Talk:Timber roof truss

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Palladian truss

I am not real clear on what a palladian truss is. It may be a rare and misused term. George, the illustration you placed here is not a good representation of any timber truss I am familiar with because the joints are mitered. The examples of a palladian truss I have seen are based on a queen post truss. This illustration is a king post truss. I am curious what the source of your illustration is? Jim Derby (talk) 17:32, 24 December 2012 (UTC)

I'm not clear about this Palladian truss either, but the source is here. We can easily change the joints when we come to an understanding of what a Palladian truss actually is. The Valeria article seems to suggest that palladio is a uniquely Italian name for what we'd call a queen post truss, but the diagrams I linked to make it look far more like a king post truss, I agree. Any ideas? George Ponderevo (talk) 21:17, 24 December 2012 (UTC)

In Palladio's books on Architecture, Volume 3 has a few truss illustrations. The following link shows what I originally thought a Palladian truss is, but the more I look the more definitions I see so it will take more research to find a reference as to what's what. I do not think of this illustration as a queen post truss, though it has similarities. http://lcweb2.loc.gov/service/rbc/rbc0001/2008/2008rosen0873/0088r.jpg Jim Derby (talk) 00:09, 27 December 2012 (UTC)

Until the mid-20th century, in Italian handbooks Palladio or Palladian truss were the names usually given to triangular trusses "inside of which" a queen post truss was placed (as in the drawing reproduced in my paper and taken from general Sachero's essay, and as you can see schematically drafted in Palladio's treatise, book II, pages 8, 13, 25, 30, etc.); thus the Palladio or Palladian trusses was not only the trapezoidal queen post truss, but the whole composite truss, that usually had also a central king post.

In more recent times, some Italian handbooks started to define Palladian trusses the more common king post truss with struts (that can be also seen in Palladio's treatise e.g. in book II, page 42), but - mainly due to the secular tradition of use - "purists" usually believe that this is an improper diction...

However, people who are intrested in the evolution of Italian trusses in the last two centuries might be interested in taking a look at this paper of mine, partially visible online.

Emanzamp (talk) 18:27, 24 September 2013 (UTC)

sling brace truss

The following mention of a truss type was removed from this article. I plan to reintroduce it but I am going to wait until I have a photo or illustration to help describe it. A sling brace is a timber extending from a post to a rafter or collar beam, interrupting a tie beam. Jim Derby (talk) 02:24, 3 January 2013 (UTC)

References

roof truss

What is the difference between a timber roof truss and any other kind of roof truss? If there is no difference, I suggest making one of those terms a redirect to the other. --DavidCary (talk) 03:48, 24 April 2013 (UTC)

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Technology

Fracture 105.1.177.205 (talk) 15:54, 23 October 2022 (UTC)