@inproceedings{MilkovaButenwegDumovaJovanoska2021,
  author    = {Milkova, Kristina and Butenweg, Christoph and Dumova-Jovanoska, Elena},
  title     = {Region-sensitive comprehensive procedure for determination of seismic fragility curves},
  series = {1st Croatian Conference on Earthquake Engineering 1CroCEE 22-24 March 2021 Zagreb, Croatia},
  booktitle = {1st Croatian Conference on Earthquake Engineering 1CroCEE 22-24 March 2021 Zagreb, Croatia},
  publisher = {University of Zagreb},
  address   = {Zagreb},
  doi       = {10.5592/CO/1CroCEE.2021.158},
  pages     = {121 -- 128},
  year      = {2021},
  abstract  = {Seismic vulnerability estimation of existing structures is unquestionably interesting topic of high priority, particularly after earthquake events. Having in mind the vast number of old masonry buildings in North Macedonia serving as public institutions, it is evident that the structural assessment of these buildings is an issue of great importance. In this paper, a comprehensive methodology for the development of seismic fragility curves of existing masonry buildings is presented. A scenario - based method that incorporates the knowledge of the tectonic style of the considered region, the active fault characterization, the earth crust model and the historical seismicity (determined via the Neo Deterministic approach) is used for calculation of the necessary response spectra. The capacity of the investigated masonry buildings has been determined by using nonlinear static analysis. MINEA software (SDA Engineering) is used for verification of the structural safety of the structures Performance point, obtained from the intersection of the capacity of the building and the spectra used, is selected as a response parameter. The thresholds of the spectral displacement are obtained by splitting the capacity curve into five parts, utilizing empirical formulas which are represented as a function of yield displacement and ultimate displacement. As a result, four levels of damage limit states are determined. A maximum likelihood estimation procedure for the process of fragility curves determination is noted as a final step in the proposed procedure. As a result, region specific series of vulnerability curves for structures are defined.},
  language  = {en}
}
@inproceedings{Butenweg2021,
  author    = {Butenweg, Christoph},
  title     = {Integrated approach for monitoring and management of buildings with digital building models and modern sensor technologies},
  series = {Civil Engineering 2021 - Achievements and Visions: Proceedings of the International Conferenecs celebrating 175th Anniversary of the Faculty of Civil Engineering, University of Belgrade, October 25 - 26, 2021 Belgrade, Serbia},
  booktitle = {Civil Engineering 2021 - Achievements and Visions: Proceedings of the International Conferenecs celebrating 175th Anniversary of the Faculty of Civil Engineering, University of Belgrade, October 25 - 26, 2021 Belgrade, Serbia},
  editor    = {Kuzmanović, Vladan and Ignjatović, Ivan},
  publisher = {University of Belgrade},
  address   = {Belgrade},
  year      = {2021},
  language  = {en}
}
@inproceedings{MilijašŠakićMarinkovićetal.2021,
  author    = {Milijaš, Aleksa and Šakić, Bogdan and Marinković, Marko and Butenweg, Christoph},
  title     = {Experimental investigation of behaviour of masonry infilled RC frames under out-of-plane loading},
  series = {8th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering},
  booktitle = {8th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering},
  editor    = {Papadrakakis, Manolis and Fragiadakis, Michalis},
  publisher = {National Technical University of Athens},
  address   = {Athen},
  isbn      = {978-618-85072-5-8},
  issn      = {2623-3347},
  doi       = {10.7712/120121.8528.18914},
  pages     = {829 -- 846},
  year      = {2021},
  abstract  = {Masonry infills are commonly used as exterior or interior walls in reinforced concrete (RC) frame structures and they can be encountered all over the world, including earthquake prone regions. Since the middle of the 20th century the behaviour of these non-structural elements under seismic loading has been studied in numerous experimental campaigns. However, most of the studies were carried out by means of in-plane tests, while there is a lack of out-of-plane experimental investigations. In this paper, the out-of-plane tests carried out on full scale masonry infilled frames are described. The results of the out-of-plane tests are presented in terms of force-displacement curves and measured out-of-plane displacements. Finally, the reliability of existing analytical approaches developed to estimate the out-of-plane strength of masonry infills is examined on presented experimental results.},
