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http://dx.doi.org/10.4334/JKCI.2017.29.3.237

Damage Evaluation of Bi-directionally Prestressed Concrete Panels under Blast-fire Combined Loading  

Choi, Ji-Hun (School of Civil and Environmental Engineering, Yonsei University)
Choi, Seung-Jai (School of Civil and Environmental Engineering, Yonsei University)
Kim, Tae-Kyun (School of Civil and Environmental Engineering, Yonsei University)
Kim, Jang-Ho Jay (School of Civil and Environmental Engineering, Yonsei University)
Publication Information
Journal of the Korea Concrete Institute / v.29, no.3, 2017 , pp. 237-248 More about this Journal
Abstract
Frequent terror or military attack by explosion, impact, fire accidents have occurred recently. These attacks and incidents raised public concerns and anxiety of potential terrorist attacks on important infrastructures. However, structural behavioral researches on prestressed concrete (PSC) infrastructures such as Prestressed Concrete Containment Vessel (PCCV) and Liquefied Natural Gas (LNG) storage tanks under extreme loading are significantly lacking at this time. Also, researches on possible secondary fire scenarios after terror and bomb explosion has not been performed yet. Therefore, a study on PSC structural behavior from an blast-induced fire scenario was undertaken. To evaluate the blast-fire combined resistance capacity and its protective performance of bi-directional unbonded PSC member, blast-fire tests were carried out on $1,400mm{\times}1,000mm{\times}300mm$ PSC specimens. Blast loading tests were performed by the detonation of 25 kg ANFO explosive charge at 1.0 m standoff distance. Also, fire and blast-fire combined loading were tested using RABT fire loading curve. The test results are discussed in detail in the paper. The results can be used as basic research references for related research areas, which include protective design simulation under blast-fire combined loading.
Keywords
extreme loading; bi-directional unbonded PSC; blast loading; fire loading; blast-fire combined loading;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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