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Old 11-08-2011, 01:28 PM   #61
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Acceptable footing/foundation dimensions deviations


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Originally Posted by James58 View Post
Yes, when you depress the bolt, there can be a 1/4" depression around the bolt shaft. I usually just smooth it by finger. Its never been an issue. To each his own, i guess.
That's the point. It's not "to each, his own". In much of my work there are volumes of exacting specifications and requirements that the Government checks you very carefully on. And if you are not right, the whole task can be required to be done all over again.

I have done some concrete pours that required temperature sensors placed into the concrete (and left there) in dozens of places to record on an electronic monitoring graph, the curing temperatures over a 24 hour period.

There's a whole world of very serious building going on out there.

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Old 11-08-2011, 01:38 PM   #62
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Acceptable footing/foundation dimensions deviations


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Do you actually do this? Must be fun vibrating, and troweling off.

It takes 5 min to set anchor bolts. If the mud is the right consistency (just wait) the bolts don't sink, and because you are a carpenter, an 1/8th inch of perfection is second nature to your hand and eye.
It's obvious that building techniques are different in your part of the country....that would not work here. Part of the problem is that trying to shove a 16" long L bolt down into the concrete and not hit the rebar is going to be tough....good luck pushing an SSTB or SB 1x30 down into wet concrete....and missing the rebar. In other words, not going to happen.

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On big stuff like multi-family, commercial and industrial, as well as high siesmic areas, you gotta get the anchor bolts where lay-out and engineering says they go. It's really quite common to have to place them on top of the forms, and to be inspected prior to pour
Yep....pretty much how mine went. Using the drawings, I marked on the form where each one went....then used wire or wood to hold them in place. For the standard anchor bolts, I used those blue holders that you nail to the side of the form. But at a buck each....I ended up using wood for a lot of them. That actually made it easier to set the height....

In real terms...the hold down bolts need to be within about 1/4" of target, otherwise, you are going to have issues with the hold down. On those hold down bolts that go up through my sub floor....I have a lot more wiggle room....a sledge hammer works just fine for adjusting.
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Old 11-08-2011, 01:49 PM   #63
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Acceptable footing/foundation dimensions deviations


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I've been on jobs where we had 900 anchor bolts
Right, that's a good point. Try setting that by hand
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Old 11-08-2011, 01:55 PM   #64
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Acceptable footing/foundation dimensions deviations


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There's a whole world of very serious building going on out there.
Well of course, but i am talking about residential SFD, not the Parliament buildings lol. I've never built anything i didn't take seriously. As a framing carpenter you are responsible for holding up the roof. That always seemed dead serious to me.
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Old 11-08-2011, 02:08 PM   #65
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Acceptable footing/foundation dimensions deviations


What about placing Simpson mudsill straps and the such in the concrete?

How would one run anchors or "j-bolts" in the slab of an ICF home?
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Old 11-08-2011, 05:02 PM   #66
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Acceptable footing/foundation dimensions deviations


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Originally Posted by JackOfAllTrades View Post
What about placing Simpson mudsill straps and the such in the concrete?

How would one run anchors or "j-bolts" in the slab of an ICF home?
As per the manufacturer, engineers or equivalents detail

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