course List)
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Chapter 16, Problem 16.2P

Refer to Problem 16.1. If a square footing with dimension 2 m × 2 m is used instead of the wall footing, what would be the allowable bearing capacity?

16.1 A continuous footing is shown in Figure 16.17. Using Terzaghi’s bearing capacity factors, determine the gross allowable load per unit area (qall) that the footing can carry. Assume general shear failure. Given: γ = 19 kN/m3, c′ = 31kN/m2, ϕ = 28 ° , Df = 1.5 m, B = 2 m, and factor of safety = 3.5.

Chapter 16, Problem 16.2P, Refer to Problem 16.1. If a square footing with dimension 2 m  2 m is used instead of the wall

Figure 16.17

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A square footing is shown in Figure below. Use Factor of Safety = 3 and Terzaghi bearing capacity equation. Determine the size of the footing if local shear failure is assumed
A rectangular footing has a dimensions shown and is acted upon by a dead load of 722 kN and a live load of 620 kN. The column dimension is 326 x 662 mm where he shorter dimension is parallel to B  The thickness of the footing is 408mm. f'c=28 MPa and fy=420 MPa for diameter 20mm bars. A=3.1m and B=5.1m
3. A square footing that carries an axial load of 150000kg has its bottom resting on a ground water table at a depth of 2.5m from the ground surface. Take PDRY = 1860kg/m3 and PSAT = 1950kg/m3, c = 1600kg/m2, ø = 30degrees. Use the approximate formulas for the determination of the bearing capacity factors. a.Compute the required width of the footing using a factor of safety of 2. b.Compute the ultimate bearing capacity of the soil. c.Compute the net factor of safety. d.Compute the net soil pressure.
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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