Determine the width B of square foundation within sandy clay
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Determine the width B of square foundation within sandy clay
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- 9.A rectangular footing supports a square column concentrically. Given: Footing Dimensions: 2.5m wide x 4.0m long and 0.80m depth Column Dimensions: 0.45m x 0.45m Concrete, fc’ = 28MPa Steel, fy = 415MPa Concrete cover to the centroid of steel reinforcements = 100mm Unit weight of concrete = 24kN/m3 Unit weight of soil = 17kN/m3 a. Determine the concentrated load that the footing can carry based on beam action. b. Calculate the concentrated load that the footing can carry based on two-way action. c. If the allowable soil pressure at service loads is 210kPa, what column axial load (unfactored) in kN can the footing carry if depth of earth fill is 2m above the footing?Determine the shear strength of soil?Uplift pressure under the -foundation:a-b-c Increase foundation stability. O Increase soil compaction. O Increase foundation deflection. O نقطة واحدة
- Problem 2. A rectangular footing supports a square column concentrically. Given: Footing Dimensions: 3.0m wide x 4.5m long and 0.75m depth Column Dimensions: 0.40m x 0.40m Concrete, fc’ = 21MPa Steel, fy = 275MPa Concrete cover to the centroid of steel reinforcements = 110mm Unit weight of concrete = 23.5kN/m3 Unit weight of soil = 16kN/m3 Determine the concentrated load that the footing can carry based on beam action. Calculate the concentrated load that the footing can carry based on two-way action. If the allowable soil pressure at service loads is 200kPa, what column axial load (unfactored) in kN can the footing carry if depth of earth fill is 2.0m above the footing?Describe about the Settlement Due to Primary Compression of Clay.A 2.5m x 3.0m rectangular spread footing is founded in Dense Sand having a friction angle of 35 degrees. The depth of the foundation is at 2.0m below the ground surface. The groundwater table is located at 3.0 m below the ground surface. The moist and saturated Why the allowable bearing capacity of soil is greatly affected when the ground water table reaches at the ground surface.unit weights are 17 kN/m3 and 18 kN/m3, respectively. What is the net allowable bearing capacity of the footing using a Factor of Safety (FS) of 2.5?
- (5) There is a strip footing with a width of 2 m and a buried depth of 1.5 m. The foundation soil is silt with a unit weight of 19 kN/m', a saturated unit weight of 20 kN/m², cohesion of 10 kPa, and an internal friction angle of 20°. The groundwater level is I m below the ground surface. Please determine the ultimate bearing capacity of the foundation. (Second Question: Grade A square foundation has to be constructed on soil with OCR-1. The unit weight of soil is 16.5 kN/m² and the saturated unit weight is 175 kN/m². The drained angle of friction is 28º. Depth of foundation is 150 cm. The groundwater table is located 100 cm below the ground surface. The gross allowable load with a factor of safety 4 is 1200 KN. Determine the size of foundation?Q1/ Define the Foundation and List the main Types of the foundation?
- 1) A footing whose one side spans 4.2m carries a 520 kN dead load and 640kN live load from a reinforced concrete column. The column measures 500mm parallel to the long side of the foundation, and 800mm on the other side. Assume effective soil bearing capacity of 80kPa, concrete compressive strength of 21 MPa, and steel yield strength of 280 MPa. Determine the following: • Dimensions of the footing (use 100mm increments) • The thickness of the footing (use 10mm increments) • Number of 20mm reinforcements along each dimensionThe width and depth of a footing are 2 and 1.5 m respectively. The water table at the site is at a depth of 3 m below the ground level. The water table correction factor for the calculation of the bearing capacity of soil isQ1/ What is the function of foundation? Q2/ List five kinds of shallow foundation?