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Son, Gi-Sang
- Journal of the Korea Construction Safety Engineering Association
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- v.2 no.2 s.4
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- pp.74-81
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- 1992
본 논문보고서는 필자가 방문연구(91. 10. 1~01. 11. 25)를 수행한 독일 베를린 공대 토목공학과 철골연구소의 Prof. J. Lindner가 베를린 지역내 건축물설계검증사무소를 운영하면서 검증과 감리했던 구조물에 대해 10년간 통계를 ‘stahlbau' 연구지에 기고한 부분을 발췌ㆍ요약한 것이다. -필자 주-
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Gong, Ming;Park, Wonsuk
- KSCE Journal of Civil and Environmental Engineering Research
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- v.39 no.1
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- pp.147-154
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- 2019
The finite element model updating can be defined as the problem of finding the parameters of the finite element model which gives the closest response to the actual response of the structure by measurement. In the previous researches, optimization based methods have been developed to minimize the error of the response of the actual structure and the analytical model. In this study, we propose an inverse eigenvalue problem that can directly obtain the parameters of the finite element model from the target mode information. Deep Neural Networks are constructed to solve the inverse eigenvalue problem quickly and accurately. As an application example of the developed method, the dynamic finite element model update of a suspension bridge is presented in which the deep neural network simulating the inverse eigenvalue function is utilized. The analysis results show that the proposed method can find the finite element model parameters corresponding to the target modes with very high accuracy.
https://doi.org/10.12652/Ksce.2019.39.1.0147 인용 PDF KSCI HTML

Lim, Ju Eun;Lee, Jee Ho
- KSCE Journal of Civil and Environmental Engineering Research
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- v.29 no.5A
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- pp.495-501
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- 2009
In this paper, a numerical anchor bond-slip model is proposed to improve the numerical simulation of concrete-steel structures connected with steel anchor bolts and subjected to extreme cyclic loading. The suggested bond-slip model is composed of a group of nonlinear uniaxial connector elements and its parameters can be determined by calibrating the model with pull-out test data. Numerical analysis results from simulating a concrete foundation-steel column structure using the proposed bond-slip anchor model, which is implemented based on Abaqus elements, and the perfect-bond anchor model are compared with the experimental results. It is concluded that a reasonable anchor bond-slip model is required to realistically simulate concrete-steel structures subjected to extreme cyclic loading, and the proposed anchor bond-slip model shows acceptable performance in the present numerical analysis.
https://doi.org/10.12652/Ksce.2009.29.5A.495 인용 PDF