CN215926040U - Assembled plate type foundation adopting post-cast strip mode - Google Patents

Assembled plate type foundation adopting post-cast strip mode Download PDF

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Publication number
CN215926040U
CN215926040U CN202121799259.9U CN202121799259U CN215926040U CN 215926040 U CN215926040 U CN 215926040U CN 202121799259 U CN202121799259 U CN 202121799259U CN 215926040 U CN215926040 U CN 215926040U
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foundation
transverse steel
steel bar
post
sleeve
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CN202121799259.9U
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付建明
郑和华
苏鼎
陈晓光
刘正伟
赵光泰
王冠惠
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Shandong Electric Power Engineering Consulting Institute Corp Ltd
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Shandong Electric Power Engineering Consulting Institute Corp Ltd
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Abstract

The utility model discloses an assembled plate foundation adopting a post-cast strip mode, which adopts the technical scheme that: the steel plate edge part foundation comprises a middle foundation and an edge part foundation, wherein a first transverse steel bar penetrating through the middle foundation is arranged in the middle foundation, a second transverse steel bar is arranged in the edge part foundation, and one end of the second transverse steel bar extends out of the side face of the edge part foundation; the two sides of the middle foundation are respectively spliced with the side foundations, and the extending end of the first transverse steel bar is connected with the extending end of the second transverse steel bar through a connecting sleeve; and the splicing seams of the middle part foundation and the side part foundation are filled with post-pouring belts. The utility model adopts a post-pouring belt mode, thereby reducing the connection difficulty and improving the connection reliability; and each foundation plate is vertically hoisted in place without splicing the bottom plates in the horizontal direction, so that the construction difficulty is reduced.

Description

Assembled plate type foundation adopting post-cast strip mode
Technical Field
The utility model relates to the field of assembly type foundations, in particular to an assembly type plate foundation adopting a post-cast strip mode.
Background
The fabricated foundation has the advantages of short construction period, high processing quality, convenience in field construction and the like, and is widely applied to the fields of buildings, power transmission and the like. However, the inventor finds that the vertical position of the bottom plate of the assembly type foundation is not easy to move in the horizontal direction after being in place, so that the construction difficulty of the traditional assembly type plate type foundation structure is high, and the construction progress is influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide an assembled plate type foundation adopting a post-cast strip mode, and the post-cast strip mode is adopted, so that the connection difficulty is reduced, and the connection reliability is improved; and each foundation plate is vertically hoisted in place without splicing the bottom plates in the horizontal direction, so that the construction difficulty is reduced.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the embodiment of the utility model provides an assembled plate type foundation adopting a post-cast strip mode, which comprises a middle foundation and an edge foundation, wherein a first transverse steel bar penetrating through the middle foundation is arranged in the middle foundation, a second transverse steel bar is arranged in the edge foundation, and one end of the second transverse steel bar extends out of the side face of the edge foundation;
the two sides of the middle foundation are respectively spliced with the side foundations, and the extending end of the first transverse steel bar is connected with the extending end of the second transverse steel bar through a connecting sleeve; and the splicing seams of the middle part foundation and the side part foundation are filled with post-pouring belts.
As a further implementation manner, the connecting sleeve is a half grouting sleeve, and a grouting opening is formed in the top of the half grouting sleeve.
As a further implementation, the connection sleeve is a threaded sleeve.
As a further implementation, the connection sleeve is a compression sleeve.
As a further implementation, the post-cast strip width is greater than the connecting sleeve length.
As a further implementation mode, a main column is arranged at the top of the middle foundation, and foundation bolts are buried in the main column.
As a further implementation, the main column is of an integrated structure or a split structure.
As a further implementation, the edge base is of a stepped configuration.
As a further realization, the outer side of the edge base has an inclined section.
As a further implementation mode, cushion layers are arranged at the bottoms of the middle part foundation and the edge part foundation.
The utility model has the following beneficial effects:
(1) the edge part foundation and the middle part foundation do not need to be completely aligned when being spliced, a splicing seam which is longer than the length of the connecting sleeve is reserved to fill the post-cast strip, the horizontal moving process can be saved through the post-cast strip, the construction difficulty is reduced, and the construction efficiency is accelerated; and adopt the parallel mode of laying of post-cast strip, only need carry out the steel bar connection of single direction, improve the reliability of connecting when reducing the connection degree of difficulty.
