Zprávy památkové péče 2013, 73(2):132-139

Design of all-wooden joints in the example of the repair of the truss of the church of the Assumption of the Virgin Mary in Vranov nad Dyjí

Michal Kloiber, Jiří Bláha, Jiří Kunecký, Hana Hasníková, Jan Trippner, Václav Sebera

Repairs to the truss on the nave of the parish church of the Assumption of the Virgin Mary in Vranov nad Dyjí was preceded by detailed structural and technical research focused on localizing the damaged areas, classifying the degree of damage, and determining the extent of concealed infestation using a non-destructive Fakopp Microsecond Timer ultrasonic device. Based on the results of structural and technical research, elements proposed for structural rehabilitation were drawn into drawing documentation and, in individual cases of damage, specific technological procedures were established for necessary remedial measures. In the structural rehabilitation proposal, all-wooden adjustable joints were applied that are, from a conservational perspective, viewed as very sensitive and fully compatible with the original carpentry constructions, which were mostly prepared using hand tools.
A static assessment of these joints is difficult under current regulations, and yet there exists no effective methodology for their design. Due to the growing interest in the implementation of all-wooden joints, a research project emerged that aims to create a certified pre-normative methodology for the design and safety assessment of all-wooden joints in the restoration and repair of monuments.

Keywords: all-wooden joint, wood, church, truss, roof, carpenter

Published: June 1, 2013  Show citation