CN108716185B - Top plate grouting connection prefabricated reinforced concrete side anti-collision guardrail - Google Patents
Top plate grouting connection prefabricated reinforced concrete side anti-collision guardrail Download PDFInfo
- Publication number
- CN108716185B CN108716185B CN201810780551.2A CN201810780551A CN108716185B CN 108716185 B CN108716185 B CN 108716185B CN 201810780551 A CN201810780551 A CN 201810780551A CN 108716185 B CN108716185 B CN 108716185B
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- CN
- China
- Prior art keywords
- prefabricated
- collision guardrail
- embedded
- steel bars
- connecting steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 6
- 239000004567 concrete Substances 0.000 claims abstract description 3
- 230000004888 barrier function Effects 0.000 claims description 30
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 8
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 4
- 238000009417 prefabrication Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011374 ultra-high-performance concrete Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
Abstract
The invention discloses a top plate grouting connection prefabricated reinforced concrete side anti-collision guardrail, which comprises a prefabricated anti-collision guardrail and a prefabricated main beam, wherein the prefabricated anti-collision guardrail is formed by prefabricating concrete, longitudinal steel bars, bending steel bars and connecting steel bars are embedded in the prefabricated anti-collision guardrail, the connecting steel bars extend outwards from the bottom of the prefabricated anti-collision guardrail, a metal corrugated pipe for the connecting steel bars to extend in is embedded in the prefabricated main beam, the prefabricated anti-collision guardrail is connected with the prefabricated main beam by pouring grouting material into the metal corrugated pipe, the prefabricated anti-collision guardrail and the prefabricated main beam are effectively connected into a whole, the on-site construction is convenient, the assembly degree is high, the anti-collision guardrail is suitable for industrial production and assembly construction, and the technical and economic benefits are obvious.
Description
Technical Field
The invention relates to the technical field of bridge construction structures, in particular to a top plate grouting connection prefabricated reinforced concrete side anti-collision guardrail.
Background
In recent years, the rapid and assembled green bridge construction concept has been developed, and the assembled bridge substructure, superstructure and accessory facilities have been developed rapidly. The anti-collision guardrail is an important component of a bridge, and the traditional reinforced concrete anti-collision guardrail is cast by adopting on-site die filling, so that a great amount of manpower and material resources are required to be spent for carrying out steel bar transportation, bending and on-site binding, the construction period and the cost are increased, and the pollution caused by on-site casting is large and does not meet the national requirement of developing green buildings.
Disclosure of Invention
The invention aims to solve the technical problem of providing the prefabricated reinforced concrete side anti-collision guardrail with a simple structure, simple and convenient construction and environment-friendly roof grouting connection.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a precast assembled reinforced concrete side anticollision barrier is connected in roof grout, includes precast anticollision barrier and precast girder, precast anticollision barrier comprises precast concrete prefabrication and has longitudinal reinforcement, bending bar and connecting bar in inside, the connecting bar outwards extends from precast anticollision barrier bottom and stretches out, pre-buried in the precast girder has the metal bellows that supplies the connecting bar to stretch into, through pouring into the grout material in order to link to each other precast anticollision barrier and precast girder to the metal bellows inside.
Preferably, stirrups are embedded around the periphery of the metal corrugated pipe in the prefabricated main beam.
Preferably, the connecting bar of the prefabricated crash barrier is divided into a stretching-in connecting bar and an embedded connecting bar, the prefabricated crash barrier is embedded with a connecting joint with the bottom surface flush with the bottom surface of the prefabricated crash barrier, the embedded connecting bar is embedded inside the prefabricated crash barrier and is fixedly connected with the connecting joint at the bottom, and the top of the stretching-in connecting bar is detachably connected with the connecting joint.
Preferably, the end part of the prefabricated girder extends upwards to form a stop block matched with the prefabricated crash barrier for positioning, and a mortar cushion layer is arranged between the prefabricated girder and the prefabricated crash barrier.
Preferably, the bottom of the prefabricated anti-collision guardrail is provided with a shear groove, the prefabricated main beam is provided with a shear key which is fixedly embedded with the shear groove, an epoxy resin adhesive layer is arranged between the prefabricated anti-collision guardrail and the prefabricated main beam, the bottom of the prefabricated anti-collision guardrail is provided with an adhesive outlet groove along the longitudinal interval, and the outer wall of the bottom of the prefabricated anti-collision guardrail is provided with a false joint.
