Purpose This paper aims to review the application of integrated design strategies in several cases of housing in south-central Chile in search of ways to significantly reduce energy loss and demand. Design/methodology/approach First, seven main design features of energy-efficient buildings in developed countries were identified. Second, these features were reviewed in two professional case studies from architectural practices and two academic exercises on residential design in south-central Chile. In all cases reviewed, characteristics of integrated design were verified to reductions in energy loss and demand. Finally, the procedure implemented was evaluated through surveys of those practitioners responsible for each experience studied. Findings This process made it possible to highlight four main features of integrated design, namely, pre-established performance goals, interdisciplinary collaboration, regular broad-ranging meetings and the use of performance assessment tools. With these techniques, reductions of more than 50 per cent in the energy requirements of the housing designs were achieved, while safeguarding the functional, aesthetic and economic aspects of the projects. Research limitations/implications However, professionals currently working in this field did express their concern regarding responsibility for the design and the time needed to complete the process. Practical implications Furthermore, this experience also identified similar modifications made to the design of the houses, which revealed general possibilities for improving energy performance. Social implications The conclusions obtained have been exposed in conferences and graduate programmes and applied in two real projects for the benefit of society: first, the improvement of building envelopes in social housing in Temuco; and second, CASA+, a modular, prefabricated and energy efficient house prototype. Originality/value This paper carried out a novel review of an integrated design process in housing cases of developing countries, and identified the key features, which improve the environmental performance of dwellings.
Products derived from trees have been used by mankind for thousands of years, where timber has a long tradition as an ecological construction material. There is currently an increasing trend in multi-storey timber buildings, because of the projected growth in the demand for housing in urban areas between now and 2050, along with the urgent need for a more sustainable and productive construction industry. The construction of these buildings is now possible thanks to the new advances in architecture, engineering, and construction (AEC) and the new technological developments around timber construction. Its industrialization requirements imply a paradigm shift for the construction industry, which requires, among other aspects, the early and collaborative integration of stakeholders in its design and construction process. According to this, the objective of this review article is to determine the main advances and limitations related to the design and construction of multi-storey timber buildings, categorizing them in aspects such as sustainability, engineering and construction sciences, and collaborative design. The methodology of this article was based on the review of 266 articles published in Web of Science (WoS), as indexed scientific journals, between 2017 and mid-2022, performing a comparative and cooccurrence analysis of the contents. The results evidenced that 73% of the articles showed advances and limitations corresponding to the engineering and construction sciences category, 23% to sustainability, and the remaining 4% to collaborative design. The main advances in the development of multi-storey timber buildings are related to seismic analysis, connections design, fire performance, and fire design. While the main limitations are related to social sustainability, the results are not conclusive due to the low number of publications that support them.
Este estudio descriptivo exploratorio analiza el aporte del adobillo al espacio solar de las casas de Valparaíso construidas durante la 4ta etapa de crecimiento de la ciudad de Valparaíso, período de 1811 a la década de 1950. Los espacios solares formaron parte de los sistemas Globo y Marco de Plataforma, cuyas paredes de masa se rellenaron con adobillo, esta característica se analiza desde un aspecto técnico para estudiar su influencia en el confort térmico.Para estudiar el comportamiento térmico del espacio solar y el muro de adobillo se aplicaron dos herramientas de medición, dataloggers y simulación térmica dinámica, que ayudan a identificar los factores que contribuyen a la eficiencia energética, y especialmente, cómo contribuyen el espacio solar y el muro de adobillo al clima interior de estas casas del patrimonio histórico de Valparaíso.Primero, para entender el espacio solar, “galería” en español, se realiza un análisis histórico en la ciudad de Valparaíso, identificando el componente arquitectónico ambiental y sus partes, reconociendo los valores patrimoniales presentes en la ciudad como resultado del aporte arquitectónico de migrantes ingleses y estadounidenses que trajeron las técnicas constructivas. En segundo lugar, se mide y simula este espacio y sus elementos, se analizan y contrastan los datos obtenidos con ambas herramientas.Los resultados corroboraron que el Marco de Globo relleno con muro de adobillo es responsable del control térmico de los espacios adyacentes, actuando como mediador entre estos dos ambientes, donde el espacio solar es a su vez el mediador del ambiente externo y el ambiente interior.Determinar que este componente arquitectónico ambiental pasivo contribuye favorablemente al confort térmico en el espacio solar y en el hogar en su conjunto. Finalmente, las conclusiones obtenidas podrían potencialmente servir para la futura rehabilitación energética de viviendas
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