Browsing by Author "Piñero, Ignacio"
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Item Análisis de la pasarela giratoria alfonso XIII de ondarroa(University of Cantabria - Building Technology R&D Group, 2018) Piñero, Ignacio; Marcos, Ignacio; San Mateos, Rosa; Garmendia, Leire; Egiluz, Ziortza; Villegas, Luis; Lombillo, Ignacio; Blanco, Haydee; Boffill, Yosbel; Villegas, Luis; Lombillo, Ignacio; Blanco, Haydee; Boffill, Yosbel; E&I SEGURAS Y RESILIENTESItem Bending tests on building beams containing electric arc furnace slag and alternative binders and manufactured with energy-saving placement techniques(2021-08) Santamaría, Amaia; García-Llona, Aratz; Revilla-Cuesta, Víctor; Piñero, Ignacio; Ortega-López, Vanesa; E&I SEGURAS Y RESILIENTESThe environmental impact of the building sector is especially relevant during the construction phase. Both the materials and the construction methods that are currently in use must be reconsidered, in order to minimize the environmental impact of concrete-based structures. This research is therefore focused on achieving greener concrete-based building structures. In this context, the feasibility of careful use of materials for concrete manufacture and the use of construction techniques that can facilitate and reduce energy consumption during placement are both studied. To do so, twelve sample beams were prepared using eight different sustainable high-workability structural concretes. The aim was to maximize the use of the by-products that amounted to over 80% of the concrete mass, steelmaking slags, fly ash, and quarry waste, and to employ energy-saving concrete placement techniques. The beams underwent bending tests in which their mechanical behavior and their compliance with the specifications of the most relevant building codes were verified. The results pointed to the feasibility of increased sustainability in the field of building engineering through the suitable use of selected by-products and techniques.Item ESTUDIO CONSTRUCTIVO DE LA CASA DE NÁUFRAGOS DEL PUERTO DE BILBAO(University of Cantabria - Building Technology R&D Group, 2022) Marcos, Ignacio; Díez, Jesús; Piñero, Ignacio; Egiluz, Ziortza; Blanco, Haydee; Boffill, Yosbel; Lombillo, Ignacio; E&I SEGURAS Y RESILIENTESItem Estudios Previos En Un Puente Singular: Puente De Almarail En Soria(University of Cantabria - Building Technology R&D Group, 2020) Díez Hernández, Jesús; Marcos, Ignacio; Piñero, Ignacio; García, Aratz; Briz, Estibaliz; Lombillo, Ignacio; Blanco, Haydee; Boffill, Yosbel; E&I SEGURAS Y RESILIENTES; Tecnalia Research & InnovationItem Flexural strengthening of low-grade reinforced concrete beams with compatible composite material: Steel Reinforced Grout (SRG)(2020-02-28) Larrinaga, Pello; Garmendia, Leire; Piñero, Ignacio; San-José, José Tomás; E&I SEGURAS Y RESILIENTESA substantial fraction of the existing housing stock is built with low-quality reinforced concrete that shows poor mechanical properties. Those concretes, labelled low-grade concretes, present certain drawbacks when common strengthening techniques are used for their rehabilitation. Over recent decades, a number of investigations have added to our knowledge of strengthening materials in the form of inorganic-based composites. Amongst those materials, Steel Reinforced Grout (SRG) presents optimum characteristics for flexural strengthening in situations where the use of other retrofitting techniques is not recommendable. Previous applications of SRG include the reinforcement of constructive components that include masonry walls, arches, and even slabs, in positions where the adherence of externally bonded organic composites such as FRP can present difficulties. The adherence of organic binders is not appropriate for low-performance concrete substrates and can cause FRP laminate debonding and the detachment of the concrete substrate. The central theme of this study is the strengthening of low-performance RC beams with SRG to resist flexural forces. This innovative material forms a cement-based matrix, rather than an organic binder, which is a partial solution for the above-mentioned lack of full