Connecting joint between transverse prefabricated parts and building structure thereof

Abstract

The utility model discloses a connecting node between transverse prefabricated parts and a building structure thereof, and the connecting node comprises a first transverse prefabricated part and a second transverse prefabricated part, the lower section of one transverse end of the first transverse prefabricated part and the lower section of one transverse end of the second transverse prefabricated part are folded to form a bearing part capable of being used for bearing cast-in-place concrete, a concrete cast-in-place area is formed above the bearing part, and external connecting pieces capable of being in transverse butt joint are embedded in the first transverse prefabricated part and the second transverse prefabricated part correspondingly. The butt joint part of the external connecting piece is located above the bearing part, and the external connecting piece of the first transverse prefabricated part and the external connecting piece of the second transverse prefabricated part are connected through a connecting assembly located in the concrete cast-in-place area. According to the connecting node, the step of manually supporting a template is omitted, and the connecting efficiency and the connecting firmness are improved.

Description

Technical Field

[0001] The utility model relates to the connection between transverse prefabricated components, and comprises a connection node between transverse prefabricated components and a building structure thereof. Background Art

[0002] Prefabricated and assembled buildings are one of the development trends in my country's construction field. The characteristic of prefabricated buildings lies in the connection of nodes between prefabricated components. At present, the connection between prefabricated transverse components (such as prefabricated panels) is mostly connected on-site by cast-in-place concrete, including: first, the connection between prefabricated transverse components requires on-site support of formwork for supporting cast-in-place concrete, and second, the external steel bars of one transverse prefabricated component need to be tied and connected on-site with the external steel bars of another transverse prefabricated component (usually, transverse prefabricated components have external steel bars embedded in their main bodies and with external ends when leaving the factory) so that the two transverse prefabricated components can be connected. This process requires on-site formwork and manual tying of external steel bars, so the connection efficiency is not high. In addition, since the connection is made by manually tying external steel bars, the connection firmness is poor. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a connection node between transverse prefabricated components in formwork-free construction.

[0004] In order to solve the above technical problems, the utility model provides a connection node between transverse prefabricated components, which includes a first transverse prefabricated component and a second transverse prefabricated component. The lower section of one transverse end of the first transverse prefabricated component and the lower section of one transverse end of the second transverse prefabricated component are closed to form a supporting portion that can be used to support cast-in-place concrete, and a cast-in-place concrete area is formed above the supporting portion. The first transverse prefabricated component and the second transverse prefabricated component are both pre-embedded with external connecting parts that can be laterally connected. The connecting part of the external connecting parts is located above the supporting part. The external connecting parts of the first transverse prefabricated component and the external connecting parts of the second transverse prefabricated component are connected via a connecting component located in the cast-in-place concrete area.

[0005] Compared with the prior art, the beneficial effects of the utility model are as follows: a supporting part that can be used to support cast-in-place concrete is formed between the two transverse prefabricated components, eliminating the need for manual formwork support steps, improving construction efficiency, and avoiding construction risks caused by supporting formwork; the supporting part is prefabricated first and then closed and spliced, reducing the amount of cast-in-place concrete used at the connection; the external connector of the first transverse prefabricated component and the external connector of the second transverse prefabricated component are connected by a connecting assembly, which improves the connection efficiency and connection firmness; the external connector of the first transverse prefabricated component and the external connector of the second transverse prefabricated component and the connecting assembly are all buried in the cast-in-place concrete of the concrete cast-in-place area, further improving the firmness of the overall connection and reducing the amount of cast-in-place concrete used.

[0006] Preferably, the lateral ends of the supporting portion formed by folding the first transverse prefabricated member and the second transverse prefabricated member are respectively the first end and the second end, and one or more tightening members are embedded in the first end and / or the second end, and the tightening member has a tightening portion exposed at the first end or the second end and embedded in the cast-in-place concrete of the cast-in-place concrete area.

[0007] Preferably, the multiple tightening portions at the first end and the multiple tightening portions at the second end are staggeredly distributed along the longitudinal direction.

[0008] Preferably, a leak-proof belt is provided at the junction of the lower section of the first end and the lower section of the second end;

[0009] And / or, a caulking agent is provided at the joint between the lower section of the first end and the lower section of the second end.

[0010] Preferably, the lower section of the first end and the lower section of the second end both protrude laterally to form a first protrusion, and the two first protrusions are adapted to be spliced ​​with each other to form a supporting portion;

[0011] Alternatively, the lower section of the first end portion and the lower section of the second end portion are connected with a concave-convex structure.

