Materials and Structures

, Volume 34, Issue 10, pp 636–644 | Cite as

Experimental evaluation of the ductility of a reduced-scale reinforced masonry building

  • D. Zonta
  • G. Zanardo
  • C. Modena
Scientific Reports

Abstract

The technical aspects and the notable outcomes of an experiment on a reduced scale building, aimed to determine the seismic performances of an advanced reinforced masonry construction technique, are presented. The testing program includes 33 shaking table tests (characterised by a design PGA varying from 0.02 g up to 0.6 g), alternated with sequences of low intensity dynamic characterisations, based on shock tests. The damage evolution is analysed by modelling the structure as a non-linear SDOF oscillator, where the input is the ground motion and the output is the top floor response. The analysis results high-light a very satisfactory seismic behaviour of the tested construction technique, in terms of the response to low-medium intensity earthquakes, and the performance at the ultimate limit state (ductility and reduction factor equal to 7.5 and 3.6, respectively). These outcomes are discussed with reference to the current Eurocode provisions.

Keywords

Ground Motion Pier Peak Ground Acceleration Masonry Building Shake Table Test 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

Des essais sur table vibrante ont été effectués afin d'observer la réponse sismique d'un bâtiment en briques, à échelle réduite, renforcé selon une nouvelle méthode. Le programme d'essais inclut 33 séismes, caractérisés par une valeur maximale d'accélération au sol variant entre 0,02 g et 0,6 g, alternés avec des séquences de caractérisations dynamiques à basse intensité. L'évolution des dommages a été analysée en modélisant la structure comme un oscillateur non linéaire à un degré de liberté, sollicité à la base par le mouvement au sol. La réponse de l'oscillateur correspond à celle du bâtiment mesurée au sommet. Les résultats analytiques mettent en évidence le comportement sismique satisfaisant des bâtiments renforcés selon la technique r.m., tant pour des séismes à basse-moyenne intensité que pour des séismes où les états limites sont atteints (ductilité de 7,5 et facteur de comportement équivalant à 3,6). Les résultats sont comparés aux recommandations de L'Eurocode.

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Copyright information

© RILEM 2001

Authors and Affiliations

  • D. Zonta
    • 1
  • G. Zanardo
    • 1
  • C. Modena
    • 1
  1. 1.Dipartimento di Costruzioni e TrasportiUniversità di PadovaPadovaItaly

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