Dynamic experimental study of viscous damper on Chinese traditional style structure with dual‐lintel‐column joint of steel and composite structures

Abstract

SummaryIn order to analyze the dynamic mechanical properties of viscous damper on the concrete Chinese traditional style structure with dual‐lintel‐column joints under seismic excitation, we designed 3 specimens for dynamic cyclic loading, including 2 specimens with viscous damper, which called controlled structure and 1 specimen without viscous damper called noncontrolled structure. The failure process and corresponding failure mode were obtained. The failure characteristics, skeleton curves, and mechanical behavior such as the load‐displacement hysteretic loops, degradation of strength and rigidity, ductility and energy dissipation of the joints and the load‐displacement hysteretic loops of viscous damper were analyzed. Results indicate that the hysteretic curve of viscous damper on the concrete Chinese traditional style structure with dual‐lintel‐column joints and viscous damper are plumper, and the structure has good ductility and capacity of energy dissipation. In the study, the concrete Chinese traditional style structure with dual‐lintel‐column joints and viscous damper can work together in conjunction. The load‐bearing capacity of the controlled structure is significantly higher than that of the noncontrolled structure; the performance of ductility and the ability of energy dissipation are superior to those of the noncontrolled structure. All experimental results reflect that the seismic performance of the controlled structure is significantly superior to that of the noncontrolled structure.