Basement anti-pulling structure adopting pre-stressed anchor rods

Abstract

The utility model provides a basement anti-pulling structure adopting pre-stressed anchor rods, and belongs to the technical field of building construction. The device comprises a mounting hole formed in the ground of a basement, a pre-stressed anchor rod is arranged in the mounting hole, and a plurality of positioners which are uniformly arranged at intervals are arranged in the mounting hole. The corrugated pipe is arranged on the outer side of the prestressed twisted steel, the anticorrosive grease layer is poured into the corrugated pipe, contact between the prestressed twisted steel and outside air can be reduced, the purposes of corrosion prevention and water prevention are achieved, the anchor rod waterproof structure is arranged in the floor, contact between the prestressed twisted steel and the outside air can be further reduced, and the service life of the floor is prolonged. The service life of the prestressed twisted steel can be prolonged, the prestressed twisted steel arranged in the corrugated pipe can be kept vertical through the corrugated pipe, the structure is more stable, and the prestressed twisted steel can be stably installed in a structural bottom plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building construction technical field relates to a basement anti -pulling structure of adoption prestressed anchor rod. BACKGROUND

[0002] Prestressed anti -floating anchor rod is used more and more in high durability anti -floating measure, and the prestressed anti -floating anchor rod anchoring body is compressed throughout the process, and has good mechanical properties and durability.

[0003] At present, the end of the anchor rod is mostly anchored directly by nut screwing, the air tightness of this connection mode is poor, the anchor rod in the foundation slab is easy to rust in contact with external air, and water flow also flows to the foundation slab along the anchor rod, and the waterproof performance is poor.

[0004] A prefabricated combined assembly type anti -floating anti -tension prestressed anchor rod piece is disclosed in Chinese patent [application number: 202020724847.5], which comprises unbonded steel or main reinforcement steel, prestressed anchor rod hollow pipe column and anchor locking nut;The unbonded steel or main reinforcement steel is inserted into the pipe column, the prefabricated hollow pipe column is used as a support, the two ends of the above-mentioned steel are tensioned, and the prestressed anchor rod piece is formed after the prestressed anchor rod piece is locked at the two ends of the pipe column by the nut. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above -mentioned problem, provides a basement anti -pulling structure of adoption prestressed anchor rod.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A basement anti -pulling structure of adoption prestressed anchor rod, including the installation hole that sets up on the basement ground, the installation hole inside be provided with prestressed anchor rod, the installation hole inside be provided with a plurality of interval even setting's positioner, the prestressed anchor rod include by the concrete anchoring layer, the bellows and the prestressed threaded steel bar that set up successively from outside to inside, the bellows inside fill with the anticorrosive grease layer, the basement ground be provided with the bottom plate, the prestressed threaded steel bar's top end and bottom end all be provided with steel backing plate and nut, the steel backing plate and concrete anchoring layer between be provided with spiral rib, the prestressed anchor rod top end inserts to the bottom plate, the bottom plate still be equipped with anchor rod waterproof structure.

[0008] In the above-mentioned basement anti -pulling structure of adoption prestressed anchor rod, the anchor rod waterproof structure includes the bottom plate waterproof layer that sets up in the bottom plate bottom, self -adhesive polymer modified asphalt waterproof roll material and cement base penetrative crystalline waterproof paint.

[0009] In the aforementioned basement pull-out structure employing prestressed anchors, the bottom slab waterproof layer, self-adhesive polymer-modified bitumen waterproof membrane, and cement-based penetrating crystalline waterproof coating are sequentially installed from top to bottom.

[0010] In the aforementioned basement pull-out resistant structure employing prestressed anchor rods, a waterproof rubber collar is provided at the connection between the prestressed anchor rod and the base slab.

[0011] In the aforementioned basement pull-out resistance structure using prestressed anchor rods, the connection between the prestressed anchor rod and the base plate is further provided with a sealing layer filled with asphalt waterproof sealant.

[0012] In the aforementioned basement pull-out structure employing prestressed anchor rods, a concrete-sealed anchor is provided at the top of the prestressed anchor rod. The concrete-sealed anchor is located on the upper side of the steel pad at the top of the prestressed threaded steel bar, and the top of the concrete-sealed anchor is located on the upper side of the base plate. The nut at the top of the prestressed threaded steel bar is located inside the concrete-sealed anchor.

[0013] In the aforementioned basement pull-out resistance structure using prestressed anchor rods, the portion of the prestressed anchor rod inserted into the base slab is also fitted with a water-swellable sealing ring.

[0014] In the aforementioned basement pull-out resistance structure using prestressed anchor rods, the base slab is also provided with several punching shear reinforcement bars arranged circumferentially along the prestressed anchor rods.

[0015] In the aforementioned basement pull-out resistant structure using prestressed anchor rods, a polymer waterproof layer is also provided between the bottom of the concrete closed anchor and the base plate.

