CN219219085U

CN219219085U - Pre-buried device capable of improving bending resistance of foundation

Info

Publication number: CN219219085U
Application number: CN202320239674.1U
Authority: CN
Inventors: 刘辉煌; 遆浩; 杨润浩; 王永波
Original assignee: China Construction Science and Industry Corp Ltd
Current assignee: China Construction Science and Industry Corp Ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-06-20
Anticipated expiration: 2033-01-30

Abstract

The utility model discloses a pre-buried device capable of improving the bending resistance of a foundation, which comprises: the device comprises a base, a top seat and a prestress structure, wherein the top seat is positioned above the base, and the base and the top seat are arranged at intervals; the prestress structure can be tensioned to generate prestress, one end of the prestress structure is connected with the base, and the other end of the prestress structure is connected with the top seat; the prestress structure can apply acting force towards the base to the top seat after being tensioned. The pre-buried device is placed in a position to be pre-buried, concrete is poured in the pre-buried position, after the concrete reaches strength, the pre-stress structure is stretched, stress is applied to the pre-stress structure in advance, and acting force towards the base can be applied to the top seat after the pre-stress structure is stretched. By adopting the embedded device, the bending-resistant bearing capacity of the foundation is improved, the concrete is always kept in a pressed state under the bending state of the foundation, and the embedded part form of the base, the top seat and the prestress structure is convenient to assemble and construct, so that the construction efficiency is improved, and the material consumption is reduced.

Description

Pre-buried device capable of improving bending resistance of foundation

Technical Field

The utility model relates to the technical field related to building facilities, in particular to a pre-buried device capable of improving the bending resistance of a foundation.

Background

With the development of green buildings, more and more buildings have higher modeling requirements, higher heights, larger spans, longer overhanging and irregular modeling. On the premise of pursuing green development and development in the aspect of unique modeling, the steel structure is more applied in the aspect, can realize quick construction and low-carbon construction, and can realize higher span and more complex modeling.

With the special requirements of the superstructure of the building, the corresponding foundation needs to be correspondingly ensured, so that the foundation can bear larger bending moment bearing capacity. When the foundation is made, the embedded part and the concrete are usually matched for use. The existing embedded part is an anchor rod, and can meet the requirements of conventional span and bending moment. However, when the span is larger and the height is higher, the larger bending moment is generated, and the conventional anchor rod cannot meet the requirement. In order to improve the bending resistance of the foundation embedded parts, measures such as increasing the number of anchor rods, improving the concrete mark and the like are generally adopted, so that the measures not only waste materials, but also are inconvenient to construct.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the pre-embedding device capable of improving the bending resistance of the foundation, the pre-embedding device has better bending resistance, the material loss is reduced, and the construction is convenient.

According to the embodiment of the utility model, the embedded device capable of improving the bending resistance of the foundation comprises: the device comprises a base, a top seat and a prestress structure, wherein the top seat is positioned above the base, and the base and the top seat are arranged at intervals; the prestress structure can be tensioned to generate prestress, one end of the prestress structure is connected with the base, and the other end of the prestress structure is connected with the top seat; the prestress structure can apply acting force towards the base to the top seat after being tensioned.

The embedded device capable of improving the bending resistance of the foundation has at least the following beneficial effects: by adopting the structure, the pre-buried device is placed in the position to be pre-buried, the concrete is poured in the pre-buried position, after the concrete reaches the strength, the pre-stress structure is stretched, stress is applied to the pre-stress structure in advance, and acting force towards the base can be applied to the top seat after the pre-stress structure is stretched. By adopting the embedded device, the bending-resistant bearing capacity of the foundation is improved, the concrete is always kept in a pressed state under the bending state of the foundation, and the embedded part form of the base, the top seat and the prestress structure is convenient to assemble and construct, so that the construction efficiency is improved, and the material consumption is reduced.

According to some embodiments of the utility model, the prestress structure comprises a prestress unit and two locking nuts, wherein threaded parts are arranged at two ends of the prestress unit, the two ends of the prestress unit penetrate through the base seat and the top seat respectively, and the threaded parts of the prestress unit are in threaded connection with the corresponding locking nuts.

According to some embodiments of the utility model, the prestressing unit comprises: the two ends of the prestress rod penetrate through the base and the top seat respectively, and the threaded part is arranged at the end part of the prestress rod; the sleeve is arranged between the base and the footstock, the sleeve is sleeved on the outer side of the prestress rod, the sleeve is provided with an exhaust port and a grouting port, and the exhaust port and the grouting port are communicated with the area between the interior of the sleeve and the prestress rod.

