having the storage closet is good for recommending to clients. I'm interested in hearing more about the tree KootK was talking about, if that was a real life scenario (not totally implausible, but understand if you were trying to make an exaggerated point)!!
Thanks retired13! Really good insight.
After doing a load takedown, I'm not sure how the foundations and columns were designed if live load reduction was not used. Everything appears to be well over stressed if live load reduction is not considered.
Scenario:
I'm analyzing an existing structure that is a 3-story high-end fitness club. For example, the club has a pool area on the lower level, and has squash courts, one full size basketball court (no seating), large open areas for various lifting equipment on the upper floors. Drawings...
In this particular case, the landlord was directly asking the tenant, who also happens to be a law firm, to submit signed and sealed structural calculations stating the furniture would not "fly off the roof" and was adequately anchored to the roof. As a landlord, their primary concern is an...
What is the best way to calculate suction forces on rooftop furniture? For example, 18th floor of a high rise building (250 feet high), they want to put a roof paver system and outside deck furniture consisting of aluminum chairs and tables, lounge style sofas and a bar. If you use the ASCE7...
I'm a young structural engineer and I get alot of oddball projects. Latest project is providing support for a rather large, 6'-0" tall x 10'-0" wide cross section, ductwork running along the roof, with the bottom of the duct being approximately 3'-0" from the finished roof surface. The project...
I am looking at existing structural drawings for a building in Maryland and they indicate 8L36 Lin Tees. Not knowing what they were, I discovered that Lin Tees are single Tee precast concrete planks, similar to double tees today, only that they are single tees, developed by a guy with the last...
Does anyone know where I can find manufacturers that produce Z purlins (Dietrich or Marino Ware?)? Additionally, I'm looking for Z purlin section properties and potential load/span tables.
Thanks for anyone's help.
bridgebuster, you're sketch is correct, except the channel toe's point towards each other. The column details also show 2-1/2" wide by 5/16" bars used for the lattice work connecting the two independent channels. I did not find any notation on the drawings designating the strength and/or...
If anyone can help, I am looking for properties of a specific channel. The drawings I am working with are from 1901. Yes 1901. An extremely long time ago. Drawings are in great shape nonetheless. Anyway, the drawings denote a built-up column made using (2) channels laced together and they...
I have a project where the client is changing two bays of the structure from a typical office live load occupancy to an area being used for high density filing of 125psf. I'm not overly shocked by this. The problem is that the steel has already been fabricated and I now need to reinforce the...
This is my first post, so bear with me. I was out on a survey last week and came across a very unfamiliar type of open web steel bar joist. The bottom chord looks like back to back steel angles, but upon closer inspection, it is one continuous piece of steel as if the vertical legs of an angle...