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




I have a unique situation looking for assistance.
A precast concrete tank ( 10'x17' footprint and 9' high) is to be installed in ground, with 2' soil cover. Water TAble is at grade; calculation showed that buoyancy forces govern; hence the tank will lift up unles more weight is added. The contractor decides to add a 12"x12" extension slab around the periphery of the tank at the bottom.This additional slab(shelf) will be poured at site after the tank is inground. This method is required because of the transportation and handling of the tank segments.
To accomplish this Speed Dowels are used in the tank at the bottom of walls every 24". Before the concrete is poured at site for creating the extension slab Dowels ( i.e. #6 deformed bars of certain lenght is installed in the openings at the bottom of the walls. The question is how to make sure that these dowels will not pull out or break. I did calculation for required development length ( hence bond stress). But I am not sure that this is sufficient. Do I have also check concrete pullout considering edge distance , concrete cover etc. Appreciate your guidance in this issue. Thanks

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


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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