Behavior of beam-column bolted end-plate connections under blast

	Behavior of beam-column bolted end-plate connections under blast
علوم و فناوریهای پدافند نوین
Article 3, Volume 4, Issue 2 - Serial Number 12, November 2013, Pages 93-101 PDF (6.63 M)
Authors
S. Amiroddin Sadrnejad; Masoud Ziaei^*
Receive Date: 30 January 2019, Revise Date: 16 July 2025, Accept Date: 30 January 2019
Abstract
Considering passive defense in construction and rehabilitation of military and residential structures is a proper method for blast-induced damage mitigation. In this paper, the behavior of end plate bolted connections under blast is studied. To assure the accuracy of finite element models, verification is carried out using the results of an experimental test.. A 5-story structure is designed according to national steel structures code using ETABS and one of the first storey connections is studied under blast load using nonlinear dynamic analysis in ABAQUS considering the effects of high strain rates. The results show that the beam experiences significant torsion. Moreover, the critical area in moment connection is the area adjacent to lower bolt holes as well as the area between end plate and lower beam flange. It is also observed that the use of small bolts in higher number provides more desirable response in blast loading.
Keywords
Passive Defense; end plate bolted connection; Finite Element Method; Nonlinear dynamic analysis

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