existing steel beam - new LVL beam - connection

[Mitso]

Hi,

I have an existing steel beam which currently sits on a column

I would like to demolish column and let beam into a new LVL beam.

Can I use two angles:
1. Field bolted to either side of web of existing beam and
2. Lag screwed / bolted through face of new LVL

We want avoid any filed welding due to combustibility...

Any comments or suggestions?

Thanks

 

[msquared48]

As long as the LVL and connection are properly designed, I don't see why not.

I understand that the angles would be for ease of connection and have no problems with that. Just minimize the eccentricity of the angle bolts at the steel beam.

To lessen the load to the bolts, you could pre-weld the angles to a top bearing plate - additonal angle ? - to bear on the top of the LVL.

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[Mitso]

Thanks msquared48. This was my first post...

I am assuming you are referring to a modified half saddle type hanger?

 

[msquared48]

Yes, and congratulations on your first post. Hope to see many more.

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[Mitso]

Mike,

And by minimizing the eccentricity of the angle bolts at the steel beam, I am assuming you are referring to placing the bolts in the web of the steel beam as close as possible to the new LVL?

Appreciated!

 

[msquared48]

Yes.

Mike McCann
MMC Engineering

http://mmcengineering.tripod.com

 

[structSU10]

As a side note, not really related to you question, when you transfer the load to the LVL you should jack the ends to preload the LVL before removing the column and or shoring. If you just remove the column you will induce a dynamic load to your beam when you transfer the load which could be problematic, especially due to it being an LVL. It could also possibly damage the floor above due to excessive deformations. You are also now making a hard spot (where the column was) into a softer spot (due to spanning LVL) which will induce more sag in the floor above, so the LVL may not want to be designed just for strength.

I realize you may already have this taken all of this into consideration, but they are important considerations.