I work at an A/E firm and it usually comes up once or twice a year that some architect wants to make a PEMB fancy by making an odd column layout, cladding it with brick, adding mezzanines, adding cantilevers, and using odd roof pitches. For example, an architect came to me today wanting to know...
Interesting question came up today. Have a 3" diameter solid dowel pin connecting two elements that have 200 kip axial load in them. The fabricator is asking wether or not steel A4150 is acceptable. Has anyone ever heard of this stuff and/or run into a similar situation? How do you evaluate...
I'm looking at a 10" diameter tower crane tieback with an in line adjuster composed of a 4" diameter threaded rod that screws into 3" thick end plates. So the tieback looks like this:
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The -'s represent the threaded rod
This rod will therefore take all of the 200kip of...
Has anyone ever purchased, Architect and Engineer Liability: Claims Against Design Professionals, Author Kevin R Sido? It looks like a decent book from the flyer I received. It's $300 though...
Who is ultimately responsibile for the durability and strength of concrete? Just the material itself, not the design of reinforced beams slabs etc. Typically, a concrete supplier puts together a mix design and submits it to the engineer per ACI procedures for approval. I have a contractor...
I've never really run into anything saying when it's better to use joist girders vs just using a wide flange section. Just for simple roof framing. I feel joist girders should really only be used when you can use a large amount of them to gain the economy. For small structures, I think wide...
I'm taking the SE I this april and am wondering if any of you use any sort of published design guide for steel design. I have my text books from college and obviously the LRFD but it feels like these just arent efficient for use on this exam even if they're all tabbed out. Going at 6min per...
I am looking for references of the design of ground supported tower cranes in the US. Having trouble determining what codes apply and if there are any design guides.
I always see glulam's being used in roof systems but never for floor systems. It's a straightforward design in the NDS, but I'm not sure how the most efficient framing is typically laid out. Does anyone know of case studies for using glulams in a floor system? It will be an exposed structure...
