Connecting structure of prefabricated parts

Abstract

The utility model discloses a connecting structure of prefabricated parts, which comprises two prefabricated parts connected with each other in the horizontal direction, and each prefabricated part comprises a part main body and a horizontal steel bar; the edge of the component body is provided with an edge cavity which is through from top to bottom. The connecting structure further comprises close splicing connection or non-close splicing connection. The close splicing connection comprises the steps that the ends of the horizontal steel bars of the component bodies are of closed structures, the closed structures are exposed to the side ends of the component bodies, and after the component bodies of the two horizontal adjacent prefabricated components are in butt joint, edge cavities of the edges of the component bodies are in butt joint to form a cast-in-place area; the cast-in-place areas are each vertically provided with one or more rear-inserted steel bars, and horizontal stirrups are arranged on the peripheries of the rear-inserted steel bars of the cast-in-place areas.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated components, in particular to a connection structure of prefabricated components. Background Art

[0002] At present, in a prefabricated component, a cast-in-place cavity is constructed inside. After the prefabricated component is transported to the construction site, adjacent prefabricated components are connected horizontally or vertically to realize the assembly of the prefabricated components.

[0003] However, for some prefabricated components, when they are connected to each other in the horizontal direction, there are problems such as poor strength of the connection nodes and poor integrity.

[0004] Furthermore, for some prefabricated components, concrete can only be poured from the top surface, and a corrugated pipe that runs from top to bottom and is reserved inside the prefabricated component needs to be used as a concrete pouring channel, which results in high costs.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The purpose of the utility model is to overcome the above technical deficiencies and provide a connection structure of prefabricated components to at least solve some of the technical problems existing in the related art.

[0007] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0008] According to one aspect of the utility model, a connection structure of prefabricated components is provided, comprising two prefabricated components connected to each other in a horizontal direction, wherein the prefabricated components include a component body and horizontal steel bars;

[0009] The edge of the component body has an edge cavity that runs through from top to bottom, and the connection structure further comprises: a close fitting connection or a non-close fitting connection;

[0010] The close connection includes: the ends of the horizontal steel bars of the component body are closed structures, and the closed structures extend from the ends of the component body, and after the component bodies of two horizontally adjacent prefabricated components are butted, the edge cavities of the edges of the component bodies are butted to form a cast-in-place area; the cast-in-place areas are vertically provided with one or more post-inserted steel bars, wherein the periphery of the post-inserted steel bars of the cast-in-place areas is provided with horizontal stirrups;

[0011] The non-close-fit connection includes: if the edge of the prefabricated component is a hidden column, the stirrups of the hidden column are exposed to the edge cavity; there is a gap between the component bodies of two horizontally adjacent prefabricated components, and the gap forms a cast-in-place area; one or more post-inserted steel bars are vertically arranged in the edge cavity and the cast-in-place area, wherein horizontal stirrups are arranged around the post-inserted steel bars in the cast-in-place area;

[0012] Alternatively, a cast-in-place cavity is constructed at the bottom of the side of the component body, and the side end of the cast-in-place cavity is connected to the side of the component body, and the bottom end is connected to the bottom surface of the component body, so that during on-site casting, concrete can enter from the side of the cast-in-place cavity to fill the cast-in-place cavity.

[0013] Optionally, in the close-fitting connection, if multiple horizontal stirrups are included, the outer sides of each horizontal stirrup are connected by connecting steel bars, so that each horizontal stirrup can be placed together from top to bottom into the edge cavity of one of the prefabricated components, and then moved closer to another prefabricated component, so that each horizontal stirrup is located in the middle of the cast-in-place area.

[0014] Optionally, in the close-fitting connection, if multiple horizontal stirrups are included, the outer sides of each horizontal stirrup are connected by connecting steel bars, so that each horizontal stirrup can be placed together from top to bottom into the edge cavity of one of the prefabricated components, and then moved closer to another prefabricated component, so that each horizontal stirrup is located in the middle of the cast-in-place area.

[0015] Optionally, in the close-fitting connection, the edge of the component body is configured with a horizontal stirrup insertion opening leading to the cast-in-place area for inserting horizontal stirrups.

[0016] Optionally, in the close-fitting connection, if multiple horizontal stirrups are included, multiple horizontal stirrup insertion openings are correspondingly set, and the inner sides of the middle parts of each horizontal stirrup are connected by connecting steel bars so that each horizontal stirrup can be placed into the cast-in-place area through its own horizontal stirrup insertion opening.

[0017] Optionally, the connection structure of two vertically adjacent prefabricated components includes: the top of the rear-inserted steel bars of the prefabricated component located at the bottom is overlapped, welded or connected with the bottom of the rear-inserted steel bars of the prefabricated component located at the top by mechanical connectors.

[0018] Optionally, each of the post-inserted steel bars includes at least two sections, and a window communicating with the cavity is configured at one or more locations on the surface of the component body, so that a connection node between two adjacent sections of the post-inserted steel bars can be exposed to the window.

[0019] Optionally, the window is located at the bottom of the surface of the component body.

