Updating the finite element model of bridge structures by an improved Taguchi updating method

Y. Liu, H. Li, Z. Duan, Y. Yao

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

In the procedure of model updating, the objective function is usually set as the weighted sum of the difference between analytical and experimental dynamic characteristics of structures. But it is difficult to select the weighting factors since the relative importance of each parameter to the updated results is not obvious but specific for different problem. To overcome this problem, multi-objective genetic algorithm (GA) is introduced into model updating since there is no need for selecting weighting values. However, the present updating methods based on GA is difficult to be applied to update the finite element model of civil structures by reason of low efficiency. To develop an efficient multi-objective updating method, an improved Taguchi updating method is proposed, which has the ability to solve the multi-objective optimization problem by introducing the classification of searching population and the new objective function. And then a parameterizing scheme for structural boundary condition is proposed, and the proposed updating method is employed to update boundary conditions of a truss bridge structure.

Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management
Pages795-802
Number of pages8
Publication statusPublished - 2010
Externally publishedYes
Event5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010 - Philadelphia, PA, United States
Duration: 11 Jul 201015 Jul 2010

Publication series

NameBridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management

Conference

Conference5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010
Country/TerritoryUnited States
CityPhiladelphia, PA
Period11/07/1015/07/10

Keywords

  • Model updating
  • Multi-objective optimization technique
  • Orthogonal arrays
  • Taguchi method

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Building and Construction

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