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 2, Problem 2.11QPP
To determine
The factor of safety required.
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A column is supported on a footing as shown in the figure below. The water table is at a depth of 10
m below the base the base of the footing.
Column
Footing
1.5 mx 3.0 m
GL
1.0 m
Sand
Y = 18 kN/m²
N₂-24
N₁=20
The safe load (kN) that the footing can carry with a factor of safety 3 is
Sp
transportation engg
max stress
Chapter 2 Solutions
Foundation Design: Principles and Practices (3rd Edition)
Ch. 2 - Classify the uncertainty associated with the...Ch. 2 - Figure 2.1 shows the PDF for a normal distribution...Ch. 2 - List three sources of epistemic uncertainty...Ch. 2 - Using a random number generator create a sample of...Ch. 2 - A certain column will carry a dead load estimated...Ch. 2 - A simply supported beam has a length of 3 m and...Ch. 2 - Using the data shown in Figure 2.5 determine the...Ch. 2 - The capacity for a certain foundation system is...Ch. 2 - We wish to design a shallow foundation with a...Ch. 2 - Prob. 2.10QPP
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- i. Discuss about Ultimate Bearing Capacity and types of bearing capacity failures.arrow_forwardAn R.C. Column footing 2.26 m in square shape is to rest 1.5 mbelow level ground level is on cohesive soil. The unit weight is17.6kN/m3. What is the safe load if cohesion is 30kN/m3Factor of safety 2.4? Angle of internal friction 33° by IS code.arrow_forwardI need solutions in15 min pleasearrow_forward
- can you answer me?arrow_forwardanswer the image belowarrow_forwardA reinforced concrete tower is provided on a ring foundation of inner diameter of 6m and outer diameter of 12m. If the foundation carries a distributed load of 250kN/m2, determine the vertical stress at a depth of 6m below the center of the foundation. Select the correct response: 90.497 kPa 66.027 kPa 83.527 kPa 70.567 kPaarrow_forward
- A combined trapezoidal footing of length L supports two identical square columns (P, and P;) of size 0.5 m x 0.5 m, as shown in the figure. The column P, and P, carry loads of 2000 kN and 1500 kN, respectively. L 5 m 1.5 m P2 1 5 m If the stress beneath the footing is uniform, the length of the combined footing L (in m, round off to two decimal places) is P.arrow_forwardA pad footing of dimensions 1.2 m by 2.5 m. applies a surface pressure of 425 kPa. The pad footing is underlain by a 1 m thick layer of gravel soil, then a 4 m thick layer of clay soil. Using the "2:1 load distribution of a rectangular load" method, calculate the applied pressure beneath the footing at the top of the clay layer, and 1.5 m below the top of the clay layer.arrow_forwardThe figure given below represents the contact pressure distribution underneath a Footing 世。 (A)Rigid footing on saturated clay (B) Rigid footing on sand (C) Flexible footing on saturated clay (D) Flexible footing on sandarrow_forward
- A rectangular footing of B=3 and L=6 rests at the depth of 2 m below theground level. The stress induced by the footing is 40 kPa. The unit weight of the soil is 18kN/m3and the groundwater table is at a great depth. A pipeline is to be constructed under thefooting. In order to design the strength of the pipeline, calculate the stress increase on thepipeline by using Boussinesq’s Method in the case:a) Pipeline at 5 m below the centerline of the footingb) Pipeline at 5 m below the corner of the footingarrow_forwardThe foundation (base) of a long retaining wall is required to support the load (including self-weight of the base and the wall) and moment (this comes from the lateral loads on the wall) shown in Figure below Determine the factor of safety against bearing capacity failure (using TCVN & Terzaghi bearing capacity theory) Would the settlement of the base be uniform? Discuss your answer.arrow_forward250 30/0 Priv Ter * Question Completion Status: 87°F Cloudy L 4 PA 5 6 Cross Section Area, A = 0.04 m² Axial Load, P = 171 KN Angle, 0 = 53° 7 # The bar is subjected to the axial load. There is a shaded section which is oriented at 0 from the horizontal. Given: 8 10 Moving to another question will save this response. LA A Determine the average normal stress (MPa) acting over the shaded section. Express your answer in 2 decimal places. $ 12 13 14 15 16 % P > S (C 17 & 18 19 hp W 00 20 6arrow_forward
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