Op 10 juli 2018 vond op Boerderij De Diek’n te Zeerijp in opdracht van Kenniscentrum Biobased Economy (KCBBE) van de Hanzehogeschool Groningen een schetsatelier plaats. Het atelier, dat onder leiding stond van landschapsarchitect Wim Boetze, was een pilot, beoogd om uitvoering te geven aan het Europese Interreg programma North Sea Periscope1. Hierin maken zes Noordzeelanden (Denemarken, Duitsland, Nederland, Noorwegen, Verenigd Koninkrijk en Zweden) een start voor een permanent innovatieplatform voor nieuwe duurzame ondernemersontwikkelingen (business opportunities) binnen de Noordzeeregio’s. Dit verslag is het product wat hieruit voort kwam.
Op 10 juli 2018 vond op Boerderij De Diek’n te Zeerijp in opdracht van Kenniscentrum Biobased Economy (KCBBE) van de Hanzehogeschool Groningen een schetsatelier plaats. Het atelier, dat onder leiding stond van landschapsarchitect Wim Boetze, was een pilot, beoogd om uitvoering te geven aan het Europese Interreg programma North Sea Periscope1. Hierin maken zes Noordzeelanden (Denemarken, Duitsland, Nederland, Noorwegen, Verenigd Koninkrijk en Zweden) een start voor een permanent innovatieplatform voor nieuwe duurzame ondernemersontwikkelingen (business opportunities) binnen de Noordzeeregio’s. Dit verslag is het product wat hieruit voort kwam.
In de periode september 2019 tot april 2020 heeft HanzePro SOFE in opdracht van de provincie Groningen een verkenning uitgevoerd naar de restauratiebranche in de provincie Groningen. De thema’s onderwijs, arbeidsmarkt en innovaties stonden daarbij centraal. Het doel van de verkenning was om te komen tot een gedragen beeld van de huidige situatie en wat vervolgens nodig is om de restauratiebranche in de provincie Groningen toekomstbestendig te maken. Op 13 juli 2020 is het rapport van de verkenning door HanzePro opgeleverd.Het doel van dit verdiepend onderzoek is om in beeld te brengen wat voor de onderdelen Erfgoedlab en Kennisdatabase nodig is om deze initiatieven succesvol te realiseren.
Post-earthquake structural damage shows that wall collapse is one of the most common failure mechanisms in unreinforced masonry buildings. It is expected to be a critical issue also in Groningen, located in the northern part of the Netherlands, where human-induced seismicity has become an uprising problem in recent years. The majority of the existing buildings in that area are composed of unreinforced masonry; they were not designed to withstand earthquakes since the area has never been affected by tectonic earthquakes. They are characterised by vulnerable structural elements such as slender walls, large openings and cavity walls. Hence, the assessment of unreinforced masonry buildings in the Groningen province has become of high relevance. The abovementioned issue motivates engineering companies in the region to research seismic assessments of the existing structures. One of the biggest challenges is to be able to monitor structures during events in order to provide a quick post-earthquake assessment hence to obtain progressive damage on structures. The research published in the literature shows that crack detection can be a very powerful tool as an assessment technique. In order to ensure an adequate measurement, state-of-art technologies can be used for crack detection, such as special sensors or deep learning techniques for pixel-level crack segmentation on masonry surfaces. In this project, a new experiment will be run on an in-plane test setup to systematically propagate cracks to be able to detect cracks by new crack detection tools, namely digital crack sensor and vision-based crack detection. The validated product of the experiment will be tested on the monument of Fraeylemaborg.
The structure will be monitored real-time and reasons behind the damages will be found. Proposals for protecting the structure against earthquakes will be made. - Damage scenario of the building, in relation to the induced seismicity effects on structures in the region- Establishment of a real-time structural monitoring toolThe building will be instrumented with accelerometers and displacement crack sensors. Additionally to the monitoring efforts, the structure will also be modelled in FE computer simulations in an effort trying to find out possible future response of the monument to strong earthquakes. The monitoring data will be combined with FE simulations in concluding the response of the structure to recursive induced seismic events.
This top-up project is related to the on-going RAAK MKB-project SafeGo (Seismic Monitoring, Design And Strengthening For thE GrOningen Region) . SafeGo combines knowledge of SMEs in the earthquake region of Groningen with innovative solutions and demonstration of technologies, to improve the process of seismic strengthening of houses. Innovative methods and approaches for monitoring and strengthening of structures are tested and further developed in SafeGo In the monitoring part of the project, SafeGo combines soil data, structural data and the sensor data to reach conclusions for the reasons behind observed damages in buildings. Fraeylemaborg, a castle-museum in Slochteren dating back to the 14th century, is used as a testbed. Various sensors are used for monitoring accelerations, tilt and water pressure. In the strengthening part of the project, masonry walls were built and strengthened by the participating SMEs. These walls are placed on the shake table and tested with real earthquake vibrations. A shake table is an accurate laboratory equipment which simulates earthquakes. Majority of the tasks in SafeGo are related either to the site or to the laboratory, which are environments outside of the school. Although an intensive student participation was initially planned, this was not achieved due to COVID19 crisis and the series of mobility restrictions, neither in the monitoring nor in the shake table testing parts of the project. This top-up project aims to transfer the knowledge and create interaction with the students for the SafeGo project. Visitation to the monitored building and presentations to the students on the monitoring system, visitations to the shake table laboratory and interactive events are planned within this project.