(2) The steel bars in the foundation are connected together through the connecting sleeve, so that the construction period can be shortened under the condition of ensuring the shearing resistance; the type of the connecting sleeve can be selected according to actual requirements, and the connecting sleeve can be a half grouting sleeve, a threaded sleeve or a squeezing sleeve.
(3) The utility model only needs to vertically hoist each foundation plate in place, and does not need to splice the bottom plates in the horizontal direction, thereby greatly reducing the construction difficulty.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a top view of a first embodiment of the present invention;
FIG. 3 is a cross-sectional view of a first embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the first embodiment of the present invention before assembly;
FIG. 5 is a schematic view of a half grout sleeve connection according to a first embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 7 is a schematic structural view of a threaded sleeve according to a third embodiment of the present invention;
FIG. 8 is a schematic view of a compression sleeve according to a fourth embodiment of the present invention;
the steel structure comprises, by weight, 1-1 parts of a first edge foundation, 1-2 parts of a middle foundation, 1-3 parts of a second edge foundation, 1-4 parts of a main column, 1-5 parts of a cushion layer, 1-6 parts of a post-cast strip, 1-7 parts of foundation bolts, 1-8 parts of connecting sleeves, 2-1 parts of second transverse steel bars, 2-2 parts of first transverse steel bars, 2-3 parts of third transverse steel bars, 3-1 parts of semi-grouting sleeves, 3-2 parts of threaded sleeves, 3-3 parts of extrusion sleeves.
Detailed Description
The first embodiment is as follows:
the embodiment provides an assembled plate type foundation adopting a post-cast strip mode, as shown in fig. 1-3, which comprises a middle foundation 1-2, a first edge foundation 1-1 and a second edge foundation 1-3, wherein the first edge foundation 1-1 is spliced on one side of the middle foundation 1-2, and the second edge foundation 1-3 is spliced on the other side of the middle foundation 1-2. The top of the middle foundation 1-2 is provided with a main column 1-4, and foundation bolts 1-7 or inserted angle steel are embedded in the main column 1-4 and used for connecting the foundation and the superstructure.
Furthermore, the main column 1-4, the first edge foundation 1-1, the second edge foundation 1-3 and the middle foundation 1-2 are all manufactured in prefabricated part factories, so that the on-site concrete pouring amount can be greatly reduced, and the prefabricated part is particularly suitable for the condition of poor construction roads.
In the embodiment, the main columns 1-4 are concrete columns, the main columns 1-4 and the middle foundation 1-2 can be integrally manufactured, the length of the concrete main column is small, and the concrete main column and the middle foundation 1-2 are integrally prefabricated when being convenient to transport and hoist; when the main column 1-4 is longer, the main column 1-4 can be divided into two parts, and the construction site is connected by adopting a grouting sleeve.
Furthermore, the middle foundation 1-2, the first edge foundation 1-1 and the second edge foundation 1-3 are spliced on the upper portion of the cushion layer 1-5, all components are only required to be vertically hoisted in place, splicing of the cushion layer 1-5 in the horizontal direction is not required, and construction difficulty is reduced. The cushion layer 1-5 can adopt a prefabrication mode, the flatness of the base plate is ensured, and the phenomenon that the base plate is not tightly attached to the cushion layer 1-5 is prevented. Preferably, the underlayment 1-5 is a concrete floor.
In this embodiment, the length of each base slab is consistent, and the width is limited by the transportation conditions and should not be greater than 2.4 m. Each prefabricated foundation plate should rationally set up the hole for hoist, can take one's place smoothly after guaranteeing to hoist. The first edge base 1-1 and the second edge base 1-3 are of stepped structures; the middle foundation 1-2, the first edge foundation 1-1 and the second edge foundation 1-3 are all concrete foundations, and bottom plates are arranged at the bottoms of the middle foundation 1-2, the first edge foundation 1-1 and the second edge foundation 1-3.
