Soil Bearing Capacity and Footing Design Quiz

A column carries a load of 44 kips and is supported on a 1-foot thick spread footing, which rests on clay. What is the task required for this column?

• Calculate the total load on the column.

• Size the smallest square footing to support the load.

• Determine the height of the column.

• Find the allowable soil bearing pressure.

What is the formula for net allowable soil bearing pressure in spread footing design?

• q_{net} = q_{allowable} - P_{footing}

• q_{net} = P x A

• q_{net} = q_{allowable} + P_{footing}

1. Determine if the given footing size of 6’-0” X 6’-0” will be sufficient to carry the given loads. The structure is a one-story slab on grade.

Dead Load= 55,000 lbs

Live Load =68,000 lbs

Column W16X57

Column Height 12 feet

Assume thickness of footing 18”

Allowable Soil Bearing

Capacity = 4,000 psf

Include both the weight of the column and the weight of the footing in your calculations.

Note: Concrete weighs 150 lb/ft3

What is the allowable soil bearing capacity given in the document?

• 3,000 psf

• 4,000 psf

• 5,000 psf

• 6,000 psf

What is the total load on the footing if the dead load is 55,000 lbs and the live load is 68,000 lbs?

• 123,000 lbs

• 113,000 lbs

• 133,000 lbs

• 143,000 lbs

1. Determine if the given footing size of 6’-0” X 6’-0” will be sufficient to carry the given loads. The structure is a one-story slab on grade.

Dead Load= 55,000 lbs

Live Load =68,000 lbs

Column W16X57

Column Height 12 feet

Assume thickness of footing 18”

Allowable Soil Bearing

Capacity = 4,000 psf

Include both the weight of the column and the weight of the footing in your calculations.

Note: Concrete weighs 150 lb/ft3

What is the column height mentioned in the document?

• 10 feet

• 12 feet

• 14 feet

• 16 feet

1. Determine if the given footing size of 6’-0” X 6’-0” will be sufficient to carry the given loads. The structure is a one-story slab on grade.

Dead Load= 55,000 lbs

Live Load =68,000 lbs

Column W16X57

Column Height 12 feet

Assume thickness of footing 18”

Allowable Soil Bearing

Capacity = 4,000 psf

Include both the weight of the column and the weight of the footing in your calculations.

Note: Concrete weighs 150 lb/ft3

What is the assumed thickness of the footing?

• 12 inches

• 15 inches

• 18 inches

• 20 inches

What is the formula for calculating the soil bearing pressure due to footing weight?

• P_{footing} = q_{allowable} - q_{net}

• P_{footing} = P x A

1. Determine if the given footing size of 6’-0” X 6’-0” will be sufficient to carry the given loads. The structure is a one-story slab on grade.

Dead Load= 55,000 lbs

Live Load =68,000 lbs

Column W16X57

Column Height 12 feet

Assume thickness of footing 18”

Allowable Soil Bearing

Capacity = 4,000 psf

Include both the weight of the column and the weight of the footing in your calculations.

Note: Concrete weighs 150 lb/ft3

What is the column size given in the document?

• W12X50

• W14X53

• W16X57

• W18X60

What is the purpose of including both the weight of the column and the weight of the footing in calculations?

• To determine the height of the column.

• To calculate the total load on the footing.

• To find the thickness of the footing.

• To measure the area of the footing.

What is the task required for a footing size of 6'-0" X 6'-0"?

• Determine if it will be sufficient to carry the given loads.

• Calculate the height of the column.

• Find the thickness of the footing.

• Measure the area of the footing.