香山帮建筑摔网椽长度及弯里口木牡丹头斜度取值研究

On Ascertaining with Accuracy the Length of Shuaiwang Chuan and the Curvature of Mudan Tou in Curved Likou Mu for Xiangshan-Clan-Built Architectur

摘要:

在翼角的制作过程中，香山帮匠师会将摔网椽及直挺出檐椽一次性截净做正，后期不再扫檐，而牡丹头斜度值关系到弯里口木是否能与嫩戗贴合，立脚飞椽口子的斜度也与其息息相关，故各根摔网椽长度值及牡丹头斜度值的确定尤为重要，然而目前行内所使用之方法均只能得其近似值，本文依据香山帮建筑翼角之营造规律及目的，推导出了一系列公式，以求相应构件各部位之准确数值。

Abstract:

When building an eave corner, a craftsman of Xiangshan Clan would in advance finish both the the shuaiwang chuan (radiating lower rafters)and zhiting chuyan chuan (parallel lower rafters) instead of making adjustments after they are assembled. And the curvature of the end (mudan tou) of likou mu (pole plate) is crucial to the attachment of likou mu to nen-qiang (tilting corner beam) and the shape of its indentations for fly rafters. Thus ascertaining with accuracy the length of shuaiwang chuan and the curvature of mudan tou is highly relevant to the studies of Xiangshan Clan’s architectural legacy,whereas previous research findings mostly stopped at approximations. Drawing from the constructing patterns and ideologies of Xiangshan Clan’s craftsmen,this essay developed a series of formulas that could establish the values in question with increased accuracy.