4" round hole in 10" steel wshape Potential Problems 4

[crozroz0000]

What checks must I do to see if a wideflange beam can have a hole in it?

I do the following checks: Am I on the right track?

1-Check to see if how much section modulus was removed by the hole

2-Check to see how much I was removed

3-Check to see if shear is ok for section with hole.

 

[SperlingPE]

AISC Design Guide #2
This has all the checks and examples as well.
You are on the right track.

 

[jike]

I would try to locate the hole in the midle third of the span (assuming it is uniformly loaded) where the shear is relatively low. With such a shallow beam (10"), try to keep the center of the hole at the mid depth of the beam.

The procedure is a little complicated today so I suggest that you get a copy of AISC Steel Design Guide 2, "Steel and Composite Beams with Web Openings".

 

[JAE]

Yes - Design Guide 2 - there are a lot more than your three checks you list. Perhaps 12 or so.

 

[twinnell]

There is software out there that will check it for you. RAM Beam is one of them. If you have these quite a bit, the software is $400. You could download the demo for free to try it. If you like it, buy it. Like I said, if you think you will have quite a few of these in the future, might be worth it.