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A column is a compression member, the effective length of which exceeds three times its least lateral dimension. This is applicable to-
  • a)
    Rectangular and circular sections
  • b)
    I section and circular sections
  • c)
    Rectangular, circular, and I section sections
  • d)
    All the shapes of sections
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A column is a compression member, the effective length of which excee...
Column is a compression member, the effective length of which exceeds three times the least lateral dimension. Compression member whose length does not exceed three times their least lateral dimension is classified as a pedestal.
Hence the option A is correct.
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A column is a compression member, the effective length of which excee...
Effective Length and Least Lateral Dimension

Before we understand the correct option for the given question, we need to understand the terms effective length and least lateral dimension.

- Effective Length: The effective length of a compression member is the distance between its points of zero moment. It is the length at which a column will buckle under a certain load.
- Least Lateral Dimension: The least lateral dimension of a section is the minimum dimension perpendicular to the direction of the load. For example, in a rectangular section, the least lateral dimension is the width.

Applicability to Shapes of Sections

Based on these definitions, we can now determine the applicability of the given condition to different shapes of sections.

- Rectangular Sections: For rectangular sections, the least lateral dimension is the width. Therefore, the condition is applicable to rectangular sections.
- Circular Sections: For circular sections, the least lateral dimension is the diameter. Therefore, the condition is applicable to circular sections.
- I Sections: For I sections, the least lateral dimension is the width of the flange. Therefore, the condition is not applicable to I sections.

Correct Option

Based on the above analysis, we can conclude that the correct option for the given question is 'A' - Rectangular and Circular Sections.
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A column is a compression member, the effective length of which exceeds three times its least lateral dimension. This is applicable to-a)Rectangular and circular sectionsb)I section and circular sectionsc)Rectangular, circular, and I section sectionsd)All the shapes of sectionsCorrect answer is option 'A'. Can you explain this answer?
Question Description
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