CN108755403A - A kind of prefabricated assembled centers UHPC anticollision barrier grouting connecting structure - Google Patents
A kind of prefabricated assembled centers UHPC anticollision barrier grouting connecting structure Download PDFInfo
- Publication number
- CN108755403A CN108755403A CN201810782571.3A CN201810782571A CN108755403A CN 108755403 A CN108755403 A CN 108755403A CN 201810782571 A CN201810782571 A CN 201810782571A CN 108755403 A CN108755403 A CN 108755403A
- Authority
- CN
- China
- Prior art keywords
- uhpc
- anticollision
- grout sleeve
- centers
- connecting structure
- 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.)
- Withdrawn
Links
- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 65
- 230000004888 barrier function Effects 0.000 title claims abstract description 64
- 239000011440 grout Substances 0.000 claims abstract description 65
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 235000013336 milk Nutrition 0.000 claims description 14
- 239000008267 milk Substances 0.000 claims description 14
- 210000004080 milk Anatomy 0.000 claims description 14
- 238000010008 shearing Methods 0.000 claims description 9
- 230000010412 perfusion Effects 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 4
- 235000015110 jellies Nutrition 0.000 description 4
- 239000008274 jelly Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 235000019698 starch Nutrition 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of prefabricated assembled centers UHPC anticollision barrier grouting connecting structure,Include girder top plate and UHPC anticollision barriers with connection reinforcing bar,It is embedded with grout sleeve respectively at left and right sides of UHPC anticollision barriers bottom internal,The inner wall at least three inside shear connectors of longitudinally spaced distribution of grout sleeve,The outer wall of grout sleeve is longitudinally spaced to be distributed with external shear key corresponding with internal shear connector,Grout sleeve has is inserted into the indoor opening of filling cavity for connection reinforcing bar,The grout outlet that grout sleeve has underlying grouting mouth and is located above,By the way that grouting material is perfused into filling cavity room so that UHPC anticollision barriers to be connected with girder top plate,The connection of grout sleeve and UHPC anticollision barriers is realized by the way that external shear key is arranged,And pass through internal shear connector,Connect reinforcing bar,The synergistic effect of grouting material,Grout sleeve and girder top plate are linked to be entirety,Avoid the embedded bar inside UHPC anticollision barriers,Facilitate the prefabricated of UHPC anticollision barriers.
Description
Technical field
The present invention relates to bridge construction technical field of structures, more particularly to a kind of prefabricated assembled centers UHPC anticollision barrier
Be in the milk connecting structure.
Background technology
In recent years, China actively seek and enrich the interference of rapid, low road, mute green construction mode, energetically
Fabricated construction is advocated, and tries to explore application of the new material in assembled architecture.Anticollision barrier is the important set of bridge
At part, UHPC anticollision barrier simple structures than traditional solid armored concrete anticollision barrier weight saving about 65%, and are tied
Structure has ultra-tough, with the obvious advantage, but existing assembled UHPC anticollision barriers by bed bolt and are embedded in wing plate
Connect reinforcing bar and realize connection, when construction worker need to roll over to anticollision barrier rear carry out bolt apply it is stubborn, it is complicated for operation and dangerous
Degree is high, therefore it is necessary to research and develop suitable for the novel connection of UHPC anticollision barriers.
Invention content
Technical problem to be solved by the invention is to provide a kind of simple structure, easy construction prefabricated assembled UHPC in
Entreat anticollision barrier grouting connecting structure.
Used technical solution to solve above-mentioned technical problem：A kind of prefabricated assembled centers UHPC anticollision barrier grouting
Connecting structure, including girder top plate and UHPC anticollision barriers, the UHPC anticollision barriers bottom left and right sides are embedded with filling respectively
Sleeve is starched, forms perfusion chamber inside the grout sleeve, the inner wall of the grout sleeve is longitudinally spaced to be distributed at least three
Internal shear connector, the outer wall of the grout sleeve is longitudinally spaced to be distributed with external shear key corresponding with internal shear connector, institute
Stating grout sleeve has the opening that UHPC anticollision barriers bottom is inserted into filling cavity room and be in for connection reinforcing bar, grout sleeve
With underlying grouting mouth and the grout outlet being located above, the girder top plate, which has, to be each extended over stretching and is inserted through being open
Enter the connection reinforcing bar in half grout sleeve, by the way that grouting material is perfused into filling cavity room with by UHPC anticollision barriers and girder top plate
It is connected.
