anchor post fixings Gday all. I want to fix gal post stirrups down onto the edge of a concrete slab for a small pergola. I was going to use dynabolts but am worried that when i drill into the concrete near the egde, it will just break away. Any ideas or tips? cheers guys.
You wouldn't put them in the edge. I assume that you mean on the top, but close to the edge.
Keep the holes a minimum 50mm from the edge, and you could use a chemical anchor. They're a bit dearer than a dynabolt, but they don't hold by expansion so there's no chance of cracking the concrete as you tighten them up. I've had that happen a few times with expansion bolts near the corner of a slab..
Yeah i did mean on top. Good idea about the chem anchor. Thanks for the tip.
Hi Mako, you may have already done the job by now but just in case you have not, I would suggest a screwbolt, it is as easy to use as drill and screw it in. It is not an expansion anchor like a dynabolt so it is less likely to crack the edge and it is not as messy as a chemical anchor.
Be aware that edge distance and spacing of the bolts has the effect of reducing the holding strength of the fixings by quite a bit.
Cheers
Alan
Posting Permissions
LinkBack URL
About LinkBacks
Reply With Quote