Experimental study of a new bar damper device for vibration control of structures subjected to earthquake loads
Document Type
Article
Publication Date
1-28-2021
Abstract
A new yielding damper, called Bar Damper (BD), made of a number of solid bars sandwiched between two plates is introduced in this paper. Based on a simplified mechanical modeling, design parameters were formulated. The device is shown to have stable hysteretic behavior under cyclic loads. The device is capable of undergoing large displacements without significant strength and stiffness degradation. The slenderness ratio of the bars is a crucial design parameter controlling the effective stiffness and energy dissipation capacity of the dampers. Strength of the devices estimated from theoretical models developed herein is found to be consistent with experimental results.
Keywords
Metallic Bar Damper, Direction-Independent Damper, Earthquake-Resistant Device, Seismic Protection, Structural Vibration Control, Earthquake Engineering
Divisions
sch_civ
Publication Title
Journal of Earthquake Engineering
Volume
25
Issue
2
Publisher
Taylor & Francis Ltd
Publisher Location
2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND