A procedure is presented for performing Eurocode 8-compliant spectral analyses of reinforced concrete structures by means of seismic response envelopes. To account for global torsion effects in the computation of the supreme envelope an algorithmic rotational response spectrum is defined. The presented strategy turns out to be particularly appropriate for finite element models including accidental eccentricity due to mass shifting since seismic envelopes can be computed by making reference to a single structural model rather than to separate models characterized by different signs of the accidental eccentricity. The proposed procedure is theoretically formulated and numerically tested by analyzing a rotationally stiff and a rotationally flexible building as well as two irregular structures. Moreover, it is compared with an alternative formulation derived from a recently proposed strategy concerning accidental torsion. The results show that the proposed procedure is coherent with the analysis procedures provided by standard codes and computationally more efficient.

A Computational Strategy for Eurocode 8-Compliant Analyses of Reinforced Concrete Structures by Seismic Envelopes / Sessa, Salvatore; Marmo, Francesco; Vaiana, Nicolo'; Rosati, Luciano. - In: JOURNAL OF EARTHQUAKE ENGINEERING. - ISSN 1363-2469. - 25:6(2021), pp. 1078-1111. [10.1080/13632469.2018.1551161]

A Computational Strategy for Eurocode 8-Compliant Analyses of Reinforced Concrete Structures by Seismic Envelopes

Salvatore Sessa
Methodology
;
Francesco Marmo
Validation
;
VAIANA, NICOLO'
Membro del Collaboration Group
;
Luciano Rosati
Membro del Collaboration Group
2021

Abstract

A procedure is presented for performing Eurocode 8-compliant spectral analyses of reinforced concrete structures by means of seismic response envelopes. To account for global torsion effects in the computation of the supreme envelope an algorithmic rotational response spectrum is defined. The presented strategy turns out to be particularly appropriate for finite element models including accidental eccentricity due to mass shifting since seismic envelopes can be computed by making reference to a single structural model rather than to separate models characterized by different signs of the accidental eccentricity. The proposed procedure is theoretically formulated and numerically tested by analyzing a rotationally stiff and a rotationally flexible building as well as two irregular structures. Moreover, it is compared with an alternative formulation derived from a recently proposed strategy concerning accidental torsion. The results show that the proposed procedure is coherent with the analysis procedures provided by standard codes and computationally more efficient.
2021
A Computational Strategy for Eurocode 8-Compliant Analyses of Reinforced Concrete Structures by Seismic Envelopes / Sessa, Salvatore; Marmo, Francesco; Vaiana, Nicolo'; Rosati, Luciano. - In: JOURNAL OF EARTHQUAKE ENGINEERING. - ISSN 1363-2469. - 25:6(2021), pp. 1078-1111. [10.1080/13632469.2018.1551161]
File in questo prodotto:
File Dimensione Formato  
JEE_SeismicEnvelopes_FINAL.pdf

accesso aperto

Descrizione: Preprint
Tipologia: Documento in Pre-print
Licenza: Dominio pubblico
Dimensione 1.08 MB
Formato Adobe PDF
1.08 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/726161
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 25
  • ???jsp.display-item.citation.isi??? 11
social impact