DOI QR코드

DOI QR Code

머신러닝 기법과 계측 모니터링 데이터를 이용한 광안대교 신축거동 모델링

Modeling on Expansion Behavior of Gwangan Bridge using Machine Learning Techniques and Structural Monitoring Data

  • Park, Ji Hyun (Busan Infrastructure Corporation) ;
  • Shin, Sung Woo (Department of Safety Engineering, Pukyong National University) ;
  • Kim, Soo Yong (Department of Civil Engineering, Pukyong National University)
  • 투고 : 2018.09.12
  • 심사 : 2018.10.06
  • 발행 : 2018.12.31

초록

In this study, we have developed a prediction model for expansion and contraction behaviors of expansion joint in Gwangan Bridge using machine learning techniques and bridge monitoring data. In the development of the prediction model, two famous machine learning techniques, multiple regression analysis (MRA) and artificial neural network (ANN), were employed. Structural monitoring data obtained from bridge monitoring system of Gwangan Bridge were used to train and validate the developed models. From the results, it was found that the expansion and contraction behaviors predicted by the developed models are matched well with actual expansion and contraction behaviors of Gwangan Bridge. Therefore, it can be concluded that both MRA and ANN models can be used to predict the expansion and contraction behaviors of Gwangan Bridge without actual measurements of those behaviors.

키워드

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Fig. 1. Expansion Joint Damage1).

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Fig. 2. Measured displacement data and sensor.

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Fig. 2. Artificial neural network model structure.

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Fig. 3. Prediction performance.

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Fig. 4. Comparison of actual and predicted values.

Table 1. Descriptive statistics

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Table 2. Design of artificial neural network model topology

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Table 3. Coefficients of multiple regression analysis model

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Table 4. Pearson's correlations

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Table 5. Training options

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Table 6. Independent variable importance

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Table 7. Comparison of predictive model validation

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