A load of 425 kN/m is carried on a strip footing 2m wide at a depth of 1m in a stiff clay of saturated unit weight 21kN/m3 , the water table being at ground level. Determine the factor of safety with respect to shear failure: (a) when c u = 105 kN/m2 and Φu= 0  (b) when c=10 kN/m2 and Φ= 28 degree

Q: Q=400KN Ground Level 38° #16KN.m3 K=0.90 5m Dense Sand tan-0.45 N-80 Saturated Sand 38° 4m…

A: Given a soil profile consisting of dense sand for the top 5 m, saturated sand for next 4 m and hard…

Q: A load of 425 kN/m is carried on a strip footing 2 m wide at a depth of 1 m in a stiff clay of…

A: Given : Load = 425 kN/m Width of strip footing = 2 m depth of strip footing = 1 m Saturated unit…

Q: a) Find the allowable load on the foundation by Terzaghi method, assuming a general shear failu with…

A: AnswerNet allowable load = Qall Cohesion C =13 kpaDry Unit weight of soil () =17 Kn/m3Saturated Unit…

Q: A rectangular footing 3 × 2 m with 0.5 m thickness is under a column 420 × 420 mm. It is subjected…

A: Given: Dimensions of footing = 3 x 2 m Thickness of footing = 0.5 m Dimensions of column = 420 x 420…

Q: 7. [Soil Bearing Capacity] ( a gross load of 700 kN. Using a factor of safety 3, determine the…

A: Given data in question  Load Unit weight  Cohesion  Depth FOS To find out  Width B

Q: A square footing (1.5 m × 1.5 m) is located at a depth of 1.0 m. The footing is subjected to an…

A:

Q: A strip footing 1.5 m wide is located at a depth of 0.75 m (equal to the foundation thickness) in a…

A: Width of strip footing = 1.5m , Depth = 0.75m = Thickness of foundation , Unit weight of sand =…

Q: Calculate the width of footing required

A:

Q: Q3) A 2 mx 3 m spread footing placed at a depth of 1.75 m on a clayey sand soil with a unit weight…

A:

Q: A square footing 2m x 2m, is to be constructed at a depth of 1.5m below the surface of a deep…

A:

Q: A load of 430 kN/m is carried on a strip footing 2m wide at a depth of Im in a stiff clay of…

A:

Q: a) Find the allowable load on the foundation by Terzaghi method, assuming a general shear failu with…

A: Answer Net allowable load = Qall  Cohesion C =13 kpa Dry Unit weight of soil (γd) =17 Kn/m3…

Q: A 300 mm thick footing slab supports a 300 mm thick concrete wall carrying uniform service dead load…

A: Given: The thickness of the footing slab is 300 mm. The thickness of the wall is 300 mm. The dead…

Q: A concentrically loaded isolated square footing of size 2 m x 2 m carries a concentrated vertical…

A:

Q: Given: a 0.3 m b = 0.6 m c = 0.6 m d = 3.5 m e = 5 m f = 0.5 m Soil unit weight = 17 kN/m3 Concrete…

A:

Q: Question attached

A: Solution Given Data c1=0c2=0γ1= 18 kN/m3γ2=16.7 kN/m3

Q: 7. [Soil Bearing Capacity] a gross load of 700 kN. Using a factor of safety 3, determine the…

A:

Q: rectangular footing 3 × 2 cted to a moment of 90 kNm

A: Given data Rectangular footing= 3×2m Column=420×420mm E=21×103kN/m2 μ=0.3

Q: 15 A slope 60 ft high has a face inclination of 30°. Uniform soils comprise the slope and foundation…

A: Data is as given

Q: A reinforced concrete tower is provided on a ring foundation of inner radius of 8m and outer radiu…

A:

Q: A 1.57 -m. deep 2.5 m. x 3.3c m. footing has to be constructed as shown in Figure 1. The soil…

A: Calculate the ultimate bearing capacity of the rectangular footing by Meyerhof's method,  qu =…

Q: 10-) Determine the factor of safety for the figure below and state that if the design is acceptable…

A:

Q: i) Using Terzaghi's theory, determine the ultimate bearing capacity of a strip footing 1.5 m wide…

A:

Q: Q2: A square footing (2x2 m) is constructed on a sandy soil as shown below. Find the maximum…

A:

Q: (i) A multistory building with a basement is to be constructed. Top 4 m consists of loose silt,…

A:

Q: In the given soil profile below determine a) Maximum and minimum Principal stresses. b) Normal and…

A:

Q: For the given failure surface of the soil, the unit weight for both the soil A and B is 19 kN/m³. O…

A: Given data- Failure surface of the soil is shown in figure- Unit weight of both soils = 19 kN/m3,…

Q: highway embankment is to be constructed of height 10m over a soft clay deposit of 10m thick…

A:

Q: KN The square footing below is built on saturated sand with Ysat = 20 and Ø' = 30°. If the…

A: Given: Square footing dimension, 3 m x 3 m Internal friction, ϕ=30o Saturated unit weight of the…

Q: 3. A load P = 600-kN and a moment of Mx = 260 kN-m are applied on a 1.80 m by 2.75 m rectangular…

A: The given data is: Load applied to footing = 600 kN Moment applied to footing = 260 kNm Width of…

Load and resistance factor design

Load and resistance factors design (LRFD), also known as Limit state design (LSD), refers to the design method used in building engineering. A boundary condition is a condition of a structure where it can no longer meet the relevant design requirements. The condition may refer to the load level or other actions on the structure, while the terms refer to the integrity of the structure, suitability for use, durability, or other design requirements. A structure designed for LRFD is limited to keeping track of all possible actions during its design time and is always ready for use, with the appropriate level of reliability in each boundary condition. LRFD-based construction codes clearly define the appropriate levels of reliability in their instructions.