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http://dx.doi.org/10.12989/sem.2020.76.5.663

Partially restrained beam-column weak-axis moment connections of low-rise steel structures  

Lim, Woo-Young (Department of Architectural Engineering, Wonkwang University)
Lee, Dongkeun (Department of Civil Engineering, National Chiao Tung University)
You, Young-Chan (Department of Living and Built Environment Research, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Structural Engineering and Mechanics / v.76, no.5, 2020 , pp. 663-674 More about this Journal
Abstract
In this study, partially restrained beam-column moment joints in the weak-axis direction were examined using three large-scale specimens subject to cyclic loading in order to assess the seismic resistance of the joints of low-rise steel structures and to propose joint details based on the test results. The influence of different number of bolts on the moment joints was thoroughly investigated. It was found that the flexural capacity of the joints in the direction of weak axis was highly dependent on the number of high-tension bolts. In addition, even though the flexural connections subjected to cyclic loading was perfectly designed in accordance with current design codes, severe failure mode such as block shear failure could occur at beam flange. Therefore, to prevent excessive deformation at bolt holes under cyclic loading conditions, the holes in beam flange need to have larger bearing capacity than the required tensile force. In particular, if the thickness of the connecting plate is larger than that of the beam flange, the bearing capacity of the flange should be checked for structural safety.
Keywords
partially restrained beam-column weak-axis moment joints; cyclic loading tests; low-rise steel structures; high-tension bolts; bearing strength; block shear failure;
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Times Cited By KSCI : 5  (Citation Analysis)
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