raltd9245 Posted September 15, 2017 Share Posted September 15, 2017 I was looking for Steel bar joist. Are they available in chief or do I have generate my own. I don't think Tecktum is a material either Link to comment Share on other sites More sharing options...
DRAWZILLA Posted September 15, 2017 Share Posted September 15, 2017 got a pic. do you mean wide flange? Link to comment Share on other sites More sharing options...
Alaskan_Son Posted September 16, 2017 Share Posted September 16, 2017 The problem with things like steel bar joists or any other open web type joist design is that the object would need to be entirely unique for each and every possible length, height, and even width configuration. Its not unlike a truss...There's no way a "truss" library object could really be used for anything except the one specific situation it was created for. The best I've been able to do with Chief was to create these type of joists myself using molding lines. Use a regular molding extrusion for the continuous horizontal pieces and then use 3D moldings for the non-continuous elements. The 3D molding parts need to be modified on a joist by joist basis. It's a little tedious but I think its currently about the best we can do. It would be nice if we had a parametric object to do this type of modeling or if the floor truss tool was somehow expanded to allow various extrusions other than just framing members. Link to comment Share on other sites More sharing options...
Kbird1 Posted September 16, 2017 Share Posted September 16, 2017 On 9/15/2017 at 8:53 AM, raltd9245 said: I was looking for Steel bar joist. Are they available in chief or do I have generate my own. I don't think Tecktum is a material either Not available in Chief AFAIK but there are a few on the 3D Warehouse you could import perhaps? but it would be pretty time consuming I'd think to do a whole project, might be easier to just make the material for the Chief Floor Truss 1" and Metal to get an auto-generated approximation... https://3dwarehouse.sketchup.com/model/f3b4a3d67d9e47f4bd0453f33162bdd5/Steel-Bar-Joist Link to comment Share on other sites More sharing options...
raltd9245 Posted September 16, 2017 Author Share Posted September 16, 2017 Thanks I already have downloaded. Link to comment Share on other sites More sharing options...
Dennis_Gavin Posted September 17, 2017 Share Posted September 17, 2017 curious about the reference to Tectum. I know Tectum as panels that have acoustical purposes and look like white shredded wheat. What is you reference? Link to comment Share on other sites More sharing options...
GeneDavis Posted September 17, 2017 Share Posted September 17, 2017 Look here. http://www.tectum.com/acoustical-roof-deck-panels.html Link to comment Share on other sites More sharing options...
Dennis_Gavin Posted September 17, 2017 Share Posted September 17, 2017 Yep - That's what I thought. Haven't heard anyone talk about those things in ages. Had them on my house in PA. Link to comment Share on other sites More sharing options...
raltd9245 Posted September 18, 2017 Author Share Posted September 18, 2017 On 9/16/2017 at 11:01 AM, Alaskan_Son said: The problem with things like steel bar joists or any other open web type joist design is that the object would need to be entirely unique for each and every possible length, height, and even width configuration. Its not unlike a truss...There's no way a "truss" library object could really be used for anything except the one specific situation it was created for. The best I've been able to do with Chief was to create these type of joists myself using molding lines. Use a regular molding extrusion for the continuous horizontal pieces and then use 3D moldings for the non-continuous elements. The 3D molding parts need to be modified on a joist by joist basis. It's a little tedious but I think its currently about the best we can do. It would be nice if we had a parametric object to do this type of modeling or if the floor truss tool was somehow expanded to allow various extrusions other than just framing members. Well tell ne how its done with wood floor joists. I would think Steel would be similar Link to comment Share on other sites More sharing options...
Chopsaw Posted September 18, 2017 Share Posted September 18, 2017 Here is a thread where Michael and I hacked about with a three layer I joist concept which you may be able to adapt some aspects of or maybe Michael would be able to make a short video of the 3D molding process as I would love to see that as well. https://chieftalk.chiefarchitect.com/topic/12736-provide-2-materials-for-i-joists/#comment-109726 Link to comment Share on other sites More sharing options...
