I'm back stateside and doing more roof and crawlspace inspections than usual. I'd like to formalize the site inspection hazard assessment paper trail and wonder if anyone can recommend a solution. I've developed various forms over the years but I'd like to circle back and see what is available...
What is your experience as to whether an EIFS system, in general, is repairable or not. For example, if the EIFS had to be stripped off down to the substrate (plywood/osb), could the substrate be prepared for reuse or would the substrate also need to be removed and replaced?
I am looking at a...
No injuries or deaths reported.
News story.
Volume warning: truckers swearing like sailors.
[youtube WAKso45nYtg]
Edit:
Adding location from Google Maps.
Also thank you waross for the correction. This is a pulp mill not a lumber mill.
I haven't found any mention of fatalities. Reported 20 injured.
Location
Collapse video
Bridge details
Photo of bridge system.
Edit: Updated dead video link. Thanks to JAE.
I've encountered these prestressed double T-beams (60ft span, ~36" deep legs) that have cracks at the bearing. They have experienced long-term water intrusion and corrosion of the bearing pads/embeds/reinforcement. There is also corrosion and spalling of the cast-in-place corbel and bearing...
Anybody have a lead on info for this legacy floor joist? It was found in a residence and I have never seen it before, neither can I find anything on it. The CCMC number doesn't seem to exist. They are glu-lams about 8-5/8"x1-3/4" at 19.2" spacing.
TIA
I'm looking at these wood I-joists in a residence and I can't find a manufacturer's stamp anywhere. I had thought that I-joists were only available as engineered components and/or with manufacturing marks.
Does anyone know if these could have been purchased as generic commodity components like...
The commentary for the NBC-Canada (G4.18, Roof Slope Factor, Cs) states that "Snow loads on a sloping surface act on the horizontal projection of the surface."
The NBC formula for snow load takes into account the slope of the roof through the Cs factor but it is not clear if this is only for...
The explosion apparently involved benzene. I don't know how much more information will eventually be released but there seems to be several videos of the incident. The facility is described as a fertilizer plant or a pesticide plant. There was a school less than a mile from the facility and over...
Hi all.
I'm learning SMath on the PC and I'm having trouble deleting an empty placeholder in a formula. I read that I should just be able to empty the contents of the placeholder and then shift-arrow over the blank placeholder and then back space, or double backspace, to delete it. I've tried...
Hi all.
I'm looking for some guidance on detailing the repair of an unreinforced masonry wall. I can't seem to find anything in the MDG or in the Concrete Repair Manuals. A direction to a resource would be appreciated.
Basically I'm looking at replacing a section of 16' high URM in a shop...
I've been looking for geotechnical PD and CEU options. It seems there is not nearly as much out there as there is for structural engineering. Any suggestions? I've found some lectures recently through GSI and informal presentations through the local geotechnical society.
TIA
Hi all. I have attached a photograph of some slab-on-grade cracks in a grid pattern. I have some ideas on cause but I wanted to poll the group. The slab is in an industrial shop and the photo was in the aisle for heavy axle loads. The documents are not very clear but seem to indicate a 5" slab...
Hi all,
I have a commercial building in the Yukon where a large water main break has probably disturbed the gravel base under/around the foundation. The building is a conventionally framed shop and from the drawings it looks like it has shallow thickened edge footings set on a deep gravel base...
I'm wondering if anyone has tried to reverse engineer an actual failure load for a wood screw loaded in shear or withdrawal using the NDS ASD design methodology. The problem is that the NDS doesn't seem to clearly indicate which factors are "safety" factors and which ones are simply to more...
I am reviewing some calculations for a cantilever landscape retaining wall. I would typically neglect the passive earth pressure in the overturning analysis but in this case the calculations show the entire active pressure being balanced by the passive soil pressure.
Can the passive pressure...
Hi all,
Has anyone ever heard of rebar dowels being installed by pounding them into a pre-drilled hole? Apparently this happens in precast tilt-up construction for the dowels at the base of the wall panels.
Hi all.
I am looking for some ideas to provide nominal shear transfer across the vertical joint between an old and new concrete foundation wall. In this case it is a full-height residential ICF wall (basement and main level). The damaged section will be cut out and the new wall poured/butted...
So anyway, I had been looking for the original manufacturer's load tables for the Truss Joist TJ/60 series open web composite truss. The 48 inch deep truss appears in a roof system built in 1980 and bears the Red Built RedS triangle stamp. The best I was finding was the PDF that others have...
