CN114369999A - Hollow thin wall guardrail of prefabricated assembled of segment - Google Patents
Hollow thin wall guardrail of prefabricated assembled of segment Download PDFInfo
- Publication number
- CN114369999A CN114369999A CN202111641902.XA CN202111641902A CN114369999A CN 114369999 A CN114369999 A CN 114369999A CN 202111641902 A CN202111641902 A CN 202111641902A CN 114369999 A CN114369999 A CN 114369999A
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- China
- Prior art keywords
- panel
- guardrail
- impact face
- collision
- hollow thin
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- 239000004576 sand Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 2
- 230000011218 segmentation Effects 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000013016 damping Methods 0.000 abstract description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a segment prefabricated assembly type hollow thin-wall guardrail, which comprises a prefabricated impact face facing panel, a back plate and a top plate, wherein the bottom of the impact face facing panel is fixed on a bridge deck, longitudinal ribs and transverse ribs are uniformly distributed on the outer side surface of the impact face facing panel, the back plate is assembled on the outer side of the impact face facing panel, and the top plate is installed at the tops of the impact face facing panel and the back plate; and fine sand is filled in a cavity between the impact face panel and the back plate, so that the damping energy dissipation effect is achieved. The sectional prefabricated hollow thin-wall guardrail in the invention has the weight of only 1/4 of the conventional concrete guardrail; meanwhile, longitudinal ribs and transverse ribs are arranged on the collision-facing surface panel, so that the safety of the guardrail after the vehicle collides is fully ensured; each part of the guardrail adopts bolt connection to enable the guardrail to be assembled and installed quickly.
Description
Technical Field
The invention relates to the technical field of guardrails, in particular to a segmental prefabricated assembly type hollow thin-wall guardrail.
Background
The guardrail has the function of preventing the out-of-control vehicle from crossing the central separation zone or rushing out of the roadbed at the road sections at the two sides of the road, so that secondary accidents are avoided, and the out-of-control vehicle is protected to a certain extent.
The existing concrete guardrail is generally composed of an upper cross beam, a lower cross beam, guardrail columns and upright columns between the upper cross beam and the lower cross beam, except that the upright columns are prefabricated in a processing plant, the rest of the upright columns are all formed by casting in situ, the casting process is complicated, the construction period is long, and the assembly speed is slow.
In addition, the existing concrete guardrail has the problems of complicated replacing steps and long replacing time after being damaged by vehicle collision due to structural limitation.
Disclosure of Invention
The invention aims to provide a segmental prefabricated hollow thin-wall guardrail, which solves the problems in the prior art, has the characteristics of quick installation and replacement, and can fully ensure the safety of the guardrail after vehicle collision.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a segmental prefabricated assembly type hollow thin-wall guardrail, which comprises a collision-facing surface panel, a back plate and a top plate, wherein the collision-facing surface panel, the back plate and the top plate are prefabricated by adopting ultra-high performance concrete; and fine sand is filled in a cavity between the impact face panel and the back plate.
Preferably, the cross ribs on the outer side surface of the impact face panel are uniformly distributed from top to bottom along the radian of the impact face panel; the vertical edges of the longitudinal ribs on the outer side surface of the impact face facing panel are perpendicular to the bridge panel, and the inclined edges of the longitudinal ribs are matched with the radian of the impact face facing panel.
Preferably, a fixing edge extends outwards from the bottom of the longitudinal rib, and the bottom of the back plate is mounted on the fixing edge.
Preferably, a hidden groove matched with the longitudinal rib on the impact face panel is reserved on the back plate.
Preferably, the bottom of the impact surface facing panel is connected with the bridge panel through bolts.
Preferably, the back plates of two adjacent hollow thin-wall guardrails are installed by adopting thin-wall section steel matched with bolts.
