CN215857676U - Smooth surface free section PSB finish rolling prestress anti-floating anchor rod - Google Patents
Smooth surface free section PSB finish rolling prestress anti-floating anchor rod Download PDFInfo
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- CN215857676U CN215857676U CN202121472471.4U CN202121472471U CN215857676U CN 215857676 U CN215857676 U CN 215857676U CN 202121472471 U CN202121472471 U CN 202121472471U CN 215857676 U CN215857676 U CN 215857676U
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Abstract
The utility model belongs to the technical field of PSB finish rolling thread prestressed anti-floating anchor rods, and discloses a smooth surface free section PSB finish rolling prestressed anti-floating anchor rod, which aims to solve the problem that the durability of the anti-floating anchor rod is influenced because the existing PSB finish rolling prestressed anti-floating anchor rod is easy to corrode. The utility model comprises a smooth surface free section PSB finish rolling screw-thread steel anchor rod body placed in a pile hole, wherein an anchoring body is poured between the smooth surface free section PSB finish rolling screw-thread steel anchor rod body and the pile hole, the smooth surface free section PSB finish rolling screw-thread steel anchor rod body comprises a prestress section, a smooth surface free section and an anchoring section which are sequentially arranged from top to bottom, the prestress section is positioned above a poured concrete cushion layer and is provided with a prestress matching anchor plate and a prestress matching anchor head for applying prestress, the smooth surface free section is positioned between the lower part of the concrete cushion layer and the anchoring section, and an anti-corrosion sleeve is sleeved on the periphery of the smooth surface free section.
Description
Technical Field
The utility model belongs to the technical field of PSB finish rolling thread prestress anti-floating anchor rods, and particularly relates to a smooth surface free section PSB finish rolling prestress anti-floating anchor rod.
Background
With the utilization of underground space and the increasing of the foundation burial depth of buildings, the anti-floating problem also comes along, and the selection of a proper anti-floating measure is very important. Compared with the anti-floating measures such as a dewatering and draining method, a weight pressing method and the like, the anti-floating anchor rod has the advantages of strong stratum adaptability, stress dispersion, convenience in construction, cost saving and the like, and is widely applied to the field of civil engineering.
PSB finish rolling screw-thread steel has begun to use in anti-floating anchor rod engineering, and ordinary PSB finish rolling screw-thread steel appearance adopts the screw thread form, is carrying out the in-process that the anticorrosive sleeve pipe of free section was makeed, and reinforcing bar both sides screw thread can produce destruction to anticorrosive sleeve pipe, influences anticorrosive sheathed tube anticorrosive effect to a certain extent, and then influences the durability of anti-floating anchor rod. How to control the damage of the steel bar body to the anti-corrosion sleeve and ensure the anti-corrosion effect of the anti-corrosion sleeve is an urgent problem of PSB finish rolling deformed steel bar anti-floating anchor rod engineering.
SUMMERY OF THE UTILITY MODEL
The utility model provides a smooth surface free section PSB finish rolling prestressed anti-floating anchor rod, aiming at solving the problem that the durability of the anti-floating anchor rod is influenced because the existing PSB finish rolling prestressed anti-floating anchor rod is easy to corrode.
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 plain noodles free segment PSB finish rolling prestressing force, its characterized in that, including putting into the plain noodles free segment PSB finish rolling screw-thread steel anchor rod body in the stake hole, pour the anchor body between plain noodles free segment PSB finish rolling screw-thread steel anchor rod body and the stake hole, the plain noodles free segment PSB finish rolling screw-thread steel anchor rod body is including prestressing force section, plain noodles free segment and the anchor section that from top to bottom sets gradually, the prestressing force section is located the top of the concrete cushion of pouring and sets the supporting anchor block of prestressing force and the supporting anchor head of prestressing force that is used for applying prestressing force, plain noodles free segment is located between the below and the anchor section of concrete cushion, the peripheral cover of plain noodles free segment is equipped with anticorrosive sleeve pipe.
In some embodiments, a flexible sealing ring is disposed between the corrosion-resistant sleeve and the smooth free section.
In some embodiments, a plurality of carriers are spaced on the anchoring section.
In some embodiments, a reinforcing steel bar mating anchor plate and a reinforcing steel bar mating anchor head are further sleeved on the prestress section above the prestress mating anchor plate and the prestress mating anchor head, and a building foundation or a water-resistant plate located above the concrete cushion is poured on the peripheries of the prestress mating anchor plate, the prestress mating anchor head, the reinforcing steel bar mating anchor plate and the reinforcing steel bar mating anchor head.
In some embodiments, the pre-stressed mating anchor plate, pre-stressed mating anchor head, rebar mating anchor plate, and rebar mating anchor head are made from PSB finish-rolled steel,
Compared with the prior art, the utility model has the following beneficial effects:
according to the smooth free section PSB finish rolling prestressed anti-floating anchor rod, the smooth free section PSB finish rolling deformed steel anchor rod body is adopted, so that the free section anti-corrosion sleeve is prevented from being damaged by the rod body threads in the construction process, the anti-corrosion performance of the anti-corrosion sleeve is improved, the anti-corrosion sleeve is more tightly attached to anti-corrosion grease and the anchor rod body, and the durability of the anti-floating anchor rod is further improved.
