@incollection{Obergriesser, author = {Obergrießer, Mathias}, title = {Digitalisierung - Wahrheit, Probleme und Prognosen}, series = {Beton und Bytes: Wie Bauen das Fundament f{\"u}r unsere Zukunft schafft}, booktitle = {Beton und Bytes: Wie Bauen das Fundament f{\"u}r unsere Zukunft schafft}, editor = {Waldherr, Gerhard}, publisher = {Redline-Verl.}, address = {M{\"u}nchen}, isbn = {978-3-86881-825-3}, pages = {103 -- 116}, language = {de} } @article{JiBorrmannBeetzetal., author = {Ji, Yang and Borrmann, Andr{\´e} and Beetz, Jakob and Obergrießer, Mathias}, title = {Exchange of Parametric Bridge Models Using a Neutral Data Format}, series = {Journal of Computing in Civil Engineering}, volume = {27}, journal = {Journal of Computing in Civil Engineering}, number = {6}, publisher = {American Society of Civil Engineers}, address = {Reston, VA}, doi = {10.1061/(asce)cp.1943-5487.0000286}, pages = {593 -- 606}, abstract = {Parametric modeling is a well-established methodology in the field of mechanical engineering. It allows for the creation of flexible geometric models using parameters for dimensions and makes it possible to define numeric relationships between these parameters by means of mathematical formulas and define geometric-topological constraints between geometric entities. The result is a flexible geometric model that can be steered through the manipulation of its primary parameters. In contrast to explicit geometric models with fixed dimensions, a parametric model can capture the design intent and represent domain knowledge. The use of parametric modeling techniques is particularly beneficial for designing bridges. This is because the geometric design of bridges is mainly determined by external constraints resulting from the size and the layout of both the overlying and the undercrossing carriageway. This reduces the effort required for reworking when changes are made, while simultaneously providing a high degree of reusability for the model in other, similar projects, resulting in significantly increased efficiency in the bridge design process. Because of the strong fragmentation of the architecture, engineering, and construction (AEC) industry, the data exchange between the different participants in a construction project is of crucial importance. The use of neutral, open data formats has proved to be the most suitable approach to realize this data exchange. However, currently existing neutral data formats do not allow for an exchange of parametric geometry. To overcome these technical limitations, this paper introduces an extension to the IFC-Bridge format, thus providing a means of interchanging parametric bridge models. This article describes in detail the necessary entities introduced to define parameters and capture dimensional and geometric constraints. The suitability of the developed extensions is proved by presenting the successful transfer of parametric bridge models between two parametric design systems as well as from a design system to a structural analysis system.}, language = {en} } @article{BorrmannSchorrObergriesseretal., author = {Borrmann, Andr{\´e} and Schorr, Markus and Obergrießer, Mathias and Ji, Yang and Wu, I-Chen and G{\"u}nthner, Willibald A. and Euringer, Thomas and Rank, Ernst}, title = {Using product data management systems for civil engineering projects - Potentials and obstacles}, series = {Computing in civil engineering : proceedings of the 2009 ASCE International Workshop on Computing in Civil Engineering ; June 24 - 27, 2009, Austin, Texas}, volume = {346}, journal = {Computing in civil engineering : proceedings of the 2009 ASCE International Workshop on Computing in Civil Engineering ; June 24 - 27, 2009, Austin, Texas}, editor = {Caldas, Carlos H. and O'Brien, William J.}, publisher = {ASCE}, pages = {359 -- 369}, language = {en} } @article{KrausLammelObergriesser, author = {Kraus, Michael A. and Lammel, Laura and Obergrießer, Mathias}, title = {Digitale Transformation und K{\"u}nstliche Intelligenz - Herausforderungen und L{\"o}sungsans{\"a}tze bei der Kombination von Theorie und Praxis}, series = {Ingenieurbaukunst ... made in Germany}, journal = {Ingenieurbaukunst ... made in Germany}, publisher = {Ernst \& Sohn}, address = {Berlin}, organization = {Bundesingenieurkammer (Deutschland)}, isbn = {978-3-433-03359-3}, pages = {168 -- 173}, language = {de} } @incollection{KrausObergriesser, author = {Kraus, Michael A. and Obergrießer, Mathias}, title = {Digitale Transformation im Bauwesen - Grundlagen zur k{\"u}nstlichen Intelligenz und deren Anwendung im Wohnungsbau}, series = {Mauerwerk-Kalender 2023: Instandsetzung, Erdbeben, Lehmbau}, volume = {48}, booktitle = {Mauerwerk-Kalender 2023: Instandsetzung, Erdbeben, Lehmbau}, editor = {Brehm, Detleff and Schermer, Eric}, publisher = {Ernst \& Sohn, a Wiley Brand}, address = {Berlin}, isbn = {978-3-433-03374-6}, doi = {10.1002/9783433611142.ch12}, pages = {275 -- 308}, abstract = {Dieser Beitrag f{\"u}hrt die im Mauerwerk-Kalender 2022 begonnene Reihe zur digitalen Transformation der Planung im Bauwesen weiter. Dazu werden mit Hinblick auf die Anwendung im Wohnungsbau zun{\"a}chst relevante Grundlagen der digitalen Transformation des Bauwesens in Abschnitt~2 sowie k{\"u}nstlicher Intelligenz (KI), maschinelles und tiefes Lernen in Abschnitt~3 eingef{\"u}hrt. Insbesondere verfolgt Abschnitt~3 zur KI die Erzielung eines begriff‌lichen und semantischen Verst{\"a}ndnisses verschiedener KI-Algorithmen, Modelle und f{\"u}r das Arbeiten mit Daten, insbesondere f{\"u}r die in Abschnitt~4 und~5 betrachteten Anwendungsbeispiele und Zukunftspotenziale im Wohnungsbau. In Abschnitt~4 werden Anwendungen von KI in den Lebenszyklusphasen eines Immobilienprojekts anhand von Beispielen aufgezeigt. Dabei werden Beispiele zum generativen Design von Wohnungsgrundrissen in fr{\"u}hen Planungsphasen, die Unterst{\"u}tzung von statischen Berechnungen mit KI, der Einsatz von KI im Zuge der Bauausf{\"u}hrung sowie im Betrieb einer Immobilie detaillierter betrachtet. Abgeschlossen wird dieser Beitrag mit einem Ausblick, welcher die Gesamtheit der dargestellten Inhalte betrachtet und bewertet, sodass ein Ableiten von Schlussfolgerungen, Implikationen und Empfehlungen f{\"u}r Forschung und Baupraxis bzgl. der digitalen Transformation und des Einsatzes von KI m{\"o}glich wird.}, language = {de} } @article{HoengEderKrausetal., author = {H{\"o}ng, Simon and Eder, Friedrich and Kraus, Michael A. and Obergrießer, Mathias}, title = {Entwicklung einer synthetischen Datenpipeline zum dom{\"a}nen-spezifischen Lernens eines neuronalen Netzes im Bauwesen [in progress]}, series = {Bauingenieur}, volume = {98}, journal = {Bauingenieur}, publisher = {VDI-Fachmedien}, address = {D{\"u}sseldorf}, issn = {1436-4867}, language = {de} } @inproceedings{EderEuringerObergriesser, author = {Eder, Friedrich and Euringer, Thomas and Obergrießer, Mathias}, title = {Ansatz zur automatisierten Ableitung eines objektorientierten BIM-Modells in eine relationelle Datenbank}, series = {31. Forum Bauinformatik: 11. bis 13. September 2019 in Berlin, proceedings}, booktitle = {31. Forum Bauinformatik: 11. bis 13. September 2019 in Berlin, proceedings}, editor = {Sternal, Maximilian and Ungureanu, Lucian-Constantin and B{\"o}ger, Laura and Bindal-Gutsche, Christoph}, publisher = {Universit{\"a}tsverlag der TU Berlin}, address = {Berlin}, isbn = {978-3-7983-3105-1}, doi = {10.14279/depositonce-8763}, pages = {133 -- 139}, language = {de} } @incollection{ObergriesserKraus, author = {Obergrießer, Mathias and Kraus, Michael A.}, title = {Digitale Transformation im Bauwesen - Von der Theorie zur Anwendung}, series = {Mauerwerk-Kalender 2022: Fassadengestaltung, Bauphysik, Innovationen}, volume = {47}, booktitle = {Mauerwerk-Kalender 2022: Fassadengestaltung, Bauphysik, Innovationen}, editor = {Schermer, Detleff and Brehm, Eric}, publisher = {Ernst \& Sohn}, address = {Berlin}, isbn = {978-3-433-03356-2}, doi = {10.1002/9783433611029.ch16}, pages = {499 -- 519}, abstract = {Dieser Beitrag f{\"u}hrt zun{\"a}chst in die digitale Transformation (DT) des Bauwesens und deren wesentliche Methoden wie BIM, digitaler Zwilling etc. ein. Zur Erzielung eines begriff‌lichen und semantischen Verst{\"a}ndnisses werden die Definitionen zudem an Anwendungsbeispielen veranschaulicht. Neben den Gr{\"u}nden f{\"u}r die DT werden der Status quo sowie der Weg vom analogen Planen und Bauen zur Vision „Planen und Bauen~4.0" dargestellt. Kernelemente sind verschiedene Ansatzpunkte, Entscheidungshilfen und Schl{\"u}sse zur Begegnung der technischen und adaptiven Herausforderungen der DT auf Unternehmer‑, aber auch Hochschulniveau. Insbesondere der Faktor Mensch und dessen humane wie technische Kollaborations- und Vernetzungsf{\"a}higkeit wird in diesem Beitrag Rechnung getragen. Abschließend wird neben einer Zusammenfassung der dargestellten Inhalte zudem ein Ausblick f{\"u}r die DT im Bauwesen bis hin zum Einsatz von Robotik und KI f{\"u}r den im n{\"a}chsten Jahr erscheinenden zweiten Teil dieses Beitrags gegeben.}, language = {de} } @book{Obergriesser, author = {Obergrießer, Mathias}, title = {Digitale Werkzeuge zur integrierten Infrastrukturbauwerksplanung: Am Beispiel des Schienen- und Straßenbaus}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, isbn = {978-3-658-16782-0}, doi = {10.1007/978-3-658-16782-0}, abstract = {Der Autor entwickelt neue digitale Werkzeuge und Methoden, die eine durchg{\"a}ngige und integrierte Planung einer Infrastrukturmaßnahme anhand eines f{\"o}derierten Modells erm{\"o}glichen. Dabei werden verschiedene L{\"o}sungsans{\"a}tze vorgestellt, die eine Erweiterung der traditionellen Planungsprozesse vorsehen. Mathias Obergrießer fasst diese Methoden und digitalen Werkzeuge zu einem leistungsf{\"a}higen Modellierungsleitfaden zusammen, der eine effektive Planung des parametrisch-assoziativen