[0020] Optionally, the window is located at the bottom of the side edge surface of the component body.

[0021] Optionally, the window is located in the middle, upper middle or lower middle of the surface of the component body.

[0022] Optionally, the windows include a plurality of windows, which are arranged along the length direction of the prefabricated component and staggered in the height direction of the prefabricated component.

[0023] Optionally, the component body is also constructed with an exhaust hole connected to the cast-in-place cavity.

[0024] Optionally, the connection structure also includes a connection structure between an upper and lower layer of prefabricated components, wherein the upper and lower layer of prefabricated components are respectively provided with an upper layer of post-inserted circular steel bars and a lower layer of post-inserted circular steel bars, and the lower layer of post-inserted circular steel bars extend into the through cavity of the upper layer of prefabricated components to be connected to the upper layer of post-inserted circular steel bars.

[0025] Optionally, the connection structure also includes a connection structure between an upper and lower layer of prefabricated components, wherein the annular longitudinal reinforcements of the upper and lower layer of prefabricated components are prefabricated in the component body, and the connection structure includes post-inserted annular reinforcements, the bottom of the post-inserted annular reinforcements is located at the top of the cast-in-place cavity of the lower layer of prefabricated components, and the top of the post-inserted annular reinforcements is located at the top and bottom of the cast-in-place cavity of the upper layer of prefabricated components.

[0026] Optionally, a water stop groove is constructed on the side of the prefabricated component along the thickness direction of the component body.

[0027] According to another aspect of the utility model, an embodiment of the utility model provides a method for connecting prefabricated components, which is used for the above-mentioned connection structure, and the method includes: close-fitting connection or non-close-fitting connection;

[0028] The close connection includes: the ends of the horizontal reinforcements of the component body are closed structures, and the closed structures extend from the ends of the component body, then the component bodies of two horizontally adjacent prefabricated components are butted together to form a cast-in-place area with the edge cavities of the component body edges butted together; horizontal stirrups are arranged in the cast-in-place area, and then the rear-inserted reinforcements are inserted into the horizontal stirrups;

[0029] The non-close-fit connection includes: if the edge of the prefabricated component is a hidden column, the stirrups of the hidden column are exposed to the edge cavity, and there is a gap between the component bodies of two horizontally adjacent prefabricated components, and the gap forms a cast-in-place area; horizontal stirrups are arranged in the cast-in-place area, and then the rear-inserted steel bars are inserted into the horizontal stirrups, and the rear-inserted steel bars are inserted into the edge cavity;

[0030] Alternatively, a cast-in-place cavity is constructed at the bottom of the side of the component body, and the side end of the cast-in-place cavity is connected to the side of the component body, and the bottom end is connected to the bottom surface of the component body, so that during on-site casting, concrete can enter from the side of the cast-in-place cavity to fill the cast-in-place cavity.

[0031] Optionally, in the non-close-fit connection, if the outer end of the horizontal reinforcement of the component body is a closed structure and extends from the side end of the component body to the cast-in-place area, the post-inserted reinforcement also passes through the closed structure of the outer end of the horizontal reinforcement.

[0032] Optionally, in the close-fitting connection, if multiple horizontal stirrups are included, the outer sides of each horizontal stirrup are connected by connecting steel bars, and the horizontal stirrups are placed together from top to bottom into the edge cavity of one of the prefabricated components, and then moved closer to another prefabricated component, so that the horizontal stirrups are located in the middle of the cast-in-place area.

[0033] Optionally, in the close-fitting connection, the edge of the component body is constructed with a horizontal stirrup insertion opening leading to the cast-in-place area, and the method further includes: inserting horizontal stirrups through the horizontal stirrup insertion opening.

[0034] Optionally, in the close-fitting connection, if multiple horizontal stirrups are included, multiple horizontal stirrup insertion openings are correspondingly set, and the inner sides of the middle parts of each horizontal stirrup are connected by connecting steel bars, and each horizontal stirrup is placed together into the cast-in-place area through its own horizontal stirrup insertion opening.

[0035] Optionally, when connecting two vertically adjacent prefabricated components, the top of the rear-inserted steel bars of the prefabricated component located at the bottom is overlapped, welded or connected with the bottom of the rear-inserted steel bars of the prefabricated component located at the top by mechanical connectors.

[0036] Optionally, the windows between two horizontally adjacent prefabricated components may be staggered so that the later inserted steel bars are staggered and connected in the height direction.

[0037] Optionally, the height of the connection joint between two adjacent sections of rear-inserted steel bars is adjustable.

[0038] Optionally, the post-inserted steel bars are steel bars with closed ends or steel bars with unclosed free ends.

[0039] Optionally, the upper and lower layers of prefabricated components are respectively provided with an upper layer of rear-inserted circular reinforcement and a lower layer of rear-inserted circular reinforcement, and the lower layer of rear-inserted circular reinforcement extends into the through cavity of the upper layer of prefabricated components to be connected with the upper layer of rear-inserted circular reinforcement.