[0016] In the aforementioned basement pull-out resistance structure employing prestressed anchors, a concrete layer is poured on the upper side of the base slab.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] 1. This utility model reduces the contact between the prestressed threaded steel bars and the outside air by setting a corrugated pipe on the outside of the prestressed threaded steel bars and injecting an anti-corrosion grease layer inside the corrugated pipe, thereby achieving the purpose of corrosion prevention and waterproofing. Secondly, setting an anchor waterproof structure inside the floor can further reduce the contact between the prestressed threaded steel bars and the outside air, thus extending the service life of the prestressed threaded steel bars. Setting a corrugated pipe can also keep the prestressed threaded steel bars set inside the corrugated pipe vertical and make the structure more stable, so that they can be stably installed in the structural base plate.

[0019] 2. Installing a waterproof layer on the base slab, self-adhesive polymer-modified bitumen waterproof membrane, and cement-based penetrating crystalline waterproof coating can play a waterproofing role and prevent water on the upper side of the base slab from seeping into the corrugated pipe and causing corrosion of the prestressed threaded steel bars inside the corrugated pipe.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a partial sectional view of the present invention.

[0023] In the diagram, 1 is the basement floor, 2 is the mounting hole, 3 is the prestressed anchor, 4 is the locator, 5 is the concrete anchoring layer, 6 is the corrugated pipe, 7 is the prestressed threaded steel bar, 8 is the anti-corrosion grease layer, 9 is the base slab, 10 is the steel pad, 11 is the nut, 12 is the spiral reinforcement, 13 is the anchor waterproofing structure, 14 is the base slab waterproofing layer, 15 is the self-adhesive polymer modified bitumen waterproof membrane, 16 is the cement-based penetrating crystalline waterproof coating, 17 is the waterproof rubber collar, 18 is the bitumen waterproof sealant filling sealing layer, 19 is the concrete closed anchor, 20 is the water-swellable waterstop ring, 21 is the punching shear reinforcement bar, 22 is the polymer waterproofing layer, and 23 is the concrete layer. Detailed Implementation

[0024] like Figure 1 and Figure 2 As shown, a basement pull-out resistance structure using prestressed anchor rods includes installation holes 2 set on the basement floor 1, with prestressed anchor rods 3 installed in the installation holes 2, and a plurality of evenly spaced locators 4 installed in the installation holes 2. The prestressed anchor rod 3 includes a concrete anchoring layer 5, a corrugated pipe 6, and prestressed threaded steel bars 7 arranged sequentially from the outside to the inside. The corrugated pipe 6 is filled with an anti-corrosion grease layer 8. A base plate 9 is set on the basement floor 1. Steel pads 10 and nuts 11 are set at the top and bottom of the prestressed threaded steel bars 7. Spiral reinforcement 12 is set between the steel pads 10 and the concrete anchoring layer 5. The top of the prestressed anchor rod 3 is inserted into the base plate 9. The base plate 9 is also provided with an anchor rod waterproof structure 13.

[0025] This invention reduces the contact between the prestressed threaded steel bar 7 and the outside air by setting a corrugated pipe 6 on the outside of the corrugated pipe and injecting an anti-corrosion grease layer 8 inside the corrugated pipe, thus achieving the purpose of corrosion prevention and waterproofing. Secondly, setting an anchor waterproof structure 13 inside the floor can further reduce the contact between the prestressed threaded steel bar and the outside air, thereby extending the service life of the prestressed threaded steel bar. Setting a corrugated pipe also makes the prestressed threaded steel bar set inside the corrugated pipe vertical and the structure more stable, so that it can be stably installed in the structural base plate.

[0026] Specifically, the anchor waterproof structure 13 includes a base slab waterproof layer 14, a self-adhesive polymer-modified bitumen waterproof membrane 15, and a cement-based penetrating crystalline waterproof coating 16, all installed at the bottom of the base slab 9. These components are arranged sequentially from top to bottom. The base slab waterproof layer 14, the self-adhesive polymer-modified bitumen waterproof membrane 15, and the cement-based penetrating crystalline waterproof coating 16 provide waterproofing, preventing water from seeping into the corrugated pipe and causing corrosion of the prestressed threaded steel bars inside.

[0027] Preferably, a waterproof rubber collar 17 is provided at the connection between the prestressed anchor rod 3 and the base plate 9, and an asphalt waterproof sealant filling sealing layer 18 is also provided at the connection between the prestressed anchor rod 3 and the base plate 9. Providing the waterproof rubber collar 17 and the asphalt waterproof sealant filling sealing layer 18 can further improve the waterproof performance.

[0028] Specifically, the top of the prestressed anchor rod 3 is also provided with a concrete sealing anchor 19. The concrete sealing anchor 19 is located on the upper side of the steel pad 10 at the top of the prestressed threaded steel bar 7, and the top of the concrete sealing anchor 19 is located on the upper side of the base plate 9. The nut 11 at the top of the prestressed threaded steel bar 7 is located inside the concrete sealing anchor 19. The asphalt waterproof sealant filling the sealing layer 18 can seal the opening at the top of the corrugated pipe, thereby improving the airtightness of the prestressed anchor rod 3 and reducing the contact between the prestressed anchor rod and the outside air.

