Sigrid Brell-Cokcan

Sigrid Brell-Cokcan
RWTH Aachen University · Chair for Individualized Production in Architecture

Professor

About

66
Publications
23,132
Reads
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535
Citations
Citations since 2017
38 Research Items
429 Citations
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2017201820192020202120222023020406080
2017201820192020202120222023020406080

Publications

Publications (66)
Chapter
A significant amount of every euro spent in Germany is invested in construction activity. Construction comprises one of Germany’s largest economic endeavors, but receives limited attention in the public perception of the German economy, as it is usually a regional field of business built by small and medium-sized enterprises. Few other domains affe...
Article
Full-text available
Ground Penetrating Radar (GPR) plays an important role among the non-destructive methods used to analyze, measure and collect data from pavement layers, building structures and archaeological sites. A GPR device consists of a radar able to get an image, technically called radargram, of the subsurface. Due to the decreasing costs of calculation powe...
Article
Um bei der Verwendung von Ortbeton die hohen Qualitätssicherungsstandards zu erfüllen, ist bisweilen ein großer manueller Dokumentationsaufwand erforderlich. Insbesondere der Einbau bedarf großer Aufmerksamkeit, da die Verwendung des richtigen Betons im vorgesehenen Bauteil sichergestellt werden muss und Fehler einen zeitlichen und kostenmäßigen Me...
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The Reference Construction Site Aachen West, located in Aachen, Germany, is a campus-based living lab for research and university education in construction. To ensure and improve the education quality, this paper researches a new study tool in the form of a digital twin framework powered by the Unreal Engine. By implementing MQTT, an IoT communicat...
Article
The German Federal Ministry of Education and Research (BMBF)-funded research “Internet of Construction” (IoC) explores the digitalization and interconnection of construction processes throughout the value chain. It addresses the implementation of robotic processes and Industry 4.0 technologies within a broad consortium of industry partners. The con...
Chapter
Jeder zweite Euro in Deutschland wird in Bautätigkeiten investiert. Das Bauen gehört daher zu Deutschlands größten Wirtschaftsfaktoren, findet jedoch in der öffentlichen Wahrnehmung zur deutschen Wirtschaft kaum Beachtung, da es meist ein regional abgegrenztes Geschäftsfeld von klein- und mittelständischen Betrieben darstellt. Keine andere Domäne b...
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Easily-accessible and reliable data communication in construction processes ensures high building quality, efficient workflow and secure working environments. The setup of network infrastructure on construction sites provides the necessary condition for timely and effective data communication. This paper researches a solution for on-site networking...
Article
Easily-accessible and reliable data communication in construction processes ensures high building quality, efficient workflow and secure working environments. The setup of network infrastructure on construction sites provides the necessary condition for timely and effective data communication. This paper researches a solution for on-site networking...
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Despite the continuous development of the hardware, most construction machines are exclusively teleoperated limiting the control to a single paradigm. The operators usually have to move different joints of the machine in a coordinated way solely relied on their experiences leading to reduced local accuracy and work efficiency. Automation of constru...
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Data acquisition and transfer are crucial aspects of the digitization and automation of construction workflows. Through the integration of microcontrollers in machinery, a multitude of data can be acquired and analyzed to adapt fabrication processes and optimize performance. The goal of this research was to develop connected multi-functional roboti...
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Additive manufacturing enables industries with a new production typology. For the metal manufacturing industry, this new means of production extends the spectrum of achievable building parts that can be fabricated and integrated into architectural designs. Consequently, this process is becoming increasingly relevant for construction industries. The...
Conference Paper
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The impact of the architect's design on the acoustics of the environment is obvious. It becomes more specific when talking about room acoustics, building acoustics or soundscapes. However, the architecture pedagogic programs devote very little time to the study of acoustics. This work presents the results of an introduction course to research in ar...
Chapter
Full-text available
A central part of a robot programming system is its user interface. Oftentimes, its design and development are neglected, although the user interface is the connection between the robot and the user. In this work we present the application of a user-centered design process to a robot programming system interface. The iterative process consists of t...
Chapter
Despite enormous research advances in robotics, most of repetitive and dangerous tasks on construction sites are still manually performed. The challenge to robotic automation lies in the nature of construction site. Robots must be able to handle large payloads, outdoor conditions, dirty and dynamic environment. Therefore, attempting to develop a ne...
Conference Paper
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Promising results in efficiently producing highly complex non-standard designs have been accomplished by integrating robotic fabrication with parametric design. However, the project workflow is hampered due to the disconnect between designer and robotic fabricator. The design is most often developed by the designer independently from fabrication pr...
Chapter
