Connecting structure of prefabricated parts

Abstract

The utility model discloses a connecting structure of prefabricated parts, which comprises two horizontally adjacent prefabricated parts, each prefabricated part comprises a part main body and a horizontal reinforcing steel bar, and the front side and the rear side of the side end of each part main body in the thickness direction respectively extend along the length direction of the part main body to form wing limbs. Therefore, an edge cavity penetrating from top to bottom is formed between the two side wing limbs, and after two horizontally adjacent prefabricated parts are in butt joint, the edge cavities of the two prefabricated parts are in butt joint to form a cast-in-place area; one side of the two side wing limbs is relatively long, and the other side of the two side wing limbs is relatively short, so that the relatively long side wing limb forms dense splicing connection, and the relatively short side wing limb forms non-dense splicing connection, or one side of the front and rear sides of the side end of the component main body in the thickness direction extends along the length direction of the component main body to form a wing limb, and the other side of the component main body extends along the length direction of the component main body. After two horizontally adjacent prefabricated parts are in butt joint, the sides with the wing limbs form dense splicing connection, and the sides without the wing limbs form non-dense splicing connection.

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] Currently, a prefabricated component has a cast-in-place cavity inside. After the prefabricated components are transported to the construction site, adjacent prefabricated components are horizontally connected to achieve 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 connection node strength, easy cracking, and poor integrity. In addition, there are also problems such as low connection efficiency and low degree of template standardization.

[0004] In view of this, the present invention is proposed. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide a connection structure for prefabricated components to at least solve some of the technical problems existing in the related art.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, a connection structure of prefabricated components is provided, comprising two horizontally adjacent prefabricated components, wherein the prefabricated components comprise a component body and horizontal reinforcement;

[0008] The front and rear sides of the side ends of the component body in the thickness direction respectively extend along the length direction of the component body to form wing limbs, thereby forming an edge cavity that runs through from top to bottom between the two wing limbs, so that after two horizontally adjacent prefabricated components are butted together, the edge cavities of each other are butted together to form a cast-in-place area; one side of the wing limbs is longer and the other side is shorter, so that when the side ends of the two adjacent component bodies are connected to each other, the longer wing limb forms a close-fitting connection, and the shorter wing limb forms a non-close-fitting connection, or,

[0009] Among the front and rear sides of the side ends of the component body in the thickness direction, one side extends along the length direction of the component body to form a wing limb, so that after two horizontally adjacent prefabricated components are butt-jointed, the side with the wing limb forms a close-joined connection, and the side without the wing limb forms a non-close-joined connection, thereby forming a cast-in-place area with a close-joined one side and a non-close-joined other side.

[0010] Furthermore, vertical steel bars are provided in the cast-in-place area.

[0011] Furthermore, horizontal stirrups are provided in the cast-in-place area, and the vertical steel bars include first vertical steel bars provided inside the horizontal stirrups.

[0012] Furthermore, the end of the horizontal steel bars of the component main body is a closed structure, and this closed structure is exposed at the side end of the component main body, flush with the longer wing limbs or, in the case of only one wing limb, flush with the side having the wing limb.

[0013] Furthermore, the vertical steel bars further include second vertical steel bars arranged inside the closed structure of the horizontal steel bars.

[0014] Furthermore, the two horizontally adjacent precast components are two horizontally adjacent precast components in a straight joint, or,

[0015] the two horizontally adjacent precast components are two horizontally adjacent precast components in an L-shaped joint, where one precast component is linear and the other precast component has an L-shaped corner, or,

[0016] the two horizontally adjacent precast components are two horizontally adjacent precast components in a T-shaped joint, where one precast component is T-shaped, that is, on the basis of a linear precast component, a T-shaped connecting part vertically extends in the middle of the component main body, and long and short wing limb structures are arranged at the side end of the T-shaped connecting part; the other precast component is linear, and after they are butted, the T-shaped joint is formed, or,

[0017] the two horizontally adjacent precast components are two horizontally adjacent precast components in a T-shaped joint, where one precast component is linear and is recessed along the thickness direction in the middle to form a cavity for butting with the side end of the other precast component; the other precast component is linear, and after they are butted, the T-shaped joint is formed.

