CN108729349A - A kind of steel plate connection prefabricated assembled FRP tendons material concrete center anticollision barrier - Google Patents
A kind of steel plate connection prefabricated assembled FRP tendons material concrete center anticollision barrier Download PDFInfo
- Publication number
- CN108729349A CN108729349A CN201810780509.0A CN201810780509A CN108729349A CN 108729349 A CN108729349 A CN 108729349A CN 201810780509 A CN201810780509 A CN 201810780509A CN 108729349 A CN108729349 A CN 108729349A
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- CN
- China
- Prior art keywords
- anticollision barrier
- prefabricated
- steel
- embedded
- main beam
- 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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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 84
- 239000010959 steel Substances 0.000 title claims abstract description 84
- 230000004888 barrier function Effects 0.000 title claims abstract description 63
- 239000000463 material Substances 0.000 title claims abstract description 34
- 210000002435 tendon Anatomy 0.000 title claims abstract description 26
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 230000002787 reinforcement Effects 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 18
- 238000010008 shearing Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 5
- 235000015110 jellies Nutrition 0.000 description 5
- 239000008274 jelly Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000001681 protective effect Effects 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
- E01D2101/264—Concrete reinforced with glass fibres
-
- 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
-
- 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
- E01D2101/30—Metal
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 kind of steel plates to connect prefabricated assembled FRP tendons material concrete center anticollision barrier, including prefabricated anticollision barrier and precast main beam, the prefabricated anticollision barrier is constituted by concrete prefabricated and is embedded with FRP tendons material in inside, regular reinforcement and angle steel, angle steel is located at prefabricated anticollision barrier two bottom sides, precast main beam is pre-buried to have embedded bar and pre-embedded steel slab, by the way that reinforcing bar inside prefabricated anticollision barrier and angle steel are welded, and angle steel is welded with the prefabricated steel for being embedded in precast main beam, effectively prefabricated anticollision barrier can be connect with precast main beam integral, site operation is convenient, assembling degree is high, and, guardrail principal rod material uses the stronger FRP tendons material of tensile capacity, the sectional dimension of guardrail can be efficiently reduced, to mitigate guardrail dead weight, be conducive to bridge lighting.
Description
Technical field
The present invention relates to bridge construction technical field of structures, more particularly to a kind of steel plate connects prefabricated assembled FRP tendons material
Concrete center anticollision barrier.
Background technology
In recent years, rapid, assembling Green Bridges build theory and obtain significant progress, packaged type bridges lower junction
Structure, superstructure, affiliated facility are quickly grown.Anticollision barrier is the important component of bridge, conventional steel bar concrete anticollision
Guardrail binds frequently with live reinforcing bar, it is die-filling pour, the operations such as reinforcing bar transport, bending and scene are bound are time-consuming and laborious, increase
Construction period and cost, and quality in site is difficult to control, and is easily caused guardrail thickness of protection tier and be can not meet code requirement, from
And concrete surface is caused to crack, the corrosion increased risk of internal reinforcing bar has seriously affected the durability of guardrail, in addition, traditional
Reinforcing bar anticollision barrier sectional dimension is big, and secondary dead load is bigger than normal.Assembled FRP concrete center guardrail can reduce sectional dimension, subtract
Light secondary dead load, and can realize that the batch production of guardrail is prefabricated, prefabricated construction.
Invention content
Technical problem to be solved by the invention is to provide a kind of simple in structure, easy construction, environmentally protective steel plates to connect
Connect prefabricated assembled FRP tendons material concrete center anticollision barrier.
