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http://dx.doi.org/10.4334/JKCI.2014.26.6.715

Progressive Collapse Analysis of Reinforced Concrete Core Structure Subjected to Internal Blast Loading  

Kim, Han-Soo (Dept. of Architectural Engineering, Konkuk University)
Ahn, Jae-Gyun (Dept. of Architectural Engineering, Konkuk University)
Ahn, Hyo-Seong (Dept. of Architectural Engineering, Konkuk University)
Publication Information
Journal of the Korea Concrete Institute / v.26, no.6, 2014 , pp. 715-722 More about this Journal
Abstract
In this paper, internal blast effect of reinforced concrete core structure were investigated using Ansys Autodyn, which is a specialized hydrocode for the analysis of explosion and impact. It is expected that internal blast case can give additional damage to the structure because it causes rebound of blast loads. Therefore, in this paper, the hazard of internal blast effect is demonstrated using UFC 3-340-02 criteria. In addition, analysis result of Autodyn, experimental result regarding rebound of blast load, and example of UFC 340-02 are compared to verify that Autodyn can analyze internal blast effect properly. Furthermore, progressive collapse mechanism of core structure which is one of the most important parts in high rise buildings is also analyzed using Autodyn. When internal blasts are loaded to core structure, the core structure is mostly damaged on its corner and front part of core wall from explosives. Therefore, if the damaged parts of core wall are demolished, progressive collapse of the core structure can be initiated.
Keywords
internal blast analysis; RC core structure; progressive collapse; autodyn;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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