[0040] Optionally, the annular longitudinal reinforcements of the upper and lower prefabricated components are prefabricated in the component body, and the connection structure includes post-inserted annular reinforcements, the bottom of which is located at the top of the cast-in-place cavity of the lower prefabricated component, and the top of which is located at the top and bottom of the cast-in-place cavity of the upper prefabricated component.

[0041] The connection structure of prefabricated components provided by the utility model, in some embodiments, is provided with a through edge cavity on the side of the prefabricated component, and is connected by close splicing or non-close splicing, and a post-inserted steel bar is provided at the cast-in-place node after close splicing or non-close splicing, so that it forms an effective combination with the concrete, thereby improving the strength and integrity of the cast-in-place node. In some embodiments, the prefabricated component is provided with a cast-in-place cavity at the bottom of the side of the component body, so that concrete can enter from the bottom side, reducing costs. In some preferred embodiments, if the edge of the prefabricated component is a hidden column, the side of the stirrup of the hidden column close to the cast-in-place area is also exposed to the side end of the edge cavity, so that a part of the stirrup of the hidden column can be combined with the concrete in the cast-in-place area, thereby improving the integrity and overall strength of the cast-in-place node. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of a prefabricated component connection structure provided by one embodiment of the utility model;

[0043] Figure 2 for Figure 1 An enlarged structural diagram of the prefabricated component connection structure at the top;

[0044] Figure 3 A schematic diagram of a partial enlargement of a prefabricated component connection structure at the top provided in another embodiment of the utility model;

[0045] Figure 4 A schematic diagram of a partial enlargement of a prefabricated component connection structure at the bottom provided in another embodiment of the utility model;

[0046] Figure 5 A schematic diagram of a prefabricated component connection structure provided in another embodiment of the utility model;

[0047] Figure 6 for Figure 5 An enlarged structural diagram of the prefabricated component connection structure at the connection node;

[0048] Figure 7 A schematic diagram of a prefabricated component connection structure provided in another embodiment of the utility model;

[0049] Figure 8 for Figure 7 Schematic diagram of the horizontal stirrups in the figure before they are inserted;

[0050] Fig. 9 It is a schematic diagram of the structure of horizontal stirrups and their connecting steel bars;

[0051] Fig.10 This is the enlarged structural diagram after the horizontal stirrups are inserted;

[0052] Fig.11 for Fig.10 Schematic diagram of another state (horizontal stirrups move toward the cast-in-place area);

[0053] Fig.12 for Fig.10 Schematic diagram of another state (horizontal stirrups have been inserted and the rear reinforcement is inserted);

[0054] Fig.13 A schematic structural diagram of horizontal stirrups and connecting steel bars in a prefabricated component connection structure provided by another embodiment of the utility model;

[0055] Fig.14 For use Fig.13 Schematic diagram of a precast component connection structure with horizontal stirrups;

[0056] Fig.15 for Fig.14 A top enlarged structural diagram of a prefabricated component connection structure;

[0057] Fig.16 for Fig.15 Schematic diagram of another state (horizontal stirrups are placed in the cast-in-place area);

[0058] Fig.17 for Fig.15 Schematic diagram of another state (horizontal stirrups have been inserted and the rear reinforcement is inserted);

[0059] Fig.18 A schematic diagram of a prefabricated component connection structure (annular end) provided for another embodiment of the utility model;

[0060] Fig.19 A schematic diagram of a prefabricated component connection structure provided in another embodiment of the utility model;

[0061] Fig. 20 for Fig.19 The connection structure of the enlarged structure diagram at the top;

[0062] Fig.21 for Fig.19 An enlarged structural diagram of the connection structure at the upper and lower connection nodes;

[0063] Fig. 22 A schematic diagram of an enlarged structure of a prefabricated component connection structure at the top provided by another embodiment of the utility model;

[0064] Fig.23 A schematic diagram of a prefabricated component connection structure provided in another embodiment of the utility model;

[0065] Fig.24 for Fig.23A magnified structural diagram at the post-inserted reinforcement connection node;

[0066] Fig.25 A schematic diagram of a prefabricated component connection structure provided for another embodiment of the utility model (only half of it is shown);

[0067] Fig.26 for Fig.25 A schematic diagram of the enlarged structure at the top;

[0068] Fig. 27 A schematic diagram of a prefabricated component connection structure provided in another embodiment of the utility model;

[0069] Fig.28 for Fig. 27 An enlarged schematic diagram of the structure at the bottom side;

[0070] Fig.29 for Fig. 27 A schematic diagram of the enlarged structure at the bottom middle;

[0071] Fig.30 A schematic diagram of a prefabricated component connection structure provided in another embodiment of the utility model;

[0072] Fig.31 for Fig.30 An enlarged schematic diagram of the structure at the bottom side;

[0073] Fig.32 A schematic diagram of a prefabricated component structure of a prefabricated component connection structure provided by one embodiment of the utility model;

[0074] Fig.33 for Fig.32 Schematic diagram of the structure from another angle;

[0075] Fig.34 for Fig.32 An enlarged structural diagram from another angle at the bottom;

