×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Slender RC columns (BS or EC2)

Slender RC columns (BS or EC2)

Slender RC columns (BS or EC2)

(OP)
Hi,

I am just trying to get my head around slender RC columns and any help would be much appreciated.

Both BS and EC (eurocodes) give rigorous methods of calculating second order effects and induced moments by calculating the deflection of the columns at the ultimate limit state. However, when required to assess the deflection of say a cantilevering concrete column someone could use the service (unfactored) moment and check whether section is cracked or not and thus by that check deflection using the reduced stiffness (?). These too values are nowhere close to each other. I will have a closer look to basic principles, however, any thoughts are more than welcome.

RE: Slender RC columns (BS or EC2)

One is a strength level check, the other is a serviceability level check.  The level of cracking, the effective section properties, and teh resulting deflections will vary significantly from serviceability to strength level loading.  I don't know anyone who checks deflections or drifts at strength level loads (except for max seismic drift).

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources