A square footing located at a depth of 1.3 m below the ground surface has to carry a safe load of 800 kN . Find the size of the footing if the desired factor of safety is 3. The soil has the following properties :

Q: A rectangular footing, with a plan area of 1-4mx2·0m is to be placed 2m below the ground surface.…

A: Given Information:

Q: 1) A footing whose one side spans 4.2m carries a 520 kN dead load and 640kN live load from a…

A: Answer  (1) Calculation of Dimension of the footing We know that Area of footing is given by A = Pqe…

Q: a square footing is to be constructed on a uniform thick deposit of clay with a unconfined…

A:

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

A:

Q: For a rectangular footing 4 ft x 8 ft, 100 kips of load is being applied. Compute stress increase 10…

A: Rectangular footing size = 4 ft x 8 ft Load applied= 100 Kips We have to find out the stress…

Q: Design an isolated rectangular footing: P(dead load) = 225 kN P(live load) = 130 kN Qa = 180 kPa Df…

A: Given Data:D.L =…

Q: 9. What does the soil stress distribution beneath the footing depend on? Depends only on the…

A: Stress distribution beneath the footing depends on the footing is flexible or rigid footing. Thus it…

Q: A 4ft by 4ft spread footing is proposed where the bottom of footing is set 2ft below grade. The…

A: Question is based on the footing which is proposed to design a which bottom of which is set at some…

Q: A combined footing is proposed to support two columns, C1 and C2, with loads equal to 2000 kN and…

A: (i) Soil Bearing Capacity:The bearing capacity of the soil can be calculated using the following…

Q: A continuous footing with a B = 7.5ft is constructed with a Df of 3ft in a soil with the following…

A: Consider the given data Consider the Tarzaghi Bearing capacity table

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.