지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.27 No.2
- 발행연도
- 2021.1
- 수록면
- 157 - 172 (16page)
이용수
초록· 키워드
오류제보하기
Precise knowledge of dynamic characteristics and data-driven inference of material properties of existing buildings are key for assessing their seismic capacity. While dynamic measurements on existing buildings are typically extracted under ambient conditions, masonry, in particular, exhibits nonlinear behavior at already very low shaking amplitudes. This implies that material properties, inferred via data-driven model updating under ambient conditions, may be inappropriate for predicting behavior under seismic actions. In addition, the relative amount of nonlinearity arising from structural behavior and soilstructure interaction are often unknown. In this work, Bayesian model updating is carried out on field measurements that are representative of increasing levels of shaking, as induced during demolition, on a pre-code masonry building. The results demonstrate that masonry buildings exhibit nonlinear behavior as the elastic modulus drops by up to 18% in the so-called equivalent elastic range, in which the observed frequency drop is reversible, prior to any visible sign of damage. The impact of this effect on the seismic assessment of existing structures is investigated via a nonlinear seismic analysis of the examined case study, calibrated under dynamic recordings of varying response amplitude. While limited to a single building, such changes in the inferred material properties results in a significant reduction of the safety factor, in this case by 14%.
목차
등록된 정보가 없습니다.
참고문헌 (80)
참고문헌 신청
Allemang, R. J. / 2003 / The modal assurance criterion–twenty years of use and abuse / Sound Vib 37(8):14~23
Ahmet Can Altunişik / 2018 / Sensitivity-Based Model Updating of Building Frames using Modal Test Data / KSCE Journal of Civil Engineering 22(10):4038~4046
Eliyar Asgarieh / 2012 / Nonlinear Structural Identification of a Three-Story Infilled Frame Using Instantaneous Modal Parameters / Topics in Modal Analysis II, Volume 6 6:669~674
Ariana Astorga / 2018 / Nonlinear Elasticity Observed in Buildings during a Long Sequence of Earthquakes / Bulletin of the Seismological Society of America 108(3A):1185~1198
Sezer Atamturktur / 2012 / Finite element model correlation and calibration of historic masonry monuments: review / The Structural Design of Tall and Special Buildings 21(2):96~113
Ahmet Can Altunişik / 2018 / Sensitivity-Based Model Updating of Building Frames using Modal Test Data / KSCE Journal of Civil Engineering 22(10):4038~4046
Eliyar Asgarieh / 2012 / Nonlinear Structural Identification of a Three-Story Infilled Frame Using Instantaneous Modal Parameters / Topics in Modal Analysis II, Volume 6 6:669~674
Ariana Astorga / 2018 / Nonlinear Elasticity Observed in Buildings during a Long Sequence of Earthquakes / Bulletin of the Seismological Society of America 108(3A):1185~1198
Sezer Atamturktur / 2012 / Finite element model correlation and calibration of historic masonry monuments: review / The Structural Design of Tall and Special Buildings 21(2):96~113
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