CN208830153U - A kind of top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier - Google Patents
A kind of top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier Download PDFInfo
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- CN208830153U CN208830153U CN201821128548.4U CN201821128548U CN208830153U CN 208830153 U CN208830153 U CN 208830153U CN 201821128548 U CN201821128548 U CN 201821128548U CN 208830153 U CN208830153 U CN 208830153U
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- anticollision barrier
- prefabricated
- reinforcing bar
- frp tendons
- main beam
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Abstract
It is in the milk the utility model discloses a kind of top plate and connects prefabricated assembled FRP tendons material concrete center anticollision barrier, including prefabricated anticollision barrier and precast main beam, prefabricated anticollision barrier is constituted by concrete prefabricated and is embedded with FRP tendons material in inside, regular reinforcement, regular reinforcement includes that the guardrail stretched out from prefabricated anticollision barrier bottom connects reinforcing bar, the metal bellows protruded into for connection reinforcing bar is embedded in precast main beam, by to grouting material is perfused inside metal bellows so that prefabricated anticollision barrier to be connected with precast main beam, effectively prefabricated anticollision barrier is connect with precast main beam integral, site operation is convenient, assembling degree is high, and, using the stronger FRP tendons material of tensile capacity, the sectional dimension of guardrail can be effectively reduced, to mitigate guardrail self weight, be conducive to bridge lighting.
Description
Technical field
The utility model relates to bridge construction technical field of structures, in particular to a kind of top plate grouting connection is prefabricated assembled
FRP tendons material concrete center anticollision barrier.
Background technique
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, while the high intensity of fibre reinforced composites, high-durability make it in bridge
Application in structure is more and more wider.Anticollision barrier is the important component of bridge, and conventional steel bar concrete anticollision barrier is often adopted
With the binding of live reinforcing bar, it is die-filling pour, need to spend a large amount of manpower and material resources to carry out reinforcing bar transports, bending and scene and bind, increase
Construction period and cost, live reinforcing bar binding quality are difficult to control, and easily cause the guardrail thickness of protection tier to can not meet rule
Model requirement, so as to cause concrete surface cracking, the corrosion increased risk of internal reinforcing bar has seriously affected the durability of guardrail,
And cast in situs pollutes larger, does not meet the requirement of national development green building, in addition, traditional reinforcing bar anticollision barrier is cut
Face size is big, brings problem to bridge lighting.Assembled fibre reinforced composites concrete anti-collision guard bar set fibre
Dimension enhancing composite material and fabricated construction a little, have prefabricated, simple installation, the good feature of durability.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of structures simply, easy construction, environmentally protective top
Plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier.
Used technical solution to solve above-mentioned technical problem: a kind of top plate grouting connects prefabricated assembled FRP tendons material
Concrete center anticollision barrier, including prefabricated anticollision barrier and precast main beam, the prefabricated anticollision barrier is by concrete prefabricated structure
It is embedded with FRP tendons material and regular reinforcement at and inside, the FRP tendons material includes being separately positioned on prefabricated anticollision barrier or so two
The longitudinal rib material of side and the guardrail principal rod material parallel with slope surface and longitudinally spaced arrangement, the regular reinforcement include that guardrail connects
Connect reinforcing bar and guardrail structure reinforcing bar；The guardrail connection reinforcing bar is separately positioned at left and right sides of prefabricated anticollision barrier and puts down with slope surface
Row, one end extend into inside, and the other end is protruding from prefabricated anticollision barrier two sides of the bottom；The guardrail structure steel-bar arrangement
In prefabricated anticollision barrier bottom, both ends bend and bind with longitudinal rib material at the prefabricated anticollision barrier left and right sides and connect；
It is embedded in the precast main beam for the guardrail metal bellows that protrudes into of connection reinforcing bar and outside around stirrup is arranged, by gold
Belong to bellows interior perfusion grouting material so that prefabricated anticollision barrier to be connected with precast main beam.
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 glue groove.
Preferably, there is mortar bed between the precast main beam and prefabricated anticollision barrier.
Preferably, the guardrail connection reinforcing bar, which is divided into, protrudes into connection reinforcing bar and pre-buried connection reinforcing bar, the prefabricated anticollision shield
Column is embedded with the bottom surface jointing concordant with prefabricated anticollision barrier bottom surface, and the pre-buried connection reinforcing bar is embedded in prefabricated anticollision shield
Inside column and bottom is fixedly connected with jointing, described to protrude into connection reinforcing bar top and jointing detachable connection.
