Optimum design of viscous dissipative links in wall-frame systems

Greco, Rita; Marano, Giuseppe Carlo

doi:10.1002/tal.1265

Cited by 12 publications

(6 citation statements)

References 44 publications

(58 reference statements)

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“…With the purpose of maximizing TMD efficiency, over the years, numerous approaches have been proposed for the optimum design of TMD. After the work of Ormondroyd and Den Hartog (), several optimum design methods have been introduced in literature, aimed at minimizing the vibrations induced in mechanical and structural systems by various types of excitation sources (Crandall and Mark, ; Sadek et al ., ; Rana and Soong, ; Hoang and Warnitchai, ; Rundinger, ; Hoang et al ., ; Krenk and Høgsberg, ; Marano et al ., ; Marano and Greco, ; Greco and Marano, , ). In most of the above studies, the main structure is generally represented by an equivalent single degree of freedom system.…”

Section: Introductionmentioning

confidence: 97%

Performance–cost optimization of tuned mass damper under low‐moderate seismic actions

Greco

Marano

Fiore

2016

Structural Design Tall Build

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SUMMARYIn this paper, a multi-objective optimization of a single tuned mass damper is proposed at the aim to control vibrations induced in building structures under low-moderate earthquakes. The optimum design is carried out by considering both economic and performance criteria. The cost of the device is the economic objective that is assumed directly related to its mechanical parameters. At the aim to control the damage level and the behaviour of components and equipment, the ratio between the absolute accelerations of the protected structure and the unprotected one is assumed as the device performance. A multi-objective optimization is then formulated, and Pareto optimum solutions are achieved by the Non-dominated Sorting Genetic Algorithm in its second version. Finally, a sensitivity analysis of the optimum solution with respect to some input data is carried out.

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Section: Introductionmentioning

confidence: 97%

Performance–cost optimization of tuned mass damper under low‐moderate seismic actions

Greco

Marano

Fiore

2016

Structural Design Tall Build

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“…Seismic retrofit strategies of frame structures are quickly evolving, and several significant contributions have been recently offered in terms of design approaches and modelling (Marano et al, 2007;Greco and Marano, 2016;Di Trapani et al, 2020;Aloisio et al, 2022), as well as of implementation of innovative protection techniques or upgrade of existing ones (Aloisio et al, 2022;Boggian et al, 2022;Lu and Phillips, 2022;Zhao et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Stiffening effects-controlling sizing procedure of ADAS dampers in seismic retrofit of frame structures

Terenzi

Sorace

Fuso

2023

Front. Built Environ.

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Added Damping and Stiffness (ADAS) steel dissipators are among the most classical devices installed in dissipative bracing systems for the advanced seismic retrofit of frame buildings. An energy-based sizing procedure is formulated in this study for this class of dampers, where the total number of constituting plates is directly related, without iterative steps, to the supplementary damping energy required to jointly reduce stress states in structural members and storey drifts. The stiffening effects of the dissipative braces are expressly controlled, so as to compensate for the increase in storey shears induced by their incorporation in the frame skeleton. The sizing procedure is demonstratively applied to the retrofit design of a 6-storey reinforced concrete building, to explicate and discuss the use of its analytical relations and relevant limitations in practice. The evaluation of the seismic performance of the structure in retrofitted conditions allows comparing the response of the dissipative bracing system with the hypotheses formulated at the sizing stage.

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“…Jiang et al (2020) developed an optimal design method based on analytical formulae, derived by minimizing the height of the convective wave, mainly focusing on slender tanks. Zahedin et al ( 2020) faced a preliminary multi-objective optimization problem (Reggio et al 2020)- (Greco and Marano 2016) for an Inerter Base Isolation System (IBIS).…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimal design and seismic assessment of an inerter-based hybrid control system for storage tanks

Labaf

Angelis

Basili

2022

Bull Earthquake Eng

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In this paper, a hybrid control system (HCS) endowing a base isolation system (BIS) with a Tuned Mass Damper Inerter (TMDI) is proposed for the protection of steel storage tanks from severe structural damages induced by seismic events. Among all the components of industrial plants, cylindrical steel storage tanks are widely spread and play a primary role when subjected to seismic hazard, since they suffer of many critical issues related to their dynamic response such as high convective wave height and base shear force. The adopted base isolation system is realized with spring and damper elements, whereas the TMDI is realized with a tuned mass damper connected to the ground by the inerter. The developed mechanical model consists of a MDOF system, which considers the impulsive and convective modes as well as the TMDI dynamics. An optimal design problem is tackled, making use of a multi-objective approach, with the scope to mitigate simultaneously the convective and impulsive response of the storage tank. A zero mean white noise excitation is assumed as input in the optimal design procedure. Once the HCS is optimally designed, a systematic investigation of its seismic effectiveness is reached through parametric analysis. Modal parameters and frequency response functions are discussed. A literature case study comparing the effectiveness of the proposed optimally designed HCS with traditional base isolation is illustrated and performances are assessed through stochastic excitation and natural earthquakes.

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Optimum design of viscous dissipative links in wall-frame systems

Cited by 12 publications

References 44 publications

Performance–cost optimization of tuned mass damper under low‐moderate seismic actions

Performance–cost optimization of tuned mass damper under low‐moderate seismic actions

Stiffening effects-controlling sizing procedure of ADAS dampers in seismic retrofit of frame structures

Multi-objective optimal design and seismic assessment of an inerter-based hybrid control system for storage tanks

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