CN215052082U - a bridge guardrail - Google Patents
a bridge guardrail Download PDFInfo
- Publication number
- CN215052082U CN215052082U CN202120452225.6U CN202120452225U CN215052082U CN 215052082 U CN215052082 U CN 215052082U CN 202120452225 U CN202120452225 U CN 202120452225U CN 215052082 U CN215052082 U CN 215052082U
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- bridge
- row
- stiffening rib
- guard rail
- wave
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- 239000003351 stiffener Substances 0.000 claims description 37
- 239000000126 substance Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 4
- 238000002407 reforming Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The application relates to the technical field of highway facilities, and discloses a bridge guardrail, and the purpose is through reforming transform the wave form roof beam guardrail to make it accord with bridge guardrail's protection demand. Bridge rail guard includes: a row of upright posts; the row of three-wave protection plates are arranged on one side of the row of stand columns facing the bridge pavement; two rows of two ripples guard plates set up respectively in the both sides of one row of stand, and are located the top of one row of three ripples guard plate. The bridge protection fence that this application embodiment provided, through the organic combination of three wave guard plates and two way two wave guard plates, can show the bulk rigidity that increases the guardrail, improve the protective capacities of guardrail greatly, can make protective energy promote to 520kJ from below 160kJ, reach six (SS, SSm) level protection level, can prevent effectively that oversize vehicle from passing through, turning over and striding the guardrail. Moreover, the bridge guard rail can be directly upgraded and transformed on the basis of the existing two-wave-shaped beam guard rail of the bridge, so that the construction difficulty and cost are reduced.
Description
Technical Field
The application relates to the technical field of highway facilities, in particular to a bridge protective fence.
Background
Along with the rapid development of economy, the protection demand of the expressway is higher and higher, and the transformation of the corrugated beam guardrail is more and more common. According to the existing design Specification for road traffic safety facilities (JTG D81), part of expressways are influenced by factors such as design speed, crossing of primary protection areas of highways, railways or drinking water sources, high proportion of trucks and the like, the protection grade of bridge guardrails can be selected to be six (SS, SSm) grades, and the protection energy is 520 kJ. The protection energy of the existing two-wave-shaped beam guardrail is below 160kJ, which is far from the protection energy of 520 kJ. When two waveform beam guardrails of an expressway bridge need to be modified and upgraded to six (SS, SSm) grades, the conventional method is to dismantle and abandon the original guardrails or treat the guardrails at low cost, and a new guardrail is arranged according to the structural form recommended by road traffic safety facility design rules (JTG/T D81). Because such highways are far in construction, the space in which the guardrail can be placed on the bridge may be limited, and the existing guardrail type may not be suitable for such bridges.
SUMMERY OF THE UTILITY MODEL
The application discloses bridge protection fence, the purpose is through reforming transform the wave form roof beam guardrail to make its protection demand that accords with bridge protection fence.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a bridge rail guard comprising:
a row of upright posts;
a row of three-wave protection plates are arranged on one side of the row of stand columns facing the bridge pavement;
two rows of two ripples guard plates set up respectively the both sides of one row of stand, and are located the top of one row of three ripples guard plate.
The embodiment of the application provides a bridge protection fence, adopt the structure of the half two string wave form roof beams of single-column, two wave guard plates of installation in stand top both sides, and in the aspect of under the stand to one side installation one three wave guard plate on bridge road surface, through the organic combination of three wave guard plate and two wave guard plates, can show the bulk rigidity that increases the guardrail, improve the protective capacities of guardrail greatly, can make protective energy promote to 520kJ from below the 160kJ, reach six (SS, SSm) level protection level, can effectively prevent that oversize vehicle from passing through, cross and straddle the guardrail. Moreover, the bridge guard rail can be directly upgraded and transformed on the basis of the existing two-wave-shaped beam guard rail of the bridge, so that the construction difficulty and cost are reduced.
Optionally, the bridge protection fence further comprises a row of flange bottom plates, and the row of flange bottom plates are fixed on the ground through chemical anchor bolts;
in the row of the upright columns, the bottom end of each upright column is connected to the flange bottom plate.
Optionally, the bridge protection fence further includes a first stiffening rib, a second stiffening rib, a third stiffening rib and a fourth stiffening rib connected between the upright and the flange bottom plate and disposed around the upright; the first stiffening rib is positioned on one side of the upright post facing the bridge pavement, and the second stiffening rib is positioned on one side of the upright post departing from the bridge pavement; the third stiffening rib and the fourth stiffening rib are positioned between the first stiffening rib and the second stiffening rib and are symmetrically arranged relative to the upright post;
along the extending direction of stand, the size of second stiffening rib is greater than the size of first stiffening rib, the size of third stiffening rib and fourth stiffening rib is greater than the size of first stiffening rib and is less than the size of second stiffening rib respectively.
