Seismic behavior of beam-to-column connections used for steel special moment frame is studied. The connections studied are the type of welded unreinforced flange-welded web (WUF-W) moment connection. Characterized with thick beam flange, box column, and using the weld access hole recommended by AWS, the connections are intended to provide excellent ductile behavior. Two full-scale specimens were tested and the beam-to-column connection subassemblages were subjected to cyclic loading. Test results indicated that both specimens achieved 4% rad interstory drift angle, and the beams developed their plastic flexural strength. The failure of the specimens was the fracture of the beam flange caused by the cracking occurred at the beam flange complete joint penetration groove weld. Research results provide the practical application of the beam-to-column moment connection beyond the prequalified moment connection.
|Number of pages||5|
|Journal||Tumu Gongcheng Xuebao/China Civil Engineering Journal|
|State||Published - 1 Aug 2012|
- Beam-to-column connection
- Plastic hinge
- Weld access hole