After installing a basketball hoop, I realized I set the rebar incorrectly. It’s one of the standard Goaliath hoops that sits on top of a metal bracket with ~12inch bolts with l-shaped curves on the ends that extend down into a concrete pad. The rebar should have been set inside the bolts, but I misread the instructions and set them 18″ down in the 3′ hole. This likely resulted in around a 6″ gap between the top of the rebar and the bottom of the metal bolts. I used high-strength quikrete.
I know this is not ideal, but will I have major stability or safety issues with the hoop? It seems to function properly?
Replies
Yes. Concrete is terrible at resisting tension or bending loads. It is the rebar that provides the support for these loads.
I expect cracking to develop between the bolts and rebar, due to bending forces from winds, hanging onto the rim when dunking, use of post for other activities, etc.
I would drill some deep holes and epoxy in additional rebar to bridge the gap. Minimum overlap should be per the install instructions.
Catmandeux,
I really appreciate the response and advice. I am attaching a few pictures and a diagram of how it should have been installed. Like I mentioned, I just went too deep with the four pieces I installed. Would I drill two holes in the front of the bracket and one hole on each side to insert the new rebar? The rebar in the diagram looks like it should be inside the bracket bolts, so would I need to drill the holes at a slight angle so that part of the rebar is inside the bracket? Any issue with overlapping with the rebar already in the hole? Can you tell me what kind epoxy I should use, when I search all that comes up is concrete flooring epoxy?
Thank you for your help!
First you need to remove the post from the concrete base in order to access the proper locations for the rebar.
Drill holes and blow them out using compressed air. They MUST be dust free or else the dust will act as an isolator and prevent the epoxy from bounding to the hole walls. Size drill bit according to epoxy manufacturers' instructions. The drill bit is going to cost $100+ for the proper length and diameter. Might be able to rent the hammer drill and bit.
Rebar should extend up to 2" below top of concrete post and capped with hydraulic cement.
Use a Simpson or Hilti anchoring epoxy.
https://www.fastenersplus.com/Strong-Tie-ET-HP22-22-Oz-High-Solids-Epoxy-Anchor-Pkg-1?gclid=CjwKCAjwsan5BRAOEiwALzomX2QqCeX5Yj5a6Ph06k6WHzRKRmGrwIPz1Kjw3tgnEtHJhVU0CPACJRoCke0QAvD_BwE
https://www.hilti.com/c/CLS_FASTENER_7135/CLS_INJECTABLE_ADHESIVE_ANCHORS_7135/r4993
Each type requires a special gun/ dispenser. ($100 - $150) I would call Hilti and Simpson to confirm these epoxy suggestions for your needs. Tel numbers are in links above.
This is easily a $300 out of pocket remedy.
Frankie
Our pool basketball hoops are made to be durable and appealing to the eye. I have a GoSports Splash is adjustable allowing for varying hoop heights and it features a clear backboard for those who may not want a view obstructed. Read more about the GoSports Splash clear here: https://warevise.com/best-pool-basketball-hoop
While it's not ideal that the rebar is not positioned as recommended in the instructions, the stability and safety of the basketball hoop will depend on various factors, including the specific design of the goal, the quality of the concrete mix used, and the local soil conditions.
Setting the rebar 18 inches down in a 3-foot hole could potentially compromise the intended structural integrity of the installation. The purpose of placing the rebar within the bolts is likely to provide additional support and anchoring to prevent the hoop from tipping or leaning over time.
Here are a few considerations:
Concrete Cure Time: Ensure that the concrete has had sufficient time to cure. Even though Quikrete sets relatively quickly, it continues to gain strength over time. Make sure you've allowed it to cure for the recommended duration.
Visual Inspection: Regularly inspect the installation for any signs of movement or instability. Check for tilting or shifting of the pole and make sure the bolts are securely anchored in the concrete.
Usage: Monitor the hoop's performance during use. If you notice any wobbling, shaking, or instability, it could be a sign that the installation is not as secure as it should be.
Consult the Manufacturer: Contact the manufacturer of the basketball hoop. They may be able to provide specific guidance based on the design of their product.
If you have concerns about the stability and safety of the hoop, it's recommended to err on the side of caution. Consider seeking professional advice or assistance to assess the installation and make any necessary corrections. Ensuring the proper installation not only guarantees safety but also extends the lifespan of the equipment.