CN215052944U - Prefabricated building structure - Google Patents

Abstract

The utility model relates to a prefabricated building structure, which comprises a pile body, a pile sleeve hoop and a reinforcing plate, wherein the pile sleeve hoop is arranged on the outer peripheral wall of the end part of the pile body; the pile hoop comprises a first hoop section which is concave towards the axis direction of the pile body and a second hoop section which is convex relative to the first hoop section, the first hoop section and the second hoop section are arranged at intervals, and a step is formed between the first hoop section and the second hoop section on the inner wall of the pile hoop; the reinforcing plate can be arranged on the step and is welded and fixed with the step. In the prefabricated building structure provided by the utility model, the arrangement of the reinforcing plate not only enables the combination between the pile hoop and the pile body to be more compact, and prolongs the service life of the prefabricated building structure; and the metal ratio of the end part of the pile body is improved, so that the mechanical strength of the end part of the prefabricated building structure is greatly improved.

Description

Prefabricated building structure

Technical Field

The utility model relates to a building technical field especially relates to a prefabricated building structure.

Background

In the field of building technology, in order to facilitate production and processing and reduce construction time, a prefabricated building structure is generally manufactured in a factory and then transported to a construction site for use. In order to protect the end of the prefabricated building structure and prevent the concrete at the end of the prefabricated building structure from falling off, a pile hoop is often arranged at the end of the prefabricated building structure. However, the connection tightness between the existing pile hoop and the pile body is poor, and the pile hoop is easily separated from the pile body when being subjected to external force, so that the protection performance of the pile hoop on the pile body is reduced; in addition, the arrangement of the pile hoop only can play a small role in protection, and the effect of reinforcing the mechanical strength of the end part of the pile body is limited.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a prefabricated building structure.

The utility model provides a prefabricated building structure, which comprises a pile body, a pile hoop and a reinforcing plate, wherein the pile hoop is arranged on the outer peripheral wall of the end part of the pile body; the pile hoop comprises a first hoop section which is concave towards the axial center direction of the pile body and a second hoop section which is convex relative to the first hoop section, the first hoop section and the second hoop section are arranged at intervals, and a step is formed between the first hoop section and the second hoop section on the inner wall of the pile hoop; the reinforcing plate can be arranged on the step and is fixedly welded with the step.

In an embodiment of the present invention, the outer peripheral wall of the reinforcing plate protrudes in the axial direction of the pile body and forms a reinforcement portion.

In an embodiment of the present invention, the reinforcement portion is integrally formed with the reinforcement plate.

In an embodiment of the present invention, the prefabricated building structure further comprises a first axial rib extending in an axial direction of the pile body; and a second through hole is formed in the reinforcing plate and is used for the first axial rib body to penetrate through.

In an embodiment of the present invention, the prefabricated building structure further includes a pre-embedded connecting member, the pre-embedded connecting member is fixedly disposed at an end of the pile body, and the pre-embedded connecting member is used for connecting two prefabricated building structures; the pile sleeve hoop comprises a side surface protection part and an end surface protection part which are integrally formed, the side surface protection part is attached to the side part of the pile body, and the end surface protection part is attached to the end part of the pile body; the end face protection part is provided with a first through hole, and the embedded connecting piece is exposed outside through the first through hole; the first axial rib body is connected to the embedded connecting piece.

In an embodiment of the present invention, the inner diameter of the second through hole is at least 5 times the diameter of the first axial rib; and/or the presence of a catalyst in the reaction mixture,

the reinforcing plate is provided with a plurality of circulation holes, the circulation holes are symmetrically distributed relative to the axis of the prefabricated building structure, and the circulation holes are used for allowing concrete to flow through; (ii) a And/or the presence of a catalyst in the reaction mixture,

the prefabricated building structure further comprises an anchoring rib, the anchoring rib is welded and fixed on the end face protection portion, extends towards the interior of the pile body and penetrates through the second through hole and is anchored into the pile body.

In an embodiment of the present invention, the reinforcing plate is internally protruded along an axial direction of the pile body and forms an engaging portion.

In an embodiment of the present invention, the engaging portion is integrally formed with the reinforcing plate; and/or the meshing part is convexly provided with meshing teeth along the radial direction of the pile body.

In an embodiment of the present invention, a third through hole is formed in the middle of the reinforcing plate; and/or the shape of the reinforcing plate is matched with the shape of the radial section of the pile body.