Preferably, the PVC pipe is also pre-buried in the prefabricated crash barrier.
The beneficial effects are that:
(1) The connecting steel bars extend into the metal corrugated pipes embedded in the prefabricated main beams and are filled with ultra-high strength concrete, so that the prefabricated anti-collision guardrail and the prefabricated main beams can be effectively connected into a whole, the site construction is convenient, and the assembly degree is high;
(2) The connecting steel bars are divided into two sections, and are lengthened on site through the connecting joints, so that the prefabricated anti-collision guardrails are convenient to store and stack, and the mechanical connection can meet the force transmission requirement of the steel bars;
(3) The dog that prefabricated girder tip set up can effectively bear the horizontal force of prefabricated crash barrier, provides the possibility for the prefabrication of crash barrier.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a schematic cross-sectional view of a first embodiment of the present invention;
FIG. 2 is a schematic side view of a first embodiment of the present invention;
fig. 3 is a schematic structural view of a connecting bar according to a first embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a second embodiment of the present invention;
fig. 5 is a schematic cross-sectional structure of a second embodiment of the present invention with a glue outlet.
Detailed Description
Referring to fig. 1 to 5, the roof grouting connection prefabricated reinforced concrete side crash barrier of the present invention comprises a prefabricated crash barrier 20 and a prefabricated girder 10, wherein the prefabricated crash barrier 20 is formed by prefabricating concrete and internally pre-embedded with longitudinal steel bars 21, bending steel bars 22 and connecting steel bars 23, the longitudinal steel bars 21 are longitudinally arranged, the bending steel bars 22 are circumferentially arranged, the connecting steel bars 23 extend outwards from the bottom of the prefabricated crash barrier 20 for a section, metal bellows 11 are pre-embedded in the prefabricated girder 10 at positions corresponding to the connecting steel bars 23, and stirrups 12 are circumferentially arranged outside the metal bellows 11 to improve local stress.
During installation, firstly, a mortar cushion layer 30 is arranged at a corresponding position above the prefabricated girder 10, then the prefabricated anti-collision guardrail 20 is hoisted, the connecting steel bars 23 are inserted into the metal corrugated pipe 11, when the prefabricated girder 10 is in butt joint with the prefabricated anti-collision guardrail 20, the prefabricated anti-collision guardrail 20 does not completely cover the metal corrugated pipe 11, the top of the prefabricated anti-collision guardrail is provided with an opening, grouting materials are poured into the opening at the top of the metal corrugated pipe 11, the length of the connecting steel bars 23 inserted into the metal corrugated pipe 11 should meet the requirement of anchoring length, and UHPC materials are selected as the grouting materials.
The ends of the prefabricated main beams 10 extend upwards to form stop blocks 13 which are matched with the prefabricated crash barriers 20 to be positioned so as to resist the horizontal thrust of the prefabricated crash barriers 20. A drip line 14 is arranged below the end of the prefabricated girder 10, and steel bars are arranged in the drip line 14 according to the structure and prefabricated together with the prefabricated girder 10.
Preferably, the connecting steel bar 23 is divided into two sections of a connecting steel bar 231 and an embedded connecting steel bar 232, the prefabricated anti-collision guardrail 20 is embedded with a connecting joint 24 with the bottom surface flush with the bottom surface of the prefabricated anti-collision guardrail 20, the embedded connecting steel bar 232 is embedded inside the prefabricated anti-collision guardrail 20, the bottom of the embedded connecting steel bar 232 is fixedly connected with the connecting joint 24, the top of the embedded connecting steel bar 231 is detachably connected with the connecting joint 24, the two sections of the connecting steel bar 23 are preferably in threaded connection, storage and transportation after the prefabricated anti-collision guardrail 20 is prefabricated can be facilitated, during site construction, the embedded connecting steel bar 231 is connected to the connecting joint 24, the prefabricated anti-collision guardrail 20 is hoisted in place later, and grouting material is poured into the metal corrugated pipe 11.
