The king of Joseon Dynasty Jeong-jo commanded the renovation of Seongjeong-gak, once a study for crown prince, to serve as Pyeonjeon(便殿), a main office for kings. The renovated building strictly separated the routes designated for the king and the other officers, respectively. The interior space consisted of Youngnae, reserved for the king and his senior aides, and Youngwae, for lower ranking officers. Youngnae(楹內) and Youngwae(楹 外) corresponded to the two blocks (the space between two columns) on the east and west side, respectively. Such structure of Pyeonjeon was heavily transformed over several occasions beginning from the late nineteenth century. Youngwae was subdivided into separate spaces, and the routes for the king and the officers became indistinguishable.

Abstract
1. 서 론
    1-1. 연구 목표
    1-2 연구 방법
2. 성정각을 표현한 회화와 도면 분석
    2-1. 『왕세자입학도첩』「수하도」(1817, 국립고궁박물관 소장)
    2-2. 「동궐도」의 성정각(1830년 경, 고려대학교박물관 동아대학교 박물관)
    2-3. 「동궐도형」의 성정각(1907년 경, 장서각 규장각)
3. 『승정원일기』의 ‘영내(楹內)’와 ‘영외(楹外)’구분
4. 성정각 단층부의 건축 구조 분석
    4-1. ‘영내(楹內)’ 부분의 창호 구조
    4-2. ‘영외(楹外)’ 부분의 창호와 천정 구조
    4-3. 퇴칸의 난간 구조와 주초의 홈
5. 결론
참고문헌

• 이종서(울산대학교 역사·문화학과) | Lee Jong-Seo Corresponding Author