According to the utility model, the prestress section above the prestress matching anchor plate and the prestress matching anchor head is also sleeved with the reinforcing steel bar matching anchor plate and the reinforcing steel bar matching anchor head, so that the prestress combined body formed by the prestress combined body and the smooth free section PSB finish rolling deformed steel bar body can improve the anti-floating capacity and durability of the anti-floating anchor rod.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the present invention in which the anchor has an enlarged head section formed by high pressure jet-grouting;
fig. 2 is a schematic longitudinal sectional structural view of another embodiment of the present invention.
The labels in the figure are: the method comprises the following steps of 1, smooth free section PSB finish rolling deformed steel bar anchor rod body, 2, reinforcing steel bar matched anchor plate, 3, reinforcing steel bar matched anchor head, 4, anticorrosive sleeve, 5, flexible sealing ring, 6, bearing body, 7, building foundation or water-resistant plate, 8, anchoring body, 9, prestress matched anchor plate, 10, prestress matched anchor head and 11, concrete cushion.
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.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The smooth surface free section PSB finish rolling prestressed anti-floating anchor rod comprises a smooth surface free section PSB finish rolling deformed steel anchor rod body 1 placed in a pile hole, an anchoring body 8 is poured between the smooth surface free section PSB finish rolling deformed steel anchor rod body 1 and the pile hole, the smooth surface free section PSB finish rolling deformed steel anchor rod body 1 comprises a prestress section, a smooth surface free section and an anchoring section which are sequentially arranged from top to bottom, the prestress section 1 is positioned above a poured concrete cushion layer 11 and is provided with a prestress matching anchor plate 9 and a prestress matching anchor head 10 for applying prestress, the smooth surface free section is positioned between the lower part of the concrete cushion layer 11 and the anchoring section, and a peripheral anti-corrosion sleeve 4 is sleeved on the smooth surface free section. The length of the anchoring section is designed according to construction (namely the length of the anchoring section is the length of a bearing layer of the smooth free section PSB finish rolling screw-thread steel anchor rod body extending into the ground), and the length of the smooth free section is the length between the concrete cushion layer 11 and the upper end face of the bearing layer.
The smooth surface free section is formed by that the PSB finish rolling deformed steel bar anchor rod body is not provided with threads on the smooth surface free section, and the prestress section and the anchoring section are formed by that the threads are arranged on the two sections of the PSB finish rolling deformed steel bar anchor rod body.
In some embodiments, a flexible sealing ring 5 is arranged between the corrosion-resistant sleeve 4 and the smooth free section.
According to the smooth free section PSB finish rolling prestressed anti-floating anchor rod, the smooth free section PSB finish rolling deformed steel anchor rod body ensures that the free section anti-corrosion sleeve is not damaged by the rod body threads in the construction process, the anti-corrosion performance of the anti-corrosion sleeve is improved, the anti-corrosion sleeve is more tightly attached to anti-corrosion grease and the anchor rod body, and the durability of the anti-floating anchor rod is further improved.
In some embodiments, a plurality of carriers 6 are spaced on the anchoring section.
In some embodiments, the pre-stress section above the pre-stress mating anchor plate 9 and the pre-stress mating pad anchor head 10 is further sleeved with a reinforcing steel bar mating anchor plate 2 and a reinforcing steel bar mating anchor head 3, and the building foundation or the water-resistant plate 7 located above the concrete cushion 11 is poured on the peripheries of the pre-stress mating anchor plate 9, the pre-stress mating anchor head 10, the reinforcing steel bar mating anchor plate 2 and the reinforcing steel bar mating anchor head 3.
The prestress matching anchor plate 9, the prestress matching anchor head 10, the reinforcing steel bar matching anchor plate 2 and the reinforcing steel bar matching anchor head 3 are provided with threaded holes meshed with threads on the smooth surface free section PSB finish rolling deformed steel bar anchor rod body 1.
In some embodiments, the pre-stressed mating anchor plate, pre-stressed mating anchor head, rebar mating anchor plate, and rebar mating anchor head are made from PSB finish-rolled steel.
The smooth free section PSB finish rolling deformed steel bar prestressed anti-floating anchor rod comprises a smooth free section PSB finish rolling deformed steel bar anchor rod body 1, a reinforcing steel bar matched anchor plate 2, a reinforcing steel bar matched anchor head 3, an anti-corrosion sleeve 4, a flexible sealing ring 5, a plurality of supporting bodies 6, a building foundation or water-resistant plate 7, an anchoring body 8, a prestressed matched anchor plate 9, a prestressed matched anchor head 10 and a concrete cushion layer 11.
