CN216379510U - Bamboo joint type all-steel structural anti-floating anchor rod - Google Patents
Bamboo joint type all-steel structural anti-floating anchor rod Download PDFInfo
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- CN216379510U CN216379510U CN202123147987.4U CN202123147987U CN216379510U CN 216379510 U CN216379510 U CN 216379510U CN 202123147987 U CN202123147987 U CN 202123147987U CN 216379510 U CN216379510 U CN 216379510U
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- anchor rod
- bearing plate
- sleeve
- loading board
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Abstract
The utility model belongs to the technical field of anti-floating anchor rods, and discloses a bamboo joint type all-steel anti-floating anchor rod, which aims to solve the problem that cracks are easy to appear due to uneven stress of a grouting body. The anchor rod comprises an anchor rod body, wherein grouting bodies are poured between the anchor rod body and anchor holes, a top bearing plate is arranged on the anchor rod body, a plurality of middle bearing plates are sequentially arranged below the top bearing plate at intervals, a bottom bearing plate is arranged below the middle bearing plate, hard sleeves are arranged between the top bearing plate and the middle bearing plate, between the adjacent middle bearing plates and between the middle bearing plate and the bottom bearing plate, and the sleeves are sleeved on the periphery of the anchor rod body. The utility model can reduce the installation times of the bearing bodies, and accurately position the position of each bearing plate by depending on the length of the manufactured sleeve, so that each bearing plate can be arranged on the anchor rod body according to the design requirement, and the bearing plates and the grouting body are more uniformly stressed.
Description
Technical Field
The utility model belongs to the technical field of anti-floating anchor rods, and particularly relates to a bamboo joint type all-steel anti-floating anchor rod.
Background
The anti-floating anchor rod is a structural member arranged for resisting upward displacement of a building on the anti-floating anchor rod, is related to the height and change of an underground water level, and is opposite to the stress direction of a compression-resistant pile.
The anti-floating anchor rod comprises a common anti-floating anchor rod and an enlarged head anti-floating anchor rod, and comprises an anchor hole formed in a soil body, an anchor rod embedded in the anchor hole and a grouting body for filling the anchor hole and the anchor rod; the anchor rod comprises anchor rod reinforcing steel bars and a grouting pipe surrounded by the anchor rod reinforcing steel bars, and meanwhile, in order to facilitate positioning, a centering support is also arranged in the anchor hole; in order to increase the bonding force between the anchor rod structure and the rock-soil mass, a mode of increasing the length of the anchor rod is generally adopted; however, the anchor rod has a stress concentration phenomenon, so that the increase effect of the binding force is slight after the anchor rod exceeds a certain length.
And in order to improve the anti-floating ability of anti-floating anchor rod, enlarged footing anti-floating anchor rod has appeared, and enlarged footing anti-floating anchor rod is with ordinary anti-floating anchor rod's the biggest difference is: the bottom of the anchor hole is provided with the enlarged head, and an enlarged head section is formed at the bottom of the anchor hole after pouring is finished, so that the anti-pulling capacity of the anti-floating anchor rod is improved. For example, the patent with application number 201220060959.0 discloses a bottom-expanding prestressed anti-floating anchor rod, which comprises a metal corrugated pipe penetrating through a waterproof bottom plate, wherein the metal corrugated pipe extends into the lower end part of an anchor rod hole at the lower part of the waterproof bottom plate, and the lower end part of the anchor rod hole is a rod end expanding head; a steel sleeve is embedded outside the metal corrugated pipe in the waterproof bottom plate; the metal corrugated pipe is penetrated with a steel strand, the upper end of the steel strand is fixed on the anchorage device, the lower end of the steel strand is anchored on the anchoring plate in the rod end expansion head, and the anchoring plate is arranged on the anchoring head; and a secondary grouting guide pipe is arranged between the metal corrugated pipe and the steel sleeve.
For the basic structure of the anti-floating anchor rod, a person skilled in the art can understand and understand the basic structure, but in the existing anti-floating anchor rod structure, no matter the common steel bar, the finish rolled deformed steel bar or the anchor cable, no matter the expanded head anti-floating anchor rod or the common non-expanded head anti-floating anchor rod, the lower end of the anchor rod body (the steel bar, the finish rolled deformed steel bar or the anchor cable) is provided with a plate-shaped bearing body, and the acting force between the anchor rod body and the grouting body (the solidified cement mortar) is improved by arranging the bearing body, so that the anti-pulling performance of the anti-floating anchor rod is improved.