[0018] Furthermore, a first formwork for closing the cast-in-place area from the non-tightly assembled side is provided on the non-tightly assembled side of the cast-in-place area. If the distance between the two wing limbs on the tightly assembled side of the cast-in-place area is not zero, then a second formwork for closing the cast-in-place area from the tightly assembled side is provided on the tightly assembled side.

[0019] Furthermore, a reinforcement tooling for reinforcing the first formwork and the second formwork is further included.

[0020] Furthermore, the precast component is a precast component without thermal insulation or a precast component with a thermal insulation layer and an outer leaf, where the length of the thermal insulation layer and the outer leaf is the same as the side of the precast component main body having the longer wing limb or, in the case of only one wing limb, is flush with the side having the wing limb.

[0021] The connection structure of precast components provided by the present utility model is provided with one long and one short side wing limbs on the side of the precast component, and is connected in a way that the long wing limb side is closely joined and the short wing limb side is not closely joined. The thickness of the post-cast concrete at the splicing part of the precast wall panel is increased on the non-closely joined side to prevent cracking at the splicing part. Moreover, due to the large space, it is convenient to install horizontal connecting bars. The closely joined side helps to limit the relative distance between two horizontally adjacent precast components, improve the connection efficiency, and since the relative distance is relatively fixed, it helps to realize the standardized design of the formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of a connection structure of a precast component provided by an embodiment of the present utility model (after installing the formwork and pouring);

[0023] Figure 2 For Figure 1 Enlarged structural schematic diagram at the connection node;

[0024] Figure 3 For Figure 1 Top-down enlarged structural schematic diagram at the connection node;

[0025] Figure 4 Schematic diagram of a connection structure of a precast component provided by an embodiment of the present utility model (when the formwork is installed but not poured);

[0026] Figure 5 For Figure 4 Enlarged structural schematic diagram at the connection node;

[0027] Figure 6 For Figure 4 Top-down enlarged structural schematic diagram at the connection node;

[0028] Figure 7 Enlarged structural schematic diagram at the connection node of a connection structure of a precast component provided by another embodiment of the present utility model;

[0029] Figure 8 For Figure 7 Top-down structural schematic diagram;

[0030] Figure 9 Schematic diagram of a connection structure of a precast component provided by another embodiment of the present utility model;

[0031] Figure 10 For Figure 9 Top-down enlarged structural schematic diagram at the connection node;

[0032] Figure 11 Schematic diagram of a connection structure of a precast component provided by another embodiment of the present utility model (L corner);

[0033] Figure 12 is Figure 11 The enlarged top view structure diagram at the connection node;

[0034] Figure 13 The schematic diagram of a precast member connection structure (T-shaped) provided by another embodiment of the present utility model;

[0035] Figure 14 is Figure 13 The enlarged top view structure diagram at the connection node;

[0036] Figure 15 The schematic diagram of a precast member connection structure (T-shaped) provided by another embodiment of the present utility model;

[0037] Figure 16 is Figure 15 The enlarged top view structure diagram at the connection node;

[0038] Figure 17 The top view schematic diagram of a precast member connection structure provided by another embodiment of the present utility model;

[0039] Figure 18 The top view schematic diagram of a precast member connection structure provided by another embodiment of the present utility model;

[0040] In the figure:

[0041] 1 - Member main body; 2 - Horizontal steel bar; 3 - Edge cavity; 4 - Cast-in-place area; 5 - Long wing limb; 6 - Short wing limb; 7 - First vertical steel bar; 8 - Second vertical steel bar; 9 - Horizontal stirrup; 10 - First formwork; 11 - Second formwork; 12 - Horizontal reinforcement; 13 - Bolt; 14 - Thermal insulation layer; 15 - Outer leaf. Specific implementation manners

[0042] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0043] A connection structure of a precast member includes two horizontally adjacent precast members. The precast members include a member main body 1 and horizontal steel bars 2. The front and rear sides of the side end of the member main body 1 extend along the length direction to respectively form two wing limbs. An edge cavity 3 that penetrates from top to bottom is formed between the two wing limbs. After the two horizontally adjacent precast members are butted, the edge cavities 3 of each other are butted to form a cast-in-place area 4.

