CN208803371U - A kind of prefabricated assembled center UHPC anticollision barrier grouting connecting structure - Google Patents
A kind of prefabricated assembled center UHPC anticollision barrier grouting connecting structure Download PDFInfo
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- CN208803371U CN208803371U CN201821124985.9U CN201821124985U CN208803371U CN 208803371 U CN208803371 U CN 208803371U CN 201821124985 U CN201821124985 U CN 201821124985U CN 208803371 U CN208803371 U CN 208803371U
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- uhpc
- anticollision barrier
- grout sleeve
- grouting
- connecting structure
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Abstract
The utility model discloses a kind of prefabricated assembled center UHPC anticollision barrier grouting connecting structure, including girder top plate and UHPC anticollision barrier with connection reinforcing bar, it is embedded with grout sleeve respectively at left and right sides of UHPC anticollision barrier bottom internal, the inner wall of grout sleeve at least three inside shear connectors of longitudinally spaced distribution, the outer wall of grout sleeve is longitudinally spaced to be distributed with external shear key corresponding with internal shear connector, grout sleeve, which 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 grouting material being perfused into filling cavity room UHPC anticollision barrier to be connected with girder top plate, the connection of grout sleeve and UHPC anticollision barrier is realized by the way that external shear key is arranged, and pass through internal shear connector, connect reinforcing bar, it fills Grout sleeve and girder top plate are linked to be entirety, avoid the embedded bar inside UHPC anticollision barrier, facilitate the prefabricated of UHPC anticollision barrier by the synergistic effect of slurry.
Description
Technical field
The utility model relates to bridge construction technical field of structures, in particular to a kind of prefabricated assembled center UHPC anticollision
Guardrail grouting connecting structure.
Background technique
In recent years, China actively seeks and enriches the green construction mode of rapid, low road interference, mute, 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 structure than traditional solid armored concrete anticollision barrier weight saving about 65%, and is tied
Structure has ultra-tough, with the obvious advantage, but existing assembled UHPC anticollision barrier by bed bolt and is 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 for researching and developing suitable for the novel connection of UHPC anticollision barrier.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of simple structure, easy construction it is prefabricated assembled
The center UHPC anticollision barrier grouting connecting structure.
A kind of used technical solution to solve above-mentioned technical problem: the prefabricated assembled center UHPC anticollision barrier grouting
Connecting structure, including girder top plate and UHPC anticollision barrier, the UHPC anticollision barrier bottom left and right sides are embedded with filling respectively
Sleeve is starched, forms perfusion chamber, the longitudinally spaced distribution at least three of the inner wall of the grout sleeve inside the grout sleeve
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 for being inserted into for connection reinforcing bar and in filling cavity room and being in UHPC anticollision barrier bottom, 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 inserts through being open
Enter the connection reinforcing bar in half grout sleeve, by grouting material being perfused into filling cavity room with by UHPC anticollision barrier and girder top plate
It is connected.
Preferably, UHPC anticollision barrier 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 anticollision shield between the UHPC anticollision barrier and girder top plate
Column bottom is longitudinally spaced to be equipped with glue groove.
Preferably, the UHPC anticollision barrier is 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 protrudes into perfusion chamber is not less than 9 times of connection bar diameter.
Preferably, the internal shear connector is in same position in longitudinal direction with external shear key.
Preferably, the grout sleeve is cast by spheroidal graphite cast-iron forms or is formed by structural alloy steel machining.
The utility model has the advantages that
(1) the pre-buried grout sleeve inside UHPC anticollision barrier, by be arranged external shear key realize grout sleeve with
The connection of UHPC anticollision barrier, 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 barrier, facilitates the prefabricated of UHPC anticollision barrier, more
It is suitable for industrial flow-line production；
(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 period can hide its trace by deck paving, out
It starches mouth and is directed toward side plate interior sides, can avoid surface grout to the visual impact of UHPC anticollision barrier.
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 embodiment；
Fig. 2 is another section structure diagram of the utility model embodiment；
Fig. 3 is the side structure schematic diagram of the utility model embodiment；
Fig. 4 is the schematic cross-section of grout sleeve in the utility model embodiment；
Fig. 5 is the schematic cross-section of another angle of grout sleeve in the utility model embodiment.
Specific embodiment
Referring to figs. 1 to Fig. 5, the prefabricated assembled center the UHPC anticollision barrier grouting connecting structure of the utility model, including master
Back plate 10 and UHPC anticollision barrier 20, girder top plate 10, which stretches out, has connection reinforcing bar 11,20 bottom of UHPC anticollision barrier or so
Grout sleeve 30 is embedded with inside two sides, 30 inner hollow of grout sleeve has perfusion chamber 31, the bottom tool of grout sleeve 30
There is opening 32, when grout sleeve 30 is embedded in UHPC anticollision barrier 20, the opening 32 and UHPC anticollision barrier of grout sleeve 30
20 bottom wall surface is concordant, and opening 32 is inserted into inside perfusion chamber 31 for connection reinforcing bar 11, and connection reinforcing bar 11 protrudes into filling cavity
Not less than 9 times of connection bar diameter, the inner wall of grout sleeve 30 is longitudinally spaced to be distributed inside at least three the length of room 31
Shear connector 33, particular number are chosen according to connection 11 built-in length of reinforcing bar, and the outer wall of grout sleeve 30 is longitudinally spaced
The external shear key 34 that same position is in internal shear connector 33, the extension elongation and thickness root of external shear key 34 is distributed with
It is chosen according to connection 11 built-in length of reinforcing bar, quantity is identical as internal shear connector.Preferably, the oval ring of external shear key 34
The ellipse short shaft axis of shape, external shear key 34 is vertical with the axis of UHPC anticollision barrier.Grout sleeve 30, which has, to be located below
Grouting mouth 35 and the grout outlet 36 that is located above, grouting material poured by grouting mouth 35, after grouting material is from the spilling of grout outlet 36
Stop grouting, by connecting reinforcing bar 11 and grout sleeve 30 for girder top plate 10 and UHPC anticollision barrier 20 after grouting material solidification
It is connected to form one.
