Vol. 8, No. 3, pp. 226-241 (2012)
AN EXPERIMENTAL STUDY ON SANDWICH COMPOSITE
PANEL INFILLED STEEL FRAMES
Hetao Hou 1,2,3*, Canxing Qiu 1, Jingfeng Wang 4 and GuoQiang Li 3
1 Associate Professor, School of Civil Engineering, Shandong University, Jinan, China
2 Postdoctor, Laiwu Steel Group Limited, Laiwu, Shandong, China
3 Professor, School of Civil Engineering, Tongji University, Shanghai, China
4 Associate Professor, School of Civil Engineering, Hefei University of Technology, Hefei, China
*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 31 May 2011; Revised: 28 August 2011; Accepted: 23 September 2011
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ABSTRACT
Cyclic loading tests on eight full-scale one storey, one-bay test specimens were carried out to study the hysteretic behavior of steel frames infilled with sandwich composite panels. Six main influential parameters, including panel thickness, panel type, panel position, column orientation, beam-to-column connection type and connecting method of panel to steel frame are considered. Based on the experimental phenomena, seismic behaviors of specimens were reflected by hysterics loops, skeleton curves, curves of strength degradation, curves of stiffness degradation, ductility coefficient and equivalent damping coefficient. Test results show that the failure modes of panels and steel frames are concrete spalling around the embedded parts, weld fracture, and local buckling of beam, respectively. The integrity of the panel is better than the traditional walls. The success of connection between panel and steel frame is significant to the mutual work of the two parts. Both of increasing the panel thickness and strengthening the connection can improve the seismic behavior of structure. At the end of the paper, seismic design recommendations based on the analysis of ductility index and energy dissipation of the structures are presented.
KEYWORDS
Composite panels, Steel frames, Hysteretic behavior, Low cyclic loading tests
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