[0076] Fig.35 for Fig.33 A schematic diagram of the structure when the prefabricated components are connected at the upper and lower levels;

[0077] Fig.36 for Fig.35 A schematic diagram of the enlarged structure at the connection node;

[0078] Fig.37 A schematic diagram of a prefabricated component structure of a prefabricated component connection structure provided by one embodiment of the utility model;

[0079] Fig.38 for Fig.37 An enlarged structural diagram of the top of the prefabricated component;

[0080] Fig.39 for Fig.37 An enlarged structural diagram of the bottom of the prefabricated component;

[0081] Fig.40 A schematic diagram of a prefabricated component structure of a prefabricated component connection structure provided by another embodiment of the utility model;

[0082] Fig.41 for Fig.40 An enlarged structural diagram of the top of the prefabricated component;

[0083] Fig.42 for Fig.40 An enlarged structural diagram of the bottom of the prefabricated component;

[0084] Fig.43 A schematic diagram of a prefabricated component connection structure provided by an embodiment of the utility model (non-close-fit connection);

[0085] Fig.44 for Fig.43 An enlarged structural diagram of the prefabricated component connection structure at the top;

[0086] Fig.45 for Fig.43 An enlarged structural diagram of the prefabricated component connection structure at the bottom;

[0087] Fig.46 A schematic diagram of a prefabricated component connection structure provided by another embodiment of the utility model (non-close-fit connection);

[0088] Fig.47 for Fig.46 An enlarged structural diagram of the prefabricated component connection structure at the top;

[0089] Fig.48 for Fig.46 An enlarged structural diagram of the prefabricated component connection structure at the bottom;

[0090] Fig.49 An enlarged schematic diagram of a prefabricated component connection structure at the top provided by another embodiment of the utility model (non-close-fit connection)

[0091] Fig.50 An enlarged schematic diagram of a prefabricated component connection structure at the top provided by another embodiment of the utility model (non-close-fit connection);

[0092] Fig.51 A schematic diagram of a prefabricated component connection structure provided by another embodiment of the utility model (non-close-fit connection);

[0093] Fig.52 for Fig.51An enlarged structural diagram of the prefabricated component connection structure at the top;

[0094] Fig.53 for Fig.51 An enlarged structural diagram of the prefabricated component connection structure at the bottom;

[0095] Fig.54 A schematic structural diagram of a prefabricated component provided in another embodiment of the utility model;

[0096] Fig.55 A schematic structural diagram of a prefabricated component provided in another embodiment of the utility model;

[0097] Fig.56 A schematic top view of a connection structure of prefabricated components provided in another embodiment of the utility model;

[0098] Fig.57 A schematic top view of a connection structure of prefabricated components provided in another embodiment of the utility model;

[0099] Fig.58 A schematic top view of a connection structure of prefabricated components provided in another embodiment of the utility model;

[0100] Fig.59 A schematic structural diagram of a prefabricated component provided in another embodiment of the utility model;

[0101] Fig.60 for Fig.59 A schematic diagram of the enlarged structure at the bottom;

[0102] Fig.61 for Fig.59 Schematic diagram of the connection structure of prefabricated components;

[0103] Fig.62 A schematic top view of a connection structure of prefabricated components provided in another embodiment of the present invention;

[0104] Fig.63 A schematic top view of a connection structure of prefabricated components provided in another embodiment of the present invention;

[0105] In the figure:

[0106] 1-component body; 2-rear-inserted steel bars; 3-cavity; 4-window; 5-edge cavity; 6-stirrups of concealed column; 7-mechanical connector; 8-horizontal stirrup placement entrance; 9-horizontal stirrups; 10-cast-in-place cavity; 11-vent; 12-horizontal steel bars; 13-cast-in-place area; 15-connecting steel bars; 16-ring; 17-keyway; 18-longitudinal steel bars; 21-upper layer rear-inserted ring steel bars; 22-lower layer rear-inserted ring steel bars; 23-upper layer ring-shaped longitudinal steel bars; 24-lower layer ring-shaped longitudinal steel bars; 25-rear-inserted ring steel bars; 26-water stop groove. DETAILED DESCRIPTION

[0107] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0108] The utility model provides a prefabricated component in a prefabricated component connection structure, combined with Figure 1-58 The invention comprises a component body 1, wherein the component body 1 is configured with a cavity 3 for accommodating one or more post-inserted steel bars 2, such as 1, 2 or N (N is an integer greater than 2). The cavity may be roughened, key grooves may be added, or it may not be roughened.

[0109] The so-called post-inserted steel bars refer to the steel bars that are inserted during on-site assembly after the prefabricated component is formed. Because they are not pre-placed in the prefabricated component, but are cast in place after the prefabricated component is produced, they are called post-inserted steel bars, or post-inserted bars. In this embodiment, each post-inserted steel bar 2 includes at least two sections, that is, it is connected by at least two sections of steel bars. One or more positions on the surface of the component body 1 are also constructed with windows 4 connecting the cavity 3, so that the connection nodes of two adjacent sections of post-inserted steel bars 2 can be exposed to the window 4. In this way, when it is necessary to connect the two sections of post-inserted steel bars 2, they can be connected at the window to achieve accurate and quick connection and improve work efficiency. Before pouring concrete, it is sufficient to support the formwork to block the window 4.