Of course, in order to reduce the bridge floor width, the setting of the stop block 13 may be omitted, and the bottom of the prefabricated crash barrier 20 is provided with a shear groove 26 and a glue outlet groove 27, the glue outlet grooves 27 are longitudinally spaced apart, and accordingly, the prefabricated main beam 10 is provided with a shear key 15 in a caulking fit with the shear groove 26, and the water drip 14 is moved to the end of the prefabricated main beam 10. Glue joints are reserved on the bottom surface of the prefabricated anti-collision guardrail 20 and the top surface of the prefabricated main beam 10, and the glue joints are preferably 3mm.
When the anti-collision guardrail is installed, firstly, the top surface corresponding to the prefabricated girder 10 is uniformly coated with epoxy resin adhesive, the thickness of the epoxy resin adhesive is not less than 3mm, then, the prefabricated anti-collision guardrail 20 is hoisted, the shear groove 26 is aligned with the shear key 15, the epoxy resin adhesive is extruded by utilizing the dead weight of the prefabricated anti-collision guardrail 20 and the adhesive outlet groove 27, and the epoxy resin adhesive is solidified to form the epoxy resin adhesive layer 16. The outer wall of the bottom of the prefabricated crash barrier 20 is provided with a false seam 28, and the excessive epoxy resin adhesive overflowed along the false seam 28 after the epoxy resin adhesive is extruded out, so that the structure is more attractive.
Preferably, the PVC pipe 29 is further embedded in the prefabricated crash barrier 20, which facilitates the placement of wires such as a street lamp wire or a communication optical cable, and reduces the weight of the prefabricated crash barrier 20.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (5)
1. The utility model provides a roof grout connection prefabricated reinforced concrete side anticollision barrier which characterized in that: the anti-collision guardrail comprises a pre-fabricated anti-collision guardrail and a pre-fabricated main beam, wherein the pre-fabricated anti-collision guardrail is formed by prefabricating concrete and is internally pre-embedded with longitudinal steel bars, bending steel bars and connecting steel bars, the connecting steel bars extend outwards from the bottom of the pre-fabricated anti-collision guardrail, a metal corrugated pipe into which the connecting steel bars extend is pre-embedded in the pre-fabricated main beam, and the pre-fabricated anti-collision guardrail is connected with the pre-fabricated main beam by pouring grouting material into the metal corrugated pipe;
the connecting steel bars of the prefabricated anti-collision guardrail are divided into an extending connecting steel bar and an embedded connecting steel bar, the bottom surface of the prefabricated anti-collision guardrail is embedded with a connecting joint with the same level as the bottom surface of the prefabricated anti-collision guardrail, the embedded connecting steel bar is embedded in the prefabricated anti-collision guardrail, the bottom of the embedded connecting steel bar is fixedly connected with the connecting joint, and the top of the extending connecting steel bar is detachably connected with the connecting joint;
the bottom of the prefabricated anti-collision guardrail is provided with a shear groove, the prefabricated main beam is provided with a shear key which is fixedly embedded with the shear groove, an epoxy resin adhesive layer is arranged between the prefabricated anti-collision guardrail and the prefabricated main beam, and the bottom of the prefabricated anti-collision guardrail is provided with an adhesive outlet groove along the longitudinal interval.
2. The roof grouting connection prefabricated reinforced concrete side crash barrier of claim 1 wherein: stirrups are embedded around the periphery of the metal corrugated pipe in the prefabricated main beam.
3. The roof grouting connection prefabricated reinforced concrete side crash barrier of claim 1 wherein: the end part of the prefabricated girder extends upwards to form a stop block matched with the prefabricated anti-collision guardrail for positioning, and a mortar cushion layer is arranged between the prefabricated girder and the prefabricated anti-collision guardrail.
4. The roof grouting connection prefabricated reinforced concrete side crash barrier of claim 1 wherein: the outer wall of the bottom of the prefabricated anti-collision guardrail is provided with a false seam.
