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[期刊论文]

Application of the Incremental Modal Pushover Analysis to Bridges Subjected to Near-Fault Ground Motions

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author:

Bergami, Alessandro Vittorio (Bergami, Alessandro Vittorio.) [1] | Fiorentino, Gabriele (Fiorentino, Gabriele.) [2] | Lavorato, Davide (Lavorato, Davide.) [3] | Unfold

Indexed by:

Scopus SCIE

Abstract:

Near-fault events can cause severe damage to civil structures, including bridges. Many studies have demonstrated that the seismic assessment is not straightforward. Usually, dealing with near-fault ground motion, the structural analysis is performed using Nonlinear Response-History Analysis (NRHA) but in the last years, many authors have tested existing pushover-based procedures originally developed and validated using far-field events. Between those procedures, the Incremental Modal Pushover Analysis (IMPA beta) is a pushover-based procedure specifically developed for bridges that, in this work, was applied to a case study considering near-fault pulse-like ground motion records. The records were analyzed and selected from the European Strong Motion Database. In the paper the results obtained with IMPA beta together with other standard pushover procedures, are compared with NRHA and incremental dynamic analyses; the vertical component of the motion has been also considered. Results obtained with the bridge case study demonstrate that the vertical seismic action has a minor influence on the structural response and that IMPA beta is confirmed as a very effective pushover-based method that can be applied also for near-fault events.

Keyword:

bridge near-field nonlinear dynamic analysis nonlinear static analysis pulse-like ground motions

Community:

  • [ 1 ] [Bergami, Alessandro Vittorio]Roma Tre Univ, Dept Architecture, I-00153 Rome, Italy
  • [ 2 ] [Fiorentino, Gabriele]Roma Tre Univ, Dept Architecture, I-00153 Rome, Italy
  • [ 3 ] [Lavorato, Davide]Roma Tre Univ, Dept Architecture, I-00153 Rome, Italy
  • [ 4 ] [Nuti, Camillo]Roma Tre Univ, Dept Architecture, I-00153 Rome, Italy
  • [ 5 ] [Briseghella, Bruno]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China
  • [ 6 ] [Nuti, Camillo]Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • [Bergami, Alessandro Vittorio]Roma Tre Univ, Dept Architecture, I-00153 Rome, Italy

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Source :

APPLIED SCIENCES-BASEL

ISSN: 2076-3417

Year: 2020

Issue: 19

Volume: 10

2 . 6 7 9

JCR@2020

2 . 5 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:132

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 5

SCOPUS Cited Count: 7

30 Days PV: 1

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