×
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

Straightness of Monorail Beam

Straightness of Monorail Beam

Straightness of Monorail Beam

(OP)
We have a monorail beam (S15x42.9) which has some local deformation of the bottom flange. The trolley has four wheels but is only driven by two of these geared wheels. The deformation is only about 1/8" (vertical); but it is enough that the trolly drive wheels can lose contact with the bottom flange of monorail, and therefore trolley is stuck in place.

Anyone have any experience with straightening of this type? AISC Steel Construction Manual allows heating of normal steel section to 1200F to allow straightening, not sure if crane rails are different. Broused thru CMAA-70 and didn't seen any mention.  

RE: Straightness of Monorail Beam

Can you "grind" out the flaw?? or fill with welding or maybe even epoxy??

RE: Straightness of Monorail Beam

(OP)
Not sure about grinding, it is an option just not prewheels to seeferred. I've asked shop to re-align trolley wheels to see if it lessens issue. I had also thought about using one of the belzona ceramic metal products to level.
n

RE: Straightness of Monorail Beam

(OP)
Greg,

The bent part in rails appears to be a fatigue/wear issue. The deformation is in the area of most use, a specific location which it often services one paticular piece of equipment.

21121956, Thanks for the document i will review.  

RE: Straightness of Monorail Beam

Might need to be replaced with something a bit stronger

RE: Straightness of Monorail Beam

deformation of a piece of rigging equipment should raise a flag.

RE: Straightness of Monorail Beam

That's basically what I am suggesting agreeing with byrdj

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