CN220867977U - Column foot connecting device of anti-collision guardrail - Google Patents
Column foot connecting device of anti-collision guardrail Download PDFInfo
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- CN220867977U CN220867977U CN202322462319.3U CN202322462319U CN220867977U CN 220867977 U CN220867977 U CN 220867977U CN 202322462319 U CN202322462319 U CN 202322462319U CN 220867977 U CN220867977 U CN 220867977U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 164
- 239000010959 steel Substances 0.000 claims abstract description 164
- 230000004888 barrier function Effects 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims 7
- 238000010168 coupling process Methods 0.000 claims 7
- 238000005859 coupling reaction Methods 0.000 claims 7
- 210000001226 toe joint Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model discloses a column foot connecting device of an anti-collision guardrail, and relates to the technical field of bridge engineering. The anti-collision guardrail column foot connecting device provided by the embodiment of the utility model comprises: the upright post, the column base connecting steel plate and the column base embedded steel plate; the upright posts are vertically connected to the top surfaces of the column foot connecting steel plates, and the column foot embedded steel plates are vertically connected to the bottom surfaces of the column foot connecting steel plates; base longitudinal steel bars are connected between column foot embedded steel plates between adjacent columns, and the base longitudinal steel bars are connected with main beam embedded base steel bars. In the embodiment provided by the utility model, the upright posts are fixed through the column foot connecting steel plates and the column foot embedded steel plates, and the base longitudinal steel bars horizontally arranged and the main beam embedded base steel bars vertically arranged are connected between the column foot embedded steel plates between the upright posts, so that the impact force born by the guardrail is transferred to the upright posts and then is converted into the concrete integral bearing load by the node stress, the structure stress path is optimized, and the anti-collision safety of the guardrail can be further ensured.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to a column foot connecting device of an anti-collision guardrail.
Background
The crash barrier is used as an accessory facility of a bridge, and plays an important role in ensuring the safe passing of vehicles and preventing personnel and vehicle damage caused by falling. The beam column type steel anti-collision guardrail is widely applied to bridges because of light structure, attractive shape, transparent visual field and capability of being processed into various patterns.
In the prior art, when beam column type steel anti-collision guardrail is connected with a concrete bridge base, steel upright posts are welded with base embedded steel plates, the embedded steel plates are connected with the base through anchor bars, when a vehicle collides with the guardrail, load is transferred to column feet through the steel upright posts, the load is resisted only by the anchor bars of the column feet and local concrete, the requirement of the guardrail under the action of vehicle collision is hard to meet through calculation, and great potential safety hazards exist.
Disclosure of utility model
In view of the above, the utility model provides a column foot connecting device for an anti-collision guardrail, which can improve the connection strength of column feet of the guardrail, meet the stress requirement of the anti-collision guardrail when the anti-collision guardrail is impacted, and improve the safety of the anti-collision guardrail.
The utility model provides a column foot connecting device of an anti-collision guardrail, which comprises: the upright post, the column base connecting steel plate and the column base embedded steel plate;
the upright posts are vertically connected to the top surfaces of the column base connecting steel plates, and the column base embedded steel plates are vertically connected to the bottom surfaces of the column base connecting steel plates;
The column foot connecting steel plate, the column foot embedded steel plate and at least part of the upright post are arranged in the guardrail concrete base;
A base longitudinal steel bar is connected between the column foot embedded steel plates between the adjacent columns, and the base longitudinal steel bar is connected with a main beam embedded base steel bar;
the main beam embedded base steel bars are arranged between the adjacent upright posts, and the same main beam embedded base steel bars are arranged in the guardrail concrete base and the concrete beam cantilever at the bottom of the guardrail concrete base.
In an alternative embodiment, a plurality of the post pre-buried steel plates are uniformly connected at intervals along the horizontal direction at the bottom of the same post connecting steel plate.
