CN217898392U - Connecting device for pre-buried sleeve of arch dam corbel prestressed anchor cable - Google Patents
Connecting device for pre-buried sleeve of arch dam corbel prestressed anchor cable Download PDFInfo
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- CN217898392U CN217898392U CN202221880208.3U CN202221880208U CN217898392U CN 217898392 U CN217898392 U CN 217898392U CN 202221880208 U CN202221880208 U CN 202221880208U CN 217898392 U CN217898392 U CN 217898392U
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Abstract
The utility model discloses a connecting device of pre-buried sheathed tube of arch dam bracket prestressed anchorage cable, including convex flange, concave flange and nylon gasket, concave flange welding is in the end of first steel casing, and convex flange welding is at the end of second steel casing, during the connection, the nylon gasket sets up between concave flange and convex flange, and concave flange passes through the bolt fastening with convex flange, the utility model discloses the field installation adopts bolt, nylon gasket, steel backing plate to connect and glass glue film fills at last sealedly, the utility model discloses solved on-the-spot quick installation, installation deviation well and corrected and connect sealed problem, connection structure is simple, and the security is high.
Description
Technical Field
The utility model relates to a pipe connection technical field especially relates to an arch dam bracket prestressed anchorage cable embedded bushing's connecting device.
Background
A steel sleeve is embedded in a U-shaped prestressed ring anchor embedded in an arch dam body, and the U-shaped prestressed ring anchor is embedded in sections along with the rising of the dam body, so that the connection joint is simple, the construction is quick, and a joint is tight and does not leak slurry or water. If the joints are not tightly sealed, mortar, concrete or sundries are easy to leak into the joints during concrete pouring, the anchor rope is anchored at the later stage, even the embedded pipeline is blocked seriously, the pipeline cannot be dredged and scrapped, and the poured bracket needs to be dismantled and poured again.
The dam type of a concrete hyperbolic arch dam is selected as more and more water-blocking dams, flood discharge buildings of the concrete hyperbolic arch dam generally adopt structures such as flood discharge middle holes, sand flushing bottom holes and the like, the flood discharge structure generally adopts a dam rear cantilever corbel mode, a corbel cantilever structure is anchored by adopting a U-shaped prestressed ring anchor, a U-shaped ring anchor is pre-embedded in a dam body in the early stage of corbel cantilever structure construction, an anchor rope is put through and tensioned after the corbel cantilever structure is poured and reaches design strength, and subsequent construction is completed.
The prior art generally has two modes.
The first method is as follows: the prestressed ring anchor is embedded with a steel sleeve, and is directly welded and connected after being directly aligned to the site in the bin number. It has the following disadvantages: 1. the embedded steel sleeve is difficult to butt in the field and is difficult to align; 2. the welding work amount is large and the time consumption is long after the embedded steel sleeve is butted on site; 3. after the embedded steel sleeve is welded, connected and installed in place, the deviation is difficult to correct.
The second method comprises the following steps: the prestressed ring anchor embedded steel sleeve is welded with an embedded pipe in advance by adopting a straight flange plate, and is connected by adopting a bolt and a rubber gasket during field installation. The disadvantages that exist are: 1. after the embedded steel sleeve is subjected to deviation adjustment, the rubber gasket is easily damaged; 2. the embedded steel sleeve is easy to have large joint gap after deviation adjustment, the joint is not tight, mortar, concrete or sundries are easy to leak into the embedded steel sleeve to block pipelines when concrete is poured, later anchor rope anchorage can be influenced, even the embedded pipelines are seriously blocked, the pipelines can not be dredged and scrapped, and the poured bracket is dismantled and poured again.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect of the prior art, the utility model provides an arch dam bracket prestressed anchorage cable embedded casing's connecting device, this connecting device simple structure connects the leakproofness good, and the field installation is quick, and construction cycle is short, carries out the deviation adjustment easily.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a connecting device of pre-buried sheathed tube of arch dam bracket prestressed anchorage cable, includes protruding flange, concave flange and nylon gasket, protruding flange welding is at the end of first steel casing, and concave flange welding is at the end of second steel casing, during the connection, the nylon gasket sets up between protruding flange and concave flange, and protruding flange passes through the bolt fastening with concave flange. The convex flange and the concave flange are respectively welded on a steel sleeve to be connected, a nylon gasket is additionally arranged between the two flanges, and the two flanges are tightened and fixed through bolts.
And a glass glue layer formed by glass glue is filled between the convex flange and the concave flange. And pouring glass cement into a gap between the convex flange and the concave flange, and forming a glass cement layer for sealing after solidification.
