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Highlights • The details of the project of a 6-storey CLT building are presented. • The design for gravity and seismic loads is discussed in detail. • A recently developed proposal of revision of the timber chapter within the Eurocode 8 on seismic design is applied. • The design of the anchoring connections to the concrete foundation for multi-storey timber buildings is discussed. • Some details are also given regarding construction issues and fire design. Abstract This paper presents the design and construction of a six-storey residential cross-laminated timber (CLT) building in Florence, Italy. The different phases of the design process are described in detail, together with the production, transportation and on-site construction. Special emphasis is given to the seismic design, where a recently developed proposal for the revision of the Eurocode 8 has been applied, demonstrating its feasibility. Some design and construction issues are also addressed, including the connection of hold-down anchors to the concrete foundation. This connection represents the weakest link of the traditional commercial connectors used for CLT buildings, especially concerning the seismic design. [ABSTRACT FROM AUTHOR]

Climatic conditions strongly affect the energy performance of buildings, and due to the synergy between global climate change and the Urban Heat Island (UHI) effect, the climatic conditions inside and outside the city are highly different. However, weather data collected at airports are commonly used for building energy simulations and these data do not take into account real temperature distribution in cities. Many studies in the literature address the topic but mostly considering only a couple of urban and non-urban stations. In this paper, the urban climate in Rome, Italy, is analysed after monitoring of the air temperature and relative humidity in four selected neighbourhoods and one reference station from October 2014 until September 2017. Rome is characterised by a composite urban pattern and high variability of building types, of which the four selected areas are representative. The heating degree days decrease up to 18% and cooling degree days increase up to 157% in the urban area with respect to the rural reference and the area most affected by the UHI is the city centre. The UHI is more intense in summer than in winter (average increase between 0.7 °C and 1 °C); while the diurnal and nocturnal UHI depends on the season and the neighbourhood. Then, the energy performance of a representative apartment block and a typical office building was computed using the measured data. Regarding the predicted energy performance, comparing the four urban sites and the reference site, the UHI causes a reduction of heating consumption up to 21% in residential building and 18% in the office building. An increase of cooling consumption up to 74% is instead computed for the residential building and up to 53% for the office building. [ABSTRACT FROM AUTHOR]