According to some embodiments of the utility model, the prestress structure further comprises two buffer springs sleeved at the upper end and the lower end of the sleeve.

According to some embodiments of the utility model, the prestressing structures are a plurality of, and the prestressing structures are arranged along the circumference of the base at intervals.

According to some embodiments of the utility model, the top seat comprises a supporting plate and a bearing table arranged above the supporting plate, wherein the upper end and the lower end of the bearing table are respectively provided with an abutting surface and a mounting surface, the mounting surface is arranged in parallel with the abutting surface, the cross section area of the abutting surface is larger than that of the mounting surface, and the abutting surface abuts against the upper surface of the supporting plate.

According to some embodiments of the utility model, the landing comprises: the first plate body is connected with the supporting plate, and the abutting surface is the plate surface of the first plate body; the second plate body is arranged above the first plate body, and the mounting surface is the plate surface of the second plate body; the connecting assembly is arranged between the first plate body and the second plate body, the upper end of the connecting assembly is connected with the first plate body, and the lower end of the connecting assembly is connected with the second plate body.

According to some embodiments of the present utility model, the connection assembly includes an annular plate body and a plurality of reinforcing connection plates disposed around the annular plate body, wherein upper and lower ends of the annular plate body are respectively connected with the first plate body and the second plate body, one side of the reinforcing connection plate is connected with the annular plate body, and upper and lower ends of the reinforcing connection plate are respectively connected with the first plate body and the second plate body; when the prestress structures are multiple, one prestress structure is arranged between every two adjacent reinforced connecting plates.

According to some embodiments of the utility model, the lower surface of the support plate is vertically provided with a plurality of shear plates.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a first view angle structure of a pre-embedding apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a second view angle structure of the embedding device according to the embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of the pre-stressing structure, base and top base;

reference numerals:

the device comprises a base 10, a top seat 20, a supporting plate 21, a bearing table 22, a first plate 221, a second plate 222, an annular plate 223, a reinforcing connecting plate 224 and a shear plate 23;

the device comprises a prestress structure 30, a prestress unit 31, a prestress rod 311, a sleeve 312 lock nut 32 and a buffer spring 33;

the cushion 34, the exhaust pipe 40 and the grouting pipe 50.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

As shown in fig. 1, 2 and 3, the pre-embedding device capable of improving the bending resistance of a foundation according to an embodiment of the present utility model includes: the device comprises a base 10, a top seat 20 and a prestress structure 30, wherein the top seat 20 is positioned above the base 10, and the base 10 and the top seat 20 are arranged at intervals; the prestress structure 30 can be tensioned to generate prestress, one end of the prestress structure 30 is connected with the base 10, and the other end is connected with the top seat 20; wherein, the prestressing structure 30 can exert a force towards the base 10 on the top base 20 after stretching.

According to the pre-embedding device capable of improving the bending resistance of the foundation, the structure is adopted, the pre-embedding device is placed in a position to be pre-embedded, concrete is poured in the pre-embedded position, after the concrete reaches the strength, the pre-stressing structure 30 is stretched, stress is applied to the pre-stressing structure 30 in advance, and acting force towards the base 10 can be applied to the top seat 20 after the pre-stressing structure 30 is stretched. By adopting the embedded device, the bending-resistant bearing capacity of the foundation is improved, the concrete is always kept in a pressed state under the bending state of the foundation, and the embedded part form of the combination of the base 10, the top seat 20 and the prestressed structure 30 is convenient to assemble and construct, so that the construction efficiency is improved, and the material consumption is reduced.

It can be understood that, as shown in fig. 1, 2 and 3, in some embodiments of the present utility model, the pre-stressing structure 30 includes a pre-stressing unit 31 and two locking nuts 32, two ends of the pre-stressing unit 31 are provided with threaded portions, two ends of the pre-stressing unit 31 respectively penetrate the base 10 and the top base 20, and the threaded portions of the pre-stressing unit 31 are in threaded connection with the corresponding locking nuts 32. By adopting the structure, after the end part, close to the top seat 20, of the prestress unit 31 is tensioned, the locking nut 32 positioned at the top seat 20 is screwed down, so that the concrete can be pressed by the top seat 20, the basic bending bearing capacity is improved, and the structure is simple and the operation is convenient.

