Prefabricated concrete beam-column joint and construction method

Abstract

The application provides an assembled concrete beam-column joint and a construction method. The assembled concrete beam-column joint comprises a stand column and a beam body assembly. The beam body assembly comprises a beam body, a connecting component and a pulling component. The beam bodies are arranged in pairs. Two beam bodies are spaced apart along the length direction of the beam bodies and are located at the top of the stand column. The interior of the beam body has a channel. The top surface of the beam body has a top hole which is in communication with the channel. The end surface of the beam body has an end hole which is in communication with the channel. The connecting component extends along the length direction of the beam body. The two ends of the connecting component are located in the channels of the adjacent two beam bodies. The pulling component is located in the channel. One end of the pulling component is connected to the connecting component, and the other end of the pulling component extends out of the top hole. According to the assembled concrete beam-column joint, the connecting component and the pulling component are arranged in cooperation. The connecting component can be moved into the channels of the adjacent two beam bodies, so that the two beam bodies are assembled and connected, the operation is easy, and the assembly efficiency is improved.

Description

Technical Field

[0001] This application relates generally to the technical field of prefabricated buildings, and more specifically to a prefabricated concrete beam-column joint and construction method. Background Technology

[0002] Prefabricated construction involves manufacturing building components and accessories, such as floor slabs, wall panels, stairs, and balconies, in a factory, and then assembling them into a complete building using reliable connection methods in the production workshop or on the construction site. Prefabricated construction offers numerous advantages, including controllable quality, high construction efficiency, and environmental friendliness. Concrete building modules, in particular, are favored by many owners due to their superior fire resistance, sound insulation, and heat insulation properties. Existing concrete beam-column joints are constructed by overlapping pre-embedded steel reinforcement components on-site before pouring concrete. In concrete frame structures, the steel reinforcement in the beam-column joint area needs to be connected and anchored on-site after the components are installed, before concrete pouring is carried out in the beam-column joint area and the composite beam section. Current construction methods involve a significant amount of wet work on-site. Furthermore, due to the large number of pre-embedded steel reinforcements in the components and the typically narrow internal space of the joints, the steel reinforcement needs to be bent or staggered to avoid collisions. This results in a complex steel reinforcement layout, making the work difficult, time-consuming, and labor-intensive, significantly slowing down the construction progress.

[0003] Therefore, there is a need to provide a prefabricated concrete beam-column joint and construction method to at least partially solve the above problems. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, a first aspect of this application provides a prefabricated concrete beam-column joint, the prefabricated concrete beam-column joint comprising a column and a beam assembly, the beam assembly comprising:

[0006] The beams are arranged in pairs, with the two beams spaced apart along their own length and both located at the top of the column. The beams have a channel inside, a top hole communicating with the channel on the top surface of the beams, and an end hole communicating with the channel on the end face of the beams.

[0007] A connecting member extending along the length of the beam, with its two ends respectively located within the channels of two adjacent beams; and

[0008] A traction member is located within the channel, with one end of the traction member connected to the connecting member and the other end extending out of the top hole.

[0009] Optionally, it includes at least two sets of the beam components, with the length directions of the beam components of different sets intersecting each other.

[0010] Optionally, the channel includes:

[0011] The first connecting segment extends along the length direction of the beam;

[0012] The second connecting segment extends vertically;

[0013] The transition segment is connected to both the first connected segment and the second connected segment, and the transition segment is constructed in an arc shape.

[0014] Optionally, a connecting pipe is also provided in the channel of the beam, and the outer surface of the connecting pipe has a protrusion and / or a recess that are adapted to the inner wall of the channel to improve the adhesion between the connecting pipe and the inner wall of the channel.

[0015] Optionally, a casting cavity is formed between the top surface of the column and the beam assembly, and the prefabricated concrete beam-column joint further includes a connecting member, which fills the casting cavity to establish a connection between the column and the beam assembly.

[0016] Optionally, the prefabricated concrete beam-column joint further includes a first reinforcing member, which extends vertically and is connected to the column, and the first reinforcing member protrudes upward from the connecting member.

[0017] Optionally, the beam assembly further includes beam reinforcement bars that are connected to the beam and protrude upward from the beam.

