GB1349076A - Vehicle crash barrier rail - Google Patents

Abstract

1349076 Roadside crash barriers ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE SA 28 May 1971 [29 May 1970 (2)] 18190/71 Heading E1G A lightweight bend-resistant crash barrier rail is formed from end-connected lengths 11, Fig. 5, each comprising an inverted-U or other sheet metal casing 12 - e.g. of galvanised steel - providing spaced side walls, and a filling of plastics (e.g. polyurethane) foam which bonds with the metal, the rail being seated around and optionally bonded to posts 17. Each post comprises sheet metal 18, Fig. 7, cladding a timber or foam plastics filling 22, the lower end being tapered, Figs. 2, 4 (not shown) and reinforced at the tip by inward folding (21) of the sheet metal. Each rail length may be prefabricated with a foam filling 24 which is omitted at certain locations - e.g. by means of transverse partitions - to facilitate post mountings and end connections, any cavities being filled in situ with plastics foam. Figs. 5 and 7 (an underneath view) show a butt-joint end connection at a post, using bonded-on metal wrapping 25, transverse straps 28 and in-situ foam 27 between rail-end partitions 23. In a modification, Fig. 6 (not shown), a rail length is prefabricated with a bonded-in sheet metal pocket (34) shaped to fit loosely over a post. Rail lengths may be interconnected between posts, Figs. 8 or 9 (not shown) by deforming the sheet metal casings to allow interfitting and adhering together.