[0012] Preferably, the connecting assembly includes two external nuts that are respectively connected to the external connecting parts of the first transverse prefabricated component and the second transverse prefabricated component, a ball screw with one end screwed to the external nut, a connecting nut that is sleeved on the ball screw and clamped with the ball end of the ball screw, a locking nut that is sleeved on the ball screw and abuts against the connecting nut, and a double-headed screw with both ends respectively screwed to the two connecting nuts.

[0013] Preferably, the first transverse prefabricated component and the second transverse prefabricated component are both embedded with longitudinal steel bars and / or transverse steel bars and / or steel strands;

[0014] And / or, the thickness of the supporting portion is 2 / 17 to 2 / 15 of the thickness of the first transverse prefabricated component or the second transverse prefabricated component.

[0015] Preferably, the connection components and / or the transverse reinforcements and / or the longitudinal reinforcements and / or the steel strands are coated with an anti-corrosion coating.

[0016] Preferably, the cast-in-place concrete grade strength is C40-C80;

[0017] and / or, the component body of the first transverse prefabricated component and / or the second transverse prefabricated component is provided with more than one cavity;

[0018] And / or, the upper section of the first end and / or the second end is laterally convex to form a second convex portion, and the middle section of the first end and / or the second end is concave to form a concave portion;

[0019] And / or, an anti-cracking member for preventing concrete from cracking is embedded in the upper section and / or the lower section of the first transverse prefabricated member and / or the second transverse prefabricated member.

[0020] The utility model also provides a building structure, which comprises the connection node between the above-mentioned transverse prefabricated components.

[0021] The building structure provided by the utility model has the connection node between the transverse prefabricated components constructed without support formwork, and therefore has the same technical effect as the connection node. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural schematic diagram of a connection node between transverse prefabricated components in an embodiment;

[0023] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0024] Figure 3 It is a schematic diagram of the combination of the first transverse prefabricated component and the second transverse prefabricated component with cast-in-place concrete;

[0025] Figure 4 It is a schematic structural diagram of a first transverse prefabricated component and a second transverse prefabricated component;

[0026] Figure 5 is a schematic structural diagram of a first transverse prefabricated component;

[0027] Figure 6 for Figure 5 Enlarged view of middle part B;

[0028] Figure 7 Schematic diagram for connecting external parts to the connection components.

[0029] Reference numerals

[0030] 1. first transverse prefabricated component; 11. first end;

[0031] 2. a second transverse prefabricated component; 21. a second end;

[0032] 3. External parts; 4. Supporting part; 5. Cast-in-place concrete area;

[0033] 6. Connecting assembly; 61. External nut; 62. Ball screw; 63. Connecting nut; 64. Locking nut; 65. Double-head screw;

[0034] 7. Tightening piece; 71. Tightening part;

[0035] 8. longitudinal reinforcement; 81. cavity; 82. second raised portion; 83. recessed portion; 84. anti-cracking member. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the technical solution of the utility model, a detailed description is given below in conjunction with the accompanying drawings and specific embodiments.

[0037] In the embodiments, the terms "first" and "second" are only used for the convenience of description and distinction, and have no limiting effect on the scope of protection.

[0038] In the following embodiments, the direction indicated by the X-axis is the width direction or the length direction of the first transverse prefabricated component 1 and / or the second transverse prefabricated component 2, which is also Figure 1 The Z axis is the direction of the thickness of the first transverse prefabricated component 1 and the second transverse prefabricated component 2. Figure 1 The vertical direction is the direction perpendicular to the plane where the X-axis and the Z-axis are located.

[0039] Embodiment 1

[0040] See also Figure 1 , Figure 2 The present embodiment provides a connection node between transverse prefabricated components, which includes a first transverse prefabricated component 1 and a second transverse prefabricated component 2. The lower section of one transverse end of the first transverse prefabricated component 1 and the lower section of one transverse end of the second transverse prefabricated component 2 are closed to form a supporting portion 4 that can be used to support cast-in-place concrete. A cast-in-place concrete area 5 is formed above the supporting portion 4. The first transverse prefabricated component 1 and the second transverse prefabricated component 2 are both pre-embedded with external connectors 3 that can be laterally docked. The docking position of the external connectors 3 is located above the supporting portion 4. The external connectors 3 of the first transverse prefabricated component 1 and the external connectors 3 of the second transverse prefabricated component 2 are connected via a connecting assembly 6.