Compared with the prior art, the invention has the following beneficial technical effects:
the sectional prefabricated hollow thin-wall guardrail in the invention has the weight of only 1/4 of the conventional concrete guardrail; meanwhile, longitudinal ribs and transverse ribs are arranged on the collision-facing surface panel, so that the safety of the guardrail after the vehicle collides is fully ensured; each part of the guardrail adopts bolt connection to enable the guardrail to be assembled and installed quickly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a segmental prefabricated hollow thin-wall guardrail;
FIG. 2 is a disassembled view of a segment prefabricated hollow thin-wall guardrail;
FIG. 3 is a schematic structural view of a head-on panel;
FIG. 4 is a schematic structural diagram of a back plate;
wherein, 1 is a panel facing the collision surface; 2, a top plate; 3 a back plate; 4, matching the thin-wall section steel with the bolt; 5, transverse ribs; 6 longitudinal ribs; 7 dark groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
The invention aims to provide a segmental prefabricated hollow thin-wall guardrail, which solves the problems in the prior art, has the characteristics of quick installation and replacement, and can fully ensure the safety of the guardrail after vehicle collision.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-4, the present embodiment provides a segmental prefabricated assembly type hollow thin-wall guardrail, including a prefabricated impact face panel 1, a back plate 3 and a top plate 2, wherein the bottom of the impact face panel 1 is fixed on a bridge deck, longitudinal ribs 6 and transverse ribs 5 are uniformly distributed on the outer side surface of the impact face panel 1, the back plate 3 is assembled on the outer side of the impact face panel 1, and the top plate 2 is installed on the tops of the impact face panel 1 and the back plate 3; and fine sand is filled in a cavity between the impact face panel 1 and the back plate 3. The longitudinal ribs 6 and the transverse ribs 5 are adopted to replace steel bars inside the traditional concrete guardrail, so that the interior of the segmental prefabricated hollow thin-wall guardrail is free of ribs, and the safety of the guardrail after vehicle impact is ensured; the sand is poured into the guardrail, so that the weight of the hollow concrete is guaranteed, the guardrail after the vehicle is impacted is safe, the internal sand has the function of damping energy consumption, and the energy dissipation effect is realized in the vehicle impact process.
In the embodiment, in order to ensure that the force of the impact face panel 1 is uniform, the cross ribs 5 on the outer side surface of the impact face panel 1 are uniformly distributed from top to bottom along the radian of the impact face panel 1; the vertical edge of the longitudinal rib 6 on the outer side surface of the impact face facing panel 1 is perpendicular to the bridge panel, and the oblique edge of the longitudinal rib 6 is matched with the radian of the impact face facing panel 1.
In order to ensure the stability of the installation of the backboard 3, in the embodiment, the bottom of the longitudinal rib 6 extends outwards to form a fixed edge, and the bottom of the backboard 3 is installed on the fixed edge; a hidden groove 7 matched with the longitudinal rib 6 on the impact face panel 1 is reserved on the back plate 3.
In order to facilitate quick installation and disassembly, the bottom of the impact face panel 1 is connected with the bridge deck panel through bolts, and the back plates 3 of two adjacent hollow thin-wall guardrails are installed through thin-wall section steel matched with the bolts 4. The hollow thin wall guardrail of prefabricated assembled of festival section adopts vertical and vertically all to adopt bolted connection, and backplate 3 can be opened simultaneously, hits the damage back at the guardrail, dismantles 3 outflow sands of backplate through the bolt, carries out quick replacement.
The segmental prefabricated hollow thin-wall guardrail has the following characteristics:
1. the weight of the hollow thin wall is only 1/4 of the weight of the conventional concrete guardrail; meanwhile, the longitudinal ribs 6 and the transverse ribs 5 are arranged on the collision-facing panel 1, so that the safety of the guardrail after the vehicle collides is fully ensured;
2. the guardrail structure is divided into a collision face facing panel 1, a back plate 3 and a top plate 2, wherein a blind groove 7 is reserved on the back plate 3 and is matched with a longitudinal rib 6 of the collision face facing panel 1 for installation, and after the back plate 3 and the collision face facing panel 1 are installed, a cavity is reserved on the guardrail, fine sand is filled in the cavity, so that the weight of the guardrail is increased, and the collision resistance of the thin-wall guardrail is ensured; once the guardrail needs to be replaced, the back plate is opened, fine sand flows out, and the damaged guardrail section is replaced quickly;
3. the guardrail is prefabricated, assembled and installed, the bottom of the guardrail is connected with the bridge deck by bolts, the longitudinal sections of the guardrail are installed by thin-wall section steel matched with the bolts 4, and the guardrail can be quickly assembled and installed by adopting the bolt connection; meanwhile, the thin-wall section steel is matched with the bolt 4 for connection, so that the longitudinal guardrail sections are integrally stressed, and the longitudinal joint is prevented from cracking.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. The utility model provides a hollow thin wall guardrail of prefabricated assembled of segmentation which characterized in that: the bridge deck is characterized by comprising a collision-facing surface panel, a back plate and a top plate, wherein the collision-facing surface panel is prefabricated by adopting ultra-high performance concrete, the bottom of the collision-facing surface panel is fixed on a bridge deck, longitudinal ribs and transverse ribs are uniformly distributed on the outer side surface of the collision-facing surface panel, the back plate is assembled on the outer side of the collision-facing surface panel, and the top plate is installed at the tops of the collision-facing surface panel and the back plate; and fine sand is filled in a cavity between the impact face panel and the back plate.
