@inproceedings{PaulRodehorst, author = {Paul, Debus and Rodehorst, Volker}, title = {Multi-Scale Flight Path Planning for UAS Building Inspection}, series = {Proceedings of the 18th International Conference on Computing in Civil and Building Engineering}, volume = {2020}, booktitle = {Proceedings of the 18th International Conference on Computing in Civil and Building Engineering}, editor = {Santos, Toledo}, publisher = {Springer}, doi = {10.25643/bauhaus-universitaet.4205}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20201009-42053}, pages = {19}, abstract = {Unmanned aircraft systems (UAS) show large potential for the construction industry. Their use in condition assessment has increased significantly, due to technological and computational progress. UAS play a crucial role in developing a digital maintenance strategy for infrastructure, saving cost and effort, while increasing safety and reliability. Part of that strategy are automated visual UAS inspections of the building's condition. The resulting images can automatically be analyzed to identify and localize damages to the structure that have to be monitored. Further interest in parts of a structure can arise from events like accidents or collisions. Areas of low interest exist, where low resolution monitoring is sufficient. From different requirements for resolution, different levels of detail can be derived. They require special image acquisition parameters that differ mainly in the distance between camera and structure. Areas with a higher level of detail require a smaller distance to the object, producing more images. This work proposes a multi-scale flight path planning procedure, enabling higher resolution requirements for areas of special interest, while reducing the number of required images to a minimum. Careful selection of the camera positions maintains the complete coverage of the structure, while achieving the required resolution in all areas. The result is an efficient UAS inspection, reducing effort for the maintenance of infrastructure.}, subject = {Drohne}, language = {en} } @inproceedings{RinsdorfBuschow, author = {Rinsdorf, Lars and Buschow, Christopher}, title = {Validit{\"a}t durch Agilit{\"a}t: Methodische Implikationen einerpraxistheoretisch fundierten Medieninnovationsforschung}, series = {Innovation in der Medienproduktion und -distribution - Proceedings der Jahrestagung der Fachgruppe Medien{\"o}konomie der DGPUK 2019, K{\"o}ln}, booktitle = {Innovation in der Medienproduktion und -distribution - Proceedings der Jahrestagung der Fachgruppe Medien{\"o}konomie der DGPUK 2019, K{\"o}ln}, editor = {Wellbrock, Christian and Zabel, Christian}, publisher = {SSOAR - Social Science Open Access Repository}, address = {Stuttgart}, organization = {Deutsche Gesellschaft f{\"u}r Publizistik- und Kommunikationswissenschaft e.V.}, doi = {10.25643/bauhaus-universitaet.4187}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20200630-41874}, pages = {15}, abstract = {Das Innovationsmanagement von Medienorganisationen unterliegt derzeit erheblichen Ver{\"a}nderungen: Im ver{\"a}nderten Marktumfeld erweisen sich Flexibilit{\"a}t, schnelle Richtungswechsel und Anpassungsf{\"a}higkeit als zentral. Darauf muss auch die Medienmanagement-Forschung reagieren: Um die Agilit{\"a}t der gegenw{\"a}rtigen Unternehmenspraxis valide zu erforschen, ist eine ebenso agile, adaptive Forschung gefordert. Zu diesem Zweck schl{\"a}gt der Beitrag eine praxistheoretische Perspektive auf das Innovationsmanagement von Medienorganisationen vor. Empirische Forschungsdesigns, die aus einem solchen Zugriff resultieren, werden sowohl hinsichtlich ihrer methodischen Herausforderungen als auch ihres Forschungsprojektmanagements diskutiert. Der Beitrag greift außerdem neue M{\"o}glichkeitsr{\"a}ume des wissenschaftlichen Publizierens, des Universit{\"a}tsmanagements sowie der Forschungsorganisation auf, die praxistheoretisch gegr{\"u}ndete, empirische Innovationsforschung in der Medienwirtschaft einfordert.