A column is supported on a footing as shown in the figure below. The water table is at a depth of 1 m below the base the base of the footing. Column Footing 1.5 mx 3.0m GL 1.0 m Sand Y = 18 kN/m² N₂-24 N, 20 The safe load (kN) that the footing can carry with a factor of safety 3 is

A column is supported on a footing as shown in the figure below. The water table is at a depth of 1 m below the base the base of the footing. Column Footing 1.5 mx 3.0m GL 1.0 m Sand Y = 18 kN/m² N₂-24 N, 20 The safe load (kN) that the footing can carry with a factor of safety 3 is

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 5.5P

See similar textbooks

Related questions

Q: Problem.№3- The plan of a mat foundation is shown in Figure. Calculate the soil pressure at points…

A: Plan of a mat foundation Column size 0.5m x 0.5m

Q: A 1mx1m square concrete footing carrying a vertical load of 500KN founded on fully saturated clay.…

Q: An R.C. Column footing 2.26 m in square shape is to rest 1.5 mbelow level ground level is on…

A: Given:- The dimension of the square footing = 2.26 m The depth of the ground level = 1.5 m The unit…

Q: A column footing 6 ft X 6 ft is buried 5 ft below the ground surface in dense cohesionles soil. The…

Q: A rectangular footing 3m x 2m exerts a pressure of 100kN/m2on a cohesive soil Es= 5x104 kN/m2and µ =…

A: Note: Hi! Thank you for the question As per the honour code, We’ll answer the first question since…

Q: A strip footing for a masonry wall is 1.1 m wide and is supported by the soil profile shown in the…

Q: Q2/ Figure below shows the plane of a square footing constructed on a medium dense sand and…

A: Area of footing =6×6=36 m2Because of eccentricity area of footing will be effectivereducedeffective…

Q: A rectangular footing has dimensions shown and is acted upon by a dead load of 570.00 kN and a live…

A: Given data, Dead Load = 570 KN Live load= 621 KN Column dimension =366*576 Thickness of footing =…

Q: Q2/ Design the footing shown the figure below, using fc = 24 Mpa and fy = 415 Mpa N M M = 800 KN-m…

A: Solution: Given: M = 800 kNm DL = 800 kN LL = 800 kN Column = 0.5 x 0.5 m thickness = 3 m fc = 24…

Q: Calculate the ratio of the Ultimate Shear Force to Shear Capacity in two-way shear.

A: The values given in the question are as follows Dead load(DL)=772 kN Live load(LL)+620 kN short side…

Q: for the combined footing shown; a) Calculate the column loads Q1 and Q2 that produce the soil…

A: Net compressive load,Qtotal=Q1+Q2Net Moment,MNet=Q2×2.5-Q1×1.5Soil pressure at left most point can…

Q: 3m 75 KEN m Im The footing plan is shown loaded uniformly in a rectangular area. What is the value…

Q: A rectangular footing of B=3 and L=6 rests at the depth of 2 m below the ground level. The stress…

A: Based in the given data, we can use the stress increase due point load equation of Boussinesq's.…

Q: The square footing shown in the figure carries a load of 3500 kN. Assume that the stress below the…

A: We have to determine the value of settlement of clay layer as per the given data in the question.

Q: T Estimate the combined settlement of the square footing shown below due to compression of the sand…

A: Introduction- Combined footing- When the distance between two columns is narrow, the soil bearing…

Q: Figure shows the geometry of a strip foðting supporting the load bearing walls of a three storied…

Q: to be constructed on able is at depth 15 pacity and the colum

Q: A combined trapezoidal footing of length L supports two identical square columns (P and P;) of size…

Q: QI/ for the (3m*2m) footing shown in fig. below find the column load (v) that can be carried by the…

A: Given: Size of footing = 3×2 m ϕ=20°e=0.8Gs=2.7 c=30 kN/m2 γ=19 kN/m3 Factor of safety = 3 Depth of…

Q: You are to desigh a square footing having properties as given: Dimensions: B-2m a-0.6m b-im c-0.4m…

A: Footing: The footing is the lowest framework in any building, and it is responsible for transferring…

Q: Based on the figure shown below determine the width of the ?footing (B) in (meter) F2 F1 0.8 m 3.5 m…

A: Given:- The load on column 1 (F1) = 1725 N The load on column 2 (F2) = 1028 N The allowable stress…

Q: 2- Determine the stress increase below the center of the footing using both theoretical and…

Q: A strap footing consists of two footings connected by strap beam. Allowable soil pressure is 450…

A: Column size 400x400 qall = 450KPa

Q: H+ M 1m QUESTION 2: Check if the base area of 2m x 2m is adequate for the footing under the loading…

A: Base area of 2m×2m Allowable soil pressure= 0.25 Mpa= 250 kN/m2 N= 900 kN M= 150 kNm H= 75 kN

Q: A circular footing of (225 kPa) is resting on a dry soil with a concentrated load (P) which act at…

