A-frame
An A-frame is a basic structure designed to bear a load in a lightweight economical manner. The simplest form of an A-frame is two similarly sized beams, arranged in an angle of 45 degrees or less, attached at the top, like an uppercase letter 'A'. These materials are often wooden or steel beams attached at the top by rope, welding, gluing, or riveting.
A sawhorse can be formed by connecting two A-frames along the length of a beam
A-frames can be used as-is, as part of shears, or set up in a row along a longitudinal beam for added stability, as in a saw horse. More complex structures will often have crossmembers connecting the A-frames at different angles,[1] forming a truss.
Other structures that use A-frames
- A-frame house
- A-frame hydroponics system
- A-frame contour measuring spirit level
- A frame camping tent
- A-frame complex, a motif in chemistry
- Folding ladder
- Double wishbone suspension (cars)
- Some suspension bridges
- Some swing bridges
- At the stern of ships for fishing or research
- The main building of Florida's Disney's Contemporary Resort, in which the Walt Disney World monorail has a station
- Some Wienerschnitzel and Whataburger restaurants use the A-frame
- The London Eye is supported by only one A-frame on one side.
- Some beam engines use an A-frame
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References
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Wikimedia Commons has media related to A-frame. |
- "A-frame" (2009). Oxford English Dictionary Second Edition on CD-ROM (v. 4.0). Oxford University Press.
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