Two columns are D= 8,954 mm away from each other measured center to center. The loads supported by the columns are listed below. Effective soil pressure is 198 kPa. D Left Column (494 mm X 623 mm) DL=603 kN LL-662 kN Right Column (474 mm X 622 mm) (474 mm side is parallel to the long side of the footing) DL=739 kN LL=657 kN If the distance of the left column to the left edge of the footing is A=723 mm Calculate the longer dimension of the footing in mm in exact values.
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- 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 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 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 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 much
- 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 3.19m x 5.35m footing has a 407 mm column at center with the loads P = 875 kN and My=120.4 kN-m Calculate the pressure at point 2 of the footing in kPa ANSWER IS 64.5392A 1.80m x 1.20m x 0.4m footing with a column at the center is loaded with a column at the center is loaded with a column load of 750 kN and a moment of 290 kN-m acting about the transverse axis of the footing base. The base of the footing is 1.25m below the ground. Use the unit weight of 24 kN/m^3 for concrete and 18 kN/m^3 for the soil above the footing.Determine the equivalent eccentricity of the load,mm?Maximum net soil pressure under the footing, kPa?Required minimum additional axial load so that the whole footing base is under pressure,kN?
- A rectangular footing 1.62 x 2.18 in plan. The soil supporting the foundation has a friction angle of 28 degrees and c = 19.03 kPa. The unit weight of soil us 16.10 kN/m3 and the saturated unit weight is 21.94 kN/m3. The bottom of the foundation is at 1.23 meter below the ground and the GWT to be 0.59 meter below the bottom of the footing. Assume the the load is inclined at an angle of 21.04 degrees from the vertical. Compute for the net bearing capacity if the factor of safety is 2.62. Use Meyerhof General Bearing CapacitySituation 7 - A long footing 2 m wide is buried at a depth of 1 m. Water table is located 0.40 m from the ground surface. Soil above the water table has a unit weight of 19.65 kN/m3 and the saturated soil has a unit weight of 21.70 kN/m3. The soil is cohesionless and has an angle of shearing resistance of 20°. Nc = 17.69, Nq = 7.44, and Nγ = 3.64. (a.) Determine the safe gross load in kN per meter width that the footing can carry assuming a factor of safety of 1.75. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places. (b.) Determine the ultimate bearing capacity of the soil in kPa. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places. (c.) Determine the overburden pressure on the soil in kPa. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal…A 460 mm reinforced concrete interior spiral column carries service loads of 1025 kN dead load and 715 kN live load (Figure 3). The column rest on a square spread footing 2.75 m x 2.75 m in dimension. The net ultimate soil pressure at the base of the footing is 314 kPa, f’c =21 MPa, fy = 345 MPa, clear cover is 75 mm and 25 mm-diameter bars, the allowable soil pressure is 250 kPa? Unit weight of soil is 17kN/m3 ; unit weight of concrete is 23.5 kN/m3. The underside of footing is 1.50m below the natural grade line
- 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 formulaA 460 mm x 510 mm rectangular concrete interior column is reinforced with ten - 19-mm-diameterbars. The column rest centrally on a 2 m x 3 m x 710 mm rectangular spread footing as shown inFigure 1. The design properties used are, for column: f’c = 21 MPa, fy = 276 MPa; for footing:f’c = 35 MPa, fy = 345 MPa, ys = 20.425 kN/m3, yc = 23.5 kN/m3, 75 mm clear cover, 25-mm-diameter and allowable soil pressure of 200 kPa. find the following: 1. What is the value of the column capacity Pu in kN? 2. What is the effective depth of footing as required by one-way shear or beam shear in theshort direction in mm? 3. What is the effective depth of footing as required by one-way shear or beam shear in thelong direction in mm? 4. What is the governing effective depth of footing as required by two-way shear or punchingshear mm? 5. How many rebars are needed in the long direction of the footing as required by bendingmoment based on the given “average effective depth”. Round off your answer to…Square ftg. 1.5m carries a concentric column load of 223kN. Unit weight of soil is 18.9kN/m^3 and that concrete is 23.6kN/m^3. The cohesive soil has unconfined compressive strength of 144kPa. Footing is to be constructed 1.2m below GS having 30cm thickness. Column is 45cmx45cm in cross section. Using Terzaghi's formula with Nc=5.14, Nq=1.0, Ny=0 Determine the overburden pressure at base of the footing