CN210288447U - Connection structure of prefabricated basis and ground - Google Patents
Connection structure of prefabricated basis and ground Download PDFInfo
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- CN210288447U CN210288447U CN201920575031.8U CN201920575031U CN210288447U CN 210288447 U CN210288447 U CN 210288447U CN 201920575031 U CN201920575031 U CN 201920575031U CN 210288447 U CN210288447 U CN 210288447U
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Abstract
The utility model provides a connection structure of prefabricated basis and ground belongs to prefabricated assembled structure technical field, and aim at solves traditional prefabricated basis and is connected with the ground, with high costs, has the problem of structure slope. The concrete pouring device comprises a prefabricated foundation, a leveling device and a reinforcing component, wherein a grouting hole for pouring concrete and an operation hole for operating the leveling device are respectively formed in the prefabricated foundation along the height direction of the prefabricated foundation. Through operation levelling device for the gradient between prefabricated foundation and the ground satisfies the design requirement, pours concrete into through the grout hole for the gap department between prefabricated foundation and the ground forms cast in situ concrete tie coat, thereby forms stable connection with prefabricated foundation and ground, naturally, needs fill handle hole and grout hole respectively through sealing anchor concrete at last. Therefore, the inclination between the prefabricated foundation and the foundation meets the design requirement, the prefabricated foundation is prevented from inclining, and the safety of the upper structure is guaranteed.
Description
Technical Field
The utility model relates to a prefabricated assembled structure technical field, concretely relates to connection structure of prefabricated basis and ground.
Background
In the construction of prefabricated foundations, it is a difficult problem how to make the prefabricated foundations properly sit on the foundation. Unlike conventional cast-in-place foundations, prefabricated foundations are prone to tilting when sitting directly on the foundation, resulting in tilting of the superstructure. The traditional method is to level the surface of the foundation or the bottom of the prefabricated foundation, but the method is time-consuming and labor-consuming and has poor economic benefit. Therefore, it is highly desirable to provide a connection structure of prefabricated foundation and foundation with short construction period and low cost.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information is prior art that is known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a connection structure and a construction method of a prefabricated foundation and a foundation, which are characterized in that the prefabricated foundation is placed on the foundation, and the height of the prefabricated foundation is adjusted by a leveling bolt, so that the inclination of the prefabricated foundation reaches the design requirement; then self-compacting concrete is injected from the reserved hole in the top of the prefabricated foundation, and then the reserved hole is filled with anchor sealing concrete, so that the problems of high cost and structural inclination caused by connection of the prefabricated foundation and the foundation are solved.
In order to realize the purpose, the technical scheme of the utility model is that:
a prefabricated foundation and foundation connection structure, comprising:
the prefabricated foundation is provided with an operation hole and a grouting hole along the height direction;
the leveling device is embedded at the bottom end of the operation hole;
the cast-in-place concrete connecting layer is formed by pouring concrete into the grouting holes and is positioned between the prefabricated foundation and the foundation, so that the prefabricated foundation and the foundation form an integral structure;
the reinforcing part is embedded around the leveling device in the prefabricated foundation in advance;
and the anchor sealing concrete is used for filling the operation hole and the grouting hole respectively.
Compared with the prior art, the utility model discloses profitable technological effect lies in:
the utility model provides a connection structure of prefabricated basis and ground, it includes prefabricated basis, levelling device, reinforcement member, and prefabricated basis sets up the grout hole that is used for the cast-in-place concrete and the handle hole that is used for operating levelling device respectively along its direction of height. Through operation levelling device for the gradient between prefabricated foundation and the ground satisfies the design requirement, pours concrete into through the grout hole for the gap department between prefabricated foundation and the ground forms cast in situ concrete tie coat, thereby forms stable connection with prefabricated foundation and ground, naturally, needs fill handle hole and grout hole respectively through sealing anchor concrete at last. Therefore, the inclination between the prefabricated foundation and the foundation meets the design requirement, the prefabricated foundation is prevented from inclining, and the safety of the upper structure is guaranteed.
