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지진하중을 받는 지하구조물에 대한 동적 거동해석

Analysis of Dynamic behavior for Underground Structures under Earthquake loading

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2007, v.9 no.2, pp.205-217
박성용 (연세대학교)
박인준 (한서대학교)
이재진 (연세대학교)
최승호 (한서대학교)
김수일 (연세대학교)
  • 다운로드 수
  • 조회수

초록

지진 시 지하구조물의 거동은 구조물 자체의 동적 특성 보다는 주변지반의 동적특성에 영향을 받는다. 따라서 구조물을 감싸고 있는 지반의 특성이 구조물의 동적 거동특성을 좌우한다. 본 연구의 목적은 지진시 지하구조물의 동적 거동 및 응답특성(축방향 변형 및 ovaling 변형)을 분석하는 것이다. 지진시 지하구조물의 동적 거동 및 응답특성을 분석하기 위해서 지반조건, 지진조건, 구조물 조건 변화에 따라 구조물에 발생하는 응답을 이론해법을 이용하여 분석하였다. 추가적으로 소규모의 모형 실험체를 이용한 진동대 실험을 수행하여 구조물의 동적거동을 분석하였으며, 이론해를 이용한 해석결과와 비교분석한 결과 경향성이 잘 일치함을 확인할 수 있었다.

keywords
지하구조물, 지진, 축방향 변형, ovaling 변형, 진동대 실험, Underground structure, earthquake, longitudinal deformation, ovaling deformation, shaking table test, Underground structure, earthquake, longitudinal deformation, ovaling deformation, shaking table test

Abstract

behavior characteristics of underground structures are reported as they are not affected by their dynamic characteristics such as surface structures, but by dynamic characteristics of soil and rock surrounding the underground structures. Therefore, dynamic behavior of surrounding soil and rock dominates the dynamic behavior of the underground structure. The purpose of this paper is to analyze the dynamic response (longitudinal deformation and ovaling deformation) of the underground structure under earthquake loading. The dynamic responses of the underground structures were evaluated with varying earthquake conditions, soil conditions, and structural conditions using conventional closed-form solution of seismic behavior of underground structure. In addition, shaking table tests were conducted to simulate the earthquake loading and the dynamic behavior of the model was analyzed.

keywords
지하구조물, 지진, 축방향 변형, ovaling 변형, 진동대 실험, Underground structure, earthquake, longitudinal deformation, ovaling deformation, shaking table test, Underground structure, earthquake, longitudinal deformation, ovaling deformation, shaking table test

참고문헌

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(사)한국터널지하공간학회