Shaking table tests using vibration model are conducted to verify the characteristics of high-damping structural system with multi-story shear walls and dampers. The can reduce response under earthquakes significantly compared conventional control which dampers work in inter-story drift. Analysis simulating is also it reveals that key index representing reduction effect damper deformation ampli...

In response estimation of seismic control structures, it is necessary to consider the performance degradation dampers due long-period motion. this paper focus given structures with shear strain dependent nonlinear viscoelastic dampers. A method proposed predict damper dissipated energy considering in earthquakes. The used maximum deformation structure using existing methods. New expression are ...

This research proposes a design methodology for hysteretic dampers in buildings under high levels of seismic hazard. Developments in structural materials have led to designs that satisfy strength requirements but are often very flexible. This trend, along with increasingly stringent building performance criteria, suggests a philosophy of controlling structural motion as opposed to merely design...

This paper presents a simplified design procedure (SDP) for performance-based of low-rise new steel MRF buildings with nonlinear viscous dampers. The SDP uses an effective stiffness and equivalent damping multi degree-of-freedom (MDOF) model the building, which is established using linearized system (damping devices associated bracing). integrated process to achieve target performance objective...

In this paper, a state-of-the-art literature review is presented emphasising on the development of control variants for mass damper schemes building-like structures. Additionally, systematic conducted addressing three relevant questions: What type preferable by associated industry? How are dampers distributed around world? Is industry following research? Through review, updated lists implementa...

As the world’s need for renewable energy has grown in recent years, possibility of creating and collecting deep-sea wind become a research hotspot. Floating turbines damping devices to provide stable working state structural safety. Damping systems are often used offshore floating constructions based on various operating principles locations. technology sorts is continually being researched dem...

A new robustness evaluation method based on the specified story ductility ratio is proposed for a building model with uncertain oil dampers. Since influence of input motion uncertainty response variation can be simply taken into account, critical double impulse used instead ground motions. In method, function derived as velocity amplitude ratio. This procedure suitable performance-based design....

this paper deals with new method for designing the tuned mass dampers (tmd) with considering both transient and steady state responses, simultaneously. this formulation is presented for undamped vibrations. for this purpose, the absolute value of the structural displacement ratio is minimized numerically. this procedure leads to optimum value of tmd's specifications. for numerical verification,...

Abstract Magnetorheological (MR) fluid based dampers have been established as an alternative to classical hydraulic with proportional electromagnetic valves under vibration processes which demand adaptive damping forces. Almost all MR-dampers are spatially 1-degree-of-freedom (DOF) dampers, having only one axis or direction of force generation. In many technical applications there exist movemen...

Viscoelastic and fluid film dampers are the main two categories of damping devices used for the vibration suppression in machines and mechanical structures. Although cost effective and of small size and weight, they are affected by several drawbacks: the need of elaborate tuning to compensate the effects of temperature and frequency, the ageing of the material and their passive nature that does...