Analytical Investigation of the Structural Fuse Concept

 

Authors

Vargas, Ramiro; Bruneau, Michel

Format

Report

Status

publishedVersion

Description

Passive energy devices (PED) are useful to enhance structural performance by reducing seismically induced structural damage. Metallic dampers are one such PED. When they are designed such that all damage is concentrated on the PED devices, allowing the primary structure to remain elastic, they can be defined as structural fuses (SF). A comprehensive parametric study was conducted to investigate the structural fuse concept, and to identify combinations of key parameters essential to ensure adequate seismic performance for structural fuse systems. Non- linear time history analyses were conducted for several combinations of parameters, chosen to cover a range of feasible designs. Viable combinations of parameters are identified and used to provide guidelines to design and retrofit systems using Buckling-restrained Braces (BRBs), Triangular Added Damping and Stiffness (T- ADAS), and Shear Panels (SPs), examples of metallic dampers working as structural fuses. Studies focus on the application of the structural fuse concept to single- and multi-degree-of- freedom systems. Tables, many illustrations, and references are included.
Passive energy devices (PED) are useful to enhance structural performance by reducing seismically induced structural damage. Metallic dampers are one such PED. When they are designed such that all damage is concentrated on the PED devices, allowing the primary structure to remain elastic, they can be defined as structural fuses (SF). A comprehensive parametric study was conducted to investigate the structural fuse concept, and to identify combinations of key parameters essential to ensure adequate seismic performance for structural fuse systems. Non- linear time history analyses were conducted for several combinations of parameters, chosen to cover a range of feasible designs. Viable combinations of parameters are identified and used to provide guidelines to design and retrofit systems using Buckling-restrained Braces (BRBs), Triangular Added Damping and Stiffness (T- ADAS), and Shear Panels (SPs), examples of metallic dampers working as structural fuses. Studies focus on the application of the structural fuse concept to single- and multi-degree-of- freedom systems. Tables, many illustrations, and references are included.

Publication Year

2006

Language

eng

Topic

Passive energy devices (PED)
Structural performance
Seismic damage
Metallic dampers
Structural fuses (SF)
Parametric studies
Elasticity
Seismic performance
Retrofitting
Designs
Buckling-restrained braces (BRB)
Triangular added damping and stiffness (T- ADAS)
Shear panels (SP)
Single degree of freedom (SDOF) systems
Multidegree of freedom (MDOF) systems
Floor demands velocities
Accelerations
Nonstructural damage
Passive energy devices (PED)
Structural performance
Seismic damage
Metallic dampers
Structural fuses (SF)
Parametric studies
Elasticity
Seismic performance
Retrofitting
Designs
Buckling-restrained braces (BRB)
Triangular added damping and stiffness (T- ADAS)
Shear panels (SP)
Single degree of freedom (SDOF) systems
Multidegree of freedom (MDOF) systems
Floor demands velocities
Accelerations
Nonstructural damage

Repository

RI de Documento Digitales de Acceso Abierto de la UTP

Get full text

http://ridda2.utp.ac.pa/handle/123456789/2533

Rights

openAccess

License

https://creativecommons.org/licenses/by-nc-sa/4.0/