Infrastrukturinformationsmodells erlaubt. Die erfolgreiche Validierung des Leitfadens erfolgt anhand verschiedener Anwendungsbeispiele aus der Praxis. Der Inhalt Einf{\"u}hrung eines modellgest{\"u}tzten Planungsprozesses im Infrastrukturbau Beschreibung geometrischer und parametrisch-assoziativer Modellierungsans{\"a}tze Definition eines infrastruktur-spezifischen Modellierungsleitfadens Konzepte zur Umsetzung des parametrisch-assoziativen Infrastrukturinformationsmodells Die Zielgruppen Dozierende und Studierende des Bauingenieurwesens Praktiker und Praktikerinnen in Ingenieurb{\"u}ros Der Autor Mathias Obergrießer ist seit 2008 an der Hochschule Regensburg als Lehrbeauftragter t{\"a}tig. Seine Forschungsschwerpunkte liegen im Bereich der parametrisch-assoziativen 3D-Infrastrukturinformationsmodellierung sowie in der Integration von geotechnischen Planungsprozessen. Seit 2014 ist er hauptverantwortlicher Tragwerksplaner f{\"u}r Infrastrukturbauwerke im einem deutschen Ingenieurb{\"u}ro.}, language = {de} } @inproceedings{EuringerObergriesserBorrmannetal., author = {Euringer, Thomas and Obergrießer, Mathias and Borrmann, Andr{\´e} and Rank, Ernst}, title = {Integration of geotechnical design and analysis processes using a parametric and 3D-model based approach}, series = {International Workshop on Computing in Civil Engineering, 19.-22.06.2011, Miami, Florida, USA}, booktitle = {International Workshop on Computing in Civil Engineering, 19.-22.06.2011, Miami, Florida, USA}, publisher = {American Society of Civil Engineers}, doi = {10.1061/41182(416)53}, pages = {430 -- 437}, abstract = {The aim of this work is to improve the integration between the geotechnical and infrastructural designing, modeling and analyzing processes. Up to now these three planning stages are executed isolated and without the required data exchange between each other. This separation leads to time-consuming and expensive manual re-input of geometric and semantic data. Currently, roads are designed using the traditional approach which is based on various 2D drawings. The current design process focuses on the roadway itself, additional geotechnical conditions such as the slope angle of the dam or the position of a retaining wall are not considered. To solve these problems, a new parametric and 3D-model based approach has been developed in the research project ForBAU — The virtual construction site. This new approach is based on the traditional 2D infrastructure planning process, but includes a new parameterized 3D modeling concept. Different open data formats such as LandXML and GroundXML allow data integration with both, a parametric Computer Aided Design (CAD) system and a geotechnical engineering software. An automatic update function ensures data flow without loss of information. Usage of this new approach will accelerate the infrastructure design and provide a parametric 3D-model approach to close the gap between the geotechnical and the infrastructure planning process. This paper provides detailed information about this new integration concept and gives an overview on the various implementation steps.}, language = {en} } @inproceedings{EuringerObergriesserJietal., author = {Euringer, Thomas and Obergrießer, Mathias and Ji, Yang and Baumg{\"a}rtel, T. and Borrmann, Andr{\´e} and Rank, Ernst}, title = {GroundXML: An addition of aligmnent and subsoil specific cross-sectional data to the LandXML scheme}, series = {Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing, Funchal, Madeira, Portugal, 1-4 September 2009}, booktitle = {Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing, Funchal, Madeira, Portugal, 1-4 September 2009}, editor = {Topping, B. H. V. and Costa Neves, L. F. and Baros, R. C.}, publisher = {Civil-Comp Press}, address = {Stirlingshire, UK}, isbn = {9781905088300}, language = {en} } @inproceedings{SchmailzlSpitzhirnEderetal., author = {Schmailzl, Marc and Spitzhirn, M. and Eder, Friedrich and Kr{\"u}ll, Georg and Obergrießer, Mathias and Linner, Thomas and Albalkhy, Wassim and Lafhaj, Zoubeir}, title = {Towards interfacing human centered design processes with the AEC industry by leveraging BIM-based planning methodologies}, series = {40th International Symposium on Automation and Robotics in Construction (ISARC 2023): Chennai, India, July 3-9, 2023}, booktitle = {40th International Symposium on Automation and Robotics in Construction (ISARC 2023): Chennai, India, July 3-9, 2023}, publisher = {I.A.A.R.C.