The High-Performance Dissipating Frame (HPDF) System for the Seismic Strengthening of RC Existing Buildings

Vincenzo Manfredi, Giuseppe Santarsiero, Angelo Masi and Giuseppe Ventura
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Vincenzo Manfredi: School of Engineering, University of Basilicata, vial dell’Ateneo Lucano, 85100 Potenza, Italy
Giuseppe Santarsiero: School of Engineering, University of Basilicata, vial dell’Ateneo Lucano, 85100 Potenza, Italy
Angelo Masi: School of Engineering, University of Basilicata, vial dell’Ateneo Lucano, 85100 Potenza, Italy
Giuseppe Ventura: School of Engineering, University of Basilicata, vial dell’Ateneo Lucano, 85100 Potenza, Italy

Sustainability, 2021, vol. 13, issue 4, 1-16

Abstract: In Italy as well as in other earthquake-prone countries, the large number of existing buildings requiring seismic retrofitting calls for sustainable solutions able to reduce both costs and downtime. To this purpose, in this paper, the High-Performance Dissipating Frame system (HPDF), a new strengthening solution for the seismic rehabilitation of existing buildings, is presented. HPDF is based on external precast reinforced concrete (RC) frames rigidly connected to the existing structures and equipped with shear damper devices in order to provide high dissipation capacity. The proposed solution permits: (i) to increase sustainability through works made up from the outside without removing/demolishing infills/other non-structural components, (ii) rapid execution by adopting precast resisting members mutually restrained with steel connections, and (iii) effectiveness due to shear damper devices able to dissipate a large amount of shaking energy. In the paper, a displacement-based design procedure is proposed and applied to a numerical example.

Keywords: RC existing framed structures; energy dissipation; seismic rehabilitation; strengthening intervention; exoskeleton system (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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