}, subject = {Medien{\"o}konomie}, language = {de} } @inproceedings{DokhanchiArnoldVogeletal., author = {Dokhanchi, Najmeh Sadat and Arnold, J{\"o}rg and Vogel, Albert and V{\"o}lker, Conrad}, title = {Acoustic Travel-Time Tomography: Optimal Positioning of Transceiver and Maximal Sound-Ray Coverage of the Room}, series = {Fortschritte der Akustik - DAGA 2019}, booktitle = {Fortschritte der Akustik - DAGA 2019}, doi = {10.25643/bauhaus-universitaet.3877}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190408-38778}, pages = {4}, abstract = {Acoustic travel-time tomography (ATOM) determines the distribution of the temperature in a propagation medium by measuring the travel-time of acoustic signals between transmitters and receivers. To employ ATOM for indoor climate measurements, the impulse responses have been measured in the climate chamber lab of the Bauhaus-University Weimar and compared with the theoretical results of its image source model (ISM). A challenging task is distinguishing the reflections of interest in the reflectogram when the sound rays have similar travel-times. This paper presents a numerical method to address this problem by finding optimal positions of transmitter and receiver, since they have a direct impact on the distribution of travel times. These optimal positions have the minimum number of simultaneous arrival time within a threshold level. Moreover, for the tomographic reconstruction, when some of the voxels remain empty of sound-rays, it leads to inaccurate determination of the air temperature within those voxels. Based on the presented numerical method, the number of empty tomographic voxels are minimized to ensure the best sound-ray coverage of the room. Subsequently, a spatial temperature distribution is estimated by simultaneous iterative reconstruction technique (SIRT). The experimental set-up in the climate chamber verifies the simulation results.}, subject = {Bauphysik}, language = {en} } @inproceedings{OPUS4-4304, title = {Second urbanHIST Conference. Interpreting 20th Century European Urbanism}, editor = {Abarkan, Abdellah and Bihlmaier, Helene and Gimeno S{\´a}nchez, Andrea and Blaga, Andreea}, address = {Karlskrona}, organization = {urbanHIST}, doi = {10.25643/bauhaus-universitaet.4304}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20201218-43046}, pages = {135}, abstract = {urbanHIST (2019). Second urbanHIST Conference. Interpreting 20th Century European Urbanism. Stockholm, 21-23 October 2019 Conference Booklet}, subject = {St{\"a}dtebau}, language = {en} } @inproceedings{SchirmerKleinerOsburg, author = {Schirmer, Ulrike and Kleiner, Florian and Osburg, Andrea}, title = {Objektive Oberfl{\"a}chenbewertung von (P)SCC-Sichtbeton mittels automatisierter Analyse von Bilddaten}, series = {Tagung Bauchemie der GDCH-Fachgruppe Bauchemie, 30. September - 2. Oktober 2019 in Aachen}, booktitle = {Tagung Bauchemie der GDCH-Fachgruppe Bauchemie, 30. September - 2. Oktober 2019 in Aachen}, publisher = {Gesellschaft Deutscher Chemiker}, isbn = {978-3-947197-13-2}, doi = {10.25643/bauhaus-universitaet.4510}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20211004-45104}, pages = {8}, abstract = {Sichtbeton ist aufgrund seiner Vielf{\"a}ltigkeit in der Formgebung eines der am meisten verbreiteten Gestaltungsmittel der modernen Architektur und optimal f{\"u}r neue Bauweisen sowie steigende Anforderungen an das Erscheinungsbild {\"o}ffentlicher Bauwerke geeignet. Die Herstellung qualitativ hochwertiger Sichtbetonoberfl{\"a}chen h{\"a}ngt im hohen Maße von den Wechselwirkungen zwischen Beton und Trennmittel, zwischen Trennmittel und Schalmaterial, sowie von der Applikationsart und -menge des Trennmittels ab. In Laborversuchen wurden diese Einfl{\"u}sse auf die Sichtbetonoberfl{\"a}chen eines polymermodifizierten selbstverdichtenden Betons (PSCC) im Vergleich zu einem herk{\"o}mmlichen selbstverdichtenden Beton (SCC) untersucht. Im Rahmen dieser Arbeiten wurde eine Methode zur Beurteilung der Sichtbetonqualit{\"a}t entwickelt, mit welcher Ausschlusskriterien, wie maximale Porosit{\"a}t und Gleichm{\"a}ßigkeit, objektiv und automatisiert bestimmt werden k{\"o}nnen. Ver{\"a}nderungen dieser Werte durch Witterungseinfl{\"u}sse ließen zudem erste R{\"u}ckschl{\"u}sse auf die Dauerhaftigkeit der Sichtbetonoberfl{\"a}chen zu.