1. A prefabricated building structure is characterized by comprising a pile body, a pile hoop and a first anchoring rib, 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;

and two ends of the first anchoring rib are respectively welded and fixed at the step opposite to the pile sleeve hoop.

2. The prefabricated building structure of claim 1, wherein the first anchoring ribs are in a plurality of groups, each group including a plurality of the first anchoring ribs, the first anchoring ribs of each group being located in the same radial plane of the pile body.

3. A prefabricated building structure according to claim 2, wherein a plurality of said first anchoring bars of the same group are arranged crosswise.

4. The prefabricated building structure of claim 3, wherein the first anchoring rib includes a relief portion for relieving at an intersection of the first anchoring rib; and/or the presence of a catalyst in the reaction mixture,

the two first anchoring ribs which are mutually crossed are fixedly connected; and/or the presence of a catalyst in the reaction mixture,

the second hoop section is flush with the peripheral wall of the pile body.

5. The prefabricated building structure of claim 4, wherein the first anchoring bar is provided with at least two yielding portions, wherein the two yielding portions yield in different directions.

6. The prefabricated building structure of claim 1, wherein the end of the first anchoring rib further comprises a bending portion, the bending portion is bent toward the circumferential direction of the pile body, the bending shape of the bending portion is matched with the shape of the step, and the first anchoring rib is welded and fixed with the pile collar through the bending portion.

7. The prefabricated building structure of claim 6, wherein said bent portion is flat; and/or the presence of a catalyst in the reaction mixture,

the depth of the step in the radial direction of the pile body is not less than 2 mm.

8. The prefabricated building structure of claim 1, wherein the pile hoop is a metal piece, the first anchoring rib is a metal piece having a material different from that of the pile hoop, the prefabricated building structure further comprises a welding piece, the welding piece is located between the first anchoring rib and the pile hoop, and the first anchoring rib is welded and fixed to the pile hoop through the welding piece.

9. The prefabricated building structure of claim 1, 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 prefabricated building structure is characterized in that a first axial rib body and/or a second axial rib body are further arranged in the prefabricated building structure, the first axial rib body and the second axial rib body extend along the axial direction of the pile body, the first axial rib body is located on the periphery of the second axial rib body, and the first axial rib body and/or the second axial rib body are connected to the embedded connecting piece;

the first axial rib body and/or the second axial rib body are/is fixedly connected with the first anchoring rib.

10. The prefabricated building structure of claim 9 further comprising a second anchoring rib welded to the end face protector, the second anchoring rib extending inwardly of the pile body and anchored therein.

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.

Disclosure of Invention

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

The invention provides a prefabricated building structure which comprises a pile body, a pile hoop and a first anchoring rib, 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; and two ends of the first anchoring rib are respectively welded and fixed at the step opposite to the pile sleeve hoop.

In one embodiment of the invention, the first anchoring ribs are in multiple groups, each group comprises a plurality of first anchoring ribs, and the first anchoring ribs of each group are located on the same radial plane of the pile body.

In one embodiment of the present invention, a plurality of the first anchoring ribs of the same group are arranged to intersect with each other.

In one embodiment of the invention, the first anchoring rib comprises a relief portion for relieving at an intersection of the first anchoring rib; and/or the presence of a catalyst in the reaction mixture,

the two first anchoring ribs which are mutually crossed are fixedly connected; and/or the presence of a catalyst in the reaction mixture,

the second hoop section is flush with the peripheral wall of the pile body.

In an embodiment of the present invention, the first anchoring rib is provided with at least two yielding portions, wherein the two yielding portions respectively yield in different directions.

In an embodiment of the invention, the end of the first anchoring rib further includes a bending portion, the bending portion is bent towards the circumferential direction of the pile body, the bending shape of the bending portion is matched with the shape of the step, and the first anchoring rib is welded and fixed with the pile ferrule through the bending portion.

In one embodiment of the present invention, the bent portion is flat; and/or the presence of a catalyst in the reaction mixture,

the depth of the step in the radial direction of the pile body is not less than 2 mm.

In an embodiment of the present invention, the pile hoop is a metal member, the first anchoring rib is a metal member having a material different from that of the pile hoop, the prefabricated building structure further includes a welding sheet, the welding sheet is located between the first anchoring rib and the pile hoop, and the first anchoring rib is welded and fixed to the pile hoop through the welding sheet.