Used technical solution to solve above-mentioned technical problem：A kind of prefabricated assembled FRP tendons material coagulation of steel plate connection
Native center anticollision barrier, including prefabricated anticollision barrier and precast main beam, the prefabricated anticollision barrier are made of simultaneously concrete prefabricated
It is embedded with FRP tendons material, regular reinforcement and angle steel in inside, the FRP tendons material includes being separately positioned on prefabricated anticollision barrier or so
The longitudinal rib material of both sides and the guardrail principal rod material parallel with slope surface and longitudinally spaced arrangement, the regular reinforcement include guardrail
Distributing bar and welding auxiliary bar, the angle steel are located at end face at left and right sides of prefabricated anticollision barrier bottom；The guardrail structure
Steel-bar arrangement is in prefabricated anticollision barrier bottom, and both ends bending at left and right sides of prefabricated anticollision barrier extends up, with slope surface
It extends in parallel into internal；The welding auxiliary bar carries out two-sided welding with guardrail structure reinforcing bar, angle steel respectively, described prefabricated
Girder is pre-buried, and there is embedded bar and pre-embedded steel slab, the pre-embedded steel slab to be located at precast main beam top surface, the pre-embedded steel slab and angle
Steel is welded to connect so that prefabricated anticollision barrier to be connected with precast main beam.
Preferably, the angle steel is equipped with groove, is welded using groove welding between the angle steel and pre-embedded steel slab.
Preferably, junction steel plate, the junction steel plate and pre-embedded steel slab, angle steel are equipped between the pre-embedded steel slab and angle steel
Between connected by fillet weld.
Preferably, the prefabricated anticollision barrier bottom is equipped with shearing slot, and the precast main beam is equipped with matches with shearing slot build-in
The shear connector of conjunction.
Preferably, there is epoxy glue layer, the prefabricated anticollision shield between the prefabricated anticollision barrier and precast main beam
Column bottom is longitudinally spaced to be equipped with out glue groove.
Preferably, there is mortar bed between the precast main beam and prefabricated anticollision barrier.
Preferably, also it is embedded with pvc pipe inside the prefabricated anticollision barrier.
Advantageous effect：
(1) the guardrail principal rod material inside prefabricated anticollision barrier uses the stronger FRP tendons material of tensile capacity, can be effectively
The sectional dimension for reducing guardrail is conducive to bridge lighting to mitigate guardrail dead weight, meanwhile, the corrosion resistance of FRP tendons material
It is good, the durability of guardrail is improved, and guardrail is built using assembled, and guarantee is provided to construction quality；
(2) by welding reinforcing bar inside prefabricated anticollision barrier and angle steel, and by angle steel be embedded in the pre- of precast main beam
Prefabricated anticollision barrier, can effectively connect integral by steel plate processed welding with precast main beam, and site operation is convenient, assembling degree
It is high；
(3) angle steel is arranged groove and is welded using groove welding with pre-embedded steel slab, can reduce the dosage of angle steel and pre-embedded steel slab,
Improve anticollision barrier impact resistance simultaneously；
(4) shear connector being arranged above precast main beam can effectively bear the horizontal force of anticollision barrier.
Description of the drawings
The present invention is described further with reference to the accompanying drawings and examples；
Fig. 1 is the section structure diagram of first embodiment of the invention；
Fig. 2 is the partial enlargement structural representation of first embodiment of the invention；
Fig. 3 is the section structure diagram go out in first embodiment of the invention with glue groove；
Fig. 4 is the side structure schematic diagram of first embodiment of the invention；
Fig. 5 is the section structure diagram of second embodiment of the invention.
Specific implementation mode
Referring to figs. 1 to Fig. 5, steel plate of the present invention connects prefabricated assembled FRP tendons material concrete center anticollision barrier, including pre-
Anticollision barrier 20 processed and precast main beam 10, prefabricated anticollision barrier 20 are constituted by concrete prefabricated and are embedded with FRP tendons material in inside
21, regular reinforcement 22 and angle steel 23.
Wherein, FRP tendons material 21 includes being separately positioned on 20 left and right sides of prefabricated anticollision barrier and the guardrail parallel with slope surface
The longitudinal rib material 212 of principal rod material 211 and longitudinally spaced arrangement, FRP tendons material 21 have higher intensity, fatigue resistance with it is durable
Property is more preferable, it is contemplated that cost, preferably glass fiber-reinforced polymer.
