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Out-of-plane behaviour of existing stone masonry buildings: experimental evalua...

Masonry structures can be considered as the simplest type of structures concerning its assemblage but, at the same time, it is one of the most complex construction materials in terms of mechanical properties and correct behaviour assessment. In this context, the work herein presented aims at describing an experimental testing campaign recently carried out in order to characterize the out-of-plane behaviour of t...

A methodology for the probabilistic assessment of behaviour factors

Given the importance that traditional force-based seismic design still currently exhibits, studies addressing issues related to the definition of the behaviour factor values are considered to be of most interest. A probabilistic methodology is proposed for the calibration of the q-factor relating its value with two fundamental parameters, the displacement ductility capacity measured at a relevant location of th...

Experimental In-Situ Testing of Typical Masonry Constructions of Faial Island -...

The present paper focuses on an in-situ testing campaign recently developed in the Faial island, Azores, Portugal, aiming at the assessment of the out-of-plane behaviour of traditional stone masonry walls. This experimental activity, carried out by the Laboratory for Earthquake and Structural Engineering (LESE, FEUP, Porto), started developing some years after the Faial/Pico earthquake on July 9th 1998, in orde...

In Situ Testing of the Out-of-Plane Capacity of Traditional Stone Masonry Walls

This paper reports on an in-situ experimental programme under development by the Laboratory for Earthquake and Structural Engineering (LESE, FEUP, Porto) on existing traditional masonry constructions hit and damaged during the 1998 Azores earthquake. The work seeks for a better understanding of traditional stone masonry wall behaviour under out-of-plane cyclic loading, by providing experimental evidence and rea...

Estudo experimental in situ de paredes em alvenaria do Faial, Açores

Taking advantage of the existence of a few traditional masonry 1-2 storey buildings abandoned after the 1998 Azores earthquake, several in situ tests were performed in various cases. Static cyclic loads were applied at the top level of these buildings, mainly in the out-of-plane direction and in-plane direction in just one case. The behaviour was assessed resorting to a detailed instrumentation system that also...

Metodologia da preparação de ensaios a realizar na ilha do Faial, Açores

O comportamento in-situ de alvenaria estrutural, tanto no próprio plano como fora-do-plano, não tem sido muito estudado pela comunidade científica, fundamentalmente devido às diversas dificuldades que se colocam à realização de ensaios em construções reais. Tal é o caso das paredes alvenaria de pedra tradicional como as existentes em muitas casas do arquipélago açoreano em geral e, em particular, das ilhas do F...

Caracterização experimental do sistema construtivo do grupo central do arquipél...

Sismos recentes continuam a evidenciar que a construção típica de moradias do grupo central do arquipélago açoriano, essencialmente baseada em alvenaria tradicional de pedra, apresenta particular vulnerabilidade sísmica resultante de deficiente comportamento para fora do plano das paredes. Por outro lado, na sequência do sismo do Faial/Pico a 9 de Julho de 1998, a reconstrução do parque habitacional tem passado...

Influência das Condições Geotécnicas Locais na Acção Sísmica