Bridge anti-collision barrier

Abstract

The invention belongs to the field of bridges, and particularly provides a bridge anti-collision barrier. The barrier comprises longitudinal barriers and transverse barriers. The longitudinal barriersare cylindrical, and comprise stainless steel steel cylinder vertical columns, stainless steel energy absorption components and energy absorption rubber protective sleeves, wherein the stainless steel steel cylinder vertical columns, the stainless steel energy absorption components and the energy absorption rubber protective sleeves are sequentially arranged from inside to outside, the steel cylinder vertical columns are connected with the energy absorption components through bearings, and the longitudinal barriers are connected together through the transverse barriers. The transverse barriers comprise top rectangular steel pipes for connecting the tops of the longitudinal steel pipes, and middle rectangular steel pipes for connecting the middles of the longitudinal barriers. The different top rectangular steel pipes and the different middle rectangular steel pipes are in lap joint through small-section rectangular steel pipes respectively. According to the bridge anti-collision barrier, the longitudinal barriers are provided with the steel cylinder vertical columns, the bearings, the energy absorption components and the rubber protective sleeves from inside to outside, multi-layer deformation is achieved due to impact loads, the energy absorption effect is good, the bearings are driven to rotate through load collisions to well evacuate and conduct energy, and energy is absorbed in disguise.

Description

technical field [0001] The invention belongs to the field of bridges, in particular to a bridge anti-collision barrier. Background technique [0002] Bridge guardrail refers to the guardrail installed on the bridge. Its purpose is to prevent the out-of-control vehicles participating in the traffic from rushing out of the bridge, so that the vehicles cannot break through, pass under, or overturn the bridge, and it has the function of beautifying the bridge building. [0003] The currently known bridge guardrails are mainly made of stainless steel, and the material is relatively simple; the layout is uniformly arranged with columns, and then the beams are connected with each column. The structure is relatively simple, and then fixed on the bridge surface to bear the impact load together. The force model is single. This type of guardrail has no energy-absorbing design, and relies solely on the strength of the structure itself to resist the impact of loads, and the impact forc...

AI Technical Summary

Problems solved by technology

[0003] The currently known bridge guardrails are mainly made of stainless steel, and the material is relatively simple; the layout is uniformly arranged with columns, and then the beams are connected with each column. The structure is relatively simple, and then fixed on the bridge surface to bear the impact load together. single force model

This type of guardrail has no energy-absorbing design, and relies solely on the strength of the structure itself to resist the impact of loads, and the impact force is relatively concentrated, cannot be evacuated, and the impact angle cannot be effectively changed, resulting in poor anti-collision performance of the structure. When encountering a large load impact, it is easy to Fracture, causing the vehicle to run out of the roadway, poor safety performance

If the anti-collision performance is improved only by improving the strength of the structure itself, this type of guardrail has the disadvantages of relatively high material cost, more materials, and too dense column arrangement, which affects the scenery under the bridge for passengers and also affects the beautiful design of the bridge.

At present, there is a lack of one that can absorb the impact energy of the vehicle well, change the impact angle of the vehicle to disperse the impact energy, protect the driving safety, solve the vehicle impact problem, and block the field of view with a small area, which can reduce the impact of the guardrail on the passengers on the car to watch the scenery under the bridge. Obstructive, aesthetically pleasing and cost-effective guardrails

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