| 摘要 |
This relief device is of the type inserted between a pole and the member for fastening each span. According to the invention, it is constituted by a single monolithic component, made from a material whose elongation curve has a marked transition point between the elastic region and the plastic region, and is composed of at least two arms 2a-2b, the free ends of which are fitted with fastening means 7 and the other ends of which are linked via a zone of smaller cross-section z capable, above an overload value, of undergoing plastic yield in bending, according to the principle of the plastic swivel joint. <IMAGE>
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