Journal of Structural and Construction Engineering

Journal of Structural and Construction Engineering

Cyclic Behavior of a Multi-Level Yielding Damper with Innovative Pipe Geometry: A Numerical and Experimental Study

Document Type : Original Article

Authors
1 Ph.D. Candidate, Department of Civil Engineering, Ta. C., Islamic Azad University, Tabriz, Iran
2 Assistant Professor, Department of Civil Engineering, Ta. C., Islamic Azad University, Tabriz, Iran
3 Professor, Structural Engineering Department, Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran
4 Professor, Department of Civil Engineering, Ta. C., Islamic Azad University, Tabriz, Iran
10.22065/jsce.2026.558773.3869
Abstract
Multi-stage yielding dampers are developed versions of yielding metallic dampers and belong to passive energy dissipation devices. In this paper, a Multi-level Performance Damper featuring a novel configuration and a feasible geometry is proposed for improving the seismic behavior of structural systems. The core of the proposed configuration consists of two concentric steel pipes coupled with tension components comprising slotted steel plates and steel rods. In this configuration, the force transfer mechanism utilizes the contact property between the components. The cyclic behavior of a pipe specimen was experimentally determined in the laboratory. The experimental data was utilized to establish a benchmark Finite Element model and evaluate its accuracy. Subsequently, analytical models of the damper were developed using the ABAQUS Finite Element software. To investigate the effect of variations in the diameter and dimensions of the steel pipes, the behavior of fourteen numerical specimens with different diameters and thicknesses was numerically studied. dissipation capacity at the secondary performance level, following the failure of the inner pipe. Due to the stability of the outer pipe and tension components, this damper provides sufficient energy absorption capacity, particularly for structural control against large displacements. Based on the obtained results, the equivalent viscous damping ratio for the numerical specimen’s ranges from 17% to 32%. By investigating the performance of the proposed damper, it was observed that the suggested configuration exhibits stable behavior and provides the capability to offer parameters such as stiffness, strength, and energy dissipation at two distinct levels, depending on the structural requirements.
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Articles in Press, Accepted Manuscript
Available Online from 24 May 2026

  • Receive Date 28 November 2025
  • Revise Date 27 February 2026
  • Accept Date 24 May 2026