}, isbn = {978-0-6458322-0-4}, issn = {2413-5844}, doi = {10.22260/ISARC2023/0045}, pages = {325 -- 332}, abstract = {Digital workflows in the Architecture, Engineering and Construction (AEC) industry have been working with a wide range of software solutions trying to enable a Design-to-Production (DtP) end-to-end data flow. Thereby, state-of-the-art software solutions attempt to streamline the design and production processes accordingly. However, most digital workflows lack in terms of adequate sequential data preparation, agglomeration, and interfacing capabilities for consecutive design phases. These issues result in long, tedious correction loops, a wide range of software solutions and extensions to mitigate the issues. In addition, many digital workflows do not consider or integrate construction, production and machine relevant data holistically (respectively geometry and semantics). In this context, the production relevant data in from of human-centered work process data referring to digital human models (DHM), derived human abilities, safety and ergonomic criteria are often neglected. However, this is essential to interface the construction, human and machine relevant data in a holistic manner. This paper therefore proposes a DtP-workflow which is intended to solve some of the issues by interfacing relevant software solutions incorporating construction, production (including DHM and more) and machine relevant data in a holistic manner using a Building Information Modeling (BIM)-approach (based on the IFC schema). In this regard, the DtP-workflow aims to reverse common top-down digital workflows by considering and integrating the relevant data for consecutive design phases from the beginning. Subsequently, the DtP-workflow should achieve a reduction in planning effort.}, language = {en} } @inproceedings{JiBorrmannObergriesser, author = {Ji, Yang and Borrmann, Andr{\´e} and Obergrießer, Mathias}, title = {Toward the exchange of parametric bridge models using a neutral data format}, series = {Computing in Civil Engineering 2011, Proceedings of the 2011 ASCE International workshop ORKSHOP on Computing in civil engineering, June 19-22, 2011, Miami, Florida}, booktitle = {Computing in Civil Engineering 2011, Proceedings of the 2011 ASCE International workshop ORKSHOP on Computing in civil engineering, June 19-22, 2011, Miami, Florida}, publisher = {American Society of Civil Engineers ASCE}, address = {Reston, VA}, doi = {10.1061/41182(416)65}, pages = {528 -- 535}, abstract = {While there are mature data models for exchanging semantically rich building models, no means for exchanging bridge models using a neutral data format exist so far. A major challenge lies in the fact that a bridge's geometry is often described in parametric terms, using geometric constraints and mathematical expressions to describe dependencies between different dimensions. Since the current draft of IFC-Bridge does not provide a parametric geometric description, this paper presents a possible extension and describes in detail the object-oriented data model proposed to capture parametric design including geometric and dimensional constraints. The feasibility of the concept has been verified by actually implementing the exchange of parametric models between two different computer-aided design (CAD) applications.}, language = {en} } @inproceedings{ObergriesserBorrmann, author = {Obergrießer, Mathias and Borrmann, Andre}, title = {Infrastructural BIM standards-development of an Information Delivery Manual for the geotechnical infrastructural design and analysis process}, series = {eWork and eBusiness in Architecture, Engineering and Construction - proceedings of the 9th European Conference on Product and Process Modelling 2012, Reykjavik, Iceland,25-27 July 2012}, booktitle = {eWork and eBusiness in Architecture, Engineering and Construction - proceedings of the 9th European Conference on Product and Process Modelling 2012, Reykjavik, Iceland,25-27 July 2012}, publisher = {Taylor \& Francis}, pages = {581 -- 587}, abstract = {Defining infrastructural BIM standards is an essential issue to successfully implement BIM in the civil engineering domain and to gain acceptance of engineers, software developers and executive users. For this reason the paper proposes a way to improve collaboration between the geomechanical infrastructural design and analysis process, by introducing an infrastructural Information Delivery Manual (IDM). To realize IDM, the traditional geomechanical infrastructural use case was defined and the process specific workflow (activities \& data exchange) was determined by developing an infrastructural process map. In order to ensure correct data exchange between the involved processes various Exchange Requirements (ER) were specified. But to the effect an infrastructural product model like IFC is still not available, the data exchange as well as the ER specification was made by different formats. At the end of this research activity the Model View Definition (MVD) was discussed.