A Hybrid Surrogate Model for the Prediction of Solitary Wave Forces on the Coastal Bridge Decks

被引:17
|
作者
Wang, Jinsheng [1 ]
Xue, Shihao [1 ]
Xu, Guoji [1 ]
机构
[1] Southwest Jiaotong Univ, Sch Civil Engn, Chengdu 610031, Peoples R China
基金
中国国家自然科学基金;
关键词
hybrid surrogate model; wave force prediction; coastal bridges; risk assessment; life-cycle structural design and analysis; POLYNOMIAL CHAOS; SIMULATION; FRAGILITY; DAMAGE;
D O I
10.3390/infrastructures6120170
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
To facilitate the establishment of the probabilistic model for quantifying the vulnerability of coastal bridges to natural hazards and support the associated risk assessment and mitigation activities, it is imperative to develop an accurate and efficient method for wave forces prediction. With the fast development of computer science, surrogate modeling techniques have been commonly used as an effective alternative to computational fluid dynamics for the establishment of a predictive model in coastal engineering. In this paper, a hybrid surrogate model is proposed for the efficient and accurate prediction of the solitary wave forces acting on coastal bridge decks. The underlying idea of the proposed method is to enhance the prediction capability of the constructed model by introducing an additional surrogate to correct the errors made by the main predictor. Specifically, the regression-type polynomial chaos expansion (PCE) is employed as the main predictor to capture the global feature of the computational model, whereas the interpolation-type Kriging is adopted to learn the local variations of the prediction error from the PCE. An engineering case is employed to validate the effectiveness of the hybrid model, and it is observed that the prediction performance (in terms of residual mean square error and correlation coefficient) of the hybrid model is superior to the optimal PCE and artificial neural network (ANN) for both horizontal and vertical wave forces, albeit the maximum PCE degrees used in the hybrid model are lower than the optimal degrees identified in the pure PCE model. Moreover, the proposed hybrid model also enables the extraction of explicit predictive equations for the parameters of interest. It is expected that the hybrid model could be extended to more complex wave conditions and structural shapes to facilitate the life-cycle structural design and analysis of coastal bridges.
引用
收藏
页数:13
相关论文
共 50 条
  • [1] Prediction of Solitary Wave Forces on Coastal Bridge Decks Using Artificial Neural Networks
    Xu, Guoji
    Chen, Qin
    Chen, Jianhua
    JOURNAL OF BRIDGE ENGINEERING, 2018, 23 (05)
  • [2] Spectral Analysis and Prediction of the Wave Forces Acting on Coastal Bridge Decks
    Fang, Qinghe
    Zhou, Jianjun
    Zhou, Peng
    KSCE JOURNAL OF CIVIL ENGINEERING, 2021, 25 (05) : 1826 - 1836
  • [3] Spectral Analysis and Prediction of the Wave Forces Acting on Coastal Bridge Decks
    Qinghe Fang
    Jianjun Zhou
    Peng Zhou
    KSCE Journal of Civil Engineering, 2021, 25 : 1826 - 1836
  • [4] Investigating the Characteristics of the Solitary Wave-Induced Forces on Coastal Twin Bridge Decks
    Xu, Guoji
    Cai, C. S.
    Han, Y.
    JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES, 2016, 30 (04)
  • [5] Numerical prediction of solitary wave forces on a typical coastal bridge deck with girders
    Xu, Guoji
    Cai, Chunsheng
    Deng, Lu
    STRUCTURE AND INFRASTRUCTURE ENGINEERING, 2017, 13 (02) : 254 - 272
  • [6] Wave Forces on Biloxi Bay Bridge Decks with Inclinations under Solitary Waves
    Xu, Guoji
    Cai, C. S.
    JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES, 2015, 29 (06)
  • [7] Effects of air relief openings on the mitigation of solitary wave forces on bridge decks
    Sheng-chao Xiao
    An-xin Guo
    Journal of Hydrodynamics, 2019, 31 : 594 - 602
  • [8] Effects of air relief openings on the mitigation of solitary wave forces on bridge decks
    Xiao, Sheng-chao
    Guo, An-xin
    JOURNAL OF HYDRODYNAMICS, 2019, 31 (03) : 594 - 602
  • [9] Experimental Investigation of Wave Forces on Coastal Bridge Decks Subjected to Oblique Wave Attack
    Fang, Qinghe
    Hong, Rongcan
    Guo, Anxin
    Li, Hui
    JOURNAL OF BRIDGE ENGINEERING, 2019, 24 (04)
  • [10] EXPERIMENTAL STUDY OF WAVE FORCES ON BRIDGE DECKS
    Edge, Billy L.
    McPherson, Ronald
    Cruz-Castro, Oscar
    COASTAL ENGINEERING 2008, VOLS 1-5, 2009, : 3567 - +