Ductile Design of Glued-Laminated Timber Beams
| Autor: | Roberto Tomasi, Maria Adelaide Vittoria Parisi, Maurizio Piazza |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Materials science
Yield (engineering) Bending (metalworking) business.industry Tension (physics) Numerical analysis Building and Construction Structural engineering Brittleness Arts and Humanities (miscellaneous) Glued laminated timber business Ductility Reinforcement Civil and Structural Engineering |
| Zdroj: | Practice Periodical on Structural Design and Construction. 14:113-122 |
| ISSN: | 1943-5576 1084-0680 |
| DOI: | 10.1061/(asce)1084-0680(2009)14:3(113) |
| Popis: | Ductility is a fundamental component in the design of robust structures. For timber structures, the unfavorable material characteristics pose particular problems to its realization. Two approaches for improving the post-elastic behavior of glued-laminated timber beams have been investigated by testing and numerical analysis. The first is based on forming mixed beams with suitably assembled lamellae of different strength class; in the second, steel reinforcement is used. Satisfactory results have been obtained mixing laminations of different grade, whether from a single species or from different species, as long as the strengths of the lamellae are well differentiated. Steel-reinforced timber beams require taking special provisions in order to develop a ductile bending behavior, because material irregularities induce brittle failure of wood in tension before the steel bars may yield. Positive results were obtained, specifically preventing local failure modes, by releasing tension stresses in wood, by inser... |
| Databáze: | OpenAIRE |
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