Strabag - BIMpact, ZUBLIN and partners want to optimise the energy efficiency of buildings with IoT-based automation and BIM

Strabag - BIMpact, ZUBLIN and partners want to optimise the energy efficiency of buildings with IoT-based automation and BIM.

The combination of cloud-based building automation and Building Information Modelling (BIM) in an integrated system is intended to optimise the energy efficiency of a building over its entire life cycle. This is the goal of the development work in the three-year research project BIMpact (1 August 2021 - 31 July 2024), which Ed. Zublin AG is leading and coordinating. ZUBLIN and its three project partners are working to develop an integrated process for building automation that for the first time combines IoT (Internet of Things) communication, wireless digital building control from the cloud and Building Information Modelling (BIM). The R&D project is funded by Germany's Federal Ministry of Economic Affairs and Climate Action with EUR 2.74 million from funds out of the 7th Energy Research Programme. ZUBLIN's partners in BIMpact are the University of Stuttgart (Institute for Building Energetics, Thermotechnology and Energy Storage - IGTE) and the technology companies SmartMakers GmbH (IoT solutions) and aedifion GmbH (cloud platforms).

IoT communication via building-wide LoRaWAN

In the project, the building services engineering (heating/cooling, ventilation, shading) must be comprehensively and continuously integrated into the BIM model right from the start. The goal is that all building functions, with all information relevant for later operation, can be called up and revised in the digital model already in the design and construction phase. A special focus in the joint project is on the safety and stability of the overall system and its controllability by the end users. The components, which are controlled using sensors and actuators, are to be networked wirelessly via a state-of-the-art low-power wide-area network (LPWAN) in a stable, secure and long-term manner. To make the deployment and management of the LoRaWAN devices as simple as possible, SmartMakers will develop a BIM-compatible device monitoring system. The operating data collected in this way will then converge in the cloud-based building control system to be developed by aedifion, where it will be analysed and processed by artificial intelligence (AI). The functionality of the system is to be demonstrated on one floor of the ZUBLIN building Z3 in Stuttgart (as a demonstrator) at the end of the project.

Significant resource savings expected

By linking innovative building technologies in a new overall process, the BIMpact partners expect significant progress in the sustainable use of resources, with savings expected in the consumption of energy, time and materials. The wireless and cloud-based building automation developed in the project should not only be usable for new buildings, but also enable the simple and cost-effective retrofitting of existing properties. In this way, BIMpact is intended to provide incentives for energy-efficient building renovation and thus support the European Union's long-term renovation strategy (LTRS).

Stuttgart-based Ed. Zublin AG, with more than 13,000 employees and an annual output of around EUR 4 billion, is one of Germany's largest construction companies. Since its foundation in 1898, ZUBLIN has been successfully realising challenging construction projects in Germany and abroad and today is the STRABAG Group's leading brand for building construction and civil engineering. The company's range of services covers all construction-related tasks - from complex turnkey construction, civil engineering and tunnelling to construction logistics, structural maintenance, ground engineering and timber or steel construction. In recent years, ZUBLIN has been promoting the topics of digitalisation, LEAN.Construction and sustainability and - supported by the many years of experience of its Zentrale Technik competence centre - is also increasingly offering integrated design and construction from a single source as a general planner. When it comes to partnering, ZUBLIN has set new standards with its teamconcept partnering model, which has proven its worth on the market for more than 25 years. Current construction projects of the company, a subsidiary of globally operating STRABAG SE, include the EDGE East Side Berlin high-rise project, the Rinsdorf and Ralsbach viaducts on the A45 motorway and the Boyneburg Tunnel on the A44. More information is available at www.zueblin.de.

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