[0041] Compared with the prior art, the beneficial effects of this embodiment are: a supporting part 4 that can be used to support cast-in-place concrete is formed between the first transverse prefabricated component 1 and the second transverse prefabricated component 2, which eliminates the need for manual formwork support steps, improves construction efficiency, and avoids construction risks caused by formwork support. The supporting part 4 is prefabricated first and then assembled and spliced, which reduces the amount of cast-in-place concrete used at the connection; the external connector 3 of the first transverse prefabricated component 1 and the external connector 3 of the second transverse prefabricated component 2 are connected by a connecting assembly 6, which improves connection efficiency and connection firmness; the external connector 3 of the first transverse prefabricated component 1 and the external connector 3 of the second transverse prefabricated component 2 and the connecting assembly 6 are all buried in the cast-in-place concrete of the cast-in-place concrete area 5, which further improves the firmness of the overall connection and reduces the amount of cast-in-place concrete used.

[0042] In this embodiment, the width direction of the first transverse prefabricated component 1 and the second transverse prefabricated component 2 is the direction of the X axis, the length direction of the first transverse prefabricated component 1 and the second transverse prefabricated component 2 is the longitudinal direction, and the thickness direction of the first transverse prefabricated component 1 and the second transverse prefabricated component 2 is the direction of the Z axis. As long as the external connection 3 can meet the transverse external connection, its setting form, length, structure, material, quantity, etc. are not strictly limited, and can be determined according to specific needs. Preferably, the external connection 3 can be a through-length steel bar (i.e., a force bar) that passes through the first transverse prefabricated component 1 or the second transverse prefabricated component 2, or a non-through-length steel bar, or an anchoring steel bar. Preferably, the number of the external connection 3 of the first transverse prefabricated component 1 and the second transverse prefabricated component 2 is more than two, and more preferably, more than two external connection 3 of the first transverse prefabricated component 1 and more than two external connection 3 of the second transverse prefabricated component 2 are distributed along the longitudinal direction. The structure and material of the connecting component 6 are not strictly limited, and can be determined according to specific actual needs.

[0043] Furthermore, the first transverse prefabricated component 1 and the second transverse prefabricated component 2 are combined to form the transverse ends of the supporting portion 4, which are the first end 11 and the second end 21. Figure 3 , Figure 4 , Figure 5 , Figure 6 In one embodiment, one or more tightening members 7 are embedded in the first end 11 and / or the second end 21 , and the tightening member 7 has a tightening portion 71 exposed at the first end 11 or the second end 21 and embedded in the cast-in-place concrete of the cast-in-place concrete area 5 .

[0044] Specifically, the function of the tightening member 7 is to prevent the first transverse prefabricated component 1 and the second transverse prefabricated component 2 from shifting relative to each other (especially vertically shifting) at the connection point under the action of external force. In this embodiment, the tightening member 7 at the first end 11 and the second end 21 is buried in the cast-in-place concrete of the cast-in-place concrete area 5, so that the first transverse prefabricated component 1, the second transverse prefabricated component 2 and the cast-in-place concrete are integrated, thereby preventing the first transverse prefabricated component 1 and the second transverse prefabricated component 2 from shifting relative to each other and tightening the two components relative to each other. The construction, structure, material, etc. of the tightening member 7 are not strictly limited and can be determined according to specific needs. Preferably, see Figure 5 , Figure 6 The tightening member 7 is a steel mesh that can be folded to any position. After the first transverse prefabricated component 1 and the second transverse prefabricated component 2 are prefabricated and before construction, the steel mesh can be folded for transportation and stacking. During construction, the exposed and folded tightening portion 71 (foldable portion) of the steel mesh is unfolded and folded again according to actual needs, and then cast-in-place concrete is poured after folding.

[0045] For further information, see Figure 3 , Figure 4 , the multiple tightening parts 71 of the first end 11 and the multiple tightening parts 71 of the second end 21 are staggered in the longitudinal direction. Specifically, the first end 11 and the second end 21 are both provided with multiple tightening members 7 distributed in the longitudinal direction, and the multiple tightening parts 71 of the first end 11 and the multiple tightening parts 71 of the second end 21 are staggered in the longitudinal direction. It should be pointed out that in this embodiment, the tightening members 7 of the first transverse prefabricated component 1 and the tightening members 7 of the second transverse prefabricated component 2 will not interfere with each other in the longitudinal direction, because the two are only staggered in the longitudinal direction.

