A 4m x 5m rectangular footing resting at ground level carries a uniform load of 550 kPa. Compute the vertical stress increment at a depth of 8.0m below the ground surface. a. Use 2:1 Approximation Method (70.51) b. Use 60 Approximation Method (58.36)

A 4m x 5m rectangular footing resting at ground level carries a uniform load of 550 kPa. Compute the vertical stress increment at a depth of 8.0m below the ground surface. a. Use 2:1 Approximation Method (70.51) b. Use 60 Approximation Method (58.36)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Q1. A square footing is located in a dense sand at a depth of 2.80 m. Determine the ultimate bearing…

A: Given:- The depth of the square footing = 2.80 m The footing size = 2.5 m The moist unit weight of…

Q: A circular footing is 3.16m in diameter. The bottom fotting is 2.81m below the ground surface. Moist…

A: ultimate bearing capacity of soilqu=1.3 CNc+γDfNq+.3DγNγ = A + B + C γ in…

Q: A square footing is proposed to distribute the load on dense soil as shown in Figure. Ground surface…

Q: gid shallow footing has the dimension of 1m x 1m, shown in the following figure. The depth of…

A: Width B = 1 mLength L = 1 mDepth of footing D = 500 mm = 0.5 mTo find:Shape factor and depth factor

Q: determine the net increase in stress (kPa) at a depth of 1.3 m below the footing. Provide your…

A: Given:- Depth of the excavation = 1.17 m Unit weight of the soil removed =…

Q: circular footing is 3.3 meters in diameter. The bottom of the footing is 2.6 m. below the ground…

Q: A strip footing was constructed on a pure sand which is 1.5 m wide with its base at a depth of 1 m.…

A: Given - Width = 1.5 m Depth = 1 m Yd = 16 kN/m3 Ny = 75 To find - The bearing capacity of strip…

Q: A square footing having a dimension of 3.2 m is supported by a soil (dense sand) with the following…

A: To Find :- Gross allowable bearing capacity using Terzaghi equations for various given locations of…

Q: I horizontal live load of 30 KN/m cted to a distance 0.30 m from the center of the footing. The base…

Q: Using terzaghi Problem No. 2 A circular footing with 1.50m diameter is to be constructed 1.22m below…

Q: A strip footing was constructed on a pure sand which is 1.5 m wide with its base at a depth of 1 m.…

A: Given- Width=1.5 m Depth =1 m, It is needed to find the bearing capacity.

Q: A footing with 2x5 m is founded at a depth of 1 m in a stiff clay of saturated unit weight 19 kN/m³,…

A: Saturated unit weight= 19 KN/m3 Depth of footing= 1 m Su= 105 Kpa Footing = 2*5 m

Q: A square footing of 2 m side is subjected to a vertical load of 2000 kN. Assuming load dispersion as…

Q: A square footing which carries an axial load of 13000 kg has its bottom resting on a ground water…

Q: A rectangular footing 8 m x 12 m carries a uniformly distributed load of (900+ 10Y) kN/m?. Evaluate…

A: Given: The size of the rectangular footing is 8 m x 12 m. The uniformly distributed load is (900 +…

Q: 120 mm 100 mm A load P =40 kN axial load is applied to a short wooden post that is supported by a…

Q: Problem 5 A strip footing shown has an inclined load acting at an eccentricity shown. Cohesion = 18…

Q: The 6m x 9m rectangular foundation shown cariies a uniform loau of 325 kPa. a. Compute for the net…

A: aDivide the rectangle into 4 parts b=92=4.5L=62=3mm=bz=4.56=0.75n=Lz=36=0.5Using graph…

Q: A square footing is located in a dense sand at a depth of 2.80 m. Determine the ultimate bearing…

Q: A square footing 2.5m x 2.5m is shown in the figure below. Determine the magnitude of the safe gross…

A: Given that :-Square Footing = 2.5 m 2.5 m = 15 c = 0ϕ = = 19 = 9.19 = 2 m = 1 mF.O.S = 3Required…

Q: A square footing of size 2.5 m x 2.2 m is founded at a depth of 1.2 m below the ground surface in a…

A: To calculate: Ultimate bearing capacity Net allowable bearing pressure Allowable load on footing…

Q: A circular footing having a diameter of 1.47m has its bottom at a depth of 2.54 m from the ground…

Q: A footing 2.50 m x 2.50 m is located at a depth of 1.5 m in sand. The shear strength parameters to…

A: The ultimate bearing capacity is the maximum possible load that can be supported without failure…