Preferably, pvc pipe is also embedded with inside the prefabricated anticollision barrier.
Preferably, the grouting material uses ultra high strength concrete.
The utility model has the advantages that
(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 of guardrail is reduced, to mitigate guardrail self weight, is conducive to bridge lighting, meanwhile, the corrosion resistance of FRP tendons material
It is good, the durability of guardrail is improved, and guardrail is built using assembled, provides guarantee to construction quality；
(2) reinforcing bar is connected by guardrail and protrudes into the metal bellows being embedded in inside precast main beam, and superhigh intensity is perfused
Prefabricated anticollision barrier, can also effectively connect integral by concrete with precast main beam, and site operation is convenient, assembling degree
It is high；
(3) connection reinforcing bar is divided into two sections, and carries out live spreading by jointing, convenient for the storage of prefabricated anticollision barrier
It stacks, and mechanical connection can meet steel bar force transfer needs；
(4) shear connector being arranged above precast main beam can effectively bear the horizontal force of prefabricated anticollision barrier, give anticollision barrier
Prefabricated provide possibility.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawings and examples；
Fig. 1 is the section structure diagram of the utility model first embodiment；
Fig. 2 is the section structure diagram go out in the utility model first embodiment with glue groove；
Fig. 3 is the side structure schematic diagram of the utility model first embodiment；
Fig. 4 is the section structure diagram of the utility model second embodiment.
Specific embodiment
Referring to figs. 1 to Fig. 4, the grouting of the utility model top plate connects prefabricated assembled FRP tendons material concrete center anticollision shield
Column, including prefabricated anticollision barrier 20 and precast main beam 10, prefabricated anticollision barrier 20 are made of and concrete prefabricated internal pre-buried
There are FRP tendons material 21 and regular reinforcement 22.
FRP tendons material 21 includes being separately positioned on prefabricated 20 left and right sides of anticollision barrier and the guardrail principal rod parallel with slope surface
The longitudinal rib material 212 of material 211 and longitudinally spaced arrangement, FRP tendons material 21 have higher intensity, and fatigue resistance and durability are more
It is good, it is contemplated that cost, preferably glass fiber-reinforced polymer.
Regular reinforcement 22 includes guardrail connection reinforcing bar 221 and guardrail structure reinforcing bar 222, and guardrail connects the setting of reinforcing bar 221 and exists
20 left and right sides of prefabricated anticollision barrier is simultaneously parallel with slope surface, and one end extends into inside, and the other end is from prefabricated 20 bottom of anticollision barrier
Portion two sides are protruding；Guardrail structure reinforcing bar 222 is arranged in prefabricated 20 bottom of anticollision barrier, and both ends are respectively at prefabricated anticollision barrier
It bends at 20 left and right sides and is bound with the longitudinal rib material 212 at the crooked place and connected.
The metal bellows 11 protruded into for guardrail connection reinforcing bar 221 is embedded in precast main beam 10, metal bellows 11 is
Flat pipe, outside around setting stirrup 12, to improve local pressure.
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.
Wherein, prefabricated 20 bottom of anticollision barrier is equipped with shearing slot 27, and prefabricated 20 bottom of anticollision barrier, which is additionally provided with to two sides, prolongs
That stretches goes out glue groove 28, out the longitudinally spaced arrangement of glue groove 28, 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 and shear connector 15.
When installation, epoxy resin jelly is uniformly smeared in the corresponding top surface of precast main beam 10 first, epoxy resin jelly is thick
Degree is not less than 3mm, and shearing slot 27 is simultaneously aligned by subsequent hoisting prefabricated anticollision barrier 20 with shear connector 15, and guardrail connects reinforcing bar 221
It is inserted into metal bellows 11, when precast main beam 10 is docked with prefabricated anticollision barrier 20, the endless all standing of prefabricated anticollision barrier 20
Metal bellows 11, so that its top has opening, at this point, using self weight and the glue groove 28 out of prefabricated anticollision barrier 20 by epoxy
Resin jelly squeezes out, and epoxy resin jelly is formed by curing epoxy glue layer 16.Then pass through 11 top opening of metal bellows
Grouting material is perfused, completes the connection of prefabricated anticollision barrier 20 and precast main beam 10, guardrail connects reinforcing bar 221 and is inserted into metal bellows
11 length should meet anchorage length requirement, and grouting material selects UHPC material.