[0110] As an example, if the cavity is an edge cavity 5 of a concealed column located at the edge of a prefabricated component, the side of the stirrup 6 of the concealed column close to the edge of the prefabricated component, i.e., the closed end of the side, is also exposed to the edge cavity 5. In this way, a part of the stirrup 6 of the concealed column is located in the component body 1, and the other part is located at the cast-in-place node, which can form a good combination with the cast-in-place concrete, improve the overall strength of the cast-in-place node, and prevent concrete cracking during mold assembly and casting.

[0111] The number, position and arrangement of the windows 4 can be flexibly adjusted according to actual conditions, and the utility model does not make any special restrictions. For example, the window 4 is located at the bottom of the surface of the component body 1, at the bottom of the side edge surface of the component body 1, at the middle, upper middle or lower middle of the surface of the component body 1. When there are multiple windows 4, they can be arranged along the length direction of the prefabricated component and staggered in the height direction of the prefabricated component.

[0112] As an example, the cavity 3 is a vertical through cavity. For example, the edge cavity 5 mentioned in the above embodiment penetrates the component body 1 from top to bottom.

[0113] As an example, two adjacent sections of rear inserted steel bars 2 are connected, welded or overlapped by mechanical connectors 7. In this embodiment, the connection is made by mechanical connectors 7, such as steel sleeves, various suitable joints, or any other component that can connect steel bars together. Of course, as described above, the connection method does not constitute a limitation of the present invention, and any possible connection method is within the protection scope of the present invention.

[0114] The edge of the component body 1 is constructed with a horizontal stirrup insertion opening 8 for inserting horizontal stirrups 9. When two horizontally adjacent prefabricated components are connected, the post-insertion steel bars 2 at the cast-in-place node need to be connected with horizontal stirrups 9. At this time, horizontal stirrups 9 need to be set. In this embodiment, by pre-constructing the horizontal stirrup insertion opening 8, the horizontal stirrups 9 can be easily inserted along the horizontal stirrup insertion opening 8.

[0115] As an example, combining Figure 59-61 , a cast-in-place cavity 10 is constructed at the bottom of the side of the component body 1, and the side end of the cast-in-place cavity 10 is connected to the side of the component body 1, and the bottom end is connected to the bottom surface of the component body 1, so that when pouring on site, concrete can enter from the side of the cast-in-place cavity 10, thereby filling the cast-in-place cavity 10. In this way, concrete can enter from the bottom side, reducing costs. In addition, the embedded parts are easy to install, reducing the difficulty of production, and there is no need to vibrate from the bellows during construction, which reduces the process and can also ensure that the concrete in the cavity is dense. In some embodiments, a keyway 17 is also constructed in the cast-in-place cavity 10 to further increase the bonding area between the new and old concrete.

[0116] Optionally, the component body 1 is also configured with an exhaust hole 11 connected to the cast-in-place cavity for exhausting air, thereby improving the homogeneity and overall strength of the concrete poured in the cast-in-place area.

[0117] According to one aspect of the utility model, a connection structure of prefabricated components is provided, comprising two of the above-mentioned prefabricated components, wherein the two prefabricated components are connected to each other in a horizontal direction or in a vertical direction.

[0118] When connecting in the horizontal direction, there are two connection methods: close connection and non-close connection.

[0119] The so-called close connection means that the side ends of the component body 1 are almost closely spliced ​​together with almost no gaps, and the edge cavity 5 is basically a cast-in-place area. The so-called non-close connection means that there is a gap between the side ends of the component body 1 to form a cast-in-place area.

[0120]

Dense structure

[0121] As an example, in the close-fitting connection structure, the end of the horizontal steel bar 12 of the prefabricated component is a generally annular or linear closed structure, which extends from the side end of the component body 1. At this time, the connection structure of two horizontally adjacent prefabricated components includes:

[0122] After the component bodies 1 of two horizontally adjacent prefabricated components are butted together, the edge cavities of the edge of the component body 1 are butted together to form a cast-in-place area 13. This method is a close-joined connection, that is, the edges of the component body 1 are almost completely closely joined, leaving only a small gap, which can be sealed with tape or other components during cast-in-place.

[0123] The cast-in-place area 13 is vertically provided with one or more post-inserted steel bars 2, each of which includes at least two sections, wherein the cast-in-place area 13 post-inserted steel bars 2 are provided with horizontal stirrups 9 on the periphery. For example, a group of post-inserted steel bars 2 can be respectively provided at the positions of the predicted components on both sides of the cast-in-place area.

[0124] As an example, the edge of the component body 1 is configured with a horizontal stirrup insertion port 8 leading to the cast-in-place area 13 for inserting the horizontal stirrup 9. The advantages thereof are as described in the above embodiments and will not be repeated here. For example, each horizontal stirrup 9 is inserted into a horizontal stirrup insertion port 8 (combined with Figure 1-6 ).

