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Select the CORRECT name of the column among the given options that should have the ratio of effective length to its least lateral dimension more than 12.
- a)Long column
- b)Pedestal
- c)Short column
- d)Plastic column
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Select the CORRECT name of the column among the given options that sho...
Understanding Column Types
In structural engineering, columns are vital components that bear loads. Their classification is based on their slenderness ratio, which is the ratio of effective length to the least lateral dimension.
Slenderness Ratio Explained
The slenderness ratio is crucial for determining the buckling behavior of columns.
- Effective Length: The distance between points of zero moment.
- Least Lateral Dimension: The smallest cross-sectional dimension of the column.
Long Columns vs. Short Columns
- Long Column: Typically has a slenderness ratio greater than 12. This means it is more susceptible to buckling under axial loads rather than crushing. Long columns are designed to resist buckling by considering their slenderness ratio in calculations.
- Short Column: Has a slenderness ratio less than 12. These columns primarily fail due to material crushing rather than buckling.
Other Column Types
- Pedestal: Generally short and stout, often used to support other structural elements. It does not have a slenderness ratio exceeding 12.
- Plastic Column: Refers to columns designed to undergo plastic deformation before failure. The slenderness ratio may vary but is not specifically defined as always being more than 12.
Conclusion
Therefore, the correct answer is option 'A' (Long column), as it is the only type among the options that consistently requires a slenderness ratio greater than 12 to ensure stability against buckling under loads. Understanding these classifications is essential for proper structural design and safety.
In structural engineering, columns are vital components that bear loads. Their classification is based on their slenderness ratio, which is the ratio of effective length to the least lateral dimension.
Slenderness Ratio Explained
The slenderness ratio is crucial for determining the buckling behavior of columns.
- Effective Length: The distance between points of zero moment.
- Least Lateral Dimension: The smallest cross-sectional dimension of the column.
Long Columns vs. Short Columns
- Long Column: Typically has a slenderness ratio greater than 12. This means it is more susceptible to buckling under axial loads rather than crushing. Long columns are designed to resist buckling by considering their slenderness ratio in calculations.
- Short Column: Has a slenderness ratio less than 12. These columns primarily fail due to material crushing rather than buckling.
Other Column Types
- Pedestal: Generally short and stout, often used to support other structural elements. It does not have a slenderness ratio exceeding 12.
- Plastic Column: Refers to columns designed to undergo plastic deformation before failure. The slenderness ratio may vary but is not specifically defined as always being more than 12.
Conclusion
Therefore, the correct answer is option 'A' (Long column), as it is the only type among the options that consistently requires a slenderness ratio greater than 12 to ensure stability against buckling under loads. Understanding these classifications is essential for proper structural design and safety.
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Select the CORRECT name of the column among the given options that sho...
Slender column: Cross sections in which the elements buckle locally even before the attainment of yield stress are called slender sections.
The column is classified based on its slenderness ratio.
Considering the x-axis is as major axis because Ixx is greater and the y-axis as the minor axis
a > b ⇒ Ixx > Iyy
Slenderness ratio
So,
The column is classified based on its slenderness ratio.
Considering the x-axis is as major axis because Ixx is greater and the y-axis as the minor axis
a > b ⇒ Ixx > Iyy
Slenderness ratio
So,
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Select the CORRECT name of the column among the given options that should have the ratio of effective length to its least lateral dimension more than 12.a)Long columnb)Pedestalc)Short columnd)Plastic columnCorrect answer is option 'A'. Can you explain this answer?
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