  language  = {en}
}
@inproceedings{ŠakićMilijašMarinkovićetal.2021,
  author    = {Šakić, Bogdan and Milijaš, Aleksa and Marinković, Marko and Butenweg, Christoph and Klinkel, Sven},
  title     = {Influence of prior in-plane damage on the out-of-plane response of non-load bearing unreinforced masonry walls under seismic load},
  series = {8th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering},
  booktitle = {8th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering},
  editor    = {Papadrakakis, Manolis and Fragiadakis, Michalis},
  publisher = {National Technical University of Athens},
  address   = {Athen},
  isbn      = {9786188507258},
  issn      = {2623-3347},
  doi       = {10.7712/120121.8527.18913},
  pages     = {808 -- 828},
  year      = {2021},
  abstract  = {Reinforced concrete frames with masonry infill walls are popular form of construction all over the world as well in seismic regions. While severe earthquakes can cause high level of damage of both reinforced concrete and masonry infills, earthquakes of lower to medium intensity some-times can cause significant level of damage of masonry infill walls. Especially important is the level of damage of face loaded infill masonry walls (out-of-plane direction) as out-of-plane load cannot only bring high level of damage to the wall, it can also be life-threating for the people near the wall. The response in out-of-plane direction directly depends on the prior in-plane damage, as previous investigation shown that it decreases resistance capacity of the in-fills. Behaviour of infill masonry walls with and without prior in-plane load is investigated in the experimental campaign and the results are presented in this paper. These results are later compared with analytical approaches for the out-of-plane resistance from the literature. Conclusions based on the experimental campaign on the influence of prior in-plane damage on the out-of-plane response of infill walls are compared with the conclusions from other authors who investigated the same problematic.},
  language  = {en}
}
@article{ElDeibButenwegKlinkel2020,
  author    = {El-Deib, Khaled and Butenweg, Christoph and Klinkel, Sven},
  title     = {Erdbebennachweis von Mauerwerksbauten mit realistischen Modellen und erh{\"o}hten Verhaltensbeiwerten},
  series = {Bautechnik},
  volume    = {97},
  journal   = {Bautechnik},
  number    = {11},
  publisher = {Ernst \& Sohn},
  address   = {Berlin},
  doi       = {10.1002/bate.202000016},
  pages     = {756 -- 765},
  year      = {2020},
  abstract  = {Die Anwendung des linearen Nachweiskonzepts auf Mauerwerksbauten f{\"u}hrt dazu, dass bereits heute Standsicherheitsnachweise f{\"u}r Geb{\"a}ude mit {\"u}blichen Grundrissen in Gebieten mit moderaten Erdbebeneinwirkungen nicht mehr gef{\"u}hrt werden k{\"o}nnen. Diese Problematik wird sich in Deutschland mit der Einf{\"u}hrung kontinuierlicher probabilistischer Erdbebenkarten weiter versch{\"a}rfen. Aufgrund der Erh{\"o}hung der seismischen Einwirkungen, die sich vielerorts ergibt, ist es erforderlich, die vorhandenen, bislang nicht ber{\"u}cksichtigten Tragf{\"a}higkeitsreserven in nachvollziehbaren Nachweiskonzepten in der Baupraxis verf{\"u}gbar zu machen. Der vorliegende Beitrag stellt ein Konzept f{\"u}r die geb{\"a}udespezifische Ermittlung von erh{\"o}hten Verhaltensbeiwerten vor. Die Verhaltensbeiwerte setzen sich aus drei Anteilen zusammen, mit denen die Lastumverteilung im Grundriss, die Verformungsf{\"a}higkeit und Energiedissipation sowie die {\"U}berfestigkeiten ber{\"u}cksichtigt werden. F{\"u}r die rechnerische Ermittlung dieser drei Anteile wird ein nichtlineares Nachweiskonzept auf Grundlage von Pushover-Analysen vorgeschlagen, in denen die Interaktionen von W{\"a}nden und Geschossdecken durch einen Einspanngrad beschrieben werden. F{\"u}r die Bestimmung der Einspanngrade wird ein nichtlinearer Modellierungsansatz eingef{\"u}hrt, mit dem die Interaktion von W{\"a}nden und Decken abgebildet werden kann. Die Anwendung des Konzepts mit erh{\"o}hten geb{\"a}udespezifischen Verhaltensbeiwerten wird am Beispiel eines Mehrfamilienhauses aus Kalksandsteinen demonstriert. Die Ergebnisse der linearen Nachweise mit erh{\"o}hten Verhaltensbeiwerten f{\"u}r dieses Geb{\"a}ude liegen deutlich n{\"a}her an den Ergebnissen nichtlinearer Nachweise und somit bleiben {\"u}bliche Grundrisse in Erdbebengebieten mit den traditionellen linearen Rechenans{\"a}tzen nachweisbar.},
  language  = {de}
}
@article{ButenwegRosin2020,
  author    = {Butenweg, Christoph and Rosin, Julia},
  title     = {Seismischer Nachweis von Mauerwerksbauten in deutschen Erdbebengebieten},
  series = {Mauerwerk},
  volume    = {24},
  journal   = {Mauerwerk},