In an embodiment of the present invention, the pile hoop is a metal member, the reinforcing plate is made of a material different from the metal member of the pile hoop, the prefabricated building structure further includes a welding sheet, the welding sheet is located between the reinforcing plate and the pile hoop, and the reinforcing plate is fixed to the pile hoop by welding the welding sheet.

In the prefabricated building structure provided by the utility model, the arrangement of the reinforcing plate not only enables the combination between the pile hoop and the pile body to be more compact, and prolongs the service life of the prefabricated building structure; and the metal ratio of the end part of the pile body is improved, so that the mechanical strength of the end part of the prefabricated building structure is greatly improved. The pile cuff also protects the reinforcing plate from corrosion in the exposed area. In addition, the pile hoop is provided with a first inwards concave hoop section and a second outwards convex hoop section, and the first hoop section can be embedded into the pile body, so that the connection strength between the pile hoop and the pile body is improved. The reinforcing plate is welded and fixed at the step on the pile sleeve hoop, an operator can directly place the reinforcing plate on the step for welding, and the step can play a role in supporting the reinforcing plate, so that the welding of the operator is facilitated; and the welding area between the reinforcing plate and the pile sleeve hoop can be increased by welding the reinforcing plate at the step of the pile sleeve hoop, so that the welding strength is improved.

Drawings

Fig. 1 is a schematic structural view of a prefabricated building structure according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic view of section A of FIG. 2 in another embodiment;

fig. 4 is a schematic structural view of a prefabricated building structure according to another embodiment of the present invention;

fig. 5 is a schematic structural view of a prefabricated building structure according to another embodiment of the present invention;

fig. 6 is a schematic structural view of a prefabricated building structure according to another embodiment of the present invention;

fig. 7 is a schematic structural view of a pile ferrule according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a pile ferrule according to another embodiment of the present invention;

fig. 9 is a schematic structural view of a pile ferrule according to another embodiment of the present invention;

FIG. 10 is a cross-sectional view of section B-B of FIG. 9;

FIG. 11 is a schematic structural view of the reinforcing plate of FIG. 9;

FIG. 12 is a schematic structural view of a reinforcing plate according to another embodiment;

FIG. 13 is a schematic view of two prefabricated building structures interconnected in one embodiment;

FIG. 14 is a schematic structural view of the quick docking assembly of FIG. 13;

FIG. 15 is a schematic structural view of the docking station of FIG. 14;

FIG. 16 is a schematic view of the base of FIG. 14;

FIG. 17 is a top view of the clasp of FIG. 14;

fig. 18 is a cross-sectional view of the clasp of fig. 17.

100. Prefabricating a building structure; 101. a pile body; 111. a first hoop section; 112. a second hoop section; 113. a step; 10. a hollow portion; 11. a core groove; 20. a solid portion; 31. a first axial rib body; 311. heading; 32. a first radial rib; 41. a second axial rib; 42. a second radial rib body; 50. welding the sheet; 60. a pile hoop; 61. a side surface protection part; 62. an end face protection section; 621. a first through hole; 70. pre-burying a connecting piece; 71. a constriction; 80. a reinforcing plate; 801. a flow-through hole; 81. a second through hole; 82. a reinforcing portion; 83. a third through hole; 84. an engaging portion; 841. engaging teeth; 90. anchoring ribs; 200. a quick docking assembly; 210. inserting a platform; 211. a fixed part; 212. a plug-in part; 213. a first groove; 220. a base; 221. a first end face; 222. a second end face; 230. and (5) buckling.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The prefabricated building structure 100 refers to various pile bodies which are transported to a construction site for use after being prefabricated. The prefabricated building structure 100 may be produced centrally in a factory or prefabricated around a site. The axial length and the radial circumference of the prefabricated building structure 100 can be made as required, and the reinforcement ratio can be designed according to the stress during the transportation, hoisting and pressing of the pile, so that the flexibility is high. In addition, the prefabricated building structure 100 belongs to a part of soil-squeezing piles, so that the cross-sectional area of a bearing platform is effectively saved, the manufacturing cost is saved, the stress release of soil bodies after the soil bodies are damaged is facilitated, the phenomena of pile body inclination and the like caused by soil body squeezing are reduced, and the construction of other nearby pile bodies is facilitated.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a prefabricated building structure 100 according to a first embodiment of the present invention;

fig. 2 is an enlarged schematic view of a part of the structure in fig. 1.

The utility model provides a prefabricated building structure 100 is applied to the foundation building among the building technology field. In this embodiment, the prefabricated building structure 100 is used to prefabricate a vertically stressed pile. It is understood that in other embodiments, the prefabricated building structure 100 may also be used in other engineering fields, such as fabricated buildings, etc., and may also be used for horizontal load-bearing piles or composite load-bearing piles, etc.

