Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
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Comparison of the Vibration Principal Stress by Experimental and Numerical Waveform

실측 파형과 수치 파형에 의한 진동주응력 비교

  • Hong, Woong-Ki (Department of Environmental & Chemical Engineering, Seonam University) ;
  • Song, Jeong-Un (Department of Mineral Resources & Energy Engineering, Chonbuk National University) ;
  • Park, Young-Min (Korea Environment Institute)
  • 홍웅기 (서남대학교 환경.화학공학과) ;
  • 송정언 (전북대학교 자원.에너지공학과) ;
  • 박영민 (한국환경정책.평가연구원)
  • Received : 2012.07.11
  • Accepted : 2012.08.13
  • Published : 2012.10.31
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Abstract

In recent years, the development of computer technique was possible to the simulation analysis of the structure caused by ground vibration. Generally, finite element method(FEM) has been used in these structural analysis. In this study, it was calculated to the vibration energy as measuring vibration waveform, and estimated about principal stress due to medium characteristics of the ground as processing dynamic analysis by the vibration energy. The results are as follows : Firstly, the principal stress distribution in all mediums was different due to a medium condition, and the principal stress at concrete medium was represented to difference due to physical characteristics. Secondly, the principal stress by time increasing was represented to maximum amplitude within 0.03 second. And also, the principal stress after maximum amplitude was very large at concrete medium, which was considered to be formed compression or tension range at a medium boundary. Thirdly, the variation of principal stress at concrete medium was represented in the order of RC medium, NC=H medium, NC=S medium. It was considered that the vibration energy propagated fast when a medium have a big elasticity and density.

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References

  1. 김지연, 임홍철, 2001, 지반진동으로 인한 철근콘크리트 구조물의 손상도 추정, 대한건축학회학술발표논문집 21(2), 225-228.
  2. 류창하, 선우춘, 정소걸, 이종림, 주광호, 이대수, 1994, 안전관련 구조물 근접 시공시 발파진동 허용기준의 적용성에 관하여, 한국암반공학회지 4(3), 287-297.
  3. 송정언, 홍웅기, 김승곤, 2011, 매질 특성에 따른 충격진동 평가에 관한 연구, 한국환경영향평가학회지 20(5), 641-649.
  4. 유희룡, 2007, 구조물-유체-지반의 동적 상호작용 해석을 위한 유한요소 모델링, 전북대학교 박사학위 논문.
  5. 주재성, 권숙문, 1993, 근접 발파에 대한 시멘트 블럭조 건물의 진동응답 특성, 한국자원공학회지 30(3), 259-264.
  6. Hao, H., Ma, G.W., Lu, Y., 2002, Damage assessment of masonry infilled RC frames subjected to blasting induced ground excitations, Engineering Structures 24, 799-809. https://doi.org/10.1016/S0141-0296(02)00010-X
  7. Krauthammer, T., Otani, R.K., 1997, Mesh, gravity and load effects on finite element simulations of blast loaded reinforced concrete structures, Computers and Structures 63, 1113-1120. https://doi.org/10.1016/S0045-7949(96)00406-3
  8. Newmark, N.M., 1959, A method of computation for structural dynamics, Journal of the Engineering Mechanics Division 85, 67-94.
  9. Wu, C., Hao, H., Lu, Y., 2005, Dynamic response and damage analysis of masonry structures and masonry infilled RC frames to blast ground motion, Engineering Structures 27, 323-333. https://doi.org/10.1016/j.engstruct.2004.10.004
  10. Zaman, M.M., Desai, C.S., Drumm, E.C., 1984, Interface model for dynamic soil-structure interaction, Journal of Geotechnical Engineering 110, 1257-1273. https://doi.org/10.1061/(ASCE)0733-9410(1984)110:9(1257)