- Architects and designers have always aspired to move beyond the state-of-the-art to create individual, customized objects rather than to mass-produce. Today, innovative machines enable creative minds to finally turn many ideas into reality: Robotic technologies such as CNC-milling and 3-D printing have become increasingly accessible to architects...
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Robot assisted construction processes in the architectural domain which include assembly are uncommon due the size difference of the robot with respect the scale of the output. In order to extend the workspace of industrial robots, these can be mounted on top of a mobile platform. However industrial mobile robotics currently focuses on the utilizat...
Chapter
Dieses Kapitel beschreibt Automation und Digitalisierung im Stahlbau, Digitalisierung und Automatisierung, Informationsmanagement in der Bauproduktion, Aktuelle Programmierparadigmen im Kontext der Bauanwendung und Mensch‐Roboter‐Interaktion und ‐Kollaboration. Industrie 4.0 wird auch als vierte industrielle Revolution bezeichnet, wobei die umfasse...
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The digitization of the construction industry integrates innovations in design and fabrication to achieve increased efficiency and performance. This paper details the development of a process for optimizing and automating the design and production of branching steel structures including the use of robotic construction, evolutionary optimization of...
Chapter
Current industrial robotics focuses on the utilization within clearly defined and structured production environments. However due to increasing product variety, a paradigm shift away from repetition of static task towards dynamic human-robot collaboration is noticeable. Due to the fact that static automation can only be achieved at a prefabrication...
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Full-text available
Industrial robotics currently focuses on the utilization within clearly defined production environments. A paradigm shift away from repetition of static tasks towards dynamic human–robot collaboration is noticeable, specifically due to developments triggered by Industry 4.0 concepts. Within construction industries static automation can only be achi...
Article
The present study deals with the development and characterisation of ultra-lightweight foamed concrete (ULFC) that can be automatically sprayed onto bare walls to allow for sustainable facade refurbishments with a smaller workload and extended design possibilities. Since heat insulation and wall adhesion increase with reduced density, the objective...
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Throughout history, waves of industrial revolutions have disrupted established manufacturing methodologies. Traditional construction processes have been transformed by new means of creating objects and computing information. The manufacturing of steel is no exception to this trend. Past methods for the creation of steel included hot forming (castin...
Article
In the course of frequently altering energy saving regulations, numerous buildings have to be comprehensively refurbished to meet the rising energy-efficiency standards in order to protect the global environment and to save resources. However, available materials as well as adaptable design concepts for additional energy-saving insulation layers ar...
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With decreasing energy demand, the ecological impact related to the building fabric becomes more relevant and climate goals can only be reached when considering both. In the last decades, political regulation and standards were released to promote the reduced consumption of primary resources. Architects and planners approached this topic with diffe...
Conference Paper
The goal of Building Information Modeling (BIM) is the integral and comprehensive digital modeling of all properties regarding a building, its planning and construction process as well as maintenance and use. This is combined with the overarching objective within BIM to integrate and support all involved experts aiming towards an improved collabora...
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The past years have seen major changes in society that have modified the requirements of residential architecture. To meet the new standards while preserving existing built resources, the building stock has to be generally reorganized. Resulting changes to buildings’ layout and structure in turn necessitate changes to the building envelope e.g. mod...
Conference Paper
The programming of industrial robots is commonly static and optimized for a clearly defined surrounding. Service robotics on the other hand focuses on working in dynamic and completely unknown environments. Within construction, robotics needs to be able to adapt within dynamic and unstructured environments. However a lot of information is already a...
Chapter
In this paper we illustrate the feasibility of using control moment gyroscopes (CMGs) for the stabilization of free swinging robots hanging from single tendons. Such systems may provide robotic workspaces of unprecedented size, especially in the vertical. Taking typical base reaction forces of industrial robots we show that control moment gyroscope...
Conference Paper
Full-text available
The goal of Building Information Modelling (BIM) is the integral overarching digital modelling of all properties regarding a building as well as its construction. This is targeted through the integration and support of all involved experts. Due to the interdisciplinary nature of this task, the necessary data often only exists in a very fragmented a...
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These days, we are constantly expecting more from the performance of the building envelope with regard to both comfort and ecological compatibility. Operational energy has been undergoing significant improvement, which in turn draws attention to the building matter: If a standard building does not consume energy in its operation, then it is the bui...
Article
