CN215104730U - Segment assembled beam prestress duct connection node structure - Google Patents
Segment assembled beam prestress duct connection node structure Download PDFInfo
- Publication number
- CN215104730U CN215104730U CN202120623221.XU CN202120623221U CN215104730U CN 215104730 U CN215104730 U CN 215104730U CN 202120623221 U CN202120623221 U CN 202120623221U CN 215104730 U CN215104730 U CN 215104730U
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- CN
- China
- Prior art keywords
- bellows
- segment
- connection node
- roof beam
- connection
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- 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.)
- Expired - Fee Related
Links
- 239000011148 porous material Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 210000001503 joint Anatomy 0.000 claims description 16
- 239000010426 asphalt Substances 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 239000011440 grout Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a roof beam prestressing force pore connected node structure is assembled to festival section for it is complicated to solve current node structure, and the connection effect especially seals the poor problem of effect. It includes two roof beam sections of treating the connection, and the attach fitting of setting in two roof beam sections, the setting that two attach fitting structure is the same and symmetry is in two roof beam sections, wear to establish the cable wire in the stress cable wire passageway that forms after two attach fittings docks, the cable wire is connected two roof beam sections after being taut, and there is grout in this stress cable wire passageway, this attach fitting includes annular piece I that sets up from one end to the other end order, bellows I, annular piece II and bellows II, the inner space of bellows I sets up flexible ring, and the outer terminal surface of this flexible ring is a little higher than the terminal surface of roof beam section. The utility model discloses a connector structure is simple, and is sealed effectual, satisfying cable and sealed effect that can be fine.
Description
Technical Field
The utility model belongs to the technical field of the bridge construction technique and specifically relates to a girder prestressed duct connected node structure is assembled to festival section to the construction of festival section assembly roof beam.
Background
The construction of the prestressed concrete glued joint assembled beam is a method commonly existing in the construction of a viaduct beam, and particularly, a beam body is divided into a plurality of segment units to be prefabricated in an industrial mode, and then the segment units are transported to a bridge location section by section to be constructed by a movable support bridge fabrication machine. Has the characteristics of high mechanization and automation degree.
Specifically, in the construction stage, epoxy sealant is coated on the joint surface of the precast beam section, and then the beam is integrally formed in a tension prestressing manner to realize the sealing performance of the prestressed duct. The prestressed steel cables apply tensile stress enough to connect the precast beam sections, and the epoxy sealant ensures the sealing between the two precast beam sections. However, the method has problems, mainly including large consumption of epoxy sealant, large construction amount and high cost because the end surface area of the precast beam section is large, and a large amount of epoxy sealant needs to be coated.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a girder prestressing force pore canal connected node structure is assembled to festival section for it is complicated to solve current node structure, and the poor problem of the especially sealed effect of connection effect.
The utility model provides a technical scheme that its technical problem adopted does:
a segment-assembled beam prestress pore channel connection node structure comprises two beam segments to be connected and connection joints arranged in the two beam segments, the two connection joints are arranged in the two beam segments in the same and symmetrical mode, a steel cable penetrates through a stress steel cable channel formed by butt joint of the two connection joints, the two beam segments are connected after the steel cable is tensioned, grouting is arranged in the stress steel cable channel, the segment-assembled beam prestress pore channel connection node structure is characterized in that,
the connecting joint comprises an annular sheet I, a corrugated pipe I, an annular sheet II and a corrugated pipe II which are sequentially arranged from one end to the other end,
and the inside diameter of bellows I is greater than the inside diameter of bellows II, and the inner space of bellows I sets up flexible ring, and the outer terminal surface of this flexible ring is a little higher than the terminal surface of beam section.
The outer end face of the flexible ring is slightly higher than the end face of the beam section by 1 mm.
The connecting joint is made of metal.
The connecting joint is made of plastic.
Further, the flexible ring is an asphalt ring or a rubber ring.
Further, a steel pipe is inserted into the two flexible rings.
The utility model has the advantages that:
the utility model discloses a connector structure is simple, and is sealed effectual, satisfying cable and sealed effect that can be fine.
Drawings
FIG. 1 is a perspective view of a joint (partially cut away)
Fig. 2 is a front view of the connection joint.
Fig. 3 is a full sectional view of the connection joint.
Fig. 4 is a view of the arrangement of the connection joints in a beam section.
Fig. 5 is a structural diagram of a connection node configuration.
Fig. 6 is a structural view of the second embodiment.
In the figure:
10 corrugated pipes I, 11 asphalt rings, 12 steel pipes,
20 a corrugated pipe II is arranged on the upper surface of the corrugated pipe II,
30 of the ring-shaped sheets I,
40 of the ring-shaped sheets II,
a plug made of 50 polyethylene plastics is arranged on the inner wall of the shell,
the 00-section assembled beam is composed of a beam body,
01 filling the slurry.
Detailed Description
In order to explain the present invention more clearly, the present invention will be further described with reference to the preferred embodiments and the accompanying drawings. The details described below are exemplary in nature and not limiting.