Preferably, UHPC anticollision barriers bottom is equipped with shearing slot, and the girder top plate is equipped with matches with shearing slot build-in
The shear connector of conjunction.
Preferably, there is epoxy glue layer, the UHPC anticollisions shield between the UHPC anticollision barriers and girder top plate
Column bottom is longitudinally spaced to be equipped with out glue groove.
Preferably, the UHPC anticollision barriers are made of side plate, top plate and bottom plate and floor, and the side plate bottom locally adds
Thick structure is embedded into advance for grout sleeve.
Preferably, the opening direction of the grout outlet is towards the inside of side plate, and the opening direction of the grouting mouth is towards side
The outside of plate.
Preferably, the pre-buried position of the grout sleeve and the aligned in position where floor, the pulp of the grout sleeve
There are 45 ° of angles between mouth and floor.
Preferably, the oval ring-type of the external shear key, the ellipse short shaft axis and UHPC of the external shear key
The axis of anticollision barrier is vertical.
Preferably, the length that the connection reinforcing bar stretches into perfusion chamber is not less than 9 times of connection bar diameter.
Preferably, the internal shear connector is in same position with external shear key in longitudinal direction.
Preferably, the grout sleeve is cast by spheroidal graphite cast-iron forms or is formed by structural alloy steel machining.
Advantageous effect：
(1) the pre-buried grout sleeve inside UHPC anticollision barriers, by be arranged external shear key realize grout sleeve with
The connection of UHPC anticollision barriers, and by the synergistic effect of internal shear connector, connection reinforcing bar, grouting material, by grout sleeve and master
Back plate is linked to be entirety, avoids the embedded bar inside UHPC anticollision barriers, facilitates the prefabricated of UHPC anticollision barriers, more
It is produced suitable for industrial flow-line；
(2) shear connector being arranged above precast main beam top plate can effectively bear the horizontal force of central anticollision barrier, to center
The prefabricated of anticollision barrier provides possibility；
(3) grouting mouth, which is directed toward on the outside of side plate, can facilitate site operation, and the later stage can hide its trace by deck paving, go out
It starches mouth and is directed toward side plate interior sides, can avoid visual impact of the surface grout to UHPC anticollision barriers.
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 the embodiment of the present invention；
Fig. 2 is another section structure diagram of the embodiment of the present invention；
Fig. 3 is the side structure schematic diagram of the embodiment of the present invention；
Fig. 4 is the schematic cross-section of grout sleeve in the embodiment of the present invention；
Fig. 5 is the schematic cross-section of another angle of grout sleeve in the embodiment of the present invention.
Specific implementation mode
Referring to figs. 1 to Fig. 5, the prefabricated assembled centers UHPC of the invention anticollision barrier grouting connecting structure, including girder top
Plate 10 and UHPC anticollision barriers 20, girder top plate 10, which stretches out, has connection reinforcing bar 11, at left and right sides of 20 bottom of UHPC anticollision barriers
Inside is embedded with grout sleeve 30, and 30 inner hollow of grout sleeve has perfusion chamber 31, and the bottom of grout sleeve 30, which has, opens
Mouth 32, when grout sleeve 30 is embedded in UHPC anticollision barriers 20, opening 32 and the UHPC anticollision barriers 20 of grout sleeve 30
Bottom wall surface is concordant, and opening 32 is inserted into for connection reinforcing bar 11 inside perfusion chamber 31, and connection reinforcing bar 11 stretches into perfusion chamber 31
Length not less than connection 9 times of bar diameter, the longitudinally spaced at least three inside shearing of distribution of inner wall of grout sleeve 30
Key 33, particular number are chosen according to connection 11 built-in length of reinforcing bar, the longitudinally spaced distribution of outer wall of grout sleeve 30
There is the external shear key 34 that same position is in internal shear connector 33, the extension elongation and thickness of external shear key 34 are according to even
The selection of 11 built-in length of reinforcing bar is connect, quantity is identical as internal shear connector.Preferably, 34 oval ring-type of external shear key,
The ellipse short shaft axis of external shear key 34 is vertical with the axis of UHPC anticollision barriers.Grout sleeve 30 has underlying filling
Slurry mouth 35 and the grout outlet 36 being located above, grouting material are poured by grouting mouth 35, are stopped after the spilling of grout outlet 36 after grouting material
Girder top plate 10 is connected by grouting after grouting material solidification by connecting reinforcing bar 11 and grout sleeve 30 with UHPC anticollision barriers 20
Form one.
