Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > According to IS : 456-2000, the column or the...
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According to IS : 456-2000, the column or the strut is the member whose effective length is greater than
- a)The least lateral dimension
- b)2 times the least lateral dimension
- c)3 times the least lateral dimension
- d)4 times the least lateral dimension
Correct answer is option 'C'. Can you explain this answer?
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According to IS : 456-2000, the column or the strut is the member whos...
The Code defines the column as a compression member, the effective length of which exceeds three times the least lateral dimension. The term ‘ pedestal’ isused to describe a vertical compression member whose ‘effective length’ is less than three times its least lateral dimension.
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According to IS : 456-2000, the column or the strut is the member whos...
Explanation:
The effective length of a column or a strut is an important factor in determining its behavior under different types of loads. According to IS : 456-2000, the column or the strut is considered to be the member whose effective length is greater than 3 times the least lateral dimension.
Effective Length of a Member:
- The effective length of a member is the distance between points of zero moments in the member due to the given type of loading.
- In the case of a column or a strut, the effective length is determined based on the end conditions and support conditions.
Least Lateral Dimension:
- The least lateral dimension of a member is the smallest dimension of the cross-section in the plane perpendicular to the axis of the member.
- For example, in a rectangular column, the least lateral dimension would be the smaller side of the column.
Significance of Effective Length:
- The effective length of a member affects its buckling behavior and overall stability.
- Members with longer effective lengths are more prone to buckling under compressive loads.
Identification of Columns or Struts:
- Based on IS : 456-2000, a column or a strut is identified as the member whose effective length is greater than 3 times the least lateral dimension.
- This criterion helps in distinguishing between columns/struts and other members like beams or slabs.
Conclusion:
- In conclusion, the effective length is a critical parameter in determining the behavior of columns and struts under different types of loads. It is important to consider the effective length in the design and analysis of structural members to ensure their stability and safety.
The effective length of a column or a strut is an important factor in determining its behavior under different types of loads. According to IS : 456-2000, the column or the strut is considered to be the member whose effective length is greater than 3 times the least lateral dimension.
Effective Length of a Member:
- The effective length of a member is the distance between points of zero moments in the member due to the given type of loading.
- In the case of a column or a strut, the effective length is determined based on the end conditions and support conditions.
Least Lateral Dimension:
- The least lateral dimension of a member is the smallest dimension of the cross-section in the plane perpendicular to the axis of the member.
- For example, in a rectangular column, the least lateral dimension would be the smaller side of the column.
Significance of Effective Length:
- The effective length of a member affects its buckling behavior and overall stability.
- Members with longer effective lengths are more prone to buckling under compressive loads.
Identification of Columns or Struts:
- Based on IS : 456-2000, a column or a strut is identified as the member whose effective length is greater than 3 times the least lateral dimension.
- This criterion helps in distinguishing between columns/struts and other members like beams or slabs.
Conclusion:
- In conclusion, the effective length is a critical parameter in determining the behavior of columns and struts under different types of loads. It is important to consider the effective length in the design and analysis of structural members to ensure their stability and safety.
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According to IS : 456-2000, the column or the strut is the member whose effective length is greater thana)The least lateral dimensionb)2 times the least lateral dimensionc)3 times the least lateral dimensiond)4 times the least lateral dimensionCorrect answer is option 'C'. Can you explain this answer?
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