Onsite remedial work of metal plate connectors on prefabricated trusses

[jack1962]

What is the method of applying truss plates on site as part of remedial work

[Dave Jones]

ask your SE ?

[tonyshouse]

We used then a lot ourselves and clamped them in with G clamps with metal plates that more than covered the size of the plates.

 

also but don’t tell anyone with two club hammers, one each side, two plates, one each side synchronised banging again with metal plates so as not to do damage 

[Bonner]

3 hours ago, jack1962 said:

What is the method of applying truss plates on site as part of remedial work

 

These are normally assembled with a 10 ton hydraulic press. Any site method would be unlikely to achieve the same structural strength. As mentioned, consult a structural engineer. Another joint, ie. screw/bolted plates may be more suitable. Or for non-structural repairs, a big hammer ...

[Hobbiniho]

you can get gangnail plates and hand twist nails, to replace the pressed plates as fitted in the factory, as said consult a structural engineer as generally the hand nailed gangnail plate will need to be bigger than the pressed plate

[markocosic]

Big clamps and metal spreader plates.

 

 

 

Raid your nearest backstreet garage for suspension busy tools. For example:

 

Hydraulic:

https://www.sgs-engineering.com/cc10-10-ton-hydraulic-c-clamp

 

Mechanical:

https://www.ebay.co.uk/itm/265214345479

https://www.ebay.co.uk/itm/254286517085

etc

 

Or better still, though not as fast, is a couple of RSJ offcuts (slit a big RSJ into two "T" pieces) and four lengths of chinesium grade M20 threaded rod from Screwfix (if you can drill 20 mm holes in RSJ - rough chain drilling a 22 mm hole using a 6 mm bit and a round file is fine) or high tensile strength (8.8 grade) M12 threaded rod (if your can't drill 20 mm holes). Squash together with spanners.

 

 

These will easily apply enough force to seat press in nail plates. 

 

 

Clamping the timbers so that they don't move is there hard part. Drilling some extra holes in the spreader can achieve this.

 

[Dave Jones]

11 hours ago, Hobbiniho said:

you can get gangnail plates and hand twist nails, to replace the pressed plates as fitted in the factory, as said consult a structural engineer as generally the hand nailed gangnail plate will need to be bigger than the pressed plate

 

can be done using twist nails and a twist nail gun. Will void build warranty as the truss calcs will no longer be valid if BC catch you without a drawing from an SE telling you do it.

 

Structural items cane be messed about with lightly.