Blast analysis of concrete arch structures for FRP retrofitting design

Jin-Won Nam , Ho-Jin Kim , Na-Hyun Yi , In-Soon Kim , Jang-Ho Jay Kim , Hyung-Jin Choi

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.

Key Words

blast analysis procedure; concrete arch structure; preliminary analysis; breach/debris analysis; retrofit material analysis; FRP retrofitting; blast retrofit design.

Address

Jin-Won Nam — Department of Civil and Environmental Engineering, University of California, Davis One Shield Ave., Davis, CA 95616, U.S.A. School of Civil and Environmental Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, South Korea
Ho-Jin Kim — Institute of Technology Research Planning Team, ATMACS Co., Ltd.513-22 Sangdaewon-dong, Jungwon-gu, Seongnam-si, Gyunggi-do 462-120, South Korea
Na-Hyun Yi — School of Civil and Environmental Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, South Korea
In-Soon Kim — School of Civil and Environmental Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, South Korea
Jang-Ho Jay Kim — School of Civil and Environmental Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, South Korea
Hyung-Jin Choi — Karagozian & Case 2550 N, Hollywood Way Suite 500, Burbank, CA 91505, U.S.A.

PDF Viewer

Preview is limited to the first 3 pages. Sign in to access the full PDF.

← Back to Volume 6, No. 4