ABSTRACT
This article discusses the innovative design of an office building in Ljubljana, Slovenia, which the authors and their colleagues designed between 2018 and 2020, with a construction start date in the second half of 2021. The introduction to this article presents architectural, sustainable and structural principles that have been taken into account in the design. Great attention was paid to ensuring a fully adaptable design, by which the free displacement of partition walls throughout the whole life cycle of the building is enabled, i.e. not interrupted or predetermined by the construction system. The building, with a size of 40 x 40 x 18 m, is fully supported by only four communication and installation reinforced concrete cores and the enclosing steel facade positioned outside the building's thermal envelope. The structure of the ceiling in the flexible part of the building is not interrupted by beams, as the entire secondary structure faces upwards into the technical floor zone. With the integration of structural and sustainable principles, the building with its flexible and adaptable content has been designed to provide maximum durability and efficiency over its whole life cycle, while at the same time preventing the impact of negative climate effects. With the so-called deep facade, the predicted cooling energy is decreased by 70%. It is an example of architectural design philosophy returning to the roots of the principles of construction. Given the available materials and climatic characteristics of the location, architects have always strived to optimise the performance of the structure of the building with equal consideration given to the functionality, life span, and the microclimate created within of the building the technical floor zone.