The prefabricated building structure 100 comprises a pile body 101 and a pile cover hoop 60, wherein the pile cover hoop 60 is arranged on the outer peripheral wall of the end part of the pile body 101, so that the concrete on the end part of the prefabricated building structure 100 can be prevented from falling off in the process that the prefabricated building structure 100 is buried underground or in the service process, and the internal steel bars are exposed to the outside and are corroded, so that the strength of the prefabricated building structure 100 is reduced. The pile hoop 60 can wrap the end part of the pile body 101, so that the surface of the pile body 101 is smoother and tidier, and concrete at the end part of the pile body 101 can be protected from falling off when the pile body 101 is used; in addition, because the end of pile body 101 has been lived in the parcel of stake cuff 60, can make when filling the concrete vibrate more fully, the breakage rate of pile body 101 is lower, and the prefabricated building structure 100 who makes is high, of high quality.

Specifically, the pile ferrule 60 is carbon structural steel, preferably Q235 steel; the thickness of the pile hoops 60 is 0.5mm to 12mm, and the height of the pile hoops 60 in the axial direction of the prefabricated building structure 100 is 60mm to 500 mm. Preferably, the pile cuff 60 has a thickness of 1mm to 8mm, and the pile cuff 60 has a height of 80mm to 200mm in the axial direction of the prefabricated building structure 100.

In the present invention, the prefabricated building structure 100 may be a partially hollow pile (as shown in fig. 1 and 4), a solid pile (as shown in fig. 5), or a hollow pile (as shown in fig. 6); the pile can be a square pile, a tubular pile, a polygonal pile or other special-shaped piles. The outer peripheral wall of the pile body 101 may be cylindrical, polygonal cylindrical or irregular, and the interior of the pile body 101 may be a cylindrical hole, a polygonal hole or an irregular hole, which is not limited herein.

In order to increase the connection tightness between the pile hoop 60 and the pile body 101, at least one first hoop section 111 which is concave towards the axial direction of the pile body 101 and at least one second hoop section 112 which is convex relative to the first hoop section 111 are arranged on the pile hoop 60, the first hoop section 111 and the second hoop section 112 are arranged at intervals, and a step 113 is formed between the first hoop section 111 and the second hoop section 112 on the inner wall of the pile hoop 60. Due to the arrangement, the pile hoop 60 can be prevented from shifting relative to the pile body 101 during production, and the fixing performance is good; and the excessive concrete residual grout can be removed from the mould along with the pile sleeve 60 during production, so that the mould is convenient to clean and maintain. When the prefabricated building structure 100 is buried in the soil body, the inward-concave first hoop section 111 can increase the wrapping force of the rebounded soil body, and is beneficial to transmitting the bearing force of the prefabricated building structure 100 to the soil body, so that the bearing force of a single pile is improved.

Preferably, the second hoop section 112 is flush with the outer peripheral wall of the pile body 101.

However, the connection tightness between the existing pile hoop and the pile body is poor, and the pile hoop is easily separated from the pile body when being subjected to external force, so that the protection performance of the pile hoop on the pile body is reduced; in addition, the arrangement of the pile hoop only can play a small role in protection, and the effect of reinforcing the mechanical strength of the end part of the pile body is limited.

Based on this, please refer to fig. 7, the prefabricated building structure of the present invention further includes a reinforcing plate 80, and the reinforcing plate 80 can be disposed on the step 113 and welded to the step 113.

Due to the arrangement, the pile hoop 60 and the pile body 101 are combined more tightly, and the service life of the prefabricated building structure 100 is prolonged; moreover, the arrangement of the reinforcing plate 80 improves the ratio of metal parts at the end of the pile body 101, thereby greatly improving the mechanical strength of the end of the prefabricated building structure 100. In addition, the reinforcing plate 80 is welded and fixed at the step on the pile hoop 60, an operator can directly place the reinforcing plate 80 on the step 113 for welding, and the step 113 can play a role in supporting the reinforcing plate 80, so that the welding of the operator is facilitated; moreover, the reinforcing plate 80 is welded at the step of the pile sleeve hoop 60, so that the welding area between the reinforcing plate 80 and the pile sleeve hoop 60 can be increased, and the welding strength is improved.

The step 113 is not necessarily a plane, and may be a curved surface or a special-shaped surface as long as the welded area can be increased and the reinforcing plate 80 can be prevented from coming on the step 113.

