In order to investigate the seismic performance of a self-centering steel frame in-filled with butterfly-shaped steel plate walls, seven one-bay two-story large-scale structure specimens subjected to cyclic loading were tested.Based on the test results, the effects of the height to thickness ratio, height to width ratio of plate walls, the number of butterfly link stories of plate walls and the initial prestress on the load-carrying capacity, hysteretic behavior, energy-dissipation capacity and self-centering ability of specimens were studied.The experimental results show that the load-carrying capacity and energy-dissipation capacity of specimens are augmented with the increase of height to thickness and height to wide ratios of the plates.However, due to the increase of height to thickness ratio of the plates, the residual deformation of specimens increases obviously, while the height to width ratio of the plates has ignorable effect on it.The specimens with two link stories of in-filled plates are of larger load-carrying capacity and greater permanent deformation with an advantage of earlier energy-dissipation behavior of plates, but the final amount of consumed energy is identical.Besides, for those specimens with relatively larger prestress in strands, more robust load-carrying capacity, weaker energy-dissipation behavior and smaller residual deformation are observed.
Key words
self-centering /
seismic performance /
butterfly-shaped steel plate shear wall /
hysteretic behavior;residual deformation
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