Whats the ball park charge in fees for a residential project if you are making an allowance for multiple no. of inspections as you have mentioned?
From what I gather most New Zealand employees get paid in sunshine, rainbows, smiles and a few New Zealand DollaKiwis. (Which are less than $AUD, $CAD, or $USD.) But New Zealand is a fantastic and lovely place to live so that makes up for it!
The location of the shim sets the moment arm length. Shims at the outer edge of the compression side can be removed easier than the middle and provide a longer moment arm near where most people I know estimate the final/design arm location is on a baseplate subjected to rotation. Since you are trying to overcome some magnitude of applied moment, by a couple provided by the product of bolt tension force x distance to centroid of compression area, shortening the distance increases the force. Cutting the design distance in half doubles the force. It has to. Look at the video, The shim appears to be in the center. I agree, they are hard to remove, but I mean, they should not be in the middle to start with. This is the first one I have ever seen where it is in the middle. The presence of the shim in the center triggered these conclusions. This structure is always subject to rotation. If the connection is always in rotation, you do not even need a shim on the tension bolt side, you just need the nuts to be installed above the baseplate. Gravity loads are much less of a problem, but even those have distribution concerns since the shim is less deformable than the grout. In gravity only loading, the tension on the bolts is not affected by shims.
That is also why I asked, if we were correct in that conclusion. I use leveling nuts thus putting some bolts in compression temporarily, grout except at the leveling nuts, lower the leveling nuts when the grout cures and touch up the grout. I have never seen a shim in the middle of a baseplate on a moment baseplate and like you, I have seen many. Now, I have a lot of projects that I was not hired to do inspection of any kind.
Me believes it will all work itself out. I imagine shims are left in there more than you realize in all sorts of moment bases.
True, many I have looked at were not visible in the first place. Already grouted, or slab poured over them. I am just looking at the mechanics. I cannot control what a fabricator/installer does in course of their work. I have designed several monopole signs that are fixed base but have never been paid for site inspections. I have never put a note on my drawing addressing shims. As I stated, I tend to use temporary leveling nuts. Reversible moment connections are an even bigger issue, since there is no dominant direction. In this case, there is a dominant direction and 100% of the time, there is the presence of some degree of moment in one direction.
You got me there because everything will work itself out, one way or the other.
In your opinion, is there an error in my mechanics, as opposed to a difference in opinions of the long-term implications? Mechanically, I could use a shorter moment arm in my calcs and therefore allow for any difference. I just know where most people I know estimate the centroid of compression to be approximately.
Under full design loads, I imagine there will be enough deformation in the baseplate to make the moment arm as long as possible. But, yea, I think it is a valid concern - one that most would not consider.You got me there because everything will work itself out, one way or the other.
I agree, that is one of several reasonable and likely outcomes. I do not know about everyone else, but this deck is a first for me. Way too many "Ifs, Maybes and Whys" in both its design and construction. It does make us consider some things we have not seen or noted before. At least for me, it has. It's where I go from "There's a bathroom on the right" to "There's a bad moon on the rise" in some instances. The problem with that is it makes me backtrack in my head in relation to previous projects. The older I get, the farther I have to backtrack.
This is another reasonable and likely outcome in addition to the one XR250 noted. So, very quickly we have 2 reasonable outcomes. My main concern is not the concrete, it is the potential increase in tension load on anchor bolts that several have already expressed concerns on the embedment of. For me, it was more the location of the shim, than the mere presence of a shim.
Obviously this is going to be hugely dependent on the job but here is a ballpark:
Yes it's Goods and Servies Tax. It's a flat 15% tax applied to basically every single thing - we don't have the double down of state and federal taxes, nor are there variations between items: it's 15% on everything
It is a good idea to tell them up front. A friend of mine in construction includes the tax in his price. If they say "Go ahead" real fast, he adds "plus tax". If they don't say it fast, he tells them "but that includes tax". He is good at it. While it is not a GST, it is a sales tax on goods.
Balcony loading, 60 psf if they are lucky, water, 62.4 psf.
I think I hear Darwin getting excited...
