I will start building a gate between the parking lot and the house. I need help with how to anchor the posts so that the gates don't warp.
The idea is for sturdy gate posts, preferably in brick masonry or alternatively in wood.
I am attaching a sketch of the idea.
The outer dimensions from post to post are about 4 meters.
I had made it so that I cast a reinforced foundation beam running between the gateposts' foundations underground. In this way, they cannot move relative to each other. It is suggested to let reinforcing bars protrude where the posts will stand and cast the posts or alternatively build around these bars. For wooden gateposts, substantial embedded base irons are recommended rather than regular post shoes. They will be too weak.
I would have made it so that I cast a reinforced bottom beam that runs between the foundation of the gateposts underground. In this way, they cannot move relatively. It is suggested to let reinforcing bars stick up where the posts are to stand and cast the posts or build around these bars. For wooden gateposts, sturdy cast-in-place plinth irons are recommended rather than regular post shoes. It becomes too weak.
Thanks for the answer.
Here I got some new ideas.
In other words, mix a heck of a lot of concrete in the wheelbarrow
If you cast a foundation beam and cast with 3 cardboard tubes for pillars that go up about 1m from the ground. Then you build a wall around this. When you've finished building, you can fill with concrete between the cardboard tubes/brick.
Do you think it would work or am I completely off track?
If you are going to lay the posts, you can drive each round with 4 stones so that you get a half-stone channel in the middle where the reinforcement bars stick up? This channel can be filled with concrete after the masonry is completed. I don't see any reason for paper tubes? It's also quite convenient to attach the stack of slabs to the hinges through into the concrete under masonry and before pouring.
If you're going to brick the pillars, you can do each turn with 4 stones so that you get a half-brick channel in the middle where the rebar sticks up. This channel can be filled with concrete after the brickwork is completed. I don't see any reason for paper tubes? It's also quite convenient to attach the board stacks to the hinges through into the concrete during brickwork and before casting.
Smart. No, the paper tubes are of no use, but using rebar works.
How deep should the reinforced horizontal beam go under the ground?
The beam, or whatever we should call it, as KOW says, doesn't need to go very deep. I have personally cast such a construction and it only lies under the paving stone above. But you need three sturdy footings for your heavy posts, even in the middle, so you will likely end up with two beams. Down to frost-free depth, add capillary-breaking material and then pour concrete directly into the hole, which can preferably be almost as wide in diameter as the posts. Gates are heavy and exert large leverage forces. The beam itself doesn't need to be very thick, 15-20 cm is sufficient. Dig two trenches between the holes and just add reinforcement. It might be a good idea to rent a mixer or at least manage a mixing paddle as this ordeal will probably require between 200 and 350 liters of concrete, I'd say.
Now it will instead be a large pergola that will end with a gate.
Will plant wild wine/hops that creeps along the pergola.
It was just supposed to be a small project but usually it gets out of hand.
Could it be because of the heat you think?