}, language = {en} } @article{SchorrBorrmannObergriesseretal., author = {Schorr, Markus and Borrmann, Andr{\´e} and Obergrießer, Mathias and Ji, Yang and G{\"u}nthner, Willibald A. and Rank, Ernst}, title = {Employing product data management systems in civil engineering projects: Functionality analysis and assessment}, series = {Journal of soft computing in civil engineering : SCCE}, volume = {25}, journal = {Journal of soft computing in civil engineering : SCCE}, number = {6}, publisher = {ASCE}, address = {New York, NY}, pages = {430 -- 441}, abstract = {Product Data Management (PDM) systems are well established in the manufacturing industry. Here, they form the standard solution for the central storage of all data relating to a product and the processes involved in its manufacture. Particularly the consistent management of CAD models, including sophisticated versioning techniques and access rights management as well as the integrated workflow management are attractive features for using PDM systems also for civil engineering projects. This paper investigates the technical concepts behind PDM systems and compares their suitability as a data management solution in civil engineering projects with that of Document Management Systems and Product Model Servers. Alongside a comparative study of the major PDM systems available on the market, we also present a case study involving a PDM system that has been employed for a concrete civil engineering project.}, language = {en} } @article{ThielStrasserObergriesseretal., author = {Thiel, Charlotte and Strasser, Juliane and Obergrießer, Mathias and Linner, Thomas}, title = {Strategien zur Implementierung der Kreislaufwirtschaft beim Bauen mit Beton}, series = {Beton- und Stahlbetonbau}, volume = {118}, journal = {Beton- und Stahlbetonbau}, publisher = {Ernst \& Sohn, a Wiley Brand}, address = {Berlin}, doi = {DOI: 10.1002/best.202200118}, abstract = {Beton ist das am meisten verwendete Baumaterial weltweit. CO2-Emissionen, die bei der Zement- und Betonherstellung an-fallen, m{\"u}ssen reduziert, Produktionsmethoden verbessert und Betonzusammensetzungen angepasst werden. Zudem steigt die Nachfrage nach Beton, w{\"a}hrend fossile Brennstoffreserven und die Verf{\"u}gbarkeit von mineralischen Rohstoffen abnehmen. Hinzu kommt, dass bei der Betonherstellung neue mineralogi-sche Phasen entstehen, was ein echtes Recycling erschwert. Die Implementierung kreislaufkonformer Strategien wie der Verl{\"a}ngerung der Nutzungsphase ist ein wichtiger Hebel, um Umweltwirkungen im Bauwesen zu reduzieren, und erfordert die ganzheitliche Betrachtung des Bauwerks. Besonders großes Potenzial liefern hier die digital vernetzte und modellba-sierte Planung sowie die darauf aufbauende robotergest{\"u}tzte Fertigung der Bauteile, mit der sich leicht l{\"o}sbare Verbindun-gen, einfach r{\"u}ckbaubare, multifunktionale, flexible sowie bzgl. Dauerhaftigkeit optimierte Strukturen {\"o}kologisch und kosten-effizient generieren lassen. Technisch w{\"a}ren bereits viele Pro-jekte in der Praxis umsetzbar, allerdings m{\"u}ssen hierzu die rechtlichen Rahmenbedingungen verbessert und b{\"u}rokratische H{\"u}rden abgebaut werden. Dieser Beitrag hat das Ziel, das Be-wusstsein f{\"u}r den n{\"o}tigen Wechsel von der Linear- zur Kreis-laufwirtschaft im Betonbau und den korrespondierenden Daten zu erh{\"o}hen und dem Planer einfache Grunds{\"a}tze f{\"u}r den Ent-wurf, die Ausschreibung und Umsetzung mitzugeben, um jetzt schon einen wichtigen Beitrag zum verantwortungsvollen Um-gang mit immer knapper werdenden Ressourcen zu leisten.}, language = {de} } @misc{Obergriesser, author = {Obergrießer, Mathias}, title = {Digitale Kompetenzen im Bauwesen: BIM, Lean und KI}, series = {VSVI-Bayern: Seminar BIM im Verkehrswegebau, 20.05.2025, Unterschleißheim}, journal = {VSVI-Bayern: Seminar BIM im Verkehrswegebau, 20.05.2025, Unterschleißheim}, language = {de} } @inproceedings{ThelenEderMelzeretal., author = {Thelen, Simon and Eder, Friedrich and Melzer, Matthias and Nunes, Danilo Weber and Stadler, Michael and Rechenauer, Christian and Obergrießer, Mathias and Jubeh, Ruben and Volbert, Klaus and D{\"u}nnweber, Jan}, title = {A Slim Digital Twin For A Smart City And Its Residents}, series = {SOICT '23: Proceedings of the 12th International Symposium on Information and Communication Technology, 2023, Hi Chi Minh, Vietnam}, booktitle = {SOICT '23: Proceedings of the 12th International Symposium on Information and Communication Technology, 2023, Hi Chi Minh, Vietnam}, publisher = {ACM}, isbn = {979-8-4007-0891-6}, doi = {10.1145/3628797.3628936}, pages = {8 -- 15}, abstract = {In the engineering domain, representing real-world objects using a body of data, called a digital twin, which is frequently updated by "live" measurements, has shown various advantages over tradi- tional modelling and simulation techniques. Consequently, urban planners have a strong interest in digital twin technology, since it provides them with a laboratory for experimenting with data before making far-reaching decisions. Realizing these decisions involves the work of professionals in the architecture, engineering and construction (AEC) domain who nowadays collaborate via the methodology of building information modeling (BIM). At the same time, the citizen plays an integral role both in the data