In this study, I would like to inquire about the composition of oegi(外機) on the hip and gable roof. Oegi purlin compose the basic member of framework of a hip and gable roof in both sides roof, supporting the inside end of the side rafter. However, the oegi purlin is not simply used to form hip and gable roof. The effects of using oegi purlin have the advantages of spatial. The spatial advantages are the width of the toekan(退間) increases as the oegi purlin escapes from column row and to increase the ceiling height by becoming a point of staying the ceiling. That reflect the desire to expand indoor space due to changes in worship behavior. Oegi purlin was used not only for structural needs, but also for altering in indoor space due to the changing times.

Modern Joseon Architecture is North Korea's unique building style that interprets Korean traditional architecture in a modern way, and its most distinctive design feature is the Paljak roof that decorates the upper part of the buildings. This paper argues that continuous attempts at characterizing the nature of traditional Korean architecture in the late 1950s and early 1960s developed the theoretical rationale for the exclusive use of the Paljak roof in Modern Joseon Architecture. It also argues that the construction of the Pyongyang Grand Theater and the Okryu Restaurant during this period became a decisive moment for the formalization of the Paljak roof. The double roof rafters and gables and the "cheerful yet solemn" roofline were considered as main characteristic features of the Korean roof and the Paljak roof perfectly fits this description. Particularly, in North Korean society where Kim Il Sung became idolized as an impersonalized deity, an anecdote in which Kim Il Sung fixed a prominent gabled roof in the Pyongyang Grand Theater into a Paljak roof has allowed for the roof to gain an exclusive status. Hence, almost all Modern Joseon Architecture since the 1960s accepted the Paljak roof’s monopoly position, rather than experimenting with other traditional roof types.

The purpose of this study is to classify three-Kan hipped and gable-roofed Buddhist temples with the construction of their eave curve of part chunyeo and examine the characteristics and causes. The conclusions have been drawn as follows: First, there are largely three ways to secure symmetry in eave curve of part chunyeo. One is to obtain symmetry in eave curve of part chunyeo by making the size of eaves curves on well sides the same and forming symmetric curves in the front section along with the side roof and then forming the straight line in the central part (hereinafter referred to as the long straight line section method). The second is a method to enlarge eaves curves in the front and form eaves curves on the roof section to be symmetric (hereinafter referred to as the front is larger than side eaves curves method). The third is the method to make eaves curves in the roof section to be symmetric by adjusting the roof length and making difference between the front and side roof’s length minimum(hereinafter referred to as the roof length-controlling method). Second, there are 16 cases applying two or more methods, and they are the mainstream. Third, there are 12 cases applying the front is larger than side eaves curve method and roof length-controlling method both, which seems to be the most universal. To sum up, they secured symmetry in roof edges considering the construction of seonjayeon and pyeongyeon according to the size of the structure, recognition on the directions of entrance into the area of the building, forms of planes, harmony with structures around, recognition on roof curves in accordance with the size, and also structural faults in the chunyeo part.

It is difficult to build a hipped and gable roof in slender rectangular type due to restraint in variation of lateral length caused by gongpo arranged on the side, purlin space and the form of gable part and aesthetical effect of chunyeo maru. Against this backdrop and with the assumption that this phenomenon is more apparent in roofs of three-bay-kan Buddhist temples with the hipped and gable roof among national treasure Buddhist temples, this study has aimed to prove that a roof can be built in a less slender rectangular type than that of flat form and to present the building methodology and found the following findings. First, The ratio of lateral to longitudinal length of the roof has been adjusted by protruding the chunyeo and the method of adjusting the ratio of lateral to longitudinal length of the roof is considered to be determined depending on the availability of woods to be used in chunyeo. Second, in order to symmetrically arrange the edge of the roof, which is critical from the perspective of construction morphology, the chunyeo angle has been intentionally adjusted to reduce the gap of length between the front roof and the lateral roof. To sum up, the characteristic of the hipped and gable roof, which is difficult to be built in slender rectangular type, is more clearly shown in the roof and it is identified that the length of the front roof and the lateral roof has been intentionally adjusted to achieve the symmetrical arrangement of roofline of the roof edge.

본 연구에서는 일반적인 지붕과 다른 형상을 갖고 있는 한옥의 지붕에 작용하는 풍압의 크기를 판단하고자 하였다. 한옥 지붕면에는 용마루, 내림마루와 추녀마루라는 특징적인 돌출부가 존재하는데, 건축구조기준에 제시된 풍압계수는 이러한 돌출부가 있는 지붕을 고려한 값은 아니기 때문에 구조기준에 근거하여 풍압계수를 결정하기에는 불확실한 요소가 존재한다. 이에 따라 본 연구에서는 한옥의 팔작지붕과 맞배지붕 중 마루 부분에 작용하는 풍압계수를 분석하였다. 풍동실험모델은 팔작지붕 1개와 맞배지붕 2개의 3종류를 제작하였다. 실험모델의 스케일은 애일당의 1/15 이다. 실험모델 풍압공은 팔작지붕의 경우, 지붕면 부분에에 1-198, 마루 부분에 199-243까지 총 243개의 풍압공을 배치하였다. 맞배지붕의 경우 지붕면 부분에 1-170, 마루 부분에 171-207까지 총 207개의 풍압공을 배치하였다. 풍동실험은 실험모델이 대칭인 점을 고려하여 0°에서 90°까지 수행하였다. 지붕면 가장자리에서 부압은 건축구조기준을 준수할 경우 문제가 없지만 추녀마루 끝단 부분에서는 문제가 있을 수 있음이 확인 되었다.