Smart passive damper control for greater building earthquake resilience in sustainable cities

Abstract

Passive dampers are used recently in many mid and high-rise buildings. This trend is accelerated by the increased demand and desire for safer, more reliable and more comfortable buildings under uncertain external loading and environment. Viscous, visco-elastic, hysteretic and friction dampers are representatives of passive dampers. Such passive dampers also play a key role in the implementation of structural rehabilitation which is essential for the realization and promotion of sustainable buildings. The technique of structural health monitoring is inevitable for the reliable and effective installation of passive dampers during the structural rehabilitation or retrofit. The design earthquake ground motions change from time to time when a new class of ground motions (e.g. long-period ground motions due to surface waves) is observed or a new type of damage appears during severe earthquakes. The concept of critical excitation is useful in responding to this change together with the usage of passive dampers from the viewpoint of sustainable buildings and cities. In this paper, a historical review is made on the development of smart or optimal building structural control with passive dampers and some possibilities of structural rehabilitation by use of passive dampers are discussed.

Studies on Energy Dissipation Mechanism of an Innovative Viscous Damper Filled with Oil and Silt

“…The data of all test conditions with silt content of 30% are taken to verify the rationality of Equation (1). Part of the typical data in the first and third quadrants of the hysteretic curves is shown in Figure 11.…”

“…The use of passive, semi-active, and active dampers to dissipate seismic energy is an effective approach in the creation of earthquake-resilient structures [1][2][3][4]. Such energy dissipation devices reduce structural seismic response and protect the structure from severe damage.…”

Innovative Seismic Response-Controlled System with Shear Wall and Concentrated Dampers in Lower Stories

“…It is aimed at trying to enhance the earthquake resilience of building structures via innovative technologies for broader classes of earthquake ground motions (Amadio et al, 2003, Kobori, 2004, Takewaki et al, 2012, 2013, Takewaki, 2013. In developing these innovative techniques, high uncertainty in earthquake ground motions may disturb the progress (Takewaki et al, 2011a,b, 2012, 2013, Takewaki, 2013. The variability and uncertainty in building structural properties (especially the properties of added control systems) should also be taken into account appropriately (Ben-Haim, 2006, Takewaki et al, 2011b.…”

Innovative base-isolated building with large mass-ratio TMD at basement for greater earthquake resilience

“…wind and earthquake loadings. Enhancement of resilience of such high-rise and super high-rise buildings after intensive wind and earthquake loadings is a major concern from the viewpoint of the business continuity plan (BCP) which is the most controversial issue in the sound development of society (Takewaki et al 2011(Takewaki et al , 2012b.…”