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Casa de los Marqueses del Nervión: reforma de la sede de la Cruz Roja para su uso como apartamentos
Full text linkSe trata de una Casa Palacio construida en el S.XVII, de estilo barroco sevillano, perteneció originalmente a los Marqueses de Valencina, pasando posteriormente a ser propiedad de los Marqueses de Nervión. Fue donada por los Marqueses de Nervión en 1986 a la Institución benéfica de la Cruz Roja Española, que la utilizó como sede provincial. Según se recoge en la ficha del Plan Especial de Protección del conjunto Histórico de Sevilla, Sector 8.2 «San Andrés- San Martín» se trata de una Casa Palacio construida en el S. XVII, siendo remodelada en el S. XIX
Sobre la reconstrucción de la Puerta de la Carne
No full textEsta investigación ha analizado datos históricos e imágenes de la Puerta de la Carne entre los siglos XVI y XIX para visualizar y comprender sus transformaciones arquitectónicas y urbanas. Además, ha acometido su reconstrucción gráfica, por primera vez con rigor científico, considerando los principios de la Carta de Londres de 2006 y los Principios de Sevilla de 2012 ratificados por ICOMOS en 2017
Residencial Zaurak. Curvas y planos
No full textLa onda de coronación remata una potente imagen y refleja el escalonamiento del terreno. Dos bloques paralelos, en la cornisa de Madrid, contienen 196 viviendas de ventilación cruzada y orientadas al sur, espacios comunitarios, zonas verdes y cubiertas habitables
Estudio de daños en cubiertas planas
No full textHace ya bastantes años que la Fundación Musaat acordó la realización de una investigación de ámbito nacional sobre deficiencias constructivas, que abarcara todos los capítulos de obra y que tomara de fuente de datos una documentación administrativa, técnica y legal que fuera fiable, completa e irrefutable. Una vez realizada dicha investigación, sin estudios precursores análogos conocidos, y en la que el abajo firmante fue uno de sus dos autores, se decidió dar a conocer los resultados obtenidos mediante la emisión del informe: Estudio Estadístico nacional sobre Patologías en la Edificación. Después de ello, en 2019 se propuso la elaboración de un conjunto de publicaciones segmentadas, basadas en los expedientes anteriormente analizados, pero releyéndolos para “afinar y exprimir más” la extracción de los valores inicialmente obtenidos, al tiempo que conseguir la transformación de ciertos descriptores o la incorporación de otros nuevos (ya sean primarios o secundarios) que amplíen y refuercen el marco global técnico en donde nos movemos. De esta manera, después de casi dos años de trabajo preparando la metodología, la logística, la jerarquía actualizada de interrelaciones y el análisis de casi 5.000 procesos patológicos, se redacta este resumen de la labor realizada sobre las cubiertas planas. Se han incorporado los nuevos descriptores de “tipología” y “variante”, al tiempo que se han resignificado completamente los de “elemento” y “material”. Toda esa novedosa información y categorización, junto con la amplísima ya existente, hace que la colección “Estudio sectorizado de daños constructivos en España” que se inicia y presenta ahora, sea una oportunidad para que todos puedan conocer con mayor hondura las patologías de las diferentes unidades constructivas. Puede ser de interés también que el lector acuda a la consulta de la monografía BTN-1 y a la sección de cubiertas planas de los Documentos de Orientación Técnica en Edificación que ha publicado la Fundación Musaat
Geometric characterization and segmentation of historic buildings using classification algorithms and convolutional networks in HBIM
No full textBuilding Information Models (BIM) are essential for managing information and creating 3D digital representations, especially in the study of historic buildings. However, generating BIM models from point clouds in these structures is challenging due to complex algorithms and architectural forms. Artificial Intelligence (AI) technologies are beginning to automate point cloud classification and segmentation, but fully effective methods for historic buildings are still lacking. This study compares Machine Learning (ML) methodologies and a Deep Learning (DL) classifier. It evaluates the effectiveness of a neighbourhood algorithm with commercial software used by geometers and surveyors, and the applicability of convolutional networks. The methods tested include the Random Forest algorithm in MATLAB, commercial geomatics software, and a variant of the PointNet architecture for DL. The results are evaluated by BIM experts, highlighting the high effectiveness of these approaches and their potential contributions to the field
Calcium hydroxide, magnesium hydroxide, silicon dioxide nanoparticles and their combinations as consolidants for lime mortars and gypsum plasters
