Investigation of the Simultaneous Effects of Seismic and Explosive Loading in RC Frames

Authors

1 Department of Civil Engineering, University of Bonab, Bona, East Azerbaijan, Iran

2 Department of Civil Eng., University of Bonab, Bonab, East Azerbaijan, Iran.

3 Department of Civil Engineering, University of Bonab, Bonab, East Azerbaijan. Iran

10.22034/ceej.2024.61249.2348

Abstract

Earthquakes and explosions are the most destructive dynamic loads that can cause

severe damages to the structures.Due to the difference in the nature of blast and earthquake loads, there

has been very little research in this area, which doubles the importance of the issue. In this research, a two-dimensional three-spanned RC frame with three floors was modeled and analyzed using ABAQUS/Explicit finite element software. Twelve different scenarios of concurrent earthquake and explosion

loads are considered and the most critical simultaneous state is identified here.

The most important findings show that in all three modes of explosion location

including in front of the frame, lateral explosion and internal explosion, in the case

where the seismic load and the explosion are orthogonal to each other, more

damage is observed in the structure in compare to the case of aligned loading.

Damage caused by explosion in frontal explosion mainly affects the columns and

foundation of the column. Damage caused by lateral explosion mostly affect the

beams. And finally, damage caused by internal explosion, affect the beams and

columns of the span where the explosive is located. Among the scenarios in which

the explosion occurs during earthquake's strong movements are more critical than

the scenarios in which the explosion occurs before the earthquake

Keywords

Main Subjects

Journal of Civil and Environmental Engineering

Articles in Press, Accepted Manuscript
Available Online from 09 July 2024

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