It is understood that when the pile body 101 is a hollow pile (e.g., a tubular pile, a hollow square pile), the reinforcing plate 80 may be provided. If it is desired to avoid the reinforcing plate 80 from being exposed, the reinforcing plate 80 is simply provided with a third through hole 83, which avoids the hollow center of the pile body 101, as shown in fig. 12.

Preferably, the depth of the step 113 in the radial direction of the pile body 101 is not less than 2mm, which facilitates the placement of the reinforcing plate 80 and the welding fixation with the reinforcing plate 80.

In one embodiment, the shape of the reinforcing plate 80 matches the shape of the radial cross-section of the pile body 101. By such an arrangement, positioning and welding of the reinforcing plate 80 are facilitated, and the connection stability of the reinforcing plate 80 and the pile body 101 is higher. It is understood that there may be more than one reinforcing plate 80, each of which is located in the same radial plane of the pile 101, thereby further increasing the mechanical strength of the end of the pile 101.

In another embodiment, the reinforcing plates 80 are in multiple sets (not shown), each set includes multiple reinforcing plates 80, and each set of reinforcing plates 80 are located in the same radial plane of the pile body 101. So set up, set up multiunit reinforcing plate 80 in stake body 101, can improve the arrangement of reinforcement rate of stake body 101 tip by a wide margin to be provided with step 113 between first hoop section 111 and the second hoop section 112, be convenient for fix a position between the multiunit reinforcing plate 80.

In one embodiment, referring again to fig. 2, the pile ferrules 60 are metal members, the reinforcing plate 80 is a metal member different from the pile ferrules 60, the prefabricated building structure 100 further includes a welding sheet 50, the welding sheet 50 is located between the reinforcing plate 80 and the pile ferrules 60, and the reinforcing plate 80 is welded and fixed to the pile ferrules 60 by the welding sheet 50. The welding sheet 50 assists the welding fixation between the pile hoop 60 and the reinforcing plate 80, so that not only can the welding strength be improved, but also the material of the pile hoop 60 or the reinforcing plate 80 can be diversified, and the applicability is wider. The welding sheet 50 may be integrally formed with one of the reinforcing plate 80 or the pile sleeve hoop 60 in advance, and then welded and fixed with the other at the construction site; or may be welded and fixed to the reinforcing plate 80 and the pile ferrules 60, respectively, during field construction.

It is understood that the weld tab 50 may be a single material or may be formed from a plurality of different materials. When the weld tab 50 is a single material, the weld tab 50 should be capable of being welded to both the pile cuff 60 and the reinforcement plate 80; when the welding tab 50 is made of multiple materials, it may have a transitional multi-layer structure, one side of which can be welded to the pile ferrule 60 and the other side of which can be welded to the reinforcement plate 80.

In the present invention, the pile ferrule 60 is made of carbon structural steel, and the reinforcing plate 80 is made of carbon structural steel or low alloy steel.

Referring to fig. 9 and 10, in one embodiment, the pile ferrule 60 includes a side surface protection part 61 and an end surface protection part 62 which are integrally formed, the side surface protection part 61 is attached to the side portion of the pile body 101, and the end surface protection part 62 is attached to the end portion of the pile body 101; the end surface protection part 62 is provided with a first through hole 621, and the embedded connecting member 70 is exposed outside through the first through hole 621. The pile hoop 60 is adopted to protect the side surface and the end surface of the pile body 101, and the side surface protection part 61 and the end surface protection part 62 of the pile hoop 60 are integrally formed, so that the manufacturing method is simple, and the raw material cost is low; the thickness of the pile hoop 60 is small, and the pile hoop 60 is arranged between the two pile bodies 101, so that the strength of the pile bodies 101 cannot be influenced, and a large gap is not easy to generate; the pre-buried connecting member 70 is exposed through the first through hole 621, so as to facilitate the quick connection between the two pile bodies 101.

It will be appreciated that the pile ferrule 60 may also be provided with only the side guards 61, as shown in fig. 6; the end surface protection part 62 may cover the entire end surface of the pile body 101, or may cover only a part of the end surface, and is not limited herein.

In order to facilitate the machining and molding of the pile ferrule 60, the side surface protection part 61 and the end surface protection part 62 are both made of metal plates, and the thicknesses of the side surface protection part 61 and the end surface protection part 62 are consistent. With this arrangement, the side surface protector 61 and the end surface protector 62 can be kept substantially the same in strength while reducing the manufacturing cost of the pile ferrule 60.

