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Questions and Answers
What is the maximum allowable compressive load on a column with a cross-sectional area of 144 ft² and a compressive stress limit of 200 psf?
What is the maximum allowable compressive load on a column with a cross-sectional area of 144 ft² and a compressive stress limit of 200 psf?
- 36 kips
- 30 kips
- 24 kips
- 28.8 kips (correct)
If the compressive stress on the column were to be increased to 250 psf while maintaining the same cross-sectional area, what would the maximum load be?
If the compressive stress on the column were to be increased to 250 psf while maintaining the same cross-sectional area, what would the maximum load be?
- 36 kips (correct)
- 40 kips
- 30 kips
- 28.8 kips
A column has a cross-sectional area that is half of 144 ft², maintaining the same compressive stress limit. What is the new maximum load?
A column has a cross-sectional area that is half of 144 ft², maintaining the same compressive stress limit. What is the new maximum load?
- 14.4 kips (correct)
- 18.4 kips
- 28.8 kips
- 72 kips
What would be the effect on the maximum load if the compressive stress limit is decreased to 150 psf while keeping the original cross-sectional area?
What would be the effect on the maximum load if the compressive stress limit is decreased to 150 psf while keeping the original cross-sectional area?
If two identical columns, each with a maximum load of 28.8 kips, are connected in parallel, what is their combined maximum load?
If two identical columns, each with a maximum load of 28.8 kips, are connected in parallel, what is their combined maximum load?
Flashcards
Load Capacity
Load Capacity
The maximum force that can be safely applied to a structural member, such as a column, before it starts deforming permanently or failing.
Stress
Stress
The amount of force applied per unit area of a material.
Compressive Stress Limit
Compressive Stress Limit
The maximum allowable stress a material can withstand before failing.
Cross-Sectional Area
Cross-Sectional Area
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Load Capacity Formula
Load Capacity Formula
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Study Notes
Calculating Maximum Load on a Column
- Given cross-sectional area (A) = 144 ft²
- Given maximum compressive stress (σ) = 200 psf
- Formula for stress: Stress = Force/Area (σ = F/A)
- To find the maximum force (F), rearrange the formula: F = σ * A
- Substitute the given values: F = 200 psf * 144 ft²
- Calculate the force: F = 28,800 lb
- Convert the force to kips: 28,800 lb = 28.8 kips
- Therefore, the maximum load that can be on the column is 28.8 kips.
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