×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Shear Wall Design Inadequacy in ETABS

Shear Wall Design Inadequacy in ETABS

Shear Wall Design Inadequacy in ETABS

(OP)
I am designing an 8-storey RCC building in ETABS with lift core and shear walls. While designing for Shear Wall, I get the error message as indicated in the picture attached with this post. Currently, I have defined 250 mm thick wall section. However, the wall is failing in flexure and also some are overstressed in shear. Can somebody explain to me about these failures and how they can be corrected? Any link to reading about behaviour and design of shear walls in ETABS is also welcome!!

RE: Shear Wall Design Inadequacy in ETABS

Need more information... What's the pier size? strength? expected rebar?

But looking at your loads - you've got tension and major axis bending. Plotting the interaction diagram, your bending capacity is hindered once the section goes into tension. Your pier is also failing in shear.

Also, the fact that the top of the pier has more demand than the bottom flags up a potential error. Do you have a basement modelled?

RE: Shear Wall Design Inadequacy in ETABS

The summary is a different set of loads to the original screenshot.

Anyway this pier isn't failing in flexure anymore but the boundary elements seem to be going over the limit (0.20*Fck). The pier is running at around 3MPa shear, which is quite high.

I suggest reading up on the backstay effect, especially in a seismic context. Few resources below.

Link 1

Link 2

Link 3

Link 4

Link 5

Link 6

Link 7

Link 8

RE: Shear Wall Design Inadequacy in ETABS

(OP)
Thank you, @Trenno! I will go through them all!!

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! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close