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Characterization of the seismic behaviour of traditional timber frame walls
Poletti, ElisaTese de doutoramento Engenharia Civil - Estruturas ; Timber frame structures constitute an important cultural heritage of many countries, since they represent a typical anti-seismic construction adopted worldwide. Therefore, the preservation of these structures is of the utmost importance. Although recent earthquakes have pointed out the good seismic behaviour of this kind of structures, few experimental studi...
An overview on the seismic behaviour of timber frame structures
Vasconcelos, Graça; Lourenço, Paulo B.; Poletti, ElisaTraditional timber frame walls are an important structural element of many buildings and are usually composed of vertical posts and horizontal beams with bracing diagonal elements. In Portugal the timber frame walls, known as frontal walls, are usually part of Pombalino buildings, which were introduced by the Marquis of Pombal, who was responsible for the reconstruction of Downtown Lisbon after the great earthq...
Seismic performance of traditional half-timbered walls : experimental results
Poletti, Elisa; Vasconcelos, GraçaHalf-timbered structures constitute an important cultural heritage of many countries, since they represent a typical anti-seismic construction adopted worldwide [1][2]; therefore, their preservation is of the utmost importance. Although recent earthquakes have pointed out the good seismic behaviour of this kind of structures, few experimental studies are available on the performance of traditional half-timbered...
Influence of infill on the cyclic behaviour of traditional half-timbered walls
Poletti, Elisa; Vasconcelos, Graça; Oliveira, Daniel V.Half-timbered buildings represent an important historical heritage in many countries. They are diffused in various regions for different reasons, such as availability of materials, to lighten a structure, low cost and the strength they offer, and as a construction element able to resist seismic actions. This latter issue is the research topic analysed here, as half-timbered buildings have been specifically used...
Assessment of the seismic behaviour of unreinforced : traditional half-timbered...
Poletti, Elisa; Vasconcelos, GraçaHalf-timbered buildings represent an important historical heritage in many countries. They are diffused in various regions for different reasons, among which for being able to resist seismic actions. Despite the great popularity of this kind of structures, few studies are available on their global behaviour or on that of their single structural elements. The aim of this paper is to study the behaviour under cyc...
Seismic behaviour of traditional half-timbered walls : cyclic tests and strengt...
Poletti, Elisa; Vasconcelos, GraçaHalf-timbered buildings represent an important historical heritage in many countries. They are diffused in various regions for different reasons, such as availability of materials, to lighten a structure, their low cost, the strength they offer and as a construction element able to resist seismic actions. This latter issue is the research topic analysed here, as half-timbered buildings have been specifically us...
Overview of different strengthening techniques applied on walls used in histori...
Miccoli, L.; Müller, U.; Silva, B.; Da Porto, F.; Vintzileou, E.; Vasconcelos, Graça; Poletti, Elisa; Hračov, S.; Pospíšil, S.; Adami, C. E.Different types of vertical elements, such as masonry, massive walls and timber frame elements, exhibit a different response exposed to the same loading scenario, in particular when it concerns dynamic loading. It is therefore paramount to investigate the principal response of different types of construction with different materials under a variety of loading scenarios. From there, the design of strengthening t...
In-plane shear behaviour of traditional timber walls
Vasconcelos, Graça; Poletti, Elisa; Salavessa, Eunice; Jesus, Abílio M. P.; Lourenço, Paulo B.; Pilaon, PreechaThe reconstruction of Lisbon Downtown after the 1755 earthquake was based on a novel constructive system based on masonry buildings with an internal three-dimensional timber-framed structure named "gaiola pombalina". This internal structure aimed at improving the global stability of masonry buildings, enhancing their capacity to dissipate energy under seismic loadings. This paper aims at getting experimental in...
In-plane shear behaviour of traditional timber walls
Vasconcelos, Graça; Poletti, Elisa; Salavessa, Eunice; Jesus, Abílio M. P.; Lourenço, Paulo B.; Pilaon, PreechaThe reconstruction of Lisbon Downtown after the 1755 earthquake was based on a novel constructive system based on masonry buildings with an internal three-dimensional timber-framed structure named “gaiola pombalina”. This internal structure aimed at improving the global stability of masonry buildings, enhancing their capacity to dissipate energy under seismic loadings. This paper aims at getting experimental in...
Innovative masonry blocks for partition walls
Vasconcelos, Graça; Poletti, Elisa; Medeiros, Pedro; Mendonça, Paulo; Carvalho, Pedro; Cunha, Sandra; Camões, Aires; Lourenço, Paulo B.This paper intends to propose a non structural system of partition walls with monolithic blocks based on a composite material resulting from an admixture of cork and textile fibers combined with a non cement binder, gypsum. These blocks consist of two half blocks which have to be connected during laying process. The developed blocks were first tested under compressive and flexural loading in order to derive the...
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