Seismic Behavior of Connection between RC Column and Steel Beam
|關鍵字:||複合構造;梁柱接頭;韌性;交會區;RCS;beam-to-column connection;ductility;panel zone|
This study is a sub-subject of an integrated composite structural behavior research plan. The goals of this study are to investigate the non-linear behavior and force transferred mechanism of the subassemblages of beam-to-column connection between reinforced concrete column and steel beam. Three specimens were designed to have connection details considering steel band, transverse beam, and configuration of lateral tie in the panel zone. Experimental results show that shear creaking first occurred on the concrete surface in the panel zone. Steel beam flange and web then yielded and plastic hinge formed at the beam end close to column. Local buckling took place at the beam flange and wed was observed, which resulted in decreasing of the connection strength. The mode of failure was the tearing of beam flange. Test results indicated that slightly non-linear behavior was occurred in the panel zone for all specimens in spite of different configurations of lateral ties used in the joint. The presence or not of the transverse beam led to different shear cracking pattern in the joint, but resulted in the same global behavior of specimens. Hysteretic diagrams revealed that specimens have enough strength and ductility. Inelastic deformation of specimens mainly contributed from the steel beam. Columns of specimens remained elastic and it confirms to the design concept of strong column weak beam. Energy dissipation was provided mainly through the plastic hinge formation of the steel beam.
|Appears in Collections:||Thesis|