Computers and Concrete

  • 제4권3호
  • /
  • Pages.167-186
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  • 2007
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Seismic damage estimation through measurable dynamic characteristics

  • Lakshmanan, N. (Structural Engineering Research Centre, CSIR Campus) ;
  • Raghuprasad, B.K. (Department of Civil Engineering, Indian Institute of Science) ;
  • Muthumani, K. (Structural Engineering Research Centre, CSIR Campus) ;
  • Gopalakrishnan, N. (Structural Engineering Research Centre, CSIR Campus) ;
  • Sreekala, R. (Structural Engineering Research Centre, CSIR Campus)
  • 투고 : 2006.05.30
  • 심사 : 2007.05.10
  • 발행 : 2007.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

Ductility based design of reinforced concrete structures implicitly assumes certain damage under the action of a design basis earthquake. The damage undergone by a structure needs to be quantified, so as to assess the post-seismic reparability and functionality of the structure. The paper presents an analytical method of quantification and location of seismic damage, through system identification methods. It may be noted that soft ground storied buildings are the major casualties in any earthquake and hence the example structure is a soft or weak first storied one, whose seismic response and temporal variation of damage are computed using a non-linear dynamic analysis program (IDARC) and compared with a normal structure. Time period based damage identification model is used and suitably calibrated with classic damage models. Regenerated stiffness of the three degrees of freedom model (for the three storied frame) is used to locate the damage, both on-line as well as after the seismic event. Multi resolution analysis using wavelets is also used for localized damage identification for soft storey columns.

키워드

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피인용 문헌

  1. Identification of reinforced concrete beam-like structures subjected to distributed damage from experimental static measurements vol.5, pp.1, 2008, https://doi.org/10.12989/cac.2008.5.1.037
  2. Detection of contiguous and distributed damage through contours of equal frequency change vol.329, pp.9, 2010, https://doi.org/10.1016/j.jsv.2009.11.006
  3. Comparative study on damage identification from Iso-Eigen-Value-Change contours and smeared damage model vol.35, pp.6, 2007, https://doi.org/10.12989/sem.2010.35.6.735
  4. Global seismic damage assessment of high-rise hybrid structures vol.8, pp.3, 2007, https://doi.org/10.12989/cac.2011.8.3.311