The bracket sets which are supporting the weight of the roof, has to meet both requirements which are structural functions and act as an ornamental element. Therefore the bracket sets differ in many types from time and space and has done an important role in the history of architecture with many studies being presented. The first form of the bracket set has been found in the bronze table relics in zhōng shān wáng líng (中山王陵). Through the Eastern Han dynasty (A.D. 25-220) it became more specific in the shique (石闕) and huaxiangshi (畵像石) in the Han dynasty (206 B.C.-A.D. 220). Afterwards, as Buddhism was introduced to China, the bracket construction techniques shown in the Mogao Caves, Yungang Grottoes, and Longmen Grottoes has given much help for understanding the building techniques of wooden architecture. Especially the Xia-ang structure seen in the Mogao caves shows a vast development in wooden structure and a typical building would be the main hall of Fo Guang Shan monastery in Mt. Wutaishan from the Tang dynasty (A.D. 618-907). This accumulated techniques is inscribed in the 'Ying Zao Fa Shi (營造法式)' wooden structure designs which was published during the Northern Song dynasty (A.D. 960-1127) and many buildings were constructed following this technique after the publication. During this period, it is assumed that Baek-jae (B.C.18-A.D.660) in the Korean peninsula also used the Xia-ang technique, but there havn't been many studies on this field. In this thesis it is introducing the development of the building techniques and structural features of the Xia-ang wooden architecture during the Tang and Song dynasty.

1. 연구의 목적 및 범위
2. 下昻의 선행연구
    2-1. 두공의 어원
    2-2. 선행연구 검토
3. 下昻式포작의 시원과 변천과정
    3-1. 돈황벽화의 下昻式포작
    3-2.「營造法式」이전 건물의 下昻기법
4.「營造法式」과 이후 건물의 下昻技法
    4-1. 「法式」에 나타난 下昻기법
    4-2. 宋「營造法式」이후 建物의 하앙기법
5. 결론
참고문헌
Abstract

• 장헌덕(한국전통문화학교 전통건축학과 부교수) | Chang Hun-Duck (Professor, The Korean National Univ of Cultural Heritage) Corresponding author