Refine
Year of publication
- 2023 (23) (remove)
Document Type
- Article (8)
- Master's Thesis (6)
- Bachelor Thesis (5)
- Part of a Book (1)
- Conference Proceeding (1)
- Doctoral Thesis (1)
- Report (1)
Keywords
- 3D urban planning (1)
- 3D-Druck (1)
- Agile administration (1)
- Berechnungsverfahren (1)
- Buchenfurnierschichtholz (1)
- Building with earth (1)
- CDE (1)
- Capital project performance (1)
- Circular economy (1)
- Climate action (1)
- Climate change (2)
- Climate communication (1)
- Climate policies and strategies (1)
- Climate resilience (1)
- Common Data Environment (1)
- Compressed earth (1)
- Construction industry (1)
- Cost-benefit analysis (1)
- DGNB Version 2023 (1)
- DIN 4149 (1)
- DIN EN 1998-1 (1)
- Data analytics (1)
- Data cooperatives (1)
- Data sharing and exchange (1)
- Data sovereignty (1)
- Decarbonisation (1)
- Demolition wastes (1)
- Digital platforms (1)
- Digital transformation (2)
- EU-Taxonomie (1)
- Effizienzsteigerung (1)
- Energy transition (1)
- Erdbebennorm (1)
- Financial sustainability (1)
- Freistellungssemesterbericht (1)
- GIS (1)
- Geotechnik im Hochbau (1)
- Grasshopper (1)
- Green bridge (1)
- Greening campus (1)
- Higher education (1)
- Information Exchange (1)
- Interoperability (1)
- Kleinwasserkraft (1)
- Kleinwindkraftanlage (1)
- Klimaresiliente Stadtentwicklung (1)
- Klimasimulationen (1)
- Künstliche Intelligenz (1)
- Land value capture (1)
- Lehm (1)
- Low-carbon construction (1)
- MCDA (1)
- Minea Design (1)
- Moderner Lehmbau (1)
- NA 2021-07 (1)
- Principles of Blockchain Technology (1)
- Productivity (1)
- Public engagement (1)
- Radolfzeller Aach (1)
- Rammed earth (1)
- Recycled materials (1)
- Remote sensing (1)
- Research (1)
- Road Infrastructure Projects (1)
- Stampflehmherstellung (1)
- Sustainable construction (1)
- Sustainable development (1)
- Sustainable infrastructure (1)
- Teaching (1)
- Umrechnungsfaktor (1)
- Urban adaptation to global climate change (1)
- Value networks (1)
- Wasserkraft (1)
- zirkuläre und automatisierte Bauweisen (1)
Institute
- Fakultät Bauingenieurwesen (23) (remove)
Der einst vorherrschende Baustoff in Deutschland war Lehm. Dieser wurde durch die erste industrielle Revolution weitgehend verdrängt und durch industrialisierte Baustoffe wie Beton ersetzt. Mit der vierten industriellen Revolution und dem steigenden Bewusstsein der Auswirkungen der Ressourcenverschwendung und Abfallproduktion auf die Umwelt, soll der traditionelle Lehmbau durch Digitalisierung und Automatisierung wieder an ökonomischem Aufschwung gewinnen. Bauen mit Lehm bietet die Chance einer systematischen Transformation der Bauindustrie in Richtung Kohlenstoffneutralität. Bisher ist die Bauindustrie für mehr als 30 % der weltweiten Treibhausgasemissionen verantwortlich. Durch die Verwendung regionaler, zirkulärer Materialien, die idealerweise aus der eigenen Baugrube gewonnen werden, könnte sich dies in Zukunft ändern. Lehm kommt in nahezu allen Teilen der Welt flächendeckend und zur Genüge vor und kann mit verschiedenen regional vorhandenen Additiven ergänzt werden. Durch Standardisierung der Produkte und technologischen Fortschritt könnte der Lehmbau in eine Massenproduktion überführt werden und in Zukunft mit dem konventionellen Stahlbetonbau oder Holzbau konkurrieren.
Diese Masterarbeit konzentriert sich auf die Modernisierung von Lehmbauweisen in Form von digitalisierten und automatisierten additiven Fertigungsverfahren wie der Stampflehmbau oder das 3D-Drucken mit Lehm für Wandbauteile. Ziel der Masterthesis ist es, einen Bauablauf für eines der genannten additiven Fertigungsverfahren zu entwickeln. Um dieses Ziel zu erreichen, werden die verschiedenen Fertigungsverfahren und Arten nach Stand der Technik miteinander verglichen und sich für das am besten bewertete entschieden. Als praktische Grundlage für die Wahl des Fertigungsverfahren dienen beispielhafte Untersuchungen mit einem Lehm 3D-Drucker. Dabei werden Prüfkörper mit und ohne Additive gedruckt sowie Prüfkörper mit unterschiedlichen Füllgraden erstellt und anschließend im Labor auf ihre Druckfestigkeit geprüft.
Die folgende Arbeit zeigt die vielen Potenziale des Lehmbaus als zirkuläre und moderne Bauweise auf und beleuchtet zugleich die Herausforderungen, die es noch zu lösen gilt.
Gegenstand der hier vorgestellten Arbeit ist ein Überblick über die Unterschiede zwischen der aktuell in Baden-Württemberg bauaufsichtlich gültigen Erdbebennorm DIN 4149 und der DIN EN 1998-1/NA 2021-07, die Sie künftig ersetzen soll und bereits dem aktuellen Stand der Technik entspricht. Es wird darauf eingegangen, welche Umstände hinter dem Umstieg auf die Europäische Norm und die Neuauflegung des Nationalen Anhangs stehen und ein Faktor ausgearbeitet, mit dem beide Normen direkt verglichen werden können. Zudem werden gängige Berechnungsverfahren zur Ermittlung von Erdbebenbeanspruchungen vorgestellt und anhand des Berechnungsprogramms Minea Design die Unterschiede zwischen vereinfachter 2D-Berechnung und 3D-Berechnung mit finiten Elementen untersucht. Daraus wird eine Aussage darüber abgeleitet, welches der Berechnungsverfahren auf der „sicheren Seite“ liegt und wie sich die Ergebnisse verifizieren lassen. An einem realen Projekt werden diese Erkenntnisse in Form einer Erdbebenbemessung angewandt.
In spite of the amount of new tools and methodologies adopted in the road infrastructure sector, the performance of road infrastructure projects is not constantly improving. Considering that the volume of projects undertaken is forecasted to increase every year, this is a substantial issue for the road infrastructure sector. Hence this work focuses on the principles of Blockchain Technology, road infrastructure sector and the information exchange with the aim to use the advantages of the Blockchain Technology in supporting to overcome the various challenges along the life cycle of road infrastructure projects.
Within the scope of this paper, two studies were conducted. First, focus groups were used to explore where society (road infrastructure sector) stands in terms of industry 4.0 and to get a better understanding if and where the principles of Blockchain Technology can be used when managing projects in the road infrastructure sector. Second, semi-structured interviews were administrated with experts of the road infrastructure sector and experts of Blockchain Technology to better understand the interrelation between these two areas. Based on the outcome of the two studies, technology barriers and enablers were explored for the purpose of improved information exchange within the road infrastructure sector.
The two studies revealed that there are significant and strong interrelations between the principles of the Blockchain Technology, project management within the road infrastructure sector and information exchange. These interrelations are complex and diverse, but overall it can be concluded that the adoption of the principles of Blockchain Technology into the field of information exchange improves the management of road infrastructure projects. Based on the two studies a theoretical framework was developed.
In summary this research showed that trust is an important factor and builds the foundation for communication and to ensure a proper information exchange. Within the scope of this thesis, it was demonstrated that the principles of the Blockchain Technology can be used to increase transparency, traceability and immutability during the life cycle of road infrastructure projects in the area of information exchange.
Increasing demand for sustainable, resilient, and low-carbon construction materials has highlighted the potential of Compacted Mineral Mixtures (CMMs), which are formulated from various soil types (sand, silt, clay) and recycled mineral waste. This paper presents a comprehensive inter- and transdisciplinary research concept that aims to industrialise and scale up the adoption of CMM-based construction materials and methods, thereby accelerating the construction industry’s systemic transition towards carbon neutrality. By drawing upon the latest advances in soil mechanics, rheology, and automation, we propose the development of a robust material properties database to inform the design and application of CMM-based materials, taking into account their complex, time-dependent behaviour. Advanced soil mechanical tests would be utilised to ensure optimal performance under various loading and ageing conditions. This research has also recognised the importance of context-specific strategies for CMM adoption. We have explored the implications and limitations of implementing the proposed framework in developing countries, particularly where resources may be constrained. We aim to shed light on socio-economic and regulatory aspects that could influence the adoption of these sustainable construction methods. The proposed concept explores how the automated production of CMM-based wall elements can become a fast, competitive, emission-free, and recyclable alternative to traditional masonry and concrete construction techniques. We advocate for the integration of open-source digital platform technologies to enhance data accessibility, processing, and knowledge acquisition; to boost confidence in CMM-based technologies; and to catalyse their widespread adoption. We believe that the transformative potential of this research necessitates a blend of basic and applied investigation using a comprehensive, holistic, and transfer-oriented methodology. Thus, this paper serves to highlight the viability and multiple benefits of CMMs in construction, emphasising their pivotal role in advancing sustainable development and resilience in the built environment.
