Jasmin Schäfer

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Schäfer

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Jasmin

ORCID

0000-0001-8750-6853

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Publications 1 - 10 of 16

An Insight into the Building Process of Pont Valentré in Cahors (XIV Century)
Carmona López, Laura; Knobling, Clemens; Schäfer, Jasmin (2024)
Construction Matters: Proceedings of the 8th International Congress on Construction History
Pont Valentré is a fortified bridge that was built during the fourteenth century, crossing the river Lot in the town of Cahors (Occitania, France). Built of ashlar stone, the bridge is formed by six main ogival arches and three towers, connecting the rocky landscape on its western side to the main town on the eastern side. During the construction process of masonry bridges, temporary timber bridges were useful in various aspects, such as the transport of materials. This type of structure is commonly referred to as a service bridge. The present study is based on traces of a service bridge within the construction site in the case of Pont Valentré, which can still be identified at the cutwaters of the bridge. Observations and precise documentation have allowed an exhaustive study of the remaining features and subsequent reconstruction of the service bridge in Pont Valentré. Through this reconstruction, a possible construction sequence for the bridge was also discussed. The result of this work aims to enrich our understanding of how the service bridge was used in the construction of Pont Valentré, as well as in the broader context of building techniques of medieval masonry bridges in Southern France.
Late 18th-century innovation: The first Mediterranean purlin roof truss in German-speaking Switzerland at Embrach ZH
Schäfer, Jasmin (2021)
History of Construction Cultures
Swiss architect David Vogel (1744–1808) enjoyed a thorough theoretical training compared to his compatriots. His most important commission after his education was the transversely oriented “oval” reformed church at Embrach ZH (1779–80). Vogel’s designs show distinct Italian influences from three years of studies with Winckelmann in Rome in the 1760s. He integrated these ideas into the designs for the church at Embrach, where both the architectural layout and the construction were innovative for the German-speaking part of Switzerland, including the comparatively flat roof pitch with a Mediterranean roof truss. This paper focuses on the preserved construction, which adapts the Italian standard to local conditions. The roof structure at Embrach is pioneering since the type of roof truss employed was later generally adopted in the 19th century throughout the German-speaking world for constructions with a lower roof pitch.
Das Dachwerk der reformierten Kirche Wädenswil - Grubenmanns makelloses Meisterwerk?
Schäfer, Jasmin; Bastgen, Michael (2021)
Schriftenreihe der Gesellschaft für Bautechnikgeschichte ~ Reparieren – Ertüchtigen – Erhalten: Ansätze und Strategien seit der Antike
Dachwerke
Schäfer, Jasmin (2023)
Berichte zur Bauforschung und Konstruktionsgeschichte
Die Schweizer Bau- und Zimmermeister der Frühen Neuzeit gelten mit ihren herausragenden Tragkonstruktionen als Pioniere des Holzbaus. Mit bemerkenswertem Können erschufen sie über Jahrhunderte elaborierte hölzerne Dachwerke großer Spannweite, von denen die meisten bis heute hervorragend erhalten sind. Sie gehören neben den gedeckten Holzbrücken zu den wertvollsten materiellen Zeugnissen, die das Zimmermannshandwerk in ganz Europa hervorgebracht hat. Der zweite Band der Reihe Berichte zur Bauforschung und Konstruktionsgeschichte liefert eine umfassende Darstellung über die Entwicklung weitgespannter barockzeitlicher Dachwerke in der Deutschschweiz und setzt diese in einen übergeordneten Kontext. Der Fokus liegt insbesondere auf bautechnischen Innovationen im reformierten Kirchenbau, da die Realisierung weitgespannter, heller und vor allem stützenfreier Räume neue Lösungen für die Überdachung erforderte. Die Verknüpfung der Bauwerksanalyse mit der Spurensuche nach den verantwortlichen Meistern macht die Planungs- und Bauprozesse besonders erlebbar und bringt bisher im Verborgenen gelegene Meisterwerke ans Licht.
Erfurt, Benediktplatz 1. Bauforschung in den mittelalterlichen Kelleranlagen
Kojder, Kamila; Schäfer, Jasmin (2017)
Bauforschung und Denkmalpflege 1.2017. Jahrbuch des Fachgebietes Historische Bauforschung und Baudenkmalpflege, Technische Universität Berlin
The Eglisau Bridge Competition of 1805–10: a Kaleidoscope of Early Modern Construction Techniques
Schäfer, Jasmin (2024)
Construction Matters: Proceedings of the 8th International Congress on Construction History
For the reconstruction of the Rhine bridge in Eglisau (Switzerland), the building department of the canton of Zurich organized a public competition in 1805, which was exceptionally well received. Some of the most famous master builders, architects, and carpenters submitted their design proposals. No fewer than 36 plans for the competition have been preserved in the State Archives of Zurich, along with numerous cost estimates and expertise. The designs range from trestle bridges in wood and stone, partly reusing the old piers of the predecessor, up to structures with immense single spans of up to 130 m. Based on the plans of Hans Conrad Stadler a timber arch bridge with non-interlocking lamellas was executed in 1810. However, Stadler’s construction had to be demolished about 100 years later due to the regulation of the Rhine. Despite the loss of the original fabric, contemporary sources permit to obtain a very clear idea of the former construction system. Furthermore, this contribution focuses on the research into the unbuilt projects. The rich archival material demonstrates a wide spectrum of the most diverse construction typologies, such as queen post systems, polygonal or massive arches, which can be contextualized within the contemporary techniques.
Vision und Wirklichkeit: Modelle Schweizer Holzbrücken des 18. Jahrhunderts
Schäfer, Jasmin; Holzer, Stefan M. (2018)
Kunst + Architektur in der Schweiz ~ Architekturmodelle
«Zimmer-Jost», der Nachlass des Münsterer Baumeisters Jost Kopp als Spiegel des ländlichen Baugewerbes in der Zeit um1800
Gantner, Martin; Schäfer, Jasmin (2021)
Der Geschichtsfreund ~ Mikrogeschichte in der Zentralschweiz - Chancen und Grenzen quellennahen Forschens
The Building History of a Medieval Bridge: The Pont du Diable in Saint-Jean-de-Fos (Hérault, France)
Cione, Grazia; Schäfer, Jasmin; Voigts, Clemens (2024)
Construction Matters
During the Middle Ages, several stone arch bridges of a wide span were built outside large cities, in mountainous landscapes, resting on rocky abutments, sometimes elevated high above the river level. The construction of such high valley-crossing structures was challenging and required specific technical skills and great expertise. This present contribution is devoted to the study of a well-preserved case of such a high bridge: The Pont du Diable, located within the municipality of Saint-Jean-de-Fos (Hérault, France). The structure built in cut limestones has two prominent semicircular arches supported by a central pier. Considering that the bridge has been used for centuries, further construction measures, repairs (and enlargements) are evident. Special attention of the present study is paid to the evidence and on-site traces that might permit to deduce details of the building process. Based on the in-depth on-site investigation, recent surveys and archival research, the contribution discusses the findings regarding the construction process and the building phases of this remarkable example of medieval masonry bridge construction.
Beyond Grubenmann: Swiss carpentry (1750–1850)
Holzer, Stefan M.; Schäfer, Jasmin (2018)
Building Knowledge, Constructing Histories, Proceedings of the 6th International Congress on Construction History (6ICCH 2018), July 9-13, 2018, Brussels, Belgium

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Jasmin Schäfer

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