Cyclic Behavior of Hybrid Honeycomb- and- Flexural Yielding Dampers in Chevron CBFs

Authors

Faculty of Civil Engineering- Urmia University of Technology

Abstract

In this research, a passive energy dissipation device as a combination of a honeycomb structural fuse (HSF)-and-flexural yielding (ADAS) dampers has been numerically investigated under cyclic loading. ADAS plates are allowed to yield under flexural action, whereas HSF plates are allowed to dissipate energy through shear yielding. The effectiveness of the proposed model is validated through experimental results. There is an excellent agreement between numerical and experimental results. The numerical plan includes 15 models with different groups of dampers. The effects of various parameters including number of HSF plates, number of cell columns, thickness of ADAS plates and etc. on the performance charachteristics, i.e. initial stiffness, strength, ductility, and energy dissipation are investigated. Based on the results, shear strength and energy dissipation of the hybrid damper is at most 105% and 23%, more than the honeycomb counterpart dampers, respectively. A reduction in the number of honeycomb cell columns from four to two led to maximum 27% and 5% decreases in strength and energy dissipation capacity of the hybrid dampers, respectively. A 25% increase in the thickness of HSF and a 33% decrease in the thickness of ADAS led to a reduction of 35% and 72% in strength and energy dissipation, respectively.

Keywords

Main Subjects

Journal of Civil and Environmental Engineering

Articles in Press, Accepted Manuscript
Available Online from 24 April 2023

Files

Share

How to cite

Statistics