CN211256667U - Connection structure of bottom grout formula UHPC crash barrier - Google Patents
Connection structure of bottom grout formula UHPC crash barrier Download PDFInfo
- Publication number
- CN211256667U CN211256667U CN201922062946.1U CN201922062946U CN211256667U CN 211256667 U CN211256667 U CN 211256667U CN 201922062946 U CN201922062946 U CN 201922062946U CN 211256667 U CN211256667 U CN 211256667U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- grouting
- uhpc
- groove
- collision guardrail
- 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.)
- Active
Links
Images
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model relates to a bottom grout formula UHPC crash barrier's connection structure, include: mounting holes, anti-collision guardrails and grouting connecting pieces which are arranged on the road surface; the anti-collision guardrail is formed by prefabricating UHPC concrete, a groove is formed in the bottom of the anti-collision guardrail, and embedded steel bars are arranged on two sides of the groove respectively; the grouting connecting piece comprises a sleeve, and a plurality of through holes are formed in the surface of the sleeve; a plurality of arc-shaped anti-slip grooves are arranged on the outer side of the sleeve, and the radian of each anti-slip groove is less than 360 degrees; the road surface is provided with a bulge matched with the groove, and the mounting holes are formed in two sides of the bulge; and after the grouting material is filled, the grouting material overflows the through hole and fills a gap between the outer side of the sleeve and the mounting hole. Has the advantages that: the utility model discloses a need not to preset the girder, can directly set up the mounting hole on the road surface, through the grout connecting piece snap-on anticollision barrier of placing, simple structure, the anticollision performance is good.
Description
Technical Field
The utility model belongs to the technical field of the guardrail technique and specifically relates to a connection structure of bottom grout formula UHPC anticollision barrier is related to.
Background
In recent years, China actively seeks and enriches green construction modes of rapidity, low road interference and silence, advocates assembly type construction vigorously, and actively explores the application of novel materials in assembly type buildings. The anti-collision guardrail is an important component of a bridge, the UHPC anti-collision guardrail has simple structure, the weight is reduced by about 65 percent compared with the traditional solid reinforced concrete anti-collision guardrail, the structure has super toughness and obvious advantages, but the existing assembled UHPC crash barrier realizes the connection through a bottom plate bolt and a connecting steel bar pre-embedded in a wing plate, for example, Chinese patent CN201820380949.2, a light high-strength prefabricated bridge anti-collision guardrail, which comprises a prefabricated UHPC guardrail body, the prefabricated UHPC guardrail body is arranged on the bridge through an embedded part arranged on the bridge, the prefabricated UHPC guardrail body comprises a side panel, a top plate, a bottom plate and rib plates arranged inside the side panel, the top plate and the bottom plate, the prefabricated UHPC guardrail body forms an integrally formed hollow structure with an opening at the outer side through the side panel, the top plate, the bottom plate and the rib plates, and a mounting position matched with the embedded part is arranged on the bottom plate.
This patent is at actual application in-process, first-selected need be equipped with the built-in fitting on the bottom surface, then will prefabricate UHPC guardrail body again and install according to the built-in fitting and target in place, consequently, there may be the position of built-in fitting error in the work progress, leads to the unable problem of installing target in place of guardrail to appear.
In order to solve the problem, Chinese patent CN201821128548.4 provides a top plate grouting connection prefabricated FRP reinforcement concrete central 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, FRP reinforcements and common reinforcements are pre-embedded in the prefabricated anti-collision guardrail, the FRP reinforcement comprises guardrail stress reinforcements which are respectively arranged on the left side and the right side of the prefabricated anti-collision guardrail and are parallel to a slope surface, and longitudinal reinforcements which are arranged at intervals along the longitudinal direction, and the common reinforcements comprise guardrail connection reinforcements and guardrail construction reinforcements; the guardrail connecting steel bars are respectively arranged on the left side and the right side of the prefabricated anti-collision guardrail and are parallel to the slope surface, one end of each guardrail connecting steel bar extends into the prefabricated anti-collision guardrail, and the other end of each guardrail connecting steel bar extends out of two sides of the bottom of the prefabricated anti-collision guardrail; the guardrail structure steel bars are arranged at the bottom of the prefabricated anti-collision guardrail, and two ends of the guardrail structure steel bars are respectively bent at the left side and the right side of the prefabricated anti-collision guardrail and are bound and connected with the longitudinal steel bars; the prefabricated main beam is internally pre-buried with a metal corrugated pipe for the guardrail connecting steel bars to extend into, and is externally surrounded with stirrups, and the prefabricated anti-collision guardrail is connected with the prefabricated main beam by pouring grouting material into the metal corrugated pipe.
