Movable friction type central guardrail and manufacturing method thereof

A guardrail and central technology, which is applied in the field of movable frictional central guardrail, can solve problems such as vehicle damage and personnel injury, and achieve high safety, reduce vehicle damage, and good anti-collision capabilities

Inactive Publication Date: 2017-07-28
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The central guardrails of highways such as national highways and provincial highways in China are mainly rigid guardrails. During the collision process,

Method used

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  • Movable friction type central guardrail and manufacturing method thereof
  • Movable friction type central guardrail and manufacturing method thereof
  • Movable friction type central guardrail and manufacturing method thereof

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the examples, rather than limiting the protection scope of the claims of the present invention.

[0029] Such as Figures 1 to 8 As shown, a movable frictional central guardrail includes a guardrail segment 1 of a reinforced concrete structure, the concrete strength grade is C30, and the internal steel skeleton meets the structural reinforcement and force requirements. The guardrail segment 1 The bottom surface is slidingly connected to the road. The bottom surface of the guardrail segment 1 is provided with a friction surface 4 that improves friction with the road. Made of steel (Q345), the adjacent guardrail segments 1 can relatively slide and rotate around hinge points on the road. The connector includes a cotter pin 31 pre-embedded on the guardrail segment and a bolt 32 installed on the cotter pin 31. In this example, the bolt 32 adopts a long bolt, and the two cotter pins are arranged vertic...

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Abstract

A movable friction type central guardrail and its manufacturing method, comprising a plurality of guardrail segments, the bottom surface of the guardrail segment is slidingly connected with the road, and the bottom surface of the guardrail segment is provided with a friction surface to improve friction with the road, The head and tail ends of the adjacent guardrail segments are hinged by connectors, so that the adjacent guardrail segments can slide and rotate relative to each other around the hinge point on the road. This device adopts double-slope cross-section guardrail segments to lift the center of gravity of the vehicle after the collision , relying on the connecting pins to realize the continuity and guiding ability of the guardrail, using the friction between the guardrail and the ground and the relative lateral movement between the guardrail and the ground to realize the buffering and energy dissipation in the process of the vehicle colliding with the guardrail, which is good for small cars and large cars The anti-collision ability can greatly reduce the damage of the vehicle and the occupants have higher safety.

Description

technical field [0001] The invention relates to a movable friction type central guardrail and a manufacturing method thereof. Background technique [0002] With the rapid development of our country's economy, automobiles are developing towards two extreme directions of miniaturization, large-scale and heavy-duty, thus putting forward higher requirements for traffic safety facilities. At present, the commonly used forms of highway crash barriers in my country can be divided into three types: rigid guardrails, semi-rigid guardrails and flexible guardrails. The main representative forms are concrete guardrails, wave beam guardrails and cable guardrails. The existing anti-collision guardrails show insufficient anti-collision ability and structural defects during the collision process, and are difficult to be suitable for the anti-collision of various types of vehicles. The traffic accidents caused by this have caused serious casualties and large economic losses. [0003] The ce...

Claims

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Application Information

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IPC IPC(8): E01F15/08
CPCE01F15/08E01F15/083E01F15/088
Inventor 杨剑吕昭旭范娟刘莎莎邹魁
Owner CENT SOUTH UNIV
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