[0018] Optionally, the portion of the beam reinforcement protruding upwards from the beam body is configured as a U-shape with the opening facing downwards; the beam assembly further includes a second reinforcing member, which extends along the length of the beam body and is located between the beam reinforcement and the top surface of the beam body.

[0019] The second aspect of this application provides a construction method for constructing the prefabricated concrete beam-column joint described in the first aspect of this application. The prefabricated concrete beam-column joint includes a beam, a column, a traction component, and a connecting component. The construction method includes:

[0020] Manufacture the beam and the column;

[0021] The column is hoisted to the designated position.

[0022] Optionally, it also includes:

[0023] One end of the traction member is connected to the connecting member, and the end of the connecting member connected to the traction member is inserted into the channel of one of the beams, such that the traction member extends out from the top hole of the beam.

[0024] The beam with the connecting component is hoisted to the top of the column, and another beam is hoisted to the top of the column. The position of the beams is adjusted so that the two beams are spaced apart and aligned with each other along their own length.

[0025] Optionally, it also includes:

[0026] The traction member is inserted into the channel of one of the beams, such that both ends of the traction member extend out from the top hole and the end hole of the beam, respectively.

[0027] Connect one end of the traction member extending from the end hole to the connecting member, and pull the traction member so that the connecting member portion extends into the channel of the beam;

[0028] The beam with the connecting component is hoisted to the top of the column, and another beam is hoisted to the top of the column. The position of the beams is adjusted so that the two beams are spaced apart and aligned with each other along their own length.

[0029] Optionally, it also includes:

[0030] Another traction member is inserted into the channel of the beam that is not connected to the connecting member, and both ends of the traction member extend from the top hole and the end hole of the beam, respectively. The part of the traction member extending from the end hole is connected to the connecting member. The part of the traction member extending from the top hole is pulled so that the connecting member enters the channel of the beam.

[0031] Continue pulling the traction components at both ends of the connecting component so that the lengths of both ends of the connecting component extending into the two beams are equal.

[0032] Optionally, it also includes:

[0033] The end of the traction member extending from the top hole is bound to the beam.

[0034] Concrete is poured into the channel through the top hole;

[0035] Concrete is poured into the casting cavity to achieve the connection and formation of the beam and the column.

[0036] According to the prefabricated concrete beam-column joint of this application, by setting mutually cooperating connecting components and traction components, the connecting components can be moved into the channel of two adjacent beams, so that the two beams can be assembled and connected, which is easy to operate and improves assembly efficiency. Attached Figure Description

[0037] The following drawings, illustrating embodiments of this application, are incorporated herein by reference and are used to understand this application. The drawings illustrate embodiments of this application and their descriptions, serving to explain the principles of this application. In the drawings,

[0038] Figure 1 This is a schematic diagram of a prefabricated concrete beam-column joint with a pouring cavity according to a preferred embodiment of this application.

[0039] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0040] Figure 3 This is a structural schematic diagram of a prefabricated concrete beam-column joint without cast-in-place connecting components according to a preferred embodiment of this application;

[0041] Figure 4 This is a structural schematic diagram of a precast concrete beam-column joint with connecting members cast according to a preferred embodiment of this application; and

[0042] Figure 5 for Figure 4 A magnified structural diagram at point B in the middle.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1. Beam-column joint 1a: Casting cavity

[0045] 10 Beam assembly 11 Beam

[0046] 11a Top hole 11b End hole

[0047] 12 Connecting components 13 Traction components

[0048] 14 Connecting pipe 15 First reinforcing member

[0049] 16 Second strengthening member 17 Beam surface reinforcement

[0050] 18 Connecting components 20 Columns

[0051] 111 Channel 111a First Connecting Segment

[0052] 111b Second connected segment; 111c Transition segment Detailed Implementation

[0053] In the following description, numerous specific details are set forth to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that embodiments of this application may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this application.

[0054] To fully understand the embodiments of this application, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this application is not limited to the specific details familiar to those skilled in the art.

[0055] It should be understood that the terminology used herein is intended only to describe particular embodiments and is not intended to limit the scope of this application. The singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0056] The ordinal numbers such as "first" and "second" used in this application are merely identifiers and have no other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of a "second component," and the term "second component" does not imply the existence of a "first component." It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and similar expressions used in this application are for illustrative purposes only and are not intended to be limiting.

