Pierre Quenneville - Resilience of timber structures
Автор: Auckland Structural Group
Загружено: 2019-08-21
Просмотров: 383
Описание:
For timber engineers, the provision of ductility can only be achieved through connections as structural timber members will fail in a brittle manner. The traditional design philosophy has been to specify a large quantity of small dowel-type fasteners that would repeatedly bend and crush the wood fibres to provide the ductility and strength. Design concepts have been developed using this philosophy and efficient structural system are used in light timber framing. Nevertheless, this design philosophy has its pitfall.
With the introduction of mass timber construction and a desire to use more timber in non-residential construction, higher timber buildings are being considered and the traditional LLRS used in light framing are no longer appropriate. New resisting systems have and are being developed to provide the required ductility. The evolution in timber building height, resulting in higher resistance demands, combined with the desire to provide low-damage solutions, is leading researchers around the world to propose strong and discrete solutions.
During the presentation, desirable timber connection features were discussed (e.g. ductility and over-strength factors). Various timber connection concepts are presented along with their characteristics, advantages and pitfalls.
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