平长还是实长——对《营造法式》“大木作功限”下昂身长的再讨论

Horizontal Length or Actual Length:Re-discussion of the Length of Xia’ang in Yingzao Fashi,Chapter Labor Quota for Large-scape Carpentry

对《营造法式》②"大木作功限"中的下昂"身长"问题,学界有"平长"和"实长"两种不同理解。本文依据"大木作功限"的相关记载,通过复原作图的方法讨论了"实长"的可能性,提出两点假说和两个推论。

Scholars have two different understandings of the term"body-length"that describes the size of the descending cantilever known as xia’ang in the Song-dynasty manual Yingzaofashi chapter on labor quota for large-scape construction.Some scholars believe that the term body-length refers to the horizontally projected length of the component,while others believe that it is the actual length measured along the incline.This paper explores the possibility of actual length through relevant restoration drawings,and presents two hypotheses and two conclusions.