CN215926046U - Combined assembled plate type foundation - Google Patents

Abstract

The utility model discloses a combined assembled plate foundation, which adopts the technical scheme that: the assembled type floor comprises a plurality of floor units, wherein the floor units are spliced along the horizontal direction to form an assembled type floor, and the upper part of the assembled type floor is provided with an upright post; the connecting beam is detachably mounted on the upper side of the splicing seam of the adjacent bottom plate units, and the connecting beam is distributed along the circumferential direction of the upright column and detachably connected with the upright column. The utility model can bear both downward pressure and upward pulling force, thereby improving the stability of the foundation and the construction efficiency.

Description

Combined assembled plate type foundation

Technical Field

The utility model relates to the field of power transmission tower foundations, in particular to a combined assembly type plate foundation.

Background

At present, the transmission tower foundation generally adopts a cast-in-place foundation, and concrete needs to be stirred on site or concrete needs to be adopted and then cast on site. The construction period of the cast-in-place plate type foundation is long, and a large amount of steel bar binding and maintenance time is needed. The assembly type building is characterized in that the components are produced in a factory and assembled on site; the way of replacing cast-in-place foundation with fabricated plate type foundation gradually appears in the field of power transmission tower foundation.

However, the inventor finds that the conventional assembled plate type foundation can only bear the pressing load and cannot bear the pulling-up force because the components are not connected, and has the problem of unstable connection.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a combined assembly type plate foundation which can bear downward pressure and upward pulling force, improve the stability of the foundation and improve the construction efficiency.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the embodiment of the utility model provides a combined assembly type plate foundation which comprises a plurality of bottom plate units, wherein the bottom plate units are spliced along the horizontal direction to form an assembly type bottom plate, and an upright post is arranged at the upper part of the assembly type bottom plate; the connecting beam is detachably mounted on the upper side of the splicing seam of the adjacent bottom plate units, and the connecting beam is distributed along the circumferential direction of the upright column and detachably connected with the upright column.

As a further implementation, the connection beam is of a stepped structure.

As a further implementation mode, a plurality of gaskets are arranged on the upper surface of the connecting beam at intervals and are fixed with the bottom plate unit through installing connecting bolts on the gaskets.

As a further implementation mode, the connecting beam is fixed with the side face of the upright post through the connecting plate, and the connecting plates arranged on the two symmetrical side faces of the upright post are connected through split bolts.

As a further implementation, the connecting plate is provided with holes for the passage of the split bolts.

As a further implementation mode, the upright columns are arranged into at least two sections, longitudinal steel bars are reserved in the upright columns, and the longitudinal steel bars between the upright columns are connected through connecting sleeves.

As a further implementation mode, a reinforcement cage is arranged inside the connecting beam and fixed with the connecting plate.

As a further implementation, the upright column is a straight column or an inclined column.

As a further implementation manner, when the upright column is a straight column, the top of the upright column is provided with foundation bolts; when the upright post is an inclined post, angle steel is arranged at the top of the upright post.

As a further implementation, the upright post is located at a central position of the fabricated base plate.

The utility model has the following beneficial effects:

(1) according to the utility model, through the combination form of the bottom plate unit and the connecting beam, the bottom plate unit and the connecting beam are longitudinally connected through the connecting bolt, and the connecting beam and the upright post are transversely connected through the split bolt, so that the foundation can bear both downward pressure and upward pulling force, and the structural stability is improved.

(2) The stepped connecting beams are arranged at the splicing seams of the bottom plate units, so that the thickness of the bottom plate units can be effectively reduced, the material consumption is reduced, and the economy is improved.

(3) The bottom plate unit and the upright post are connected through the connecting sleeve, so that the integrity of the foundation is improved; the difficulty of subassembly transportation has been reduced to the split scheme of bottom plate unit and stand, and the stand can divide into the multistage, makes the basis be applicable to the condition of different buried depths.

(4) The connecting beam and the connecting plate are fixed into a whole, so that the transportation is facilitated; the foundation components are completely prefabricated and assembled, and the site construction efficiency is greatly improved.

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 perspective view of the present invention according to one or more embodiments;

FIG. 2 is a front view of the present invention in accordance with one or more embodiments;

FIG. 3 is a top view of the present disclosure according to one or more embodiments;

FIG. 4 is a cross-sectional view of a coupling beam according to one or more embodiments of the present invention;

the steel bar cage comprises a base plate unit 1, a base plate unit 2, a stand column 3, a connecting beam 4, a connecting plate 5, split bolts 6, connecting bolts 7, a gasket 8, a connecting sleeve 9, foundation bolts 10 and a steel bar cage.

Detailed Description

The first embodiment is as follows:

the embodiment provides a modular assembled plate foundation, as shown in fig. 1 and 2, including bottom plate unit 1, stand 2, tie-beam 3, a plurality of bottom plate unit 1 splice along the horizontal direction and form the assembled bottom plate, and stand 2 sets up in assembled bottom plate upside central point and puts, and tie-beam 3 is installed along 2 circumference of stand.

The cross section of the upright post 2 can be set to be rectangular or circular, in the embodiment, the upright post 2 with the rectangular cross section is taken as an example; four bottom plate units 1 are arranged at the bottom of the upright post 2.

The upright post 2 of the embodiment adopts a multi-section structure, namely, the upright posts are spliced through a plurality of sections of upright posts; the buried depth of the foundation can be adjusted, and the applicability of the foundation is improved. Longitudinal steel bars are embedded in the upright posts 2 and connected through connecting sleeves 8. Longitudinal steel bars are pre-embedded in the bottom plate unit 1 and connected with the longitudinal steel bars of the stand columns 2 through connecting sleeves 8.