No full textThis paper studies the effectiveness of four consolidation treatments based on nanoparticles suspensions: calcium hydroxide (Ca-NP), magnesium hydroxide (Mg-NP), a treatment combining calcium hydroxide and magnesium hydroxide (Ca/Mg-NP), and a treatment consisting of calcium hydroxide and silicon dioxide (Ca/Si-NP) that were both applied separately. The suspensions were sprayed on gypsum plasters and lime renders which are common substrates in historical constructions and show a high degree of similarity with the treatments. The consolidation efficiency was evaluated using non-destructive techniques, such as peeling test, Shore-D hardness, water flow using Karsten tube and water vapour permeability tests. In addition, TEM images and XRD tests demonstrated the formation of a new C-S-H cementing phase when Ca/Si-NPs were combined due to a reaction between Ca(OH)2 with SiO2. Colour tests (CIE-L*a*b*) showed the consolidants did not produce major colour alterations, although the Ca-NP treatment caused a slight lightness increase. The strengthening effect was greater in lime mortars and water flow was moderately reduced in all treatments, except in mortars coated with Ca/Mg-NP. Finally, the chemical nature of the treatments is similar to the substrates, and they did not significantly alter the water vapour permeability of the studied materials
Sustainability Evaluation of Residential Buildings Based on the Footprint Family: Application to Case Studies in Andalusia
No full textThe criteria on green public procurement of the European Union establish that the economic budgets of building projects must be complemented by their derived environmental and social costs. These criteria are currently being adapted to the requirements related to the circular economy, such as the use of methods to evaluate buildings environmentally. However, most methods available in the European and Spanish markets require prior training, which makes their use difficult. This paper presents an evaluation method, CEACE, for housing construction based on the determination of their footprints (ecological, carbon, and water footprints), also called the footprint family, to which the economic and social evaluation is added, as is the quantification of the construction and demolition waste generated. This method is validated with the assessment of fifteen residential buildings in Andalusia and creates an indicator that will allow technicians, companies, and administrations to evaluate projects in accordance with the criteria of green public procurement. The method is sensitive to changes in the type of building, foundation solution, and underground construction
The Collection ‘General Maps of the City of Cadiz’: Use and Conversion of Scales by Military Engineers of the 18th-Century
No full textThe maps preserved in various national and foreign cartographic collections, that represent the entire 18th-century urban plot of Cadiz, currently comprise twenty-one copies. Together they constitute a sufficiently representative example of the city’s large military cartographic production in this period and of the original collection itself, which probably contained more maps that have unfortunately been lost. This example consists largely of hand-drawn maps based on an orthographic or orthogonal projection in accordance with the canons of urban representation of the time, and summarises almost a hundred years of urban mapping and military architecture that correspond to the city’s enlightened period. Thanks to the detailed account of the blocks, buildings, fortifications, and intervention projects reflected therein, it also constitutes an essential documentary source for knowledge of the morphological development of Cadiz during such an important phase. Due to the number of copies, their plastic quality, the period covered, and the wealth of information, this collection forms a paradigm for urban cartographic production in 18th-century Spain. Most of the collection is in the repositories of the General Military Archives of Madrid, the Army Geographical Centre, and the Bibliothèque Nationale de France (BnF), which contain ten, five, and four maps, respectively
Geopolymer concretes designed for environmental bioremediation: experimental results obtained in the Keops project
No full textLinguistic Adaptation for the Preventive Action Control in Construction Work Environments
No full textIn the field of construction works, the results of applying the various occupational risk assessment methodologies, both qualitative and quantitative, are communicated to the workers. However, this communication procedure is complex due to its difficult temporal application and complicated interpretation. This study aims to analyse the mathematical results of the Preventive Action Level method to determine the appropriate linguistic communication procedure for the control of preventive action, establishing the bases for safety evaluation. Methodologically, the difference in concept between risk assessment and safety assessment is raised. It is considered that, to determine adequate communication in the construction work environment, more knowledge is required in the discipline of neuroscience that considers social behaviour, the construction environment, and the act of communicating. This communication procedure implies the need to implement body sensors and materials for monitoring to establish a linguistic basis for human-machine environments through artificial intelligence