팔방금강좌의 황금비율 = Golden Ratios in the Eight Direction Diamond Thrones of the Seokgatap

다국어 초록 (Multilingual Abstract)

The Eight Direction Diamond Thrones together with the lower base consist of the ground plan of "Seokgatap", the three story pagoda of the Bulguksa temple built in the 8th century. This study tried to find golden ratios in the Thrones and the way to apply the ratios. The study has been done by two steps; firstly the structure of the Thrones and secondly the design on its surface.
The structure of the Thrones is a kind of geometrical diagram consisted of squares and circles. The study tried to reconstruct the diagram with the average figures of the surveyed value by the National Research Institute of Cultural Heritage. And it arrived at the following results by comparing the related parts; 1) the width of the square formed by the inter-center segments bewteen the Thrones equals that of the lower base square multiplied by φ(≒1.618). 2) the diameter of a Throne multiplied by φ equals the space between the two squares. 3) the width of a belt stone between near Thrones equals the radius of a Throne divided by φ. As these three values of the results are all that needed to draw the diagram, we can safely conclude that the Thrones are designed under the principle of golden ratio.
The subject of the surface design on a Throne is an eight-petal lotus which has five concentric circles of inner ovary, outer ovary, inner petal, outer petal and outskirts. The study traced the spaces between near concentric circles by checking various golden ratios found on the elevation of the Seokgatap. And concluded that the eight Thrones have a same pattern of the concentric circles and every two near segments of the radius produced by the circles revealed one of the golden ratios.
A Throne may have a single or double petal design on the surface. And there may be many alternatives to setup them on the eight Thrones. The study tried to understand the existing setup and argued that it means the golden section expressed by natural numbers. That is the same meaning as the Fibonacci number 8 equals 2+1+2+3.
One may safely conclude from the above findings that the ground plan of the Seokgatap, just like the elevation, is designed under the principle of golden ratios.

참고문헌 (Reference)

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