Further, as shown in fig. 4, a plurality of first transverse steel bars 2-2 are arranged in the middle foundation 1-2, and the first transverse steel bars 2-2 are arranged at intervals from top to bottom; and the first transverse steel bar 2-2 penetrates through the middle foundation 1-2, and two ends of the first transverse steel bar extend out of the side face of the middle foundation 1-2 to form extending ends.
And a second transverse steel bar 2-1 corresponding to the first transverse steel bar 2-2 is arranged in the first edge foundation 1-1, and the second transverse steel bar 2-1 extends out of the side surface of the first edge foundation 1-3 to form an extending end. And a third transverse steel bar 2-3 corresponding to the first transverse steel bar 2-2 is arranged in the second side part foundation 1-3, and the third transverse steel bar 2-3 extends out of the side surface of the second side part foundation 1-3 to form an extending end.
Furthermore, the extending end of the first transverse steel bar 2-2 is connected with the extending ends of the second transverse steel bar 2-1 and the third transverse steel bar 2-3 through connecting sleeves 1-8 respectively, and the steel bars in the foundation are connected together through the connecting sleeves 1-8, so that the construction period is shortened, the construction efficiency is improved, and the construction cost is reduced under the condition that the shearing resistance of the steel bars is ensured.
In the embodiment, the connecting sleeve 1-8 adopts a half grouting sleeve 3-1; as shown in fig. 5, the half grouting sleeve 3-1 has a sleeve structure with a grouting opening at one side, the half grouting sleeve 3-1 has a hollow structure inside, and one end of the half grouting sleeve has an internal thread.
Processing the extending end of the second transverse steel bar 2-1 and then extending into the threaded end of the semi-grouting sleeve 3-1, processing the extending end of the first transverse steel bar 2-2 and then extending into the other end of the semi-grouting sleeve 3-1, aligning the end parts of the first transverse steel bar 2-2 and the second transverse steel bar 2-1, adjusting the threaded end, grouting fine aggregate concrete from a grouting port, maintaining and completing the connection of the transverse steel bars; the connection stability of the transverse steel bars is ensured through the semi-grouting sleeve 3-1.
It should be noted that, when the grouting sleeve is used to connect the stressed steel bars, the length of the steel bar extending into the sleeve at one side is not less than 8 times of the diameter of the steel bar.
Further, concrete with the strength not lower than that of each foundation is poured in the splicing seams of the middle foundation 1-2, the first edge foundation 1-1 and the second edge foundation 1-3 to form a post-cast strip 1-6; the direction of the post-cast strip 1-6 is vertical to the transverse steel bar, and the post-cast strips 1-6 on the two sides of the middle foundation 1-2 are parallel to each other. By adopting the arrangement mode of the post-cast strips 1-6, only the steel bars in a single direction need to be connected, so that the connection difficulty is reduced, and the connection reliability is improved.
The width of the post-cast strip 1-6 is determined according to the length of the connecting sleeve 1-8, and is not less than 1.5 times the length of the connecting sleeve 1-8. The concrete strength of the post-cast strip 1-6 is greater than the concrete strength and ductility of each foundation slab; the modified material such as steel fiber can be added into the concrete to improve the strength and ductility of the concrete.
When the plate type foundation bottom plate is too large in size, for example, the side length of the bottom plate exceeds 8m, the post-cast strip splicing scheme is very flexible, and multiple splicing seams can be arranged.
Example two:
the present embodiment provides a fabricated panel foundation using a post-cast strip method, as shown in fig. 6, which is different from the first embodiment in that the outer side surfaces of the first and second side foundations 1-1 and 1-3 have inclined sections.
In the embodiment, the first side foundation 1-1 and the second side foundation 1-3 are provided with slopes at set height positions, no transverse exposed steel bar is arranged at the slopes, the concrete volume is reduced, and the cost is saved.
Other structures are the same as those of the first embodiment, and are not described herein again.
Example three:
the present embodiment provides a fabricated panel foundation in a post-cast strip manner, and the first embodiment thereof is different in that a coupling sleeve 1-8 is a threaded sleeve 3-2, and as shown in fig. 7, the interior of the threaded sleeve 3-2 is internally threaded.
