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Dynamic Response of Steel Box Girder under Internal Blast Loading
Joint Authors
Yao, Shujian
Zhao, Nan
Jiang, Zhigang
Zhang, Duo
Lu, Fangyun
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-29
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
This paper aims at investigating the dynamic response of the steel box girder under internal blast loads through experiments and numerical study.
Two blast experiments of steel box models under internal explosion were conducted, and then, the numerical methods are introduced and validated.
The dynamic response process and propagation of the internal shock wave of a steel box girder under internal blast loading were investigated.
The results show that the propagation of the internal shock wave is very complicated.
A multi-impact effect is observed since the shock waves are restricted by the box.
In addition, the failure modes and the influence of blast position as well as explosive mass were discussed.
The holistic failure mode is observed as local failure, and there are two failure modes for the steel box girder's components, large plastic deformation and rupture.
The damage features are closely related to the explosive position, and the enhanced shock wave in the corner of the girder will cause severe damage.
With the increasing TNT mass, the crack diameter and the deformation degree are all increased.
The longitudinal stiffeners restrict the damage to develop in the transverse direction while increase the crack diameter along the stiffener direction.
American Psychological Association (APA)
Yao, Shujian& Zhao, Nan& Jiang, Zhigang& Zhang, Duo& Lu, Fangyun. 2018. Dynamic Response of Steel Box Girder under Internal Blast Loading. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1116987
Modern Language Association (MLA)
Yao, Shujian…[et al.]. Dynamic Response of Steel Box Girder under Internal Blast Loading. Advances in Civil Engineering No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1116987
American Medical Association (AMA)
Yao, Shujian& Zhao, Nan& Jiang, Zhigang& Zhang, Duo& Lu, Fangyun. Dynamic Response of Steel Box Girder under Internal Blast Loading. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1116987
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116987