The effective length of a steel column effectively held in position at both ends and restraint in rotation at one end is 

This question was previously asked in
WBMSC Sub-Assistant Engineer (Civil) 05 Jun 2022 Official Paper
View all West Bengal Sub Assistant Engineer Papers >
  1. 0.85 actual length 
  2. 0.8 actual length 
  3. 0.65 actual length 
  4. 0.60 actual length 

Answer (Detailed Solution Below)

Option 2 : 0.8 actual length 
Free
WBMSC SAE Full Test 1
1 K Users
100 Questions 200 Marks 120 Mins

Detailed Solution

Download Solution PDF

Explanation:

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


Where L is the unsupported length of the column.

Latest West Bengal Sub Assistant Engineer Updates

Last updated on Jun 14, 2025

-> Candidates can apply for the West Bengal Sub Assistant Engineer recruitment from June 18 to July 8. 

-> A total of 125 vacancies are announced for WBMSC Sub Assistant Engineer Recruitment.

-> West Bengal Sub AE Notification 2025 has been released.

-> Candidates should refer to the West Bengal Sub Assistant Engineer Syllabus for their preparations.

-> Practice West Bengal Sub Assistant Engineer previous year papers

Get Free Access Now
Hot Links: teen patti cash teen patti rich teen patti master king teen patti master plus