This research is conducted focusing on the 7-Dories type wooden buildings showing different rafter installation. This research found the reason why the rafter configuration look different each other and the relationship the between rafters and the Dory. Factors were compared to determine why the rafter configuration show the formal differentiation. The comparison factors are as follows: 1. The type of rafter installation is related to the longitudinal length of the building. 2. The type of rafter installation is related to the number of Kans on the side of the building and is proportionate. 3. The type of rafter configuration is related to the Dory arrangement and is proportionate. 4. The type of rafter configuration is related to the Dory’s vertical arrangement. If the Dory arrangement is small, it is identified as two-stage rafter configuration. And if the Dory arrangement is large, it is identified as three-stage rafter configuration. Eventually, it was confirmed that the rafter configuration were affected by the Dory arrangement.

본 연구는 단조가력 하중을 받는 실물크기 비닐온실의 기둥-서까래-도리 접합부의 역학적거동을 알아보기 위해 현장에서 시공되고 있는 두 가지 형식의 실험체로 구조실험을 수행하였다. 실험결과를 바탕으로 두 가지 형식의 접합부에 대해서 휨성능을 분석하고 접합부 분류를 시도하였다. Type B 는 Type A에 비해 휨 성능이 77% 수준으로 나타났으며 두 형식 모두 강성 및 휨내력이 강접합 수준에 미치지 못하는 것으로 나타났다. 기둥-서까래-도리 접합부의 거동은 용접부 및 체 결구 변형에 의한 국부좌굴이 지배적이었다. AISC 기준에 의한 접합부 분류 결과, Type A와 B 접합부 모두 설계 시 가정하는 강접합 성능에 미치지 못하는 결과를 보였으며 단순 접합으로 분류되는 것으로 나타났다. 따라서 접합부 성능평가 및 분류 결과, 접합부 성능을 고려한 온실 설계가 이루어져야 하며 신뢰성 높은 온실 구조설계를 위해서 온실 접합부에 대한 명확한 설계기준 정립 연구가 필요할 것으로 판단된다.

As wooden construction developed, it was observed that the rafters with corners changed to angled rafters. The change from rafters to angle rafters means that the angle rafters became the most important member in supporting the roof weight as the construction scale increased and structurally developed. The specific installation methods of angle rafters were all unique in Korea, China, and Japan. In East Asia, the angle of the angle rafter gradually decreased along with the development of construction. However, in Joseon Dynasty Korea, the angle of the angle rafter was larger than that of the Gorye era because the method of fixing the corner of the roof more firmly by building the fan-shaped rafter was utilized. The changes to the angle rafter installation method is a unique characteristic of Korea, in that it was developed in a totally different way from the methods used in China and Japan.