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Seismic Upgrades Using Energy Dissipation Devices

by David Bleiman, Cygna Group, Oakland, United States,



Document Type: Proceeding Paper

Part of: Structures Congress XII

Abstract:

This paper presents a model for developing comparative seismic rehabilitation schemes for essential facilities using both conventional techniques and passive control devices. Essential facilities present a special challenge for seismic strengthening due to their unique functional requirements. Essential facilities often place a premium on their ability to operate continuously, 365 days a year, 24 hours a day. In many cases, they perform unique functions that can not be readily transferred or shut down for even brief periods of time. The challenge for the structural engineer in the rehabilitation of these buildings is therefore two-fold. First, the seismic upgrade must provide the highest level of protection possible commensurate with the importance of the essential facility (at an affordable price). Second, the construction must have minimum impact on building operations.

Subject Headings: Seismic tests | Seismic effects | Rehabilitation | Energy dissipation | Passive control | Earthquake resistant structures | Structural control

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