Daily collision recovery type anti-collision column and construction method thereof

An anti-collision column, a daily technology, applied in the direction of infrastructure engineering, roads, buildings, etc., can solve the problems of poor waterproof performance at the joint, complex connection structure of non-fixed anti-collision column, affecting underground pipelines, etc., to enhance local connection. performance, improve the effect of anti-collision, and save the cost of materials

Active Publication Date: 2022-05-13
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the connection structure of the non-fixed anti-collision column is complex, the cost is high, and the foundation is deep. It may affect the normal operation of the underground pipeline when installing construction and resisting vehicles. The waterproof performance of the connection is poor, and its application is not as wide as that of the fixed anti-collision column.
However, the fixed anti-collision bollard is difficult to cope with daily collision damage, and has become the most serious vehicle obstacle device for daily collision damage

Method used

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  • Daily collision recovery type anti-collision column and construction method thereof
  • Daily collision recovery type anti-collision column and construction method thereof
  • Daily collision recovery type anti-collision column and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as Picture 1-1As shown in 0, a daily collision recovery type anti-collision column, the anti-collision column includes a column 20 inserted in the foundation 10, and the foundation 10 is composed of a steel mesh 13, concrete, a horizontal steel box 11 immersed in the concrete and no It is placed in the concrete and arranged at both ends of the horizontal steel box 11, and is composed of a vertical steel box 12 for connecting and fixing the horizontal steel box 11.

[0052] The upright column 20 is inserted into the transverse steel box 11, and the connection position between the upright column 20 and the foundation 10 is provided with a collision recovery device.

[0053] The crash recovery device includes a steel plate 30 with a through hole and a steel cavity 40 wrapping the steel plate 30, the steel cavity 40 is provided with a through hole corresponding to the column 20, and the bottom end of the column 20 is inserted In the through hole, the column 20 is fix...

Embodiment 2

[0068] For example, in the daily collision recovery anti-collision column in Example 1, when the second steel plate 32 is an integral steel plate, the construction method steps are as follows:

[0069] S1. After the horizontal steel box 11 and the vertical steel box 12 are set, a hole for inserting the upright 20 is opened on the horizontal steel box 11, and the connecting steel plate 43 is welded in the hole first, and then the upright 20 is inserted into the hole;

[0070] S2. Weld the second steel plate 32 at the bottom of the column 20, set the first rubber cushion layer 51 on the edge of the second steel plate 32, and then set the second rubber cushion layer 52 at the connection between the second steel plate 32 and the column 20, and weld the second steel container The top cover 40b of the cavity 42 ensures that the top cover 40b is attached to the lower surface of the horizontal steel box 11, and then the bottom plate 40a is welded under the top cover 40b;

[0071] S3. ...

Embodiment 3

[0080] The present invention does not specifically limit the specific size of the anti-collision post, which can be set according to actual needs. However, in practical applications, in order to achieve the best impact recovery, the maximum deflection angle θ of the column of the anti-collision column should not exceed 2°.

[0081] The formula for calculating the deflection angle θ is as follows:

[0082]

[0083] Among them, σ is the maximum lateral deflection of the top of column 20, and the calculation formula is as follows:

[0084]

[0085] In the formula: c is the maximum compressibility of the elastic material 50, t 1 For elastic material 50 use thickness, t 2 is the thickness of the steel plate 30, r is the radius of the major axis of the steel cavity 40, d is the foundation depth of the column 20 (that is, the vertical distance from the bottom surface of the column 20 to the ground), and H is the total height of the column 20.

[0086] Taking the anti-collisi...

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Abstract

The invention belongs to the field of constructional engineering, and particularly relates to a daily collision recovery type anti-collision column and a construction method thereof. The anti-collision column comprises a stand column inserted in a foundation, and the foundation comprises a transverse steel box and a longitudinal steel box used for being connected with the transverse steel box. The stand columns are inserted into the transverse steel boxes, and collision recovery devices are arranged at the connecting positions of the stand columns and the foundation. The collision recovery device comprises a steel plate with a through hole and a steel containing cavity wrapping the steel plate, the steel containing cavity is provided with a through hole corresponding to the stand column, the bottom end of the stand column is inserted into the through hole, the stand column is fixedly connected with the steel plate, and the steel containing cavity separates the bottom end of the stand column from the transverse steel box; a gap between the steel containing cavity and the steel plate is further filled with an elastic material. The steel containing cavity is used for isolating the stand column from the foundation, the stand column can deform together with the foundation through the synergistic effect of the steel plate and the steel containing cavity, and daily collision damage is resisted.

Description

technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to a daily collision recovery type anti-collision column and a construction method thereof. Background technique [0002] In response to violent and terrorist vehicle attacks, in order to effectively prevent violent and terrorist vehicle attacks, a series of vehicle obstacle devices have been developed at home and abroad, such as anti-collision barriers, lifting beams, wedge-shaped roadblocks and anti-collision posts, among which anti-collision posts are due to It is easy to construct and easy to decorate. It is widely used in airports, stations, government agencies, schools, hospitals and other important buildings, as well as the surroundings of public places such as parks and squares, effectively ensuring the safety of construction sites and personnel in construction sites. [0003] However, due to the obstacle properties of the anti-collision bollard itself and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F15/14E02D27/42F16F15/08
CPCE01F15/141E01F15/146E02D27/42F16F15/08Y02A30/30
Inventor 胡波吴家桐
Owner HEFEI UNIV OF TECH
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