Another universal beam question

[tony1851]

@op; why not weld 4 short lengths of angle (say 100 x 100 x 10) to the bottom flange. If they stuck out beyond the flange by - say - 175mm, that would give 75mm of bearing for the joists.

 

[cjard]

In other words, a massive joist hanger? How about making a hanger or four, out of 10mm steel and welding to both flanges?


I'm still not clear on why the longer joists can't be cut down.. Put an acrow underneath each and then carefully chainsaw the end off


(Pic of the existing building would be helpful)

 

[geraldthehamster]

In practice with domestic loadings, it's never an issue supporting joists off the bottom flange, even with a welded plate as an extension.

Thanks Tony, I'll bear that in mind as well.

Cheers
Richard

 

[geraldthehamster]

I'm still not clear on why the longer joists can't be cut down.. Put an acrow underneath each and then carefully chainsaw the end off

Mainly because there's a finished warm roof deck above, extending to the ends of the joists, that we're reluctant to disrupt unnecessarily.

Cheers
Richard

 

[cjard]

Why would it suffer if you removed 4 inches of joist end, and replaced those 4 inches with a UB?

 

[geraldthehamster]

@op; why not weld 4 short lengths of angle (say 100 x 100 x 10) to the bottom flange. If they stuck out beyond the flange by - say - 175mm, that would give 75mm of bearing for the joists.

One of my reasons for posting this was to discover if that sort of thing was allowable. Thanks.

Richard

 

[geraldthehamster]

Why would it suffer if you removed 4 inches of joist end, and replaced those 4 inches with a UB?

Might be doable.

 

[geraldthehamster]

Why would it suffer if you removed 4 inches of joist end, and replaced those 4 inches with a UB?

Might be doable.

Might be the best answer yet actually.