Referring to fig. 1 and 4 again, the pile body 101 includes a hollow portion 10 and a solid portion 20 connected to each other, and a core slot 11 is formed in the hollow portion 10; a first cage body (not numbered) is arranged in the pile body 101, the first cage body comprises a first axial rib body 31 and a first radial rib body 32, a plurality of first axial rib bodies 31 form a frame of the first cage body, and the frame of the first cage body is surrounded with a core slot 11; the first radial rib 32 is spirally wound around the frame of the first cage, and the first radial rib 32 is fixedly connected with the first axial rib 31. It is understood that in other embodiments, only the first axial ribs 31 may be provided, and the first radial ribs 32 may not be provided.

In one embodiment, referring to fig. 3, the prefabricated building structure 100 further includes an anchoring rib 90, the anchoring rib 90 is welded and fixed to the end face protection part 62, and the anchoring rib 90 extends towards the inside of the pile body 101 and is anchored into the pile body 101. The anchor ribs 90 provided on the end face protector 62 can increase the bonding tightness between the pile ferrule 60 and the end face of the pile body 101, so as to avoid bulging of the pile ferrule 60 due to the thinness of the end face protector 62.

It is understood that when the anchoring bar 90 has a long length, the anchoring bar 90 may pass through the reinforcing plate 80 through the second through hole 81, the flow hole 801 or the third through hole 83. In addition, in other embodiments, in order to prevent the side surface protecting portion 61 from bulging, the anchoring rib 90 may also be welded on the side surface protecting portion 61, which is not described herein.

It is understood that the outer edge of the cross section of the first cage is circular or polygonal, and the polygon is triangle, square/rectangle, pentagon, hexagon, etc., which are not listed here.

By the arrangement, the first cages in different shapes can be designed according to the actual application and the corresponding stress condition of the prefabricated building structure 100, so that different bearing effects can be achieved.

In one embodiment of the invention, the first cage is made of prestressed reinforcement.

According to the arrangement, before the prefabricated building structure 100 is used, prestress is applied to the steel bars in advance through a pre-tensioning method or a post-tensioning method to form prestressed steel bars, when the prefabricated building structure 100 bears tensile force generated by external load, the existing prestress in concrete is firstly counteracted, then the prestressed steel bars are stressed, and finally, the concrete is tensioned and then cracks appear along with the increase of the load, so that the appearance and the development of the cracks of the prefabricated building structure 100 are delayed, and the loads such as soil body extrusion, underground water scouring, earthquake load and self-gravity load which can be borne by the prefabricated building structure 100 are improved. The deformed steel bar is a steel bar with a rib on the surface, and can better bear the action of external force due to the function of the rib and the larger bonding capacity of concrete. The first cage body is composed of prestressed reinforcements, so that the solid portion 20 and the hollow portion 10 both have high vertical stress capacity, and an integral stress foundation is formed.

Preferably, the first radial rib 32 and the first axial rib 31 are fixed by spot welding.

With the arrangement, the first cage body has higher bearing strength and simple processing, and only needs to wind the first radial rib bodies 32 on the frame formed by the first axial rib bodies 31 while carrying out axial transportation on the plurality of first axial rib bodies 31, so that the working hours are saved; and can increase the number of turns and the encryption length that first radial muscle body 32 spiral was around at the great position of atress degree as required, for example increase the number of turns and the encryption length that first radial muscle body 32 spiral was around at the both ends of first cage body, prevent that prefabricated building structure 100 from suffering structural damage when burying underground the too big atress.

Further, as shown in fig. 4, a second cage (not numbered) is further disposed in the pile 101, the second cage is located in the solid portion 20, the second cage includes a second axial rib 41 and a second radial rib 42, and the second axial ribs 41 form a frame of the second cage; the second radial ribs 42 spirally surround the frame of the second cage, and the second radial ribs 42 are fixedly connected with the second axial ribs 41. Preferably, the second radial ribs 42 and the second axial ribs 41 are fixed by spot welding.

It is understood that, in other embodiments, the first radial rib 32 and the first axial rib 31, and the second axial rib 41 and the second radial rib 42 may be fixed by snapping, binding, or the like, which is not listed here.

In one embodiment, the first axial rib 31 and/or the second axial rib 41 are made of at least one of a steel bar for prestressed concrete (PC steel bar), a stainless steel bar, a hot rolled steel bar, a medium strength prestressed wire, a stress-relief wire, a steel strand, a prestressed twisted steel, and/or,

the first radial rib 32 and/or the second radial rib 42 are made of at least one of a steel bar for prestressed concrete (PC steel bar), a stainless steel bar, a hot-rolled steel bar, a medium-strength prestressed wire, a stress-relief wire, a steel strand, a prestressed twisted steel, a low-carbon steel hot-rolled disc strip, and a cold-drawn low-carbon wire for concrete products.

