Nakazonae

中備・中具 are decorative intercolumnar struts installed in the intervals between bracket complexes (tokyō) at Buddhist temples and Shinto shrines in Japan. In origin they were necessary to help support the roof, however at the end of the 10th century the invention of the hidden roof made them superfluous. They remained in use, albeit in a p...
Found on http://en.wikipedia.org/wiki/Nakazonae
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