CN203393616U - Shrinkage-free cement mortar sealing anchor head applied to water conservancy box beam - Google Patents
Shrinkage-free cement mortar sealing anchor head applied to water conservancy box beam Download PDFInfo
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- CN203393616U CN203393616U CN201320478654.6U CN201320478654U CN203393616U CN 203393616 U CN203393616 U CN 203393616U CN 201320478654 U CN201320478654 U CN 201320478654U CN 203393616 U CN203393616 U CN 203393616U
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- anchor
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- cement mortar
- steel strand
- shrinkage
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Abstract
The utility model discloses a shrinkage-free cement mortar sealing anchor head applied to a water conservancy box beam. The shrinkage-free cement mortar sealing anchor head comprises a steel stranded wire head, an anchor device and an anchor backing plate, the steel stranded wire head is arranged in a pre-stressed pipeline, one end of the steel stranded wire head is positioned outside the pre-stressed pipeline, the anchor backing plate is arranged on an initial support layer on a pipeline wall at a pipeline opening of the pre-stressed pipeline, the anchor device is fixed at the opening of the pre-stressed pipeline, the steel stranded wire head is arranged on the anchor device in a penetrating manner, a protective sleeve is arranged on the anchor backing plate, both the steel stranded wire head and the anchor device are arranged in the protective sleeve, an anchor plate, a clamping piece and an exposed steel stranded wire are completely wrapped and sealed by the aid of characteristics of shrinkage-free cement mortar such as high fluidity, early strength, high strength and minimum inflation and without corroding steel, so that the exposed steel stranded wire is prevented from being corroded, and the anchor head of the anchor device is effectively sealed.
Description
Technical field
The utility model relates to water conservancy box girder construction field, specifically, is a kind of non-shrinkage cement mortar sealing anchor head that is applied to water conservancy case beam.
Background technology
Prestressed concrete, is exactly in concrete or steel concrete, to introduce internal stress artificially in advance, and its numerical value just can be by the armored concrete of stresses counteract to appropriate level of service load generation with distribution.Prestressed concrete has improved crack resistance and the rigidity of member, can save material, reduces deadweight, reduces vertical shear and the principal tensile stress of concrete beam, and architecture quality is safe and reliable.In the bridge construction of curve arrangement of reinforcement or large-scale component, adopt post stretching to set up prestressing force more, by ground tackle, transmit and control prestressing force.In view of the post-stressed steel strand of case beam generally adopt in bridge, prestress wire construction is one of key link of bridge construction quality control, in construction, is paid much attention to.
Utility model content
The purpose of this utility model is to provide a kind of non-shrinkage cement mortar sealing anchor head that is applied to water conservancy case beam, utilize characteristic and the features to steel non-corroding such as non-shrinkage cement mortar high fluidity, early strong, high-strength, microdilatancy, by anchor slab and intermediate plate, expose the whole environmental sealings of steel strand, to reach, prevent from exposing steel strand by corrosion, thereby reach the quality seal to the anchor head of anchor device.
The utility model is achieved through the following technical solutions: a kind of non-shrinkage cement mortar sealing anchor head that is applied to water conservancy case beam; comprise and be arranged at the steel strand head that prestress pipe Nei Qie one end is positioned at prestress pipe outside; and anchor device, anchor plate; described anchor plate is placed on the preliminary bracing layer of prestress pipe opening part duct wall; described anchor device is fixed on the opening part of prestress pipe; steel strand head runs through and is arranged on anchor device; on described anchor plate, be also provided with protective sleeve, steel strand head and anchor device are all arranged in protective sleeve.
For better realizing the utility model, in described protective sleeve, be filled with cement mortar.
For better realizing the utility model, described anchor device comprises anchor slab and intermediate plate, and described anchor slab is provided with through hole, and described steel strand head is through through hole, and intermediate plate is placed between anchor slab through hole and steel strand head.
In order better to realize the utility model, described anchor plate adopts immersion oil steel plate.
In use, anchor plate is positioned over to the opening part of prestress pipe, and rely on preliminary bracing layer, then the steel strand that calculate radical are positioned in prestress pipe, steel strand head is exposed, by the anchor slab that is reserved with through hole, from exposing the steel strand of head, to pass and rely on anchor plate be support again, in steel strand head and through hole, add again some intermediate plates further fixing, after fixing, the exposed steel strand head in anchor slab and intermediate plate outside is flushed and cut off, but notice that exposed length can not be less than 15mm, then by cement mortar, externally reveal steel strand head, anchor slab and intermediate plate seal, and install one deck plastic cap thereon additional and further protect.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model adopts non-shrinkage cement mortar, non-shrinkage cement-based grouting material is to take cement as base material, the material that is dry mixed that adds in right amount the compositions such as natural high strength aggregate, Concrete admixtures, after blunge, there is the characteristics such as high fluidity, early strong, high-strength, microdilatancy, and there is the feature to reinforcing bar material non-corroding, steady quality and permanent use that can effective guarantee anchor head.
(2) the utility model is simple in structure, and the steel strand head position that utilizes anchor slab and intermediate plate can carry out early stage is fixed, thereby indirectly steel strand in prestress pipe is fixed by preposition, to reach the prestressing force effect of best anchor device.