Preferably, the hollow portion 10 and the solid portion 20 are made of a concrete material, and the outer peripheral walls of the hollow portion 10 and the solid portion 20 are substantially the same shape.

Referring to fig. 7 to 12 again, preferably, the reinforcing plate 80 is provided with a second through hole 81, and the second through hole 81 is provided for the first axial rib 31 and/or the second axial rib 41 to penetrate.

Preferably, the inner diameter of the second through hole 81 is at least 5 times larger than the first axial rib 31 or the second axial rib 41. Further, the inner diameter of the second through hole 81 is 10 times to 20 times that of the first axial rib 31 or the second axial rib 41.

So set up, not only be convenient for first axial muscle body 31 and/or second axial muscle body 41 wear to establish second through-hole 81, second through-hole 81 can also supply the concrete to flow through for the concrete of the both sides of reinforcing plate 80 can evenly be laid, and the structure of piling is more stable, and mechanical strength is higher.

It is understood that in other embodiments, as shown in fig. 12, when concrete does not need to flow through second through hole 81, the inner diameter of second through hole 81 may be slightly larger than the diameter of first axial rib 31 or second axial rib 41, for example, only 1.5 to 3 times of first axial rib 31 or second axial rib 41, only that first axial rib 31 or second axial rib 41 can smoothly pass through second through hole 81.

Referring to fig. 11 again, in one embodiment, the reinforcing plate 80 is provided with a plurality of flow holes 801, the flow holes 801 are symmetrically distributed with respect to the axis of the prefabricated building structure 100, and the flow holes 801 are used for allowing concrete to flow through, so that the concrete on two sides of the reinforcing plate 80 can be uniformly laid, the pile-forming structure is more stable, and the mechanical strength is higher.

Referring again to fig. 10 to 12, preferably, the outer peripheral wall of the reinforcing plate 80 is convex in the axial direction of the pile body 101 and forms a reinforcing portion 82. With this arrangement, the provision of the reinforcing portion 82 can further increase the contact area between the reinforcing plate 80 and the pile ferrules 60, thereby enabling an increase in the welding area.

It is understood that the reinforcement 82 may be continuous or dotted. For example, when the pile body 101 is a square pile, the reinforcement 82 may be square; or L-shaped, and is arranged at the edge of the square pile. When the pile body 101 is a tubular pile, the reinforcing part 82 may be arc-shaped or circular.

Preferably, the reinforcing portion 82 is integrally formed with the reinforcing plate 80, which facilitates the process and reduces the number of assembly steps.

Of course, the reinforcing portion 82 may be manufactured in a factory and shipped, or may be manufactured on a construction site and welded to the pile ferrule 60, and is not limited herein.

In one embodiment, as shown in fig. 12, the middle portion of the reinforcing plate 80 is opened with a third through hole 83. The third through hole 83 not only enables the reinforcing plate 80 to be adapted to a hollow pile or a local hollow pile, but also enables concrete to flow through the third through hole 83 when the prefabricated building structure 100 is produced, so that the concrete on two sides of the reinforcing plate 80 can be uniformly laid, the pile-forming structure is more stable, and the mechanical strength is higher.

In one embodiment, as shown in fig. 10, the inside of the reinforcing plate 80 protrudes in the axial direction of the pile body 101 and forms a snap 84, and the snap 84 can increase the bonding force between the reinforcing plate 80 and the pile body 101, and avoid the defects of hollowing and the like at the position of the pile body 101 close to the reinforcing plate 80.

Preferably, the engagement portion 84 is convexly provided with engagement teeth 841 along the radial direction of the pile body 101, and the engagement teeth 841 are arranged to make the bonding force between the reinforcing plate 80 and the pile body 101 stronger.

Preferably, the engagement portion 84 is integrally formed with the reinforcement plate 80.

In one embodiment of the present invention, the pile cover 60 is disposed at an end of the pile body 101 relatively close to the solid portion 20, and/or the pile cover 60 is disposed at an end of the pile body 101 relatively close to the hollow portion 10. So set up, the combination between pile body 101 and the soil body is effectual, and the superstructure of being convenient for transmits bearing capacity downwards, improves the bearing capacity and the wholeness of single pile.