However, the patent has new problems, for example, the main beam needs to be preset in advance, and particularly, the main beam needs to be embedded in advance at a fixed interval in order to improve the stability of the metal corrugated pipe embedded in the main beam. Therefore, the anti-collision guardrail cannot be installed and fixed anytime and anywhere, and is not suitable for large-scale application.
Therefore, the utility model provides a bottom grout formula UHPC crash barrier's connection structure, this structure need not to preset the girder, can the direct mount on the road surface, stable in structure.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bottom grout formula UHPC anticollision barrier's connection structure to the problem that the girder needs preset in advance among the solution prior art.
The utility model provides a technical problem adopt following technical scheme to realize:
a connection structure of bottom grout formula UHPC crash barrier includes: mounting holes, anti-collision guardrails and grouting connecting pieces which are arranged on the road surface;
the anti-collision guardrail is formed by prefabricating UHPC concrete, a groove is formed in the bottom of the anti-collision guardrail, and embedded steel bars are arranged on two sides of the groove respectively;
the grouting connecting piece comprises a sleeve, a grouting cavity is formed in the sleeve, at least three internal shear keys are longitudinally distributed on the inner wall of the sleeve at intervals, and a grouting opening and a grout outlet are formed in the upper part of the sleeve; the surface of the sleeve is provided with a plurality of through holes; a plurality of arc-shaped anti-slip grooves are arranged on the outer side of the sleeve, and the radian of each anti-slip groove is less than 360 degrees;
the road surface is provided with a bulge matched with the groove, and the mounting holes are formed in two sides of the bulge; and after the grouting material is filled, the grouting material overflows the through hole and fills a gap between the outer side of the sleeve and the mounting hole.
As preferred technical scheme, the mouth of irritating the river and the grout outlet pass through the pipeline and follow respectively the bottom surface of anticollision barrier extends out to through to pour into grout material in the pouring cavity, with the embedded part reinforcing bar on the anticollision barrier and sleeve link to each other.
As a preferable technical scheme, a positioning groove for accommodating the pipeline is formed in the mounting hole.
Preferably, the diameter of the sleeve is 5cm to 15 cm.
Preferably, the length of the embedded part reinforcing steel bar extending into the pouring chamber is not less than 12 times of the diameter of the embedded part reinforcing steel bar.
As a preferable technical scheme, the position of the river irrigation port and the position of the grout outlet are on the same horizontal plane.
As a preferred technical scheme, the radian of the anti-skid groove is 270 degrees.
Preferably, a rim for covering the positioning hole extends outward from the top of the sleeve.
According to a preferable technical scheme, the sleeve is made of stainless steel or aluminum alloy.
Has the advantages that: the utility model discloses a need not to preset the girder, can directly set up the mounting hole on the road surface, through the grout connecting piece snap-on anticollision barrier of placing, simple structure, simple to operate, the anticollision performance is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows the utility model: a schematic cross-sectional structure diagram of a connecting structure of a bottom grouting type UHPC crash barrier;
FIG. 2 is a schematic structural view of the grouting connector of the present invention;
fig. 3 is a schematic sectional structure view of the grouting connector of the present invention; .
Wherein:
90-mounting hole
91-convex
99-road surface
100-grouting connector
200-anti-collision guardrail
101-sleeve
102-perfusion Chamber
103-shear key
104-river irrigation mouth
105-slurry outlet
106-through hole
107-antiskid groove
108-line
109-grouting material
110-circle edge
201-groove
202-embedded steel reinforcement.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Example 1
Referring to fig. 1 to 3, a connection structure of a bottom-grouting type UHPC crash barrier includes: mounting holes 90, anti-collision guardrails 200 and grouting connectors 100 which are arranged on the road surface 99; the anti-collision guardrail 200 is formed by prefabricating UHPC concrete, a groove 201 is arranged at the bottom of the anti-collision guardrail 200, and embedded part steel bars 202 are respectively arranged on two sides of the groove 201; a protrusion 91 fitted with the groove 201 is provided on the road surface 99, and the mounting holes 90 are provided on both sides of the protrusion 91. Through the cooperation of protruding 91 and slot 201, can increase the crashworthiness of the horizontal direction of crash barrier 200.
