A 10ft x 8ft foundation is set 4 feet below grade in the geotechnical setting provided in the above problem No 1, an applied load Q of 420kips is supported by this footing. Calculate the change of stress at 15ft and 30ft below grade at the center of the footing using: a. The 2:1 method b. m and n method

Q: Question attached

A:

Q: The square footing shown below must be designed to carry a 2400 KN load. Use Terzaghi's bearing…

A: For ϕ=32°, Nc=45.44Nq=30.06Nγ=28.78   1. Water table is at 1m below the base of the footing…

Q: A 4-m square footing is shown in figure B which supports a load Q = 5000 kN. In this problem H1 = 8…

A: Figure and data is given

Q: Question attached

A: Question is based on foundation in sand.Unit weight of soil , depth of footing, eccentricity of load…

Q: For the following cases, determine the allowable gross vertical load-bearing capacity of the…

A: Given,B=3 ftDf=3 ftϕ'=28°c'=400 lb/ft2γ=110 lb/ft3for ϕ'=28°,Nc=32.3Nq=18.3Nγ=15.7allowable gross…

Q: A square foundation is 3m x 3m and is 1.5m below the ground surface. The soil supporting the…

A:

Q: of safety is 3. Using Terzaghi's Bearing capacity equation, determine the design load on the…

A: Give data A=1.5m×1.5m Friction angle, ϕ=28o C=15.2kPa unit weight=19.8kN/m3

Q: 60 kips 3 ft. B ) Compute the size of the square footing -) Compute the net allowable soil bear…

A:

Q: Fore the following cases, determine the allowable vertical load- bearcing capacity of the foundation…

A: (a) Here in this problem values of NC, Nq   and Nγ are not given.we can calculate these values by…

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 footing 2.25 x 2.25 m is located at a depth of 1.5 m in a sand, the shear strength parameters to…

A:

Q: A rectangular foundation 2 meters long and 4 meters wide is located on the surface of a sloping…

A: Hansen's method is used to find the ultimate bearing capacity of the soil. Hansen's method is…

Q: 2. A medium dense sand is proposed to support a square foundation having a width and length of 5…

A: Consider the free body diagram as;

Q: Q#3:…

A: The allowable safe bearing capacity is given by: Where,

Q: Question attached

A: Solution Given Data Column footing= 1.2 m*1.8 m

Q: Given the following foundation configuration find the change in stress 6ft below grade at points 1…

A: given load is a concentrated load convert it into distributed pressure q=load area=4503×8+7×8=5.625…

Q: A square foundation is 1.5 m x 1.5 m in plan. The soil supporting the foundation has a friction…

A: Given: The size of the square footing is 1.5 m x 1.5 m. The depth is 1 m. The unit weight of the…

Q: Question attached

A: Steps for calculating Factor of safety Determine gross ultimate bearing capacity. Determine net…

Q: Problem # 2 A square footing (8 ft x 8 ft) supports a square column 14 in x 14 in. The column and…

A:

Q: 3. A rectangular footing 5 ft x 2.5 ft is shown. Use the Meyerhof equation for the ultimate load for…

A:

Q: A square foundation of width B = 5ft is subjected to an applied load of 100 kips, find the change in…

A: Solution:

Q: For the following cases, determine the allowable gross vertical load-bearing capacity of the…

A:

Q: A 10ft x 8ft foundation is set 4 feet below grade in the geotechnical setting provided in the above…

A: The given data is: B=8 ft L=10 ft Q=420 kips Calculating increase in stress at 15 ft below the…

Q: Y-17 kN/m d-36° c'-10 kN/m? Df=1.5m B=1.25m The above figure shows a square footing. The properties…

A:

Q: Q1.1// The figure below shows the plan of a rectangular raft foundation which supports a total load…

A: Given: The total load is 40500 kN. The depth is 8 m. The x and y coordinates are (-9, -6.5).

Q: 2. A medium dense sand is proposed to support a square foundation having a width and length of 5…

A: Given- Gs=2.6e=0.5ϕ=35'Fos=3

Q: A square foundation is 1.5 m by 1.5 m in plan with other characteristics shown in the figure. The…

A: Given: The void ratio is 0.60. The specific gravity of soil is 2.65. The size of the square footing…

Q: A shallow continuous foundation is to be constructed on a soil under the ground' surface as shown in…

A: INTRODUCTION: Bearing capacity of soil: It is the strength or ability of soil to sustain the load…

Q: 2. A medium dense sand is proposed to support a square foundation having a width and length of 5…

A: It is required to determine the density of sand. The density of water is taken as 62.4 lb/ft3…

Q: A footing 2m x 2m exerts a pressure of 500 kN on the soil strata. The footing is placed at a depth…

A:

Q: The load on the square foundation with a vertical axis has an angle of 15 degrees. Based on the…

A: According to the general formula, the allowable tolerable load can be determined by the following…

Q: I. A shallow continuous foundation is to be constructed on a soil under the ground'. surface as…

A:

Q: The plan of a mat foundation is shown in Figure 1. Calculate the soil pressure at points A, B, C, D,…

A:

Q: The shallow foundation shown below measures 2 m x 3 m and is subjected to a centric load and a…

A: Solution: Shallow foundation measure=2×3 meB=0.2 meL=0.3 mdepth of foundation=30°Factor of…

Q: A square column foundation has to carry a gross allowable load of 1805 kN ( FS = 3). Given: D f =…

A: Given: The load on the column is 1805 kN. The factor of safety is 3. The depth of the footing is 1.4…

Q: Consider a combined rectangular footing with the following information: P1 = 1500 kN a1 = 1 m, az =…

A:

Q: I. A shallow continuous foundation is to be constructed on a soil under the ground' surface as shown…

A:

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: (b) The bearing capacity of shallow foundation depends on several factors, list any five of them

A: Foundation is the substructure elements that are in direct contact with the ground and transmit,…

Q: For the following cases, determine the allowable gross vertical load-bearing capacity of the…

A:

Q: Problem #3 lo lag An eccentrically loaded continuous foundation is shown in (Eccentricity in one…

A:

Q: For the following cases, determine the allowable gross vertical load-bearing capacity of the…

A:

Q: A 5 * 7 ft footing is founded at a depth of 2 ft and supports a vertical load of 80 k and a moment…

A: Solution Given Data Foundation Dimension= 5*7 ft Vertical load= 80 k Moment load in the B Direction=…

Q: The longitudinal foundation is located on the ground as shown in Figure 1. The foundation is located…

A: we know that  Terzaghi eq for longitudinal or stip foundationbearing capacity…

Q: Ex.: Consider a strip foundation on a granular soil slope subjected to a seismic loading. Given: B =…

A: B = Width of strip foundation = 1.5 mγ = Unit weight of soil = 17.5 KN/m3ϕ = Angle of friction =…

Q: Design a square footing L x L m² at a depth 'D' to carry a vertical permanent load of Gk from the…

A: We need to design a square footing L×L which depth is D.

Q: 2. A medium dense sand is proposed to support a square foundation having a width and length of 5…

A:

Q: For the following cases, determine the allowable gross vertical load bearing capacity of the…

A: Hi there! since you have asked multiple questions, we will solve the first question for you. If you…

Q: 012 A strip foundation is founded at a depth of 1.4 m below ground level. Water table in the area is…

A:

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.