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Did this exact setup at my old house 10 years ago, which my brother still lives in. Zero issues so far! Frost line should be measured from whatever the outmost protective surface is, which will obviously change throughout the structure. What we did was as follows: A) heat-trace the drain at the...

Most types of bricks are brittle. My money is on someone hit it at some point (maybe early on during mortar curing period) and the crack resulted. The chip in the brick below is primarily what I'm basing my speculations off of. Though could be from swell as KootK mentioned. In any case, almost...

Hand chip the upper 6" - 12" of the column with 15lb pneumatics, and then use a metal cut off wheel on the quick cut to sever the bars. Do as you please after that. I agree a hoe ram is likely to cause damage to whatever structure remains. That's why we restrict their use around vertical...

For what it's worth I've used aluma beams in the reverse orientation. Details in the following thread: https://www.eng-tips.com/viewthread.cfm?qid=485703

IRC is not my code but a footing in the context of insulated slab-on-grade construction is a new one for me. Even if your entire base was concrete it wouldn't be a footing, but we use concrete for footings all the time, right? It's not about the material. But I see what you're trying to do now...

I'm a tad confused since there is no footing in insulated slab-on-grade construction (regardless of sub-base or surrounding soil materials). But if you mean to ask if granular materials may be used as a sub-base for an insulated slab-on-grade home the answer is most assuredly yes. We do so all...

When we're on T&M our rates are as follows (Ontario, Canada): Senior Engineer (me): $190 CND / Hour Welding Engineer (brother): $395 CND / Hour On the engineering side I mostly do designs for our own purposes (as a contractor) or as a temporary works engineer for outside contractors. My...

Ditto what CANPRO said for the steel side of things. I can barely RFI anything these days with the required drawing turnaround by the GC. So to make timelines we do most things in the shop drawings unless things are so uncertain that I cannot proceed without clarification. I bubble / make bold...

100% agree with you canwesteng. But as you say there must have been something terribly wrong for the corporate lawyer to file a statement of defense leading with "Match admits to under design of the transfer slab and certain elements, including columns, and supports..." As in not even remotely...

I’m a professor at a trade college where we have a mix of PhDs and folks with experience (I’m in the latter category). We’re also attached to a research university. Unfortunately, here’s the current landscape: Enrollments are down and funding has not increased. Teaching spots are primarily...

I used to live in underground parking garages all around Ontario. Here's our local account: Epoxy was the go-to for top matt steel for a long while (bottom steel remained black though sometimes both matts were full epoxy). But a few things have happened and slowly the industry has moved away...

Oh, well that's sad. This is one of those cases where to perform a proper analysis you'd likely be charging more than it would take to design and build some sort of sub-structure. Don't forget you'd have to evaluate the wood too, which as Ed pointed out has its own peculiarities. You should also...

You see...it's easier for me to say from afar what to do. Didnt say I would know how to do it! Ideally we get a test from every type of member but based on the pictures it looks like the webs are out unless we have some spares kicking around. So as a first go (more may be needed later) I would...

Just to throw this out there but if this is a situation where exact material properties need to be known rather than general ballparks (e.g., analysis shows could be real close) then you need to do a few coupon tests of the material in-situ. This is also really cool. Thanks for posting the...

XR250: I don't worry about that at all. The corporation makes the guarantee and that does not extend to me personally. If I stop carrying insurance it's because I'm out of business so it doesn't matter (if something goes horribly wrong I'm personally liable but that's a different issue). The...

Interesting on the design-build front. My situation is rather different since I am also the contractor so when I do design-build they mostly to go exceedingly well. I don't think I would do a design-build (as an engineer only) for another contractor unless I was highly confident in their...

I’m finding it harder and harder to operate as a contractor. The field is just saturated with people who lucked their way into finding enough quarters for a down payment on a back-hoe and have been rolling along ever since. I'm trying to steer us towards a design-build because of that but those...

It's not possible to give you the assurance you're looking for with the schematic you posted. It's not entirely clear what is being supported by these members or why you have CATNIC lintel for support 2. From a bit of googling seems like a pre-insulated steel member which suggests this is at the...

I have new medication that is started to significantly effect me today so this may be totally baffed. But IIRC they both apply in the usual way but you have additional provisions in S16 - (CL 19) Built Up Members. The separation between tension/compression members would just be applied the...

Here's a slide from a connections course I took a few years back. This course was in the context of the Canadian market but should be applicable to NA generally. For those unfamiliar with Canada we only have Limit States Design (same as your LRFD) so ASD vs LRFD is not usually a thing here in...