Queen post

Today, Queen post is a topic of great relevance and interest to a wide spectrum of people. Whether due to its impact on society, its implications in daily life or its historical importance, Queen post has become a key point of discussion in different areas. From its emergence to its evolution over time, Queen post has captured the attention of academics, professionals, and the curious alike. In this article, we will explore different aspects related to Queen post, from its origin to its current effects, with the intention of offering a comprehensive and enriching perspective on this very relevant topic.

Queen Post
Interior structure of a covered bridge that uses a queen-post structure
Interior structure of a covered bridge that uses a queen-post structure
AncestorTruss bridge
RelatedNone
DescendantNone
CarriesPedestrians, livestock, vehicles
Span rangeshort to medium
Materialwood planks
MovableNo
Design effortmedium
Falsework requiredSometimes

A queen post is a tension member in a truss that can span longer openings than a king post truss. A king post uses one central supporting post, whereas the queen post truss uses two.[1] Even though it is a tension member, rather than a compression member, they are commonly still called a post. A queen post is often confused with a queen strut, one of two compression members in roof framing which do not form a truss in the engineering sense.[2]

The double punch truss appeared in Central Europe during the Renaissance.[3]

Architecture

The queen posts are the second and third (from left) vertical posts visible in the photo, visibly thicker than the other posts.

A queen-post bridge has two uprights, placed about one-third of the way from each end of the truss. They are connected across the top by a beam and use a diagonal brace between the outer edges. The central square between the two verticals is either unbraced (on shorter spans), or has one or two diagonal braces for rigidity. A single diagonal reaches between opposite corners; two diagonal braces may either reach from the bottom of each upright post to the center of the upper beam, or form a corner-to-corner "X" inside the square.[4]

See also

References

  1. ^ Gopi, Satheesh. Basic civil engineering. New Delhi: Dorling Kindersley (India) Pvt. Ltd., 2010. 155. Print. ISBN 8131729885
  2. ^ "Timber Framing for Beginners: VI. Glossary of Terms" Timber Framing Vol. 68 June 2003. 12. "Archived copy" (PDF). Archived from the original (PDF) on December 7, 2012. Retrieved December 10, 2012.{{cite web}}: CS1 maint: archived copy as title (link)
  3. ^ Lefrançois, Richard (2004). Les nouvelles frontières de l'âge. Presses de l’Université de Montréal. doi:10.4000/books.pum.18081. ISBN 978-2-7606-1963-0.
  4. ^ American Barns and Covered Bridges, Eric Sloane, Wilfred Funk, Inc. New York, New York; 1954, pg 96-97


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