Experiment research on Chinese antique buildings with dual-lintel-column joint of steel and composite structures

Abstract

ABSTRACT In order to study the mechanical behavior of Chinese traditional style architecture dual-lintel-column joint, typical Chinese traditional style architecture dual-lintel-column joint was selected as the model structure, specimens be adopted the steel-concrete composite structure and viscous dampers are set at the connection of lintel and column. Total 3 specimens were designed and test under fast harmonic load, including two specimens with viscous damper and one specimen without viscous damper. On the basis of experimental study, the key indexes of mechanical properties are analyzed, such as the load-displacement hysteretic curve of specimens and viscous damper, skeleton curve, load-bearing capacity and deformation performance, stiffness and strength degradation. The results indicate that mechanical properties of antique buildings dual-lintel-column subassemblages with steel and composite structures and viscous damper can significantly increase the mechanical properties, the hysteretic curve of the damping joint is plump. descending phase of skeleton curves is smoother, and the deformation capacity has been significantly improved. The carrying capacity is increased by 13.9%~14.1%, and Displacement ductility is increased by 13.0%~18.6%. The viscous damper and the dual-lintel-column subassemblages can work together, which can significantly improve the deformation performance of structures at the failure stage and enhance the collapse resistance of the structure.