Preferably, the connecting sleeve 8 is a grouting sleeve, and concrete grout is poured through the grouting sleeve to realize stable connection of the longitudinal steel bars. The grouting material of the grouting sleeve is doped with a proper amount of expanding agent, and after the expanding agent is doped, the strength of concrete meets the design requirement.

Further, the connecting beams 3 are circumferentially arranged along the upright posts 2, each connecting beam 3 corresponds to one side face of each upright post 2, and the connecting beams 3 are arranged on the splicing seams of the adjacent bottom plate units 1. In the present embodiment, the connecting beam 3 is provided in a stepped structure, which enables an effective reduction in the amount of material.

As shown in fig. 4, a reinforcement cage 10 is arranged inside the connecting beam 3, when the connecting beam 3 is manufactured, after the reinforcement cage 10 is bound, longitudinal reinforcements (reinforcements along the length direction of the connecting beam 3) in the reinforcement cage 10 are welded and fixed with the connecting plate 4, and then concrete is poured; the connecting beam 3 and the connecting plate 4 are fixed into a whole for transportation, and are convenient to assemble with the upright post 2.

Further, the upper surface of the connecting beam 3 is provided with a plurality of gaskets 7 at intervals, the length direction of the gaskets 7 is consistent with the width direction of the connecting beam 3, and the gaskets 7 are fixedly connected with the bottom plate unit 1 through connecting bolts 6, so that the assembly and disassembly are convenient. The gasket 7 is arranged to avoid local crushing of the concrete due to stress concentration of the connecting bolt 6.

In the present embodiment, the connecting plates 4 are rectangular steel plates, and as shown in fig. 3, the connecting plates 4 provided on the opposite side surfaces of the column 2 are connected by tie bolts 5. The connecting plate 4 is provided with a plurality of holes for the split bolts 5 to pass through, and after the nuts at two ends of the split bolts 5 are screwed down, the connecting beam 3 and the upright post 2 are reliably connected.

Further, the upright post 2 is a straight post or an inclined post; when the upright post 2 is a straight post, the top of the upright post is provided with a foundation bolt 9; when the upright post 2 is an oblique post, angle steel is arranged at the top of the upright post.

When the foundation load is smaller, the connecting beam 3 is not needed, the connecting plate 4 and the split bolt 5 are not needed, and the bottom plate unit 1 is directly and reliably connected through the connecting bolt 6 and the gasket 7. When the connecting beam 3 is adopted, the length and the width of the connecting beam can be determined by calculation according to the magnitude of the basic acting force.

The construction process will be described by taking the assembly of four bottom plate units 1 as an example:

when in site construction, firstly, excavation of a foundation pit is carried out.

Then 4 bottom plate units 1 are hoisted in place, then the upright posts 2 are hoisted, and the bottom plate units 1 and the upright posts 2 are connected through connecting sleeves 8. Then the connecting beam 3 is hoisted, the split bolt 5 and the connecting bolt 6 are respectively penetrated, the gasket 7 is placed on the connecting beam 3, and the connecting beam is fastened through the connecting bolt 6.

And finally, backfilling the foundation pit. When the foundation pit is backfilled, water and sundries cannot exist in the foundation pit, and tree roots and weeds in the backfilled soil must be removed. The backfill soil is tamped layer by layer, and the thickness of each layer is 200 mm-300 mm.

The arrangement of the connecting beam 3 can effectively reduce the thickness of the bottom plate unit 1, and the economical efficiency is high; and is connected with the bottom plate unit 1 together, not only can bear the downward pressure, but also can bear the upward pulling force; the connection strength of the components is improved, and the connection reliability is improved. The connection mode of the grouting sleeve of the bottom plate unit 1 and the upright post 2 can improve the integrity of the foundation.

The job site of this embodiment only has the wet operation of grout, need not cast in situ, avoids the reinforcement, need not long-time concrete maintenance, can improve the efficiency of construction.

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. A combined assembly type plate foundation is characterized by comprising a plurality of bottom plate units, wherein the bottom plate units are spliced along the horizontal direction to form an assembly type bottom plate, and an upright post is arranged at the upper part of the assembly type bottom plate; the connecting beam is detachably mounted on the upper side of the splicing seam of the adjacent bottom plate units, and the connecting beam is distributed along the circumferential direction of the upright column and detachably connected with the upright column.

2. A modular fabricated panel foundation according to claim 1, wherein said connecting beams are of stepped configuration.

3. The assembled plate foundation of claim 1 or 2, wherein the upper surface of the connecting beam is provided with a plurality of spacers at intervals, and the connecting beam is fixed with the bottom plate unit through the spacers by installing connecting bolts.

4. The assembled plate foundation of claim 1 or 2, wherein the connecting beams are fixed to the side surfaces of the vertical columns through connecting plates, and the connecting plates arranged on the symmetrical two side surfaces of the vertical columns are connected through split bolts.

5. A modular fabricated panel foundation according to claim 4, wherein the connection plate is provided with holes for passage of cross bolts.

6. The assembled plate type foundation of claim 1, wherein the columns are arranged into at least two sections, longitudinal steel bars are reserved in the columns, and the longitudinal steel bars between the columns are connected through connecting sleeves.

7. The assembled plate foundation of claim 1, wherein a reinforcement cage is disposed inside the connecting beam and fixed to the connecting plate.

8. The modular fabricated panel foundation of claim 1, wherein said columns are right or angled columns.

9. The assembled plate foundation of claim 8, wherein when the columns are straight columns, the top of each column is provided with an anchor bolt; when the upright post is an inclined post, angle steel is arranged at the top of the upright post.

10. The modular fabricated panel foundation of claim 1, wherein said stud is centrally located on said fabricated floor.

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