5. The roof grouting connection prefabricated reinforced concrete side crash barrier of claim 1 wherein: PVC pipe has still been pre-buried to prefabricated anticollision barrier inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810780551.2A CN108716185B (en) | 2018-07-16 | 2018-07-16 | Top plate grouting connection prefabricated reinforced concrete side anti-collision guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810780551.2A CN108716185B (en) | 2018-07-16 | 2018-07-16 | Top plate grouting connection prefabricated reinforced concrete side anti-collision guardrail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108716185A CN108716185A (en) | 2018-10-30 |
| CN108716185B true CN108716185B (en) | 2024-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810780551.2A Active CN108716185B (en) | 2018-07-16 | 2018-07-16 | Top plate grouting connection prefabricated reinforced concrete side anti-collision guardrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108716185B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747733A (en) * | 2019-10-28 | 2020-02-04 | 杭州昂创科技有限公司 | Construction method of ecological prefabricated anti-collision wall |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH108429A (en) * | 1996-06-19 | 1998-01-13 | Misawa Ceramic Chem Co Ltd | Structure of concrete protection fence and construction method therefor |
| JP2003213704A (en) * | 2002-01-17 | 2003-07-30 | Wako Concrete Kogyo Kk | Structure of soil retaining wall block |
| JP2005256352A (en) * | 2004-03-10 | 2005-09-22 | Wako Concrete Kogyo Kk | Guard-fence support made of reinforced concrete and its installation method |
| KR20060128805A (en) * | 2006-11-24 | 2006-12-14 | 전영총 | Pc structure for a falling of a bridge and manufacturing method thereof |
| KR20120066903A (en) * | 2010-12-15 | 2012-06-25 | 재단법인 포항산업과학연구원 | Guard fence for bridge |
| CN204570542U (en) * | 2015-07-03 | 2015-08-19 | 黄贺明 | A kind of traffic highway anticollision barrier wall |
| CN205954478U (en) * | 2016-08-18 | 2017-02-15 | 安徽省交通规划设计研究总院股份有限公司 | Assembled concrete barrier and adopt its bridge |
| CN107217598A (en) * | 2017-06-09 | 2017-09-29 | 福州大学 | A kind of construction method for improving concrete flexural beam bridge antidumping bearing capacity |
| CN207063153U (en) * | 2017-02-23 | 2018-03-02 | 华西能源工程有限公司 | A kind of sleeve grouting formula reinforced concrete precast assembling bean column node |
| CN207435896U (en) * | 2017-11-16 | 2018-06-01 | 王亚陆 | A kind of Collison fence for bridge of the plug-in planting groove of prefabricated |
| CN208830155U (en) * | 2018-07-16 | 2019-05-07 | 广州市市政工程设计研究总院有限公司 | A kind of top plate grouting connection prefabricated assembling type reinforced concrete side crashproof guardrail |
-
2018
- 2018-07-16 CN CN201810780551.2A patent/CN108716185B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH108429A (en) * | 1996-06-19 | 1998-01-13 | Misawa Ceramic Chem Co Ltd | Structure of concrete protection fence and construction method therefor |
| JP2003213704A (en) * | 2002-01-17 | 2003-07-30 | Wako Concrete Kogyo Kk | Structure of soil retaining wall block |
| JP2005256352A (en) * | 2004-03-10 | 2005-09-22 | Wako Concrete Kogyo Kk | Guard-fence support made of reinforced concrete and its installation method |
| KR20060128805A (en) * | 2006-11-24 | 2006-12-14 | 전영총 | Pc structure for a falling of a bridge and manufacturing method thereof |
| KR20120066903A (en) * | 2010-12-15 | 2012-06-25 | 재단법인 포항산업과학연구원 | Guard fence for bridge |
| CN204570542U (en) * | 2015-07-03 | 2015-08-19 | 黄贺明 | A kind of traffic highway anticollision barrier wall |
| CN205954478U (en) * | 2016-08-18 | 2017-02-15 | 安徽省交通规划设计研究总院股份有限公司 | Assembled concrete barrier and adopt its bridge |
| CN207063153U (en) * | 2017-02-23 | 2018-03-02 | 华西能源工程有限公司 | A kind of sleeve grouting formula reinforced concrete precast assembling bean column node |
| CN107217598A (en) * | 2017-06-09 | 2017-09-29 | 福州大学 | A kind of construction method for improving concrete flexural beam bridge antidumping bearing capacity |
| CN207435896U (en) * | 2017-11-16 | 2018-06-01 | 王亚陆 | A kind of Collison fence for bridge of the plug-in planting groove of prefabricated |
| CN208830155U (en) * | 2018-07-16 | 2019-05-07 | 广州市市政工程设计研究总院有限公司 | A kind of top plate grouting connection prefabricated assembling type reinforced concrete side crashproof guardrail |
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| Publication number | Publication date |
|---|---|
| CN108716185A (en) | 2018-10-30 |
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