쌍계사 오층석탑모델에 대한 지진격리효과 진동대실험

Shaking Table Test of the Model of Five-story Stone Pagoda of Sang-Gye-Sa Mounted on Base Isolation Systems

  • 김재관 (서울대학교 공과대학 지구환경시스템공학부 부교수, 정회원) ;
  • 이원주 (서울대학교 공과대학 지구환경시스템공학부 석사. 비회원) ;
  • 김영중 (한국기계연구원 구조시스템연구부 진동그룹 선임연구원 정회원) ;
  • 김병현 (한국기계연구원 구조시스템연구부 진동그룹 책임연구원 정회원)
  • 발행 : 2001.09.01

초록

Seismic performances of the base isolated model of Five Story Stone Pagoda were studied through shaking table tests. Friction pendulum system (FPS), Pure-friction system with laminated rubber bearing (LRB) and Ball with rubber bearing were selected fur the comparison of performances. Performances of specially designed isolation systems were tested dynamically using shaking table. The test results of isolated model are compared with those of fixed base model. Compared with fixed base model, the isolated model showed that it could withstand much higer intensity of earthquake motion. The Effective Peak Ground Acceleration (EPGA) value of isolated model when the top component tipped over was above twice of that value in case of fixed base model. According to the additional test results, the lower value of coefficient of friction than that of common frictional base isolation systems is more effective to protect the piled multi-block system of Pagoda against moderate intesity of ground motion.

키워드