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Questions and Answers
What is the maximum load that can be supported by a column with a cross-sectional area of 144 ft² if the compressive stress is limited to 200 psf?
What is the maximum load that can be supported by a column with a cross-sectional area of 144 ft² if the compressive stress is limited to 200 psf?
- 10,000 pounds
- 28,800 pounds (correct)
- 20,000 pounds
- 36,000 pounds
If the cross-sectional area of a column is doubled, while maintaining the same maximum compressive stress limit, what will be the new maximum load?
If the cross-sectional area of a column is doubled, while maintaining the same maximum compressive stress limit, what will be the new maximum load?
- 58,000 pounds
- 40,000 pounds
- 28,800 pounds
- 57,600 pounds (correct)
What would be the effect on the maximum load capacity if the allowable compressive stress is reduced to 100 psf with the original area of 144 ft²?
What would be the effect on the maximum load capacity if the allowable compressive stress is reduced to 100 psf with the original area of 144 ft²?
- 10,000 pounds
- 14,400 pounds (correct)
- 28,800 pounds
- 15,000 pounds
If the area of a column is reduced to 72 ft² while keeping the compressive stress at 200 psf, what would be the resulting maximum load capacity?
If the area of a column is reduced to 72 ft² while keeping the compressive stress at 200 psf, what would be the resulting maximum load capacity?
What is a significant factor that would decrease the maximum load on a column besides the reduction of cross-sectional area?
What is a significant factor that would decrease the maximum load on a column besides the reduction of cross-sectional area?
Flashcards
Column Load Capacity
Column Load Capacity
The maximum force that a column can withstand before it starts to deform or fail.
Stress
Stress
The amount of force applied over a specific area.
Cross-sectional Area
Cross-sectional Area
The area of the cross-section of an object, usually calculated by multiplying width and height.
Compressive Stress Limit
Compressive Stress Limit
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Column Load Calculation
Column Load Calculation
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Study Notes
Maximum Load Calculation
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The maximum load a column can support is determined by the allowable compressive stress and the cross-sectional area of the column.
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Compressive stress is the force applied perpendicular to a surface area, divided by the area.
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Stress (σ) = Force (F) / Area (A)
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In this case, the cross-sectional area (A) is given as 144 ft².
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The maximum compressive stress allowed is 200 psf (pounds per square foot).
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To find the maximum load (F), rearrange the formula:
- F = σ × A
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Substitute the given values:
- F = 200 psf × 144 ft²
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Calculate the maximum load:
- F = 28,800 lbs
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Therefore, the maximum load that can be applied to the column is 28,800 pounds.
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