Bridge structure
AssigneeMaunsell Structural Plastics Ltd.
InventorPeter Richard Head
Life of this patent
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Abstract
A bridge including a metal tubular space frame enclosed in a housing shell made principally from fibre reinforced plastics material which is maintenance free and protects the frame from corrosion. The upper surface of the housing shell forms a vehicular platform. The lower surface of the housing shell is of a curved aerodynamic shape and forms a load bearing access and maintenance platform. The space frame may include pre-stressing cables running alongside or inside elongate members of the space frame.
Claims10
A bridge suitable for long spans comprising a metal tubular space frame enclosed in a housing shell, having an upper surface and a lower surface, such that the housing shell protects the space frame from corrosion, the upper surface of the housing shell forming a vehicular platform and the lower surface of the housing shell being of a curved aerodynamic shape, forming a load bearing access and maintenance platform, and being made principally from fibre reinforced plastics material which is maintenance free.
Dependencies are inferred from the claim text.