Departament d'Arquitectura i Enginyeria de la Construcció
http://hdl.handle.net/10256/1514
2025-04-06T02:12:42ZExperimental Study of Mechanical Behavior of Dry-Stone Structure Contact
http://hdl.handle.net/10256/25737
Experimental Study of Mechanical Behavior of Dry-Stone Structure Contact
Costa Prieto, Irieix; Llorens Sulivera, Joan; Chamorro Trenado, Miquel Àngel; Fontàs i Serrat, Joan; Soler Busquets, Jordi; Gifra Bassó, Ester; Savalle, Nathanaël
Dry-stone structures are traditional constructions that are present everywhere around the world, with their stability working mostly by gravity. Contrarily to their in-plane behavior, their out-of-plane response is very brittle and is fully controlled by the geometry, as well as the contact properties, between units (stones). Two main local failure modes of dry-joint contact are identified to lead to the global failure of the structure: (i) sliding and (ii) joint opening. Most of the existing studies investigated full structures to obtain the global response and/or couplet only, with the aim of only characterizing the contact. The present experimental work studies the effect of sliding and joint opening between stones at different scales: couplets, structures made of a few (up to five) blocks, and full walls, as well as varying the way the masonry units are assembled within a single structure. Different stones are employed to quantify potential differences. All the structures are loaded up to the collapse with a tilting table to induce out-of-plane actions. Repeatability tests are also conducted to better understand the effect of contact variability. This study unveils that the heterogeneity of the dry-joint contact, as well as the repartition of the blocks, affects the global response (both in terms of load capacity and failure mode). It also confirms that the most critical local failure mode is produced by the joint opening
2024-11-25T00:00:00ZUnshoring Process of a Temporary Pillar, in a Seventeen-Storey Building in Sant Adrià del Besós
http://hdl.handle.net/10256/25690
Unshoring Process of a Temporary Pillar, in a Seventeen-Storey Building in Sant Adrià del Besós
Costales Calvo, Ignacio; Font Basté, Jaume; Gimferrer Vilaplana, Xavier; Llorens Sulivera, Miquel
In the new construction of a seventeen-storey building, a provisional prop of fourteen-meter height, horizontally braced on two intermediate levels, has been used. Despite the fact that structural logic suggests that it can be cut without having any added safety precautions, the structure of the building, made up of cores and reinforced concrete slabs working spatially, indicates that certain mechanisms be introduced so that, in the event that different and worse behaviors than expected are detected, the process can be stopped and the consequences of the new situation observed can be analyzed. For this purpose, two pairs of four metallic cantilevers were introduced at mid-height with four hydraulic pistons. In addition, the best position of a series of strain gauges as well as transducers were analyzed. At first, a load test was carried out to check that the brackets worked correctly. Once this step was verified, the abutment was cut, and the results were read. The results of stresses and deformations were compared with those expected, always being satisfactory. Finally, four provisional profiles were placed in case after a few days the structure suddenly gave way. The research focuses on obtaining an efficient control system and achieving total security throughout the process, with the comparison of the results strictly necessary for this case. Few resources were used so as not to make the work excessively expensive. We have found important divergences, on the side of security, between calculation and reality. We have also considered that the construction process has an impact on the final results. In the same way, the rigidity of the temporal abutment must be considered before the calculation. All these factors have generated a lower-than-expected deformation in an 8 m cantilever
2024-10-29T00:00:00ZMALEAD: Machine Learning in Architecture Design
http://hdl.handle.net/10256/24825
MALEAD: Machine Learning in Architecture Design
Ortega, Lluís; Romero Merino, Enrique; Capomaggi Sequenzia, Maria Julia; Brullet Franci, Nil; Carrera Escale, Laura; Santacana, Amadeu; Devesa, Ricardo
MALEAD is a joint research project between mathematicians, computer scientists and architects that explores the capacity of machine learning models to design social housing; MALEAD es un proyecto de investigación desarrollado conjuntamente entre matemáticos, informáticos y arquitectos que explora la capacidad de los modelos de aprendizaje automatizado para proyectar vivienda social
2023-05-30T00:00:00ZEphimeral domesticity: Campsite
http://hdl.handle.net/10256/24823
Ephimeral domesticity: Campsite
Capomaggi Sequenzia, Maria Julia
The fleeting nature of life and the resulting transformation of inhabited spaces into artefacts that take on different socio-spatial forms through temporary shelters such as cabins, tents, and trailers is a major theme explored particularly in the 1960s and 1970s that introduced the concept of time into the formation of transient communities. This article focuses on the issue of the endless interior generated by transience in group living linked to tourism and recreational leisure, specifically elective nomadism, which represents alternative models of colonisation and the relationship between habitat and nature. Although the origins of these ideas can be traced back to projects and manifestos of experiments in utopian cities, some aspects of these avant-garde principles can be seen in communities linked to vacation, leisure, and free time today. Lastly, the campsites in Girona serve as an example and case study where these theoretical principles have been spontaneously implemented and are now subject to regulation. They have shaped a model where the city is internalised and transformed into an expanded model of domesticity
2024-01-29T00:00:00Z
