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Dry-type connected fabricated concrete guardrail

A prefabricated, concrete technology, used in road safety devices, bridge parts, roads, etc., can solve the problem of no high protection level, and achieve the effect of solving the problem of hole positioning, improving stability, and facilitating disassembly and assembly.

Pending Publication Date: 2022-02-15
BEIJING ZHONGLUAN TRAFFIC TECHCAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But there is no prefabricated concrete guardrail structure with high protection level

Method used

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  • Dry-type connected fabricated concrete guardrail
  • Dry-type connected fabricated concrete guardrail
  • Dry-type connected fabricated concrete guardrail

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Embodiment Construction

[0032] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that "inner" in the present invention refers to a direction close to the axis of the bridge or road, and "outer" refers to a direction away from the axis of the bridge or road.

[0033] A dry-connected fabricated concrete barrier such as Figure 1-3As shown, including the guardrail body 1, along the direction of the guardrail, the bottom of the guardrail body 1 is provided with a plurality of bending bolt holes 11 and several shear bolt holes 12 arranged in a staggered manner; and the bending bolt holes 11 are close to the The inner side of the guardrail body is set, and the shear bolt holes 12 are set close to the outer side of the guardrail body, forming a triangular staggered arrangement of anchor hole groups, which can withstand vehicle collision load...

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Abstract

The invention discloses a dry-type connected fabricated concrete guardrail. A plurality of anti-bending bolt holes and a plurality of anti-shearing bolt holes which are arranged in a staggered manner are formed in the bottom of a guardrail body; the anti-bending bolt holes are arranged close to the inner side of the guardrail body, and the anti-shearing bolt holes are arranged close to the outer side of the guardrail body, so that parallel triangular staggered anchoring hole groups are formed, and vehicle collision loads at various angles can be borne after bolts are anchored. The height L1 of the portion, extending out of a base body, of an anti-bending screw rod is larger than the height L2 of the portion, extending out of the base body, of an anti-shearing screw rod, so that when the guardrail body is anchored to the base body, a neutral shaft of the anchoring face is moved to the anti-shearing bolt hole as much as possible, bending moment and shearing force borne by the guardrail can be conveniently absorbed respectively, and the overall stability of the guardrail is improved. And meanwhile, complete dry type connection on a construction site can be achieved, the hole alignment positioning problem can be solved, and disassembly and assembly are convenient.

Description

technical field [0001] The invention belongs to the technical field of road and bridge safety protection equipment, and in particular relates to a dry-connected assembled concrete guardrail. Background technique [0002] Concrete guardrail has the advantages of high protection level and low cost. It is the structural form widely used in bridge guardrails at present. However, the existing concrete guardrails are generally constructed by cast-in-place construction, which leads to many disadvantages, such as long cast-in-place construction period and prone to honeycomb pockmarks. , can not be concentrated maintenance. The prefabricated construction has the advantages of fast construction speed, saving energy resources, reducing construction pollution, improving labor production efficiency and quality level, and low overall cost. It is a construction technology that the country has vigorously promoted in recent years. But there is no prefabricated concrete guardrail structure w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/10E01F15/08
CPCE01D19/103E01F15/083E01F15/088
Inventor 荆坤梁亚平马亮贺志昂李雷
Owner BEIJING ZHONGLUAN TRAFFIC TECHCAL
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