In an embodiment of the present invention, the prefabricated building structure further includes an embedded connector, the embedded connector is fixedly disposed at an end of the pile body, and the embedded connector 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 prefabricated building structure is characterized in that a first axial rib body and/or a second axial rib body are further arranged in the prefabricated building structure, the first axial rib body and the second axial rib body extend along the axial direction of the pile body, the first axial rib body is located on the periphery of the second axial rib body, and the first axial rib body and/or the second axial rib body are connected to the embedded connecting piece;

the first axial rib body and/or the second axial rib body are/is fixedly connected with the first anchoring rib.

In one embodiment of the invention, the prefabricated building structure further comprises a second anchoring rib, the second anchoring rib is welded and fixed on the end face protection part, and the second anchoring rib extends towards the interior of the pile body and is anchored into the pile body.

In the prefabricated building structure provided by the invention, two ends of the first anchoring rib are respectively and fixedly connected to the positions corresponding to the pile hoops, so that the combination between the pile hoops and the pile body is tighter, and the service life of the prefabricated building structure is prolonged; and the arrangement of the first anchoring ribs improves the reinforcement ratio of the end part of the pile body, so that the mechanical strength of the end part of the prefabricated building structure is greatly improved. The pile sleeve can also protect the first anchoring rib from being corroded when the first anchoring rib is exposed outside. 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 first anchoring ribs are welded and fixed on the steps on the pile hoops, an operator can directly place the first anchoring ribs on the steps for welding, and the steps can play a role in supporting the first anchoring ribs, so that the welding of the operator is facilitated; and the welding area between the first anchoring rib and the pile sleeve hoop can be increased by welding the first anchoring rib 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 one 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. 1 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 pile ferrule according to an embodiment of the present invention;

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

FIG. 8 is a schematic view of the pile cuff of FIG. 7 at another angle;

FIG. 9 is a schematic view of a portion of the structure of FIG. 8;

FIG. 10 is a schematic view of the first anchoring rib of FIG. 8;

FIG. 11 is a schematic view of a first anchor rib according to another embodiment of the present invention;

fig. 12 is a schematic structural view of a pile ferrule according to another embodiment of the present invention;

FIG. 13 is an enlarged view of a portion B of FIG. 12;

FIG. 14 is a schematic view of two prefabricated building structures interconnected in one embodiment;

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

FIG. 16 is a schematic structural view of the docking station of FIG. 15;

FIG. 17 is a schematic view of the base of FIG. 15;

FIG. 18 is a top view of the clasp of FIG. 15;

fig. 19 is a cross-sectional view of the clasp of fig. 18.

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 first anchoring rib; 81. a bending section; 82. a relief portion; 83. a second anchoring rib; 90. a binding member; 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 clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the 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 view 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 present invention provides a prefabricated building structure 100 for use in a foundation building in the field of construction technology. 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 hollow pile (not shown), or a solid pile (as shown in fig. 5); 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 is flush with the outer peripheral wall of the pile body.

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, referring to fig. 6, the prefabricated building structure of the present invention further includes a first anchoring rib 80, and two ends of the first anchoring rib 80 are respectively welded and fixed at the step 113 opposite to the pile hoop 60.

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; and the arrangement of the first anchoring ribs 80 improves the reinforcement ratio of 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 first anchoring rib 80 is welded and fixed on the step of the pile hoop 60, an operator can directly place the first anchoring rib 80 on the step 113 for welding, and the step 113 can play a role in supporting the first anchoring rib 80, so that the operator can weld conveniently; and welding the first anchoring rib 80 at the step of the pile hoop 60 can increase the welding area between the first anchoring rib 80 and the pile hoop 60, and improve the welding strength.

It should be noted that the step 113 is not necessarily a plane, but may be a curved surface or a special-shaped surface, as long as the welding area can be increased to facilitate the prevention of the first anchoring rib 80 from the step 113.

It is understood that when the pile body 101 is a hollow pile (e.g., a pipe pile, a hollow square pile), the first anchoring rib 80 may be provided. If it is desired to avoid the first anchoring rib 80 from being exposed, it is only necessary that the first anchoring rib 80 avoid the hollow part in the middle of the pile body 101.

Preferably, the depth of the step 113 in the radial direction of the pile body 101 is not less than 2mm, so that the first anchoring rib 80 can be placed and welded and fixed with the first anchoring rib 80 conveniently.

In one embodiment, the first anchoring ribs 80 are provided in a plurality of groups, each group including a plurality of first anchoring ribs 80, and each group of first anchoring ribs 80 are located in the same radial plane of the pile body 101. So set up, set up the first anchor muscle 80 of multiunit in stake body 101, can improve the reinforcement ratio of stake body 101 tip by a wide margin to be provided with step 113 between first hoop 111 and the second hoop 112, be convenient for fix a position between the first anchor muscle 80 of multiunit.