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<title>Experimental Study of Mechanical Behavior of Dry-Stone Structure Contact</title>
<link>http://hdl.handle.net/10256/25737</link>
<description>Experimental Study of Mechanical Behavior of Dry-Stone Structure Contact
Costa Prieto, Irieix; Llorens Sulivera, Joan; Chamorro Trenado, Miquel Àngel; Fontàs i Serrat, Joan; Soler Busquets, Jordi; Gifra Bassó, Ester; Savalle, Nathanaël
Dry-stone structures are traditional constructions that are present everywhere around the world, with their stability working mostly by gravity. Contrarily to their in-plane behavior, their out-of-plane response is very brittle and is fully controlled by the geometry, as well as the contact properties, between units (stones). Two main local failure modes of dry-joint contact are identified to lead to the global failure of the structure: (i) sliding and (ii) joint opening. Most of the existing studies investigated full structures to obtain the global response and/or couplet only, with the aim of only characterizing the contact. The present experimental work studies the effect of sliding and joint opening between stones at different scales: couplets, structures made of a few (up to five) blocks, and full walls, as well as varying the way the masonry units are assembled within a single structure. Different stones are employed to quantify potential differences. All the structures are loaded up to the collapse with a tilting table to induce out-of-plane actions. Repeatability tests are also conducted to better understand the effect of contact variability. This study unveils that the heterogeneity of the dry-joint contact, as well as the repartition of the blocks, affects the global response (both in terms of load capacity and failure mode). It also confirms that the most critical local failure mode is produced by the joint opening
</description>
<title>Unshoring Process of a Temporary Pillar, in a Seventeen-Storey Building in Sant Adrià del Besós</title>
<link>http://hdl.handle.net/10256/25690</link>
<description>Unshoring Process of a Temporary Pillar, in a Seventeen-Storey Building in Sant Adrià del Besós
Costales Calvo, Ignacio; Font Basté, Jaume; Gimferrer Vilaplana, Xavier; Llorens Sulivera, Miquel
In the new construction of a seventeen-storey building, a provisional prop of fourteen-meter height, horizontally braced on two intermediate levels, has been used. Despite the fact that structural logic suggests that it can be cut without having any added safety precautions, the structure of the building, made up of cores and reinforced concrete slabs working spatially, indicates that certain mechanisms be introduced so that, in the event that different and worse behaviors than expected are detected, the process can be stopped and the consequences of the new situation observed can be analyzed. For this purpose, two pairs of four metallic cantilevers were introduced at mid-height with four hydraulic pistons. In addition, the best position of a series of strain gauges as well as transducers were analyzed. At first, a load test was carried out to check that the brackets worked correctly. Once this step was verified, the abutment was cut, and the results were read. The results of stresses and deformations were compared with those expected, always being satisfactory. Finally, four provisional profiles were placed in case after a few days the structure suddenly gave way. The research focuses on obtaining an efficient control system and achieving total security throughout the process, with the comparison of the results strictly necessary for this case. Few resources were used so as not to make the work excessively expensive. We have found important divergences, on the side of security, between calculation and reality. We have also considered that the construction process has an impact on the final results. In the same way, the rigidity of the temporal abutment must be considered before the calculation. All these factors have generated a lower-than-expected deformation in an 8 m cantilever
</description>
<title>MALEAD: Machine Learning in Architecture Design</title>
<link>http://hdl.handle.net/10256/24825</link>
<description>MALEAD: Machine Learning in Architecture Design
Ortega, Lluís; Romero Merino, Enrique; Capomaggi Sequenzia, Maria Julia; Brullet Franci, Nil; Carrera Escale, Laura; Santacana, Amadeu; Devesa, Ricardo
MALEAD is a joint research project between mathematicians, computer scientists and architects that explores the capacity of machine learning models to design social housing; MALEAD es un proyecto de investigación desarrollado conjuntamente entre matemáticos, informáticos y arquitectos que explora la capacidad de los modelos de aprendizaje automatizado para proyectar vivienda social
</description>
<description>Ephimeral domesticity: Campsite
Capomaggi Sequenzia, Maria Julia
The fleeting nature of life and the resulting transformation of inhabited spaces into artefacts that take on different socio-spatial forms through temporary shelters such as cabins, tents, and trailers is a major theme explored particularly in the 1960s and 1970s that introduced the concept of time into the formation of transient communities. This article focuses on the issue of the endless interior generated by transience in group living linked to tourism and recreational leisure, specifically elective nomadism, which represents alternative models of colonisation and the relationship between habitat and nature. Although the origins of these ideas can be traced back to projects and manifestos of experiments in utopian cities, some aspects of these avant-garde principles can be seen in communities linked to vacation, leisure, and free time today. Lastly, the campsites in Girona serve as an example and case study where these theoretical principles have been spontaneously implemented and are now subject to regulation. They have shaped a model where the city is internalised and transformed into an expanded model of domesticity
</description>