Question
Download Solution PDFCalculate the effective length of a steel column of length 3 m that is effectively held in position at both ends and restrained in rotation at one end?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
The following table shows the effective length of prismatic compression members -
|
Degree of end restraint |
Theoretical value |
Recommended value |
|
Effectively held in position and restrained against rotation at both ends. |
0.50L |
0.65L |
|
Effectively held in position and restrained against rotation at one end |
0.70L |
0.80L |
|
Effectively held in position at both ends, but not restrained against rotation. |
1.00L |
1.00L |
|
Effectively held in position and restrained against rotation at one end and at other end restrained against rotation but not held in position |
1.00L |
1.20L |
|
Effectively held in position and restrained against rotation at one end and at other end partially restrained against rotation but not held in position |
- |
1.50L |
|
Effectively held in position at one end but not restrained against rotation and at other end restrained against rotation but not held in position. |
2.00L |
2.00L |
|
Effectively held in position and restrained against rotation at one end and at other end not held in position and not restraint against rotation. |
2.00 L |
2.00L |
Given, L= 3 m
\(\text{Effective length of a steel column} = 0.8L = 0.8 \times 3 = 2.4 \, \text{m} \)
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