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Old 08-14-2012, 10:59 PM   #76
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By the way guys....notice how the concrete is a little below ground level in the one picture? There are two others like that where the ground is high.

Is that an issue?


Last edited by sannitig; 08-14-2012 at 11:00 PM. Reason: cause
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Old 08-14-2012, 11:04 PM   #77
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That's just not enough. Who cares though, your so close to the ground when they fail it'll be an easy fix.

Tham

Are the hurricane ties in lieu of solid blocking? That deck is pretty damn long. Way too big for the all thread/bolts.

Last edited by Tham; 08-14-2012 at 11:09 PM.
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Old 08-14-2012, 11:31 PM   #78
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The hurricane ties are to secure to the beams + there is a row of blocking all the way across (21 ft span).

What's not enough? Each thread/bolt holds a max of 1800lbs...there's 7 of them.

7 x 1800 = 12,600lbs max you would need over 13000 lbs to rip those threads.... Those are the ratings on it.

Or do you mean not enough concrete?
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Old 08-14-2012, 11:37 PM   #79
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No, the bolts. Good luck, I guess you've done the math. Keep us posted though, we all learn everyday.

Tham
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Old 08-14-2012, 11:57 PM   #80
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ya cause those simpson threaded rod adjustable saddles are only 1/2 inch while these are 5/8. Mine can support 40% more weight than those ones that home depot sells.
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Old 08-15-2012, 12:06 AM   #81
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Originally Posted by sannitig View Post
ya cause those simpson threaded rod adjustable saddles are only 1/2 inch while these are 5/8. Mine can support 40% more weight than those ones that home depot sells.
Did you happen to read the MAX height of the threaded rod? 2.5", and the one I'm looking at on their website has 5/8" rod. BTW all allthread is not created equal, much like graded bolts there is a difference.

And I calc'd a section of your deck before and found a 1,900# load on one of your piers so you're already over.
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Old 08-15-2012, 01:39 AM   #82
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Did you happen to read the MAX height of the threaded rod? 2.5", and the one I'm looking at on their website has 5/8" rod. BTW all allthread is not created equal, much like graded bolts there is a difference.

And I calc'd a section of your deck before and found a 1,900# load on one of your piers so you're already over.
The 2.5" is so that the saddles are placed no less than 12" into the concrete as this is their design. My rods are 25" inches into the concrete.

I will be contacting Brafasco tomorrow to get the grade rating of my course-thread stainless steel rods.

What really concerns me is that you said you've found an overload point. please tell me where you have found that.
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Old 08-15-2012, 01:49 AM   #83
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Originally Posted by sannitig View Post
The 2.5" is so that the saddles are placed no less than 12" into the concrete as this is their design. My rods are 25" inches into the concrete.

I will be contacting Brafasco tomorrow to get the grade rating of my course-thread stainless steel rods.

What really concerns me is that you said you've found an overload point. please tell me where you have found that.
Look back through, I'm sure I posted it, maybe if you read everything posted. You probably didn't calc your piers correct.
And NO it has nothing to do with depth of embedment into concrete, that is covered elsewhere, it has to do with lateral strength.
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Old 08-15-2012, 09:46 PM   #84
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The threaded rod has little stength to a side load. But it probably needs only little strength to a side load. And the diameter of that concrete pier looks rather small. But my guess is that in 15 years, the 5/8 rod will be the part that held up best (better than the wood). Would have looked a lot more appropriate if that were 1-1/4" rod rather than 5/8".
The only thing I don't see is, what keeps the single nut from backing off?
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Old 08-15-2012, 10:11 PM   #85
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what keeps the single nut from backing off
that's a good question because vibration from people walking will losen those nuts without much difficulty, perhaps a year or two. putting 2 threaded bolts is no good as that is what my friend had and they both loosened. i posted earlier about using threadloc made by loctite. i don't know if this works or not because it has only been applied for 4 months now (with success) but i am waiting for a year before deciding if it worked or not.

Knucklez

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