In an optional embodiment, a plurality of steel plate reserved steel bar holes are formed in any of the column base embedded steel plates along the vertical direction;
And the two ends of any base longitudinal steel bar penetrate through steel plate reserved steel bar holes with the same horizontal height on the pre-embedded steel plates of the column base between the adjacent columns.
In an alternative embodiment, the toe box pre-buried steel plates are connected to the toe box connecting steel plates along two rows.
In an alternative embodiment, any of the main beam pre-buried base bars is connected to the base longitudinal bars respectively connected to the two rows.
In an alternative embodiment, the same embedded base bars of the main beams are bent in a shape of a door, and base longitudinal bars are connected between any section of the adjacent embedded base bars of the main beams.
In an alternative embodiment, the projection of the toe link steel plate covers at least the projection of the upright in the vertical direction.
Compared with the prior art, the anti-collision guardrail column foot connecting device provided by the utility model has the advantages that at least the following effects are realized:
In the embodiment provided by the utility model, the upright posts are fixed through the column foot connecting steel plates and the column foot embedded steel plates, the base longitudinal steel bars arranged horizontally and the main beam embedded base steel bars arranged vertically are connected between the column foot embedded steel plates between the upright posts, and the main beam embedded base steel bars also extend into the guardrail concrete base and the concrete beam cantilever, so that the impact force born by the guardrail is transferred to the upright posts and then is converted into the concrete integral bearing load by the node stress, the structure stress path is optimized, and the anti-collision safety of the guardrail can be ensured.
Of course, it is not necessary for any one product embodying the utility model to achieve all of the technical effects described above at the same time.
Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.
Fig. 1 is a schematic front view of a column foot connection device for a crash barrier according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a column foot connection device for a crash barrier according to the present utility model;
fig. 3 is a schematic cross-sectional view of another column foot connection device for a crash barrier according to the present utility model.
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
An embodiment of the present utility model provides a crash barrier toe connecting device, as shown in fig. 1 to 3, including: the column 1, the column base connecting steel plate 2 and the column base embedded steel plate 3;
The upright posts 1 are vertically connected to the top surfaces of the column base connecting steel plates 2, and a plurality of column base embedded steel plates 3 are vertically connected to the bottom surfaces of the column base connecting steel plates 2;
The column foot connecting steel plate 2, the column foot embedded steel plate 3 and at least part of the upright column 1 are arranged in the guardrail concrete base 10;
A base longitudinal steel bar 01 is connected between column foot embedded steel plates 3 between adjacent columns 1, and the base longitudinal steel bar 01 is connected with a main beam embedded base steel bar 02;
The main beam embedded base steel bars 02 are arranged between the adjacent upright posts 1, and the same main beam embedded base steel bars 02 are arranged in the guardrail concrete base 10 and the concrete beam cantilever 20 positioned at the bottom of the guardrail concrete base 10.
It will be appreciated that the plurality of posts 1 are spaced apart on the guardrail concrete base 10 and the cross member 4 is horizontally connected to the inner sides of the plurality of posts 1. The upright column 1 is connected with the guardrail concrete base 10 through a column foot connecting steel plate 2 and a column foot embedded steel plate 3.
Specifically, the upright column 1 and the post base embedded steel plate 3 are both vertically arranged, and the post base connecting steel plate 2 is horizontally arranged. The upright column 1 and the column base embedded steel plate 3 are respectively connected to the top and the bottom of the column base connecting steel plate 2. The column foot connecting steel plate 2, the column foot embedded steel plate 3 and at least part of the upright posts 1 are arranged in the guardrail concrete base 10 and are fixed by concrete pouring.
Since the force is transmitted downward along the upright 1 when the guardrail 4 is impacted by the vehicle, the strength of the connection between the upright 1 and the guardrail concrete base 10 needs to be improved, and therefore, the upright 1 is horizontally extended to the guardrail concrete base 10 by connecting the adjacent post-base embedded steel plates 3 between the adjacent uprights 1 through the base longitudinal steel bars 01.
