A strip footing 2m wide carries a load intensity of 400 kN/m2at a depth of 1.2 m in sand. The saturated unit weight of sand is 19.5 kN/m3 and unit weight above water table is 16.8 kN/m3. The shear strength parameters are C=0 and Ф = 350 . Determine the factor of safety with respect to shear failure for the following cases of location of water table :(a) Water table is 4m below G.L(b) Water table is 1.2 m below G.L(c) Water table is 2.5 m below G.L(d) Water table is 0.5 m below G.L(e) Water table is G.L itself

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…

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

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A: Terzaghi's Bearing Capacity Theory : According to Terzaghi's Bearing Capacity Theory, a foundation…

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Q: Foundation 3 m x 4.5 m 4.5 m Load 2025 kN -1.5 m- Determine the -3 m- increasing of vertical stress…

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Q: . If the footing shown below is not to settle more than 1 in., what is the maximum load it can…

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Q: Two parallel strip footings 3m wide and 5m apart(measured from centre to centre), which transmit a…

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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.