Computers and Concrete

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Blast analysis of concrete arch structures for FRP retrofitting design

  • Nam, Jin-Won (Department of Civil and Environmental Engineering, University of California, School of Civil and Environmental Engineering, Yonsei University) ;
  • Kim, Ho-Jin (Institute of Technology Research Planning Team, ATMACS Co., Ltd.) ;
  • Yi, Na-Hyun (School of Civil and Environmental Engineering, Yonsei University) ;
  • Kim, In-Soon (School of Civil and Environmental Engineering, Yonsei University) ;
  • Kim, Jang-Ho Jay (School of Civil and Environmental Engineering, Yonsei University) ;
  • Choi, Hyung-Jin (Karagozian & Case)
  • Received : 2006.11.28
  • Accepted : 2009.06.17
  • Published : 2009.08.25
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Abstract

Fiber Reinforced Polymer (FRP) is widely used for retrofitting concrete structures for various purposes. Especially, for the retrofitting of concrete structures subjected to blast loads, FRP is proven to be a very effective retrofitting material. However, a systematic design procedure to implement FRP for concrete structure retrofitting against blast loads does not exist currently. In addition, in case of concrete structures with inarticulate geometrical boundary conditions such as arch structures, an effective analysis technique is needed to obtain reliable results based on minimal analytical assumptions. Therefore, in this study, a systematic and efficient blast analysis procedure for FRP retrofitting design of concrete arch structure is suggested. The procedure is composed of three sequential parts of preliminary analysis, breach and debris analysis, and retrofit-material analysis. Based on the suggested procedure, blast analyses are carried out by using explicit code, LS-DYNA. The study results are discussed in detail.

Keywords

Acknowledgement

Supported by : KOSEF, KRF

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