Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)

 
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Old 10-22-2007, 08:56 PM   #21
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


That kinda looks dangerous. If those bolts pop through the osb part, that water line is gonna go with it.
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Old 10-23-2007, 06:27 AM   #22
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


Should have cut 3/4 plywood squash blocks and put then between the i sections on both sides and then bolted through
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Old 10-29-2007, 01:25 PM   #23
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


I would hang it from a beam that spans diagonally across the corner and is supported by the walls and leave the I-Joists alone. Two 2x4's should be fine if the span is 10 ft. or less.

Another method would be to hang it from a 4 ft square piece of 3/4" plywood attached to the bottom of the joists.
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Old 10-29-2007, 01:43 PM   #24
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


Quote:
Originally Posted by Knyte260 View Post
Stands suck because if you do alot of kicking, it can limit your rotation. For several reasons, I want to hang it from the joist or joists somehow. There has to be a good way to do this. I'm only 3 feet from the load bearing wall.
You shouldn't be kicking that much anyway. The only really effective kicks are Muay Thai type leg kicks. You can train those all day with a stand. Anything higher leaves you too vulnerable for a takedown. You need to work on combinations, such as L-R-leg kick- sprawl. You should work on grappling too, specifically work on your guard position for the rare times someone gets you to your back (rare because you've been working on that sprawl). Work on butterfly guard so you can sweep them and get back to your feet as quick as possible. You don't want to spend much time on your back in a street fight. Last thing you need are 4 of his homies trying to kick you when you're down.

I'm just being an ass....I like the ideas of sandwiching the I joists with 2x's and through bolting.
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Old 10-30-2007, 09:05 AM   #25
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


I left something out in my earlier plywood comment.

I believe this has already been mentioned or implied by other posts but some of the comments seem to ignore the fact that it is important to not hang anything directly from the bottom chord or web of an I-Joist because there is little to prevent the web from separating from the chords; an I-Joist is designed to only be loaded from the top. Therefore the load needs to be transfered directly from the bottom chord to the top chord with something like plywood or 1X gussets on each side of the I-Joist attached only to the horizontal chords. Blocking or squash blocks should be used very carefully or avoided since they do little to reinforce the joist in tension and could cause the web to be loaded.
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Old 11-01-2007, 06:55 PM   #26
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


I wouldn't hang anything from them. webbing or not. the chances of having every knockout line up for a piece of pipe is slim to none, and that is only for running things through, not for support of weight or the force of punching or kicking.

i'd find something else you can fasten to the block/conc wall and then to an interior stair wall or build something.

you are just asking for trouble.

it is possible to cut out the entire webbing in spots, but I can't recall the rule of thumb for them. I think it's in a 1/3 from each end bearing point, then you can cut more out. that's for ductwork or pipes etc. not for hanging weight.

find a different way to hang it. did you even think of how you would get the pipe in there if you were to drill a hole using a hole saw? it couldn't be a very long pipe
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Old 11-08-2007, 11:08 PM   #27
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


Quote:
Originally Posted by send_it_all View Post
You shouldn't be kicking that much anyway. The only really effective kicks are Muay Thai type leg kicks. You can train those all day with a stand. Anything higher leaves you too vulnerable for a takedown. You need to work on combinations, such as L-R-leg kick- sprawl. You should work on grappling too, specifically work on your guard position for the rare times someone gets you to your back (rare because you've been working on that sprawl). Work on butterfly guard so you can sweep them and get back to your feet as quick as possible. You don't want to spend much time on your back in a street fight. Last thing you need are 4 of his homies trying to kick you when you're down.

I'm just being an ass....I like the ideas of sandwiching the I joists with 2x's and through bolting.
Now we're talking my language. First off a 100# bag on a stand? I guarantee I can flip the stand with a thai suitcase kick. Canvas does not hold up well to power, and it will rip your feet open. The bag I'm kicking in the pic also comes with an internal pole stand that goes up the middle and bolts to the concrete. It sits on the ground and you do not have to mount it to the ceiling if you do not want to. There about $300 and worth every penny check out the Fairtex website. 100# is way to light for kicks. I had a 6 ft banana bag filled with corn and it was pushing 350#. Hurt like hell to kick though and eventually stretched out the bag terribly. I had it sitting on the ground to support the weight and had 2 2x4s mounted from joist to joist whith an eye bolt going through them. Worked great and now I have a 200# bag hanging from it.
Nothing wrong with high kicks either as long as the guy is dazed or being stupid dropping his hands. It's all in the setup. I'm actually an expert believe it or not. I was undefeated as an amateur muay thai fighter. Retired when I went pro and did not have time to train 8 hours a day.
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Old 11-08-2007, 11:15 PM   #28
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


note to self..."don't f**k with The Plumber".
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Old 11-08-2007, 11:15 PM   #29
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


how's the ground game?
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Old 11-08-2007, 11:26 PM   #30
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


So THATS how they get margarine out of corn.
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Old 11-09-2007, 07:49 AM   #31
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


Quote:
Originally Posted by send_it_all View Post
how's the ground game?
3 years jiu-jitsu and a little lions den submission. I try to keep it standing in mma, but I'll survive on the ground. My defense is way better than my offence. I always figured I might not beat them on the ground,but they will not beat me either.
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Old 11-09-2007, 08:40 AM   #32
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Re: Hanging A 100 Lbs Punching Bag From I-Joists? (pics Inside)


When i hung mine i used 2x12 acrossed 2 joists and put 3 lags in each side with a eyebolt in the center to hang the chain on.

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