compatibility between ancient concrete and externally bonded strengthening solutions. In addition, SRG presents additional advantages such as: fire resistance, durability, and some reversibility. Tests are performed on eighteen reinforced concrete (RC) beams (17 MPa): two reference specimens and sixteen specimens to study particular aspects of the SRG strengthening solution: the strengthening ratio and the performance of two anchorage systems. The results achieved in this research work lead us to conclude that SRG is an effective solution for the retrofitting of low-grade reinforced concrete to increase its load-flexural and deformation capacity.Item La grúa carola. Un icono del patrimonio histórico industrial de bilbao(University of Cantabria - Building Technology R&D Group, 2016) Piñero, Ignacio; Díez, Jesús; Pérez, Laura; Pérez de Arrilucea, Ainhoa; Cuadrado, Jesús; Villegas, Luis; Lombillo, Ignacio; Blanco, Haydee; Boffill, Yosbel; E&I SEGURAS Y RESILIENTESItem The historic city in the climate change. Mives methodology approach(University of Cantabria - Building Technology R&D Group, 2018) Gandini, Alessandra; Garmendia, Leire; San Mateos, Rosa; Prieto, Iñaki; Sanjosé, José Tomás; Piñero, Ignacio; Villegas, Luis; Lombillo, Ignacio; Blanco, Haydee; Boffill, Yosbel; Villegas, Luis; Lombillo, Ignacio; Blanco, Haydee; Boffill, Yosbel; LABORATORIO DE TRANSFORMACIÓN URBANA; E&I SEGURAS Y RESILIENTES; Tecnalia Research & InnovationA large number of historic structures are over risks in cities due to weather patterns and global climate change: sea-level rise, increasing frequency of storms and other extreme precipitation events. Conservation of urban areas of historic value implies the management of these changes, by ensuring the protection of social values as well as the authenticity and integrity of heritage sites. Disaster risk reduction and adaptation to climate change should be seen as components of conservation, as they all share the objective of addressing the challenges of sustainable urban development. This research presents a methodological approach (MIVES-Integrated Value Model for Sustainability Assessment) for vulnerability and risk assessment, supported by an information strategy and a multi-scale urban model, in order to provide decision-making with objective and justified prioritization. A decision tree is built as a basis for future developments in specific urban case studies, supplying in present work some partial discussion by delivering a balanced solution in terms of accurate results and data requirements, by using a categorization method for urban modelling. The information is organized and structured in hierarchical levels, permitting the comparison of building vulnerabilities and risks through the use of a unique index, thus facilitating the decision-making that is needed for the prioritization of efficient interventions.Item METODOLOGÍA PARA LA MEJORA DE LA EFICIENCIA DE LAS INVERSIONES DE LAS DIVERSAS INFRAESTRUCTURAS INDUSTRIALES DE LA ANTIGUA ZONA PORTUARIA DE LA BAHÍA DE LA HABANA(University of Cantabria - Building Technology R&D Group, 2022) Piñero, Ignacio; De La Cruz, Raimundo; Bresó, Juan Carlos; Cuadrado, Jesús; Ezquerro, Mikel; Blanco, Haydee; Boffill, Yosbel; Lombillo, Ignacio; E&I SEGURAS Y RESILIENTESItem Multi-criteria decision-making for grading the rehabilitation of heritage sites. Application in the historic center of La Habana(2017-07) Piñero, Ignacio; San-José, José T.; Rodríguez, Patricia; Losáñez, Milagros M.; E&I SEGURAS Y RESILIENTESThe rehabilitation of an historic city centre is approached in this investigation through a multi-criteria decision-making methodology. The methodology assists a panel of experts to take key decisions on rehabilitation options. The viability of the methodology is verified through its practical application in the Historic Centre of La Habana, in which extreme situations are analyzed: a culturally protected (World Heritage) urban zone with many degraded buildings at risk of collapse. In view of the urgency of the rehabilitation decisions, efficient criteria for “emergency actions” on the 3593 buildings of