Design a square concrete column footing to support a 300-mm × 300-mm
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- Design a square footing to support a 450mm x 450mm column to carry an axial dead load of 550kN and axial live load of 620 kN. Use 20 mm main reinforcing bars with fy = 345 MPa. Assume fc= 28 MPa, unit weight of concrete = 23.5 kN/m 3 , unit weight of solid = 18.5 kN/m 3 , depth of footing = 1.6 m.Determine the maximum column load that can be applied on a 1.5 m 1.5 m square foundation, placed at a depth of 1.0 m within a soil, where = 19.0 kN/m3, c = 10 kN/m2 and =24. Allow a factor of safety of 3.0.Three concentrated loads Q l = 255 kips, Q 2 = 450 kips and <2 3 = 675 kips act in one vertical plane and they are placed in the order Q l -Q 2 ~Qy Their spacings are 13 ft-10 ft. Determine the vertical pressure at a depth of 5 ft along the center line of footings using Boussinesq's point load formula
- Design a square footing to support a 500 mm x 500 mm column to carry an axial dead load of 650 kN and an axial live load of 570 kN. Us 20 mm main reinforcing bars with Fy=345 MPa. Assume f'c=27.5 MPa, Unit weight of concrete (Yc)= 23.5 kN/m^3, Unit weight of solid (Ys)=18.2 kN/m^3, depth of footing=470 mm and Concrete cover (Cc)=75 mm. (Show diagram)A (1.2x4.2)m rectangular footing is placed at a depth of ( D f =1m) below the G.S. in clay soil with φu = 0° , γ = 18 kN/m3 , Cu = 22 kN/m2 . Find the allowable maximum load which can be applied under the following conditions: (a) W.T. at base of footing with γ sat = 20 kN/m3(b) W.T. at 0.5m below the surface and γ sat = 20 kN/m3(c) If the applied load is 400kN and the W.T. at the surface what will be the factor of safety of the footing against B.C. failure.Design an isolated square footing to support an interior column 50 cm× 50 cm in cross section and carries a dead load of 70 tons and a live load of 50 tons. Use fc=300 kg/ cm2, fy=4500 kg / cm2 , qall (gross) 2.0 kg / cm2, density of soil = 1.8 t /m3 , and Df = 1.30 m. *
- A 1.65m wide square footing is embedded 1.81m beneath the ground surface. The soil about the ground water table has a unit weight of 16.79 kN/m3, saturated unit weight of 19.86 kN/m3, and an unconfined compressive strength of 134 kPa (hint: half of this is the cohesion). The angle of internal friction is 18 degrees. The load acting on the column are given below. Assume a plan view where B is parallel to x-axis and L is parallel to the y-axis Vertical axial load = 256kNMy = 65kNmMx = 40kNmThe groundwater table is 0.65m above the base of the footing. The factor of safety is 3.0. The Meyerhof bearing capacity factors are given below: What is the net allowable load (kN) of the footing? 934.459 1582.939 None of the choices 857.933 1058.385 847.372 Please answer this asap. For upvote. Thank you very muchA 1.65m wide square footing is embedded 1.81m beneath the ground surface. The soil about the ground water table has a unit weight of 16.79 kN/m3, saturated unit weight of 19.86 kN/m3, and an unconfined compressive strength of 134 kPa (hint: half of this is the cohesion). The angle of internal friction is 18 degrees.The load acting on the column are given below. Assume a plan view where B is parallel to x-axis and L is parallel to the y-axis Vertical axial load = 256kN My = 65kNm Mx = 40kNm The groundwater table is 0.65m above the base of the footing. The factor of safety is 3.0. The Meyerhof bearing capacity factors are given below: What is the cohesion shape factor \lambda_{cs}λcs? 1.147 None of the choices 1.189 1.379 1.259 1.444 Please answer this asap. For upvote. Thank you very muchA 1.65m wide square footing is embedded 1.81m beneath the ground surface. The soil about the ground water table has a unit weight of 16.79 kN/m3, saturated unit weight of 19.86 kN/m3, and an unconfined compressive strength of 134 kPa (hint: half of this is the cohesion). The angle of internal friction is 18 degrees.The load acting on the column are given below. Assume a plan view where B is parallel to x-axis and L is parallel to the y-axis Vertical axial load = 256kN My = 65kNm Mx = 40kNm The groundwater table is 0.65m above the base of the footing. The factor of safety is 3.0. The Meyerhof bearing capacity factors are given below: What is the difference between the allowable bearing capacity and the maximum bearing pressure in kPa? 386.079 None of the choices 387.161 388.515 335.987 327.928 Please answer this asap. For upvote. Thank you very much
- A 1.65m wide square footing is embedded 1.81m beneath the ground surface. The soil about the ground water table has a unit weight of 16.79 kN/m3, saturated unit weight of 19.86 kN/m3, and an unconfined compressive strength of 134 kPa (hint: half of this is the cohesion). The angle of internal friction is 18 degrees.The load acting on the column are given below. Assume a plan view where B is parallel to x-axis and L is parallel to the y-axis Vertical axial load = 256kN My = 65kNm Mx = 40kNm The groundwater table is 0.65m above the base of the footing. The factor of safety is 3.0. The Meyerhof bearing capacity factors are given below: What is the gross allowable bearing capacity (kPa)? 620.356 570.263 622.791 562.204 None of the choices 621.438 Please answer this asap. For upvote. Thank you very muchA square footing 2m x 2m carries a uniformly distributed load of 314 kN/m². find theintensity of vertical pressure at a depth of 6 m below a point 0.5 m inside each of the twoadjacent side of footing.A 567 mm square pedestal is to be supported by a 3.44m by 5.21m footing. It is to carry an axial dead load of 610 kN and an axial live load of 745 kN and a lateral live load of 136kN acting parallel to long dimension of footing and 1.26 m from the top of the footing. The thickness of the footing is 525mm. Unit weight of concrete = 24 kN/m3; Unit weight of soil = 15.56 kN/m3. . Hint: (Moment from lateral force = Force x distance from the bottom of the footing). Calculate the required soil bearing capacity in kPa.