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Impiego di controventi dissipativi per la protezione sismica di strutture in c.a
No full textThe aim of this paper is to characterize criteria and methodologies for the optimal design of dissipative bracing systems for the seismic protection of r.c. buildings. A performance-based approach - that uses the damage under cycling reversal loading like a control parameter of the inelastic response – has been proposed. Such approach has concurred to estimate the effectiveness of passive up-grading systems through the performance matrix that explicitly correlates the levels of structural performance (Full Operational-FO, Operational-O, Life Safety-LS, Collapse Prevention-CP) with the intensity of the earthquake ground motion. L’obiettivo del lavoro è quello di individuare criteri e metodologie per il dimensionamento ottimale dei controventi dissipativi per la protezione sismica di edifici in c.a. A tale scopo è stato proposto un approccio di tipo prestazionale che adotta come parametri di controllo della risposta inelastica i livelli di danneggiamento connessi ai carichi ciclici ripetuti. Tale approccio ha consentito di valutare l’efficacia dei sistemi passivi di protezione sismica attraverso la matrice di performance, che correla in modo esplicito i livelli di prestazione strutturale (Completa Operatività - FO, Operatività - O, Sicurezza della vita umana - LS, Prevenzione del Collasso - CP) con i livelli dell’intensità dell’azione sismica
Design Criteria for the Use of Special Devices in the Seismic Protection of Masonry Structures
No full textDesign Criteria for the Use of Special Devices in the Seismic Protection of Masonry Structures
No full textProceedings of the 8th World Seminar on Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures Yerevan, Armenia 6-10 October 200
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Seismic up-grading of masonry structures by dissipative steel structures and passive control devices
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