Design of Supplemental Dampers for Control of Structures

Glück, Nikolai; Reinhorn, A. M.; Gluck, J.; Levy, Robert

doi:10.1061/(asce)0733-9445(1996)122:12(1394)

Cited by 222 publications

(135 citation statements)

References 4 publications

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“…In this case, the passive damping system is equivalent to a fully decentralized static velocity-feedback control system, and the powerful design strategies of feedback control can be used to define a systematic procedure to compute the passive damping constants. This line of work has been successfully used in the early work of Gluck et al (1996), and extended in Agrawal and Yang (1999) and Yang et al (2002).…”

Section: Introductionmentioning

confidence: 99%

ptimal passive-damping design using a decentralized velocity-feedback H-Infinity approach

Quiñonero¹,

Massegú²,

Rossell³

et al. 2012

MIC

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In this work, a new strategy to design passive energy dissipation systems for vibration control of large structures is presented. The method is based on the equivalence between passive damping systems and fully decentralized static velocity-feedback controllers. This equivalence allows to take advantage of recent developments in static output-feedback control design to formulate the passive-damping design as a single optimization problem with Linear Matrix Inequality constraints. To illustrate the application of the proposed methodology, a passive damping system is designed for the seismic protection of a five-story building with excellent results.

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Section: Introductionmentioning

confidence: 99%

ptimal passive-damping design using a decentralized velocity-feedback H-Infinity approach

Quiñonero¹,

Massegú²,

Rossell³

et al. 2012

MIC

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“…The concepts, based on the type of steel dampers installed in the Santa Maria di Collemaggio Basilica, are neither new nor original, but have been discussed in the literature of the last 25 years (Gluck et al, 1996;Lavan et al, 2008;Occhiuzzi, 2009;Cimellaro et al, 2009). Indeed, they were inspired by the Pall friction dampers, manufactured by Pall Dynamics Ltd., that were tested in 1985 and fi rst applied in a building in 1987 in Canada (Filiatrault and Cherry, 1990).…”

Section: Energy Dissipation Devicesmentioning

confidence: 99%

Introspection on improper seismic retrofit of Basilica Santa Maria di Collemaggio after 2009 Italian earthquake

Cimellaro

Reinhorn

Stefano

2011

Earthq. Eng. Eng. Vib.

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Abstract:The 2009 L'Aquila, Italy earthquake highlighted the seismic vulnerability of historic masonry building structures due to improper "strengthening" retrofi t work that has been done in the last 50 years. Italian seismic standards recommend the use of traditional reinforcement techniques such as replacing the original wooden roof structure with new reinforced concrete (RC) or steel elements, inserting RC tie-beams in the masonry and new RC fl oors, and using RC jacketing on the shear walls. The L'Aquila earthquake revealed the numerous limitations of these interventions, because they led to increased seismic forces (due to greater additional weight) and to deformation incompatibilities of the incorporated elements with the existing masonry walls. This paper provides a discussion of technical issues pertaining to the seismic retrofi t of the Santa Maria di Collemaggio Basilica and in particular, the limitations of the last (2000) retrofi t intervention. Considerable damage was caused to the church because of questionable actions and incorrect and improper technical choices.

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“…Moreover, the optimal or demanded story-wise placement of the dampers should be studied to achieve the earthquake-resistant design targets. Quite a few studies have been previously conducted on the optimal or necessary placement of conventional dampers such as the viscous or viscoelastic dampers (Zhang and Soong, 1992;Gluck et al, 1996;Tsuji and Nakamura, 1996;Takewaki, 1997;Ribakov and Gluck, 1999;Takewaki et al, 1999Takewaki et al, , 2013Garcia, 2001;Singh and Moreschi, 2002;Xu et al, 2003;Liu et al, 2004Liu et al, , 2005Park et al, 2004;Levy, 2005, 2006;Tan et al, 2005;Cimellaro, 2007;Silvestri and Trombetti, 2007). A variety of sequential methods have been developed to find the optimum placement of the additional dampers to achieve the seismic design restrictions or to optimize the values of the target properties.…”

Section: Introductionmentioning

confidence: 99%

Performance-Based Placement Design of Tuned Electromagnetic Inertial Mass Dampers

Nakamura

Hanzawa

2017

Front. Built Environ.

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This paper presents a performance-based placement design method for the control of the earthquake responses of a multistory building using tuned electromagnetic inertial mass dampers (T-EIMDs). The T-EIMD consists of a ball screw mechanism, a gear, a flywheel, and an electric generator installed in a cylinder, and a spring element connected in series. The ball screw mechanism converts the axial oscillation of the rod end into the rotational motion of the internal flywheel and generates a large inertial force. The electric generator is turned by the rotation of the inner rod and generates a variable damping force that is controlled by the terminal resistance. The T-EIMDs are installed between adjacent floors of a building with steel chevron braces and function as large tuned mass dampers within the stories. The spring element has the function of tuning the natural period of the T-EIMD to the fundamental natural period of the building. In the present work, a design procedure for the story-wise placement of T-EIMDs is proposed to limit the peak story drift angles to a specified target value. The proposed procedure utilizes the expanded complete quadratic combination method that involves modal analysis with complex eigenvalue analysis and is able to determine the necessary story-wise distribution of inertial masses of the T-EIMDs in a building. Time history earthquake response analyses are carried out for multistory building models set up with the necessary number of T-EIMD units, and the results establish the effectiveness and the adequacy of the proposed performance-based placement design procedure.

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Design of Supplemental Dampers for Control of Structures

Cited by 222 publications

References 4 publications

ptimal passive-damping design using a decentralized velocity-feedback H-Infinity approach

ptimal passive-damping design using a decentralized velocity-feedback H-Infinity approach

Introspection on improper seismic retrofit of Basilica Santa Maria di Collemaggio after 2009 Italian earthquake

Performance-Based Placement Design of Tuned Electromagnetic Inertial Mass Dampers

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