應用三維雷射掃瞄圖資解析臺灣傳統厝基本空間尺度構成之邏輯－－以臺南縣東山鄉穿式厝為例

Applying Three-Dimensional Laser Scanning Technology to Interpret the Measurements of Chuandou Timber Framework that Influence the Spatial Arrangements of Taiwan Traditional Vernacular Buildings—Using the Timber Framework Buildings in Dongshan Township of Tainan County as Case Study

本文旨在解析臺南縣東山鄉傳統厝之「廳」，穿式構架特色及影響空間尺度的邏輯問題。研究首先依據構架類型分類余燦師系作品，並利用三維雷射掃瞄技術掃瞄研究樣本，製作正射點雲圖面比對，納入司阜口述史料釐清構架營建禁忌觀念，探討禁忌法則限制下之穿式構架所構成的空間尺寸秩序。研究重點之一，藉由訪談及實地勘查過程歸納師系作品大厝身廳的特色及構架配定手法；之二，以具有高精度、無畸變差特性之三維雷射掃瞄技術所獲取之穿式構架正射點雲圖資進行司阜營建規則檢視及相關尺寸量測，進而根據內文小結檢視影響師系作品的配定因素。結論透過本文探討之ab 禁忌線課題，發現廳高（Z）越高，則燈樑外（Xa）及廳內（Xb）空間越小的反比現象，釐清大厝身不同規模架數卻皆擁有異中求同的尺度成因，將穿式構架特色及構架關係獲致更佳的瞭解。

This paper attempts to accomplish two research aims. Firstly to study the characteristics of Chuandou timber frameworks of local traditional houses in Dongshan area of Tainan County, and secondly, to understand how the space dimensions, with the help of the space information done by 3D Laser Scanning, of the above-mentioned timber frameworks, influence the logics of forming local traditional houses in Tainan. This illustrates an interesting phenomenon that the interior room space is still kept relatively similar irregardless of the varying overall scale of Chuandou timber frameworks, thus shedding more lights on the study of logics within Chuandou timber frameworks and its related construction techniques.