9.5 The allowable soil bearing pressure at a building site is 6,500 psf. Determine the plan dimensions of a pad footing for a column that supports a total dead plus live load of 400 kips. Note that this column is located within 3 ft from an underground tunnel that has not been designed to support any additional building load. Therefore, no part of the footing should be located above the culvert.

9.5 The allowable soil bearing pressure at a building site is 6,500 psf. Determine the plan dimensions of a pad footing for a column that supports a total dead plus live load of 400 kips. Note that this column is located within 3 ft from an underground tunnel that has not been designed to support any additional building load. Therefore, no part of the footing should be located above the culvert.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter16: Soil Bearing Capacity For Shallow Foundations

Section: Chapter Questions

Problem 16.13P: A square footing (B B) must carry a gross allowable load of 1160 kN. The base of the footing is to...

See similar textbooks

Similar questions

For the following footing, determine the allowable load (Qu) being Fs=1.5
A 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.
Calculate the short- and long-term allowable bearing capacity of soil under the retaining wall.(ɣ concrete = 24 kN/m3 )
A 5.0 ft wide square footing is placed at 3.0 ft depth within the ground where c = 200 lb/ft2, = 25, and = 115.0 lb/ft3. Determine the ultimate bearing capacity of the footing using Terzaghis bearing capacity equation and the bearing capacity factors from Table 6.1. What is the maximum column load that can be allowed with a factor of safety of 3.0?
A square footing (B B) must carry a gross allowable load of 1160 kN. The base of the footing is to be located at a depth of 2 m below the ground surface. If the required factor of safety is 4.5, determine the size of the footing. Use Terzaghis bearing capacity factors and assume general shear failure of soil. Given: = 17 kN/m3, c = 48 kN/m2, =31.
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
If the soil exerts a trapezoidal distributed load on the bottom of the footing, determine the intensities w1 and w2 of this distribution needed to support the column loads 60kN, 80 kN and 50 kN. Please note there is a column moment of 10 kNm in counter clockwise direction also and this must be considered in the computation.
Two footings of sizes 13 x 13 ft and 10 x 10 ft are placed 30 ft center to center apart at the same level and carry concentrated loads of 337 and 281 kips respectively. Compute the vertical pressure at depth 13 ft below point C midway between the centers of the footing
Two footings of sizes 13 x 13 ft and 10 x 10 ft are placed 30 ft center to center apart at the same level and carry concentrated loads of 337 and 281 kips respectively. Compute the vertical pressure at depth 13 ft below point C midway between the centers of the footings.
A long masonry wall footing carries a uniformly distributed load of 200 kN/m2. If the width of the footing is 4 m, determine the vertical pressures at a depth of 3 m below the (i) center, and (ii) edge of the footing
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 200 mm wide concrete block wall carries a vertical dead load of 120 kN/m and a verticallive load of 88 kN/m. The expected sustained load for serviceability is 160 kN/m. The wallis to be supported on a continuous spread footing that is to be founded at a depth of at least500 mm below the ground surface. The geotechnical design for the project was done usingASD and determined the allowable bearing pressure based on bearing capacity as 310 kPa andthe allowable bearing pressure to meet settlement requirements as 155 kPa. The groundwatertable is at a depth of 10 m. Develop a structural design for this footing using f′ c = 15 MPa and grade 280 steel, fy = 280 MPa.