In order to ensure the stress uniformity of the anchor rod body (steel bar, finish rolling deformed steel bar or anchor cable), the supporting body can be arranged on the anchor rod body according to the design requirement, but in the specific construction process, because the constructors mostly only install the supporting body by experience, the supporting body is not arranged according to the position required by the design, so that the stress of the anchor rod body is uneven, meanwhile, the stress of each position of the grouting body of the anchoring section is uneven, after the anchor rod body is used for a long time, the problem that cracks are easily generated in the grouting body, particularly, the prestress anti-floating anchor rod, the grouting body does not reach 100% strength when prestress is applied, and the crack condition of the grouting body is more serious.
SUMMERY OF THE UTILITY MODEL
The utility model provides the bamboo-joint-type all-steel-structure anti-floating anchor rod, aiming at solving the problem that cracks are easy to occur due to uneven stress of a grouting body caused by poor installation precision of a bearing body, and the installation precision of the bearing body can be improved, so that the bearing body is ensured to be uniformly distributed on an anchor rod body of an anchoring section, the stress of the anchor rod body and the grouting body is more uniform, the problem that cracks occur due to uneven stress of the grouting body is avoided, and the forming quality of the anti-floating anchor rod is improved.
In order to solve the technical problem, the technical scheme adopted by the utility model is as follows:
the utility model provides an anti-floating anchor rod of bamboo joint type all-steel structure, is including being used for implanting the stock body in the anchor eye, pour the slip casting body that is formed by cement mortar between the stock body and the anchor eye, its characterized in that, install the top loading board on the stock body, the below of top loading board has set gradually a plurality of middle part loading boards at an interval, and the bottom loading board is installed to the below of middle part loading board, is provided with the sleeve pipe of stereoplasm between top loading board and the middle part loading board, between the adjacent middle part loading board, between middle part loading board and the bottom loading board, the sleeve pipe cover is established in the periphery of the stock body and is equipped with each other with the overall dimension of the stock body so that the sleeve pipe can closely laminate with the stock body.
In some embodiments, the circumferential wall of the sleeve is provided with a plurality of through holes, or the periphery of the sleeve is provided with threads, or the periphery of the sleeve is provided with a plurality of protrusions.
In some embodiments, when the anchor rod body is a steel rope, the top bearing plate and the bottom bearing plate are clamped and fastened on the steel rope in a clamping manner, and a through hole matched with the steel rope is formed in the middle of the middle bearing plate.
In some embodiments, when the anchor rod body is a general steel bar or a finish-rolled deformed steel bar, the top bearing plate and the bottom bearing plate are in threaded connection with the general steel bar or the finish-rolled deformed steel bar and locked by a locking nut, and a threaded hole or a through hole matched with the general steel bar or the finish-rolled deformed steel bar is formed in the middle of the middle bearing plate.
In some embodiments, the inner wall of the sleeve is coated with a layer of lubricating grease.
Compared with the prior art, the utility model has the following beneficial effects:
in the use process of the bamboo joint type all-steel structure anti-floating anchor rod, a top bearing plate is fixed on an anchor rod body (a steel rope, a common steel bar or finish-rolled deformed steel), then a section of sleeve is sleeved on the anchor rod body below the top bearing plate, then a first middle bearing plate is sleeved at the lower end of the sleeve, then a section of sleeve is sleeved on the anchor rod body below the first middle bearing plate, then a second middle bearing plate is sleeved below the section of sleeve, circulation is carried out in such a way that each middle bearing plate is installed, namely a section of sleeve is sleeved below the middle bearing plate, the last middle bearing plate is sleeved in a straight mode, then a section of sleeve is sleeved below the last middle bearing plate, and finally the bottom bearing plate is fastened on the anchor rod body.
According to the utility model, the bearing plates (the top bearing plate, the middle bearing plate and the bottom bearing plate) are arranged on the anchor rod body only by fastening the top bearing plate and the bottom bearing plate on the anchor rod body, and the middle bearing plate can be automatically positioned by depending on the sleeve with the designed length.
Meanwhile, when the anchor rod body is a steel rope, the steel rope is poor in straightness, so that the steel rope can be inclined and bent when cement mortar is injected, and the steel rope of the anchoring section can be in a relatively straight state under the action of the sleeve, so that the stress uniformity is improved, and the forming quality of the anti-floating anchor rod is improved.
