Problem 3: An isolated rectangular footing is subjected to a vertical load of P and a horizontal force of H as shown in the Figure. For this problem, P = 2,100kN and H = 120kN. (a) What is the maximum soil pressure at the base of the footing? (b) What is the minimum soil pressure at the base of the footing? (c) What is the minimum permissible foundation pressure? H 0.50 m Y.. = 17 kN/m³ 2.50 m 1.50 m Y = 24 kN/m³ 0.70 m T 3.00 m

Problem 3: An isolated rectangular footing is subjected to a vertical load of P and a horizontal force of H as shown in the Figure. For this problem, P = 2,100kN and H = 120kN. (a) What is the maximum soil pressure at the base of the footing? (b) What is the minimum soil pressure at the base of the footing? (c) What is the minimum permissible foundation pressure? H 0.50 m Y.. = 17 kN/m³ 2.50 m 1.50 m Y = 24 kN/m³ 0.70 m T 3.00 m

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Shallow Foundations: Ultimate Bearing Capacity

Section: Chapter Questions

Problem 6.17P: A 2.0 m 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry a...

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2. A medium dense sand is proposed to support a square foundation having a width and length of 5 feet as shown below. The bottom of the footing is 2.5 feet below the ground surface. The water table is 4 feet below the bottom of the footing. Using a factor of safety of 3, what is the allowable bearing capacity of the proposed footing? Gs= 2.6 e = 0.5 Ø = 35° 5 ft d = 4 ft
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A 2.0 m 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry a column load Q. The depth of the footing is 1.0 m. The soil parameters are: c = 0, = 26, = 19 kN/m3, and cu = 60 kN/m2. Determine the maximum possible value for Q, considering short-term and long-term stability of the footing.
A flexible circular footing of radius R carries a uniform pressure q. Find the depth (in terms of R) at which the vertical stress below the center is 20% of q.
A 2.0 m 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry a column load Q. The depth of the footing is 1.0 m. The soil parameters are: c = 0, =26, = 19 kN/m3, cu = 60 kN/m2 (=0 condition). Determine the maximum possible value for Q, considering short-term and long-term stability of the footing.
Refer to the rectangular combined footing in Figure 10.1, with Q1 = 100 kip and Q2 = 150 kip. The distance between the two column loads L3 = 13.5 ft. The proximity of the property line at the left edge requires that L2 = 3.0 ft. The net allowable soil pressure is 2500 lb/ft2. Determine the breadth and length of a rectangular combined footing.
1) A footing whose one side spans 4.2m carries a 520 kN dead load and 640kN live load from a reinforced concrete column. The column measures 500mm parallel to the long side of the foundation, and 800mm on the other side. Assume effective soil bearing capacity of 80kPa, concrete compressive strength of 21 MPa, and steel yield strength of 280 MPa. Determine the following: • Dimensions of the footing (use 100mm increments) • The thickness of the footing (use 10mm increments) • Number of 20mm reinforcements along each dimension
A strip footing carries a load 14506 lbs per foot of length. The footing has a width of 2.3 ft. Determine the increase in vertical stress directly below the center of the footing at a depth of 0.8 ft. Provide your answer in psf, to 2 decimal place. Do not include units in your response.
2. Compute the following: Compute the following: (4) a. Effective stress before loading. b. Induced stress and effective stress after loading at the edge of the footing c. Compute effective stress if ground water table was at the same level as ground level. d. Calculate new Induced stress and effective stress after loading at the edge of the footing. 10° 10 30' 30⁰ Width = 10ft, q = 2000 psf Sand ym= 110 pcf ysat = 125 pcf ** Clay ysat = 100 pcf Gravel ysat = 130 pcf Pt. B Pt. C Pt. A O t
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A rectangular footing has dimensions shown and is acted upon by a dead load of 668.00 kN and a live load of 551.00 kN. The column dimension is 282x572 mm where the shorter dimension is parallel to B. The thickness of the footing is 564mm. f'c=28 MPa and fy=420 MPa for diameter 20mm bars. A=3.3m and B=5.7m Calculate the ratio of the Ultimate Shear Force to Shear Capacity in one- way shear. Consider critical case only. Answer is 0.6175 (Complete Solution)A