A segment assembled beam prestress pore channel connecting joint structure comprises two segment assembled beams to be connected, wherein each segment assembled beam is internally provided with a prestress steel cable channel, and the prestress steel cable channel is formed in such a way: in the prefabrication stage of a factory mold, a through channel is formed through an internal corrugated pipe or a sleeve, one end of the through channel is provided with a connecting joint, and the connecting joint has a specific structural style.
Example one
The connecting joint is integrally composed of two end corrugated pipes (10,20) and two annular sheets (30,40), namely, referring to fig. 1 to 3, the two metal corrugated pipes are pipes with different diameters, one is larger and the other is smaller, the two metal corrugated pipes are connected through one metal annular sheet, the other annular sheet is welded at the outer end of the large-diameter corrugated pipe, and the annular sheet forms an outward flange structure at the end part of the large corrugated pipe.
Thus, a larger space is formed in the inner cavity of the corrugated pipe with a larger diameter, hot-melt asphalt is injected into the space in a glue injection mode and is cooled to form an annular asphalt ring 11, the asphalt ring is filled in the corrugated pipe, the inner diameter of the asphalt ring is basically the same as that of the corrugated pipe with a small diameter, and the outer end of the asphalt ring is slightly higher than the outer end face of the large annular sheet.
For convenience of description, the following definitions are made:
the large size bellows is defined as: bellows I, designated 10.
The small size bellows is defined as: bellows II, labeled 20.
The large size of the annular plate is defined as: annular segment i, labeled 30.
The small size of the annular plate is defined as: ring segment ii, labeled 40.
A polyethylene plastic plug 50 is arranged in the transportation process for preventing dust.
Use the utility model discloses construct according to following method during prestressed duct connector:
step 1, as shown in fig. 4, pre-burying a connecting joint at the pouring and molding stage of a prefabricated product, and ensuring that a large annular sheet I30 is flush with the end part of a segment assembling beam 00, namely the outer end of an asphalt ring has about 1 mm of outer leakage, and after the mould is removed, protecting the connecting joint by using a polyethylene plastic end socket.
When the beam sections are assembled, the polyethylene plastic end sockets are firstly pulled out, then epoxy resin glue is coated on the local surface of the concrete of the splicing surface of the beam sections, finally, the two beam sections are drawn close by external force for splicing, a prestressed cable is used for tensioning, the splicing of one section of two ends is completed, the whole-hole bridge sections are assembled by the same method, then the permanent prestressed construction of the bridge is carried out, the pore canal is grouted, and grouting filling 01 is formed in the channel.
The segment assembled beam prestress pore channel connection node structure after splicing comprises two beam sections to be connected and two connection joints arranged in the two beam sections, wherein the two connection joints are arranged in the two beam sections in the same and symmetrical mode, a steel cable is arranged in a stress steel cable channel formed after the two connection joints are in butt joint in a penetrating mode, and the two beam sections are tightly locked after the steel cable is tensioned.
Further, the above-described asphalt ring as the sealing member may be replaced with a rubber ring.
Example two
Referring to fig. 6, in the present embodiment, one steel pipe 12 for butt joint is added, and specifically, one steel pipe 12 is inserted into the joint of two joints, and the steel pipe spans the asphalt ring positions of the two joints, thereby improving the convenience and rigidity of the joint.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should be able to make various modifications and improvements to the present invention without departing from the spirit of the present invention.
Claims (6)
1. A segment-assembled beam prestress pore channel connection node structure comprises two beam segments to be connected and connection joints arranged in the two beam segments, the two connection joints are arranged in the two beam segments in the same and symmetrical mode, a steel cable penetrates through a stress steel cable channel formed after the two connection joints are in butt joint, the two beam segments are connected after the steel cable is tensioned, grouting is arranged in the stress steel cable channel, the segment-assembled beam prestress pore channel connection node structure is characterized in that,
this attach fitting includes annular piece I, bellows I, annular piece II and the bellows II that sets up from one end to the other end order, just the inside diameter of bellows I is greater than the inside diameter of bellows II, and the inner space of bellows I sets up flexible ring, and the outer terminal surface of this flexible ring is higher than the terminal surface of beam section.
2. The segment erection beam prestressed tunnel connection node construction of claim 1, wherein the outer end face of said flexible ring is 1 mm higher than the end face of the beam segment.
3. The segment erection beam prestressed duct connection node structure of claim 1, wherein said connection joint is made of metal.
4. The segment erection beam prestressed duct connection node construction of claim 1, wherein the connection joint is made of plastic.
5. The segment erection beam prestressed tunnel connection node construction of claim 2, wherein the flexible ring is an asphalt ring or a rubber ring.
6. The segment erection beam prestressed tunnel connection node construction of claim 1, wherein steel pipes are inserted into the two flexible rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120623221.XU CN215104730U (en) | 2021-03-26 | 2021-03-26 | Segment assembled beam prestress duct connection node structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120623221.XU CN215104730U (en) | 2021-03-26 | 2021-03-26 | Segment assembled beam prestress duct connection node structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215104730U true CN215104730U (en) | 2021-12-10 |
Family
ID=79345183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120623221.XU Expired - Fee Related CN215104730U (en) | 2021-03-26 | 2021-03-26 | Segment assembled beam prestress duct connection node structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215104730U (en) |
-
2021
- 2021-03-26 CN CN202120623221.XU patent/CN215104730U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |