Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Shaking Table Test for an Evaluation of the Limit State Capacity of an Anchor Foundation in the case of a Seismic Event

지진시 앵커기초의 한계성능 평가를 위한 진동대 실험

  • 김민규 (한국원자력연구소 종합안전평가부) ;
  • 최인길 (한국원자력연구소 종합안전평가부) ;
  • 권형오 (브이테크)
  • Received : 2010.06.16
  • Accepted : 2010.08.19
  • Published : 2010.10.31
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Abstract

In this study, a shaking table test was performed for the evaluation of the failure capacity of an anchor foundation system in the case of an aged condition. For the shaking table test, three kinds of specimens were manufactured as follows: 1) a non-damaged anchor; 2) a specimen with cracks running through the anchor; and 3) a specimen with cracks along the expected corn-shape fracture away from the anchor. A dynamic characteristic was determined through a measurement of the frequency response function (FRF), and the seismic capacity was evaluated by using a shaking table test. Failure capacities were calculated using an acceleration response and it was compared with the anchor design code.

본 연구에서는 지진시 앵커기초의 파괴한계성능을 평가하기 위하여 진동대 실험을 수행하였다. 앵커기초에 발생 가능한 열화현상인 균열의 영향을 평가하기 위하여 균열이 없는 시편, 관통균열 시편 그리고 파괴예상면 내에 측면균열이 있는 시편을 제작하여 각각의 파괴한계성능을 평가하였다. 우선적으로 임팩트 해머에 의한 가진 실험을 통하여 동특성분석실험을 수행하여 실험모형의 동특성을 분석하였으며, 앵커기초의 파괴 시까지 진동대 실험을 수행하여 극한거동을 평가하였다. 최종적으로 앵커기초의 설계기준과 비교하여 거동특성을 분석하였다.

Keywords

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