[0044] Among the two side wing limbs, one is longer, called the long wing limb 5, and the other is shorter, called the short wing limb 6. When two adjacent precast components are connected, the long wing limbs 5 are butted to form a closely joined connection with a relatively narrow spacing, and a non-closely joined connection with a relatively wide spacing is formed between the short wing limbs 6. On one side of the non-closely joined connection, due to the larger operating space, it is convenient to place horizontal connecting steel bars, and the cast-in-place concrete part is more than that on the closely joined side, which helps to prevent cracking at the joint and improve the connection strength of the connection node. The closely joined connection on the other side limits the spacing between the two precast components, which helps to realize the standardized design of the formwork.

[0045] Alternatively, in some embodiments, wing limbs are provided only on one side, that is, only the wing limbs on one side are the long wing limbs 5, and the length of the short wing limbs on the other side is zero.

[0046] In some embodiments, at least one row of vertical steel bars is arranged along the thickness direction of the component main body 1 in the cast-in-place area 4. In this embodiment, by way of example, it includes one row of vertical steel bars, or two rows, and of course, it can also be more rows, and the specific quantity is not limited.

[0047] In some embodiments, the end of the horizontal steel bar 2 of the component main body 1 is a closed structure, and this closed structure is exposed at the side end of the component main body 1, and specifically, it can be flush with one end of the long wing limb 5. The horizontal steel bar 2 with a closed structure enables the end of the horizontal steel bar 2 to form a circular anchorage with the cast-in-place concrete, making the strength of the cast-in-place node connection higher after connection.

[0048] In some embodiments, the vertical steel bars include a first vertical steel bar 7 and a second vertical steel bar 8. A horizontal stirrup 9 is arranged outside the first vertical steel bar 7, and the second vertical steel bar 8 is arranged inside the closed structure at the side end of the horizontal steel bar 2 precast in the component main body 1.

[0049] The connection structure of the precast component provided by the embodiment of the present invention can be used for the straight connection node, L-angle connection node or T-shaped wall connection node of the precast component. Specifically:

[0050] In some embodiments, the two horizontally adjacent precast components are two horizontally adjacent precast components in the straight node.

[0051] In some other embodiments, the two horizontally adjacent precast components are two horizontally adjacent precast components in the L-angle node, where one precast component is linear and the other precast component has an L-angle, or,

[0052] In some other embodiments, the two horizontally adjacent precast components are two horizontally adjacent precast components in a T-shaped joint. One of the precast components is in a T shape, that is, on the basis of a linear precast component, a T-shaped connecting part vertically extends from the middle of the component body 1, and wing limbs with one long and one short are formed at the side ends of the T-shaped connecting part; the other precast component is in a linear shape. After the two are butted, the T-shaped joint is formed. Or,

[0053] The two horizontally adjacent precast components are two horizontally adjacent precast components in a T-shaped joint. One of the precast components is in a linear shape and is recessed along the thickness direction in the middle to form a cavity for butting against the side end of the other precast component; the other precast component is in a linear shape. After the two are butted, the T-shaped joint is formed.

[0054] In some embodiments, a first formwork 10 for closing the cast-in-place area 4 from the non-tightly butted side is provided on the non-tightly butted side of the cast-in-place area, and a second formwork 11 for closing the cast-in-place area 4 from the tightly butted side is provided on the tightly butted side.

[0055] Furthermore, a reinforcement tooling for reinforcing the first formwork 10 and the second formwork 11 is also included. The reinforcement tooling can adopt various forms. For example, it can be multiple horizontal reinforcement ribs 12 provided on the surface of the first formwork and fixed to one side of the second formwork through bolts 13.

[0056] The precast component can be a precast component without thermal insulation, or a precast component with a thermal insulation layer 14 and an outer leaf 15. Wherein, if it is a precast component with thermal insulation, the lengths of the thermal insulation layer 14 and the outer leaf 15 are the same as the side of the precast component body with the longer wing limb 5, that is, the side ends of the thermal insulation layer 14 and the outer leaf 15 are also tightly butted.