Further, the base longitudinal steel bars 01 are also connected with the main beam embedded base steel bars 02, and the main beam embedded base steel bars 02 extend longitudinally and are at least positioned on the guardrail concrete base 10 and the concrete beam cantilever 20, so that the whole concrete bears load.
In the embodiment provided by the utility model, the upright posts are fixed through the column foot connecting steel plates and the column foot embedded steel plates, the base longitudinal steel bars arranged horizontally and the main beam embedded base steel bars arranged vertically are connected between the column foot embedded steel plates between the upright posts, and the main beam embedded base steel bars also extend into the guardrail concrete base and the concrete beam cantilever, so that the impact force born by the guardrail is transferred to the upright posts and then is converted into the concrete integral bearing load by the node stress, the structure stress path is optimized, and the anti-collision safety of the guardrail can be ensured.
In another alternative embodiment provided by the present utility model, referring to fig. 1, a plurality of post pre-buried steel plates 3 are uniformly connected at intervals to the bottom of the same post connecting steel plate 2 in the horizontal direction.
It is understood that the bottoms of the same column base connection steel plates 2 are connected with a plurality of column base embedded steel plates 3, and the column base embedded steel plates 3 are evenly partitioned. When the guardrail 4 receives impact force and transmits the impact force to the upright column 1, the plurality of column foot embedded steel plates 3 can transmit the force in a dispersed way.
In another alternative embodiment provided by the present utility model, referring to fig. 2, a plurality of steel plate reserved steel bar holes 31 are provided on any column base embedded steel plate 3 along the vertical direction;
The two ends of any base longitudinal steel bar 01 pass through steel plate reserved steel bar holes 31 with the same horizontal height on the column foot embedded steel plates 3 between the adjacent columns 1.
It can be understood that the column base pre-embedded steel plate 3 is provided with a plurality of steel plate reserved steel bar holes 31, and the base longitudinal steel bars 01 horizontally arranged between the adjacent columns 1 are connected through the steel plate reserved steel bar holes 31. Because the base longitudinal steel bars 01 are horizontally arranged, two ends of the base longitudinal steel bars 01 are respectively connected to the steel plate reserved steel bar holes 31 with the same height of the two column foot embedded steel plates 3.
Further, the column base embedded steel plate 3 is provided with a plurality of steel plate reserved steel bar holes 31, so that the same column base embedded steel plate 3 can be connected with a plurality of base longitudinal steel bars 01, and the column base connection strength is further improved.
In an alternative embodiment of the present utility model, referring to fig. 2, post-embedded steel plates 3 are connected to the post-connecting steel plates 2 in two rows.
It can be understood that the post connecting steel plate 2 is rectangular, and the post pre-buried steel plate 3 can be provided with two rows, and is close to the opposite both sides of the post connecting steel plate 2 respectively, can disperse the impact force like this, improves the security.
In another alternative embodiment of the present utility model, referring to fig. 3, any of the main beam pre-buried base bars 02 is connected to the base longitudinal bars 01 respectively connected to the two rows.
It can be understood that the main beam embedded base steel bars 02 are longitudinally arranged and can be connected with the base longitudinal steel bars 01 in two rows after being bent, so that the working procedures can be saved, and the strength of steel bar binding is further improved.
In another alternative embodiment provided by the utility model, with continued reference to fig. 3, the same main beam embedded base reinforcement 02 is bent in a "door" shape, and a base longitudinal reinforcement 01 is connected between any section of adjacent main beam embedded base reinforcement 02.
It will be appreciated that the main beam embedded base steel bars 02 are bent in a shape of a door so as to be connected with two rows of base longitudinal steel bars 01, wherein the base longitudinal steel bars 01 refer to base longitudinal steel bars 01 with two ends connected with the column base embedded steel plates 3. Meanwhile, the base longitudinal steel bars 01 can be connected to other positions of the main beam embedded base steel bars 02, such as the parts exceeding the length of the column foot embedded steel plates 3, so as to further enhance the connection strength and disperse the stress.
