Seismic Performance of a Full-Scale Five-Story Masonry-Infilled RC Building Subjected to Substructured Pseudodynamic Tests

This paper discusses the results of a series of hybrid earthquake tests on a full-scale RC building with masonry infills. The tests were part of a broader experimental study aimed at evaluating the seismic and energy performance of buildings and validating the effectiveness of novel integrated retrofit techniques. The prototype was a five-story structure representing the vulnerable part of a typical RC building in Southern Europe, with beams stronger than the columns and masonry infill walls weaker than the surrounding frame elements. It was subjected to a sequence of unidirectional hybrid earthquake simulations of increasing intensity up to conditions of significant damage to the infills, using the pseudodynamic testing method with substructuring. The experiments were terminated with the onset of a soft-story mechanism at the first story of the physical substructure for an earthquake with a peak ground acceleration of 0.3 g. The paper summarizes the key characteristics of the specimen and the major observations from the hybrid tests, illustrating the evolution of structural/nonstructural damage and the cyclic hysteretic building response. The attainment of significant damage limit states is correlated with experimentally defined engineering demand parameters and ground-motion intensity measures for the performance-based seismic assessment of buildings.

KALLIORAS Stylianos;  POHORYLES Daniel;  BOURNAS Dionysios;  MOLINA RUIZ Francisco Javier;  PEGON Pierre; 

2023-12-15

WILEY

JRC131364

0098-8847 (online),   

https://onlinelibrary.wiley.com/doi/full/10.1002/eqe.3940,    https://publications.jrc.ec.europa.eu/repository/handle/JRC131364,   

10.1002/eqe.3940 (online),