[0046] Furthermore, a leak-proof belt is provided at the joint of the lower section of the first end 11 and the lower section of the second end 21 to prevent the concrete above the joint from leaking out from the joint at the joint. The structure, construction, material, etc. of the leak-proof belt are not limited. Preferably, the leak-proof belt is an adhesive strip or an adhesive tape.

[0047] Furthermore, a caulking agent is provided at the joint between the lower section of the first end 11 and the lower section of the second end 21 to prevent the concrete above the joint from leaking out from the joint at the joint. The material of the caulking agent is not limited. Preferably, the caulking agent is silicone sealant, polyurethane caulking agent, acrylic caulking agent, or epoxy resin caulking agent.

[0048] For further information, see Figure 1 , Figure 2 , Figure 3 The lower section of the first end 11 and the lower section of the second end 21 together form the supporting portion 4. The form of the supporting portion 4 formed by the two together is not limited and can be determined according to the specific situation. It can be that both have a protruding section and the two protruding sections are combined and spliced ​​to form the supporting portion 4, or one has a protruding section and the other has an indentation, and the supporting portion 4 is only formed by the protruding section. Preferably, see Figure 1 , Figure 2 The lower section of the first end 11 and the lower section of the second end 21 both protrude laterally to form a first protrusion, and the two first protrusions are adapted to be spliced ​​with each other to form a supporting portion 4.

[0049] Furthermore, the lower section of the first end 11 and the lower section of the second end 21 are connected by a concave-convex structure, and the two are staggered in the vertical direction to prevent the cast-in-place concrete above the two from leaking out from the joint between the two.

[0050] For further information, see Figure 7The connection assembly 6 includes two external nuts 61 of the external connection parts 3 respectively connecting the first transverse prefabricated component 1 and the second transverse prefabricated component 2, a ball screw 62 with one end screwed to the external nut 61, a connecting nut 63 sleeved on the ball screw 62 and clamped with the ball end of the ball screw 62, a locking nut 64 sleeved on the ball screw 62 and abutting against the connecting nut 63, and a double-headed screw 65 with two ends respectively screwed to the two connecting nuts 63.

[0051] For further information, see Figure 5 , Figure 6 The first transverse prefabricated component 1 and the second transverse prefabricated component 2 are both provided with longitudinal reinforcement 8 and / or transverse reinforcement and / or steel strands.

[0052] Furthermore, the thickness of the supporting portion 4 is 2 / 17 to 2 / 15 of the thickness of the first transverse prefabricated component 1 or the second transverse prefabricated component 2, so as to ensure that the supporting portion 4 can bear the weight of the cast-in-place concrete above it while ensuring that there is a sufficient amount of cast-in-place concrete at the connection, thereby ensuring the firmness of the connection.

[0053] Furthermore, the connection assembly 6 and / or the transverse reinforcement and / or the longitudinal reinforcement 8 and / or the steel strands are coated with an anti-corrosion coating.

[0054] Furthermore, the cast-in-place concrete grade strength is C40-C80.

[0055] Furthermore, the component body of the first transverse prefabricated component 1 and / or the second transverse prefabricated component 2 is provided with one or more cavities 81 to reduce the amount of concrete used and the weight of the first transverse prefabricated component 1 and / or the second transverse prefabricated component 2 .

[0056] For further information, see Figure 1 , Figure 2 , Figure 3 The upper section of the first end 11 and / or the second end 21 is laterally convex to form a second protrusion 82, and the middle section of the first end 11 and / or the second end 21 is indented to form a recessed portion 83, so as to prevent the cast-in-place concrete in the cast-in-place concrete area 5 between the first transverse prefabricated component 1 and / or the second transverse prefabricated component 2 from being squeezed out vertically upward when the first transverse prefabricated component 1 and / or the second transverse prefabricated component 2 is subjected to a vertical force.

[0057] For further information, see Figure 5 , Figure 6 The upper section and / or lower section of the first transverse prefabricated component 1 and / or the second transverse prefabricated component are embedded with anti-cracking parts 84 to prevent concrete cracking. The construction, structure and material of the anti-cracking parts 84 are not strictly limited, as long as they can enhance the overall bearing capacity of the upper section and / or the lower section of the first transverse prefabricated component 1 and / or the second transverse prefabricated component 2 to prevent local cracking. Preferably, the anti-cracking parts 84 are steel mesh.