Wherein, UHPC anticollision barriers 20 are made of side plate 21, top plate 22, bottom plate 23 and floor 24, and pass through side plate 21, top
Plate 22, bottom plate 23 and floor 24 form hatch frame, are embedded into advance for the ease of grout sleeve 30, side plate 21 and 24 bottom of floor
Contact area has local structure thicker.
Shearing slot 25 is equipped among 20 bottom of UHPC anticollision barriers, correspondingly, girder top plate 10 is equipped with embedding with shearing slot 25
Admittedly the shear connector 12 coordinated is easy to lift positioning by shearing slot 25 with shear connector 12,20 bottom of UHPC anticollision barriers is additionally provided with
Go out glue groove 26 to what both sides extended, go out 26 longitudinally spaced arrangement of glue groove, when installation, first in 10 corresponding top surface of girder top plate
Epoxy resin jelly is uniformly smeared, epoxy resin jelly thickness is not less than 3mm, and subsequent lifting UHPC anticollision barriers 20 simultaneously will shearing
Slot 25 is aligned with shear connector 12, is squeezed out epoxy resin jelly with glue groove 26 is gone out using the dead weight of UHPC anticollision barriers 20, then
It should meet anchor to grouting material, the length that connection reinforcing bar 11 is inserted into grout sleeve 30 are perfused inside grout sleeve 30 by being in the milk mouth 35
Gu length requirement stoppers grouting mouth 35 and grout outlet 36 with rubber stopper after grouting material is from the spilling of grout outlet 36, it is anti-to complete UHPC
Hit the connection of guardrail 20 and girder top plate 10, wherein epoxy resin jelly is formed by curing epoxy glue layer 13.
Preferably, the opening direction of grout outlet 36 towards the inside of side plate 21, is in the milk, the opening direction of mouth 35 is towards side
The outside of plate 21, it is possible to reduce pulp discharge surface grout improves UHPC anticollisions to the visual impact of UHPC anticollision barriers when grouting
The whole simple and beautiful of guardrail 20.Further, since aligned in position of the pre-buried position of grout sleeve 30 where with floor 24, is
The length for reducing grout outlet 36 has 45 ° of angles between the grout outlet 36 and floor 24 of grout sleeve 30.
Preferably, grout sleeve 30 is processed and to be formed by casting formation or machine cut, and when using Foundry Production, material
Spheroidal graphite cast-iron is selected, when being produced using mechanical processing, material selection meets the steel of joint geometry examination requirements, as low-alloy is rigid
Strength structure steel, structural alloy steel etc..Grouting material is adopted using good fluidity, early strong, microdilatancy high-strength slurry, connection reinforcing bar 11
Use Ribbed Bar.
Wherein, it is to adapt to abnormity UHPC components, the external shear key 34 of grout sleeve 30, be in the milk mouth 35 and grout outlet 36
Position, angle etc. can accordingly be optimized according to the section form of UHPC components.
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 (10)
- The connecting structure 1. a kind of prefabricated assembled centers UHPC anticollision barrier is in the milk, it is characterised in that：Including girder top plate and UHPC anticollision barriers, are embedded with grout sleeve at left and right sides of UHPC anticollision barriers bottom respectively, inside the grout sleeve Form perfusion chamber, the inner wall at least three inside shear connectors of longitudinally spaced distribution of the grout sleeve, the grout sleeve Outer wall it is longitudinally spaced external shear key corresponding with internal shear connector is distributed with, the grout sleeve has for connecting reinforcing bar It is inserted into filling cavity room and the opening in UHPC anticollision barriers bottom, grout sleeve has underlying grouting mouth and position Grout outlet in top, the girder top plate, which has to each extend over, to be stretched out and is inserted into the connection steel in half grout sleeve through opening Muscle, by the way that grouting material is perfused into filling cavity room so that UHPC anticollision barriers to be connected with girder top plate.
