Help, how do I attach the support beam to the stone?

[Semesterfixaren]

Hello!

I have a gangway to a dock that needs something to rest on inland. My idea is to attach a horizontal support beam for the gangway to rest on (see sketch). The problem is that one of the mounts where the support beam should be attached is a large rock, which is so big that the support beam needs to be attached to the side of the rock, so the question now is what technique is the smartest to fix the mount?

Even though the dock is in relatively calm waters, I guess there will be some horizontal forces on the support beam, i.e., tension and compression when the dock moves. Additionally, there will naturally be vertical pressure when walking on the gangway.

Which method would you recommend for attaching the beam to the rock? Expansion bolt in the rock + some metal fitting? - If so, how? Or is it better to cast a ledge for the support beam to rest on?

Grateful for all ideas!

 

[Matti_75]

The best would be if you can drill a joist hanger to attach the rule with.

 

[Henrik.woll]

Drill in some iron into the stone and cast a plinth or beam shoe as mentioned above

 

[Semesterfixaren]

Thanks for the quick answers!

I first thought of just a joist hanger, but I'm afraid it will "wear out" from waves, i.e., the horizontal forces. However, if I cast a projection to attach the mounting to, it should be better!

Have a great weekend!