A: Compaction is the process in which soil gets distributed properly, and its quantity gets pressured…

Q: A rectangular footing has dimensions shown and is acted upon by a dead load of 668.00 kN and a live…

A: The given va;lues are as follows,Dead load =668.00kNLive load…

Q: b) The footing shown in Figure 3 is subjected to a uniform load of 300kPa. Calculate the vertical…

Q: A 2m x 3m footing constructed on a sand deposit (as shown in the Figure below) is subjected to…

A: Solution Note- “Since you have posted a question with multiple sub-parts, we will solve the first…

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

A: Ductile detailing is generally provided in structures that lead to adequate toughness and ductility…

Q: An eccentric footing shown has the following loads which acts on the center of the column: Pdl=400…

A: The footing can be loaded in three different ways namely, Concentric loading The center of…

Q: A wall footing is shown. The properties of soil and concrete are as follows: Unit Weight of concrete…

A: Given data- Unit Weight of concrete = 24 kN/m³ Unit weight of soil = 16 kN/m³ Allowable soil…

Q: Q26) Bending moment at the fixed ends of the beam built in ends and centrally loaded as shown in…

Q: A rectangular footing 2.0 m x 2.5 m carries three columns at distances from the footing center as…

A: Data is given

Q: A 2 m wide strip footing is to be placed as shown in figure below, Vertical stress at point A is…

A: Width of strip B=2 m, q=100 kN/m2 To Find- The value of the vertical stress at point A.

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 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

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 by step

Solved in 2 steps with 1 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

Solve the problem
Sp
As ap. Hurry quick.
QI/ for the (3m*2m) footing shown in fig. below find the column load (v) that can be carried by the footing using F.S.=3. V= ? 3x2 m B $= 20° c:30 KN/m² e zo-8 Gs = 2-7 Y= 19 kN/m2
Two flexible square footings with B = 1 m, are embedded at 1 m depth. The first footing is embedded in a sandy soil layer and the second one is embedded in a clayey soil layer. Given that the depth of each soil layer is 5 m calculate the following. a. Calculate the elastic settlement at the center of the foundation in the sand layer If it is loaded at 400 kN. b. Calculate the elastic settlement at the center of the foundation in the clay layer If it is loaded at 600 kN/m². c. What is the differential settlement between the two footings due to the elastic settlement? d. From part c, what is the maximum Saturated clay OCR = 3 PI=30 C₁₁ = 200 kPa Ms=0.5 Saturated sand Ps=0.25 E₁ = 10 MPa Rigid layer allowable total settlement in the clay if the safe differential settlement is 25 mm and what could cause this settlement?
2- Determine the stress increase below the center of the footing using both theoretical and approximate methods at the top, middle and bottom of the clay layer. In addition, determine the average stress increase for the clay layer. Dimensions in Heights in m Unit weights in kN/m3 kN m P2 H1 H2 H3 BL Hw 2.5 Yoati 18.0 19.0 3.0 3.0 2.0 16.0 2 3 1174 Load - 0 Hw H1 H2 H3 OSand Clay (hoemally conactiduted)
*** for the combined footing shown; a) Calculate the column loads Q1 and Q2 that produce the soil pressure distribution shown (Ignore the weight of the footing). b) What rigid body moment is required to make the soil pressure distribution uniform? What is its direction? What will be the uniform soil pressure? Q1 Q2 B’L 12 бе q = BL В Width of the foundation =1.0m 3m 4m 2m q=100 kN/m² B/2 B/2
A rectangular footing 2.0 m x 2.5 m carries three columns at distances from the footing center as shown below. The column loads are: P₁ = 400 kN and P₂ = P3= 200 kN. For the soil profile and properties given, check the safety factor against bearing capacity failure. (Use yw = 10 kN/m³) 0.4 m 0.2 m 2 N Depth be w surface in meters 4 C. 3 (a TENT 7 8 Note: pictures are not drawn to sale 00 0.8 m B 0.8 m 3 Water table ROCK Soil surface WIT Sand c = 0 kPa, = 30° = 16 kN/m³ Y Ysat = 20 kN/m³ Es = 12 MPa, v = 0.3 Clay c = 60 kPa, = 0° Y = 14 kN/m³ Ysat = 19 kN/m³ Cc = 0.3, Cs = 0.1 eo = 1.0 P= 245 kPa
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.
The square footing shown in the figure carries a load of 3500 kN. Assume that the stress below the footing is distributed at a slope of 1H:2V. The clay layer is overconsolidated with OCR -2 Q - 3500 kN 4mx Sm 0.6 m Ya - 17.5 kN/m Sand 0.6 m GWT Sand 1.2 m 7'= 8.49 kN/m Yrat = 17.1 kN/m Clay e, = 1.4 C, = 0.06 = 0.38 1.2 m etermine the settlement of the clay layer.
I need help in 10 meintes please
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.