Evaluation of load carrying capacity of a PC girder bridge using model updating techniques

Hyun Sung Park, Young Soo Park, Jong Jae Lee, Jun g Sik Kong, Chang Geun Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Load carrying capacities of exciting bridges need to be properly assessed for the safe operation and efficient maintenance of bridges. Conventionally, the load carrying capacities of bridges have been evaluated from proof loading tests with test trucks by measuring static and dynamic responses, such as deflections or strains under known loading conditions. However, it is very hard to carry out loading tests on the expressway bridges with a large amount of traffic, since full or partial block of traffic during the tests may cause not only inconvenience to drivers but also increase of the logistic cost and time. To overcome these difficulties, an alternative method is proposed using ambient acceleration data without traffic control. The proposed method consists of ambient vibration measurement, experimental modal analysis, correction of the initial finite element (FE) model based on the identified modal properties, and estimation of the load carrying capacity using the updated FE model. The proposed method has been verified through field tests on a decommissioned prestressed concrete girder bridge by comparing with the results of the conventional truck loading tests.

Original languageEnglish
Title of host publication2011 International Conference on Multimedia Technology, ICMT 2011
Pages6349-6352
Number of pages4
DOIs
Publication statusPublished - 2011 Sep 23
Event2nd International Conference on Multimedia Technology, ICMT 2011 - Hangzhou, China
Duration: 2011 Jul 262011 Jul 28

Other

Other2nd International Conference on Multimedia Technology, ICMT 2011
CountryChina
CityHangzhou
Period11/7/2611/7/28

Keywords

  • Ambient vibration test
  • Load carrying capacity
  • Modal identification
  • Model updating

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction
  • Software

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  • Cite this

    Park, H. S., Park, Y. S., Lee, J. J., Kong, J. G. S., & Lee, C. G. (2011). Evaluation of load carrying capacity of a PC girder bridge using model updating techniques. In 2011 International Conference on Multimedia Technology, ICMT 2011 (pp. 6349-6352). [6003245] https://doi.org/10.1109/ICMT.2011.6003245