Optionally, the third stiffener and the fourth stiffener have the same size in the extending direction of the column.
Optionally, the cross section of the upright post is square; the upright post comprises a first side surface, a second side surface, a third side surface and a fourth side surface, wherein the first side surface is opposite to the second side surface, and the third side surface is opposite to the fourth side surface;
the first stiffening rib and the second stiffening rib are connected with the first side surface and the second side surface respectively; the third stiffener and the fourth stiffener are connected to the third side and the fourth side, respectively.
Optionally, the bridge protection fence further comprises a first anti-blocking block; the three-wave protection plate is connected to the stand column through the first block, and at least two mounting holes are formed in the connection surfaces (used for two side surfaces connected with the stand column and the protection plate respectively) on two sides of the first block respectively along the extending direction of the stand column.
Optionally, the bridge protection fence further comprises a second anti-blocking block; the row of double-wave protection plates close to one side of the bridge pavement are connected to the stand columns through the second anti-blocking blocks, and the distance between the connecting surfaces on the two sides of the second anti-blocking blocks is equal to the distance between the connecting surfaces on the two sides of the first anti-blocking blocks; and the connecting surfaces at two sides of the second anti-blocking block are respectively provided with a mounting hole along the extending direction of the upright post.
Optionally, the bridge protection fence further includes a bolt for connecting the second block with the upright;
one row of the double-wave protection plates close to one side of the bridge pavement are connected with the stand columns through the bolts.
Optionally, a distance between the inside vertical surface and the outside vertical surface of the bridge protection fence (the width of the bridge protection fence) is less than 50 cm.
Optionally, in the row of columns, the interval between the columns is 2 m.
Drawings
Fig. 1 is a schematic cross-sectional structure view of a bridge protection fence according to an embodiment of the present application;
fig. 2 is a schematic structural view of an inner vertical surface of a bridge guard rail according to an embodiment of the present disclosure;
fig. 3 is a schematic top view of a bridge protection fence according to an embodiment of the present application;
fig. 4 is a schematic top view of a flange base plate, a column and a stiffener connecting structure in a bridge protection fence according to an embodiment of the present disclosure;
fig. 5 is a schematic side view of a flange base plate, a column and a stiffener connecting structure in a bridge protection fence according to an embodiment of the present disclosure;
fig. 6 is another schematic side view of a flange base plate, a column and a stiffener connecting structure in a bridge protection fence according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1 to 3, an embodiment of the present application provides a bridge protection fence, including:
a row of upright posts 1;
a row of three-wave protection plates 5 are arranged on one side of the row of upright posts 1 facing the bridge pavement;
two rows of double- wave protection plates 61 and 62 are respectively arranged on two sides of the row of upright posts 1 and are positioned above the row of three-wave protection plates 5.
The embodiment of the application provides a bridge protection fence, adopt the structure of the half two string wave form roof beams of single-column, at 1 top both sides installation twice protection plate 61 of stand, 62, and at 1 lower aspect of stand to one side installation one three wave protection plate 5 on bridge road surface, through the organic combination of three wave protection plate 5 and two wave protection plates 61, can show the bulk rigidity that increases the guardrail, improve the protective capacities of guardrail greatly, can make protective energy promote to 520kJ from below 160kJ, reach six (SS, SSm) level protection level, can prevent effectively that oversize vehicle from passing through, cross and straddle the guardrail. Moreover, the bridge guard rail can be directly upgraded and transformed on the basis of the existing two-wave-shaped beam guard rail of the bridge, so that the construction difficulty and cost are reduced.
In a specific embodiment, as shown in fig. 1 and 3, the bridge protection fence provided by the present application may further include a row of flange bases 2, and the row of flange bases 2 is fixed to the ground by chemical anchors 4.
Specifically, in a row of upright columns 1, the bottom end of each upright column 1 is connected to a flange bottom plate 2.
Further, as shown in fig. 4 to 6, the bridge guard rail provided by the present application may further include a first stiffening rib 31, a second stiffening rib 32, a third stiffening rib 33 and a fourth stiffening rib 34 connected between the upright post 1 and the flange base 2 and disposed around the upright post 1; as shown in fig. 1 and 4, the first stiffening rib 31 is located on one side of the upright post 1 facing the bridge pavement, and the second stiffening rib 32 is located on one side of the upright post 1 facing away from the bridge pavement; the third stiffener 33 and the fourth stiffener 34 are located between the first stiffener 31 and the second stiffener 32, and are symmetrically arranged with respect to the column 1.
