Comparative digital design strategies for structural systems of mid-rise buildings


Auteurs : Maryam Jafari + Denis Zastavni

The way to design and manufacture buildings has from now on a vital influence on our environment and therefore on the future fate of mankind. It impacts the environment in all life cycle stages: resource extraction, producing materials, construction, buildings use, and demolition. The building represents 40% of extracted resources (Herczeg, et al. 2014), 11% of energy CO2 emissions, 6% of energy consumption. Furthermore, global building stock will double by 2060 (UN Environment and International Energy Agency 2017), and by 2050, 66% of the global population will live in urban areas (Nations 2019). According to Dimoudia & Tompa (2008) structure accounts for 59.57–66.73% of the total embodied energy of some buildings.

This research will develop parametric integrated approaches to define and assess structural systems in mid-rise buildings [50-200m], optimise regarding the structural and environmental performance, considering their digital fabrication, with buildings considered as materials stock. This research implements various contributions for a global environmental assessment to design mid-rise structures: LCA method, parametric modelling, interactive assessment, interfacing pre-processing data of CNC systems. The Life-Cycle Assessment (LCA) is used for building since the 80s; the most known being the Global Warming Potential, or carbon footprint (Bruce-Hyrkäs, Pasanen & Castro, 2018); Digital fabrication is currently bridging design and production with CNC fabrication (Putro & Wirasmoyo, 2019). The combined Sustainable Structural Design (SSD) will be adapted, integrating the Belgian TOTEM database.