×
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

Steel Lattice Tower Modification

Steel Lattice Tower Modification

Steel Lattice Tower Modification

(OP)
I have been working on a steel lattice tower that needs to have one 20 foot long section of the pipe column legs and diagonals replaced. Problem is the legs are fully grouted, and the grout is continuous across the pipe joint.

If this tower its to be upgraded, the tower will have to be dismantled from 140 feet to the 6o foot level using as crane.

My quuestion is, considering the continuity of the concrete across the joints, which it is, can the concrete be cut ultrasonically rather than trying to rock the tower with all thoe ramifications there, or trying to cut through the concrete at a steel plate to plate bolted splice of the pipe columns? Anyone ever heard of doing that?

Mike McCann
MMC Engineering
http://mmcengineering.tripod.com

RE: Steel Lattice Tower Modification

Mike...the concrete can be cut with water to do what you want.

RE: Steel Lattice Tower Modification

We often use hydroblasting for cutting concrete... slikker than doggie poop on linoleum...

Dik

RE: Steel Lattice Tower Modification

(OP)
Ron and dik:

The problem is getting to the concrete to cut it, whatever the mechanism.

The pipes that encase the concrete are welded to two steel flanges that are bolted together. The flanges have holes through them at the center for the concrete to pass through and remain continuous.

Mike McCann
MMC Engineering
http://mmcengineering.tripod.com

RE: Steel Lattice Tower Modification

(OP)
Duh! The solution occured to me as I was driving to work this morning. Ever happen to you?

I'm abandoning the one 20 foot section, so cut the diagonals, and the pipe column above bottom of, and below the top of the abandoned section, and deal with cleaning up the ends on the ground and in the air for the new section.

Guess I need to take my own advice and keep it simple, huh?

Thanks guys.

Mike McCann
MMC Engineering
http://mmcengineering.tripod.com

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