Specifically, as shown in fig. 1, 2 and 3, in some embodiments of the present utility model, the prestressing unit 31 includes: the two ends of the pre-stress rod 311 respectively penetrate through the base 10 and the top seat 20, and the threaded part is arranged at the end part of the pre-stress rod 311; the sleeve 312 is arranged between the base 10 and the top base 20, the sleeve 312 is sleeved outside the pre-stress rod 311, and the sleeve 312 is provided with an air outlet and a grouting opening, and the air outlet and the grouting opening are communicated with the area between the interior of the sleeve 312 and the pre-stress rod 311. Through the arrangement, the locking nut 32 at the upper end is screwed after the pre-stressing rod 311 is stretched, grouting is carried out to tightly wrap the pre-stressing rod 311, the pre-stressing rod 311 is protected from being corroded, durability is improved, and through grouting, the slurry not only wraps the pre-stressing rod 311, but also contacts the inner wall of the sleeve 312, and the reliability of the pre-stressing unit 31 is further improved. The exhaust port communicates with the exhaust pipe 40, and the grouting port communicates with the grouting pipe 50.

In some embodiments of the present utility model, the pre-stressing structure 30 further includes two buffer springs 33 sleeved on the upper and lower ends of the sleeve 312, where the buffer springs 33 are capable of buffering the damage of the pre-stressing rod 311 to the concrete during the tensioning process.

In some embodiments of the present utility model, the number of the pre-stressing structures 30 is plural, and the pre-stressing structures 30 are circumferentially and alternately arranged along the base 10, so as to improve the bending load-bearing capacity of the foundation, and have better structural stability.

It will be appreciated that, as shown in fig. 1, 2 and 3, in some embodiments of the present utility model, the top base 20 includes a support plate 21 and a receiving platform 22 disposed above the support plate 21, the receiving platform 22 has an abutment surface and a mounting surface at its upper and lower ends, respectively, the mounting surface is disposed parallel to the abutment surface, the cross-sectional area of the abutment surface is larger than the cross-sectional area of the mounting surface, and the abutment surface abuts against the upper surface of the support plate 21. It should be noted that, the pre-stressing rod 311 is inserted into the abutting surface of the supporting plate 21 and the receiving table 22, and the device or the facility is welded or installed above the installation surface through other connection structures, and the thickness formed by the overlapping of the supporting plate 21 and the receiving table 22 can reduce the deformation degree of the pre-stressing structure 30 to the top seat 20 during tensioning, and the cross-sectional area of the abutting surface is larger than that of the installation surface, so that the installation surface is prevented from being deformed due to the tensioning influence, so that the installation surface can meet the installation requirement of the device or the facility.

As shown in fig. 1 and 2, in some embodiments of the utility model, the landing 22 includes: the first plate 221 is connected to the support plate 21, and the contact surface is the plate surface of the first plate 221; the second plate 222 is disposed above the first plate 221, and the mounting surface is a plate surface of the second plate 222; the connecting component is arranged between the first plate body 221 and the second plate body 222, the upper end of the connecting component is connected with the first plate body 221, the lower end of the connecting component is connected with the second plate body 222, and the connecting component is simple and reasonable in structure and good in bearing capacity.

Specifically, as shown in fig. 1 and 2, in some embodiments of the present utility model, the connection assembly includes an annular plate body 223 and a plurality of reinforcing connection plates 224 disposed around the annular plate body 223, upper and lower ends of the annular plate body 223 are respectively connected with the first plate body 221 and the second plate body 222, one side of the reinforcing connection plates 224 is connected with the annular plate body 223, and upper and lower ends of the reinforcing connection plates 224 are respectively connected with the first plate body 221 and the second plate body 222; wherein when there are a plurality of the pre-stressing structures 30, one pre-stressing structure 30 is arranged between two adjacent reinforcing connection plates 224. By adopting the structure, the adjacent pre-stressing structures 30 are separated by the reinforced connecting plates 224, so that other non-tensioned pre-stressing structures 30 are prevented from being influenced, and the bearing capacity of the bearing table 22 is further improved due to the arrangement mode of the annular plate body 223 and the reinforced connecting plates 224. The connection between the support plate 21 and the first plate 221, between the two ends of the annular plate 223 and the first plate 221 and the second plate 222, between the reinforcing connection plate 224 and the annular plate 223, and between the two ends of the reinforcing connection plate 224 and the first plate 221 and the second plate 222 are all welded and fixedly connected.

As shown in fig. 1 and 2, in some embodiments of the present utility model, a plurality of shear plates 23 are vertically disposed on the lower surface of the support plate 21, further improving the shearing resistance of the embedment device.

As shown in fig. 1 to 3, in the present embodiment, a cushion block 34 sleeved on the pre-stressing rod 311 is disposed between the base 10 and the lock nut 32 located below, and between the top base 20 and the lock nut 32 located above.