When the prestressed anti-floating anchor rod is used and prestressed (namely the prestressed anti-floating anchor rod), the acting force can be gradually transmitted to each bearing plate under the action of the sleeve in the stress process of the anchor rod body, so that the stress of each bearing plate is more uniform, the prestress is gradually transmitted to grouting bodies at all positions of the anchoring section, the stress uniformity of the grouting bodies is further improved, and the quality problem of cracks caused by nonuniform stress of the grouting bodies is avoided.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the present invention in which the bolt body is finish rolled deformed steel bar;
fig. 2 is a schematic structural view of another embodiment of the present invention, which shows an enlarged head anti-floating anchor rod;
FIG. 3 is a schematic structural view of another embodiment of the present invention, in which the anchor rod body is a normal steel bar;
FIG. 4 is a schematic structural view of an embodiment of the bushing of the present invention;
FIG. 5 is a schematic structural view of another embodiment of the bushing of the present invention;
the labels in the figure are: 1. anchor eye, 2, the stock body, 3, the slip casting body, 4, top loading board, 5, middle part loading board, 6, bottom loading board, 7, sleeve pipe, 71, arch, 72, through-hole, 8, lock nut, 9, anchor backing plate, 10, nut.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.
With reference to the attached drawings, the bamboo joint type all-steel structural anti-floating anchor rod comprises an anchor rod body 2 (made of steel ropes, common steel bars or finish-rolled threaded steel) implanted in an anchor hole 1, a grouting body 3 formed by cement mortar is poured between the anchor rod body 2 and the anchor hole 1, wherein the anchor hole can be an equal-diameter anchor hole (namely for a common non-expanded-head anti-floating anchor rod), the anchor hole can also be an anchor hole with a large-diameter section and a small-diameter section (namely corresponding to an expanded-head anti-floating anchor rod), a top bearing plate 4 is installed on the anchor rod body 2, a plurality of middle bearing plates 5 are sequentially arranged below the top bearing plate 4 at intervals, a bottom bearing plate 6 is installed below the middle bearing plates 5, a hard sleeve 7 is arranged between the top bearing plate 4 and the middle bearing plates 5, between adjacent middle bearing plates 5 and between the middle bearing plates 5 and the bottom bearing plates 6, the sleeve 7 is sleeved on the periphery of the anchor rod body 2 and is matched with the overall dimension of the anchor rod body 2 so that the sleeve 7 can be tightly attached to the anchor rod body 2. Preferably, the top carrier plate, the middle carrier plate, the bottom carrier plate and the sleeve are made of steel. Among them, stainless steel is preferable for improving corrosion resistance.
In the use of the utility model for mounting the bottom carrier 6, the bottom carrier plate should be used to press the respective middle carrier 5 upward.
In some embodiments the upper end of the anchor rod body 2 is passed out of the anchor eye 1 without the anchor pad 9 and the nut 10 for time prestressing the anchor rod body 2, i.e. obtaining a prestressed anti-floating anchor rod.
In the use process of the bamboo joint type all-steel structure anti-floating anchor rod, a top bearing plate is fixed on an anchor rod body (a steel rope, a common steel bar or finish-rolled deformed steel), then a section of sleeve is sleeved on the anchor rod body below the top bearing plate, then a first middle bearing plate is sleeved at the lower end of the sleeve, then a section of sleeve is sleeved on the anchor rod body below the first middle bearing plate, then a second middle bearing plate is sleeved below the section of sleeve, circulation is carried out in such a way that each middle bearing plate is installed, namely a section of sleeve is sleeved below the middle bearing plate, the last middle bearing plate is sleeved in a straight mode, then a section of sleeve is sleeved below the last middle bearing plate, and finally the bottom bearing plate is fastened on the anchor rod body.
According to the utility model, the bearing plates (the top bearing plate, the middle bearing plate and the bottom bearing plate) are arranged on the anchor rod body only by fastening the top bearing plate and the bottom bearing plate on the anchor rod body, and the middle bearing plate can be automatically positioned by depending on the sleeve with the designed length.
Meanwhile, when the anchor rod body is a steel rope, the steel rope is poor in straightness, so that the steel rope can be inclined and bent when cement mortar is injected, and the steel rope of the anchoring section can be in a relatively straight state under the action of the sleeve, so that the stress uniformity is improved, and the forming quality of the anti-floating anchor rod is improved.
When the prestressed anti-floating anchor rod is used and prestressed (namely the prestressed anti-floating anchor rod), the acting force can be gradually transmitted to each bearing plate under the action of the sleeve in the stress process of the anchor rod body, so that the stress of each bearing plate is more uniform, the prestress is gradually transmitted to grouting bodies at all positions of the anchoring section, the stress uniformity of the grouting bodies is further improved, and the quality problem of cracks caused by nonuniform stress of the grouting bodies is avoided.