[0125] As an example, if multiple horizontal stirrups 9 are included, multiple horizontal stirrup insertion openings 8 are provided accordingly, and the inner side of the middle portion of each horizontal stirrup 9 (combined with Figure 13-17 ) are connected by connecting steel bars 15. Since there is a gap in the middle, the connecting steel bars 15 can pass through, so that each horizontal stirrup 9 can be placed into the cast-in-place area through its own horizontal stirrup placement entrance 8, which can improve the placement efficiency of the horizontal stirrups 9.

[0126] As an example, combining Figure 7-12If multiple horizontal stirrups 9 are included, the outer sides of each horizontal stirrup 9 are connected by connecting steel bars 15, so that each horizontal stirrup 9 can be placed together in the edge cavity 5 of one of the prefabricated components, and then moved closer to another prefabricated component, so that each horizontal stirrup 9 is located in the middle of the cast-in-place area 13, which can also improve the placement efficiency of the horizontal stirrups 9. This also has the advantage that there is no need to set a horizontal stirrup placement entrance, saving costs.

[0127] As an example, the connection structure of two vertically adjacent prefabricated components includes: the top of the post-inserted steel bars 2 of the prefabricated component located at the bottom is overlapped, welded or connected with the bottom of the post-inserted steel bars 2 of the prefabricated component located at the top by mechanical connectors.

[0128] As an example, combining Figure 19-23 When two prefabricated components are connected vertically, the post-insertion steel bars 2 in the prefabricated cavity 3 of the component body 1 can also be a linear structure. The connection node position of the upper and lower layers of post-insertion steel bars can be located at the bottom or middle of the component body 1.

[0129]

Non-dense structure

[0130] As an example, in a non-closed connection, you can use Figure 37-39 The common point of the prefabricated components shown in 40-42 is that the side end of the component body 1 has a through edge cavity 5, and the stirrups 6 of the hidden column extend from the side end of the component body 1. The difference is that Figure 37-39 The prefabricated component includes a prefabricated longitudinal steel bar 18, and the bottom end of the longitudinal steel bar 18 extends from the bottom end of the edge cavity 5, and Figure 40-42 The prefabricated longitudinal reinforcement extending from the bottom end of the edge cavity 5 is not included.

[0131] This type of prefabricated component can adopt a non-close-fit connection structure, that is, in the connection structure of two horizontally adjacent prefabricated components, including:

[0132] The cast-in-place area 13 is formed by the interval between the component bodies 1 of two horizontally adjacent prefabricated components; formwork (not shown in the figure) needs to be provided on both sides of the cast-in-place area 13 to achieve closure.

[0133] Edge cavity 5 located at the edge of the prefabricated component;

[0134] One or more post-inserted steel bars 2 are vertically arranged in both the edge cavity 5 and the cast-in-place area 13 , and each post-inserted steel bar 2 includes at least two sections, wherein horizontal stirrups 9 are arranged around the post-inserted steel bars 2 in the cast-in-place area 13 .

[0135] If the edge of the prefabricated component is a hidden column, the side close to the cast-in-place area 13 is also exposed to the edge cavity 5, and its effect is as described above and will not be repeated here. The end of the stirrup 6 of the hidden column can also be exposed to the side end of the component body 1.

[0136] Specifically, in one embodiment, Figure 43-45 As shown, the end of the rear-inserted steel bar 2 is a closed structure, that is, the end of the rear-inserted steel bar is ring-shaped.

[0137] In another embodiment, Figures 46-48 As shown, the end of the rear inserted steel bar 2 is a free end, that is, the rear inserted steel bar 2 is in a straight line. Figures 46-48 In the embodiment, the linear post-insertion steel bars 2 are connected at the upper and lower layers by mechanical connectors 7, and the connection nodes are located at the bottom of the edge cavity 5. It should be understood that the number of post-insertion steel bars 2 does not constitute a limitation of the present invention. Figures 46-48 Three groups of rear-inserted steel bars 2 are arranged in the edge cavity of the Fig.49 In the edge cavity 5, a group of rear inserted steel bars 2 are arranged, each group of two steel bars. Fig.50 In the embodiment, a group of rear-inserted steel bars 2 are arranged in the edge cavity 5, each group having one steel bar. On this basis, there can be various numbers, which can be flexibly arranged according to needs.

[0138] In another embodiment, in combination Figure 51-53 Furthermore, the horizontal reinforcement 12 of such prefabricated components can extend from the side ends of the component body 1 and extend into the cast-in-place area 13 to further enhance the connection strength. Figure 51-53 In the figure, the connection node of the rear-inserted steel bar 2 is located in the lower middle part of the component body.

[0139] Combination Figure 54-55 , in addition to the above embodiments, Figure 37-Figure 53 In addition to the window-type prefabricated components, Figure 54-55 The connection structure of the door type prefabricated component is the same as the introduction of the above embodiment, which will not be repeated here.

