Packing beneath RSJ?

[junglejim]

Just spotted this on my newly erected timber frame build and wondered if I should  be concerned? Surely there’s a neater way of doing this… slight worried that BC might have an issue?

 

 Thanks

[ETC]

Not acceptable to a BCO.

[bassanclan]

It's a good job you noticed it before being covered over with plasterboard.

 

It needs metal shims, the full surface area of the bearing

[Alan Ambrose]

I think there’s some load bearing concrete grout for this also.

[Conor]

6 hours ago, Alan Ambrose said:

I think there’s some load bearing concrete grout for this also.

That's what we did. Beam set in place, propped up, timber shuttering around the padstone and beam, non shrinking grout poured it. Great job but you have to basically make the shuttering fully watertight as it's very fluid.

[Alan Ambrose]

Hopefully that was just temporary shimming.

[junglejim]

That would be logical but they’ve finished on site!

[junglejim]

1 hour ago, Conor said:

That's what we did. Beam set in place, propped up, timber shuttering around the padstone and beam, non shrinking grout poured it. Great job but you have to basically make the shuttering fully watertight as it's very fluid.

Thanks that sounds like a good solution… can you suggest a grout?

[Conor]

59 minutes ago, junglejim said:

Thanks that sounds like a good solution… can you suggest a grout?

This is what my engineer specified. It's VERY fluid.

 

https://larsenbuildingproducts.com/product/multigrout-60/

 

 

[junglejim]

41 minutes ago, Conor said:

This is what my engineer specified. It's VERY fluid.

 

https://larsenbuildingproducts.com/product/multigrout-60/

 

 

Thank you that’s helpful

[Alan Ambrose]

Something like:

 

1. Prop up with acrows checking levels.
2. Remove metal shims.
3. 'Shutter' fairly convincingly as the grout is very liquid.
4. Pour - I'm thinking just up to a level a little higher that the bottom of the RSJ. So the RSj is supported without any air bubbles but, to allow thermal expansion of steel, not too enclosed . (Others may have different views.)
5. Check the levels again straight after pouring 😃.
6. When green, remove and trim any flashing etc.
7. Cover with polythene in hot weather?
8. Takes ~1 month to cure to max strength, so resist the desire to load up quickly.