Kbird1 Posted September 19, 2017 Share Posted September 19, 2017 11 hours ago, raltd9245 said: Well tell ne how its done with wood floor joists. I would think Steel would be similar If you don't need to be too accurate ? and it's more for the visuals . you can use the Floor Truss Tool..... here the floor structure is 27 " --- 24" truss + 3" lightweight concrete --- truss is set with webbing at 1 inch and the webbing thickness at 1" as well..... it is all square stock but if not zoomed in in the view, it is hard to tell... 2 Link to comment Share on other sites More sharing options...
raltd9245 Posted September 19, 2017 Author Share Posted September 19, 2017 Thanks I'll try that. My problem is speed chief has to catch up and add this and many other things to the program. Some of us design contemporary residences which many times include items not available in chief. Link to comment Share on other sites More sharing options...
Chopsaw Posted September 20, 2017 Share Posted September 20, 2017 Very Nice. Thanks Michael Link to comment Share on other sites More sharing options...
raltd9245 Posted October 2, 2017 Author Share Posted October 2, 2017 Great tutorial, for the life of me I can not understand why Chief does not make this part of the program.My standard refrain is: I can get colored hangers but not the framing I require to complete a project in a timely manner. I sure hope Dermot is watching. PLEASE Link to comment Share on other sites More sharing options...
raltd9245 Posted November 7, 2017 Author Share Posted November 7, 2017 On 9/19/2017 at 11:52 PM, Alaskan_Son said: Yep. So we have to come up with our own methods to get it done. Here's one... Bar joist example plan.plan Steel Bar Joist Starter Library.calibz Its just a basic starter kit but hopefully it helps some of you out enough for you to consider sending a ridiculously large donation my way Michael they should incorporate your efforts and pay you for your efforts. Link to comment Share on other sites More sharing options...
ACADuser Posted February 11, 2018 Share Posted February 11, 2018 Micheal, Great effort to create these Bar joist. I was trying to use them on my current building with a flat roof. Well almost flat. That is the problem I am having, I need to rotate them to 1/4" per foot slope. Is that doable with your method? Link to comment Share on other sites More sharing options...
ACADuser Posted February 11, 2018 Share Posted February 11, 2018 I can generate a usable interior view. For the trusses I can do a CAD from view & then rotate the trusses (lines) in that view. This will work for my current needs. Link to comment Share on other sites More sharing options...
Kbird1 Posted February 11, 2018 Share Posted February 11, 2018 If you used my "quickie Method" above and the Roof Plane they would follow the Sloped Ceiling Plane wouldn't they? ie no need to Rotate M. Link to comment Share on other sites More sharing options...
Chopsaw Posted February 11, 2018 Share Posted February 11, 2018 36 minutes ago, ACADuser said: I need to rotate them to 1/4" per foot slope. Is that doable with your method? I think you just missed Michael but this should be doable if you draw your sloped cad line in elevation view and then convert to molding poly line and distribute in plan view. I have not been through the whole process but that is what I would try and Michael will likely be able to comment soon. Link to comment Share on other sites More sharing options...
ACADuser Posted February 11, 2018 Share Posted February 11, 2018 Mick, They need to be top chord bearing on a block wall. I guess if the wall is "Baloon through the ceiling" maybe the truss would build correctly. Link to comment Share on other sites More sharing options...
Kbird1 Posted February 11, 2018 Share Posted February 11, 2018 we have Sloping Flat Roof Trusses but I don't believe they are able to be Top Hung like Michael's Floor System above unless that changed in X10? , I have not played with it in X10. Not sure if they can be forced down into the Wall or not Michael may know.... M. Link to comment Share on other sites More sharing options...
Alaskan_Son Posted February 12, 2018 Share Posted February 12, 2018 Don’t have time to get into either of these things in any real detail but: - You CAN use trusses for a quick depiction. There are a lot of forks in the road but you essentially need to use a dropped ceiling plane that doesn’t extend to your wall’s main layer. - I haven’t needed to creat any sloped bar joists just yet but I’m sure it’s poasible. Just might require a slightly different symbol and some additional steps. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now