Author(s)

M. del Senno & M. Piazza

Abstract

Behaviour and rehabilitation of queen post timber trusses: A case study M. del senno' & M. piazza2 1 TTl Trees and Timber Institute, CNR, S. Michele Adige (Trento), Italy. 2 Dept. of Mechanical and Structural Engineering, University of Trento, Trento, Italy. Abstract The availability of a wooden queen post truss of the early nineteenth century has provided a unique opportunity to evaluate performances and need for restoration of these structures, and to assess the possible intervention procedures, resorting to both traditional and innovative (glued in steel bars) methods. The truss has been characterized geometrically and statically, and its material (Abies alba Mill) has been classified. The damages have been identified using non-destructive test methods, and the actual performance of each timber element of the truss has been assessed by means of full scale loading tests in the elastic field. The same type of tests has been carried out on those components that had undergone restoration. The d

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