A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Upgrade of an Existing Tall Building Using Different Supplemental Energy Dissipation Devices
The feasibility and cost-effectiveness of various retrofit techniques to improve the seismic performance of an existing 35-story steel building are examined. Three types of supplemental energy dissipation devices are used in conjunction with basic retrofit measures to achieve the collapse prevention performance objective of current standards. Devices considered include fluid viscous dampers (FVDs), viscous wall dampers, and buckling restrained braces. The placement of the devices was kept the same in all three cases, considering overall architectural, programmatic, and constructability issues. The mechanical characteristics of the devices were selected using a simplified approach to achieve the same overall effective damping ratios and story drifts consistent with the targeted collapse prevention performance objective. The results of nonlinear dynamic analyses indicate that the FVD scheme was the most efficient for this structure in achieving the targeted performance goal and provided the most cost-effective means of improving the structural behavior and reducing economic losses for Level 2 basic safety earthquake hazard events. Future research needs related to the use of supplemental energy dissipation devices in existing buildings are also discussed.
Seismic Upgrade of an Existing Tall Building Using Different Supplemental Energy Dissipation Devices
The feasibility and cost-effectiveness of various retrofit techniques to improve the seismic performance of an existing 35-story steel building are examined. Three types of supplemental energy dissipation devices are used in conjunction with basic retrofit measures to achieve the collapse prevention performance objective of current standards. Devices considered include fluid viscous dampers (FVDs), viscous wall dampers, and buckling restrained braces. The placement of the devices was kept the same in all three cases, considering overall architectural, programmatic, and constructability issues. The mechanical characteristics of the devices were selected using a simplified approach to achieve the same overall effective damping ratios and story drifts consistent with the targeted collapse prevention performance objective. The results of nonlinear dynamic analyses indicate that the FVD scheme was the most efficient for this structure in achieving the targeted performance goal and provided the most cost-effective means of improving the structural behavior and reducing economic losses for Level 2 basic safety earthquake hazard events. Future research needs related to the use of supplemental energy dissipation devices in existing buildings are also discussed.
Seismic Upgrade of an Existing Tall Building Using Different Supplemental Energy Dissipation Devices
Wang, Shanshan (author) / Mahin, Stephen A. (author)
2018-05-14
Article (Journal)
Electronic Resource
Unknown
Seismic Retrofit of an Existing Building Using Energy-Dissipation Devices
| British Library Conference Proceedings | 2001
Seismic design with supplemental energy dissipation devices
| UB Braunschweig | 2001
Seismic design with supplemental energy dissipation devices
| TIBKAT | 2001
Development of a simplified model and seismic energy dissipation in a super-tall building
| Online Contents | 2014