Anti-collision height-limiting rack for highway

Abstract

An anti-collision height-limiting rack for a highway comprises a cross bar (1), two uprights (2), two magnetorheological elastic supports (3), a plurality of embedded parts (4) and a plurality of magnetorheological dampers (5), wherein the cross bar (1) comprises more than three sections of cross bar single bodies; the cross bar single bodies are connected with each other through the magnetorheological dampers (5); the cross bar single bodies at the two ends of the cross bar (1) are respectively connected with the corresponding uprights (2) through the magnetorheological elastic supports (3); the uprights (2) are fixedly connected with a foundation through the embedded parts (4) arranged on the foundation; the tops of the uprights (2) are connected with the bottoms of the magnetorheological elastic supports (3); and the cross bar single bodies at the end parts of the cross bar (1) are fixed on support top plates (31) of the magnetorheological elastic supports (3) through cross bar connecting pieces (7). The anti-collision height-limiting rack for the highway has the advantages of reasonable structure, great resistance to shock, simple construction steps and convenient replacement or maintenance, is not prone to be damaged and can be widely applied to the field of highways, bridges, railways and the like.

Description

technical field [0001] The invention relates to the field of supporting facilities for roads and bridges, in particular to an anti-collision-limited elevated shelf for roads. Background technique [0002] In recent years, my country's road transport has developed rapidly, and motor vehicles have increased rapidly, especially large dump trucks, container vehicles and special-purpose vehicles. Vehicles often need to pass through railway bridges, highway bridges, tunnels and other buildings during driving. Accidents of super-high vehicles colliding with railways and highway bridges occur from time to time. These collision accidents pose a huge threat to the safe transportation of our country. In order to ensure safety and prevent super-high vehicles from colliding with the above-mentioned buildings and causing damage, it is a common way to set up height-limiting overhead. Most of the height-limiting frames are made of welded section steel, and the beams and columns are fixedly...

AI Technical Summary

Problems solved by technology

However, when this type of height-limiting frame is in use, once the super-height vehicle collides with the height-limiting frame, the vehicle and the height-limiting frame will be damaged together; it will even cause the frame to collapse, threatening personal safety

In addition, this type of height-limited shelf is not easy to replace, the maintenance cost is high, and it will cause long-term traffic jams after an accident

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