[Zurück]

M. Honic, I. Kovacic:
"Model and Data Management Issues in Integrated Assessment of Existing Building Stocks";
Vortrag: 14th International Conference Organization, Technology and Management in Construction (OTMC 2019) + 7th International Project Management Association Research Conference (IPMA 2019), Zagreb, Kroatien (eingeladen); 04.09.2019 - 07.09.2019; in: "Trust in Major & Mega Projects", I. Zavrski, A. Ceric, M. Vukomanovic, M. Huemann, D. Ronggui (Hrg.); (2019), ISBN: 978-953-7686-08-6; S. 474 - 486.

Building stocks and infrastructures are the largest material stock of industrial economies. These total material stocks on the global scale are about as large as reserves of primary resources in nature. Simultaneously, buildings consume worldwide 35% of energy and produce about 40% of global CO2 emissions. Due to worldwide rapidly increasing consumption of resources and land, as well as growing generation of waste, increasing of recycling rates and reuse of materials, next to reduction of energy consumption is of highest priority for achievement of sustainability.
This paper presents ongoing research within multidisciplinary research project SCI_BIM, based on coupling of digital technologies and methods for scanning and modelling (as-built BIM) of buildings. Thereby the laser scanning and photogrammetry is used for the capturing of geometry, and GPR radar technology for assessing of material composition of the occupied existing building as a use case. The algorithms for semi-automatic generation of Scan to BIM process for obtaining information-rich as-built BIM from a Point-Cloud (geometry and material) will be developed and in further steps used for energy modelling and analysis, as well as for the automated compilation of material passports. Finally, using gamification concept through user-participation, the reduction of energy consumption together with automated update of as built-BIM will be tested. The focus of this paper is analysis of the complex interdisciplinary interactions, data and model exchange processes of various disciplines collaborating within SCI_BIM workflows.
Results show, that the developed methodology, which is accompanied by a cost-benefit analysis, is confronted with many challenges. Nevertheless, it has the potential to serve as basis for the creation of a secondary raw materials cadaster as well as for optimization of energy consumption in existing buildings.

discipline models; data exchange; as-built BIM; Material Passports; energy optimization