View Full Version : I-beam Connections

Ian Latchford
10-31-2007, 05:53 PM
Hello Everyone
As a newbie i am sorry if this has been asked before.

I am designing a sub floor structure of WF16 x 36 L=30.
The configueration is like a T with two legs and is supported on I-Beams at each of the four ends. What is the recommended Beam to Post connection, and Beam to Beam.

Bruce Breedlove
10-31-2007, 06:01 PM
I would recommend that you have a structural engineer design this for you. Most areas require a SE stamp on structural designs anyway.

Ian Latchford
10-31-2007, 06:47 PM
Thanks for the response
I am having an Engineer provide the review and report for Building and Safety submission, however, I was trying to get a jump on developing the drawing details.

Thanks again

Bruce Breedlove
10-31-2007, 07:38 PM
Your engineer can provide those details. A lot depends on the loads and how he designs the structure. If you are using teleposts you can bend the ears of the post end around the bottom flange (if the flange is not too wide) or clamp the flange and plate together. Sometimes small holes may be drilled through the flange and plate to allow a bolted connection (the engineer would need to design this connection).

Are you sure you are using WF16X30 and not a W16X31? I couldn't find the WF16X30 in my steel manual. The flange width of a W16X31 is 5.525" (so you can see if it is wider than the telepost plate and ears).

A common beam-to-beam connection is a bolted connection (or a welded & bolted connection) where one beam frames into the other beam and its web is bolted to angle iron that is bolted (or welded) to the web of the other beam. If the beams are the same size the flanges of the beam will need to be coped. Again, your engineer can provide these details.

Jerry Peck
10-31-2007, 08:07 PM
I am designing a sub floor structure of WF16 x 36 L=30.

Like Bruce, I know the "W" means "wide flange", the "16" is the depth of the beam, and the x36 means it weighs 36 pounds per linear foot, and I am presuming the L=30 means the length is 30 feet long.

But, like Bruce, I am not familiar with the "F" part either.

Be that as it may, you should leave the designing to the structural engineer.