E - Fixed Constructions – 01 – F
Patent
E - Fixed Constructions
01
F
E01F 15/08 (2006.01) E01F 13/00 (2006.01) E01F 15/02 (2006.01) E04C 5/18 (2006.01)
Patent
CA 2634087
A highway crash barrier structure with an improved interlocking system includes a plurality of rigid sections disposed end-to-end in interlocking relationship with one another. The ends of each rigid upright section are provided with a reshaped JJ Hooks® connection. Each hook member has an extending vertical lip which is bent into a "J" shaped cross-section to engage a similar lip on the hook member of the adjacent section such that lateral movement of the respective sections is prevented. However, the respective sections of the system can be easily placed or removed by vertically displacing them. In addition, the interlocking plates at each end of the upright sections are vertically lengthened while the number of bars welded to the plate is increased to reduce the rotational moment of the sections and increase shear transfer between adjacent sections. Furthermore, connections include deflection limitation stops located at the lower part of each end of each upright section which prevents spalling and decreases deflection during a crash. The deflection stops can be positioned wholly within the rigid sections or can protrude partway out the bottom of the sections for particular applications.
Easi-Set Industries
Macrae & Co.
Smith Rodney
LandOfFree
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