Steerable prefabricated FRP anti-collision guardrail or prestress concrete bridge

An anti-collision guardrail and concrete technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve problems such as excessive concrete weight, and achieve the effects of reducing collision damage, speeding up construction progress, and convenient and fast installation.

Pending Publication Date: 2020-01-21
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a turnable prefabricated FRP anti-collision barrier applied to prestressed concrete bridges, use new materials to improve the defect of excessive concrete weight, and retain the energy conversion of co

Method used

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  • Steerable prefabricated FRP anti-collision guardrail or prestress concrete bridge
  • Steerable prefabricated FRP anti-collision guardrail or prestress concrete bridge
  • Steerable prefabricated FRP anti-collision guardrail or prestress concrete bridge

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Embodiment 1

[0029] Embodiment one: see Figure 1-Figure 5 .

[0030] The invention discloses a steerable prefabricated FRP anti-collision barrier applied to prestressed concrete bridges, which comprises a prefabricated FRP anti-collision shell component 1, and the prefabricated FRP anti-collision shell component 1 is composed of an upper shell 101, an outer shell 102, an inner shell The shell 103 and the bottom shell 104 form a hollow shell, the bottom of the prefabricated FRP anti-collision shell component 1 is filled with a concrete base 6, and the prefabricated FRP anti-collision shell component 1 is firmly connected with the bridge. The outer side is provided with a reserved position for installing the steering drum 5, and the steering drum 5 is connected to the reserved position of the base through the axle 7; inside the prefabricated FRP anti-collision shell member 1, there are structural steel bars 201, vertical steel bars 202, W Shaped low yield point steel plate 3, the structura...

Embodiment 2

[0044] Embodiment two: see Figure 6-9 .

[0045] The similarities between this embodiment and the embodiment will not be described in detail, the difference is that in this embodiment, the stopper 9 is cancelled.

[0046] When canceling stop 9:

[0047]S1. During the construction of the bridge deck, the base of the guardrail and the bridge deck are integrally poured, the structural steel bars 201 and the vertical steel bars 202 are arranged, and the axle 7 and the roller 5 are assembled.

[0048] S2. Connect the low-yield point steel plate 3 to the structural steel bar 201, insert the low-yield point steel plate 3 between the vertical structural steel bars 202, assemble the upper shell 101 and the outer shell 102, and fix them to the structural steel bar 201.

[0049] S3. Fill the buffer material and assemble the inner shell 103 .

[0050] When the guardrail is hit, 103 is the force bearing surface. If the car wheel or the body hits the drum 5 somewhere, the drum rotates, ...

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Abstract

A steerable prefabricated FRP anti-collision guardrail for a prestress concrete bridge comprises a prefabricated FRP anti-collision shell component. The prefabricated FRP anti-collision shell component is a hollow shell defined by an upper shell, an outer side shell, an inner side shell and a bottom shell. The bottom of the prefabricated FRP anti-collision shell component is filled with a concretebase. The prefabricated FRP anti-collision shell component is fastened and connected to a bridge. The outer side of the concrete base is provided with a reserved position for installing a steering roller. The steering roller is connected to the reserved position of the base through an axle. Constructional steel bars, vertical steel bars and W-shaped low-yield-point steel plates are arranged in the prefabricated FRP anti-collision shell component. A gap in the prefabricated FRP anti-collision shell component is filled with a filling material. The colliding and climbing energy converting mode of the concrete wall type guardrail is kept, meanwhile multiplex buffering is performed in the guardrail, a vehicle is guided to change the collision angle during collision, the damage to the vehicle is relieved, and the construction progress is accelerated by prefabricating the component.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a steerable prefabricated FRP anti-collision barrier applied to prestressed concrete bridges. Background technique [0002] In recent years, with the rapid development of highways and bridges in our country, the number of vehicles is increasing day by day, the incidence of traffic accidents is getting higher and higher, and traffic safety has been paid more and more attention by people. Therefore, it is of great significance to choose the appropriate road guardrail and make it fully play its role to protect the occupants and reduce the number of accident casualties. Bridge guardrail refers to the guardrail set on the bridge to protect personal safety and equipment and facilities. Its purpose is to prevent out-of-control vehicles from getting out of the bridge. Features. According to the structural features, it can be divided into beam-column (metal and concrete) guar...

Claims

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Application Information

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IPC IPC(8): E01D19/10E01F15/14
CPCE01D19/103E01F15/145E01F15/146
Inventor 田钦岳慧张兰林谢英许
Owner NANCHANG UNIV
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