Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Stiffness of Prosthetic Repairs for Historic Timber Beams
Abstract Glued connections are often used as reinforcements or repairs of decayed parts in historic timber frames. Those timber frames are most of the time statically indeterminate structures, meaning that the ratios of stiffness between different members and joints of the structure are related to distribution of stresses within the structure. Hence, a poor repair, i.e. a too stiff or at the contrary a too flexible intervention may change dangerously the distribution of stresses within the structure, induce cracks and damage the whole structure. However, there are still no guidelines on how to evaluate the stiffness of glued connections and therefore, on how to predict the impact of these interventions on the force distribution in the timber frame. This paper focuses on glued-in rods, and uses finite element models to predict and compare the stiffness of glued-in rods in different configurations of repairing connections. This study shows sensitively different axial stiffness between those configurations: they may indeed vary in the ratio of one to two for the same strength. This highlights the importance of predicting the stiffness of glued-in rod connections to be able to make recommendations for the configuration which best respects the original structure.
Stiffness of Prosthetic Repairs for Historic Timber Beams
Abstract Glued connections are often used as reinforcements or repairs of decayed parts in historic timber frames. Those timber frames are most of the time statically indeterminate structures, meaning that the ratios of stiffness between different members and joints of the structure are related to distribution of stresses within the structure. Hence, a poor repair, i.e. a too stiff or at the contrary a too flexible intervention may change dangerously the distribution of stresses within the structure, induce cracks and damage the whole structure. However, there are still no guidelines on how to evaluate the stiffness of glued connections and therefore, on how to predict the impact of these interventions on the force distribution in the timber frame. This paper focuses on glued-in rods, and uses finite element models to predict and compare the stiffness of glued-in rods in different configurations of repairing connections. This study shows sensitively different axial stiffness between those configurations: they may indeed vary in the ratio of one to two for the same strength. This highlights the importance of predicting the stiffness of glued-in rod connections to be able to make recommendations for the configuration which best respects the original structure.
Stiffness of Prosthetic Repairs for Historic Timber Beams
Avez, Coralie (Autor:in) / Descamps, Thierry (Autor:in)
01.01.2016
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Timber , Glued-in rods , Repairs , Historic buildings , Stiffness of connections , FEM Engineering , Light Construction, Steel Construction, Timber Construction , Geoengineering, Foundations, Hydraulics , Structural Mechanics , Building Repair and Maintenance , History of Technology , Structural Materials
Repairs to Historic Structures
| Wiley | 2007
Reinforcement of bent timber beams in historic buildings
| British Library Conference Proceedings | 2009
Emergency Repairs for Historic Facades
| British Library Conference Proceedings | 2004
Emergency repairs for historic buildings
| TIBKAT | 1988