@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}
}
@book{ButenwegHoffmeisterHoltschoppenetal.2020,
  author    = {Butenweg, Christoph and Hoffmeister, Benno and Holtschoppen, Britta and Klinkel, Sven and Rosin, Julia and Schmitt, Timo},
  title     = {Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)},
  publisher = {Apprimus Verlag},
  address   = {Aachen},
  isbn      = {978-3-86359-729-0},
  pages     = {524 Seiten},
  year      = {2020},
  language  = {en}
}
@inproceedings{MarkinkovicButenwegPaveseetal.2020,
  author    = {Markinkovic, Marko and Butenweg, Christoph and Pavese, A. and Lanese, I. and Hoffmeister, B. and Pinkawa, M. and Vulcu, C. and Bursi, O. and Nardin, C. and Paolacci, F. and Quinci, G. and Fragiadakis, M. and Weber, F. and Huber, P. and Renault, P. and G{\"u}ndel, M. and Dyke, S. and Ciucci, M. and Marino, A.},
  title     = {Investigation of the seismic behaviour of structural and nonstructural components in industrial facilities by means of shaking table tests},
  series = {Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)},
  booktitle = {Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)},
  isbn      = {978-3-86359-729-0},
  pages     = {159 -- 172},
  year      = {2020},
  language  = {en}
}
@inproceedings{CacciatoreButenweg2020,
  author    = {Cacciatore, Pamela and Butenweg, Christoph},
  title     = {Seismic safety of cylindrical granular material steel silos under seismic loading},
  series = {Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)},
  booktitle = {Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)},
  isbn      = {978-3-86359-729-0},
  pages     = {231 -- 244},
  year      = {2020},
  language  = {en}
}
@inproceedings{MichelRosinButenwegetal.2020,
  author    = {Michel, Philipp and Rosin, Julia and Butenweg, Christoph and Klinkel, Sven},
  title     = {Soil-dependent earthquake spectra in the analysis of liquid-storage-tanks on compliant soil},
  series = {Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)},
  booktitle = {Seismic design of industrial facilities 2020: proceedings of the 2nd International Conference on Seismic Design of Industrial Facilities (SeDIF-Conference)},
  isbn      = {978-3-86359-729-0},
  pages     = {245 -- 254},
  year      = {2020},
  language  = {en}
}
@article{MarinkovićFloresCalvinistiButenweg2020,
  author    = {Marinković, Marko and Flores Calvinisti, Santiago and Butenweg, Christoph},
  title     = {Numerical analysis of reinforced concrete frame buildings with decoupled infill walls},
  series = {Building Materials and Structures},
  volume    = {63},
  journal   = {Building Materials and Structures},
  number    = {4},
  publisher = {Society for Materials and Structures Testing of Serbia},
  address   = {Belgrad},
  issn      = {2217-8139},
  doi       = {10.5937/GRMK2004013M},
  pages     = {13 -- 48},
  year      = {2020},
  abstract  = {Reinforced concrete (RC) buildings with masonry infill walls are widely used in many countries all over the world. Although infills are considered as non-structural elements, they significantly change dynamic characteristics of RC frame structures during earthquake excitation. Recently, significant effort was spent on studying decoupled infills, which are isolated from the surrounding frame usually by adding a gap between frame and infill. In this case, the frame deformation does not activate infill wall, thus infills are not influencing the behaviour of the frame. This paper presents the results of the investigation of the behaviour of RC frame buildings with the INODIS system that decouples masonry infills from the surrounding frame. Effect of masonry infill decoupling was investigated first on the one-bay onestorey frame. This was used as a base for parametric study on the frames with more bays and storeys, as well as on the building level. Change of stiffness and dynamic characteristics was analysed as well as response under earthquake loading. Comparison with the bare frame and traditionally infilled frame was performed. The results show that behaviour of the decoupled infilled frames is similar to the bare frame, whereas behaviour of frames with traditional infills is significantly different and demands complex numerical models. This means that if adequate decoupling is applied, design of},
  language  = {mul}
}
@inproceedings{MarinkovićButenweg2020,
  author    = {Marinković, Marko and Butenweg, Christoph},
  title     = {Out-of-plane behavior of decoupled masonry infills under seismic loading},
  series = {17th World Conference on Earthquake Engineering, Sendai, Japan, September 27 to October 2, 2021.},
  booktitle = {17th World Conference on Earthquake Engineering, Sendai, Japan, September 27 to October 2, 2021.},
  pages     = {13 Seiten},
  year      = {2020},