Referring to fig. 1 to 6 again, in an embodiment of the present invention, the first axial rib 31 and/or the second axial rib 41 are provided with pre-embedded connectors 70, and the pre-embedded connectors 70 are located at the end of the pile body 101.

So configured, at the time of building construction, the prefabricated building structure 100 is generally required to be spliced with another prefabricated building structure to extend the length of the prefabricated building structure 100, or a bearing platform is poured after connecting reinforcing bars at the top of the prefabricated building structure 100 to bear the superstructure. The embedded connecting pieces 70 are arranged on the first axial rib body 31 and the second axial rib body 41, so that the combination rate between the two prefabricated building structures 100 can be increased; or the reinforcement ratio of the bearing platform is improved, the connection mode between the prefabricated building structure 100 and the bearing platform is simplified, the force transmission link in the stress process is reduced, the integral vertical stress capacity of the prefabricated building structure 100 is improved, and the mechanical property of the prefabricated building structure 100 and the bearing platform is guaranteed.

In one embodiment, the embedded connector 70 has an internal thread, the second axial rib 41 has an external thread, and the second axial rib 41 is connected with the embedded connector 70 through a thread.

In one embodiment, the pre-embedded connector 70 has a contraction opening 71 for connecting with the second axial rib 41 or the first axial rib 31; the end of the second axial rib 41 or the first axial rib 31 connected with the embedded connector 70 is provided with an upset 311, and the contraction opening 71 is used for limiting the upset 311.

It should be noted that the pre-embedded connectors 70 in the two prefabricated building structures 100 may be of the same type, or of different types, and may be selected according to the working conditions.

Referring to fig. 13-18, fig. 13 is a schematic view of two prefabricated building structures connected to each other according to an embodiment;

FIG. 14 is a schematic structural view of the quick docking assembly of FIG. 13; FIG. 15 is a schematic structural view of the docking station of FIG. 14; FIG. 16 is a schematic view of the base of FIG. 14; FIG. 17 is a top view of the clasp of FIG. 14; fig. 18 is a cross-sectional view of the clasp of fig. 17.

The two prefabricated building structures 100 are connected by the quick docking assembly 200, the docking speed is high, and the mechanical strength is high after docking.

The quick docking assembly 200 comprises a socket 210, a base 220 and a buckle 230, wherein the socket 210 comprises a fixing portion 211 and a plugging portion 212 which are oppositely arranged, and the plugging portion 212 is provided with a first groove 213; the base 220 includes a first end surface 221 and a second end surface 222 disposed opposite to each other; the ring buckle 230 is C-shaped (i.e. has an opening) and can be elastically contracted, and the ring buckle 230 is sleeved on the inserting platform 210 and is accommodated in the first groove 213; the ring 230 can be inserted into the base 220 along the insertion direction (the α direction shown in fig. 15) together with the plug 212 of the socket 210, and the ring 230 can abut against the second end face 222 of the base 220 by elastic expansion and limit the movement of the socket 210 along the opposite direction of the insertion direction.

After the insertion portion 212 of the insertion stage 210 is inserted into the base 220, the ring buckle 230 can be ejected out of the first groove 213 through the elastic expansion portion and abut against the second end face 222 of the base 220, an abutting surface between the ring buckle 230 and the second end face 222 is approximately annular, an abutting area is large, joint strength between two embedded connectors 70 can be ensured, and particularly, vertical stress performance is greatly improved. In addition, the rapid docking assembly 200 provided by the embodiment has the advantages of simple processing technology, low cost and wide application range.

It is understood that the insertion direction α can be, but is not limited to, the above-mentioned directions, and even partial angular offsets should be included in the scope of the present invention.

The above-mentioned quick docking assembly 200 is only an example, and two prefabricated building structures may be connected by other types of quick docking assemblies 200, which are not listed here.

In one embodiment, two prefabricated building structures 100 are butt-jointed and then welded together by a pile ferrule 60, as shown in fig. 14. The pile hoops 60 of the two prefabricated building structures 100 are directly welded and fixed by utilizing the metal performance of the pile hoops 60, so that the connection strength of the two prefabricated building structures 100 is increased, the two prefabricated building structures 100 are connected by the quick butt joint assembly 200 and connected by the pile hoops 60 in a welding manner, and the stability is better.

In another embodiment, two prefabricated building structures 100 are welded to pile ferrules 60 by steel plates (not shown) after being butted. So set up, can reduce the welding degree of difficulty, increase the joint strength between two prefabricated building structures 100 after the welding.