de Die Baubranche ist aufgrund zunehmender volatiler Märkte und steigender Anforderungen besonderen Wandlungsanforderungen ausgesetzt. Dies betrifft auch den Stahlbau. Wenn über Forschung und Entwicklung gesprochen wird, dann dürfen neben innovativen Bauprodukten und modernen Bemessungskonzepten Fertigung und Montage nicht vergessen werden. Insbeso...
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A variety of robot programming techniques exists ranging from constraint based over skill based programming to learning by demonstration. In order to extend their applicability propose to join some of these approaches. We therefore combine visual CAD based programming with skill based programming through demonstration. This constitutes the basis of...
Article
The formability and geometrical accuracy in incremental sheet forming can be increased using a force-controlled support tool. The main problems in using such a kinematic support tool is the positioning of forming and support tools, while maintaining force magnitude and alignment. A new tool for this was developed systematically using a morphologica...
Conference Paper
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Recently, efficiency in the building fabrication process and on construction sites in terms of energy consumption, sustainability and reuse has become more and more important in the discussion of the building life-cycle and the construction site of the future. In this paper, different approaches for the development of automated refurbishment and en...
Conference Paper
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Damit die Baustelle der Zukunft die Sicherheit und Gesundheit der Beschäftigten am Arbeitsplatz verbessert, auf den demographischen Wandel und dem Fachkräftemangel reagiert und den Bedarf des Marktes und die Wünsche an individuell formangepassten Bauteilen niedriger Losgröße erfüllt, werden technologische Entwicklungen und der Paradigmenwechsel weg...
Chapter
The industry-crises of the past have made it clear how existentially important it is to have flexible, “living” production facilities. Automation by means of industrial robotics has proven to be a key technology in this regard. However, truly dynamic processes can only be achieved when the robots and the environment to be automated—machines, handli...
Chapter
Traditional artistic stone processing techniques offer vast possibilities for finishing stone products. However, stone processing is physically highly demanding work requiring stamina as well as skill. This makes products expensive to produce and the detailed design only accessible for skilled masons as an efficient communication between designers...
Article
Im Gegensatz zu neuesten Materialentwicklungen oder den Fortschritten der Gebäudeentwicklung in Hinblick auf Energieeffizienz und Bauphysik hinkt die Baustelle in der Umsetzung dem möglichen Produktionsfortschritt aus der Vorfertigung hinterher. Gebaut wird nach wie vor wie vor hundert Jahren. Ob dies kulturell bedingt ist oder der fehlende technol...
Article
In the creative industry, architects and designers have to realize complex, prototypical projects without the profit margins or the economy of scale of other industries. One of the core enablers of such processes are fluid and efficient workflows that allow a maximum of flexibility throughout the design process. However, rather than fully automatin...
Article
For a long time, robotic arms have been a common sight in many industries. Now, robots are rapidly entering architectural education. Within the past few years, more than 20 architectural faculties throughout the world have set up experimental labs with one or more robotic arms. This paper will discuss the use of robots in education beyond the scope...
Book
Architects, artists, and designers have been fascinated by robots for many decades, from Villemard’s utopian vision of an architect building a house with robotic labor in 1910, to the design of buildings that are robots themselves, such as Archigram’s Walking City. Today, they are again approaching the topic of robotic fabrication but this time emp...
Article
The development of digital and physical tools is highly dependent on interfaces, which define the terms of interaction both between humans and machines, as well as between machines and other machines. This research explores how new, advanced human machine interfaces, that are built upon concepts established by entertainment electronics can enhance...
Article
Just recently Flank Milling has opened up new possibilities in detailing large-scale architectural building envelopes. Whereas examples such as the Hungerburgbahn by Zaha Hadid show the application of Flank Milling at the end of the architectural manufacturing process, our research, in contrast, focuses on the implementation of constraints immanent...
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Full-text available
Geometric problems originating in architecture can lead to interesting research and results in geometry processing, computer aided geometric design, and discrete differential geometry. In this ar- ticle we survey this development and consider an important problem of this kind: Discrete surfaces (meshes) which admit a multi-layered geometric support...

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Projects

Projects (4)
Project
Information networks for cross-company collaboration in the production chains of construction industry http://www.internet-of-construction.com
Project
Die additive Fertigung durch geschichtete Betonextrusion ist ein verbreiteter Ansatz, um komplexe Bauteile robotergesteuert herzustellen. Dabei weist ultrahochfester Beton (UHPC) ein immenses Potential für die Leistungsfähigkeit des Prozesses auf. Durch hohe Tragfähigkeiten bei schlankeren Strukturen und geringem Füllgrad kann Material eingespart, der Bahnpfad verkürzt, die Druckgeschwindigkeit erhöht, zusätzliche Bewehrung vermieden und das Eigengewicht der Bauteile reduziert werden. Der Einsatz von UHPC in der additiven Fertigung ist aufgrund der Materialeigenschaften und der anspruchsvollen Verarbeitung jedoch derzeit nicht möglich.
Project
Within the project we take a look at information flow over the complete lifecycle of a building, in order to obtain first approaches towards bridging the gap between planning and construction.