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http://dx.doi.org/10.5659/JAIK_SC.2018.34.12.11

Experimental Study on Seismic Performance Enhancement of Exposed Column-base Plate Strong-axis Connections for Small-Sized Steel Buildings  

You, Young-Chan (Department of Building Safety Research Center, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of the Architectural Institute of Korea Structure & Construction / v.34, no.12, 2018 , pp. 11-20 More about this Journal
Abstract
The purpose of this study is to investigate the seismic performance of exposed column-base plate strong-axis connections for small-sized steel buildings. Even though the seismic design for small-sized buildings became mandatory since Dec.2017, the arbitrary connection details in steel structure have been applied at the construction site, which is considered to be very insufficient to secure structural safety and stability considering the increased seismic risk. Therefore, a series of experimental test programs had been carried out to develop enhanced connection details in order to ensue the adequate seismic safety of small buildings. The hysteretic behavior of the exposed column-base plate connections commonly used in Korea seem to be very pure poor due to the "Rocking" phenomena between anchor plate and concrete by the residual plastic deformation of anchor bolts. A series of hysteretic tests were conducted to find the solution to overcome the "Rocking" phenomena of the exposed column-base plate connections, finally the stable seismic behavior was obtained by uisng at least 8 anchor bolts with good bonding strength to the protptype specimen.
Keywords
Small-sized steel building; Exposed column-base plate connection; Seismic performance; Rocking; Energy dissipation capacity;
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