[0057] The specific embodiments of this application will be described in more detail below with reference to the accompanying drawings, which illustrate representative embodiments of this application and are not intended to limit this application.

[0058] This application provides a prefabricated concrete beam-column joint 1. Please refer to [link / reference]. Figures 1 to 5The prefabricated concrete beam-column joint 1 may include a column 20 and a beam assembly 10. The beam assembly 10 includes beams 11, connecting members 12, and traction members 13. The beams 11 are arranged in pairs, spaced apart along their length and located on top of the column 20. The interior of each beam 11 has a channel 111, the top surface of each beam 11 has a top hole 11a communicating with the channel 111, and the end face of each beam 11 has an end hole 11b communicating with the channel 111. The connecting member 12 extends along the length of the beam 11, with both ends of the connecting member 12 located within the channels 111 of the two adjacent beams 11. The traction member 13 is located within the channels 111, with one end of the traction member 13 connected to the connecting member 12 and the other end extending out of the top hole 11a.

[0059] According to the prefabricated concrete beam-column joint 1 of this application, by setting mutually cooperating connecting members 12 and traction members 13, the connecting members 12 can be moved into the channel 111 of two adjacent beams 11, so that the two beams 111 can be assembled and connected, which is easy to operate and improves assembly efficiency.

[0060] Furthermore, the prefabricated concrete beam-column joint 1 may include at least two sets of beam components 10, with the length directions of the different sets of beam components 10 intersecting each other. For example Figure 1 The structure has two sets of beam components 10, and the length directions of the two sets of beam components 10 intersect each other.

[0061] Please see Figures 3 to 5 A connecting pipe 14 is also provided within the channel 111 of the beam 11. The channel 111 may include a first connecting section 111a, a second connecting section 111b, and a transition section 111c. Specifically, the first connecting section 111a extends along the length of the beam 11, and the second connecting section 111b extends vertically. The transition section 111c communicates with the first connecting section 111a and the second connecting section 111b, and the transition section 111c is constructed in an arc shape to facilitate the insertion of the traction member 13. It is conceivable that, in order to improve the adhesion between the connecting pipe 14 and the inner wall of the channel 111, the outer surface of the connecting pipe 14 can be constructed as a rough surface, for example, the connecting pipe 14 can be constructed as a corrugated pipe. Specifically, the outer surface of the connecting pipe 14 has protrusions and / or recesses that adapt to the inner wall of the channel 111, for example, the outer surface of the connecting pipe 14 has protrusions and recesses that adapt to the inner wall of the channel 111, so as to improve the adhesion between the connecting pipe 14 and the inner wall of the channel. The connecting pipe 14 can be constructed as a steel pipe, and the connecting member 12 can be constructed as a reinforcing bar. The outer diameter of the reinforcing bar is less than or equal to the inner diameter of the steel pipe, which facilitates installation.

[0062] Please see Figure 1 and Figure 4A casting cavity 1a is formed between the top surface of the column 20 and the beam assembly 10. The prefabricated concrete beam-column joint 1 also includes a connecting member 18, which fills the casting cavity 1a to establish a connection between the column 20 and the beam assembly 10. Furthermore, the prefabricated concrete beam-column joint 1 also includes a first reinforcing member 15, which extends vertically and connects to the column 20. The first reinforcing member 15 can be pre-embedded in the column 20, or the column 20 can have pre-drilled mounting holes into which the first reinforcing member 15 is inserted before casting. To facilitate installation with other building components such as floor slabs, the first reinforcing member 15 can be configured to protrude upwards from the connecting member 18.

[0063] Understandably, the beam 11 contains a necessary frame structure. To enhance the structural strength of the beam 11, the beam assembly 10 also includes beam reinforcement 17. The frame structure can abut against the inner side of the beam reinforcement 17. To facilitate connection with other building components, the beam reinforcement 17 is constructed to connect to the beam 11 and protrude upwards from the beam 11. To facilitate connection between the beam reinforcement 17 and other components, the portion of the beam reinforcement 17 protruding upwards from the beam 11 is constructed as a U-shape with an opening facing downwards. To improve the strength of the beam 11 and reduce the bending degree of the beam 11 under stress, the precast concrete beam-column joint 1 also includes a second reinforcing member 16. The second reinforcing member 16 extends along the length of the beam 11 and is located between the beam reinforcement 17 and the top surface of the beam 11.