Specifically, as shown in fig. 5 and 6, in the extending direction of the column 1, the dimension of the second stiffener 32 is greater than the dimension of the first stiffener 31, and the dimensions of the third stiffener 33 and the fourth stiffener 34 are greater than the dimension of the first stiffener 31 and less than the dimension of the second stiffener 32, respectively.
Illustratively, as shown in fig. 5, the dimensions of the third stiffener 33 and the fourth stiffener 34 are equal in the direction of extension of the column 1.
And a stiffening rib is arranged between the upright post 1 and the flange bottom plate 2, so that the overall rigidity of the bridge guard railing can be further enhanced. Moreover, because the stiffening ribs are different in height and have asymmetric structures, stress concentration cannot be caused at the easy-to-break surface of the top of each stiffening rib of the upright post 1, so that the upright post 1 can bear larger deformation and is not easy to break, and the protection capability of the bridge protection fence can be effectively improved.
In a particular embodiment, as shown in fig. 4, the upright 1 has a square cross-section; the upright post 1 comprises a first side, a second side, a third side and a fourth side, wherein the first side and the second side are opposite, and the third side and the fourth side are opposite.
Specifically, the first stiffener 31 and the second stiffener 32 are connected to the first side surface and the second side surface, respectively; the third stiffener 33 and the fourth stiffener 34 are connected to the third side and the fourth side, respectively.
Of course, the cross section of the column 1 is not limited to a square shape, and may be, for example, a circular shape. The number of the stiffeners is not limited to four, and for example, a pair of stiffeners may be provided on the third side and the fourth side of the column 1.
In a specific embodiment, as shown in fig. 5 and 6, each of the first stiffener 31, the second stiffener 32, the third stiffener 33, and the fourth stiffener 34 is a right-angled trapezoidal plate, and the right-angled edges of each stiffener (i.e., the first stiffener 31, the second stiffener 32, the third stiffener 33, and the fourth stiffener 34) are connected to the column 1, respectively, and the bottom edge of each stiffener is connected to the flange bottom 2, respectively.
Illustratively, the stiffening ribs are welded to the flange bottom plate 2 and the upright 1 respectively.
In a specific embodiment, as shown in fig. 1, the bridge protection fence of the present application may further include a first block 7; the three-wave protection plate 5 is connected to the upright post 1 through the first anti-blocking block 7.
Specifically, the two side connection surfaces of the first anti-blocking block 7 (namely, the two side surfaces connected with the stand column 1 and the three-wave protection plate 5 respectively) are provided with at least two mounting holes respectively along the extending direction of the stand column 1, and the mounting height can be adaptively adjusted by selectively using the mounting holes, so that the mounting height of the three-wave protection plate 5 on the stand column 1 can be adjusted.
In a specific embodiment, as shown in fig. 1 and 3, the bridge protection fence of the present application may further include a second block 8; a row of double wave protection plates 61 close to one side of the bridge pavement is connected to the upright post 1 through the second obstruction block 8.
Specifically, the distance between the two side connecting surfaces (i.e., the two side surfaces for connecting with the vertical column 1 and the double-wave protection plate 61, respectively) of the second anti-blocking block 8 is equal to the distance between the two side connecting surfaces of the first anti-blocking block 7, or the width of the second anti-blocking block 8 is equal to the width of the first anti-blocking block 7. Further, the surfaces of the three-wave shield plates 5 and the two-wave shield plates 61 on the side close to the bridge pavement can be made flush, that is, the inner vertical surfaces of the bridge guard rails can be made flush.
As shown in fig. 1, the second anti-blocking block 8 may have a smaller size than the first anti-blocking block 7 in the extending direction of the column 1. Specifically, the two side connecting surfaces of the second block 8 may be respectively provided with a mounting hole along the extending direction of the column 1.
In a specific embodiment, as shown in fig. 1, the bridge protection fence of the present application may further include a bolt 9 for connecting the second block 8 with the upright 1; specifically, a row of double-wave protection plates 62 on one side far away from the bridge pavement are connected with the upright posts 1 through the bolts 9, in other words, the row of double-wave protection plates 62 on one side far away from the bridge pavement and a row of double-wave protection plates 61 on one side close to the bridge pavement can be connected with the upright posts 1 through the same row of bolts 9; the difference is that a second anti-blocking block 8 is arranged between the row of double-wave protection plates 61 close to one side of the bridge pavement and the upright post 1.
In a specific embodiment, as shown in fig. 1, a distance D1 between an inside vertical surface and an outside vertical surface of the bridge protection fence provided in the embodiment of the present application is less than 50 cm.