Furthermore, in order to obtain materials conveniently, the leveling device is a leveling bolt, the lower end of the leveling bolt extends out of the bottom surface of the prefabricated foundation to be connected with the base plate, and the base plate is fixed on the foundation. Considering that the leveling bolt cannot be well connected with the foundation, the foundation is fixedly provided with the base plate, and the leveling bolt is fixedly connected with the base plate, so that the connection between the leveling bolt and the foundation is indirectly completed, and the connection firmness of the whole system is ensured.
Further, since transverse stress is generated around the leveling device, a reinforcing member needs to be provided, taking convenience in material drawing into consideration and saving cost, and the reinforcing member is a spiral steel bar.
Furthermore, because self-compacting concrete possesses not shrink and the little expansion characteristic of oneself, in order to reduce the influence that cast in situ concrete articulamentum caused to the connection structure is whole as far as possible, prevent that the structure warp, cast in situ concrete articulamentum is poured by self-compacting concrete and is formed.
Further, the prefabricated foundation is an independent foundation, a bar foundation, a crossed bar foundation or a raft foundation in consideration of the wide applicability. That is, the structure of the prefabricated foundation is not limited herein.
Drawings
Fig. 1 is an end view of a connection structure of a prefabricated foundation and a foundation according to an embodiment of the present invention.
In the figure:
1-prefabricating a foundation; 2-operation hole; 3-leveling bolts; 4-a backing plate; 5-spiral reinforcing steel bars; 6-casting a concrete connecting layer in situ; 7-foundation; 8-grouting holes.
Detailed Description
The present invention provides a connection structure of a prefabricated foundation and a foundation, which is described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention. For convenience of description, the directions of "up" and "down" in the following description are the same as the directions of "up" and "down" in the drawings, but this should not be construed as limiting the technical solution of the present invention.
Example one
The structure composition of the connection structure of the prefabricated foundation and the foundation of the present invention is described in detail with reference to fig. 1.
A prefabricated foundation and foundation connection structure, comprising: the method comprises the following steps that a foundation 1, a leveling device, a reinforcing component and the like are prefabricated, and an operation hole 2 and a grouting hole 8 are reserved in the prefabricated foundation 1 along the height direction of the prefabricated foundation; the leveling device is embedded at the bottom end of the operation hole 2; the cast-in-place concrete connecting layer 6 is formed by pouring concrete into the grouting holes 8, and the cast-in-place concrete connecting layer 6 is positioned between the prefabricated foundation 1 and the foundation 7, so that the two form an integral structure; the reinforcing parts are embedded around the leveling device in the prefabricated foundation 1; the operation hole 2 and the grouting hole 8 are tightly filled with anchor sealing concrete respectively.
Specifically, the connection structure of the prefabricated foundation and the foundation of the embodiment includes a prefabricated foundation 1, a leveling device, and a reinforcing member, wherein the prefabricated foundation 1 is provided with a grouting hole 8 for pouring concrete and an operation hole 2 for operating the leveling device along the height direction thereof, respectively. Through operating levelling device in follow handle hole 2 for the gradient between prefabricated basis 1 and the ground 7 satisfies the design requirement, through the grout hole 8 concreting, makes the gap department between prefabricated basis 1 and the ground 7 form cast in situ concrete tie coat 6, thereby forms stable connection with prefabricated basis 1 and ground 7, and of course, the last needs are filled handle hole 2 and grout hole 8 respectively through the anchor sealing concrete. Thus, the inclination between the prefabricated foundation 1 and the foundation 7 meets the design requirement, the prefabricated foundation 1 is prevented from inclining, and the safety of the superstructure is ensured.
In this embodiment, more preferably, for convenience of material taking, the leveling device is a leveling bolt 3, the lower end of the leveling bolt 3 extends out of the bottom surface of the prefabricated foundation 1 to be connected with a backing plate 4, and the backing plate 4 is fixed on the foundation 7. Considering that the leveling bolt 3 and the foundation 7 cannot be well connected, the foundation 7 is fixedly provided with the backing plate 4, and the leveling bolt 3 and the backing plate 4 are fixedly connected, so that the connection between the leveling bolt 3 and the foundation 7 is indirectly completed, and the connection firmness of the whole connection structure is ensured.
In this embodiment, it is more preferable that the reinforcing member is the spiral reinforcing bar 5 because a transverse stress is generated around the leveling device, and the reinforcing member is needed to be provided in consideration of convenience in material drawing and cost saving.