The grouting connecting piece 100 of the utility model comprises a sleeve 101, a grouting cavity 102 is formed in the sleeve 101, at least three internal shear keys 103 are distributed on the inner wall of the sleeve 101 at intervals along the longitudinal direction, and a grouting opening 104 and a grout outlet 105 are arranged on the upper part of the sleeve 101; the surface of the sleeve 101 is provided with a plurality of through holes 106, the through holes 106 can be randomly distributed, and the main purpose is that the filled grouting material 109 overflows the through holes 106 and fills the gap between the outer side of the sleeve 101 and the mounting hole 90; a plurality of arc-shaped anti-slip grooves 107 are arranged on the outer side of the sleeve 101, the radian of each anti-slip groove 107 is smaller than 360 degrees, the radian of each anti-slip groove 107 in the embodiment is 270 degrees, and the anti-slip grooves 107 are distributed on the outer side of the sleeve 101 in a random mode; when filled with the grout 109, the grout 109 overflows the through hole 106 and fills the gap between the outside of the sleeve 101 and the mounting hole 90.
The utility model discloses a irritate river mouth 104 and grout outlet 105 and extend out from the bottom surface of anticollision barrier 200 respectively through pipeline 108 to through pouring into grout material 109 in pouring into cavity 102, with linking to each other with the sleeve 101 with the embedded part reinforcing bar 202 on the anticollision barrier 200. To further level the road surface 99, a positioning groove for accommodating the pipeline 108 is formed in the mounting hole 90.
When the filled grouting material 109 overflows outwards, the gap between the anti-slip grooves 107 can be filled with the grouting material 109, and after the grouting material 109 is cured, the ground and the grouting connecting piece 100 are integrated into a whole, so that the structure is stable.
The diameter of the sleeve 101 of the utility model is 5 cm-15 cm. Wherein the length of the embedded rebar 202 extending into the perfusion chamber 102 is no less than 12 times the diameter of the embedded rebar 202.
The position of the river irrigation opening 104 and the position of the grout outlet 105 of the utility model are on the same horizontal plane.
In order to reduce the grout 109 overflowing from the gap between the sleeve 101 and the mounting hole 90, a rim 110 extends outward from the top of the sleeve 101 to cover the mounting hole 90.
The sleeve 101 of the present invention is made of stainless steel or aluminum alloy. The grouting material 109 is high-strength grouting material with good fluidity, early strength and micro-expansion, and the embedded part steel bar 202 is ribbed steel bar.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a connection structure of bottom grout formula UHPC crash barrier which characterized in that includes: mounting holes, anti-collision guardrails and grouting connecting pieces which are arranged on the road surface;
the anti-collision guardrail is formed by prefabricating UHPC concrete, a groove is formed in the bottom of the anti-collision guardrail, and embedded steel bars are arranged on two sides of the groove respectively;
the grouting connecting piece comprises a sleeve, a grouting cavity is formed in the sleeve, at least three internal shear keys are longitudinally distributed on the inner wall of the sleeve at intervals, and a grouting opening and a grout outlet are formed in the upper part of the sleeve; the surface of the sleeve is provided with a plurality of through holes; a plurality of arc-shaped anti-slip grooves are arranged on the outer side of the sleeve, and the radian of each anti-slip groove is less than 360 degrees;
the road surface is provided with a bulge matched with the groove, and the mounting holes are formed in two sides of the bulge; and after the grouting material is filled, the grouting material overflows the through hole and fills a gap between the outer side of the sleeve and the mounting hole.
2. The connecting structure of the bottom grouting type UHPC anti-collision guardrail as claimed in claim 1, wherein the grouting opening and the grout outlet are respectively extended out from the bottom surface of the anti-collision guardrail through pipelines.
3. The connecting structure of the bottom grouting type UHPC anti-collision guardrail as claimed in claim 2, wherein a positioning groove for accommodating the pipeline is formed on the mounting hole.
4. The connection structure of the bottom grouting type UHPC crash barrier as claimed in claim 1, wherein the diameter of the sleeve is 5 cm-15 cm.
