Title: Composite slab effects on self-centering connections with steel beams post-tensioned to a CFT column
Authors: Chou Chung-Che
Wang Yu-Chi
Chen Jun-Hen
Tsai Keh-Chyuan
交大名義發表
National Chiao Tung University
Keywords: composite slab;self-centering connection;steel beam;CFT column
Issue Date: 2006
Abstract: Four two-sided moment connections with steel beams post-tensioned to a concrete filled tubular (CFT) column were tested to investigate the effectiveness of using Reduced Flange Plates (RFPs) for energy dissipation. A composite slab was included in one alternate specimen to study the effects of a composite slab on self-centering cyclic behavior.Test results and correlation studies of a test specimen using a general-purpose nonlinear finite element analysis program ABAQUS (2003) showed that energy dissipation of the connection was substantially improved with the inclusion of the buckling-restrained RFPs. Connection strengths in positive moment were similar but in negative moment were increased on the order of 46 percent compared to the bare steel specimen so that the self-centering capability of the composite specimen was not observed during test. The composite slab, however, prevented beam's top flange from local buckling and reduced loss of the initial post-tensioning force at large inter story drifts.
URI: http://hdl.handle.net/11536/17531
Journal: 8th International Conference on Steel-Concrete Composite and Hybrid Structures, Proceedings
Begin Page: 418
End Page: 425
Appears in Collections:Conferences Paper