c. Allowable soil bearing capacity, qall (in kN/m2) if factor of safety is 3.0qall =Thank you Problem Set 3 (PS3)Y-17 kN/md-36°c'-10 kN/m?Df=1.5mB=1.25mThe above figure shows a square footing. Theproperties of the soil supporting the foundation areshown in the figure.Determine the following (a, b, c & d).Note:1. Submission of solutions for PS3 is not required.2. In all the steps in your solution, round the answersto two decimal places. This is important so youranswer will match the answer key

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Answered: Y-17 kN/m d-36° c'-10 kN/m? Df=1.5m…

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter5: Ultimate Bearing Capacity Of Shallow Foundations: Special Cases

Section: Chapter Questions

Problem 5.1P

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For the mat in Problem 16.15, what will be the depth, Df, of the mat for FS = 3 against bearing capacity failure? 16.15 Consider a mat foundation with dimensions of 18 m 12 m. The combined dead and live load on the mat is 44.5 MN. The mat is to be placed on a clay with cu = 40.7 kN/m2 and = 17.6 kN/m3. Find the depth, Df, of the mat for a fully compensated foundation.
Repeat Problem 11.1 based on limit state design, using the factors given in Table 11.4. 11.1 A continuous foundation is required in a soil where , , and . The depth of the footing will be 1.0 m. The dead load and the live load are 600 kN/m and 400 kN/m, respectively. Determine the required width for the foundation based on allowable stress design with FS = 3, using Eq. (6.10) and Table 6.1.
Refer to Figure 5.2. Given: B = L = 1.75 m, Df = 1 m, H = 1.75 m, = 17 kN/m3, c = 0, and = 30. Using Eq. (5.6) and FS = 4, determine the gross allowable load the foundation can carry.
Hope your help foundation (CEE 430) thanks ?
Q2/ Design the footing shown the figure below, using fc = 24 Mpa and fy = 415 Mpa N M M=800 KN-m DL= 800 KN LL=800 KN w=0.5 m 2.25 m 60 kPa Love (L-w) 2 2.25 m 3 m 239 kPa
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
Hope your help foundation question (CEE430) thanks
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 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 The foundation is presented in problem above is subjected to a vertical force as noted and a single moment of 100 kip-ft perpendicular to 10ft face. Calculate: a. Ultimate bearing capacity using modified method b. Factor of safety in design
Estimate the combined settlement of the square footing shown below due to compression of the sand (8) and consolidation settlement (Sc) of the clay. Assume that the load Q already includes the weight of the footing and the weight of the soil above the footing. Assume t = 50 years. Q = 250 kips (Square Footing) Sand #1 = SW 2 ft y = 120 pcf $ = 25° C' = 0 psf N60 = 6 6 ft 4 ft -> Clay = CH %3D Ysat = 100 pcf Su = 1300 psf e, = 0.9 oc = 1300 psf Cr = 0.05 Cc = 0.55
Design the footing
A structural engineer finished a design of a library. They determine that each column will carry 1000 lbs. the soil beneath the footing has the properties: gamma= 130 pcf, c= 75psf, phi= 40 degrees. The groundwater table is of great depth so it’s no concern. Sketch figures. What is the minimum size of the footing for a factor of safety of 3? Case 1: assume square footing Case 2: assume round footing

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Y-17 kN/m d-36° c'-10 kN/m? Df=1.5m B=1.25m The above figure shows a square footing. The properties of the soil supporting the foundation are shown in the figure. Determine the following (a, b, c & d).