[0058] Embodiment 2

[0059] The same parts in this embodiment as those in the first embodiment are given the same figure marks, and the same text descriptions are omitted.

[0060] Compared with the first embodiment, the building structure provided in this embodiment has the following different structural designs:

[0061] A building structure in this embodiment includes a connection node between transverse prefabricated components in embodiment 1. Since a building structure in the embodiment has a connection node between transverse prefabricated components in embodiment 1, it has the same technical effect as the connection node in embodiment 1. Specifically, the building structure in this embodiment is not strictly limited, and can be a commercial building, a residential building, an industrial building, an engineering building, an above-ground building, an underground building, an underwater building, etc.

[0062] The above are only preferred embodiments of the present invention. The protection scope of the present invention shall be based on the scope defined by the claims. Several improvements and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall also be regarded as the protection scope of the present invention.

Claims

1. A connection node between transverse prefabricated components, characterized in that: The invention comprises a first transverse prefabricated component and a second transverse prefabricated component, wherein the lower section of one transverse end of the first transverse prefabricated component and the lower section of one transverse end of the second transverse prefabricated component are combined to form a supporting portion that can be used to support cast-in-place concrete, and a cast-in-place concrete area is formed above the supporting portion. The first transverse prefabricated component and the second transverse prefabricated component are both pre-embedded with external connecting parts that can be laterally connected, and the connecting parts of the external connecting parts are located above the supporting portion. The external connecting parts of the first transverse prefabricated component and the external connecting parts of the second transverse prefabricated component are connected via a connecting component located in the cast-in-place concrete area.

2. The connection node between transverse prefabricated components according to claim 1, characterized in that: The first transverse prefabricated member and the second transverse prefabricated member are combined to form the transverse ends of the supporting portion, respectively, and the first end and / or the second end are pre-embedded with one or more tightening members, and the tightening members have a tightening portion exposed at the first end or the second end and embedded in the cast-in-place concrete of the cast-in-place concrete area.

3. The connection node between transverse prefabricated components according to claim 2, characterized in that: The multiple tightening portions at the first end and the multiple tightening portions at the second end are staggeredly distributed along the longitudinal direction.

4. The connection node between transverse prefabricated components according to claim 2, characterized in that: A leak-proof belt is provided at the junction of the lower section of the first end and the lower section of the second end; And / or, a caulking agent is provided at the joint between the lower section of the first end portion and the lower section of the second end portion.

5. The connection node between transverse prefabricated components according to claim 2, characterized in that: The lower section of the first end and the lower section of the second end both protrude transversely to form a first protrusion, and the two first protrusions are adapted to be spliced ​​with each other to form the supporting portion; Alternatively, the lower section of the first end portion and the lower section of the second end portion are connected with a concave-convex structure.

6. The connection node between transverse prefabricated components according to claim 1, characterized in that: The connecting assembly includes two external nuts that are respectively connected to the external connecting parts of the first transverse prefabricated component and the second transverse prefabricated component, a ball screw with one end screwed to the external nut, a connecting nut that is sleeved on the ball screw and clamped with the ball end of the ball screw, a locking nut that is sleeved on the ball screw and abuts against the connecting nut, and a double-headed screw with two ends respectively screwed to the two connecting nuts.

7. The connection node between transverse prefabricated components according to claim 1, characterized in that: The first transverse prefabricated component and the second transverse prefabricated component are both internally provided with longitudinal steel bars and / or transverse steel bars and / or steel strands; And / or, the thickness of the supporting portion is 2 / 17 to 2 / 15 of the thickness of the first transverse prefabricated component or the second transverse prefabricated component.

8. The connection node between transverse prefabricated components according to claim 7, characterized in that: The connection assembly and / or the transverse steel bars and / or the longitudinal steel bars and / or the steel strands are coated with anti-corrosion paint.

9. The connection node between transverse prefabricated components according to claim 2, characterized in that: The cast-in-place concrete grade strength is C40-C80; and / or, the component body of the first transverse prefabricated component and / or the second transverse prefabricated component is provided with more than one cavity; And / or, the upper section of the first end and / or the second end is laterally convex to form a second convex portion, and the middle section of the first end and / or the second end is concave to form a concave portion; And / or, an anti-cracking member for preventing concrete from cracking is embedded in the upper section and / or the lower section of the first transverse prefabricated member and / or the second transverse prefabricated member.

10. A building structure, characterized in that: The invention comprises a connection node between transverse prefabricated components as described in any one of claims 1 to 9.

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