  abstract  = {Masonry is used in many buildings not only for load-bearing walls, but also for non-load-bearing enclosure elements in the form of infill walls. Many studies confirmed that infill walls interact with the surrounding reinforced concrete frame, thus changing dynamic characteristics of the structure. Consequently, masonry infills cannot be neglected in the design process. However, although the relevant standards contain requirements for infill walls, they do not describe how these requirements are to be met concretely. This leads in practice to the fact that the infill walls are neither dimensioned nor constructed correctly. The evidence of this fact is confirmed by the recent earthquakes, which have led to enormous damages, sometimes followed by the total collapse of buildings and loss of human lives. Recently, the increasing effort has been dedicated to the approach of decoupling of masonry infills from the frame elements by introducing the gap in between. This helps in removing the interaction between infills and frame, but raises the question of out-of-plane stability of the panel. This paper presents the results of the experimental campaign showing the out-of-plane behavior of masonry infills decoupled with the system called INODIS (Innovative decoupled infill system), developed within the European project INSYSME (Innovative Systems for Earthquake Resistant Masonry Enclosures in Reinforced Concrete Buildings). Full scale specimens were subjected to the different loading conditions and combinations of in-plane and out-of-plane loading. Out-of-plane capacity of the masonry infills with the INODIS system is compared with traditionally constructed infills, showing that INODIS system provides reliable out-of-plane connection under various loading conditions. In contrast, traditional infills performed very poor in the case of combined and simultaneously applied in-plane and out-of-plane loading, experiencing brittle behavior under small in-plane drifts followed by high out-of-plane displacements. Decoupled infills with the INODIS system have remained stable under out-of-plane loads, even after reaching high in-plane drifts and being damaged.},
  language  = {en}
}
@inproceedings{MilkovaButenwegDumovaJovanoska2020,
  author    = {Milkova, Kristina and Butenweg, Christoph and Dumova-Jovanoska, Elena},
  title     = {Methodology for development of seismic vulnerability curve for existing unreinforced Masonry buildings},
  series = {17th World Conference on Earthquake Engineering, Sendai, Japan, September 27 to October 2, 2021.},
  booktitle = {17th World Conference on Earthquake Engineering, Sendai, Japan, September 27 to October 2, 2021.},
  pages     = {13 Seiten},
  year      = {2020},
  abstract  = {Seismic behavior of an existing unreinforced masonry building built pre-modern code, located in the City of Ohrid, Republic of North Macedonia has been investigated in this paper. The analyzed school building is selected as an archetype in an ongoing project named "Seismic vulnerability assessment of existing masonry structures in Republic of North Macedonia (SeismoWall)". Two independent segments were included in this research: Seismic hazard assessment by creating a cite specific response spectra and Seismic vulnerability definition by creating a region - specific series of vulnerability curves for the chosen building topology. A reliable Seismic Hazard Assessment for a selected region is a crucial point for performing a seismic risk analysis of a characteristic building class. In that manner, a scenario - based method that incorporates together the knowledge of tectonic style of the considered region, the active fault characterization, the earth crust model and the historical seismicity named Neo Deterministic approach is used for calculation of the response spectra for the location of the building. Variations of the rupturing process are taken into account in the nucleation point of the rupture, in the rupture velocity pattern and in the istribution of the slip on the fault. The results obtained from the multiple scenarios are obtained as an envelope of the response spectra computed for the cite using the procedure Maximum Credible Seismic Input (MCSI). Capacity of the selected building has been determined by using nonlinear static analysis. MINEA software (SDA Engineering) was used for verification of the structural safety of the chosen unreinforced masonry structure. In the process of optimization of the number of samples, computational cost required in a Monte Carlo simulation is significantly reduced since the simulation is performed on a polynomial response surface function for prediction of the structural response. Performance point, found as the intersection of the capacity of the building and the spectra used, is chosen as a response parameter. Five levels of damage limit states based on the capacity curve of the building are defined in dependency on the yield displacement and the maximum displacement. Maximum likelihood estimation procedure is utilized in the process of vulnerability curves determination. As a result, region specific series of vulnerability curves for the chosen type of masonry structures are defined. The obtained probabilities of exceedance a specific damage states as a result from vulnerability curves are compared with the observed damages happened after the earthquake in July 2017 in the City of Ohrid, North Macedonia.},
  language  = {en}
}
@inproceedings{TomicPennaDeJongetal.2020,
  author    = {Tomic, Igor and Penna, Andrea and DeJong, Matthew and Butenweg, Christoph and Senaldi, Ilaria and Guerrini, Gabriele and Malomo, Daniele and Beyer, Katrin},
  title     = {Blind predictions of shake table testing of aggregate masonry buildings},
  series = {17th World Conference on Earthquake Engineering, Sendai, Japan, September 27 to October 2, 2021.},
  booktitle = {17th World Conference on Earthquake Engineering, Sendai, Japan, September 27 to October 2, 2021.},
  year      = {2020},
  abstract  = {In many historical centers in Europe, stone masonry is part of building aggregates, which developed when the layout of the city or village was densified. The analysis of such building aggregates is very challenging and modelling guidelines missing. Advances in the development of analysis methods have been impeded by the lack of experimental data on the seismic response of such aggregates. The SERA project AIMS (Seismic Testing of Adjacent Interacting Masonry Structures) provides such experimental data by testing an aggregate of two buildings under two horizontal components of dynamic excitation. With the aim to advance the modelling of unreinforced masonry aggregates, a blind prediction competition is organized before the experimental campaign. Each group has been provided a complete set of construction drawings, material properties, testing sequence and the list of measurements to be reported. The applied modelling approaches span from equivalent frame models to Finite Element models using shell elements and discrete element models with solid elements. This paper compares the first entries, regarding the modelling approaches, results in terms of base shear, roof displacements, interface openings, and the failure modes.},
  language  = {en}
}
@inproceedings{TomićPennaDeJongetal.2020,
  author    = {Tomić, Igor and Penna, Andrea and DeJong, Matthew and Butenweg, Christoph and Correia, Ant{\´o}nio A. and Candeias, Paulo X. and Senaldi, Ilaria and Guerrini, Gabriele and Malomo, Daniele and Beyer, Katrin},
  title     = {Seismic testing of adjacent interacting masonry structures},
  series = {12th International Conference on Structural Analysis of Historical Constructions (SAHC 2020)},
  booktitle = {12th International Conference on Structural Analysis of Historical Constructions (SAHC 2020)},
  doi       = {10.23967/sahc.2021.234},
  pages     = {1 -- 12},
  year      = {2020},
  abstract  = {In many historical centres in Europe, stone masonry buildings are part of building aggregates, which developed when the layout of the city or village was densified. In these aggregates, adjacent buildings share structural walls to support floors and roofs. Meanwhile, the masonry walls of the fa{\c{c}}ades of adjacent buildings are often connected by dry joints since adjacent buildings were constructed at different times. Observations after for example the recent Central Italy earthquakes showed that the dry joints between the building units were often the first elements to be damaged. As a result, the joints opened up leading to pounding between the building units and a complicated interaction at floor and roof beam supports. The analysis of such building aggregates is very challenging and modelling guidelines do not exist. Advances in the development of analysis methods have been impeded by the lack of experimental data on the seismic response of such aggregates. The objective of the project AIMS (Seismic Testing of Adjacent Interacting Masonry Structures), included in the H2020 project SERA, is to provide such experimental data by testing an aggregate of two buildings under two horizontal components of dynamic excitation. The test unit is built at half-scale, with a two-storey building and a one-storey building. The buildings share one common wall while the fa{\c{c}}ade walls are connected by dry joints. The floors are at different heights leading to a complex dynamic response of this smallest possible building aggregate. The shake table test is conducted at the LNEC seismic testing facility. The testing sequence comprises four levels of shaking: 25\%, 50\%, 75\% and 100\% of nominal shaking table capacity. Extensive instrumentation, including accelerometers, displacement transducers and optical measurement systems, provides detailed information on the building aggregate response. Special attention is paid to the interface opening, the globa},
  language  = {en}
}