Chemical Anchoring RSJ to Padstone

[DMelv95]

Hello, I've removed a wall between kitchen and dining room. At the external wall, SE has specified beam sitting on top of padstone with M12 chemical anchor, plus an SHS windpost with steel angle, with more bolts between steel angle and RSJ. The other side of the room, the RSJ is on top of 3 cripple studs, so that side is fairly straight forward.

My question is how to get the chemical anchors into the padstone, and then the threads through the RSJ holes?
If I set the anchors in the padstone, then mortar the padstone in place, there's no way to lift the RSJ over the anchors because of the joists above obviously...

Only method I can think of is to acro the RSJ up with holes drilled, put the anchors into the padstone, then put the padstone up through the holes and stuff around with mortar. Leave to set before removing acros.

Attached 2 details of the same end (One of the section details doesn't have the windpost in the drawing but they are both definitely the same end of the RSJ).

Cheers!

 

[tony1851]

Bolting the bottom flange to the padstone doesn't add much to wind resistance.
Of more importance is the connection between the top of the windpost and the underside of the beam.
It would also be better if the windpost itself could be bolted back to the wall (eg with welded lugs) but no fixings are shown.
Presumably the base of the windpost is specified as being fixed to the floor or remaining wall below?
As regards bolting the beam to the padstone, why not ask the SE if s/he has any ideas? You'd need to be very accurate in setting the bolts if you decide to push the padstone up against the underside of the beam.
A lot of useless faff IMO.

 

[robinbanks]

Drill the pad stone then place it, use a tape measure and helper to ensure the distance between the pad stone holes is the same as on the beam, fit the beam, fit the bolts?

Laser chalk line will likely be of help here

Personally I'd cast the pads myself, and just drop the threaded bar into the still-wet mix before vibrating it..

A lot of useless faff IMO

Hear here