Encontrados 16 documentos, a visualizar página 1 de 2
A comparative application of different EC8-3 procedures for the seismic safety ...
Xavier Romão; Raimundo Delgado; João Paulo Miranda Guedes; Aníbal CostaAn application of the EC8-3 procedure for safety assessment is presented herein. Besides testing the applicability of the code procedure, this application aims to assess the consistency of the safety assessment results that are obtained. Based on the application of the EC8-3 procedure, the study assesses if the different methods of analysis that are permitted lead to similar safety results and identifies the fa...
Reforço de Estruturas de Alvenaria de Pedra - Contribuições do NCREP - FEUP
António Arêde; Aníbal Costa; João Paulo Miranda Guedes; Esmeralda PaupérioPretende-se neste artigo fazer uma descrição em jeito de retrospectiva, do que tem sido a actividade do NCREP (Núcleo de Conservação e Reabilitação de Edifícios e Património) da FEUP no domínio do reforço de estruturas de alvenaria de pedra nos últimos oito anos, procurando focar a atenção em casos de obra com claro interesse prático. Após uma abordagem sintética inicial dos principais tipos de estruturas de al...
Assessment of the seismic behaviour of Gondar church using a continuum damage m...
Bruno Luís Silva; António Arêde; João Paulo Miranda Guedes; Aníbal CostaStone masonry elements compose a large number of constructions not only in Portugal but in many other countries. The analysis of such this type of constructions is a complex task, mainly due to the large variability of the material properties. This analysis becomes particularly important when the structures are submitted to dynamic type loads, especially seismic loads. In this paper, an ancient Portuguese XII c...
In-Plane Behavior of a Stone Masonry Pier: Experimental Test, Numerical Simulat...
Alexandre Costa; Bruno Luís Silva; João Paulo Miranda Guedes; António Arêde; Aníbal CostaThis work aims to presenting a laboratory test of an existing Azorean stone masonry pier, transported to the Laboratory for Earthquake and Structural Engineering (LESE, FEUP, Porto), exhibiting significant energy dissipation but small displacement capacity. A complete 3D non-linear numerical simulation of the experimental test was also performed for simulating the observed response and good results were obtaine...
Analysis and diagnosis of timber structures in Porto historical centre
Tiago Ilharco Dias; João Paulo Miranda Guedes; António Arêde; Esmeralda Paupério; Aníbal CostaThe historical centre of Porto was considered in 1996 UNESCO World Heritage due to the outstanding universal value of the site, with urban fabric and historic buildings that bear remarkable testimony to the development over the past thousand years of an important European city". In order to contribute to the maintenance of this remarkable set of buildings, with historical, architectural, constructive and herita...
Structural Analysis of a Masonry Chimney – In-Situ Assessment Tools
Valter Lopes; João Paulo Miranda Guedes; Esmeralda Paupério; António Arêde; Aníbal CostaAt the end of the XIX and the beginning of the XX century there was a considerable industrial development in Portugal, characterized by the flourishing of several industrial plants. Brick masonry chimneys represent some of the most interesting examples of the industrial architectural heritage. The paper shows the case study of a chimney from a former ceramic factory near Porto city and that now is part of a cul...
Numerical Analysis of a Masonry Chimney Supported by In-Situ Assessment Tools
Valter Lopes; João Paulo Miranda Guedes; Esmeralda Paupério; António Arêde; Aníbal CostaAt the end of the XIX and the beginning of the XX century there was a considerable industrial development in Portugal, characterized by the flourishing of several industrial plants. Brick masonry chimneys represent some of the most interesting examples of the industrial architectural heritage. The paper shows the case study of a chimney from a former ceramic factory near Porto city and that now is part of a cul...
Análise de pavimentos de madeira através de ensaios in situ. O caso dos edifíci...
Tiago Ilharco Dias; João Paulo Miranda Guedes; Aníbal Costa; Esmeralda Paupério; António ArêdeO Centro Histórico da cidade do Porto foi considerado em 1996 Património Mundial pela UNESCO, devido ao valor excepcional do local, cuja malha urbana e edifícios históricos são um testemunho notável do desenvolvimento, ao longo dos últimos mil anos, de uma importante cidade europeia. De forma a permitir que este conjunto com elevado valor patrimonial, arquitectónico, construtivo e histórico seja preservado, con...
Comparative Study of Different Numerical Methodologies for the Ciclic Behavior ...
Nelson Vila Pouca; António Arêde; André Monteiro; Pedro Delgado; Patricio Rocha; João Paulo Miranda Guedes; Aníbal Costa; Raimundo DelgadoThis work mainly aims at a comparative study between several numerical methods for non-linear cyclic behavior simulation of reinforced concrete members, namely the continuum damage, the fiber and the concentrated plastic hinge models, in order to establish the applicability of each numerical tool. The damage model is based on 2D or 3D finite element representations, adopting two scalar damage variables for the ...
Metodologias de simulação do comportamento cíclico de elementos de betão armado...
João Pedrosa; Pedro Delgado; Patricio Rocha; António Arêde; Nelson Vila Pouca; João Paulo Miranda Guedes; Aníbal Costa; Raimundo DelgadoEste trabalho tem como principal objectivo o estudo comparativo de diversas metodologias existentes para a simulação numérica do comportamento cíclico não-linear de elementos de betão armado, com vista a compreender as suas vantagens e limitações. Neste estudo, que procura contribuir para estabelecer o campo de aplicação de cada uma das ferramentas numéricas, são adoptados os seguintes modelações: modelo de dan...
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