Numerical Assessment of Reinforcing Details in Beam-Column Joints on Blast Resistance

Kwang Mo Lim, Hyun Oh Shin, Dong Joo Kim, Young Soo Yoon, Joo Ha Lee

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This numerical study investigated the effects of different reinforcing details in beam-column joints on the blast resistance of the joints. Due to increasing manmade and/or natural high rate accidents such as impacts and blasts, the resistance of critical civil and military infrastructure or buildings should be sufficiently obtained under those high rate catastrophic loads. The beam-column joint in buildings is one of critical parts influencing on the resistance of those buildings under extreme events such as earthquakes, impacts and blasts. Thus, the details of reinforcements in the joints should be well designed for enhancing the resistance of the joints under the events. Parameters numerically investigated in this study include diagonal, flexural, and shear reinforcing steel bars. The failure mechanism of the joints could be controlled by the level of tensile stress of reinforcing steel bars. Among various reinforcing details in the joints, diagonal reinforcement in the joints was found to be most effective for enhancing the resistance under blast loads. In addition, shear reinforcements also produced favourable effects on the blast resistance of beam-column joints.

Original languageEnglish
Pages (from-to)87-96
Number of pages10
JournalInternational Journal of Concrete Structures and Materials
Volume10
DOIs
Publication statusPublished - 2016 Sep 1

Keywords

  • beam-column connections
  • blast resistance
  • numerical analysis
  • reinforcement

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ocean Engineering

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