that historic centre were analyzed. The conclusions were that 1033 buildings were in need of one or various emergency actions, with 169 awaiting demolition or restoration and, finally, 597 in need of non-urgent repairs.Item Priorización para la rehabilitación de edificaciones en el centro histórico de la habana(2014) Piñero, Ignacio; García, David; Nicolás, Olatz; De La Cruz, Raimundo; San-José, José T.; E&I SEGURAS Y RESILIENTES; TRAZABILIDAD CIRCULAR; LABORATORIO DE TRANSFORMACIÓN URBANAItem Self-Compacting Concrete with Recycled Concrete Aggregate: Resistance against Aggressive External Agents(International Center for Numerical Methods in Engineering, 2020) Revilla-Cuest, Víctor; Skaf, Marta; García-Llon, Aratz; Piñero, Ignacio; Manso, Juan M.; Ortega-Lópe, Vanesa; Serrat, Carles; Casas, Joan Ramon; Gibert i Armengol, Vicente; Tecnalia Research & Innovation; E&I SEGURAS Y RESILIENTESThe use of waste in civil-engineering products, such as concrete and asphalt mixes, is a very effective strategy for reducing high consumption levels of Natural Aggregates (NA) in the construction sector. In this research, rejected precast concrete elements of high compressive strength are studied, following their crushing for use as a high quality Recycled Concrete Aggregate (RCA) in the manufacture of Self-Compacting Concrete (SCC). High volumes of this waste stream are employed in the mixture, completely replacing the coarse fraction of the natural aggregate (100% replacement rate) and half of the fine fraction (50% replacement rate). Once hardened, samples of the recycled SCC are exposed to several aggressive external agents, in order to evaluate their performance and durability in aggressive environments. Behavioral tests on the concrete in the presence of the most frequent aggressive agents in the surrounding environment demonstrated that the SCC containing RCA was resistant to freeze/thaw and moist/dry cycles, and sulphate attack, according to the results obtained in 4, 3 and 2 samples respectively, and of sufficient durability for use in structural concrete components.Item Vulnerability Assessment of Historic Areas to Heat Waves. The Case Study of Bilbao(Springer Science and Business Media B.V., 2024) Quesada-Ganuza, Laura; Garmendia, Leire; Villaverde, Ane; Egiluz, Ziortza; Roji, Eduardo; Piñero, Ignacio; E&I SEGURAS Y RESILIENTESThe impacts of climate change, such as extreme events and progres-sive global warming, threaten the conservation and habitability of urban cultural heritage. Understanding climate risks to heritage must be part of planning and policy decision-making processes to increase the resilience and sustainability of both social and built environmental systems.. However, despite a large body of literature on climate-related hazards, there is a notable knowledge gap regarding a holistic conceptualization of hazards in historic urban areas, especially in the case of heat waves and urban heat island phenomena. The main goal of this study was to analyze and represent the interaction between historic built environment and heat waves via Geographic Information Systems (GIS) data, considering the vulnerability of historic areas both as urban systems and as heritage areas. To frame a holistic approach, socio-economic, cul-tural, governance (services and resources) and physical (gathering tangible characteristics of all infrastructures, elements and buildings) aspects of the system are taken into ac-count. To this end, a multicriteria risk assessment methodology is developed. Key performance indicators, criteria and requirements addressing relevant vulnerable elements of historic urban areas are identified for the development of the methodology. Moreover, as the foundation for the risk assessment, a categorization based on vulnerability to heat waves is proposed for both buildings and urban spaces. Here, this methodology’s results and its application on a GIS-based model in the historic area of Bilbao (Basque Country, Spain) are presented. This work aims to be replicable and to serve as a reference for future holistic assessments of heatwaves risks in historic urban areas worldwide.