Seismic Response of Hybrid Systems with Metallic and Viscous Dampers

 

Authors

Vargas, Ramiro

Format

Article

Status

publishedVersion

Description

Metallic dampers can enhance structural performance by reducing seismically induced lateral displacements, and by reducing inelastic behavior of beams and columns. Limiting story drift also indirectly allows for mitigation of damage to nonstructural components that are sensitive to lateral deformations. However many nonstructural elements and components are vulnerable to excessive accelerations. Therefore, in order to protect these components, floor accelerations in buildings should be kept below certain limits. In this perspective, this paper investigates the seismic performance of single-degree-of-freedom (SDOF) systems with metallic and viscous dampers installed in parallel, to determine the effectiveness or appropriateness of using metallic dampers to mitigate lateral displacements, simultaneously with viscous dampers to reduce acceleration demands. Parametric analyses investigate the effectiveness of adding various levels of viscous damping on the equivalent hysteretic damping and on the spectral floor acceleration for short, intermediate, and long period structures.
Metallic dampers can enhance structural performance by reducing seismically induced lateral displacements, and by reducing inelastic behavior of beams and columns. Limiting story drift also indirectly allows for mitigation of damage to nonstructural components that are sensitive to lateral deformations. However many nonstructural elements and components are vulnerable to excessive accelerations. Therefore, in order to protect these components, floor accelerations in buildings should be kept below certain limits. In this perspective, this paper investigates the seismic performance of single-degree-of-freedom (SDOF) systems with metallic and viscous dampers installed in parallel, to determine the effectiveness or appropriateness of using metallic dampers to mitigate lateral displacements, simultaneously with viscous dampers to reduce acceleration demands. Parametric analyses investigate the effectiveness of adding various levels of viscous damping on the equivalent hysteretic damping and on the spectral floor acceleration for short, intermediate, and long period structures.

Publication Year

2016

Language

eng

Topic

Passive energy devices (PED)
Structural performance
Seismic damage
Metallic dampers
Structural fuses (SF)
Elasticity
Seismic performance
Retrofitting
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
Shaking table tests
Moment-resisting connections
Seismic isolation
Ball-in-cone (BNC) system
Pin connections
Passive energy devices (PED)
Structural performance
Seismic damage
Metallic dampers
Structural fuses (SF)
Elasticity
Seismic performance
Retrofitting
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
Shaking table tests
Moment-resisting connections
Seismic isolation
Ball-in-cone (BNC) system
Pin connections

Repository

RI de Documento Digitales de Acceso Abierto de la UTP

Get full text

http://ridda2.utp.ac.pa/handle/123456789/2538

Rights

openAccess

License

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