Wherein, UHPC anticollision barrier 20 is made of side plate 21, top plate 22, bottom plate 23 and floor 24, and passes 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 barrier, correspondingly, girder top plate 10 is equipped with embedding with shearing slot 25
Admittedly the shear connector 12 cooperated is easy to lift positioning by shearing slot 25 and shear connector 12,20 bottom of UHPC anticollision barrier is additionally provided with
What is extended to two sides goes out glue groove 26, the longitudinally spaced arrangement of glue groove 26 out, when installation, first in the corresponding top surface of girder top plate 10
Epoxy resin jelly is uniformly smeared, epoxy resin jelly thickness is not less than 3mm, and subsequent lifting UHPC anticollision barrier 20 simultaneously will shearing
Slot 25 is aligned with shear connector 12, is squeezed out epoxy resin jelly with glue groove 26 out using the self weight of UHPC anticollision barrier 20, then
Anchor should be met to grouting material, the length that connection reinforcing bar 11 is inserted into grout sleeve 30 are perfused inside grout sleeve 30 by grouting 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 Yu 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 anticollision to the visual impact of UHPC anticollision barrier when grouting
The simple and beautiful property of the entirety of guardrail 20.Further, since the aligned in position where the pre-buried position of grout sleeve 30 and 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 formed by casting or machine cut is processed and to be formed, and when using Foundry Production, material
Spheroidal graphite cast-iron is selected, when producing using machining, 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.
It wherein, is to adapt to abnormity UHPC component, 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 component.
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 (10)
- The connecting structure 1. a kind of prefabricated assembled center UHPC anticollision barrier is in the milk, it is characterised in that: including girder top plate and UHPC anticollision barrier, is embedded with grout sleeve at left and right sides of UHPC anticollision barrier bottom respectively, inside the grout sleeve Form perfusion chamber, the inner wall of the grout sleeve at least three inside shear connectors of longitudinally spaced distribution, 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 is in the opening of UHPC anticollision barrier 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 through the connection steel in opening half grout sleeve of insertion Muscle, by grouting material being perfused into filling cavity room UHPC anticollision barrier to be connected with girder top plate.
- The connecting structure 2. the prefabricated assembled center UHPC anticollision barrier according to claim 1 is in the milk, it is characterised in that: institute It states UHPC anticollision barrier 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 center 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 barrier and girder top plate, UHPC anticollision barrier bottom is longitudinally spaced to be set There is glue groove out.
- 4. the grouting of the prefabricated assembled center UHPC anticollision barrier described in any one of -3 connecting structure according to claim 1, It is characterized by: the UHPC anticollision barrier is made of side plate, top plate and bottom plate and floor, the side plate bottom locally thickeies knot Structure is embedded into advance for grout sleeve.
- The connecting structure 5. the prefabricated assembled center 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 center 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.
- 7. the grouting of the prefabricated assembled center UHPC anticollision barrier described in any one of -3 connecting structure according to claim 1, It is characterized by: the oval ring-type of the external shear key, the ellipse short shaft axis of the external shear key and UHPC anticollision The axis of guardrail is vertical.
- 8. the grouting of the prefabricated assembled center UHPC anticollision barrier described in any one of -3 connecting structure according to claim 1, It is characterized by: the length that the connection reinforcing bar protrudes into perfusion chamber is not less than 9 times of connection bar diameter.
- 9. the grouting of the prefabricated assembled center UHPC anticollision barrier described in any one of -3 connecting structure according to claim 1, It is characterized by: the internal shear connector and external shear key are in same position in longitudinal direction.
- 10. the grouting of the prefabricated assembled center UHPC anticollision barrier described in any one of -3 connecting structure according to claim 1, It is formed or is formed by structural alloy steel machining it is characterized by: the grout sleeve is cast by spheroidal graphite cast-iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124985.9U CN208803371U (en) | 2018-07-16 | 2018-07-16 | A kind of prefabricated assembled center UHPC anticollision barrier grouting connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124985.9U CN208803371U (en) | 2018-07-16 | 2018-07-16 | A kind of prefabricated assembled center UHPC anticollision barrier grouting connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208803371U true CN208803371U (en) | 2019-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821124985.9U Active CN208803371U (en) | 2018-07-16 | 2018-07-16 | A kind of prefabricated assembled center UHPC anticollision barrier grouting connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208803371U (en) |
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2018
- 2018-07-16 CN CN201821124985.9U patent/CN208803371U/en active Active
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