×
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

Concrete Shearwalls with Openings Design

Concrete Shearwalls with Openings Design

Concrete Shearwalls with Openings Design

(OP)
In concrete buildings, the stair and elevator cores are often used for shearwalls.  Also, there are often duct shafts that are a part of the use of the core too.  This leads to concrete shearwalls with many openings.  

For the purpose of this question, consider a shearwall, one story, 12'-6" floor-to-floor and 28' long.  Visualize from left to right a 3'-0" wide pier, then a "6'-5" wide by 8'-2" door opening, then an 8'-0" wide pier, then a 6'-0" wide by 4'-0" high duct opening (assume same head as door opening), then the remaining 4'-7" wide pier.

Shear forces to each of the three piers could be either distributed based on rigidity or linearly based on length, but either way, and this is the question, what design is appropriate for the design of the individual piers and what should the criteria be?  This is a shearwall resisting seismic forces in an area of high seismicity.

Should the flexural strength of any individual pier be less than the shear strength? (to assure a flexural failure)  If so, by how much?  Should all piers of all the cores be checked for this?  How have some of you been handling this issue of concrete shearwalls with openings?

JSA

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