It was believed that Jeongnimsa temple was built after the capital was moved from Gongju to Buyeo. It was confirmed that it was built A.D. 625 ± 20 by conducting a paleomagnetic analysis on the fireplace, which was recently found at the bottom of Jungmunji(middle gate). Consequently, it is assumed that the temple was built in the early 7th century unlike the previous point of view. Therefore, this study evaluated if the fireplace at the bottom of Jungmunji was found at the geological stratum representing the Jeongnimsa temple. Moreover, the study examined when the fireplace at the bottom of Jungmunji was constructed on the soil stratum. It is possible that the fireplace was built in the early 7th century as shown in the paleomagnetic analysis. However, when we compared the soil strata of the Jungmunji and the existing five-story stone pagoda, it showed that the ground was prepared differently and they were built over a fairly long period of time. Furthermore, I discovered that there was a wooden pagoda under the five-story stone pagoda by examining the soil strata map. Therefore, previous studies evaluated the arrangement of auxiliary buildings of Jeongnimsa temple and concluded that it was built in the early 7th century. It is hard to determine when the temple was built based on the arrangement of auxiliary buildings, because it takes a long time to build a temple and auxiliary buildings can be relocated during this long construction period. Rather, we have to admit that there are various arrangement patterns through minor changes in buildings from the one pagoda and one main building(Geumdang) arrangement.

요즘은 비선형해석과 유한요소해석이 가능하며 또 불연속면을 모델링을 통해 구현할 수 있도록 개발된 컴퓨터 프로그램이 개발되어 사용되고 있다. 그러나 석조구조물의 물성을 파악하지 않고서는 이러한 프로그램을 이용하여 실제거동을 예측하기가 매우 곤란하다. 이를 위해 석재와 석재의 접촉부의 강성의 변수를 사이부재를 가정하는 방식으로 수행하였으며, 실제 고유진동수를 측정하고, 석탑을 다자유도계 구조물로 가정하여 고유치 해석을 한 다음 이론상 고유진동수와 실제고유진동수가 일치하도록 접촉면의 강성을 조절하는 방식으로 모델링을 수행하였다. 연구를 위해 정림사지 오층석탑을 대상으로 구조모델링을 실시하였다. 본 연구결과는 석탑형 문화재에 대해 범용 프로그램을 이용한 구조모델링을 가능하도록 함으로써 주요 석탑형 문화재의 연직하중 뿐 아니라 진동이나 횡력에 대한 구조안전성 평가를 하는 과정에서도 유용할 것으로 기대된다.