[0029] Preferably, the portion of the prestressed anchor rod 3 inserted into the base plate 9 is also fitted with a water-swellable sealing ring 20. The water-swellable sealing ring 20 is installed inside the corrugated pipe. When water enters the corrugated pipe, the water-swellable sealing ring 20 will expand and form a sealing ring inside the corrugated pipe to block the seepage of water.

[0030] Specifically, the base plate 9 is also provided with several punching shear reinforcement bars 21 arranged around the prestressed anchor rods 3.

[0031] Preferably, a polymer waterproof layer 22 is provided between the bottom of the concrete closed anchor 19 and the base plate 9. The polymer waterproof layer 22 can prevent water from seeping into the base plate through the connection between the base plate and the concrete closed anchor.

[0032] Specifically, a concrete layer 23 is poured on the upper side of the base plate 9.

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0034] Although this article frequently uses terms such as basement floor 1, mounting hole 2, prestressed anchor rod 3, locator 4, concrete anchoring layer 5, corrugated pipe 6, prestressed threaded steel bar 7, anti-corrosion grease layer 8, base plate 9, steel pad 10, nut 11, spiral reinforcement 12, anchor rod waterproof structure 13, base plate waterproof layer 14, self-adhesive polymer modified bitumen waterproof membrane 15, cement-based penetrating crystallizing waterproof coating 16, waterproof rubber collar 17, bitumen waterproof sealant filling sealing layer 18, concrete closed anchor 19, water-swellable waterstop ring 20, punching shear reinforcement 21, polymer material waterproof layer 22, concrete layer 23, etc., these terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A basement pull-out resistance structure using prestressed anchor rods, comprising mounting holes (2) disposed on the basement floor (1), characterized in that, The installation hole (2) is provided with a prestressed anchor rod (3), and the installation hole (2) is provided with a number of evenly spaced locators (4). The prestressed anchor rod (3) includes a concrete anchoring layer (5), a corrugated pipe (6) and a prestressed threaded steel bar (7) arranged sequentially from the outside to the inside. The corrugated pipe (6) is filled with an anti-corrosion grease layer (8). A base plate (9) is provided on the basement floor (1). The top and bottom ends of the prestressed threaded steel bar (7) are provided with steel pads (10) and nuts (11). A spiral bar (12) is provided between the steel pad (10) and the concrete anchoring layer (5). The top end of the prestressed anchor rod (3) is inserted into the base plate (9). The base plate (9) is also provided with an anchor rod waterproof structure (13).

2. The basement pull-out resistance structure using prestressed anchors according to claim 1, characterized in that, The anchor waterproof structure (13) includes a bottom plate waterproof layer (14) set at the bottom of the bottom plate (9), a self-adhesive polymer modified bitumen waterproof membrane (15), and a cement-based penetrating crystallizing waterproof coating (16).

3. The basement pull-out resistance structure using prestressed anchors according to claim 2, characterized in that, The bottom waterproof layer (14), the self-adhesive polymer modified bitumen waterproof membrane (15), and the cement-based penetrating crystalline waterproof coating (16) are arranged sequentially from top to bottom.

4. The basement pull-out resistance structure using prestressed anchors according to claim 3, characterized in that, A waterproof rubber collar (17) is provided at the connection between the prestressed anchor rod (3) and the base plate (9).

5. The basement pull-out resistance structure using prestressed anchors according to claim 3, characterized in that, The connection between the prestressed anchor rod (3) and the base plate (9) is also provided with an asphalt waterproof sealant filling layer (18).

6. The basement pull-out resistance structure using prestressed anchors according to claim 3, characterized in that, The prestressed anchor rod (3) is also provided with a concrete closed anchor (19) at the top. The concrete closed anchor (19) is located on the upper side of the steel pad (10) at the top of the prestressed threaded steel bar (7). The top of the concrete closed anchor (19) is located on the upper side of the bottom plate (9). The nut (11) at the top of the prestressed threaded steel bar (7) is located inside the concrete closed anchor (19).

7. The basement pull-out resistance structure using prestressed anchors according to claim 3, characterized in that, The prestressed anchor rod (3) inserted into the bottom plate (9) is also fitted with a water-swellable sealing ring (20).

8. The basement pull-out resistance structure using prestressed anchors according to claim 3, characterized in that, The base plate (9) is also provided with several punching shear bars (21) arranged around the prestressed anchor rod (3).

9. The basement pull-out resistance structure using prestressed anchors according to claim 6, characterized in that, A polymer waterproof layer (22) is also provided between the bottom of the concrete closed anchor (19) and the base plate (9).

10. The basement pull-out resistance structure using prestressed anchors according to claim 9, characterized in that, A concrete layer (23) is poured on the upper side of the base plate (9).

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