[0057] The present invention also provides a connection method for precast components, which is used to connect and realize the connection structure of the above-mentioned precast components. The connection method includes:

[0058] Butt two horizontally adjacent precast components so that the edge cavities at their side ends are butted to form a cast-in-place area with one side tightly butted and the other side non-tightly butted;

[0059] Install horizontal connecting bars for connecting adjacent two precast components and install vertical steel bars in the cast-in-place area;

[0060] Install formwork for closing the cast-in-place area;

[0061] Pour concrete into the cast-in-place area.

[0062] In this method, the specific connection structure can refer to the introduction in the above embodiments and will not be described repeatedly here.

[0063] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A connecting structure for precast components, characterized in that, It includes two horizontally adjacent precast components, and the precast components include component bodies and horizontal steel bars; On the front and back sides of the side end of the component body in the thickness direction, wing limbs extend along the length direction of the component body respectively, so as to form a vertically penetrating edge cavity between the two wing limbs on both sides. After the two horizontally adjacent precast components are butted, the edge cavities of each other are butted to form a cast-in-place area; one of the two wing limbs on both sides is longer and the other is shorter. When the side ends of two adjacent component bodies are connected to each other, the longer wing limb forms a close-fitting connection, and the shorter wing limb forms a non-close-fitting connection, or, Among the front and back sides of the side end of the component body in the thickness direction, one side extends along the length direction of the component body to form a wing limb. After the two horizontally adjacent precast components are butted, the side with the wing limb forms a close-fitting connection, and the side without the wing limb forms a non-close-fitting connection, thereby constituting a cast-in-place area with one side being close-fitting and the other side being non-close-fitting.

2. The connecting structure of the precast component according to claim 1, characterized in that, Vertical steel bars are provided in the cast-in-place area.

3. The connection structure of the precast member according to claim 2, characterized in that, Horizontal stirrups are also provided in the cast-in-place area, and the vertical steel bars include first vertical steel bars arranged inside the horizontal stirrups.

4. The connecting structure of the prefabricated component according to claim 2, characterized in that, The end of the horizontal steel bar of the component body is a closed structure, and this closed structure is exposed at the side end of the component body, flush with the longer wing limb or, in the case of only one wing limb, flush with the side with the wing limb.

5. The connection structure of the precast member according to claim 2, wherein The side end of the horizontal steel bar extends out from the side end of the component body of the shorter wing limb or the side without the wing limb, so that the extended part is exposed at the side of the shorter wing limb or the side without the wing limb.

6. The connecting structure of the prefabricated component according to claim 4, characterized in that, The vertical steel bars also include second vertical steel bars arranged inside the closed structure of the horizontal steel bar.

7. The connecting structure of the prefabricated component according to claim 1, characterized in that, The two horizontally adjacent precast components are two horizontally adjacent precast components in a straight node, or, The two horizontally adjacent precast components are two horizontally adjacent precast components in an L-shaped corner node, one of the precast components is linear, and the other precast component has an L-shaped corner, or, The two horizontally adjacent precast components are two horizontally adjacent precast components in a T-shaped node, one of the precast components is T-shaped, that is, on the basis of a linear precast component, a T-shaped connecting part vertically extends in the middle of the component body, and wing limbs of one long and one short are structured at the side end of the T-shaped connecting part; the other precast component is linear. After the two are butted, the T-shaped node is formed, or, The two horizontally adjacent precast components are two horizontally adjacent precast components in a T-shaped node, one of the precast components is linear and is recessed along the thickness direction in the middle to form a cavity for butting with the side end of the other precast component; the other precast component is linear. After the two are butted, the T-shaped node is formed.

8. The connecting structure of the prefabricated component according to claim 1, characterized in that A first formwork for closing the cast-in-place area from the non-close-fitting side is provided on the non-close-fitting side of the cast-in-place area, and a second formwork for closing the cast-in-place area from the close-fitting side is provided on the close-fitting side.

9. The connecting structure of the precast member according to claim 8, characterized in that, It also includes a reinforcement tooling for reinforcing the first formwork and the second formwork.

10. The connection structure of the precast component according to claim 1, characterized in that, The precast member is a precast member without thermal insulation, or a precast member with a thermal insulation layer and an outer leaf, wherein the lengths of the thermal insulation layer and the outer leaf are the same as the side of the precast member body with the longer wing limb, or flush with the side with the wing limb in the case of only one wing limb.

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