Specifically, for example, when pile body 101 is a square pile, the steel plate is preferably an angle steel; when the pile body 101 is a tubular pile, the steel plate is semicircular or circular arc-shaped.

In the prefabricated building structure 100 provided by the utility model, the arrangement of the reinforcing plate 80 not only makes the combination between the pile hoop 60 and the pile body 101 more compact, but also prolongs the service life of the prefabricated building structure 100; but also the metal content of the end of the pile 101 is increased, thereby greatly increasing the mechanical strength of the end of the prefabricated building structure 100. The pile cuff 60 also protects the reinforcing plate 80 from corrosion in the exposed area of the reinforcing plate 80. In addition, the pile sleeve hoop 60 is provided with a concave first hoop section 111 and a convex second hoop section 112, and the first hoop section 111 can be embedded into the pile body 101, so that the connection strength between the pile sleeve hoop 60 and the pile body 101 is improved. The reinforcing plate 80 is welded and fixed at the step 113 on the pile hoop 60, an operator can directly place the reinforcing plate 80 on the step 113 for welding, and the step 113 can play a role in supporting the reinforcing plate 80, so that the welding of the operator is facilitated; moreover, the welding of the reinforcing plate 80 to the step 113 of the pile ferrule 60 can increase the welding area between the reinforcing plate 80 and the pile ferrule 60, thereby improving the welding strength.

The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims (10)

1. A prefabricated building structure is characterized by comprising a pile body, a pile hoop and a reinforcing plate, wherein the pile hoop is arranged on the outer peripheral wall of the end part of the pile body; the pile hoop comprises a first hoop section which is concave towards the axial center direction of the pile body and a second hoop section which is convex relative to the first hoop section, the first hoop section and the second hoop section are arranged at intervals, and a step is formed between the first hoop section and the second hoop section on the inner wall of the pile hoop;

the reinforcing plate can be arranged on the step and is fixedly welded with the step.

2. The prefabricated building structure of claim 1, wherein the outer peripheral wall of the reinforcing plate is convex in the axial direction of the pile body and forms a reinforcement portion.

3. The prefabricated building structure of claim 2, wherein the reinforcement portion is integrally formed with the reinforcement plate.

4. The prefabricated building structure of claim 1 further comprising a first axial rib extending in an axial direction of the pile;

and a second through hole is formed in the reinforcing plate and is used for the first axial rib body to penetrate through.

5. The prefabricated building structure of claim 4, further comprising a pre-buried connecting member fixedly disposed at an end of the pile body, the pre-buried connecting member being used for connection between two prefabricated building structures; the pile sleeve hoop comprises a side surface protection part and an end surface protection part which are integrally formed, the side surface protection part is attached to the side part of the pile body, and the end surface protection part is attached to the end part of the pile body; the end face protection part is provided with a first through hole, and the embedded connecting piece is exposed outside through the first through hole; the first axial rib body is connected to the embedded connecting piece.

6. The prefabricated building structure of claim 5 wherein said second through hole has an inner diameter at least 5 times greater than a diameter of said first axial tendon; and/or the presence of a catalyst in the reaction mixture,

the reinforcing plate is provided with a plurality of circulation holes, the circulation holes are symmetrically distributed relative to the axis of the prefabricated building structure, and the circulation holes are used for allowing concrete to flow through; and/or the presence of a catalyst in the reaction mixture,

the prefabricated building structure further comprises an anchoring rib, the anchoring rib is welded and fixed on the end face protection portion, extends towards the interior of the pile body and penetrates through the second through hole and is anchored into the pile body.

7. The prefabricated building structure of claim 1, wherein the reinforcement plate inner portion is protruded in an axial direction of the pile body and forms a bite.

8. The prefabricated building structure of claim 7 wherein said bite is integrally formed with said reinforcing plate; and/or the presence of a catalyst in the reaction mixture,

the meshing part is convexly provided with meshing teeth along the radial direction of the pile body.

9. The prefabricated building structure of claim 1, wherein a third through hole is formed in a middle portion of the reinforcing plate; and/or the presence of a catalyst in the reaction mixture,

the shape of the reinforcing plate is matched with the shape of the radial section of the pile body.

10. The prefabricated building structure of claim 1, wherein the pile cuff is a metal member, the reinforcing plate is a metal member having a material different from that of the pile cuff, the prefabricated building structure further comprises a welding piece, the welding piece is located between the reinforcing plate and the pile cuff, and the reinforcing plate is welded and fixed to the pile cuff by the welding piece.

Images