Fabricated multi-stage flexible energy-dissipation height-limiting frames

Abstract

The invention discloses fabricated multi-stage flexible energy-dissipation height-limiting frames. The fabricated multi-stage flexible energy-dissipation height-limiting frames are arranged in an areaor a traffic safety management area where a road, a bridge, a tunnel, a pipe culvert and the like need to be protected, the positions of the height-limited frames which need to be set are selected according to the field condition, and each height-limiting frame adopts a fabricated structure and is provided with a multi-stage protection and flexible energy dissipation device and is used for reducing the maximum impact force of an impact vehicle, the first-stage protection is a high-damping rubber energy dissipation module on a thin-walled pipe cross beam, the second-stage protection is a shear-type buffer support, and the third-stage protection is a weak point where the thin-walled pipe cross beam is manually set at a flange at the weak end of the cross beam. Through the structural designthat the self-resetting capability is strong, the energy consumption is high, the light weight and modularization are achieved, the replacement and maintenance are convenient, and fabricated type full-bolts are connected, the limited vehicle can be effectively intercepted, vehicle damage is reduced, casualties are avoided, and road traffic safety and smoothness are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of traffic facilities and relates to a height-limiting overhead shelf, in particular to an assembled multi-stage flexible energy-dissipating overhead-limiting overhead shelf. Background technique [0002] In order to strengthen the protection and traffic safety management of roads, bridges, tunnels, and pipes and culverts, the traffic management department takes certain measures to restrict the passage of large, heavy-duty or super-high vehicles on roads, bridges, tunnels, and pipes and culverts that need to be protected. Elevation limit overpasses are set up at the entrances of these road sections, bridges or tunnels to protect roads, bridges, tunnels and pipes and culverts to ensure driving safety. But, even so, the existing height limit accidents also often occur. The main reasons for the frequent accidents of elevated-limited highways are: high road traffic pressure, weak safety awareness of drivers, in...

AI Technical Summary

Problems solved by technology

However, life is the most precious, and it is priceless. Find a way to reduce or even avoid traffic accidents, effectively intercept restricted vehicles, reduce vehicle damage, avoid casualties, ensure road traffic safety, maintain smooth traffic, and avoid traffic accidents. The new type of height-limiting overhead for secondary damage has become a key technical problem that needs to be solved urgently around the world

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