Regular reinforcement 22 includes guardrail structure reinforcing bar 221 and welding auxiliary bar 222, and the setting of guardrail structure reinforcing bar 221 exists
20 bottom of prefabricated anticollision barrier, both ends respectively at 20 both sides of prefabricated anticollision barrier bending extend up, continue extend one section with
Slope surface is parallel and extends into inside prefabricated anticollision shield 20, and welding auxiliary bar 222 is used for guardrail structure reinforcing bar 221 and angle steel
23 are welded to connect, and angle steel 23 is located at meeting at left and right sides of 20 bottom of prefabricated anticollision barrier and hits end face, and the end face outside of angle steel 23 is naked
It exposes outside, 222 left and right sides of welding auxiliary bar carries out two-sided welding with guardrail structure reinforcing bar 221, angle steel 23 respectively.Certainly,
For convenience of element precast, angle steel 23 may be used thicker steel plate and replace, at this point it is possible to be not provided with welding auxiliary bar.
The sectional dimension of entire prefabricated anticollision barrier 20 can be according to FRP tendons material 21, the diameter of regular reinforcement 22, cloth
It sets spacing etc. suitably to be reduced, to mitigate the weight of prefabricated anticollision barrier 20, is convenient for prefabrication and lifting.
Precast main beam 10 is pre-buried, and there is embedded bar 11 and pre-embedded steel slab 12, embedded bar 11 to be embedded in precast main beam completely
Inside 10, and for ensure anchorage length by it to two lateral bends, pre-embedded steel slab 12 is located at 10 top surface of precast main beam.
Wherein, 20 bottom of prefabricated anticollision barrier is equipped with shearing slot 27, and 20 bottom of prefabricated anticollision barrier, which is additionally provided with to both sides, prolongs
That stretches goes out glue groove 28, goes out 28 longitudinally spaced arrangement of glue groove, and correspondingly, precast main beam 10 is equipped with and shearing 27 build-in of slot cooperation
Shear connector 15 is easy to lift positioning by shearing slot 27 with shear connector 15.
When installation, epoxy resin jelly is uniformly smeared in 10 corresponding top surface of precast main beam first, epoxy resin jelly is thick
Degree is not less than 3mm, and shearing slot 27 is simultaneously aligned, angle steel 23 and pre-embedded steel slab by subsequent hoisting prefabricated anticollision barrier 20 with shear connector 15
12 alignments, at this point, being squeezed out epoxy resin jelly with glue groove 28 is gone out using the dead weight of prefabricated anticollision barrier 20, epoxy resin jelly
It is formed by curing epoxy glue layer 16, subsequent diagonal steel 23 is welded to connect with pre-embedded steel slab 12, completes prefabricated anticollision barrier
20 with the connection of precast main beam 10.
To reduce installation difficulty, seam will be glued and be changed to splicing seams, splicing seams thickness is preferably 20mm, and by epoxy resin
Jelly is changed to cement mortar, to form mortar bed 17, cancels the setting for glue groove 28 at this time.
Preferably, in order to reduce the dosage of angle steel 23 and pre-embedded steel slab 12, while anticollision barrier impact resistance is improved,
Groove is set in angle steel 23 before lifting, is welded using groove welding between angle steel 23 and pre-embedded steel slab 12.In addition, pre-embedded steel slab 12 with
Multiple junction steel plates 25 can also be set between angle steel 23, pass through fillet welding between junction steel plate 25 and pre-embedded steel slab 12, angle steel 23
Seam connection.