[0140] In addition, it should be understood that the connection structure provided in the embodiment of the present invention can be applied to both straight-line wall connections and corner walls (L-shaped, T-shaped, etc.), such as Figure 62-63 .

[0141] Another aspect of the utility model further provides a method for connecting prefabricated components, wherein the prefabricated components are the above-mentioned prefabricated components, and the method comprises:

[0142] When closely connected, it includes:

[0143] Butt two horizontally adjacent prefabricated components together so that the gap between the two component bodies 1 forms a cast-in-place area 13;

[0144] Insert horizontal stirrups 9 into the cast-in-place area 13;

[0145] One or more post-inserted steel bars 2 are vertically arranged in the edge cavity 5 and the cast-in-place area 13 . Each post-inserted steel bar 2 includes at least two sections. After the sections are connected, the horizontal stirrups 9 are sleeved on the outside of the post-inserted steel bars 2 .

[0146] As an example, if the edge of the prefabricated component is a hidden column, the side of the stirrup 6 of the hidden column close to the cast-in-place area 13 is also exposed to the side end of the edge cavity 5.

[0147] As an example, in a non-closed connection, including:

[0148] After the component bodies 1 of two horizontally adjacent prefabricated components are butted together, the edge cavities 5 at the edges of the component bodies 1 are butted together to form a cast-in-place area 13;

[0149] Insert horizontal stirrups 9 into the cast-in-place area 13;

[0150] One or more post-inserted steel bars 2 are vertically arranged in the edge cavity 5 and the cast-in-place area 13 . Each post-inserted steel bar 2 includes at least two sections. After the sections are connected, the horizontal stirrups 9 are sleeved on the outside of the post-inserted steel bars 2 .

[0151] As an example, the edge of the component body 1 is configured with a horizontal stirrup insertion opening 8 leading to the cast-in-place area, and when the horizontal stirrups 9 are inserted, they are inserted from the horizontal stirrup insertion opening 8 .

[0152] As an example, if multiple horizontal stirrups 9 are included, multiple horizontal stirrup insertion openings 8 are set accordingly, and the inner side of the middle part of each horizontal stirrup 9 is connected by a connecting steel bar 15. When inserting the horizontal stirrups 9, each horizontal stirrup 9 is inserted into the cast-in-place area 13 through its own horizontal stirrup insertion opening 8, thereby improving the insertion efficiency.

[0153] As an example, if multiple horizontal stirrups 9 are included, the outer sides of each horizontal stirrup 9 are connected by connecting steel bars 15. When inserting the horizontal stirrups 9, each horizontal stirrup 9 can be inserted from top to bottom into the edge cavity 5 of one of the prefabricated components, and then moved closer to another prefabricated component, so that each horizontal stirrup 9 is located in the middle of the cast-in-place area 13.

[0154] As an example, when connecting two vertically adjacent prefabricated components, the top of the rear-inserted steel bars 2 of the prefabricated component located at the bottom is overlapped, welded or connected with the bottom of the rear-inserted steel bars 2 of the prefabricated component located at the top by mechanical connectors.

[0155] Optionally, the windows 4 between two horizontally adjacent prefabricated components may be staggered so that the later-inserted steel bars 2 are staggered and connected in the height direction.

[0156] Optionally, the height of the connection joint between two adjacent sections of rear-inserted steel bars 2 is adjustable.

[0157] Optionally, the post-inserted steel bar 2 is a steel bar with closed ends (such as a ring 16) or a steel bar with an unclosed free end.

[0158] Optional, combined Figure 27-29 The upper and lower layers of prefabricated components are respectively provided with an upper layer of post-inserted annular reinforcement 21 and a lower layer of post-inserted annular reinforcement 22. The lower layer of post-inserted annular reinforcement 22 extends into the through cavity of the upper layer of prefabricated components to be connected with the upper layer of post-inserted annular reinforcement 21.

[0159] Optional, combined Figure 30-31 The upper annular longitudinal reinforcement 23 and the lower annular longitudinal reinforcement 24 are prefabricated in the component body, and the connection structure includes a post-inserted annular reinforcement 25, the bottom of which is located at the top of the cast-in-place cavity of the lower prefabricated component, and the top of which is located at the top and bottom of the cast-in-place cavity of the upper prefabricated component.

[0160] Optional, combined Figure 32-36 The horizontal steel bars 12 of the component body 1 of the prefabricated component are exposed from the side end of the component body 1. There is a cast-in-place cavity 3 between the front and rear sides of the component body 1. When the upper and lower layers of components are connected, the longitudinal steel bars 18 of the two layers are connected to each other. The side of the prefabricated component is constructed with a water stop groove 26 along the thickness direction of the component body 1.

[0161] It should be understood that the methods and connection structures in the above embodiments correspond to each other, and specific details can be referred to the above embodiments, which will not be repeated here.

