Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
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Seismic Capacity Evaluation of Existing Structures Incorporating Damage Assessment

구조손상을 고려한 기설구조물의 내진성능평가

  • 송종걸 (강원대학교 토목공학과) ;
  • 이진학 (한국과학기술원 스마트사회기반시설연구센터) ;
  • 이동근 (성균관대학교 건축공학과)
  • Received : 2004.07.08
  • Accepted : 2004.08.27
  • Published : 2004.10.27
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Abstract

This paper covered two related subjects: the use of the inverse modal perturbation technique to assess structural damage in existing structures; and the use of a seismic capacity evaluation to assess damaged structures, with the aid of the identified structural damage. The substructural identification and the Tikhonov regularization algorithm were incorporated for efficient damage assessment of complex and large frame structures. The seismic capacity of a damaged structure was evaluated by comparing the structure's seismic responses and seismic damage indices. The effectiveness of the proposed method has been investigated through the numerical simulation study for a twenty-story frame structure with undamaged and damaged cases, and also different earthquake excitations.

이 연구는 구조물의 내진성능평가와 관련하여, 기설구조물의 현재 상태에서의 구조손상을 추정하고, 이를 반영하여 내진성능을 평가하도록 하는 절차를 제안하였다. 구조손상 추정을 위해서는 역섭동법을 사용하였고, 역섭동법의 단점을 극복하기 위하여 부분구조법과 Tikhonov의 정규화 방법을 도입하였다. 손상된 구조물의 내진성능 평가를 위하여 구조물의 지진응답과 해당 구조물의 지진손상지수를 이용하였고, 제안 방법을 20층 예제구조물에 적용하여 손상추정 결과를 반영하는 것의 영향을 분석하였다.

Keywords

Acknowledgement

Supported by : Korea Foundation of Science and Technology (KOSEF)

References

  1. Engineering Stuructures v.18 no.2 Adequate ductility in steel beams under earthquake-type loading Daali, M.L.;Korol, R.M.
  2. The Shock and Vibration. Diegest v.30 no.2 A summary review of vibration-based damage identification methods Doebling, S.W.;Farrar, C.R.;Prime, M.B.
  3. Journal of Applied Mechanics ASME v.65 no.4 Identification of a dynamic system using ambient vibration measurement Feng, M.;Kim, J.M.;Xue, H.
  4. Engineering Structures v.24 Multi-stage identification scheme for detecting damage in cable-stayed Kap Shui Mun Bridge Ko, J.M.;Sun, Z.G.;Ni, Y.Q.
  5. Engineering Structures v.19 no.12 Estimation of system level ductility demands for multi-story structures Lee, D.G.;Song, J.K.;Yun, C.B.
  6. Journal Structural Engineering, ASCE v.111 Mechanistic seismic damage model for reinforced concrete Park, Y.J.;Ang, A.H.S.
  7. Journal of Structural Engineering ASCE v.119 no.6 Seismic behavior of moment-resisting steel frames: analytical study Roeder, C.W.;Schneider, S.P.;Carpenter, J.E.
  8. Vibration based inspection of civil engineering structures Rytter, A.
  9. Engineering Structures v.23 Ambient vibration and seismic evaluation of a cantilever truss bridge Shama, A.A.;Mander, J.B.;Chen, S.S.;Aref, A.J.
  10. Journal of Structural Engineering, ASCE v.117 no.1 Establishing R(or $R_w$) and $C_d$ factors for building seismic provisions Uang, C.M.
  11. Engineering Structures v.24 Sensitivity studies of parameters for damage detection of plate-like structures using static and dynamic approaches Yam, L.H.;Li, Y.Y.;Wong, W.O.
  12. Journal of Structural Engineering, ASCE v.126 no.4 Statistical damage assessment of framed structures from static response Yeo, I.H.;Shin, S.B.;Lee, H.S.;Chang, S.P.
  13. Computers and Structures v.77 Substructural identification using neural networks Yun, C.B.;Bahng, E.Y.