Hybridizing finite element method and genetic algorithms to estimate bridge scour depths

Chung Wei Feng, Shen Haw Ju, Hsun Yi Huang

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

A hybrid model that combines finite element and genetic algorithms is developed to estimate the scour depth around bridge piers by using the natural frequency of the bridge structure. Scouring around bridge piers is an important safety issue of bridge management since it could lead to bridge slanting and collapsing. However, the mechanism of water flow around the pier structure is very complicated, which makes it is very difficult to develop a generic model to determine the scour depth and the bridge safety. Many researchers have tried to estimate the scour depths around bridge piers by simulating the bridge model with various factors, such as the depth of water, average velocity of flow, and diameter of sand. However most of models can only be applied to certain types of bridges under some predefined conditions. In this tusy, the finite element method is used to simulate various conditions by mesh such as pile foundations type, soil strength, and scour depth. Since simulations generate a huge amount of data, which makes it hard to analyze and find the relation between the scour depth and the natural frequency, genetic algorithms are used to find the fitted generic formula that defines the relationship between the scour depth and the natural frequency. In this paper, soil strength compare with natural frequency within different bridge scour depth is discussed.

原文English
主出版物標題Proceedings of the IASTED International Conference on Modelling and Simulation, MS 2012
頁面204-208
頁數5
DOIs
出版狀態Published - 2012
事件IASTED International Conference on Modelling and Simulation, MS 2012 - Banff, AB, Canada
持續時間: 2012 7月 32012 7月 5

出版系列

名字Proceedings of the IASTED International Conference on Modelling and Simulation
ISSN(列印)1021-8181

Other

OtherIASTED International Conference on Modelling and Simulation, MS 2012
國家/地區Canada
城市Banff, AB
期間12-07-0312-07-05

All Science Journal Classification (ASJC) codes

  • 軟體
  • 電腦科學應用
  • 建模與模擬

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