Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Verification of Hybrid Structural Test Technique by Shaking Table Test of a Linear 2-Dimensional Frame Model

소형선형 평면뼈대모형의 진동대실험을 통한 하이브리드실험 기법의 검증

  • 조성민 (명지대학교 토목환경공학과) ;
  • 최인규 ((주)인터컨스텍 기술연구소) ;
  • 정대성 (명지대학교 하이브리드구조실험센터) ;
  • 김철영 (명지대학교 토목환경공학과)
  • Received : 2010.06.09
  • Accepted : 2010.10.25
  • Published : 2010.12.31
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Abstract

This paper deals with the hybrid structural test technique which has been introduced and studied currently in Korea. In this study, a Mini-MOST system which was developed as a part of NEES research was modified and improved to reduce the total simulation time to half of the original system. Using the proposed system together with the 2 dimensional small steel frame specimen, the validity and efficiency of the hybrid test technique is investigated. Even though the hybrid test has been developed as an alternative to the shaking table test and has been studied and applied for a long time in several countries, no attempt has been made to compare it directly with the shaking table test. Therefore, in this study, the hybrid test results are compared with those of the shaking table test as well as with a numerical simulation for the verification of hybrid test. From the comparison and analysis of the test results, it is concluded that the hybrid test can simulate the actual seismic behavior of structural systems very accurately and it can be a good alternative to the shaking table test.

본 논문은 지진에 의한 구조물의 거동을 평가하기 위한 실험방법 중 최근 국내에 도입되어 연구되고 있는 하이브리드실험에 대한 시스템을 구축하고, 그에 따른 모델개발과 하이브리드실험을 실시하여 하이브리드실험기법의 타당성과 정확도를 평가하기 위함이다. 이를 위해 NEESgrid의 미니모스트 시스템을 벤치마킹하여 여건에 맞게 수정, 보완하였으며 2차원 평면뼈대모형을 개발하여 실험에 적용하였다. 그리고 하이브리드실험 결과의 평가를 위해 국내에서는 거의 시도되지 않았던 진동대실험과 비교를 함으로써 결과의 신뢰도를 높였다. 진동대실험에는 하이브리드실험과 동일한 크기의 실물모형을 제작, 실험하여 크기효과의 영향을 최소화하였다. 두 실험의 결과는 거의 비슷한 것으로 나타나 하이브리드실험이 진동대실험을 대체할 수 있을 것으로 판단된다.

Keywords

References

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