In the present embodiment, it is more preferable that the self-compacting concrete has non-shrinkage and self-micro-expansion characteristics, and in order to reduce the influence of the cast-in-place concrete connection layer 6 on the whole connection structure as much as possible and prevent the structure from being deformed, the cast-in-place concrete connection layer 6 is formed by pouring the self-compacting concrete.
In this embodiment, more preferably, the prefabricated foundation is an independent foundation, a bar, a cross bar or a raft, in view of the wide applicability. That is, the structure of the prefabricated foundation 1 is not limited herein.
With continuing reference to fig. 1, the present invention further provides a construction method of the connection structure between the prefabricated foundation and the foundation, the construction method comprising:
firstly, providing a prefabricated foundation 1, leveling bolts 3 and spiral steel bars 5 for later use, wherein the prefabricated foundation 1 is respectively reserved with an operation hole 2 and a grouting hole 8 along the height direction, the leveling bolts 3 are embedded at the bottom ends of the operation holes 2, and the spiral steel bars 5 are arranged around the leveling bolts 3;
secondly, placing the prefabricated foundation 1 on a foundation 7, operating the leveling bolts 3 from the operation holes 2, specifically, rotating and adjusting the extending distance of the screw rods in the leveling bolts 3 to enable the inclination of the prefabricated foundation 1 to meet the design requirement;
then, self-compacting concrete is injected from a grouting hole 8 at the top of the prefabricated foundation 1 to fill a gap between the bottom of the prefabricated foundation 1 and the foundation 7, so that a cast-in-place concrete connecting layer 6 is formed;
and finally, after the self-compacting concrete reaches the specified strength, filling the operation hole 2 and the grouting hole 8 with anchor sealing concrete respectively.
In this embodiment, it is more preferable that a backing plate 4 is further included, the backing plate 4 is fixed on the foundation 7, and the lower end of the leveling bolt 3 extends out of the bottom surface of the prefabricated foundation 1 and is connected with the backing plate 4. The base plate 4 is respectively connected with the leveling bolt 3 and the foundation 7, so that the connection firmness of the whole connection structure can be ensured.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention in any way. Any changes and modifications of the above disclosure by those skilled in the art are within the scope of the appended claims.
Claims (5)
1. A connection structure of a prefabricated foundation and a foundation, comprising:
the prefabricated foundation is provided with an operation hole and a grouting hole along the height direction;
the leveling device is embedded at the bottom end of the operation hole;
the cast-in-place concrete connecting layer is formed by pouring concrete into the grouting holes and is positioned between the prefabricated foundation and the foundation, so that the prefabricated foundation and the foundation form an integral structure;
the reinforcing part is embedded around the leveling device in the prefabricated foundation in advance;
and the anchor sealing concrete is used for filling the operation hole and the grouting hole respectively.
2. The connection structure of the prefabricated foundation and the foundation as claimed in claim 1, wherein the leveling device is a leveling bolt, the lower end of the leveling bolt extends out of the bottom surface of the prefabricated foundation to be connected with a backing plate, and the backing plate is fixed on the foundation.
3. The prefabricated foundation and foundation connection structure of claim 1, wherein said reinforcing member is a reinforcing screw.
4. The precast foundation and foundation connection structure of claim 1, wherein the cast-in-place concrete connection layer is formed by self-compacting concrete pouring.
5. The connection structure of a prefabricated foundation and a foundation according to claim 1, wherein the prefabricated foundation is an independent foundation, a bar foundation, a crossed bar foundation or a raft foundation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920575031.8U CN210288447U (en) | 2019-04-25 | 2019-04-25 | Connection structure of prefabricated basis and ground |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920575031.8U CN210288447U (en) | 2019-04-25 | 2019-04-25 | Connection structure of prefabricated basis and ground |
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| CN210288447U true CN210288447U (en) | 2020-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185054A (en) * | 2019-04-25 | 2019-08-30 | 上海市政建设有限公司 | A kind of connection structure and construction method of prefabricated foundation and ground |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185054A (en) * | 2019-04-25 | 2019-08-30 | 上海市政建设有限公司 | A kind of connection structure and construction method of prefabricated foundation and ground |
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