acquisition phase, while also being a beneficiary of the improved resource management strategies. In this paper, we present a prototype for a "digital energy twin" platform we designed in cooperation with the city of Regensburg. We show how our extensible platform de- sign can satisfy the various requirements of multiple user groups through a series of data processing solutions and visualizations, in- dicating valuable design and implementation guidelines for future projects. In particular, we focus on two example use cases concern- ing building electricity monitoring and BIM. By implementing a flexible data processing architecture we can involve citizens in the data acquisition process, meeting the demands of modern users regarding maximum transparency in the handling of their data.}, language = {en} } @inproceedings{HoengEderSchmailzletal., author = {Hoeng, Simon Konrad and Eder, Friedrich and Schmailzl, Marc and Obergrießer, Mathias}, title = {Exploring the Potential of BIM Models for Deriving Synthetic Training Data for Machine Learning Applications, Montreal}, series = {Advances in Information Technology in Civil and Building Engineering, Proceedings of ICCCBE 2024, Volume 2, Simulation and Automation}, booktitle = {Advances in Information Technology in Civil and Building Engineering, Proceedings of ICCCBE 2024, Volume 2, Simulation and Automation}, publisher = {Springer Nature}, address = {Cham}, isbn = {9783031873638}, issn = {2366-2557}, doi = {10.1007/978-3-031-87364-5_5}, pages = {54 -- 63}, abstract = {To increase the efficiency and quality of design and construction tasks, the use of Artificial Intelligence (AI) and Machine Learning (ML) offers a way to automate both repetitive and complex tasks. Many of these ML models rely heavily on large amounts of suitable, machine-readable, and labeled training data. Therefore, a variety of conceivable use cases for ML in the Architecture, Engineering and Construction (AEC) industry are difficult to implement due to a lack of freely and directly usable training data. The process of manually structuring and labeling existing data is time-consuming and needs in some cases skilled personnel to ensure the quality of the labeled data. Due to these factors, approaches for utilizing artificially generated data, referred to as synthetic data, are becoming more prevalent. Since Building Information Models contain a large amount of information, deriving training data from these models presents an obvious route for generation of this data. There are many ML applications whose implementation is inhibited due to a lack of training data, for which model-based synthetic data offer a possible solution approach. The Industry Foundation Classes (IFC) standard provides a powerful exchange format for models independently of their authoring software. Parametric and generative approaches to model creation enable the generation of numerous different building models within a short period of time and with low effort. This paper presents a workflow for automated derivation of synthetic training data from rule-based or parametrically generated models combined with existing IFC datasets as a multimodal data repository. The method is validated by testing automated synthetically labeled image data for a plan detection task, which is carried out with the Object Detection Framework YOLOv8. The suggested workflow has the potential to enhance data accessibility, thereby contributing to the implementation of ML applications in the AEC industry.}, language = {en} } @inproceedings{EderHoengSchmailzletal., author = {Eder, Friedrich and Hoeng, Simon Konrad and Schmailzl, Marc and Linner, Thomas and Obergrießer, Mathias}, title = {Towards improving data interoperability for the reconstruction of existing buildings}, series = {The 20th conference of the International Society for Computing in Civil and Building Engineering (ICCCBE 2024), August 25 to 28, 2024, Montreal}, booktitle = {The 20th conference of the International Society for Computing in Civil and Building Engineering (ICCCBE 2024), August 25 to 28, 2024, Montreal}, abstract = {Digital representations of buildings are the supporting structures of various use-cases in the emerging field of data-driven decision making. From large scale applications in the context of city planning to the detailed evaluation of critical infrastructure they enable specialists to observe problems, interpret relationships, test solutions virtually and apply them in the real world. This is only feasible if the individual underlying digital model meets the requirements imposed by the analysis at hand. In practice, especially models of existing buildings are not easy to come by as the information describing the existing structure is often scattered across multiple different data sources in various formats. Previous research efforts have outlined methodologies which leverage machine learning, computer vision and subsequent