In some embodiments, the circumferential wall of the sleeve 7 is provided with a plurality of through holes 72, or the periphery of the sleeve 7 is provided with threads, or the periphery of the sleeve 7 is provided with a plurality of protrusions 71, and the design of the through holes 72, the threads or the protrusions 71 is convenient to increase the contact area with the grout 3, so as to further improve the integrity between the sleeve and the grout 3
In some embodiments, when the anchor rod body 2 is a steel cable, the top bearing plate 4 and the bottom bearing plate 6 are clamped and fastened on the steel cable in a clamping manner, and a through hole adapted to the steel cable is formed in the middle of the middle bearing plate 5.
When the anchor rod body 2 is a steel rope, a centering bracket can be further arranged on the periphery of the steel rope, so that the accuracy of the steel rope at the anchor hole position is improved. As would be understood and appreciated by those skilled in the art for a centering bracket.
In some embodiments, when the anchor rod body 2 is a general steel bar or a finish-rolled deformed steel bar, the top bearing plate 4 and the bottom bearing plate 6 are in threaded connection with the general steel bar or the finish-rolled deformed steel bar and locked by the locking nut 8, and a threaded hole or a through hole matched with the general steel bar or the finish-rolled deformed steel bar is formed in the middle of the middle bearing plate 5.
That is, the concept of the utility model can be used for both the non-enlarged head anti-floating anchor rod and the enlarged head anti-floating anchor rod; the anti-floating anchor rod can be used for common anti-floating anchor rods and prestressed anti-floating anchor rods, and has universality.
In some embodiments, the inner wall of the sleeve 7 is coated with a layer of lubricating grease to facilitate sliding nesting of the sleeve 7 over the anchor rod body 2, and also to coat the anchor rod body 2 with a layer of lubricating grease to prevent corrosion.
The middle bearing body can ensure that the middle bearing body is in a horizontal state under the clamping action of the vertically adjacent sleeves, and at least can ensure that each middle bearing body is in a horizontal state even if the top bearing body and the middle bearing body are inclined in the installation process, so that the stress uniformity of the bearing bodies is further improved. In the prior art, all the bearing bodies are independently installed, so that the condition that the bearing bodies are inclined to cause uneven stress on two sides of the bearing bodies is easily caused, and further uneven stress of the grouting body is caused.
Claims (5)
1. The utility model provides an anti-floating anchor rod of bamboo joint type all-steel structure, is including being used for implanting the stock body in the anchor eye, pour the slip casting body that is formed by cement mortar between the stock body and the anchor eye, its characterized in that, install the top loading board on the stock body, the below of top loading board has set gradually a plurality of middle part loading boards at an interval, and the bottom loading board is installed to the below of middle part loading board, is provided with the sleeve pipe of stereoplasm between top loading board and the middle part loading board, between the adjacent middle part loading board, between middle part loading board and the bottom loading board, the sleeve pipe cover is established in the periphery of the stock body and is equipped with each other with the overall dimension of the stock body so that the sleeve pipe can closely laminate with the stock body.
2. The bamboo joint type all-steel structure anti-floating anchor rod as claimed in claim 1, wherein the circumferential wall of the sleeve is provided with a plurality of through holes, or the periphery of the sleeve is provided with threads, or the periphery of the sleeve is provided with a plurality of protrusions.
3. The bamboo joint type all-steel structural anti-floating anchor rod as claimed in claim 1 or 2, wherein when the anchor rod body is a steel rope, the top bearing plate and the bottom bearing plate are clamped and fastened on the steel rope in a clamping manner, and a through hole matched with the steel rope is formed in the middle of the middle bearing plate.
4. The bamboo joint type all-steel structural anti-floating anchor rod according to claim 1 or 2, wherein when the anchor rod body is a common steel bar or a finish-rolled deformed steel bar, the top bearing plate and the bottom bearing plate are in threaded connection with the common steel bar or the finish-rolled deformed steel bar and locked by a lock nut, and a threaded hole or a through hole matched with the common steel bar or the finish-rolled deformed steel bar is formed in the middle of the middle bearing plate.
5. The bamboo joint type all-steel structure anti-floating anchor rod as claimed in claim 1, wherein the inner wall of the sleeve is coated with a lubricating grease layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123147987.4U CN216379510U (en) | 2021-12-15 | 2021-12-15 | Bamboo joint type all-steel structural anti-floating anchor rod |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123147987.4U CN216379510U (en) | 2021-12-15 | 2021-12-15 | Bamboo joint type all-steel structural anti-floating anchor rod |
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| CN216379510U true CN216379510U (en) | 2022-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115369870A (en) * | 2022-09-22 | 2022-11-22 | 中国五冶集团有限公司 | Post-cast anti-floating anchor rod |
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2021
- 2021-12-15 CN CN202123147987.4U patent/CN216379510U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115369870A (en) * | 2022-09-22 | 2022-11-22 | 中国五冶集团有限公司 | Post-cast anti-floating anchor rod |
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