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Pendentive





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Inarchitecture, a pendentive is a constructional device permitting the placing of a circular dome over a square room or of an elliptical dome over a rectangular room.[1] The pendentives, which are triangular segments of a sphere, taper to points at the bottom and spread at the top to establish the continuous circular or elliptical base needed for a dome.[2] In masonry the pendentives thus receive the weight of the dome, concentrating it at the four corners where it can be received by the piers beneath.

Schematic representation of a dome on pendentives.

Prior to the pendentive's development, builders used the device of corbellingorsquinches in the corners of a room. Pendentives commonly occurred in Orthodox, Renaissance, and Baroque churches, with a drum with windows often inserted between the pendentives and the dome. The first experimentation with pendentives began with Roman dome construction in the 2nd–3rd century AD,[3] while full development of the form came in the 6th-century Eastern Roman Hagia SophiaatConstantinople.[4]

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See also

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References

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  • ^ "pendentive (architecture) - Britannica Online Encyclopedia". Britannica.com. Retrieved 2012-08-15.
  • ^ Rasch 1985, pp. 129f.
  • ^ Heinle & Schlaich 1996, pp. 30–32
  • Sources

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    Last edited on 21 September 2023, at 17:53  





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    This page was last edited on 21 September 2023, at 17:53 (UTC).

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