1990 Fiscal Year Final Research Report Summary
A study on historical development of architectural construction, mainly from the viewpoint of "Kiku-jutsu" ,or a sort of stereometory using carpenter's scale and the square root.
Project/Area Number |
01550485
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Research Category |
Grant-in-Aid for General Scientific Research (C)
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Allocation Type | Single-year Grants |
Research Field |
建築史・建築意匠
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Research Institution | Nara University |
Principal Investigator |
OKADA Hideo Nara University Department of Cultural Properties Professor, 文学部・文化財学科, 教授 (90090373)
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Project Period (FY) |
1989 – 1990
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Keywords | premodern carpentry techniques / two-step rafters / hidden corner rafter / bracket lever / rectangular tie-bar of rafters / formation of the curve of tie-bar / integrated two-step corner rafter / tenon connection (between corner rafter and rafters) |
Research Abstract |
"Kiku-jutsu", or a sort of stereometory by carpenter's scale and square root, is one of traditional carpentry techniques, which is mainly applied to the arrangement of corner rafters. Origin of this art is up to ancient times, but it stayed in empirical knowledge until medieval times. In Edo period, general theories were established with the development of Japanese mathematics, and a lot of block-printed textbooks on it were published. Main result of this study consist in declaration of historical changing of the technique, and the study also referred to the change of roof structure which is deeply concerned with rafters. There were historical innovations including new members appeared in this period. In general, however, as the theory became detailed, so the shape was not necessarily refined. The art is most important one among whole traditional architectural techniques, and these results are probably first fruit in the field of Japanese architectural history.
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Research Products
(3 results)