In the embodiment of the application, 'inside elevation' is the surface of three wave guard plates and two wave guard plates that are close to bridge road surface one side, 'outside elevation' is the surface of two wave guard plates that are far away from bridge road surface one side, and the interval between inside elevation and the outside elevation is the width of whole bridge protection fence.
Specifically, the width of the bridge guard rail is less than 50cm, and the bridge guard rail is suitable for reconstruction of all highway guard rails.
In a specific embodiment, as shown in fig. 2, in the bridge protection fence provided in the embodiment of the present application, in a row of upright posts 1, a distance D2 between the upright posts 1 may be 2 m.
It should be noted that, in some embodiments of the present disclosure, the bridge protection fence may further include other structures, which may be determined according to practical needs, and the embodiments of the present disclosure are not limited thereto. In addition, the number and the size of each structure provided in relation to the embodiments of the present disclosure are not limited to the above embodiments, and the drawings in the present application are only examples of a specific embodiment, and are not intended to limit the number, the size, and the ratio of the structures of each part.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A bridge rail guard, characterized by comprising:
a row of upright posts;
a row of three-wave protection plates are arranged on one side of the row of stand columns facing the bridge pavement;
two rows of two ripples guard plates set up respectively the both sides of one row of stand, and are located the top of one row of three ripples guard plate.
2. The bridge guard rail of claim 1 further comprising a row of flange bottom plates, the row of flange bottom plates being secured to the ground by chemical anchors;
in the row of the upright columns, the bottom end of each upright column is connected to the flange bottom plate.
3. The bridge guard rail of claim 2 further comprising first, second, third and fourth stiffening ribs connected between the posts and the flange floor and disposed around the posts; wherein,
the first stiffening rib is positioned on one side of the upright post facing the bridge pavement, and the second stiffening rib is positioned on one side of the upright post departing from the bridge pavement; the third stiffening rib and the fourth stiffening rib are positioned between the first stiffening rib and the second stiffening rib and are symmetrically arranged relative to the upright post;
along the extending direction of stand, the size of second stiffening rib is greater than the size of first stiffening rib, the size of third stiffening rib and fourth stiffening rib is greater than the size of first stiffening rib and is less than the size of second stiffening rib respectively.
4. A bridge guard rail according to claim 3 wherein the third stiffening rib and the fourth stiffening rib are of equal size along the direction of extension of the posts.
5. The bridge guard rail of claim 3 wherein the posts are square in cross section; the upright post comprises a first side surface, a second side surface, a third side surface and a fourth side surface, wherein the first side surface is opposite to the second side surface, and the third side surface is opposite to the fourth side surface;
the first stiffening rib and the second stiffening rib are connected with the first side surface and the second side surface respectively; the third stiffener and the fourth stiffener are connected to the third side and the fourth side, respectively.
6. The bridge guard rail of any one of claims 1 to 5 further comprising a first stop block; the three-wave protection plate is connected to the stand column through the first block, and at least two mounting holes are formed in the connection surfaces on the two sides of the first block along the extending direction of the stand column respectively.
7. The bridge guard rail of claim 6 further comprising a second stop block; the row of double-wave protection plates close to one side of the bridge pavement are connected to the stand columns through the second anti-blocking blocks, and the distance between the connecting surfaces on the two sides of the second anti-blocking blocks is equal to the distance between the connecting surfaces on the two sides of the first anti-blocking blocks; and the connecting surfaces at two sides of the second anti-blocking block are respectively provided with a mounting hole along the extending direction of the upright post.
8. The bridge guard rail of claim 7 further comprising bolts for connecting the second stop block to the posts;
one row of the double-wave protection plates close to one side of the bridge pavement are connected with the stand columns through the bolts.
9. A bridge guard rail according to claim 7 or 8 wherein the spacing between the inboard and outboard facades of the bridge guard rail is less than 50 cm.
10. A bridge guard rail according to any one of claims 1 to 5 wherein the posts in the row of posts are spaced apart by a distance of 2 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120452225.6U CN215052082U (en) | 2021-03-02 | 2021-03-02 | a bridge guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120452225.6U CN215052082U (en) | 2021-03-02 | 2021-03-02 | a bridge guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215052082U true CN215052082U (en) | 2021-12-07 |
Family
ID=79254461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120452225.6U Expired - Fee Related CN215052082U (en) | 2021-03-02 | 2021-03-02 | a bridge guardrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215052082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116024893A (en) * | 2023-01-05 | 2023-04-28 | 湖南省高速公路集团有限公司 | Heightened bridge guardrail structure |
-
2021
- 2021-03-02 CN CN202120452225.6U patent/CN215052082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116024893A (en) * | 2023-01-05 | 2023-04-28 | 湖南省高速公路集团有限公司 | Heightened bridge guardrail structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |