It is pretty nifty. We have used the consultant who has the equipment before for a similar type of evaluation, but never with a reduced material capacity given. It was usually to identify internal degradation that wasn't visible or identifiable from the outside. We used it to determine if the...
Hi All,
I am working on an existing building with about (100) 5.25x15 - 24F-V4 glulams. Many have deteriorated in one area due to a waterproofing issue. Many of the glulams have damage that is a bit of a grey area that visually and by sounding is not severe but there does seem to be some...
I have struggled with this quite a bit, but here are my 2 cents.
I do think you have to check both directions, but perhaps you know the controlling direction is transverse.
1. I have tried using the timber frame cantilever system concept, but have never been able to make it work for any...
I think between the studs I would consider it torsion and not cross-grained bending. However wood doesn't handle torsion very well so it might be considered equally bad.
I worked at a precast company 25 years ago doing design, so this probably is outdated info. However, we used coil rods a lot for final connections. The thread issue with concrete clogging up the embeds in typical threaded rods is real. Having said that, coil rod didn't (at that time) have the...
It seems like you don't have your boundary conditions drawn in for your ledger. You would have cross grain bending like you drew if the ledger was supported at the bottom only. A lot of ledgers to studs would have several connectors along its height that would resolve the tension force and...
The OP's question is one that I see a lot with deferred delegated designs.
On deferred submittals, quite often they consist of unsealed shop drawings and stamped calculations. I have reached out to the local building department to see how they handle this and what codes or other regulation...
Thanks for the responses.
I do agree that delegated designs can be messy. The main reason to exclude them from a proposal is how undefined they are at the time you have to give your proposal. I find a lot of times that stairways and guardrails become significantly more custom as the project...
We probably need to add exclusions as you do. We have had a general rule to state what we include, but not what we exclude. The idea was that once you state exclusions then everything else is included. I imagine it is a statement that excludes items but is not limited to only those items.
Sorry in advance for the long-winded question.
I do mostly structural design and this particular question is primarily to do with buildings. Sometimes these are elements detailed on other consultants' drawings with a note stating "See Structural Drawings". Some of them are items that may be...
Thanks for the responses. That commentary is interesting and helpful.
Here is the section from AWWA 2021 for vertical acceleration. The commentary in this document doesn't mention anything similar to what API 650 states.
13.5.4.3 Vertical design acceleration. The design of the tank and...
Hi All,
I'm working on a steel tank project and was comparing the vertical acceleration between D-100 (2011) and D-100 (2021). The Av went from 0.14*Sds to .48*Sds in that single code cycle for responses limited by buckling. Nearly a 350% increase. I may have missed something, but I checked...
That's a good point. We have a bit of a moving target when geotech reports are required. Sometimes a plan check comment will force the client to get one, when I didn't think it was absolutely necessary. Although, I do appreciate a geotech report for the most part.
Client agrees to hold Engineer harmless for work performed prior to approval of the building permit as well as work performed without obtaining and passing building department inspections or third-party special inspections, as applicable."
I like this idea, but I wonder how much hold harmless...
I always wonder what has been codified and adopted as law that allows building departments to force a scope of work on an engineer. This does happen where I work as well.
The adopted code that is in my jurisdiction is the IBC, and it does not specifically say the EOR has to do construction...
I don't think anyone is really advocating that. Pretty interesting article and at least in NZ it sounds like there is punishment for an engineer to work on un-permitted work. Lot's of acronyms as well.
A lot of good suggestions and things to think about.
Probably many of you know about this: https://www.nspe.org/resources/ethics/code-ethics
This is a pretty interesting one about the different cases that have come up regarding the issue...
My understanding is that breaching client confidentiality can only be done if it is a life safety issue. I really don't think that just not getting a permit rises to this level. Since I'm not going out to see the work, I won't know if they are doing anything wrong except not getting a permit.