Preferably, the plurality of first anchoring ribs 80 of the same group are arranged to intersect with each other, as shown in fig. 6 to 13. The crossed arrangement can facilitate the fixed connection between the first anchoring ribs 80 in the same group, and the mechanical strength of the net-shaped structure formed by the first anchoring ribs 80 is higher. Of course, the first anchoring ribs 80 of the same group may be arranged in parallel; or in an angular arrangement, for example, four first anchoring ribs 80 are spliced into a "W" shape, as long as the first anchoring ribs 80 can be fixed at the step 113.

Preferably, the two first anchor ribs 80 are fixedly connected, such as welded, bound, clamped or glued, to improve the connection strength between the first anchor ribs 80. It can be understood that, when the plurality of first anchoring ribs 80 are arranged in a cross manner, in order to ensure that the end portions of the same group of first anchoring ribs 80 can be contacted with the step 113, the same group of first anchoring ribs 80 can be integrally formed to form a net-shaped structure; the first anchoring rib 80 in one direction may be cut and then welded to the first anchoring rib 80 in the other direction to ensure that the first anchoring ribs 80 in the same group are substantially located on the same plane.

In one embodiment, referring again to fig. 2, the pile ferrule 60 is a metal member, the first anchoring rib 80 is a metal member different from the pile ferrule 60, the prefabricated building structure 100 further includes a welding tab 50, the welding tab 50 is located between the first anchoring rib 80 and the pile ferrule 60, and the first anchoring rib 80 is welded and fixed to the pile ferrule 60 by the welding tab 50. The welding piece 50 assists the welding fixation between the pile hoop 60 and the first anchoring rib 80, so that the welding strength can be improved, the material of the pile hoop 60 or the material of the first anchoring rib 80 can be diversified, and the applicability is wider. The welding sheet 50 may be integrally formed with one of the first anchoring rib 80 or the pile ferrule 60 in advance, and then welded and fixed with the other at the construction site; or may be welded and fixed to the first anchoring rib 80 and the pile ferrule 60 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 welding tab 50 is a single material, the welding tab 50 should be capable of being welded to both the pile cuff 60 and the first anchoring rib 80; when the welding plate 50 is made of various materials, it may have a transitional multi-layer structure, one side of which can be welded and fixed with the pile ferrule 60, and the other side of which can be welded and fixed with the first anchoring rib 80.

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

Referring to fig. 7 again, 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. 9 to 11 again, preferably, the end of the first anchoring rib 80 further includes a bending portion 81, the bending portion 81 is bent toward the circumferential direction of the pile 101, the bending shape of the bending portion 81 is matched with the shape of the step 113, and the first anchoring rib 80 is welded and fixed to the pile casing hoop 60 through the bending portion 81. The arrangement of the bending part 81 can further increase the contact area between the first anchoring rib 80 and the pile ferrule 60, so that the welding area can be increased; moreover, the bending portion 81 bends toward the circumferential direction of the pile body 101, so that the first anchoring rib 80 can be conveniently placed on the step 113, and the cylindrical first anchoring rib 80 is prevented from rolling on the step 113. It is understood that when the pile body 101 is a square pile, the bent portion 81 may be a straight line or an L-shape; when the pile body 101 is a tubular pile, the bent portion 81 may be an arc shape to fit the shape of the step 113. In addition, the bending portion 81 may also be bent along the axial direction of the pile body 101, so that the bending portion 81 is adapted to the shape of the inner wall of the first hoop section 111 or the second hoop section 112, which can also achieve the effect of increasing the welding area, and can be selected according to actual requirements. Of course, the bent portion 81 may be manufactured in a factory and then shipped, or may be manufactured on site and then welded to the pile ferrule 60, which is not limited herein.

Preferably, the bent portion 81 is flat (not shown). The flat bent portion 81 can further increase the welding area, and can improve the placement stability of the first anchoring rib 80 on the step 113. Of course, the bent portion 81 may be formed of a cylindrical rib without being flattened.

Further, as shown in fig. 11 to 13, the first anchoring rib 80 includes a relief portion 82, and the relief portion 82 is used for relieving at the intersection of the first anchoring rib 80. The arrangement of the position-giving part 82 makes the net-shaped first anchoring rib 80 easier to form, and the position-giving part 82 can further embed the first anchoring rib 80 into the concrete of the pile body 101.

