Homework Answers
Add Answer to:
Geotechnical square foundation design
1. A square footing is subjected to a vertical load of 50,000...
2. Design a square spread footing for the following conditions. Service dead load is 350 kips,...
2. Design a square spread footing for the following conditions. Service dead load is 350 kips, service live load is 275 kips. Soil density is 130 lb/ftº. Allowable soil pressure is 4500 psf. Column is 18 in. square. Geotechnical analyses have determined the width to be 13 ft. fe' = 3500 psi normal weight concrete, and fy= 60 ksi. The base of the footing is placed 5 ft below the ground surface. Note: you don't need to design the bar...
HW#10 Given the following column loading and footing information, determine the size of a mat foundation...
HW#10 Given the following column loading and footing information, determine the size of a mat foundation shown below: I 15 Column Information: Column A: Live load = 40 kips, Dead load = 50 kips Column B: Live load = 80 kips, Dead load = 100 kips. Distance between two columns: 15 ft. W soil = 120 psf 24" I CA C. Footing information: Distance from column A to edge of footing: 1 ft. Allowable soil bearing capacity = 3000 psf...
1. Design a wall footing for the following conditions. Service dead load is 6 kips/ft, service...
1. Design a wall footing for the following conditions. Service dead load is 6 kips/ft, service live load is 8 kips/ft. Soil unit weight is 120 lb/ft?. Allowable soil pressure, qa is 4000 psf. The base of the footing is placed 3 ft below the ground surface. Wall is 12 in, thick. Geotechnical analyses have determined the width to be 4 ft. fe' = 3500 psi normal weight concrete, and fy = 60 ksi. Note: you don't need to design...
A 100,000 lb load has to be carried by a concrete square foundation placed 3 ft...
A 100,000 lb load has to be carried by a concrete square foundation placed 3 ft below the surface of a saturated sandy soil having the following properties: γt = 120 pcf E = 2x105 psf φ' = 30deg ν = 0.25 c' = 0 What footing width will be required for a factor of safety with respect to the ultimate bearing capacity of 3.0, and for a maximum settlement of 1". The water table is at the ground surface.
2. A 5-ft square, 2-ft deep spread footing is subjected to a concentric vertical load of...
2. A 5-ft square, 2-ft deep spread footing is subjected to a concentric vertical load of 60 k and an overturning moment of 30 ft-k. The overturning moment acts parallel to one of the sides of the footing, the top of the footing is flush with the ground surface, and the ground water table is at a depth of 20 ft below the ground surface. Compute the minimum and maximum bearing pressures, d show the distribution of bearing pressure in...
CVE 313- 1- Design a square footing for the interior column shown in the figure. The column carries 2 k 't of uniform live load and 1.5 k/t of uniform dead load (including the self weiht of t...
CVE 313- 1- Design a square footing for the interior column shown in the figure. The column carries 2 k 't of uniform live load and 1.5 k/t of uniform dead load (including the self weiht of the structure), the base of the footing is 5 ft below grade, the soil weight is 100 lb/ft', and q," 5000 psf. and concrete unit weight is 150 lb/ (25 points) NOTE: Your design should only include the following (one-way shear, two-way shear,...
A 3 m square footing carries a vertical downward load of 900 kN. The embedment depth...
A 3 m square footing carries a vertical downward load of 900 kN. The embedment depth is 1 m. The soil beneath this footing has the following properties: y = 18 kN/m”, Ysat = 20 kN/mº, c' = 5 kPa, and o' = 36º. The groundwater table is at a depth of 2 m below the ground surface. Compute factor of safety against bearing capacity failure.
3. The bearing capacity of shallow foundations (i.e. footings) depends on the soil shear strength (ie....
3. The bearing capacity of shallow foundations (i.e. footings) depends on the soil shear strength (ie. ф and c). The ultimate bearing capacity (qultnei) of the soil is calculated using the following equation: Dr qult.net bearing capacity failure surface i. Frictional resistance along failure surface due to self-weight of soil below footing level footing level. Ny. No, and Ng are dimensionless bearing capacity factors that depend on the ii. Cohesive resistance along failure surface below footing level. iii. Frictional resistance...
Problem 1: (20 points) Given A square footing (5 ft by 5 ft) is subjected to...
Problem 1: (20 points) Given A square footing (5 ft by 5 ft) is subjected to an inclined load as shown in g. Required The factor of safety against bearing capacity failure. 30 a 40 kips 5 ft 5 ft 1.0 a 0.8 0.6 0.4 0.2 Cohesive Soil Cohesive Soil 0.8 D/B 1 Granular Soil 0.6 Granular Soil 0.4 De-o- 0.2 020 40 60 80 90 2 40 60 80 90 Inclination a of Load to Vertical inclination α. Of...
Q.2 (12 Marks) An owner of a ceramic tile factory contacted a Geotechnical consultant to design...
Q.2 (12 Marks) An owner of a ceramic tile factory contacted a Geotechnical consultant to design foundation of the tall chimney to take care of flue gases formed during the tiles production. As per design of the Geotechnical Engineer, the chimney should have a square footing of 3.0 m side constructed at a depth of 2.50 m in the sub soil. It was found from the results of the laboratory test on the sample of sub-soil that the shear strength...