Q: ASSIGNMENT 2 Obtain the stress distribution of the following spread footing when: A)N= kN) 70 50 B)…

Q: A square footing shown has the following details: Unit weight of soil = 17.66 kN/m3 Saturated unit…

Q: A Strip 100oting 1 m. Using Terzaghi's method, the ultimate bearing capacity of strip footing will b…

Q: circular fooring is 3.22m in diameter. The bottom of the footing is 2.87m below the ground surface.…

A: Diameter of footing, depth of footing, bulk density and saturated density, internal friction angle…

Q: A footing with 2×5 m is founded at a depth of 1 m in a stiff clay of saturated unit weight 19 kN/m³,…

A: Saturated unit weight= 19 KN/m3 Depth of footing= 1 m

Q: A square footing is shown below. The footing will carry a gross load of 700 kN. Using a factor of…

Q: A square footing is loaded as shown in Figure 05.13. The center of the base of footing is at…

Q: Calculate the number of steel bars #6 in a square footing necessary to resist a factored moment of…

A: The given data is as follows: Imperial bar size=#6Factored moment=50 T-mB=2.6 mFy=4200 kg/cm2f'c=250…

Q: 2. A circular footing having a diameter of 2m has its bottom at a depth of 2.5m from the ground…

Q: A footing 2 m x 3 m in size transmits a bearing pressure of 140 kN/m2 on a soil having E= 5 × 104…

Q: A circular footing of 2.3 m diameter constructed on clay is having the following properties: C = 48…

Concept explainers

Methods to Determine Vertical Stress

The load applied to the soil is transferred to the underground. The presence of water at soil pores and solid grains above the soil are the primary components that are responsible for the effective load transfer. Due to the load acting, the internal component of the soil or the underground formations undergoes deformations or a tectonic shift. The amount of deformation depends upon the amount of load acting on the soil surface, which indeed, depends on the weight of everything present above the soil. Due to this, the underground soil element develops internal stresses which try to resist the tectonic changes.

Question

A 4m x 5m rectangular footing resting at ground level carries a uniform load of 550 kPa.
Compute the vertical stress increment at a depth of 8.0m below the ground surface.
a. Use 2:1 Approximation Method (70.51)
b. Use 60 Approximation Method (58.36)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

M Im QUESTION 2: Check if the base area of 2m x 2m is adequate for the footing under the loading shown in the figure. Allowable soil pressure is 0.25 MPa. N=900 KN M=150 kNm H=75 KN
Q: A rigid shallow footing has the dimension of 1m x 1m, shown in the following figure. The depth of footing, mechanical properties of supporting soil and the load transmitted through the footing are shown in the figure. Determine shape factor (Is) and depth factor (I). 500 mm E,= 6500 kN/m² H₂=0.3 E, - 5000 kN/m² 1₂ = 0.3 E, 10000 kN/m = H₂ = 0.3 Ao = 200 kN/m² 0.0 m 3.0 m 5.0 m 8.0 m
Solve using eurocode 7, design approach 1, combination 2
Design of Shallow Footing Question: (See photo) Note: Avoid rounding off values in the course of solution proper as much as possible.
Q4: Use the rectangular loaded area to calculate the increase in vertical stresses at points (A) and (B) due to the loaded area of footing. Choose figure (1) or (2). Top view Top view It 10 m.X. 10m. 4-15006 AWT MPRESSIBLE CLAY 1 CLAY 1 CLAY 2 10m x 10m - 150 d 777777777 G.W.T CLAY 1 CLAY 1 CLAY 2
For general c- soil, cohesion c is 50 kPa, the total unit weight y. is 20 kN/m3 and the bearing capacity factors are N= 8 and = 3 and N, = 2. Using Terzaghi's formula. Na Calculate the net ultimate bearing capacity for a strip footing of width B=2m at depth z = 1 m. Considering shear failure only, estimate the safe total load on a footing 10m long by 2m wide strip footing using a factor of safety of 3. %3D
Example: 1 • A square footing 2.5m x 2.5m is shown in the figure below. Determine the magnitude of the safe gross load (using MEYERHOF'S method and factor of safety of 3) that the footing can carry. 1m Bearing Capacity 1m y = 15kN/m³ c=0 = 35⁰ Yat=19kN/m²
Example: 1 • A square footing 2.5m x 2.5m is shown in the figure below. Determine the magnitude of the safe gross load (using MEYERHOF'S method and factor of safety of 3) that the footing can carry. 1m Bearing Capacity 1m y = 15kN/m³ c=0 = 35⁰ Yat=19kN/m²