It is understood that the relieving portion 82 in fig. 11 to 13 is only an example, and the relieving portion 82 may have other shapes as long as it can perform the relieving function. The first anchoring ribs 80 of the same group may all be provided with relief portions 82 to cooperate with each other; alternatively, a part of the first anchoring ribs 80 may be provided with the relief portion 82, and another part of the first anchoring ribs 80 may not be provided with the relief portion 82, as shown in fig. 13.

In one embodiment, the first anchoring rib 80 is provided with at least two yielding portions 82, wherein the two yielding portions 82 respectively yield in different directions, as shown in fig. 11. So set up, netted first anchor muscle 80 structure is more firm to the atress is more even, is difficult for scattering the frame.

In one embodiment, referring to fig. 3, the prefabricated building structure 100 further includes a second anchoring rib 83, the second anchoring rib 83 is welded and fixed to the end-face protection part 62, and the second anchoring rib 83 extends towards the inside of the pile body 101 and is anchored into the pile body 101. The second anchor rib 83 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 the second anchoring rib 83 may also be provided with a bending portion 81 and/or a receding portion 82, which will not be described herein.

Referring again to fig. 1, the prefabricated building structure 100 shown in fig. 1 is a partially hollow pile. The pile body 101 comprises a hollow part 10 and a solid part 20 which are connected with each other, and a core groove 11 is formed in the hollow part 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, the first/second anchoring rib 80/83 is fixed to the first axial rib body 31 by binding with a binding member 90. Of course, the first anchoring rib 80 and the first axial rib body 31/the second anchoring rib 83 may be fixed by other methods, such as welding, snap-fit connection, gluing, etc., without limitation. The tying member 90 is preferably a wire.

In one embodiment, the first anchoring rib 80 and the second anchoring rib 83 are fixed by binding with a binding piece 90. Of course, the first anchoring rib 80 and the second anchoring rib 83 may be fixed by other methods, such as welding, snap-fit connection, gluing, etc., without limitation. The tying member 90 is preferably a wire.

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.

In one embodiment of the present invention, the pile ferrule 60 is disposed at an end of the pile body 101 relatively close to the solid portion 20, and/or the pile ferrule 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 5 again, in an embodiment of the present invention, the embedded connector 70 is disposed on the first axial rib 31 and/or the second axial rib 41, and the embedded connector 70 is located at an 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.

In one embodiment, the first anchoring rib 80 is also fixedly connected to the second axial rib body 41. So set up, improved the fastness of first anchor muscle 80 to increase prefabricated building structure 100's reinforcement rate, improved prefabricated building structure 100's intensity.

Further, first anchor muscle 80 is through mode such as binding, welding, cementing and second axial muscle body 41 fixed connection to further improve first anchor muscle 80's stability, and formed holistic structure between first cage, the second cage, stake ferrule 60 and the first anchor muscle 80, further strengthened prefabricated building structure 100's intensity.

Referring also to fig. 14-19, fig. 14 is a schematic view of an embodiment of two prefabricated building structures connected to each other;

FIG. 15 is a schematic structural view of the quick docking assembly of FIG. 14; FIG. 16 is a schematic structural view of the docking station of FIG. 15; FIG. 17 is a schematic view of the base of FIG. 15; FIG. 18 is a top view of the clasp of FIG. 15; fig. 19 is a cross-sectional view of the clasp of fig. 18.

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 may be, but is not limited to, the above-mentioned directions, and even a partial angular offset 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 invention, two ends of the first anchoring rib 80 are respectively and fixedly connected to the positions corresponding to the pile hoops 60, so that the combination between the pile hoops 60 and the pile body 101 is tighter, and the service life of the prefabricated building structure 100 is prolonged; and the arrangement of the first anchoring ribs 80 improves the reinforcement ratio of the end of the pile body 101, thereby greatly improving the mechanical strength of the end of the prefabricated building structure 100. The pile cuff 60 also protects the first anchoring rib 80 from corrosion of the first anchoring rib 80 exposed to the outside. 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 first anchoring ribs 80 are welded and fixed on the steps 113 on the pile hoop 60, an operator can directly place the first anchoring ribs 80 on the steps 113 for welding, and the steps 113 can play a role in supporting the first anchoring ribs 80, so that the operator can weld conveniently; moreover, the welding of the first anchoring rib 80 at the step 113 of the pile ferrule 60 can increase the welding area between the first anchoring rib 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 should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.