Calculate the Safe bearing capacity per unit area of(i) a strip footing 1 m wide (ii) a square footing 3m x 3m (iii) a circular footing of 3m diameter. (iv) a rectangular footing of 1.3x 2.2 m. Unit weight of the soil 1.8 t/m3, cohesion = 2t/m2 And Ф = 200, Nc =17.5, Nq = 7.5 and N γ = 5. Depth of footing is 1.6m below ground surface

Q: Design of Shallow Footing Question: (See Photo) Note: Avoid rounding off values in the course of…

A: Given: An eccentrically loaded square footing of size 1.36 x 1.36 m           Depth of footing = 1.7…

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: Problem (5.3): (Total immediate settlement) Determine the total immediate settlement of the…

A: Given: A rectangular footing of dimensions 3m X 4m is placed on a two layered soil deposit as shown…

Q: Chapter 5: Settlement of Buildings X6-3) Determine the total immediate settlement of the rectangular…

A: The given data is from the figure: Df/B=1/3=0.33L/B=4/3=1.33μo=0.93AndFor…

Q: Problem (5.3): (Total immediate settlement) Determine the total immediate settlement of the…

A: Problem 5.3: Since the soil profile is made up of two different soils, then the total immediate…

Q: Question Attached

A: Consider free body diagram;

Q: 5- A 1.5x1.5 m square footing is constructed in a cohesive soil at depth 1.2 m the ultimate bearing…

A: Square footing 1.5×1.5m Ultimate bearing capacity = 728 KN/ m2Depth of foundation = 1.2 me = 0.18 m…

Q: A footing carrying a load of 1500 kN. Depth of Footing is 3 m. maximum tolerable settlement is 45 mm…

A:

Q: A square footing has a dimension of 1.43 m x 1.43 m and has its bottom 1.07 m below the ground…

A: Answer we are given Square footing 1.43 x 1.43 Cohesion c =1718 kg/m2 Angle of friction  = 30…

Q: 1- Given Data Footing = 3.25 ksi = 60 ksi = 2.7 ksf Column = 350 Kips = 250 Kips D L fy 40 in × 30…

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Q: correctly

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Q: A strip footing is to carry a load of 750kN/m at a depth of 1.6m in acohesive soil having unit…

A: load per length (P/L)=750 KN/mdepth   Df=1.6 munit wt γ=18 KN/m3   and cohesion  C=20 KN/m2factor…

Q: Problem 2 A square footing having a dimension of 3.5m is supported by a soil with the following…

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Q: The specifications call for maximum allowable settlement of 25mm. Using the classical method…

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

A:

Q: A strip footing (6 m wide) is designed for a total settlement of 40 mm. The safe bearing capacity…

A:

Q: Q/ For the rectangular footing with dimensions (3*6) Show in figure (4). Calculate the immediate…

A: Given data:- Dimension of rectangular footing is 3×6 m.

Q: For the rectangular footing shown in Fig. (4), if B = 4 m find: a) Length of footing (L) b) Depth of…

A: To determine the length of the footing: Pu =1.4 PD +1.7 PL      = 1.4 X 1200 + 1.7 X 800 + 10% of…

Q: Given: a square footing (BxB) shown in figure. If the allowable consolidation settlement (Sc = 25…

A:

Q: 0.75 kN/m 3.75 kN/m A 2.5 m- Hinge B -2.5 m- a) What is the magnitude of the total reaction at A?…

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Q: At a construction site located in Tanay, the soil (medium dense) is found to have the following…

A: The values given in the question are as follows Cohesion of soil(C)=6 kPa Unit weight of…

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

A:

Q: Unit weight of soil =y Groundwater table Yut ysat B h a 17.65 kn/m3 18.65 23.94 25° 1.8 1.5 12° 2.

A: Given Data:- γ = 17.65 kN/m3γsat=18.65 kN/m3C'=23.94ϕ=25°B=1.8Df=2h=1.5α=12° As, ϕ=25° Nq= 12.7Nc=…

Q: resolve problem: Redo problem (5.3) but with sand instead of clay as shown in the figure below.

A: on replacing clay layer by sandtotal depth of the sand become   z=5.0 mthen immediate settlement of…

Q: 1. A rectangular footing 2.0 m by 3.0 m is built in a homogeneous bed of sand of having bulk unit…

A: (a) For given angle of shearing resistance, we get

Q: A circular footing is 3.73 m in diameter. The bottom of the footing is 2.68 m below the ground…

A:

Q: 5- A 1.5x1.5 m square footing is constructed in a cohesive soil at depth 1.2 m the ultimate bearing…

A: Square footing 1.5×1.5m Ultimate bearing capacity = 728 KN/m2Depth of foundation = 1.2 me = 0.18 m

Q: Home work: Q1/ Determine the total immediate settlement of the rectangular footing shown in igure…

A: Calculating the stress at the base before placing footing: σ0=γZ σ0=20×1σ0=20 kN/m2

Q: 5-A 1.5x1.5 m square footing is constructed in a cohesive soil at depth 1.2 m the ultimate bearing…

A: b = 1.5 mQu = 728 kN/m2 e = 0.18 m

Q: 5-A 1.5x1.5 m square footing is constructed in a cohesive soil at depth 1.2 m the ultimate bearing…

A: B = 1.5 m e = 0.18 mQu = 728 kN/m2

Q: 1. A continuous footing is shown in the figure below. Using Terzaghi's ultimate b.c. equation and…

A: = 112 pcf c' = 450 psf  = 22o Df =  4ft B = 3 ft FS = 3 NOTE : As per guidelines, first question is…

Q: The allowable settlement for the shown square footing is 2.5 cm. the footing is placed on clay soil…

A: Data given Find : Consolidation settlement

Q: Problem (5.3): (Total immediate settlement) Determine the total immediate settlement of the…

A: Diagram for footing placement

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.