Abstract：During the interview with the carpenters of Dong nationality, the research team found that there were misunderstandings about the “octagon” in the sorting of survey and mapping data of variable angle Drum Tower in the past, which means not all the octagonal roof projections in the variable angle Drum Tower are regular octagons. With the oral statements of Yang Yingqi and Lu Wenli, two inheritors of intangible cultural heritage, this paper analyzes the relationship between the standard frame and the building curve, explains that in order to create a more beautiful building curve and to solve the modeling problem of “roof corner punching edge”, carpenters break through the inherent thinking that the plane graphics of the drum tower should be positive octagons, and produce the so-called “crooked octagons” technique through adjusting the “eave purlin length” or “short column spacing”. This paper also compares the differences and characteristics of the construction of variable angle Drum Tower caused by these two frame design methods. The discovery of this phenomenon reflects the diversified characteristics of the drum tower construction technology and the personal wisdom of the ink master. It also highlights that the oral history method is an important research means to establish the correlation between craftsman, architecture and technique.
蔡凌，王雅凝，廖若星，邓毅*. 正八边形的“误会” ——贵州侗族变角鼓楼中的“歪八角”技艺[J]. 新建筑, 2022, 40(2): 18-24.
CAI Ling,WANG Yaning,LIAO Ruoxing,DENG Yi. Misunderstandings about the Regular Octagon: “Crooked Octagons” Technique of the Dong Variable Angle Drum Towers in Guizhou Province. New Architecture, 2022, 40(2): 18-24.
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