Search results for query: *

@ Dave... /Facepalm. I was just looking at that. Now the note that describes interpolation, as it referes to percentage, what do people typically do, take the full length of wall ... count up grouted and ungrouted cells, and do the division and interpolation from there. Or is there a...

Everybody, Greetings. I'm looking for direction or a clue as to how I could find the prevailing compressive strength, f'm, of CMU during the 1940's and 1950's ... I'm greatfull for any help that can be given. Thanks, Scott Scott

When an unreinforced masonry wall goes from no grouting to partial grouting, the compressive stress from any axial load (live or dead), should go down, as An increases correct? In lieu of this, if I want to maximize my vertical compressive stress to offset tensile stress from flexure in the...

The application is for a floor mounted bridge crane, the loads are light, less than 2 kips axial, however, I do have biaxail moments of approx 4 foot kips. If this were to be modeled as a plate, would I put pins at the edges of the plate, and put the bolt tension and compression loads in their...

Hello everybody, I'm working on a job were I used a baseplate with leveling bolts and grout for a column in biaxial bending. My question is that the client now wants to go without using the grout. Is it possible to model this situation in RAM, or does anyone know of a good resouce for sizing...

The stability criteria is two fold - First - You don't want the beam to be able to rotate about its longitidunal axis. Second - Follows from the first, if the column was designed as fixed - pin, then we need to stiffen the top such that it performs as if there was a pin. Or thats at least...

I was studying this example not too long ago, and can someone please clarify the sizing the weld to the cap plate section. Where does the Ta/g and Ta/db+2b criteria come from? Does this some how account for the bending stress that would be in the weld from the tension force in the bolts...

Hello everybody, I have a wide flange beam end bearing atop a HSS column. The connection is transfering a moment, and has been checked for several of the criteria in section J10 and K. There isn't a need for stiffeners for strength purposes, but I read the code in section J10.7 to say that I...

I know the members do seem large, this is a blow up of a connection. What we have is joist framing LH40's @ 10'-0" on center, so they're pretty beefy joists. What we're doing is a year ago when we re-tooled this area of the plant, we added these joists and designed all sorts of header steel...

Don't forget to grab yourself an updated copy of the Factory Mutual criteria as they govern in several cases. Scott Shields Ghafari Associates, LLC

All, I love doing these as well, I'm currently working on a project where I'm evaluating 13 Ford Powertrain Plants in the Midwest & Mexico. All the above items are excellent, the only thing I didn't see was column damage, I know in these plants you'd think they played bumper cars w/ the...

Attached sketch for above post -- Scott Shields Ghafari Associates, LLC http://files.engineering.com/getfile.aspx?folder=c9b5d041-ebe0-4dbb-9cb2-02d1ee2702c6&file=GM_Anchor_Details.pdf

The circled connection on this HSS and the other connections in general -- I feel like these should just be everyday fillet welds, but I'm not sure and I was hoping for a second opinion, would a flare bevel be proper to use for the joist to tube weld, (I know I'm showing fillet). Also are...

Just a quick comment about modeling trusses in what appears to be RAM. They way I've always modeled a truss is to realease all but one member at each joint. You're releasing all the member at each joint. That may effect your results. Just something to think about. I'll attach a pdf of what...

http://files.engineering.com/getfile.aspx?folder=4e09a1b3-f36f-4dbb-995d-58be920cf153&file=model.pdf http://files.engineering.com/getfile.aspx?folder=8fdba846-863d-47cc-b61f-4ef67ecc7a7f&file=plan_-_elevation.pdf I attached a snapshot of our model, and I patched together some of my ACAD on...

I know that when I use RAM Structural System, we design the gravity framing first, using gravity loads only. Then enable the RAM Frame module. What I'm trying to say is that by the time I'm on my lateral analysis, the gravity design is pretty close to complete, save for any iteration coming...

The situation is a suspended platform at bottom chord level (approx 20' from finish floor elev.). The plat form has one of those industrial type ladders at the end of it, the problem is that the last eight feet of the ladder are retractable, such that the tube that supports the ladder doesn't...

Hello, I'm designing a pretty straight forward connection, a HSS 6x3 with a gusset plate (welded longitudinaly, (sp)). I'll have double angles bolted to the gusset. Reference AISC 13th, commentary, section J, page 16.1-366-368 -- My question, is a vertical brace w/ single plate gusset...

I've never even seen a slide rule.

Dave, I agree, I hated the hp33, the only reason I picked one up before was for the EIT.