Hello,
Question for people who have done projects in the BC Interior (Canada); I involved with a project and our GC has informed us that they cannot source HS cement (S-2 Classification) as no concrete suppliers keep HS Cement in the area - opting for a high fly ash content mix.
There are...
Good Morning,
I have a steel stud shearwall system with diagonal strapping being welded to a solid top track; I would like to use a slotted top track to allow for deflection in the roof and transmitting forces between the shearwall and the diaphragm. Does anyone have any product suggestions...
Hello All,
I have encountered a few structures which are racking back-and-fourth due to live loads (mostly pin-pin connection deck columns which were field built). I know many different ways of dealing with it structurally, but haven't found many resources for actually putting numbers to it...
Hello,
Quick ethics based question; I am working with a family member who needs some stamped certificates for a commercial renovation they are working on. I am not licensed in that province, so I was just going to do the work and give unstamped designs to him so he can run around and find a...
Hey All, long time no see.
Looking for an old sulphate table, wondering if anyone has the old CSA A23.1-M94 book collecting dust on the back shelf. If you do have it handy a quick scan of Table 10 would be greatly appreciated.
Just need to check if it is similar to the current 2014 / 2009...
Hello!
I have a quick question regarding standard subgrade prep work for a run of the mill asphalt parking pad. Rough backstory, a family member is running a commercial reno project & is installing a new parking surface over what was previously greenspace. I do not have a stamp in his...
I just finished analyzing a 6 panel modified queen truss (38' span, end bearing) and just looking for advice on anything I may have missed.
1970s built truss on an anchorage acreage, early 2000s a reno was completed which moved the bearing point 9' (leaving a freaking 9 ft cantilever) in from...
Hi,
I have a homeowner who is looking for signoff on a job post-work.
-Off the shelf steel post supporting a roof beam, interior application (lean-too shed off the side of his home)
-Steel post is in the wall framing (for some unknown reason he just wants a steel post even though a 3ply 2x6...
Hello All,
I'm flipping through the shiny new 2014 Canadian Building Code books that showed up (finally...) and noticed that all houses need to have roughins for radon venting installed now.
Is this a detail that you would typically specify, or is this going to fall into the architects...
Hey everyone,
I'm wondering how you account for loading at tall, interior party walls for residential construction.
By Canadian code all party walls must be able to take 10psf without structural failure of the wall or any supporting members (ULS), this accounts for fire fighting equipment (ie...
Now this is some solid (rimshot) engineering!
https://www.youtube.com/watch?v=jPtM3dBGQck
Still a visually appealing design - form meets function perfectly.
Hello,
Quick question on which set of deflection limits apply in certain situations. This isn't a structural issue, but it is a serviceability issue.
I have a house where a 2'-0" cantilever (21'-0" span) was built by extending 2 parallel beams (21'-0" apart) over the cant and then installing...
Hello,
I am doing a retaining wall that is 4'-0" offset from the nearby house (concrete cant retaining wall running parallel to a regular poured foundation wall)
I plan on extending the retaining wall footing out and do a combined strip footing, using the dead weight of the house foundation...
Hello,
I have been tasked with designing a set of wind girders to transfer high wind forces for residential tall walls under a gable end roof. The system consists of:
38'-0" long parallel chord truss (46" deep) with 7 panels, designed it as a pratt truss out with MSR chords and spf no.2 webs...
This isn't really a structural question, but about 10 minutes ago I noticed my monitor trying to walk around my desk.
Went out back and they are running a sheepsfoot out to compact the laneway now that a lot of the frost has come out. Anyone experienced anything like this before? It is just a...
Hello!
I am set up a series of standard drawings for our shop rebar & stud spacing details. I use LT2014.
What I would like to accomplish is:
-Designer inputs stud spacing, and rebar spacing into a table (ex. '10M rebar @ 12" o/c')
-A leader in another part of the drawing has text...
Hello,
I have a funky beam that I have been tasked at checking, it is a 3Ply 1.75" x 14" 2.0E LVL where the contractor went ahead and bolted a steel plate to each side.
The LVL alone can handle moment & shear requirements but doesn't quite cut it for defl'n. I checked the deflection through...
Hello, quick question that (hopefully) has an easy answer:
I am finishing my details for a small (38' x 20') slab on grade for a community garbage collection site.
6.5" thick slab, 15M @ 6" o/c designed for 110psi contact pressure per tire from a tandem axle garbage collector (85,000 max GVW)...
Hi All,
I have done a cursory internet search on design properties & cost per sq ft for cross laminated timber and came up relatively dry. It is a material I haven't worked with at all (residential world woes), and have a concept house I have been working on with an architect that I think it...
