Yep, I can provide the sheathing in lieu of the truss diagonals, was just surprised their drawings and response indicate is is fine as a drag truss with just the verticals, top & bottom chord.
Reviewing a shop drawing for a drag truss that I specified at the gable end. Therefore it has the verticals, but I am accustomed to seeing diagonals as well to transfer the horizontal component, otherwise assuming the verticals as two force members, all the horizontal load has to go through the...
The Wight and MacGregor concrete book gives a really good explanation on the direction of hooks in chapter 17, Section 17-12, not directly in regards to retaining wall, but with regard to Beam-Column Joints. It goes into opening and closing corner joints, and (it does reference retaining walls...
I agree about leaving the window since everything is transferring in shear to the concrete through the drag, but the vertical chord holdown above this header (from the left side of the perforated) would need to transfer to the header and then have a holdown on either side of the header that goes...
I understand what you mean when you say he used enercalc to design the concrete column. I usually use spcolumn for the same purpose, essentially to build the PM diagram for the column. Most concrete texts will go through the process for this by hand.
What I don't follow though is the use of...
Agree pretty much with what Kootk wrote.
Similar to what you wrote above about the transfer of forces, I've always thought of the reinforcement keeping the chunk of concrete from pulling out because it is crossing the potential concrete failure surface and developing above and below. This...
I've been working through some retaining wall details for a project that requires a condition with a footing without a toe and a footing without a heel. I'm curious on how others detail the wall to footing joint.
For a T-shaped footing, I typically detail per the CRSI manual, developing the...
In a building with metal stud exterior non-bearing walls I've always provided either a slotted drift track (vertical slots in the flange, horizontal slots in the web) to accommodate beam deflection and in plane drift or a nested track assembly. For a building with exterior, non-bearing wood...
Thanks for the responses, the roof is an existing cedar shake roof that they intend to leave in place with no plywood so I can't assume that the roof acts as a folded plate. Definitely going to design a new structural ridge, just wanted to get input on what others use for an absolute deflection...
I have a project with an existing ridge board and rafter ties, where the client wants to cut out the ceiling/rafter ties to vault the ceiling. The plan is to install a ridge beam that spans approximately 30 ft to support the existing roof. I'm just wondering if anybody typically limits the...
I agree with JAE's summary you always use the reference standard as referenced in the code. I had some long term projects that were still using outdated referenced standards by the time they finished construction. But you wouldn't want to suddenly jump forward in referenced standards, could...
I'm designing a wood infill wall in an existing masonry building opening. I was going to detail the top to accomodate deflection via a metal slip track (similar to metal studs, not sure how common this is), do most people leave a gap the sides of the wall as well, or just detail the wood tight...
I have a couple questions on a project I am working on, looking to get some feedback on a some options.
1) I am designing a new opening that is being cut in an existing wall. The door is approximately 12' wide by 14'-6" tall, the 14'-6" being the top of arch with a 3' rise. Looking at options...
I am designing a residential foundation on potentially expansive soils. The geotech report gives recommendations for conventional continuous and spread footings, and also gives a differential deflection value of 1" in 30 ft. Is the typical method of analysis for this condition to compute the...
Does anyone have any information on Inryco 3"W22 metal deck. I'm working on an existing project from 1982 that specifies this and I can't find any reports or literature available online for this deck type. I also tried calling Inland Buildings, but it is a totally different company now and I...
Thanks for the reply, I've more done gobs of steel and concrete rather than wood so it helps to get some extra perspective.
My inclination is to do what you suggested, to me it would be akin to the break in the panel joints as long as the interconnection between the last post and the boundary...
I'm looking at the detailing for an interior wood shear wall at a t-intersection with the exterior wall. The typical detail is the California framed intersection but that doesn't allow the sheathing to continue through. I'd like to bury my boundary post in the exterior wall and then continue...