In another alternative embodiment provided by the present utility model, as shown in any one of fig. 1 to 3, the projection of the column base connection steel plate 2 covers at least the projection of the column 1 in the vertical direction.
It will be appreciated that the projection of the toe link steel plate 2 covers at least the projection of the column 1, the column 1 being connected to the geometric center of the toe link steel plate 2. The column base connecting steel plate 2 with a larger area can provide a larger space to be connected with the column base embedded steel plate 3, and the stress is dispersed.
In summary, the anti-collision guardrail column foot connecting device provided by the utility model at least has the following beneficial effects:
In the embodiment provided by the utility model, the upright posts are fixed through the column foot connecting steel plates and the column foot embedded steel plates, the base longitudinal steel bars arranged horizontally and the main beam embedded base steel bars arranged vertically are connected between the column foot embedded steel plates between the upright posts, and the main beam embedded base steel bars also extend into the guardrail concrete base and the concrete beam cantilever, so that the impact force born by the guardrail is transferred to the upright posts and then is converted into the concrete integral bearing load by the node stress, the structure stress path is optimized, and the anti-collision safety of the guardrail can be ensured.
While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.
Claims (7)
1. An anti-collision guardrail post base connecting device, characterized by comprising: the upright post, the column base connecting steel plate and the column base embedded steel plate;
the upright posts are vertically connected to the top surfaces of the column base connecting steel plates, and the column base embedded steel plates are vertically connected to the bottom surfaces of the column base connecting steel plates;
The column foot connecting steel plate, the column foot embedded steel plate and at least part of the upright post are arranged in the guardrail concrete base;
A base longitudinal steel bar is connected between the column foot embedded steel plates between the adjacent columns, and the base longitudinal steel bar is connected with a main beam embedded base steel bar;
the main beam embedded base steel bars are arranged between the adjacent upright posts, and the same main beam embedded base steel bars are arranged in the guardrail concrete base and the concrete beam cantilever at the bottom of the guardrail concrete base.
2. The crash barrier toe coupling device as set forth in claim 1, wherein a plurality of toe pre-buried steel plates are uniformly connected at intervals along a horizontal direction to the bottom of the same toe coupling steel plate.
3. The crash barrier toe joint apparatus as recited in claim 2, wherein a plurality of steel plate pre-reserved steel bar holes are provided on any one of the toe pre-buried steel plates in a vertical direction;
And the two ends of any base longitudinal steel bar penetrate through steel plate reserved steel bar holes with the same horizontal height on the pre-embedded steel plates of the column base between the adjacent columns.
4. The crash barrier toe coupling device as defined in claim 1 wherein said toe pre-buried steel plates are coupled to said toe coupling steel plates along two rows.
5. The crash barrier toe coupling apparatus of claim 4 wherein either of said main beam pre-buried base bars is coupled to said base longitudinal bars respectively coupled to two rows.
6. The crash barrier toe attachment of claim 5 wherein the same main beam pre-buried base bar is curved in a "gate" shape, and base longitudinal bars are connected between any section of adjacent main beam pre-buried base bars.
7. The crash barrier toe coupling device as recited in claim 1, wherein the projection of the toe coupling steel plate covers at least the projection of the pillar in a vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322462319.3U CN220867977U (en) | 2023-09-12 | 2023-09-12 | Column foot connecting device of anti-collision guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322462319.3U CN220867977U (en) | 2023-09-12 | 2023-09-12 | Column foot connecting device of anti-collision guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220867977U true CN220867977U (en) | 2024-04-30 |
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ID=90820173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322462319.3U Active CN220867977U (en) | 2023-09-12 | 2023-09-12 | Column foot connecting device of anti-collision guardrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220867977U (en) |
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2023
- 2023-09-12 CN CN202322462319.3U patent/CN220867977U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |