BTU overview
DFG Research Training Group 1913 "Cultural and Technological Significance of Historic Buildings"

Jonas Lengenfeld

Born in 1993, M.A. Training: Nationally certified technical assistant for historical monuments. Additional acquisition of Fachhochschulreife, in Soest (2009–2012). Academic studies: Construction in Existing Contents B.Eng., at Fachhochschule Münster (2012–2015) Thesis title: “status assessment of the historical building of the Gloriette on Clemenswerth Mansion” Supervisor: Prof. Dr.-Ing. Fix. Building Archaeology M.A.,focus of research:  Building Archaeology of the medieval and early modern period, at OTH Regensburg (2015–2017) Thesis title: „The chimneys of the so-called Römerturm in their historical context” Supervisor: Prof. Dr. Morsbach. Head of building Archaeology at architectural office Feldmaier, Straubing (2017–2019). Meanwhile Building archaeological attendance of an excavation in Bernau bei Berlin for „Archaeros Archäologische Dienstleistungen“. Since November 2019 scientific assistant in the departement of Construction History at the BTU Cottbus-Senftenberg under Prof. Dr.-Ing. Wendland.  

Research Focus: Building survey of geometrical complex constricted rooms, construction concepts and techniques of thick high medieval walls.

  

Research project:

The Development of Central European High Medieval Chimneys in Construction and Function, 1150–1250

  

Publications:

Lengenfeld, Jonas (forthcoming): Großes im Kleinen: Die Steinplanung des Bergfriedes der Schönburg im Kontext der Naumburger Dombauhütte um 1200, in: Saale-Unstrut-Jahrbuch 28, 2023.

Lengenfeld, Jonas (forthcoming): Die Planung der komplexen Werksteinjonstruktionen im Bergfried der Schönburg – das Werk eines Naumburger Meisters, in: Tagungsband der Fünften Jahrestagung der Gesellschaft für Bautechnikgeschichte 2021.

Lengenfeld, Jonas / Wendland, David (forthcoming): Die Kamine des Regensburger Römerturmes in ihrem baulichen und bauhistorischen Kontext, in: Arbeitskreis für Hausforschung e.V. (Hg.): Jahrbuch für Hausforschung 2019.

Lengenfeld, Jonas (2023): Some points on the construction of high medieval slewing cranes in towers in Germany based on building archaeology and a new find from the early 13th century, in: Campbell, J. et al. (Eds.): Studies in Construction History: Proceedings of the Tenth Annual Conference of the Construction History Society, Cambridge, 2023, pp. 57–74.

Lengenfeld, Jonas (2022): The complex masonry of the Schönburg Castle Keep chimney system (1201 CE) in the context of contemporary examples, in: Timber and Construction. The Proceedings of the Ninth Annual Conference of the Construction History Society, Cambridge 2022, pp. 23–37.

Lengenfeld, Jonas (2021): Simply Complex Case Studies on Complex Stone Constructions of High Medieval Courtly Chimneys, in: Proceedings of the Seventh International Congress on Construction History (7ICCH), Lisbon, Portugal, 12–16 July 2021, o.O. 2021, pp. 55–63.

Lengenfeld, Jonas / Gmeiner, Cornelia / Schaller, Katharina (2021): The „Old Jahn Stadium” in Regensburg – a lost piece of Olympic history, in: The Modern Heritage of the Olympic Games, ICOMOS Journals of the German national committee LXXVI, Berlin 2021, pp. 213–215.

Lengenfeld, Jonas (2018): Eine vertikale Wanderschalung des hohen Mittelalters. Die bauhistorische Untersuchung der Kamine des Regensburger “Römerturmes”, in: Verhandlungen des Historischen Vereins für Oberpfalz und Regensburg Nr. 158, 2018, pp. 11–24.

   

Presentations:

“Sichtbar aufwändig: Zur Steinplanung in Bögen und Gewölben hochmittelalterlicher Wehrbauten”. Geometrie und Konstruktion; Workshop der Arbeitsgruppe Schalen und Gewölbe der deutschen Gesellschaft für Bautechnikgeschichte, 9 October 2022 in Cottbus.

“The complex masonry of the Schönburg Castel Keep chimney system (1201 CE) in the context of contemporary examples”. Construction History Society Ninth Annual Conference, 1 March 2022 in Cambridge.

“Simply Complex: Case Studies on Complex Stone Constructions of High Medieval Courtly chimneys”. 7ICCH (Seventh International Congress on Construction History) 2021, 12 to 16 July 2021 in Lisbon.

“Die Planung der komplexen Werksteinkonstruktion im Bergfried der Schönburg – das Werk eines Naumburger Meisters”. With David Wendland. (Gesellschaft für Bautechnikgeschichte) annual conference 2021, 10 to 11 June 2021 in Zurich.

“Die romanischen Kamine des Regensburger Römerturmes in ihrem baulichen und bauhistorischen Kontext”. AHF (Arbeitskreis für Hausforschung) annual conference 2019, 3 to 6 October 2019 in Goslar.