  number    = {2},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1437-1022},
  doi       = {10.1002/dama.202000006},
  pages     = {108 -- 113},
  year      = {2020},
  abstract  = {Mit finanzieller Unterst{\"u}tzung der Deutschen Gesellschaft f{\"u}r Mauerwerks- und Wohnungsbau e.V. (DGfM) und des Deutschen Instituts f{\"u}r Bautechnik in Berlin (DIBt) wurden zwei aufeinander aufbauende Forschungsvorhaben zur Verbesserung der seismischen Nachweise von Mauerwerksbauten in deutschen Erdbebengebieten durchgef{\"u}hrt. Zun{\"a}chst wurde das seismische Verhalten von drei modernen unbewehrten Mauerwerksgeb{\"a}uden in der Region Emilia Romagna in Italien w{\"a}hrend der Erdbebenserie im Jahr 2012 in Kooperation mit der Universit{\"a}t Pavia eingehend untersucht. Aufbauend auf den Erkenntnissen dieser Untersuchungen wurde ein verbessertes seismisches Bemessungskonzept f{\"u}r unbewehrte Mauerwerksbauten erarbeitet. Der Beitrag stellt die wesentlichen Ergebnisse dieser Forschungsarbeiten und deren Eingang in die Normung vor.},
  language  = {de}
}
@article{MarinkovicButenweg2020,
  author    = {Marinkovic, Marko and Butenweg, Christoph},
  title     = {Ausfachungen aus Ziegelmauerwerk in Stahlbetonrahmentragwerken unter Erdbebenbeanspruchung},
  series = {Mauerwerk},
  volume    = {24},
  journal   = {Mauerwerk},
  number    = {4},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1437-1022},
  doi       = {10.1002/dama.202000011},
  pages     = {194 -- 205},
  year      = {2020},
  abstract  = {Stahlbetonrahmentragwerke mit Ausfachungen aus Mauerwerk weisen nach Erdbeben h{\"a}ufig schwere Sch{\"a}den auf. Gr{\"u}nde hierf{\"u}r sind die Beanspruchungen der Ausfachungsw{\"a}nde durch die aufgezwungenen Rahmenverformungen in Wandebene und die gleichzeitig auftretenden Tr{\"a}gheitskr{\"a}fte senkrecht zur Wandebene in Kombination mit der konstruktiven Ausf{\"u}hrung des Ausfachungsmauerwerks. Die Ausfachung wird in der Regel knirsch gegen die Rahmenst{\"u}tzen gemauert, wobei der Verschluss der oberen Fuge mit M{\"o}rtel oder Montageschaum erfolgt. Dadurch kommt es im Erdbebenfall zu lokalen Interaktionen zwischen Ausfachung und Rahmen, die in der Folge zu einem Versagen einzelner Ausfachungsw{\"a}nde oder zu einem sukzessiven Versagen des Gesamtgeb{\"a}udes f{\"u}hren k{\"o}nnen. Die beobachteten Sch{\"a}den waren die Motivation daf{\"u}r, in dem europ{\"a}ischen Forschungsprojekt INSYSME f{\"u}r Stahlbetonrahmentragwerke mit Ausfachungen aus hochw{\"a}rmed{\"a}mmenden Ziegelmauerwerk innovative L{\"o}sungen zur Verbesserung des seismischen Verhaltens zu entwickeln. Der vorliegende Beitrag stellt die im Rahmen des Projekts von den deutschen Projektpartnern (Universit{\"a}t Kassel, SDA-engineering GmbH) entwickelten L{\"o}sungen vor und vergleicht deren seismisches Verhalten mit der traditionellen Ausf{\"u}hrung der Ausfachungsw{\"a}nde. Grundlage f{\"u}r den Vergleich sind statisch-zyklische Wandversuche und Simulationen auf Wandebene. Aus den Ergebnissen werden Empfehlungen f{\"u}r die erdbebensichere Auslegung von Stahlbetonrahmentragwerken mit Ausfachungen aus Ziegelmauerwerk abgeleitet.},
  language  = {de}
}
@article{MarinkovicButenweg2020,
  author    = {Marinkovic, Marko and Butenweg, Christoph},
  title     = {Earthquake-proof system for masonry infills in RC frame structures},
  series = {International Journal of Masonry Research and Innovation},
  volume    = {5},
  journal   = {International Journal of Masonry Research and Innovation},
  number    = {2},
  publisher = {Inderscience Enterprises},
  address   = {Olney, Bucks},
  issn      = {2056-9467},
  doi       = {10.1504/IJMRI.2020.106328},
  pages     = {185 -- 208},
  year      = {2020},
  language  = {de}
}
@article{MichelButenwegKlinkel2020,
  author    = {Michel, P. and Butenweg, Christoph and Klinkel, S.},
  title     = {Einfluss der dynamischen Steifigkeit von Flach-und Pfahlgr{\"u}ndungen auf die Dynamik von Onshore-Windenergieanlagen},
  series = {Bauingenieur},
  volume    = {95},
  journal   = {Bauingenieur},
  number    = {4},
  publisher = {VDI Fachmedien},
  address   = {D{\"u}sseldorf},
  issn      = {0005-6650},
  pages     = {139 -- 146},
  year      = {2020},
  language  = {de}
}
@inproceedings{MarinkovicButenweg2020,
  author    = {Marinkovic, Marko and Butenweg, Christoph},
  title     = {Seismic behaviour of RC frames with uncoupled masonry infills having two storeys or two bays},
  series = {17th International Conference -From historical to sustainable masonry, Krakow, Poland, July 5-8, 2020},
  booktitle = {17th International Conference -From historical to sustainable masonry, Krakow, Poland, July 5-8, 2020},
  doi       = {10.1201/9781003098508-72},
  pages     = {1 -- 7},
  year      = {2020},
  language  = {en}
}