- The connecting structure 2. the prefabricated assembled centers UHPC anticollision barrier according to claim 1 is in the milk, it is characterised in that：Institute It states UHPC anticollision barriers bottom and is equipped with shearing slot, the girder top plate is equipped with the shear connector with shearing slot build-in cooperation.
- The connecting structure 3. the prefabricated assembled centers UHPC anticollision barrier according to claim 2 is in the milk, it is characterised in that：Institute Stating has epoxy glue layer between UHPC anticollision barriers and girder top plate, UHPC anticollision barriers bottom is longitudinally spaced to be set There is glue groove.
- The connecting structure 4. the prefabricated assembled centers the UHPC anticollision barrier according to any one of claim 1-3 is in the milk, It is characterized in that：The UHPC anticollision barriers are made of side plate, top plate and bottom plate and floor, and the side plate bottom locally thickeies knot Structure is embedded into advance for grout sleeve.
- The connecting structure 5. the prefabricated assembled centers UHPC anticollision barrier according to claim 4 is in the milk, it is characterised in that：Institute The opening direction of grout outlet is stated towards the inside of side plate, the opening direction of the grouting mouth is towards the outside of side plate.
- The connecting structure 6. the prefabricated assembled centers UHPC anticollision barrier according to claim 5 is in the milk, it is characterised in that：Institute The pre-buried position for stating grout sleeve and the aligned in position where floor, have between the grout outlet and floor of the grout sleeve 45 ° of angles.
- The connecting structure 7. the prefabricated assembled centers the UHPC anticollision barrier according to any one of claim 1-3 is in the milk, It is characterized in that：The oval ring-type of the external shear key, the ellipse short shaft axis of the external shear key and UHPC anticollisions The axis of guardrail is vertical.
- The connecting structure 8. the prefabricated assembled centers the UHPC anticollision barrier according to any one of claim 1-3 is in the milk, It is characterized in that：The length that the connection reinforcing bar stretches into perfusion chamber is not less than 9 times of connection bar diameter.
- The connecting structure 9. the prefabricated assembled centers the UHPC anticollision barrier according to any one of claim 1-3 is in the milk, It is characterized in that：The internal shear connector is in same position with external shear key in longitudinal direction.
- The connecting structure 10. the prefabricated assembled centers the UHPC anticollision barrier according to any one of claim 1-3 is in the milk, It is characterized in that：The grout sleeve is cast by spheroidal graphite cast-iron to be formed or is formed by structural alloy steel machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782571.3A CN108755403A (en) | 2018-07-16 | 2018-07-16 | A kind of prefabricated assembled centers UHPC anticollision barrier grouting connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782571.3A CN108755403A (en) | 2018-07-16 | 2018-07-16 | A kind of prefabricated assembled centers UHPC anticollision barrier grouting connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108755403A true CN108755403A (en) | 2018-11-06 |
Family
ID=63974088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810782571.3A Withdrawn CN108755403A (en) | 2018-07-16 | 2018-07-16 | A kind of prefabricated assembled centers UHPC anticollision barrier grouting connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108755403A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250081A (en) * | 2021-06-15 | 2021-08-13 | 山西高速集团朔神有限责任公司 | Prefabricated anti-collision wall for assembled bridge and construction method of prefabricated anti-collision wall |
| CN113802771A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize half grout sleeve structure of sleeve reinforcing bar self-centering |
-
2018
- 2018-07-16 CN CN201810782571.3A patent/CN108755403A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113250081A (en) * | 2021-06-15 | 2021-08-13 | 山西高速集团朔神有限责任公司 | Prefabricated anti-collision wall for assembled bridge and construction method of prefabricated anti-collision wall |
| CN113802771A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize half grout sleeve structure of sleeve reinforcing bar self-centering |
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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: 20181106 |
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| WW01 | Invention patent application withdrawn after publication |