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Can dome one give me a hint on how to handle a large opening in a wood diaphragm. See attached sketch,http://files.engineering.com/getfile.aspx?folder=a12ccfd1-ab7d-4717-91c0-54851b2f46f6&file=opening_in_flor_diaphragm.pdf

The attached sketch indicates what we mean by a coot age roof. It is of calked ( incorrectly) a hip roof.http://files.engineering.com/getfile.aspx?folder=842b176c-b36f-4f27-9f32-aeb728cf2c54&file=cottage_roof.pdf

Yes There are 2 hip rafters at each end of a cottage roof.

Could someone tell mw if there is any change needed to the normal procedure to design the roof diaphragm to a cottage style roof. I'm thinking not but not certain. The building would ne 62 x 110. Thanks kindly

Thanks to all for taking the time to put your thoughts to paper. It gives me some ammunition to form my rebuttals. Much appreciated. Rittz

My client who is also the owner-contractor has requested that no reinforcing be specified in the 4” sab in a residential 4-plex we are designing. (a first for me). Any comments about that?

I have not seen a residential building that used rafters and ceiling joists for a few years . Light frame trusses are used almost exclusively here in Western Canada , Much easier to install, and cost effective. No thrust to worry about either.

When I prepare a quote for specified engineering services (commercial or residential buildings) I give a good deal of thought to the degree risk exposure I feel I’m getting in to if I get the job. Are any of us ever completely confident that the project will be completed without any gaffs? BTW...

We are designing a foundation for a hopper bottom grain bin. It is supported on 20 individual legs on cast in place concrete piles (no slab). How would you treat the grain in terms of load factors in ultimate limit state design? Bin diam. 27’ Ht 38’ capacity 17,500 bus (1086 kips.). The piles...

Thanks for that sliderule. I appreciate your reply. I can print the text nut the diagrams won't come ... not even with screen shot. BTW I took all my training in engineering college using a slid rule. No such thing as computers then LOL J

Attached are a couple of pages from I piece I found in my files. Other pages are apparently misplaced. I wonder if anybody recognizes the source of the document and could tell me where to obtain a copy. Also I wonder if anybody could suggest another source of possibly r a more friendly piece for...

I am trying to upload a pdf of a drawing off the desktop as an attachment to a post. I have done this a few times before. What am I doing wrong now? -confused !

That's the first sign Mike.

Yes I am quite well of that. I'm rapidly becoming one myself

I have a 1957 issue 5the edition of AISC Which Dominion Bridge gave out while I was in college ,,,, 4th Year.. It may be out dated LOL

The proposed car was is actually an addition to a large pr-eng building. Which extends beyond the proposed building at both ends and is higher The frames in the steel building are 12’ oc .Would a brace of some sort from the existing frames be doable? Or sensible? The ceiling of the...

The client wants to build a frame building for a car wash. Length 60,’ width 16, height 15’. Needs a door in each end 12’ wide and 14’ high, that leaves 2‘ on each side available for shear wall!! Wind load 15 psf. Pretty large shear. This appears to be a challenge. Any comments?

we used saw-cut pattern 20x20 25 y years ago. We have joined the crowd that uses 10 x10 squares. AND Cut as soon as possible (soft cut

My client wishes to build a 1500 ft bungalow house on land about 400 feet from a railway track. The speed past the area would be approximately “highway speed” 3 or 4 times per day. The hose will have a full 8ft preserved wood foundation on a concrete strip footing based abut 5 ft. below grade...

Maryland I love your frost line !! Try 66" .... -25C here today! !