2. Design a square spread footing for the following conditions. Service dead load is 350 kips, service live load is 275 kips. Soil density is 130 lb/ftº. Allowable soil pressure is 4500 psf. Column is 18 in. square. Geotechnical analyses have determined the width to be 13 ft. fe' = 3500 psi normal weight concrete, and fy= 60 ksi. The base of the footing is placed 5 ft below the ground surface. Note: you don't need to design the bar...
HW#10 Given the following column loading and footing information, determine the size of a mat foundation shown below: I 15 Column Information: Column A: Live load = 40 kips, Dead load = 50 kips Column B: Live load = 80 kips, Dead load = 100 kips. Distance between two columns: 15 ft. W soil = 120 psf 24" I CA C. Footing information: Distance from column A to edge of footing: 1 ft. Allowable soil bearing capacity = 3000 psf...
1. Design a wall footing for the following conditions. Service dead load is 6 kips/ft, service live load is 8 kips/ft. Soil unit weight is 120 lb/ft?. Allowable soil pressure, qa is 4000 psf. The base of the footing is placed 3 ft below the ground surface. Wall is 12 in, thick. Geotechnical analyses have determined the width to be 4 ft. fe' = 3500 psi normal weight concrete, and fy = 60 ksi. Note: you don't need to design...
2. A 5-ft square, 2-ft deep spread footing is subjected to a concentric vertical load of 60 k and an overturning moment of 30 ft-k. The overturning moment acts parallel to one of the sides of the footing, the top of the footing is flush with the ground surface, and the ground water table is at a depth of 20 ft below the ground surface. Compute the minimum and maximum bearing pressures, d show the distribution of bearing pressure in...
CVE 313- 1- Design a square footing for the interior column shown in the figure. The column carries 2 k 't of uniform live load and 1.5 k/t of uniform dead load (including the self weiht of the structure), the base of the footing is 5 ft below grade, the soil weight is 100 lb/ft', and q," 5000 psf. and concrete unit weight is 150 lb/ (25 points) NOTE: Your design should only include the following (one-way shear, two-way shear,...
A 3 m square footing carries a vertical downward load of 900 kN. The embedment depth is 1 m. The soil beneath this footing has the following properties: y = 18 kN/m”, Ysat = 20 kN/mº, c' = 5 kPa, and o' = 36º. The groundwater table is at a depth of 2 m below the ground surface. Compute factor of safety against bearing capacity failure.
3. The bearing capacity of shallow foundations (i.e. footings) depends on the soil shear strength (ie. ф and c). The ultimate bearing capacity (qultnei) of the soil is calculated using the following equation: Dr qult.net bearing capacity failure surface i. Frictional resistance along failure surface due to self-weight of soil below footing level footing level. Ny. No, and Ng are dimensionless bearing capacity factors that depend on the ii. Cohesive resistance along failure surface below footing level. iii. Frictional resistance...
Problem 1: (20 points) Given A square footing (5 ft by 5 ft) is subjected to an inclined load as shown in g. Required The factor of safety against bearing capacity failure. 30 a 40 kips 5 ft 5 ft 1.0 a 0.8 0.6 0.4 0.2 Cohesive Soil Cohesive Soil 0.8 D/B 1 Granular Soil 0.6 Granular Soil 0.4 De-o- 0.2 020 40 60 80 90 2 40 60 80 90 Inclination a of Load to Vertical inclination α. Of...
Q.2 (12 Marks) An owner of a ceramic tile factory contacted a Geotechnical consultant to design foundation of the tall chimney to take care of flue gases formed during the tiles production. As per design of the Geotechnical Engineer, the chimney should have a square footing of 3.0 m side constructed at a depth of 2.50 m in the sub soil. It was found from the results of the laboratory test on the sample of sub-soil that the shear strength...
Most questions answered within 3 hours.
-
(63
#14)
which of the following statments best describes how chamging
the concentration of the substances...
asked 2 hours ago -
In the following reaction, which element is undergoing
oxidation: Na2SO3 + N2O --> N2 + Na2SO4...
asked 3 hours ago -
Which of the following pairs of ions have the same electron
configuration?
I: Br− and Se2−...
asked 6 hours ago -
The Foremost Composite Materials Company is planning a two-day
sales conference for October 19-20. The conference...
asked 6 hours ago -
3) Illustrate the observed pattern of relatedness of organisms
versus adaptations to specific conditions. This means...
asked 6 hours ago -
In winter a lake has a 0.35 m thick ice layer over 1.10 m of
water....
asked 7 hours ago -
Assuming the following has been encrypted with a Vigenere cipher
below, use the method(s) and assumptions...
asked 8 hours ago -
How would I use switch statements to write a program that will
take an input of...
asked 8 hours ago -
Imagine a reaction in which methane gas combusts at a constant
pressure of 1 atm and...
asked 8 hours ago -
Two parallel wires (each 12 m in length) are separated by a
distance of 0.065 m...
asked 8 hours ago -
Suppose there were three masses at the corner of uniform
equilateral triangle. The masses are m1...
asked 8 hours ago -
Situation: A building that is 618 m above the ground floor. How
many times would a...
asked 8 hours ago