semantic enrichment in order to achieve the (re)construction of such building models. However, these methods are generally not integrated with each other, nor do they consider being able to interface with a shared repository of building related data. In this paper we present a methodology which focuses on establishing a common context for all building related data by utilizing the Industry Foundation Classes (IFC) schema. In particular we focus on utilizing readily available geometric and semantic data originating from geographic information systems as a basis, subsequently referencing additional data sources in their corresponding context and finally outlining interfaces with downstream enrichment processes in both directions. Through incorporating contextualized (IFC) data into the early stages of the remodeling workflow, we outline an end-to-end process from the initial component-based data-acquisition to the as-built building information model. In establishing a standardized foundation for data exchange and collaboration it enables all stakeholders to work more seamlessly across different stages of the remodeling project.}, language = {en} } @inproceedings{SchmailzlSaffertKaramaraetal., author = {Schmailzl, Marc and Saffert, Anne-Sophie and Karamara, Merve and Linner, Thomas and Eder, Friedrich and Hoeng, Simon Konrad and Obergriesser, Mathias}, title = {Enhancing Decision-Making for Human-Centered Construction Robotics: A Methodological Framework}, series = {Proceedings of the 41st International Symposium on Automation and Robotics in Construction (ISARC), Lille, France}, booktitle = {Proceedings of the 41st International Symposium on Automation and Robotics in Construction (ISARC), Lille, France}, publisher = {International Association for Automation and Robotics in Construction (IAARC)}, isbn = {978-0-6458322-1-1}, issn = {2413-5844}, doi = {10.22260/ISARC2024/0083}, pages = {637 -- 644}, abstract = {While the Architecture, Engineering, and Construction (AEC) industry is increasingly aware of the rising demands for productivity and human-centered construction improvements, the holistic adoption of robotics as a fundamental strategy to address these challenges has not yet reached comprehensive fruition. This paper therefore introduces a methodological framework aiming to address the industry's pressing need for a systematic approach for assessing the feasibility of integrating robotics into human-centered construction processes. It aims to enhance decision-making regarding the degree of automation in human-centered construction processes, ranging from partial to full robotization or non-robotization. The framework is characterized by a more holistic end-to-end data-/workflow and therefore adopts a multifaceted approach, leveraging BIM-based planning methodologies and integrating new technologies [e.g., Motion Capturing (MoCap), work process simulation software incorporating Digital Human Models (DHM), self-developed conversion/interfacing software and more] that have not been widely used in the industry to date. Subsequently, the framework is evaluated in a real-life bricklaying construction process to ensure a more application-based approach. Overall, the framework advances current construction processes with a more inclusive and conscious technology infill to empower construction professionals with the workflow and corresponding tools necessary for the practical integration of robotics into human-centered construction processes.}, language = {en} } @inproceedings{SchmailzlSaffertKaramaraetal., author = {Schmailzl, Marc and Saffert, Anne-Sophie and Karamara, Merve and Linner, Thomas and Eder, Friedrich and Hoeng, Simon Konrad and Obergrießer, Mathias}, title = {Enhancing Decision-Making for Human-Centered Construction Robotics: A Methodological Framework}, series = {Proceedings of the 41st International Symposium on Automation and Robotics in Construction (ISARC 2024), 2024, Lille, France}, booktitle = {Proceedings of the 41st International Symposium on Automation and Robotics in Construction (ISARC 2024), 2024, Lille, France}, publisher = {IAARC}, isbn = {978-0-6458322-1-1}, doi = {10.22260/ISARC2024/0083}, pages = {637 -- 644}, abstract = {While the Architecture, Engineering, and Construction (AEC) industry is increasingly aware of the rising demands for productivity and human-centered construction improvements, the holistic adoption of robotics as a fundamental strategy to address these challenges has not yet reached comprehensive fruition. This paper therefore introduces a methodological framework aiming to address the industry's pressing need for a systematic approach for assessing the feasibility of integrating robotics into human-centered construction processes. It aims to enhance decision-making regarding the degree of automation in human-centered construction processes, ranging from partial to full robotization or non-robotization. The framework is