The convex flange and the concave flange are uniformly arranged in the connecting hole, the bolt penetrates through the connecting hole, and the nut is fastened with the bolt through the steel gasket. Further sealing is achieved with steel gaskets.
The utility model has the advantages of it is following:
1. the utility model discloses an unsmooth ring flange and pre-buried steel casing pipe welded connection in advance, bolt, nylon gasket, steel backing plate connection are adopted in the field installation, have solved the quick installation problem in scene well, and connection structure is simple, and the security is high, is fit for standardized construction requirement, and construction cycle is short.
2. The pre-buried steel sleeve connecting device adopts the concave-convex flange, the nylon gasket and the glass cement to seal for multiple times, so that the problems that the conventional joint is poor in sealing performance, concrete and cement paste leak in the concrete pouring process and the like are solved.
Drawings
FIG. 1 is a schematic view of the structure assembly of the present invention;
FIG. 2 is a schematic view of the installation structure of the present invention;
FIG. 3 is a schematic view of a female flange structure;
fig. 4 is a schematic view of a male flange structure.
The labels in the figure are: 1-first steel pipe sleeve, 2-concave flange, 3-nylon gasket, 4-convex flange, 5-bolt, 6-glass cement layer, 7-steel gasket, 8-nut, 9-second steel sleeve, 10-connecting hole, 11-convex surface and 12-concave surface.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the following examples, which are conventional unless otherwise specified, and the materials can be obtained commercially from the disclosure without further specification.
A connecting device for pre-buried sleeves of corbel prestressed anchor cables of an arch dam comprises a concave flange 2, a convex flange 4 and a nylon gasket 3, wherein the concave flange 2 is welded at the end of a first steel sleeve 1, and the concave surface 12 of the concave flange 2 is exposed, as shown in figures 1, 2, 3 and 4; the convex flange 4 is welded at the end of the second steel sleeve 9, the convex surface 11 of the convex flange 4 is exposed, and when the connection is carried out in site operation, the nylon gasket 3 is arranged between the concave flange 2 and the convex flange 4, the concave surface 12 of the concave flange 2 and the convex surface 11 of the convex flange 4 are mutually embedded, and then the two flanges are tensioned and fixed through the bolts 5.
Connecting holes 10 are uniformly formed in the concave flange 2 and the convex flange 4, the bolts 5 penetrate through the connecting holes 10, and the nuts 8 are fastened with the bolts 5 through steel gaskets 7.
A glass glue layer 6 formed by pouring glass glue between the concave flange 2 and the convex flange 4; the opposite bolt part is screwed, the installation deviation of the embedded steel sleeve is measured and checked, the embedded steel sleeve is qualified and primarily reinforced, the bolt is fully screwed after the requirement is met, the installation deviation of the embedded steel sleeve is checked again, the steel sleeve is fixed on a sample frame after the embedded steel sleeve is qualified, the glass cement is used, and the outer ring of the nylon gasket of the butt joint is sealed.
Claims (3)
1. The utility model provides a connecting device of pre-buried sleeve pipe of arch dam bracket prestressed anchorage cable which characterized in that: including concave flange (2), protruding flange (4) and nylon gasket (3), concave flange (2) welding is at the end of first steel casing pipe (1), and protruding flange (4) welding is at the end of second steel casing pipe (9), during the connection, nylon gasket (3) set up between concave flange (2) and protruding flange (4), and it is fixed through bolt (5) that concave flange (2) and protruding flange (4).
2. The connecting device of the pre-embedded sleeve of the prestressed anchor cable of the corbel of the arch dam according to claim 1, characterized in that: and a glass adhesive layer (6) formed by glass adhesive is poured between the concave flange (2) and the convex flange (4).
3. The connecting device for the pre-stressed anchor cable embedded sleeves of the corbel of the arch dam as claimed in claim 1, wherein: evenly set up connecting hole (10) on concave flange (2) and convex flange (4), connecting hole (10) are passed in bolt (5), and nut (8) are through steel gasket (7) and bolt (5) fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221880208.3U CN217898392U (en) | 2022-07-20 | 2022-07-20 | Connecting device for pre-buried sleeve of arch dam corbel prestressed anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221880208.3U CN217898392U (en) | 2022-07-20 | 2022-07-20 | Connecting device for pre-buried sleeve of arch dam corbel prestressed anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217898392U true CN217898392U (en) | 2022-11-25 |
Family
ID=84136388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221880208.3U Active CN217898392U (en) | 2022-07-20 | 2022-07-20 | Connecting device for pre-buried sleeve of arch dam corbel prestressed anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217898392U (en) |
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2022
- 2022-07-20 CN CN202221880208.3U patent/CN217898392U/en active Active
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