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A 3 m square footing carries a vertical downward load of 900 kN. The embedment depth...
After the footing in Problem 7.9 was built, the groundwater table rose to a depth of...
After the footing in Problem 7.9 was built, the groundwater table rose to a depth of 0.5 m below the ground surface. Compute the new factor of safety against a bearing capacity failure. Com- pare it with the original design value of 2 and explain why it is different. (use Terzaghi’s formula to solve) 7.9) A bearing wall carries a total unfactored load 220 kN/m. It is to be supported on a 400 mm deep continuous footing. The underlying soils...
5. A square footing is 4 mx 4 m in plan. Determine the gross allowable load,...
5. A square footing is 4 mx 4 m in plan. Determine the gross allowable load, Qall, that the square footing can carry. Use the general bearing capacity equation and a factor of safety F.-4). Given unit weight of soil y = 19 kN/m, c' = 0 kN/m, 6 - 35°, D-2 m. The load is applied vertically and the groundwater is very deep. Qall = ? B = 4 m
Problem 5-Bearing Capacity of Shallow Foundation (20 pts) For a square footing foundation, the following are...
Problem 5-Bearing Capacity of Shallow Foundation (20 pts) For a square footing foundation, the following are given: B 3.0 m (width), D 1.2 m (depth). Y=20 kN/m3, = 32°, c' = 50 kPa, Use Terzaghi Equation and a factor of safety of 2.5 to determine the allowable bearing capacity and the maximum column load to cause bearing capacity failure. Assume that general shear failure occurs in soil. When Oar C S
A 16-in square concrete column carries vertical unfactored load of 350 k factored load. It is...
A 16-in square concrete column carries vertical unfactored load of 350 k factored load. It is to be supported on a 8'square footing with fc=3000 lb/in2 and fy-60 k/in2. The groundwater table is at a great depth. Because of frost heave considerations, the bottom of this footing must be at least 30 inches below the ground surface. Determine the required footing width thickness, size the flexural reinforcement, and show your design in a sketch ASD standards: allowable bearing capacity 6,500...
A square footing, 2 m by 2 m is to be constructed 1.22 m below the...
A square footing, 2 m by 2 m is to be constructed 1.22 m below the ground surface, as shown in the figure below. The groundwater table is located 1.82 m below the ground surface. The subsoil consists of a uniform, medium dense, cohesion less soil with the following properties: Unit weight of soil 18.53KN/m; Angle of internal friction 32 Cohesion Determine the foundation soil's allowable bearing capacity, if a factor of safety of 3.0 is used 1.22 m 1.82...
2 A 200 kN column load is to be supported on a 3 m square, 1...
2 A 200 kN column load is to be supported on a 3 m square, 1 m deep spread footing underlain by young, normally consolidated sandy soils. The results of a representative CPT sounding at this site are as follow: Depth (m) qc (kg/cm²) 0.0-4.0 30 4.0-7.0 51 7.0-12.0 65 12.0-16.0 16.0-20.0 59 110 The groundwater table is at a depth of 10 m; the unit weight of the soil is 16 kN /mº above the groundwater table and 18...
Geotechnical square foundation design 1. A square footing is subjected to a vertical load of 50,000...
Geotechnical square foundation design
1. A square footing is subjected to a vertical load of 50,000 lbs and a moment of 25,000 lb-ft. The depth of the foundation is 4 ft. The water table is at the base of the footing. The soil above the base of the footing has y-100 pcf and a friction angle of 30°. The soil below the base of the footing has a Ysat 120 pcf, a friction angle of 20° and c-100 psf. Find...
10. A proposed attice building will include an 8.1 bin square, 3-ft deep spread ating that...
10. A proposed attice building will include an 8.1 bin square, 3-ft deep spread ating that will support a vertical downward service load of 160 k The soil below this footing is an overconsolidated clay (OC case with the following engineering properties Cell + ) = 0 10. C I + )-0022, and y = 113 ih This soil strata extends to a great depth and the groundwater table is at a depth of 50 It below the ground surface...