characterized by a more holistic end-to-end data-/workflow and therefore adopts a multifaceted approach, leveraging BIM-based planning methodologies and integrating new technologies [e.g., Motion Capturing (MoCap), work process simulation software incorporating Digital Human Models (DHM), self-developed conversion/interfacing software and more] that have not been widely used in the industry to date. Subsequently, the framework is evaluated in a real-life bricklaying construction process to ensure a more application-based approach. Overall, the framework advances current construction processes with a more inclusive and conscious technology infill to empower construction professionals with the workflow and corresponding tools necessary for the practical integration of robotics into human-centered construction processes.}, language = {en} } @incollection{BiersackSchmailzlLinneretal., author = {Biersack, Stefan and Schmailzl, Marc and Linner, Thomas and Eder, Friedrich and Obergrießer, Mathias}, title = {Von der Handarbeit zur Hochtechnologie im Reallabor: Die M{\"o}glichkeit der BIM-basierten Planung und effizienten Produktion von Ziegelw{\"a}nden durch Roboter}, series = {Mauerwerk-Kalender 2025}, volume = {2025}, booktitle = {Mauerwerk-Kalender 2025}, editor = {Schermer, Detleff and Brehm, Eric}, edition = {1. Aufl}, publisher = {Ernst \& Sohn}, isbn = {978-3-433-03445-3}, doi = {10.1002/9783433612019.ch7}, subject = {Mauerwerk}, language = {de} } @inproceedings{HoengWiedererEderetal., author = {H{\"o}ng, Simon K. and Wiederer, Jonas and Eder, Friedrich and Obergriesser, Mathias and Linner, Thomas}, title = {Towards AI-enhanced facade planning : integrating human expertise with machine learning-driven parametric modeling}, series = {EC³ \& CIB W78 : 2025 European Conference on Computing in Construction \& 42nd CIB W78 IT in Construction Conference}, volume = {6}, booktitle = {EC³ \& CIB W78 : 2025 European Conference on Computing in Construction \& 42nd CIB W78 IT in Construction Conference}, publisher = {European Council for Computing in Construction}, isbn = {978-9-083451-31-2}, issn = {2684-1150}, doi = {10.35490/EC3.2025.320}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-84862}, pages = {192 -- 199}, abstract = {Planning modern facade systems is complex, requiring optimization across multiple domains.This paper proposes an AI-enhanced workflow for facade planning, harnessing computer vision and human input via a Large Language Model.A generative AI system then guides a parametric model to produce 3D facade designs. Automated checks provide feedback to a Reinforcement Learning system, to iteratively determine optimal solutions.These solutions are verified and finalized by human expertise, ensuring improved outcomes with reduce planning time and effort.The approach illustrates how combining advanced AI methods with human expertise can address the multifactorial challenges of facade design within current industry practices.}, language = {en} } @inproceedings{SaffertWiedererHoengetal., author = {Saffert, Anne-Sophie and Wiederer, Jonas and H{\"o}ng, Simon and Linner, Thomas and Obergrießer, Mathias and Neumann, Patrick}, title = {Towards AI-based optimization of human-centered and robot-assisted construction processes}, series = {Proceedings of the 42nd International Symposium on Automation and Robotics in Construction (ISARC), Montreal, Canada July 28-31, 2025}, booktitle = {Proceedings of the 42nd International Symposium on Automation and Robotics in Construction (ISARC), Montreal, Canada July 28-31, 2025}, publisher = {IAARC}, isbn = {978-0-6458322-2-8}, issn = {2413-5844}, doi = {10.22260/ISARC2025/0112}, pages = {861 -- 868}, abstract = {This research explores an innovative AI-driven approach to optimizing construction processes with a focus on humancentered design, addressing key challenges in the construction industry, such as skilled labor shortages and ergonomic risks associated withwork-related musculoskeletal disorders. By integrating process design with AI-based algorithms into simulation tools, various construction process layout variants including robot-assisted scenarios can be simulated and evaluated based on user-specific key performance indicators (e.g., ergonomic score, layouting parameters) to identify optimized solutions. A data processing algorithm automates the process, eliminating the need for manual simulation variations and resulting in increased operational productivity. The AI-based system evaluates and optimizes process layouts by adjusting control parameters. A case study on a brick laying process serves as an exemplary use case, highlighting the necessity and impact of adopting process optimization. The findings emphasize the transformative potential of automated process optimization within simulation environments to rethink existing construction practices, enhance worker well-being, and boost operational productivity.}, language = {en} }