It should be noted that, in some embodiments of the present utility model, the base 10 and the top base 20 may be formed by welding steel materials. After the base 10, the top seat 20 pre-stressing rod 311 and the sleeve 312 of the pre-embedding device are assembled in advance, the pre-embedding device is integrally hoisted into a bearing platform with bound bottom ribs, and is installed and positioned, so that the problem of construction space limitation can be solved. And binding reinforcing steel bars of the bearing platform and pouring concrete to form a whole after the pre-burying device is positioned. After the concrete reaches the strength, the jack is used for stretching the upper part of the prestressed rod 311, symmetrical tension and graded stretching are adopted in the stretching process, and the tension value and the increment of the stress rod stretching process are controlled in double. After the tensioning is completed, the locking nut 32 at the upper part of the pre-stressing rod 311 is screwed, grouting is carried out, and the pre-stressing rod 311 is tightly wrapped.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The present utility model is, of course, not limited to the above-described embodiments, and one skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the utility model, which are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims

1. Can improve pre-buried device of basis bending resistance, its characterized in that includes:

a base (10);

the top seat (20) is positioned above the base (10), and the base (10) and the top seat (20) are arranged at intervals;

the prestress structure (30) can be tensioned to generate prestress, one end of the prestress structure (30) is connected with the base (10), and the other end is connected with the top seat (20);

wherein the pre-stressing structure (30) is capable of exerting a force on the top seat (20) towards the base (10) after tensioning.

2. The pre-buried device that can improve basic bending resistance according to claim 1, characterized in that, prestressing force structure (30) include prestressing force unit (31) and two lock nut (32), prestressing force unit (31) both ends all are provided with screw thread portion, prestressing force unit (31) both ends wear to establish respectively base (10) and footstock (20), and prestressing force unit (31) screw thread portion with corresponding lock nut (32) threaded connection.

3. Pre-buried device capable of increasing the bending resistance of a foundation according to claim 2, characterized in that the pre-stressing unit (31) comprises:

the two ends of the prestress rod (311) are respectively penetrated through the base (10) and the top seat (20), and the threaded part is arranged at the end part of the prestress rod (311);

sleeve (312) set up in between base (10) and footstock (20), sleeve (312) cover is located prestressing force stick (311) outside, just be provided with gas vent and grout mouth on sleeve (312), the gas vent with the grout mouth all communicates the inside of sleeve (312) with the region between prestressing force stick (311).

4. A pre-embedding device capable of improving the bending resistance of a foundation according to claim 3, wherein the pre-stressing structure (30) further comprises two buffer springs (33) sleeved at the upper end and the lower end of the sleeve (312).

5. The pre-embedding device capable of improving the bending resistance of a foundation according to claim 1, wherein the pre-stressing structures (30) are a plurality of, and the pre-stressing structures (30) are circumferentially and alternately arranged along the base (10).

6. The pre-buried device capable of improving foundation bending resistance according to claim 1, wherein the top base (20) comprises a supporting plate (21) and a supporting table (22) arranged above the supporting plate (21), the upper end and the lower end of the supporting table (22) are respectively provided with an abutting surface and a mounting surface, the mounting surface is arranged in parallel with the abutting surface, the cross section area of the abutting surface is larger than that of the mounting surface, and the abutting surface abuts against the upper surface of the supporting plate (21).

7. The embedment device capable of increasing the bending resistance of a foundation according to claim 6, characterized in that the reception table (22) comprises:

the first plate body (221) is connected with the supporting plate (21), and the abutting surface is the plate surface of the first plate body (221);

the second plate body (222) is arranged above the first plate body (221), and the mounting surface is the plate surface of the second plate body (222);

the connecting assembly is arranged between the first plate body (221) and the second plate body (222), the upper end of the connecting assembly is connected with the first plate body (221), and the lower end of the connecting assembly is connected with the second plate body (222).

8. The pre-embedding device capable of improving foundation bending resistance according to claim 7, wherein the connecting assembly comprises an annular plate body (223) and a plurality of reinforcing connecting plates (224) arranged around the annular plate body (223), the upper end and the lower end of the annular plate body (223) are respectively connected with the first plate body (221) and the second plate body (222), one side of the reinforcing connecting plates (224) is connected with the annular plate body (223), and the upper end and the lower end of the reinforcing connecting plates (224) are respectively connected with the first plate body (221) and the second plate body (222);

wherein when the number of the prestress structures (30) is plural, one prestress structure (30) is arranged between two adjacent reinforcing connection plates (224).

9. Pre-buried device capable of increasing the bending resistance of a foundation according to claim 6, characterized in that the lower surface of the supporting plate (21) is vertically provided with a plurality of shear plates (23).