Q.2 A strip footing of size of 2 m in width is designed to be founded...
Q.2 A strip footing of size of 2 m in width is designed to be founded at 1 m below ground level. The footing is subject to a vertical and a horizontal load as shown. The ground consists of a uniform deposit of dense soil which has a bulk unit weight of 18 kN/m when above water table and 20 kN/m² when it is saturated. Determine the allowable ultimate bearing capacity and hence the Factor of safety using the general...
1. A 3m x 3m square footing is constructed at a depth of 2m in a...
1. A 3m x 3m square footing is constructed at a depth of 2m in a 200m deep clay layer with following soil properties: Ysat 16.5kN/m3, Normally Consolidated Clay, eo- 0.65, Cc 0.25, us-0.5 and Es 6.0 MN/m2. If there is a 1,000kN structural load on the footing, calculate the consolidation settlement of the footing
5. A square footing is 4 mx 4 m in plan. Determine the gross allowable load, Qall, that the square footing can carry. Use the general bearing capacity equation and a factor of safety F.-4). Given unit weight of soil y = 19 kN/m, c' = 0 kN/m, 6 - 35°, D-2 m. The load is applied vertically and the groundwater is very deep. Qall = ? B = 4 m
Problem 5-Bearing Capacity of Shallow Foundation (20 pts) For a square footing foundation, the following are given: B 3.0 m (width), D 1.2 m (depth). Y=20 kN/m3, = 32°, c' = 50 kPa, Use Terzaghi Equation and a factor of safety of 2.5 to determine the allowable bearing capacity and the maximum column load to cause bearing capacity failure. Assume that general shear failure occurs in soil. When Oar C S
A square footing, 2 m by 2 m is to be constructed 1.22 m below the ground surface, as shown in the figure below. The groundwater table is located 1.82 m below the ground surface. The subsoil consists of a uniform, medium dense, cohesion less soil with the following properties: Unit weight of soil 18.53KN/m; Angle of internal friction 32 Cohesion Determine the foundation soil's allowable bearing capacity, if a factor of safety of 3.0 is used 1.22 m 1.82...
2 A 200 kN column load is to be supported on a 3 m square, 1 m deep spread footing underlain by young, normally consolidated sandy soils. The results of a representative CPT sounding at this site are as follow: Depth (m) qc (kg/cm²) 0.0-4.0 30 4.0-7.0 51 7.0-12.0 65 12.0-16.0 16.0-20.0 59 110 The groundwater table is at a depth of 10 m; the unit weight of the soil is 16 kN /mº above the groundwater table and 18...
Geotechnical square foundation design
1. A square footing is subjected to a vertical load of 50,000 lbs and a moment of 25,000 lb-ft. The depth of the foundation is 4 ft. The water table is at the base of the footing. The soil above the base of the footing has y-100 pcf and a friction angle of 30°. The soil below the base of the footing has a Ysat 120 pcf, a friction angle of 20° and c-100 psf. Find...
10. A proposed attice building will include an 8.1 bin square, 3-ft deep spread ating that will support a vertical downward service load of 160 k The soil below this footing is an overconsolidated clay (OC case with the following engineering properties Cell + ) = 0 10. C I + )-0022, and y = 113 ih This soil strata extends to a great depth and the groundwater table is at a depth of 50 It below the ground surface...
Q.2 A strip footing of size of 2 m in width is designed to be founded at 1 m below ground level. The footing is subject to a vertical and a horizontal load as shown. The ground consists of a uniform deposit of dense soil which has a bulk unit weight of 18 kN/m when above water table and 20 kN/m² when it is saturated. Determine the allowable ultimate bearing capacity and hence the Factor of safety using the general...
1. A 3m x 3m square footing is constructed at a depth of 2m in a 200m deep clay layer with following soil properties: Ysat 16.5kN/m3, Normally Consolidated Clay, eo- 0.65, Cc 0.25, us-0.5 and Es 6.0 MN/m2. If there is a 1,000kN structural load on the footing, calculate the consolidation settlement of the footing
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