Seismic response tests and analytical assessment of blind bolted assembly CFST frames with beam-connected SPSWs

摘要: Abstract This paper presents a series of experimental and analytical studies to investigate the seismic behavior blind bolted assembly concrete filled steel tube (CFST) frames with infill plate shear walls (SPSWs) connected beam only. Two specimens single-bay, two-story CFST beam-connected SPSWs were fabricated tested under lateral cyclic load combined constant vertical axial load. The test parameters include column section type, beam-SPSW connection type SPSW setting. Typical failure modes summarized discussed. results show that presence can compensate effectively relatively small stiffness bare frames, novel SPSW-frame system exhibited good hysteretic performance, ductility energy dissipation capacity. Moreover, moments at ends frame semi-rigid joints two partial loads resulting from are derived. A practical design method for is checking strength end joints, beams columns. accuracy also verified by results. study shows has potential application in earthquake resistant structures.