Would anyone ever consider framing a new roof on top of an existing PEMB? I have someone who has adjacent pre-engineered metal buildings and wants to frame a new roof between them to get rid of the valley. Reasons to not do it:
1. Expansion/Contraction. Tying 2 buildings together with framing...
Does anyone have any info on the structural cost increases to projects conforming to the new federal "Build America Buy America Act"? Or any recent articles where this is addressed?
For those of you familiar with coastal flood design, I have a small project where an Owner wants to build an attached garage to an existing home in Flood Zone AE. The existing home was built prior to the most recent FIRM and the FFE of the home is at 13' and the BFE is at 18'.
The building...
Can drywall studs which are non-structural/non-load bearing be used in tension. Specifically these studs:
https://www.clarkdietrich.com/products/prostud-drywall-framing-system#description
I have a project where a contractor has hung very large sections of wall from the roof deck. The work is...
For current IBC Load Combinations for Aluminum Bleachers, do Horizontal Sway and Wind Occur at the same time? Isn't Horizontal Sway due to people (live load) in the stands and you wouldn't have people in the stands during a Hurricane???
If anyone has ICC 300 and could provide the Service Load...
Does anyone know who would have manufactured this system from the attached photos?
Building was constructed in the late 80s to early 90s
System is some type of PEMB braced system...there were no moment frames...one direction of the building was braced and the other direction of the building...
Does anyone know if the Gust Wind Speeds indicated in table C26.5-2 are ASCE 7-10 Ultimate Design Wind Speeds (Vult) or ASEC 7-10 Nominal Design Wind Speeds (Vasd)?
I always thought that this was an error in the printing (I have 2nd edition ASCE7-10), but have not seen anything in the errata on...
Does anyone know the typical lifespan of a PEMB constructed in the 1970's? Any backup documents on this?
I'm doing an inspection on a PEMB constructed in the early 1970's in a coastal area that has quite a bit of corrosion of the metal panel walls, metal panel roof, etc. I think it needs to...
As the title implies, I have an old PEMB that has experienced significant settlement in the last 2 bays due to expansive soils. The owner doesn't have the money to rebuild and I've considered suggesting he demo the last 2 bays and creating a new end wall on the remaining building. Does anyone...
I contacted a local "PEMB Engineer" today to ask if they include differential settlement in their design calculations. I practice in an area with highly expansive soils and shallow foundations frequently exhibit differential movement vertically between the columns.
He stated that horizontal...
As the title implies, what are the advantages and disadvantages of a DBE?
I'm currently a small structural firm in the U.S. and have entertained the idea of bringing in a partner (a minority) who would have 51% of the business. On some large projects (Federal Government, State DOT, Large...
Please see attached sketches. For those of you that have experience with cantilevered composite framing, is it common to have a Joint at the cantilever to reduce cracking in the slab? I typically don't use Joints in elevated slabs, but I typically use bar joist framing.
Do you see any issues...
What are the typical ratios for Engineers/Draftsmen for firms that do commercial building work in Revit? Prior to Revit, the firms I worked for kept a ratio of about 1 Engineer to 1.5 Draftman in AutoCAD. It appears small firms these days are not hiring as many draftsmen and and letting their...
If any of you have experience with calculating forces in cables, I'd appreciate your input on my attached calculations.
I have received calculations from a Contractors sub for the tensions and sag in a backstop netting system at a baseball field. The system consists of poles supporting the net...
I have a client that wants to use a detail as in the attached sketch for an exposed, exterior load bearing cmu wall. He has a 12" block transitioning to an 8" block with a sill block that is 6" wide (nominal dimensions). He is showing a 6" wide CMU block adjacent to the 6" wide sill block.
It...
Can anyone recommend a good (economical) concrete program for the analysis (Gravity and Lateral) for a small concrete stadium? Could Ram Elements handle this? It will be a Ordinary Concrete Moment frame in SDC=B...I don't think Ram Elements allows rigid diaphragm analysis for sloping...
I am a structural engineer and was wondering if I can get some advice from one of you MEs.
I have an old house...like 100+ years old...it is 1 story, on a crawlspace with the HVAC unit in the attic. At some point HVAC was installed and the return was created from an old closet.
When we bought...
Has anyone used 1.5B roof decking as a stand alone roof system? I have a fuel island canopy and was thinking about using 20Ga 1.5B with Teks at the supports and sidelaps and maybe specifying some rubber washers on the teks so it won't leak?
Anyone have any ideas on this?
Thank you!
I'm designing a gas station canopy for an architect in a high wind region and need some help on attaching the diaphragm. It appears from other plans I've looked at, that the diaphragm is typically on the bottom of the structural steel and attached with C-Clamps? Does anyone know where I can...
