Flexural ductility of high strength steel girder in negative moment region

Hyun Sung Joo, Jung Kyun Kim, Byung Ho Choi, Hak Eun Lee

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

Abstract

For I-girder with high strength steel, it is known that the flexural ductility is considerably decreased by increasing the yield strength of material. Thus, it is necessary to conduct a study for guaranteeing proper flexural ductility of I-girder with high-strength steel. In this study, the evaluation of flexural ductility of negative moment region of I-girder with high strength steel where yield stress of steel is 690Mpa is presented based on the results of finite element analysis and experiment. From the results, it is found that the flexural ductility of the I-girder is significantly reduced due to the increase of elastic deformation and the decrease of plastic deformation ability of the material when the yield strength increases. This study proposed equation predicted flexural ductility of high strength steel in negative moment region. It is also proposed the method to improve the flexural ductility by an unequal installation of cross beam and an optimal position of cross beam. Finally, the effects of the unequal installation of cross beam on the flexural ductility are discussed based on the finite element results and the experimental results.

Original languageEnglish
Title of host publicationApplied Mechanics and Materials
Pages39-43
Number of pages5
Volume174-177
DOIs
Publication statusPublished - 2012 Jun 5
Event2nd International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2012 - Yantai, China
Duration: 2012 May 252012 May 27

Publication series

NameApplied Mechanics and Materials
Volume174-177
ISSN (Print)16609336
ISSN (Electronic)16627482

Other

Other2nd International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2012
CountryChina
CityYantai
Period12/5/2512/5/27

Keywords

  • Continuous bridge
  • Flexural ductility
  • High strength steel
  • I-girder
  • Negative moment region
  • Plate girder
  • Rotational capacity

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Joo, H. S., Kim, J. K., Choi, B. H., & Lee, H. E. (2012). Flexural ductility of high strength steel girder in negative moment region. In Applied Mechanics and Materials (Vol. 174-177, pp. 39-43). (Applied Mechanics and Materials; Vol. 174-177). https://doi.org/10.4028/www.scientific.net/AMM.174-177.39