Title |
A Structural Performance Evaluation of Timber Beam-Column Connections using Steel Connectors |
Authors |
박금성(Park, Keum-Sung) ; 오근영(Oh, Keun-Yeong) |
DOI |
https://doi.org/10.5659/JAIK.2022.38.3.223 |
Keywords |
Structural laminate timber; rebar embedding; connecting steel plate; beam-column connections; bending performance |
Abstract |
The purpose of this study is to develop a moment frame system of a mixed structure consisting of a beam-column connection made of
timber and a filling wall while verifying the structural performance of the beam-column connection using steel. The reinforcing rebar
embedded on the inside of the timber beam consisted of an internal and external connection. Two connections were fabricated for each
shape, and a lateral loading test was performed. The results of this experiment indicated that as the deformation of the inner and outer
connections increased, repeated attachment and bearing failure occurred on the part embedded at the end of the timber beam. In addition, the
fracture phenomenon of slipping was observed on the contact surface between the upper and lower flange plates of joined steel and the
timber beam. While comparing the experimental behavior and the allowable bending moment of the timber beam, it was revealed that the
intermediate moment frame (0.02 rad) performance of the internal connection was sufficiently secured. However, the external connection was
found to be inadequate to secure the performance of the intermediate moment frame. For the beam-column connection using steel to exhibit
special moment framing performance, the embedded length of the reinforcing bar embedded in the cross section of the timber beam needs to
be sufficient. |