}, subject = {Sichtbeton}, language = {de} } @inproceedings{VilceanuAbrahamczykMorgenthal, author = {V{\^i}lceanu, Victor and Abrahamczyk, Lars and Morgenthal, Guido}, title = {Nonlinear Analysis of Structures: Wind Induced Vibrations}, doi = {10.25643/bauhaus-universitaet.4033}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191122-40337}, pages = {183}, abstract = {The proceedings at hand are the result of the International Master Course Module: "Nonlinear Analysis of Structures: Wind Induced Vibrations" held at the Faculty of Civil Engineering at Bauhaus-University Weimar, Germany in the summer semester 2019 (April - August). This material summarizes the results of the project work done throughout the semester, provides an overview of the topic, as well as impressions from the accompanying programme. Wind Engineering is a particular field of Civil Engineering that evaluates the resistance of structures caused by wind loads. Bridges, high-rise buildings, chimneys and telecommunication towers might be susceptible to wind vibrations due to their increased flexibility, therefore a special design is carried for this aspect. Advancement in technology and scientific studies permit us doing research at small scale for more accurate analyses. Therefore scaled models of real structures are built and tested for various construction scenarios. These models are placed in wind tunnels where experiments are conducted to determine parameters such as: critical wind speeds for bridge decks, static wind coefficients and forces for buildings or bridges. The objective of the course was to offer insight to the students into the assessment of long-span cable-supported bridges and high-rise buildings under wind excitation. The participating students worked in interdisciplinary teams to increase their knowledge in the understanding and influences on the behaviour of wind-sensitive structures.}, subject = {Ingenieurbau}, language = {en} } @inproceedings{AbrahamczykSchwarz, author = {Abrahamczyk, Lars and Schwarz, Jochen}, title = {Forecast Engineering: From Past Design to Future Decision 2017}, doi = {10.25643/bauhaus-universitaet.4034}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191122-40344}, pages = {221}, abstract = {The design of engineering structures takes place today and in the past on the basis of static calculations. The consideration of uncertainties in the model quality becomes more and more important with the development of new construction methods and design requirements. In addition to the traditional forced-based approaches, experiences and observations about the deformation behavior of components and the overall structure under different exposure conditions allow the introduction of novel detection and evaluation criteria. The proceedings at hand are the result from the Bauhaus Summer School Course: Forecast Engineering held at the Bauhaus-Universit{\"a}t Weimar, 2017. It summarizes the results of the conducted project work, provides the abstracts of the contributions by the participants, as well as impressions from the accompanying programme and organized cultural activities. The special character of this course is in the combination of basic disciplines of structural engineering with applied research projects in the areas of steel and reinforced concrete structures, earthquake and wind engineering as well as informatics and linking them to mathematical methods and modern tools of visualization. Its innovative character results from the ambitious engineering tasks and advanced modeling demands.}, subject = {Proceedings}, language = {en} } @inproceedings{AbrahamczykSchwarz, author = {Abrahamczyk, Lars and Schwarz, Jochen}, title = {Forecast Engineering: From Past Design to Future Decision 2018}, doi = {10.25643/bauhaus-universitaet.4036}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20191126-40364}, pages = {112}, abstract = {Institute of Structural Engineering, Institute of Structural Mechanics, as well as Institute for Computing, Mathematics and Physics in Civil Engineering at the faculty of civil engineering at the Bauhaus-Universit{\"a}t Weimar presented special topics of structural engineering to highlight the broad spectrum of civil engineering in the field of modeling and simulation. The summer course sought to impart knowledge and to combine research with a practical context, through a challenging and demanding series of lectures, seminars and project work. Participating students were enabled to deal with advanced methods and its practical application. The extraordinary format of the interdisciplinary summer school offers the opportunity to study advanced developments of numerical methods and sophisticated modelling techniques in different disciplines of civil engineering for foreign and domestic students, which go far beyond traditional graduate courses. The proceedings at hand are the result from the Bauhaus Summer School course: Forecast Engineering held at the Bauhaus-Universit{\"a}t Weimar, 2018. It summarizes the results of the conducted project work, provides the abstracts/papers of the contributions by the participants, as well as impressions from the accompanying programme and organized cultural activities.