×
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

Corner Joints with fillet welds.

Corner Joints with fillet welds.

Corner Joints with fillet welds.

(OP)
Is the strength of a corner joint made with fillet welds the same as a corner made by bending a plate?

I design a lot of glulam hangers that use U shaped bearing seats.  The type of hanger I design are similair to Simpson LEG hangers or some of their other heavy duty glulam hangers.

Simple hangers are often made by taking two standard 3x3x 1/4" angles and welding a flat bearing seat between the vertical angles.

The common method of joing the parts is to place the plate so that its upper corners are touching the inside corner of the angles.  The only place the angles and plates touch are at their corners.  

Then a 1/4" fillet is placed on the outside of the joint with a 1/8" fillet on the inside of the joint.

RE: Corner Joints with fillet welds.

The best way to compare different designs against requirements  would be to test by applying loads exactly as they will be sustained in service and by continuing to failure.

http://www.welding-advisers.com/

RE: Corner Joints with fillet welds.

For pure tension compare the area.
For bending compare C/I.
For compression look at area and I.  But be careful here because crippling strength is different depending on how much material is in the corner.

RE: Corner Joints with fillet welds.

Oh!  I forgot the most important consideration.  Due to the welding you have degraded the material as compared to forming.  And depending on how tight the bend radius is there may be problems with cracking.  Anyway, don't forget to account for the reduced strength due to the weld.

RE: Corner Joints with fillet welds.

(OP)
Thank you, all, for the poosted information.

Goahead is right, the best way to answer the question is with testing of the welded hangers.  The question arises in the first place because hangers from companies like Simpson use much thinner steal then what would appear to be required by calculations.

So when you design a hanger by hand, people expect you to use the same size plates as Simpson.  However the design loads of the Simpson hangers, have been verified by load tests.  Also Simpson bearing seats use bent plate while hand design hangers use welded bearing seats.  

   

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