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 of glue groove 28 out at this time.
Preferably, guardrail connection reinforcing bar 221 is divided to protrude into connection reinforcing bar 2211 and 2,212 two sections of connection reinforcing bar pre-buried, in advance
Anticollision barrier 20 processed is embedded with the bottom surface jointing 25 concordant with prefabricated 20 bottom surface of anticollision barrier, and pre-buried connection reinforcing bar 2212 is pre-
It is embedded in inside prefabricated anticollision barrier 20, and pre-buried 2212 bottom of connection reinforcing bar is fixedly connected with jointing 25, protrudes into connection steel
2211 top of muscle and 25 detachable connection of jointing, are preferably threaded, two sections of settings of connection reinforcing bar 24, Ke Yifang
Just the storage transport after the completion of prefabricated anticollision barrier 20 is prefabricated, when site operation.
Preferably, being also embedded with pvc pipe inside prefabricated anticollision barrier 20, street lamp electric wire or communications optical cable etc. can be convenient
The placement of wire rod, and mitigate the weight of prefabricated anticollision barrier 20.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
State embodiment, within the scope of knowledge possessed by those of ordinary skill in the art, can also do not depart from it is practical
Various changes can be made under the premise of novel objective.
Claims (7)
1. a kind of top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier, it is characterised in that: including prefabricated
Anticollision barrier and precast main beam, the prefabricated anticollision barrier are constituted by concrete prefabricated and are embedded with FRP tendons material and general in inside
Logical reinforcing bar, 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 include guardrail connection reinforcing bar and guardrail structure reinforcing bar；It is described
Guardrail connection reinforcing bar is separately positioned at left and right sides of prefabricated anticollision barrier and parallel with slope surface, and one end extends into inside, another
It holds protruding from prefabricated anticollision barrier two sides of the bottom；The guardrail structure steel-bar arrangement is at prefabricated anticollision barrier bottom, both ends
It bends and is bound with longitudinal rib material at the prefabricated anticollision barrier left and right sides and connect；It is embedded in the precast main beam for shield
The column metal bellows that protrudes into of connection reinforcing bar and outside around setting stirrup, by be perfused inside metal bellows grouting material with
Prefabricated anticollision barrier is connected with precast main beam.
2. top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier according to claim 1, special
Sign is: the prefabricated anticollision barrier bottom is equipped with shearing slot, and the precast main beam is equipped with the shearing with shearing slot build-in cooperation
Key.
3. top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier according to claim 2, special
Sign is: having epoxy glue layer, the prefabricated anticollision barrier bottom edge between the prefabricated anticollision barrier and precast main beam
Longitudinal gap is equipped with glue groove.
4. top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier according to claim 2, special
Sign is: having mortar bed between the precast main beam and prefabricated anticollision barrier.
5. top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier according to claim 1, special
Sign is: guardrail connection reinforcing bar, which is divided into, protrudes into connection reinforcing bar and pre-buried connection reinforcing bar, the prefabricated anticollision barrier are embedded with
The bottom surface jointing concordant with prefabricated anticollision barrier bottom surface, the pre-buried connection reinforcing bar be embedded in inside prefabricated anticollision barrier and
Bottom is fixedly connected with jointing, described to protrude into connection reinforcing bar top and jointing detachable connection.
6. top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier according to claim 1, special
Sign is: being also embedded with pvc pipe inside the prefabricated anticollision barrier.
7. top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier according to claim 1, special
Sign is: the grouting material uses ultra high strength concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821128548.4U CN208830153U (en) | 2018-07-16 | 2018-07-16 | A kind of top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821128548.4U CN208830153U (en) | 2018-07-16 | 2018-07-16 | A kind of top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier |
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| Publication Number | Publication Date |
|---|---|
| CN208830153U true CN208830153U (en) | 2019-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821128548.4U Active CN208830153U (en) | 2018-07-16 | 2018-07-16 | A kind of top plate grouting connection prefabricated assembled FRP tendons material concrete center anticollision barrier |
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| Country | Link |
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| CN (1) | CN208830153U (en) |
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2018
- 2018-07-16 CN CN201821128548.4U patent/CN208830153U/en active Active
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