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Article Dans Une Revue Bulletin of the Seismological Society of America Année : 2018

PRENOLIN: International benchmark on 1D nonlinear site‐response analysis—Validation phase exercise

1 GEOAZUR 7329 - Géoazur
2 Cerema - Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement
3 IFSTTAR/GERS/SV - Séismes et Vibrations
4 ISTerre - Institut des Sciences de la Terre
5 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)
6 DPRI - Disaster Prevention Research Institute
7 EDF Ceidre TEGG
8 University of Washington [Seattle]
9 UNIROMA - Università degli Studi di Roma "La Sapienza" = Sapienza University [Rome]
10 CALTECH - California Institute of Technology
11 Dipartimento di Ingegneria Civile
12 University of Naples Federico II = Università degli studi di Napoli Federico II
13 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
14 UC San Diego - Department of Structural Engineering [Univ California San Diego]
15 UNIBA - Università degli studi di Bari Aldo Moro = University of Bari Aldo Moro
16 EMSI - Laboratoire d'Etudes de Mécanique Sismique
17 Polito - Politecnico di Torino = Polytechnic of Turin
18 NTUA - National Technical University of Athens [Athens]
19 IRSN/PSE-ENV/SCAN/BERSSIN - Bureau d'évaluation des risques sismiques pour la sûreté des installations
20 Fugro Sial, Şişli‐İstanbul
21 Hayward Baker Inc, El Cajon (CA)
22 UIUC - University of Illinois at Urbana-Champaign [Urbana]
23 Flip consortium, Kyoto
24 Imperial College London
25 FMPH/UNIBA - Faculty of Mathematics, Physics and Informatics [Bratislava]
26 Polytechnic University of Bari / Politecnico di Bari
27 Fédération de Mathématiques de CentraleSupélec
28 MSSMat - Laboratoire de mécanique des sols, structures et matériaux
29 University of British Columbia [Vancouver]
30 EAFIT - EAFIT University
31 MSSMat - Laboratoire de mécanique des sols, structures et matériaux
32 EDF - EDF
33 Ud'A - Università degli studi "G. d'Annunzio" Chieti-Pescara [Chieti-Pescara]
34 Département d'Électronique [UNS - UFR Sciences]
35 University of Cagliari
36 ROMA TRE - Università degli Studi Roma Tre = Roma Tre University
Pierre-Yves Bard
Deborah Sicilia
  • Fonction : Auteur
Alex Nieto‐ferro
  • Fonction : Auteur
EDF
Jian Shi

Résumé

This article presents the main results of the validation phase of the PRENOLIN project. PRENOLIN is an international benchmark on 1D nonlinear (NL) site-response analysis. This project involved 19 teams with 23 different codes tested. It was divided into two phases; with the first phase verifying the numerical solution of these codes on idealized soil profiles using simple signals and real seismic records. The second phase described in this article referred to code validation for the analysis of real instrumented sites. This validation phase was performed on two sites (KSRH10 and Sendai) of the Japanese strong-motion networks KiK-net and Port and Airport Research Institute (PARI), respectively, with a pair of accelerometers at surface and depth. Extensive additional site characterizations were performed at both sites involving in situ and laboratory measurements of the soil properties. At each site, sets of input motions were selected to represent different peak ground acceleration (PGA) and frequency content. It was found that the code-to-code variability given by the standard deviation of the computed surface-response spectra is around 0.1 (in log10 scale) regardless of the site and input motions. This indicates a quite large influence of the numerical methods on site-effect assessment and more generally on seismic hazard. Besides, it was observed that sitespecific measurements are of primary importance for defining the input data in siteresponse analysis. The NL parameters obtained from the laboratory measurements should be compared with curves coming from the literature. Finally, the lessons learned from this exercise are synthesized, resulting also in a few recommendations for future benchmarking studies, and the use of 1D NL, total stress site-response analysis
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Dates et versions

hal-01693214 , version 1 (18-01-2024)

Identifiants

Citer

Julie Regnier, Luis‐fabian Bonilla, Pierre-Yves Bard, Etienne Bertrand, Fabrice Hollender, et al.. PRENOLIN: International benchmark on 1D nonlinear site‐response analysis—Validation phase exercise. Bulletin of the Seismological Society of America, 2018, 108 (2), ⟨10.1785/0120170210⟩. ⟨hal-01693214⟩
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