(3) anchor head protective device employing non-shrinkage cement mortar described in the utility model adds the measure of plastic cap duplicate protection, can lengthen the memory loss life-span of anchor head.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1-protective sleeve, 2-steel strand head, 3-anchor device, 4-anchor plate, 5-preliminary bracing layer, 6-cement mortar.
The specific embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment:
A kind of non-shrinkage cement mortar sealing anchor head that is applied to water conservancy case beam, as shown in Figure 1, comprise and be arranged at the steel strand head 2 that prestress pipe Nei Qie one end is positioned at prestress pipe outside, and anchor device 3, anchor plate 4, described anchor plate 4 is placed on the preliminary bracing layer 5 of prestress pipe opening part duct wall, described anchor device is fixed on the opening part of prestress pipe, steel strand head 2 runs through and is arranged on anchor device 3, on described anchor plate, be also provided with protective sleeve 1, steel strand head 2 and anchor device 3 are all arranged in protective sleeve 1, in described protective sleeve 1, be filled with cement mortar 6.
In use; the steel strand head that is arranged at prestress pipe Nei Qie one end and is positioned at prestress pipe outside is run through and is arranged on anchor device; after be further fixed on preliminary bracing layer; and steel strand head and anchor device and on one deck protective sleeve is set, and in protective sleeve filling concrete mortar by steel strand head and anchor device sealing.
Embodiment 2
The present embodiment is at the enterprising one-step optimization in the basis of above-described embodiment, as shown in Figure 1, described anchor device 3 comprises anchor slab and intermediate plate, described anchor slab is provided with through hole, described steel strand head 2 runs through anchor slab through hole, intermediate plate is placed between anchor slab through hole and steel strand head, and described anchor plate 4 adopts immersion oil steel plate.
In use, anchor plate is positioned over to the opening part of prestress pipe, and rely on preliminary bracing layer, then the steel strand that calculate radical are positioned in prestress pipe, steel strand head is exposed, by the anchor slab that is reserved with through hole, from exposing the steel strand of head, to pass and rely on anchor plate be support again, in steel strand head and through hole, add again some intermediate plates further fixing, after fixing, the exposed steel strand head in anchor slab and intermediate plate outside is flushed and cut off, but notice that exposed length can not be less than 15mm, then with non-shrinkage cement mortar, externally reveal steel strand head, anchor slab and intermediate plate seal, and install one deck plastic cap thereon additional and further protect.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.
Claims (4)
1. a non-shrinkage cement mortar that is applied to water conservancy case beam seals anchor head, it is characterized in that: comprise and be arranged at the steel strand head (2) that prestress pipe Nei Qie one end is positioned at prestress pipe outside, and anchor device (3), anchor plate (4), described anchor plate (4) is placed on the preliminary bracing layer (5) of prestress pipe opening part duct wall, described anchor device is fixed on the opening part of prestress pipe, steel strand head (2) runs through and is arranged on anchor device (3), on described anchor plate, be also provided with protective sleeve (1), steel strand head (2) and anchor device (3) are all arranged in protective sleeve (1).
2. a kind of non-shrinkage cement mortar sealing anchor head that is applied to water conservancy case beam according to claim 1, is characterized in that: in described protective sleeve (1), be filled with cement mortar (6).
3. a kind of non-shrinkage cement mortar that is applied to water conservancy case beam according to claim 1 seals anchor head, it is characterized in that: described anchor device (3) comprises anchor slab and intermediate plate, described anchor slab is provided with through hole, described steel strand head (2) is through through hole, and intermediate plate is placed between anchor slab through hole and steel strand head.
4. a kind of non-shrinkage cement mortar sealing anchor head that is applied to water conservancy case beam according to claim 1, is characterized in that: described anchor plate (4) adopts immersion oil steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478654.6U CN203393616U (en) | 2013-08-07 | 2013-08-07 | Shrinkage-free cement mortar sealing anchor head applied to water conservancy box beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478654.6U CN203393616U (en) | 2013-08-07 | 2013-08-07 | Shrinkage-free cement mortar sealing anchor head applied to water conservancy box beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203393616U true CN203393616U (en) | 2014-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320478654.6U Expired - Fee Related CN203393616U (en) | 2013-08-07 | 2013-08-07 | Shrinkage-free cement mortar sealing anchor head applied to water conservancy box beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203393616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120575A (en) * | 2016-08-08 | 2016-11-16 | 北京交通大学 | A kind of external application material improves the method for bridge sealing off and covering anchorage district durability |
| CN104005519B (en) * | 2014-05-20 | 2017-06-06 | 中国科学院水利部成都山地灾害与环境研究所 | A kind of anchor head locking part |
-
2013
- 2013-08-07 CN CN201320478654.6U patent/CN203393616U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005519B (en) * | 2014-05-20 | 2017-06-06 | 中国科学院水利部成都山地灾害与环境研究所 | A kind of anchor head locking part |
| CN106120575A (en) * | 2016-08-08 | 2016-11-16 | 北京交通大学 | A kind of external application material improves the method for bridge sealing off and covering anchorage district durability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150807 |
|
| EXPY | Termination of patent right or utility model |