Road structure – process – or apparatus – Traffic steering device or barrier
Patent
1991-06-05
1993-03-09
Bui, Thuy M.
Road structure, process, or apparatus
Traffic steering device or barrier
256 131, E01F 1500
Patent
active
051921570
ABSTRACT:
An energy-absorbing crash barrier is provided with multiple energy-absorbing elements. Each element includes an expanded metal sheet formed as a tubular column which is internally braced with foam. In some of the sections multiple metal columns are provided, one eccentrically positioned within the other. The expanded metal columns provide the major energy-absorbing elements of the barrier, and the eccentrically positioned columns define a preferred bending direction which tends to redirect an axially impacting vehicle away from a hardpoint. The columns in the individual elements are graduated in axial stiffness such that a forward section tends to collapse before the rearward sections, thereby providing staged collapse.
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Drawing No. 35-09-51-E "Hex-Foam II Cartridge Exploded View" dated Jul. 1987.
Drawing No. 21-00-07 "(HexFoam II Cartridges) Core Assy", Honeycomb Steel (Type 51) dated Nov. 11, 1986.
Bui Thuy M.
Connolly Nancy
Energy Absorption Systems, Inc.
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