Journal of South China University of Technology(Natural Science Edition) ›› 2019, Vol. 47 ›› Issue (2): 120-127.doi: 10.12141/j.issn.1000-565X.180154

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Spatial Alignment Grey Prediction of Specialshaped Arch Bridge Arch-rib Based on MGM( 1， n) Model

CHEN Deyi YAN Quansheng ZHU Shiyao    

  1.  School of Civil Engineering and Transportation，South China University of Technology，Guangzhou 510640，Guangdong，China
  • Received:2018-03-28 Revised:2018-07-18 Online:2019-02-25 Published:2019-01-02
  • Contact: 陈得意( 1987-) ，男，博士生，主要从事桥梁结构振动研究． E-mail:chen.deyi@mail.scut.edu.cn
  • About author:陈得意( 1987-) ，男，博士生，主要从事桥梁结构振动研究．
  • Supported by:
      Supported by the National Natural Science Foundation of China( 51478193， 51208208)

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Abstract: Combining the characteristics of grey prediction model and spatial alignment control of specialshaped arch bridge arch rib，a MGM( 1， 2) model for spatial alignment grey prediction of the specialshaped arch bridge archrib was established based on the grey system theory，and the model considered the axis deviation and arch rib rotation factors． On the basis of giving the concept and solution method of the MGM( 1， n) model，a corresponding program was compiled by using Matlab software platform． The experimental results based on engineering examples show that the predict results of the specialshaped arch bridge arch rib from MGM( 1， 2) model are in good agreement with the field test values，which demonstrates that the MGM( 1， 2) model for spatial alignment grey prediction of the specialshaped arch bridge arch rib is scientific and reasonable． 

Key words: MGM( 1, n) model, arch bridge, arch rib, alignment, grey prediction

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