Abstract
It is essential to study the position of beams put in the bracketing and the increase of the number of steps of the bracketing inside the building, in order to systematically prove the changing process of bracketing complex in the Tap'o-style architecture in Korea. The present paper is to inquire into the evolution of bracketing from above-mentioned points of view. In the old type of bracketing during the period between the late Koryo-Dynasty and the early Yi-Dynasty, the number of steps of the bracketing inside the building is equal to that of the outside (Figs. 1. 2). From the latter half of th,e 15 th century, this type of bracketing changed into a new type : the number of steps of the interior bracketing is more than that of the exterior bracketing. This is due to the position of the beams put in the bracketing. After the second half of the 18 th century, the increase the number of steps of the interior bracketing has no relation to the position of beams (phot. 1). Thus, this type is regarded as one of the characteristics in the Tap'o-style at the en.d of the Yi-Dynasty.