Multi-faceted stresses of social, environmental, and economic nature are increasingly challenging the existence and sustainability of our societies. Cities in particular are disproportionately threatened by global issues such as climate change, urbanization, population growth, air pollution, etc. In addition, urban space is often too limited to effectively develop sustainable, nature-based solutions while accommodating growing populations. This research aims to provide new methodologies by proposing lightweight green bridges in inner-city areas as an effective land value capture mechanism. Geometry analysis was performed using geospatial and remote sensing data to provide geometrically feasible locations of green bridges. A multi-criteria decision analysis was applied to identify suitable locations for green bridges investigating Central European urban centers with a focus on German cities as representative examples. A cost-benefit analysis was performed to assess the economic feasibility using a case study. The results of the geometry analysis identified 3249 locations that were geometrically feasible to implement a green bridge in German cities. The sample locations from the geometry analysis were proved to be validated for their implementation potential. Multi-criteria decision analysis was used to select 287 sites that fall under the highest suitable class based on several criteria. The cost-benefit analysis of the case study showed that the market value of the property alone can easily outweigh the capital and maintenance costs of a green bridge, while the indirect (monetary) benefits of the green space continue to increase the overall value of the green bridge property including its neighborhood over time. Hence, we strongly recommend light green bridges as financially sustainable and nature-based solutions in cities worldwide.
Purpose
In order to combat climate change and safeguard a liveable future we need fundamental and rapid social change. Climate communication can play an important role to nurture the public engagement needed for this change, and higher education for sustainability can learn from climate communication.
Approach
The scientific evidence base on climate communication for effective public engagement is summarised into ten key principles, including ‘basing communication on people’s values’, ‘conscious use of framing’, and ‘turning concern into action’. Based on the author’s perspective and experience in the university context, implications are explored for sustainability in higher education.
Findings
The article provides suggestions for teaching (e.g. complement information with consistent behaviour by the lecturer, integrate local stories, and provide students with basic skills to communicate climate effectively), for research (e.g. make teaching for effective engagement the subject of applied research), for universities’ third mission to contribute to sustainable development
in the society (e.g. provide climate communication trainings to empower local stakeholders), andgreening the campus (develop a proper engagement infrastructure, e.g. by a university storytelling exchange on climate action).
Originality
The article provides an up-to-date overview of climate communication research, which is in itself original. This evidence base holds interesting learnings for institutions of higher education, and the link between climate communication and universities has so far not been explored comprehensively.
Cities around the world are facing the implications of a changing climate as an increasingly pressing issue. The negative effects of climate change are already being felt today. Therefore, adaptation to these changes is a mission that every city must master. Leading practices worldwide demonstrate various urban efforts on climate change adaptation (CCA) which are already underway. Above all, the integration of climate data, remote sensing, and in situ data is key to a successful and measurable adaptation strategy. Furthermore, these data can act as a timely decision support tool for municipalities to develop an adaptation strategy, decide which actions to prioritize, and gain the necessary buy-in from local policymakers. The implementation of agile data workflows can facilitate the integration of climate data into climate-resilient urban planning. Due to local specificities, (supra)national, regional, and municipal policies and (by) laws, as well as geographic and related climatic differences worldwide, there is no single path to climate-resilient urban planning. Agile data workflows can support interdepartmental collaboration and, therefore, need to be integrated into existing management processes and government structures. Agile management, which has its origins in software development, can be a way to break down traditional management practices, such as static waterfall models and sluggish stage-gate processes, and enable an increased level of flexibility and agility required when urgent. This paper presents the findings of an empirical case study conducted in cooperation with the City of Constance in southern Germany, which is pursuing a transdisciplinary and trans-sectoral co-development approach to make management processes more agile in the context of climate change adaptation. The aim is to present a possible way of integrating climate data into CCA planning by changing the management approach and implementing a toolbox for low-threshold access to climate data. The city administration, in collaboration with the University of Applied Sciences Constance, the Climate Service Center Germany (GERICS), and the University of Stuttgart, developed a co-creative and participatory project, CoKLIMAx, with the objective of integrating climate data into administrative processes in the form of a toolbox. One key element of CoKLIMAx is the involvement of the population, the city administration, and political decision-makers through targeted communication and regular feedback loops among all involved departments and stakeholder groups. Based on the results of a survey of 72 administrative staff members and a literature review on agile management in municipalities and city administrations, recommendations on a workflow and communication structure for cross-departmental strategies for resilient urban planning in the City of Constance were developed.