New building. The inspector is saying the elevated slab is just barely out of spec for floor flatness and floor levelness. Is there any reason why the architect should be forwarding this issue to the structural engineer? Never have heard of this problem on any project before.
I'd think as...
Longspan roof deck on longspan roof joists. The profile of the roof required the deck to slope perpindicular to the joist.
Is the deck required to sit flat on the joist? All i see is a 1 1/2" bearing length requirement just to prevent slip off.
Should the joist be rotated about it's long...
I have a steel beam with a wood 2x nailer to allow roof truss attachment. The nailer must be fire treated. How do you prevent the corrosion of structural steel? Are there any products out there that isolate the steel from the treated wood?
What are the rules about Component and Cladding wind pressures when designing a single family residence? I'm designing the MWFRS per IBC pressures, but do I return to the IRC for the component and cladding pressures? IRC is showing fastest mile wind speeds and its not clear how to direct the...
A plumbing leak caused the contractor to cut out a 5'x5' section in the newly poured 4" slab on grade. Non PT. Just WWF. Light loading. They had to dig down and refill the subgrade after the patch.
I just want to see if anyone has any recommendations for a repair product or procedure...
Can you use LSL lumber in the US? All of trussjoists literature have canadian symbols at the bottom and it seems like it's only for Canadians? Is this true?
I am looking into using gyp sheathed shear walls for an interior shearwall on a two story house. Design is per IBC where wind controls. Not seismic. Placed on walls that will never be removed. I know where to get the shear values, and how to design it, etc. I just want opinions about why not...
I'm designing a 33'tall x 180'long glass storefront wall. Mullions every 5' or so. 90mph wind zone. The design/build contractor opted to have the structural engineer design the steel backup support for the curtainwall and have the main steel fabricator provide it. This is instead of the...
New to IRC and am struggling to understand why a developer is requiring a PE stamp for the design of multifamily homes. We're talking about typical two two story units, back to back separated by a party wall, totaling 4000sq ft....a whole neighborhood full of them. This is located in the...
I am new to the IRC, looking at designing single family residences, and am trying to figure out what is required for exterior sheathing and lateral load resisting system. The builder wants to sheath the entire exterior skin of the house in 15/32" OSB Sheathing. Method 3, specifically...
Since you're typically designing for the full yield capacity of the lug, would you need a complete joint penetration weld? Or can a smaller weld create a force couple without creating stress concentrations that would yield the lug material?
What are the general rules about embedding conduit in composite deck / composite beam slabs? I see nothing that says yay or nay and only calculations of the composite action on every beam and deck span seems to be the answer.
The electricions who did this claim that it is very normal to...
Is there any literature out there that address conduit or pipe embedded in composite concrete slabs? Electricans here argue that they do it all the time, but I'd like to get something in writing to prove them wrong.
Just looking for a rule of thumb for a typical 100psf corridor commercial application. What is the minimum concrete thickness above the deck you like to use? When there's only 2" of concrete above the flutes I kinda get worried because I've been told by other engineers not to go below 2 1/2"...
Has anyone ever dealt with the term "mill order set"? Due to steel mills going onto allocation, this type of set is becoming more and more common with fast track design, and I'm wondering how you deal with in terms of liability when steel sizes change due to the normal course of design.
My...
I'll be taking my StructI exam in October and have no experience in bridge design, nor does my firm do it. What would you recommend me do? Skip all the AASHTO questions? Shell out $200+ for a manual? Just wondering how critical its going to be. All the PE's here havent taken an exam in...
Does anyone know limitations of using fire treated plywood as non structrual sheathing on a roof?
An architect is saying he needs to use plywood on top of my structural metal deck/metal trusses in order to fasten his roofing. He says the sheathing must be fire treated. I've never used a...
Anyone have any pointers for modifying precast wall panels? Specifically, what if someone wanted to put a window into an existing wall? I'm thinking it shouldn't be done because its an engineered system.
Are there any design guides out there for swimming pool structural design? It doesnt look like any references exist and the only way to learn is by knowing someone who has already designed one.
