Numerical and Analytical Assessment of a Novel Metallic Yielding Damper

Please enable javascript in your browser.

Samadi, Forough | 2017

954 Viewed

Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 50892 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Mofid, Masoud; Khezrzadeh, Hamed
Abstract:
In this study, a new type of yielding metal dampers is proposed and evaluated numerically in finite element software. The damper consists of three main components, the core, the surrounding shell and the shear plates. These three components are interconnected in parallel and They are designed in such a way that when the system is under axial loading, the plates are much weaker than the shell and the core to remain in operation and elastic behavior until the end of the system and only the plates absorb the energy of the incident with their inertial shear behavior. This damper can be installed at the end of the Chevron braces, crossbar and diagonal. The use of the damper at the end of the bracket should be such that the brace remains intact and does not buckle. By studying the initial model and step by step improvement of it with considering the strain of plastic as its failure strain, we arrived at the effective model and, finally, the effect of different parameters was investigated. An analysis model for the behavior of this damper has been investigated and a bilinear curve for its behavior has been proposed
Keywords:
Dampers ; Structural Control ; Metallic-Yielding Dampers ; Shear Yielding ; Energy Dissipation

No TOC