[0162] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A connection structure of prefabricated components, characterized in that: The method comprises two prefabricated components connected to each other in a horizontal direction, wherein the prefabricated components include a component body and horizontal reinforcements; The edge of the component body has an edge cavity that runs through from top to bottom, and the connection structure further comprises: a close fitting connection or a non-close fitting connection; The close connection includes: the ends of the horizontal steel bars of the component body are closed structures, and the closed structures are exposed to the side ends of the component body, and after the component bodies of two horizontally adjacent prefabricated components are butted, the edge cavities of the edges of the component bodies are butted to form a cast-in-place area; the cast-in-place areas are vertically provided with one or more post-inserted steel bars, wherein the periphery of the post-inserted steel bars of the cast-in-place areas is provided with horizontal stirrups; The non-close-fit connection includes: if the edge of the prefabricated component is a hidden column, the stirrups of the hidden column are exposed to the edge cavity; there is a gap between the component bodies of two horizontally adjacent prefabricated components, and the gap forms a cast-in-place area; one or more post-inserted steel bars are vertically arranged in the edge cavity and the cast-in-place area, wherein horizontal stirrups are arranged around the post-inserted steel bars in the cast-in-place area; Alternatively, a cast-in-place cavity is constructed at the bottom of the side of the component body, and the side end of the cast-in-place cavity is connected to the side of the component body, and the bottom end is connected to the bottom surface of the component body, so that during on-site casting, concrete can enter from the side of the cast-in-place cavity to fill the cast-in-place cavity.

2. The connection structure of prefabricated components according to claim 1, characterized in that: In the non-close-fit connection, if the outer end of the horizontal reinforcement of the component body is a closed structure and extends from the side end of the component body to the cast-in-place area, the later-inserted reinforcement also passes through the closed structure of the outer end of the horizontal reinforcement.

3. The connection structure of prefabricated components according to claim 1, characterized in that: In the close-fitting connection, if multiple horizontal stirrups are included, the outer sides of each horizontal stirrup are connected by connecting steel bars, so that each horizontal stirrup can be placed together from top to bottom into the edge cavity of one of the prefabricated components, and then moved closer to another prefabricated component, so that each horizontal stirrup is located in the middle of the cast-in-place area.

4. The connection structure of prefabricated components according to claim 1, characterized in that: In the close-fitting connection, the edge of the component body is configured with a horizontal stirrup insertion opening leading to the cast-in-place area for inserting horizontal stirrups.

5. The connection structure of prefabricated components according to claim 4, characterized in that: In the close-fitting connection, if multiple horizontal stirrups are included, multiple horizontal stirrup insertion openings are correspondingly set, and the inner sides of the middle parts of each horizontal stirrup are connected by connecting steel bars so that each horizontal stirrup can be placed into the cast-in-place area through its own horizontal stirrup insertion opening.

6. The connection structure of prefabricated components according to claim 1, characterized in that: The connection structure of two vertically adjacent prefabricated components includes: the top of the rear-inserted steel bars of the prefabricated component located at the bottom is overlapped, welded or connected with the bottom of the rear-inserted steel bars of the prefabricated component located at the top by mechanical connectors.

7. The connection structure of prefabricated components according to claim 1, characterized in that: Each of the post-inserted steel bars comprises at least two sections, and one or more positions on the surface of the component body are further configured with windows communicating with the cavity, so that the connection nodes of two adjacent sections of the post-inserted steel bars can be exposed in the windows.

8. The connection structure of prefabricated components according to claim 7, characterized in that: The window is located at the bottom of the main surface of the component.

9. The connection structure of prefabricated components according to claim 7, characterized in that: The window is located at the bottom of the side edge surface of the component body.

10. The connection structure of prefabricated components according to claim 7, characterized in that: The window is located in the middle, upper middle or lower middle of the surface of the component body.

11. The connection structure of prefabricated components according to claim 10, characterized in that: The windows include a plurality of windows, which are arranged along the length direction of the prefabricated component and staggered in the height direction of the prefabricated component.

12. The connection structure of prefabricated components according to claim 1, characterized in that: The component body is also configured with an exhaust hole communicating with the cast-in-place cavity.

13. The connection structure of prefabricated components according to claim 1, characterized in that: The connection structure also includes a connection structure between upper and lower prefabricated components, wherein the upper and lower prefabricated components are respectively provided with an upper layer of rear-inserted annular steel bars and a lower layer of rear-inserted annular steel bars, and the lower layer of rear-inserted annular steel bars extend into the through cavity of the upper layer of prefabricated components to be connected with the upper layer of rear-inserted annular steel bars.

14. The connection structure of prefabricated components according to claim 1, characterized in that: The connection structure also includes a connection structure between the upper and lower layers of prefabricated components, wherein the annular longitudinal reinforcements of the upper and lower layers of prefabricated components are prefabricated in the component body, and the connection structure includes post-inserted annular reinforcements, the bottom of which is located at the top of the cast-in-place cavity of the lower prefabricated component, and the top of which is located at the top and bottom of the cast-in-place cavity of the upper prefabricated component.

15. The connection structure of prefabricated components according to claim 1, characterized in that: The side of the prefabricated component is configured with a water stop groove along the thickness direction of the component body.

Images