Toll station safety island flexible anti-collision structure based on honeycomb composite material

Abstract

The invention discloses a toll station safety island flexible anti-collision structure based on a honeycomb composite material. The toll station safety island flexible anti-collision structure comprises a safety island FRP protective layer and a safety island outer wrapped concrete layer; the safety island outer wrapped concrete layer has a main body forming structure of the safety island, and thesafety island FRP protective layer is connected with the outer layer of the safety island outer wrapped concrete layer through grouting liquid; the FRP protective layer comprises an FRP plate, a rubber concrete layer and a polyurethane foam layer. According to the designed polyurethane foam honeycomb structure layer, the elastic property of the rubber concrete is improved; the polyurethane foam is used as a layered structure in the rubber concrete and can effectively absorb the mechanical property of the rubber concrete after being impacted, so that the energy consumption characteristic of the anti-collision structure is improved; according to the toll station safety island structure based on FRP and polyurethane foam filling honeycomb-shaped rubber concrete, rapid construction can be conducted through the integrated forming technology, and the toll station safety island is remarkably and technically improved.

Description

technical field [0001] The invention relates to a safety island anti-collision structure for expressway toll stations, belonging to the technical fields of road anti-collision technology, highway engineering and composite materials, and in particular to a toll station based on FRP-cellular rubber concrete-polyurethane foam composite materials Safety island flexible anti-collision structure. Background technique [0002] Most of the existing toll station safety islands use concrete exterior coating warning patterns for early warning, but actually have no anti-collision function. [0003] Chinese patent CN201210489018.3 discloses a cushioning and energy-absorbing safety island anti-collision island head, including anti-collision units, connectors and fasteners, and the safety island anti-collision island head is composed of one or more anti-collision units through connectors and fixed on the road surface or at the end of the safety island by fasteners. The anti-collision unit...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to design a flexible anti-collision structure of the toll station safety island based on FRP-honeycomb rubber concrete-polyurethane foam composite material. Insufficient durability, excessive rigidity, poor safety, difficult and high repair costs after damage

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