The end parts of the transverse steel bars of each foundation plate are processed, the threaded sleeves 3-2 are screwed at the end parts of the first transverse steel bars 2-2 of the middle foundations 1-2, and then the second transverse steel bars 2-1 and the third transverse steel bars 2-3 are aligned with the central line of the first transverse steel bars 2-2; and reversely adjusting the threaded sleeve 3-2 to complete the connection of the transverse steel bars. And finally, pouring concrete with the strength not lower than that of each component to form a post-pouring strip 1-6, and finishing the plate type foundation whole.
The threaded sleeve 3-2 of the embodiment is simpler in construction, the working efficiency of constructors can be improved, the construction period is reduced, and the construction cost is reduced.
Example four:
the embodiment provides an assembled plate foundation in a post-cast strip mode, and the first embodiment of the assembled plate foundation is characterized in that a connecting sleeve 1-8 is a pressing sleeve 3-3, and as shown in fig. 8, a cylindrical installation cavity is formed in the pressing sleeve 3-3; the method comprises the steps of firstly inserting a first transverse steel bar 2-2 into an extrusion sleeve 3-3, aligning a second transverse steel bar 2-1 and a third transverse steel bar 2-3 to a middle foundation 1-2, and inserting the second transverse steel bar 2-1 and the third transverse steel bar 2-3 into the extrusion sleeve 3-3 for the center line of the first transverse steel bar 2-2.
Inserting depth of the transverse steel bars of each base plate is less than half of length of the extrusion sleeve 3-3, extruding the transverse steel bars of each base plate at the middle position of the extrusion sleeve 3-3 by using an extruder, and promoting the end parts of the transverse steel bars of each base plate to generate plastic deformation in the extrusion sleeve 3-3 to complete the connection of the transverse steel bars; and finally, pouring concrete with the strength not lower than that of each component to form a post-pouring strip 1-6, and finishing the integral connection of the plate type foundation.
The embodiment uses the extrusion sleeves 3-3 for mechanical connection, so that the construction progress can be accelerated, and the construction efficiency is improved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. An assembly type plate foundation adopting a post-cast strip mode is characterized by comprising a middle foundation and an edge foundation, wherein a first transverse steel bar penetrating through the middle foundation is arranged in the middle foundation, a second transverse steel bar is arranged in the edge foundation, and one end of the second transverse steel bar extends out of the side face of the edge foundation;
the two sides of the middle foundation are respectively spliced with the side foundations, and the extending end of the first transverse steel bar is connected with the extending end of the second transverse steel bar through a connecting sleeve; and the splicing seams of the middle part foundation and the side part foundation are filled with post-pouring belts.
2. The fabricated plate foundation adopting the post-cast strip mode as claimed in claim 1, wherein the connecting sleeve is a half grouting sleeve, and a grouting port is arranged at the top of the half grouting sleeve.
3. The fabricated panel foundation of claim 1, wherein said connecting sleeve is a threaded sleeve.
4. The fabricated panel foundation of claim 1, wherein said connecting sleeve is a squeeze sleeve.
5. A fabricated panel foundation of post-cast strip type as claimed in claim 2 or 3 or 4 wherein the post-cast strip width is greater than the connecting sleeve length.
6. The fabricated panel foundation of claim 1, wherein a main column is installed at the top of the middle foundation, and anchor bolts are embedded in the main column.
7. The assembly type plate foundation adopting the post-cast strip mode as claimed in claim 6, wherein the main column is of an integral structure or a split structure.
8. The assembly type panel foundation of claim 1, wherein the edge portion foundation is a stepped structure.
9. The assembly type plate foundation of claim 1, wherein the outer side surface of the edge foundation has an inclined section.
10. The assembly type panel foundation of claim 8 or 9, wherein the middle foundation and the side foundations are provided with a cushion at the bottom thereof.
CN202121799259.9U 2021-08-03 2021-08-03 Assembled plate type foundation adopting post-cast strip mode Active CN215926040U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114908791A (en) * 2022-05-12 2022-08-16 山东建筑大学 Assembled plate type foundation with splicing structure and construction process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114908791A (en) * 2022-05-12 2022-08-16 山东建筑大学 Assembled plate type foundation with splicing structure and construction process

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