}, subject = {Proceedings}, language = {en} } @inproceedings{OPUS4-3785, title = {30. Forum Bauinformatik}, editor = {Steiner, Maria and Theiler, Michael and Mirboland, Mahsa}, organization = {Bauhaus-Universit{\"a}t Weimar}, doi = {10.25643/bauhaus-universitaet}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20180917-37854}, pages = {424}, abstract = {Die Bauhaus-Universit{\"a}t Weimar ist seit langer Zeit mit dem Forum Bauinformatik eng verbunden. So wurde die Veranstaltung 1989 hier durch den Arbeitskreis Bauinformatik ins Leben gerufen und auch das 10. und 18. Forum Bauinformatik (1998 bzw. 2006) fand in Weimar statt. In diesem Jahr freuen wir uns daher besonders, das 30. Jubil{\"a}um an der Bauhaus-Universit{\"a}t Weimar ausrichten zu d{\"u}rfen und viele interessierte Wissenschaftler und Wissenschaftlerinnen aus dem Bereich der Bauinformatik in Weimar willkommen zu heißen. Das Forum Bauinformatik hat sich l{\"a}ngst zu einem festen Bestandteil der Bauinformatik im deutschsprachigen Raum entwickelt. Dabei steht es traditionsgem{\"a}ß unter dem Motto „von jungen Forschenden f{\"u}r junge Forschende", wodurch insbesondere Nachwuchswissenschaftlerinnen und ‑wissenschaftlern die M{\"o}glichkeit geboten wird, ihre Forschungsarbeiten zu pr{\"a}sentieren, Problemstellungen fachspezifisch zu diskutieren und sich {\"u}ber den neuesten Stand der Forschung zu informieren. Zudem wird eine ausgezeichnete Gelegenheit geboten, in die wissenschaftliche Gemeinschaft im Bereich der Bauinformatik einzusteigen und Kontakte mit anderen Forschenden zu kn{\"u}pfen. In diesem Jahr erhielten wir 49 interessante und qualitativ hochwertige Beitr{\"a}ge vor allem in den Themenbereichen Simulation, Modellierung, Informationsverwaltung, Geoinformatik, Structural Health Monitoring, Visualisierung, Verkehrssimulation und Optimierung. Daf{\"u}r m{\"o}chten wir uns ganz besonders bei allen Autoren, Co-Autoren und Reviewern bedanken, die durch ihr Engagement das diesj{\"a}hrige Forum Bauinformatik erst m{\"o}glich gemacht haben. Wir danken zudem Professor Große und Professor D{\´i}az f{\"u}r die Unterst{\"u}tzung bei der Auswahl der Beitr{\"a}ge f{\"u}r die Best Paper Awards. Ein herzliches Dankesch{\"o}n geht an die Kollegen an der Professur Informatik im Bauwesen der Bauhaus-Universit{\"a}t Weimar f{\"u}r die organisatorische, technische und beratende Unterst{\"u}tzung w{\"a}hrend der Planung der Veranstaltung.}, subject = {Bauinformatik}, language = {de} } @inproceedings{SirtlKraus, author = {Sirtl, Christin and Kraus, Matthias}, title = {Bonding Quality of Joined Glass Components Exposed to UV and Fluidic Influences}, publisher = {Ernst \& Sohn Verlag f{\"u}r Architektur und technische Wissenschaften GmbH \& Co. KG}, address = {Berlin}, isbn = {978-3-433-03269-5}, doi = {10.25643/bauhaus-universitaet.3914}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20190514-39144}, pages = {10}, abstract = {Components of structural glazing have to meet different requirements and resist various impacts, depending on the field of application. Within an international research project of the EU innovation program Horizon 2020, special glass panes with a fluid circulating in capillaries are developed exploiting solar energy. Major influences to this glazing are UV irradiation and the fluidic contact, effecting the mechanical and optical durability of the bonding material within the glass setup. Regarding to visual requirements, acrylate adhesives and EVA films are analyzed as possible bonding materials by destructive and non-destructive testing methods. Two types of specimen are presented for obtaining the mechanical behavior and the surface appearances of the bonding material.}, subject = {Alterung}, language = {en} }