Experimental Evaluation of Prestressed Concrete Panels Under Blast-Fire Combined Loading
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 a 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 1,400 mm × 1,000 mm × 300 mm PSC specimens.Blast loading tests were performed by the detonation of 55 lbs 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.Finally, the experimental results of PSC members under blast-fire combined load were verified by precision analysis.The results can be used as basic research references for related research areas, which include protective design simulation under blast-fire combined loading.
extreme loading bi-directional unbonded PSC blast loading fire loading blast-fire combined loading
Ji-Hun Choi Tae-Hee Lee Seung-Jai Choi Jang-Ho Jay Kim
School of Civil and Environmental Engineering, Yonsei University, Seoul, South Korea
国际会议
福州
英文
1015-1024
2018-11-04（万方平台首次上网日期，不代表论文的发表时间）