I am going to build a deck and need to attach a support beam level with the edge elements. I can't attach it to the actual edge element and don't want to drill into the slab. I also don't want to use piers.
However, I have a cast retaining wall underneath and am considering placing 70x70 posts with threaded rods or expansion bolts in it to then lay the support beam on top according to the picture.
Any thoughts on this solution? Are there other better alternatives?
If the retaining wall is open at the back, it's fine to attach it that way, but turn the notches for the beam so it comes out a few cm from the retaining wall, as a lot of dirt will accumulate on and between the beam/retaining wall and it almost never dries, resulting in it rotting.
If the retaining wall is open on the back side, it's okay to attach it like that, but turn the notches for the beam so it comes out a few centimeters from the retaining wall. There's a lot of debris on and between the beam/retaining wall and it almost never dries, which will lead to rotting
Great tip to get the beam a bit away from the wall. Thanks!
On the other side of the retaining wall, i.e. under the slab, there is macadam. The wall is 20cm thick, so I'm planning to drill about 10cm in for the threaded rod, which I'll attach with chemical anchors.
It was easy to turn in Caden I see, now it's good, as for the chemical anchor you don't need it, expanders with about 10 cm insertion are sufficient, the pressure comes directly from above and the expander should hold it, you can advantageously put an expander through the line and the rule, there will be one above and one below then.
It was easy to turn in Caden I see, now it's good, then with the chemical anchor you don't need, it's enough with an expander, which goes in about 10 cm, the pressure comes straight from above and the expander should hold, you can advantageously put an expander through the line and the rule, it will be one up and one down then.
The beam sits in front of the edge element so there's only styrofoam to attach to unless I drill all the way into the footing, but that feels unnecessary.
Don't know what it looks like, but you've got some things to think about, so it'll probably be good with the attachment once you've figured it out a bit
And now you can rinse a little along the wall if you think or see that some dirt has accumulated in between, it dries quickly so no worries about it, let the decking end half a cm from the wall.
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