5. The connecting structure of the bottom grouting type UHPC crash barrier as recited in claim 1, wherein the length of the embedded steel bars extending into the pouring chamber is not less than 12 times the diameter of the embedded steel bars.
6. The connecting structure of the bottom grouting type UHPC anti-collision guardrail as claimed in claim 1, wherein the position of the grouting opening and the position of the grout outlet are on the same horizontal plane.
7. The connecting structure of the bottom grouting type UHPC anti-collision guardrail of claim 1, wherein the radian of the anti-slip groove is 270 degrees.
8. The connection structure of a bottom grouting type UHPC crash barrier according to claim 1, characterized in that a rim for covering a positioning hole extends outwards from the top of the sleeve.
9. The connection structure of the bottom grouting type UHPC anti-collision guardrail according to claim 1, characterized in that the sleeve is made of stainless steel or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062946.1U CN211256667U (en) | 2019-11-26 | 2019-11-26 | Connection structure of bottom grout formula UHPC crash barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922062946.1U CN211256667U (en) | 2019-11-26 | 2019-11-26 | Connection structure of bottom grout formula UHPC crash barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211256667U true CN211256667U (en) | 2020-08-14 |
Family
ID=71958195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922062946.1U Active CN211256667U (en) | 2019-11-26 | 2019-11-26 | Connection structure of bottom grout formula UHPC crash barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211256667U (en) |
Cited By (1)
| 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 |
-
2019
- 2019-11-26 CN CN201922062946.1U patent/CN211256667U/en active Active
Cited By (1)
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104060717B (en) | A kind of fabricated shear wall structural wall board fractionation-assemble method | |
| CN203961054U (en) | A kind of combined connecting structure of fabricated shear wall plate | |
| CN205663075U (en) | Precast concrete coincide floor | |
| CN105926766A (en) | Prefabricated shear wall toothed groove type connecting structure assembling construction method | |
| CN211256667U (en) | Connection structure of bottom grout formula UHPC crash barrier | |
| CN205776755U (en) | A kind of encased steel plate multi-cavity combination type shear wall core wall structure system | |
| CN205617419U (en) | Novel combination formula reinforced earth retaining wall structure | |
| CN110258857A (en) | A kind of assembled modularization lightweight steel construction wall connecting construction and its construction method | |
| CN104652608B (en) | Assembly type exterior wall and beam connecting structure | |
| KR20110028726A (en) | Water-proofing plate | |
| CN220504158U (en) | Mixed frame structure connected by primary connectors | |
| CN211312226U (en) | Grouting connecting device for fixing UHPC (ultra high performance polycarbonate) component | |
| CN204357000U (en) | A kind of precast and assembled reinforced concrete spinous process of the seventh cervical vertebra frame | |
| CN107558631A (en) | One kind wears muscle anchoring concrete-filled steel tube shear wall fabricated construction | |
| CN108729350B (en) | Prefabricated UHPC side anti-collision guardrail grouting connection structure | |
| CN214461822U (en) | Vertical steel bar grouting sleeve of assembled shear wall structure | |
| CN209723230U (en) | The connecting node of steel plate combined shear wall and not equal higher baselines | |
| CN108755929A (en) | A kind of assembled pre-tensioned prestressed concrete frame and its construction technology | |
| CN210369353U (en) | Building prefabricated part connecting structure | |
| CN209082827U (en) | Pin-connected panel multi-cavity steel tube concrete column | |
| CN209799020U (en) | steel bar formwork integrated wall and coupling beam mechanical connection structure | |
| KR101219459B1 (en) | The water-storage tank of assembly type and method for constructing thereof | |
| CN209145266U (en) | A kind of adjustable concrete blinding of rigidity | |
| CN207244838U (en) | Bean column node connects system and assembled wallboard | |
| CN208167507U (en) | The pier bottom structure and single track bridge pier of single track bridge pier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 101, 1st floor, building 1, building 2, building 3, No. 237, Xinsheng Road, Qingpu District, Shanghai Patentee after: Anyituo New Materials Technology (Shanghai) Co.,Ltd. Address before: 201712 Room 101, Floor 1, Building 1, Building 2 and Building 3, No. 237, Xinsheng Road, Qingpu District, Shanghai Patentee before: ZHUOXIONG NEW MATERIAL TECHNOLOGY (SHANGHAI) CO.,LTD. |
|
| CP03 | Change of name, title or address |