A 5-ft wide, 8-ft long footing is embedded 3-ft in the ground. It supports a downward load of 200 kips and a shear load of 25 kips. The shear load acts parallel to the 8-ft dimension. The underlying soilds have an effective cohesion c’=220 lb/ft2 , friction angle of 28° and unit weight of 123 lb/ft3 . Using a total stress analysis, compute the factor of safety against a bearing capacity failure.

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A: Step 1

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

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Q: Problem attached

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A:

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A: Let us analyse the question in step 2.

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

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A: Consider the free body diagram as;

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A: Solution:- The given diagram is shown below,

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Q: en the two layers of the bars.

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

Q: Problem3. A 0.6mm square column is supported by a 1.5m wide rectangular footing. The column…

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

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

A:

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A:

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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: Calculate the number of bars required in one direction.

A:

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A: b = 1.5 mQu = 728 kN/m2 e = 0.18 m

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Q: Calculate the number of bars required in one direction.

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: B = 1.5 m e = 0.18 mQu = 728 kN/m2

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.