Preferably, being also embedded with pvc pipe inside prefabricated anticollision barrier 20, street lamp electric wire or communications optical cable etc. can be facilitated
The placement of wire rod, and mitigate the weight of prefabricated anticollision barrier 20.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned embodiment party
Formula, the technical field those of ordinary skill within the scope of knowledge, can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (7)
1. a kind of steel plate connects prefabricated assembled FRP tendons material concrete center anticollision barrier, it is characterised in that：Including prefabricated anticollision
Guardrail and precast main beam, the prefabricated anticollision barrier are constituted by concrete prefabricated and are embedded with FRP tendons material, regular reinforcement in inside
And angle steel, the FRP tendons material include being separately positioned on the prefabricated anticollision barrier left and right sides and the guardrail principal rod parallel with slope surface
The longitudinal rib material of material and longitudinally spaced arrangement, the regular reinforcement includes guardrail structure reinforcing bar and welds auxiliary bar, described
Angle steel is located at end face at left and right sides of prefabricated anticollision barrier bottom；The guardrail structure steel-bar arrangement in prefabricated anticollision barrier bottom,
Both ends bending at left and right sides of prefabricated anticollision barrier extends up, and is extended in parallel into internal with slope surface；The welding is auxiliary
Reinforcing bar is helped to carry out two-sided welding with guardrail structure reinforcing bar, angle steel respectively, the precast main beam is pre-buried with embedded bar and pre-buried
Steel plate, the pre-embedded steel slab are located at precast main beam top surface, and the pre-embedded steel slab and angle steel are welded to connect with by prefabricated anticollision barrier
It is connected with precast main beam.
2. steel plate according to claim 1 connects prefabricated assembled FRP tendons material concrete center anticollision barrier, feature exists
In：The angle steel is equipped with groove, is welded using groove welding between the angle steel and pre-embedded steel slab.
3. steel plate according to claim 2 connects prefabricated assembled FRP tendons material concrete center anticollision barrier, feature exists
In：It is equipped with junction steel plate between the pre-embedded steel slab and angle steel, passes through fillet welding between the junction steel plate and pre-embedded steel slab, angle steel
Seam connection.
4. the steel plate according to any one of claim 1-3 connects prefabricated assembled FRP tendons material concrete center anticollision
Guardrail, it is characterised in that：The prefabricated anticollision barrier bottom is equipped with shearing slot, and the precast main beam is equipped with matches with shearing slot build-in
The shear connector of conjunction.
5. steel plate according to claim 4 connects prefabricated assembled FRP tendons material concrete center anticollision barrier, feature exists
In：There is epoxy glue layer, the prefabricated anticollision barrier bottom is along longitudinal direction between the prefabricated anticollision barrier and precast main beam
It is equipped at intervals with out glue groove.
6. steel plate according to claim 4 connects prefabricated assembled FRP tendons material concrete center anticollision barrier, feature exists
In：There is mortar bed between the precast main beam and prefabricated anticollision barrier.
7. steel plate according to claim 6 connects prefabricated assembled FRP tendons material concrete center anticollision barrier, feature exists
In：It is also embedded with pvc pipe inside the prefabricated anticollision barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810780509.0A CN108729349A (en) | 2018-07-16 | 2018-07-16 | A kind of steel plate connection prefabricated assembled FRP tendons material concrete center anticollision barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810780509.0A CN108729349A (en) | 2018-07-16 | 2018-07-16 | A kind of steel plate connection prefabricated assembled FRP tendons material concrete center anticollision barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108729349A true CN108729349A (en) | 2018-11-02 |
Family
ID=63926950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810780509.0A Withdrawn CN108729349A (en) | 2018-07-16 | 2018-07-16 | A kind of steel plate connection prefabricated assembled FRP tendons material concrete center anticollision barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108729349A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205931A (en) * | 2019-07-03 | 2019-09-06 | 广州市市政工程机械施工有限公司 | A kind of prefabricated assembled Collison fence for bridge |
| CN110820553A (en) * | 2019-10-30 | 2020-02-21 | 上海市政工程设计研究总院（集团）有限公司 | Combined prefabricated bridge guardrail |
-
2018
- 2018-07-16 CN CN201810780509.0A patent/CN108729349A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205931A (en) * | 2019-07-03 | 2019-09-06 | 广州市市政工程机械施工有限公司 | A kind of prefabricated assembled Collison fence for bridge |
| CN110820553A (en) * | 2019-10-30 | 2020-02-21 | 上海市政工程设计研究总院（集团）有限公司 | Combined prefabricated bridge guardrail |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181102 |
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| WW01 | Invention patent application withdrawn after publication |