×
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

Groin vault analysis

Groin vault analysis

Groin vault analysis

(OP)
I'm trying to determine the safe load capacity for a concrete groin vault roof structure. The structure is a buried 1,000,000 gallon water vault from the early 1900s. The vault is constructed of concrete and has a groin vault roof/ceiling supported by columns at a nominal 13' o.c. I am trying to determine what sort of equipment and associated ground pressure we can drive over the vault. The ceiling is 6" and reinforcing is unknown. There is currently 2' of soil cover over the structure and the plan is to remove some of the soil cover (~16"), apply a sheet linear membrane to waterproof the ceiling and prevent ground water from seeping thru the cracks/joints and then re-topsoil over the membrane. Does anybody have a reference for the design or analysis of this type of structure? I know it must be stronger than a two-way flat slab. Thanks in advance.

Dan

RE: Groin vault analysis

Much stronger than a flat slab I would think. The only reference in my library that deals with this kind of thing is this: Link. It's all first principles stuff though, no code design.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

RE: Groin vault analysis

tebodm:

You might have a look at John Ochsendorf's web site at MIT. He builds on the work of Jaques Heyman that KootK linked to. While the main interest on the MIT site is masonry they have several discussions of the analysis of groin vaults. (See: Interactive Thrust Line Analysis for Masonry Structures)

Link

Regards,

DB

RE: Groin vault analysis

(OP)
Thanks for the links, I'll check them both out!

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