When the smooth free section PSB finish rolling deformed steel bar prestress anti-floating anchor rod structure is constructed, firstly, holes are formed, meanwhile, a supporting body 6, a flexible sealing ring 5, an anti-corrosion sleeve 4, anti-corrosion grease and a grouting pipe are sequentially arranged on a smooth free section PSB finish rolling deformed steel bar body 1, the smooth free section PSB finish rolling deformed steel bar body 1 is placed into a drill hole and fixed, broken stones are filled in the drill hole and then are grouted to form concrete anchor solid or are subjected to high-pressure grouting and reaming to form an expanded head anchor body, a concrete cushion layer 11 is poured after the completion, after the concrete cushion layer 11 or the anchor body 8 reaches designed tensile strength, a prestress matching anchor plate 9 and a prestress matching anchor head 10 are sequentially arranged on the smooth free section PSB finish rolling deformed steel bar body 1, the prestress is tensioned according to the design requirement, so that the prestress matching anchor plate 9 is tightly attached to the concrete cushion layer 11 or the anchor body 8 through the prestress, meanwhile, a reinforcing steel bar matched anchor plate 2 and a reinforcing steel bar matched anchor head 3 are sequentially installed at the upper end of the smooth surface free section PSB finish rolling deformed steel bar anchor rod body 1 according to requirements, a building foundation or a water-resistant plate 7 is poured after the completion, and then the smooth surface free section PSB finish rolling deformed steel bar prestress anti-floating anchor rod structure is formed. If the prestress matching anchor plate 9 is adopted to replace a steel bar matching anchor plate 2, and the prestress matching anchor head 10 is adopted to replace a steel bar matching anchor head 3, the prestress matching anchor plate and the prestress matching anchor head are sequentially installed on the smooth surface free section PSB finish rolling deformed steel bar body 1, foundation or water resistant plate concrete is poured after the completion, and prestress is tensioned according to design requirements after the strength of the foundation or water resistant plate concrete reaches the design strength, so that the prestress matching anchor plate 9 is tightly attached to a building foundation or water resistant plate 7 through prestress, and the structure also belongs to the structure of the smooth surface free section PSB finish rolling deformed steel bar prestress anti-floating anchor rod.
Claims (5)
1. The utility model provides an anti-floating anchor rod of plain noodles free segment PSB finish rolling prestressing force, its characterized in that, including putting into the plain noodles free segment PSB finish rolling screw-thread steel anchor rod body in the stake hole, pour the anchor body between plain noodles free segment PSB finish rolling screw-thread steel anchor rod body and the stake hole, the plain noodles free segment PSB finish rolling screw-thread steel anchor rod body is including prestressing force section, plain noodles free segment and the anchor section that from top to bottom sets gradually, the prestressing force section is located the top of the concrete cushion of pouring and sets the supporting anchor block of prestressing force and the supporting anchor head of prestressing force that is used for applying prestressing force, plain noodles free segment is located between the below and the anchor section of concrete cushion, the peripheral cover of plain noodles free segment is equipped with anticorrosive sleeve pipe.
2. The smooth free section PSB finish rolling prestressed anti-floating anchor rod as claimed in claim 1, wherein a flexible sealing ring is arranged between the corrosion-resistant sleeve and the smooth free section.
3. The smooth free section PSB finish rolling prestressed anti-floating anchor rod as claimed in claim 1, wherein a plurality of supporting bodies are arranged on the anchoring section at intervals.
4. The smooth free section PSB finish rolling prestressed anti-floating anchor rod as claimed in claim 1, wherein the prestressed section above the prestressed assorted anchor plate and the prestressed assorted anchor head is further sheathed with a reinforcing bar assorted anchor plate and a reinforcing bar assorted anchor head, and the peripheries of the prestressed assorted anchor plate, the prestressed assorted pad anchor head, the reinforcing bar assorted anchor plate and the reinforcing bar assorted anchor head are poured with a building foundation or a water-resisting plate above a concrete cushion layer.
5. The smooth free-section PSB finish-rolled prestressed anti-floating anchor rod as claimed in claim 4, wherein said prestressed mating anchor plate, prestressed mating anchor head, rebar mating anchor plate and rebar mating anchor head are made of PSB finish-rolled steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121472471.4U CN215857676U (en) | 2021-06-30 | 2021-06-30 | Smooth surface free section PSB finish rolling prestress anti-floating anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121472471.4U CN215857676U (en) | 2021-06-30 | 2021-06-30 | Smooth surface free section PSB finish rolling prestress anti-floating anchor rod |
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| Publication Number | Publication Date |
|---|---|
| CN215857676U true CN215857676U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121472471.4U Active CN215857676U (en) | 2021-06-30 | 2021-06-30 | Smooth surface free section PSB finish rolling prestress anti-floating anchor rod |
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| CN (1) | CN215857676U (en) |
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2021
- 2021-06-30 CN CN202121472471.4U patent/CN215857676U/en active Active
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