AbstractsPsychology

This PhD thesis is focused on the characterisation of the out-of-plane seismic performance of stone masonry walls, where the development of an innovative fragility-based approach, founded on solid experimental outputs, analytical formulation and post-earthquake damage observation, was outlined as main objective. In order to achieve it, two groups of specific objectives were distinguished in function of the genesis of the work, and are discussed throughout the seven chapters that compose this document. The first chapter presents a brief introduction to the main topic of the work, the description of the general and specific objectives to be achieved and each one of the tasks performed to fulfil them. Chapter 2 presents a compact state-of-art review wherein the principal methodologies proposed to assess the out-of-plane behaviour of unreinforced masonry structures are presented and discussed. The experimental part of this research begins in the third chapter, where an in situ experimental campaign, performed on three masonry wall piers of an existing building, is presented. Chapter 4 aims at describing an experimental program conducted in laboratory environment to characterise the out-of-plane behaviour of unreinforced masonry piers. In the scope of this experimental campaign, six full-scale unreinforced regular stone masonry walls were tested resorting to two different loading techniques. Getting into the analytical part of the work, Chapter 5 presents a simplified analytical approach for the description of the out-of-plane seismic performance of unreinforced regular stone masonry wall, from an overturning moment-rotation relationship and Chapter 6 is focused on the calibration of a seismic vulnerability method, on the basis of fragility results constructed from damage limit-states obtained resorting to the analytical approach proposed in the fifth chapter. Finally, an overall synopsis of the work, the most relevant results and conclusions achieved and some future research lines are presented and discussed in Chapter 7.; Esta tese de doutoramento foca-se na caraterização do desempenho sísmico para fora do plano de paredes de alvenaria de pedra, através do desenvolvimento de uma nova metodologia baseada na fragilidade destes elementos, assente em observação experimental, formulação analítica e observação de danos pós-sismo. De forma a atingir este objetivo, definem e discutem-se neste documento dois grupos distintos de objetivos em função da génese experimental ou analítica dos trabalhos. Assim, no primeiro capítulo apresenta-se uma breve introdução ao tópico principal do trabalho e discutemse objetivos gerais e específicos a atingir em cada uma das tarefas definidas. O Capítulo 2 apresenta um estado de arte exaustivo, onde as principais metodologias propostas na bibliografia para avaliar o comportamento sísmico de estruturas de alvenaria de pedra não reforçada, são apresentadas e discutidas. A parte experimental deste trabalho inicia-se no capítulo terceiro, com a apresentação de uma campanha experimental in situ…