2. The segmental prefabricated hollow thin-walled guardrail of claim 1, characterized in that: the transverse ribs on the outer side surface of the impact face panel are uniformly distributed from top to bottom along the radian of the impact face panel; the vertical edges of the longitudinal ribs on the outer side surface of the impact face facing panel are perpendicular to the bridge panel, and the inclined edges of the longitudinal ribs are matched with the radian of the impact face facing panel.
3. The segmental prefabricated hollow thin-walled guardrail of claim 2, wherein: and fixing edges extend outwards from the bottoms of the longitudinal ribs, and the bottoms of the back plates are arranged on the fixing edges.
4. The segmental prefabricated hollow thin-walled guardrail of claim 2, wherein: and a hidden groove matched with the longitudinal rib on the collision face facing panel is reserved on the back plate.
5. The segmental prefabricated hollow thin-walled guardrail of claim 1, characterized in that: the bottom of the collision-facing surface panel is connected with the bridge panel through bolts.
6. The segmental prefabricated hollow thin-walled guardrail of claim 1, characterized in that: the back plates of two adjacent hollow thin-wall guardrails are installed by adopting thin-wall section steel matched with bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641902.XA CN114369999B (en) | 2021-12-29 | Segment prefabricated assembly type hollow thin-wall guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641902.XA CN114369999B (en) | 2021-12-29 | Segment prefabricated assembly type hollow thin-wall guardrail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114369999A true CN114369999A (en) | 2022-04-19 |
| CN114369999B CN114369999B (en) | 2024-05-31 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012144908A (en) * | 2011-01-12 | 2012-08-02 | Sumitomo Rubber Ind Ltd | Guardrail buffer and guardrail fitted with the buffer |
| JP2013155519A (en) * | 2012-01-30 | 2013-08-15 | Kameda Gumi Co Ltd | Mold form of wall balustrade |
| CN208219399U (en) * | 2018-03-16 | 2018-12-11 | 广州市市政工程设计研究总院 | A kind of prefabricated assembled Collison fence for bridge of high-strength light |
| CN210636352U (en) * | 2019-08-16 | 2020-05-29 | 厦门中平公路勘察设计院有限公司 | Prefabricated anti-collision guardrail |
| CN211312194U (en) * | 2019-11-26 | 2020-08-21 | 浙江宏日泰耐克新材料科技有限公司 | Prefabricated assembled UHPC hollow anti-collision guardrail component |
| CN211645993U (en) * | 2019-12-18 | 2020-10-09 | 中交第一航务工程局有限公司 | Assembled bridge deck and steel trestle comprising same |
| CN112726398A (en) * | 2020-12-28 | 2021-04-30 | 北京市市政专业设计院股份公司 | Assembled anticollision barrier |
| CN214116308U (en) * | 2020-12-22 | 2021-09-03 | 河南宏建机械模板材料有限公司 | Panel reinforcing anticollision wall template |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012144908A (en) * | 2011-01-12 | 2012-08-02 | Sumitomo Rubber Ind Ltd | Guardrail buffer and guardrail fitted with the buffer |
| JP2013155519A (en) * | 2012-01-30 | 2013-08-15 | Kameda Gumi Co Ltd | Mold form of wall balustrade |
| CN208219399U (en) * | 2018-03-16 | 2018-12-11 | 广州市市政工程设计研究总院 | A kind of prefabricated assembled Collison fence for bridge of high-strength light |
| CN210636352U (en) * | 2019-08-16 | 2020-05-29 | 厦门中平公路勘察设计院有限公司 | Prefabricated anti-collision guardrail |
| CN211312194U (en) * | 2019-11-26 | 2020-08-21 | 浙江宏日泰耐克新材料科技有限公司 | Prefabricated assembled UHPC hollow anti-collision guardrail component |
| CN211645993U (en) * | 2019-12-18 | 2020-10-09 | 中交第一航务工程局有限公司 | Assembled bridge deck and steel trestle comprising same |
| CN214116308U (en) * | 2020-12-22 | 2021-09-03 | 河南宏建机械模板材料有限公司 | Panel reinforcing anticollision wall template |
| CN112726398A (en) * | 2020-12-28 | 2021-04-30 | 北京市市政专业设计院股份公司 | Assembled anticollision barrier |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Zhiyong Inventor after: Wang Songlin Inventor after: Shi Xinlei Inventor after: Hong Lujia Inventor after: Chen Mengchong Inventor after: Zheng Xiaoying Inventor after: Peng Yao Inventor before: Li Zhiyong Inventor before: Shi Xinlei Inventor before: Hong Lujia Inventor before: Wang Songlin Inventor before: Chen Mengchong Inventor before: Zheng Xiaoying Inventor before: Peng Yao |
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| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant |