Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Stochastic optimum design criterion for linear damper devices for seismic protection of buildings
This paper concerns a new approach for the reliability-based optimum design of linear multistory frames seismically protected by viscous dampers. A deterministic objective function, defined as the total added damping, is minimized, while stochastic restraints impose a limit to system failure probability. This latter is here related to a maximum interstory drift crossing over a given value, which is associated with damage control requirements. System failure probability is evaluated by means of the covariance analysis of a frame subject to a seismic load represented by a nonstationary modulated Kanai-Tajimi stochastic process. Numerical examples are developed, concerning a plane-shear-type frame with three floors equipped with viscous damper devices. Two different possible design solutions are performed, considering different earthquake intensities: more in detail, the first adds constant damping at each story, while the second considers a variable added damping distribution.
Stochastic optimum design criterion for linear damper devices for seismic protection of buildings
This paper concerns a new approach for the reliability-based optimum design of linear multistory frames seismically protected by viscous dampers. A deterministic objective function, defined as the total added damping, is minimized, while stochastic restraints impose a limit to system failure probability. This latter is here related to a maximum interstory drift crossing over a given value, which is associated with damage control requirements. System failure probability is evaluated by means of the covariance analysis of a frame subject to a seismic load represented by a nonstationary modulated Kanai-Tajimi stochastic process. Numerical examples are developed, concerning a plane-shear-type frame with three floors equipped with viscous damper devices. Two different possible design solutions are performed, considering different earthquake intensities: more in detail, the first adds constant damping at each story, while the second considers a variable added damping distribution.
Stochastic optimum design criterion for linear damper devices for seismic protection of buildings
Stochastisches Optimumentwurf-Kriterium für lineare Dämpferelemente zum Erdbenschutz von Gebäuden
Marano, Giuseppe Carlo (Autor:in) / Trentadue, Francesco (Autor:in) / Greco, Rita (Autor:in)
Structural and Multidisciplinary Optimization ; 33 ; 441-455
2007
15 Seiten, 35 Quellen
Aufsatz (Zeitschrift)
Englisch
Seismographie , stochastisches Modell , Viskositäts-Drehschwingungsdämpfer , Optimierungsalgorithmus , Wahrscheinlichkeitsrechnung , erdbebensicheres Bauwerk , Flüssigkeitsdämpfer , mehrstöckiges Gebäude , Ausfallwahrscheinlichkeit , Kovarianz , statistische Analyse , mathematisches Modell , Baustatik
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