[0064] The following details a construction method for constructing the aforementioned prefabricated concrete beam-column joint 1.

[0065] Specifically, the construction method may include the following steps:

[0066] 1) Manufacture beam 11 and column 20, and hoist column 20 to the designated position;

[0067] 2) Connect one end of the traction member 13 to the connecting member 12, and insert the end of the connecting member 12 connected to the traction member 13 into the channel 111 of one of the beams 11, so that the traction member 13 extends out from the top hole 11a of the beam 11. Hoist the beam 11 with the connecting member 12 to the top of the column 20, and hoist the other beam 11 to the top of the column 20. Adjust the position of the beams 11 so that the two beams 11 are spaced apart and aligned with each other along their own length; or,

[0068] The traction member 13 is inserted into the channel 111 of one of the beams 11, with both ends of the traction member 13 extending from the top hole 11a and the end hole 11b of the beam 11, respectively. The end of the traction member 13 extending from the end hole 11b is connected to the connecting member 12. The traction member 13 is pulled so that part of the connecting member 12 extends into the channel 111 of the beam 11. The beam 11 with the connecting member 12 is hoisted to the top of the column 20, and another beam 11 is hoisted to the top of the column 20. The positions of the beams 11 are adjusted so that the two beams 11 are spaced apart and aligned with each other along their own length.

[0069] 3) Take another traction member 13 and insert it into the channel 111 of the beam 11 that is not connected to the connecting member 12. The two ends of the traction member 13 extend out from the top hole 11a and the end hole 11b of the beam 11, respectively. Connect the part of the traction member 13 that extends out from the end hole 11b to the connecting member 12. Pull the part of the traction member 13 that extends out from the top hole 11a so that the connecting member 12 enters the channel 111 of the beam 11. Continue to pull the traction members 13 at both ends of the connecting member 12 so that the lengths of the two ends of the connecting member 12 that extend into the two beams 11 are equal or approximately equal.

[0070] 4) Bind the end of the traction component 13 extending from the top hole 11a to the beam 11 or to the beam reinforcement 17; pour concrete into the channel 111 through the top hole 11a and into the pouring cavity 1a, thereby achieving the connection and forming of the beam 11 and the column 20.

[0071] It should be noted that for beam-column joint 1 containing multiple sets of beam components 10, steps 2-3 described above can be repeated to place multiple sets of beam components 10 on top of the column 20 before pouring. The aforementioned step numbers do not limit the construction process to a fixed sequence. For some parallel processes in the construction method, the order is not important; they can be performed simultaneously or sequentially. For example, in step 2, beam 11 can be hoisted to the top of the column 20 first, and the position of beam 11 can be adjusted so that the two beams 11 are spaced apart and aligned with each other along their own length. Then, one end of the traction member 13 is connected to the connecting member 12, and the end of the connecting member 12 connected to the traction member 13 is inserted into the channel 111 of one of the beams 11, so that the traction member 13 extends out from the top hole 11a of the beam 11. Alternatively, beam 11 can be hoisted to the top of the column 20 first, and the position of beam 11 can be adjusted so that the two beams 11 are spaced apart and aligned with each other along their own length. The traction member 13 is inserted into the channel 111 of one of the beams 11, with both ends of the traction member 13 extending out from the top hole 11a and the end hole 11b of the beam 11, respectively. The end of the traction member 13 extending out from the end hole 11b is connected to the connecting member 12. The traction member 13 is pulled so that part of the connecting member 12 extends into the channel 111 of the beam 11. For example, first hoist a beam 11 to the top of the column 20, connect one end of the traction member 13 to the connecting member 12, and insert the end of the connecting member 12 connected to the traction member 13 into the channel 111 of the beam 11, so that the traction member 13 extends out from the top hole 11a of the beam 11. Then hoist another beam 11 to the top of the column 20, and adjust the position of the beams 11 so that the two beams 11 are spaced apart and aligned with each other along their own length. Alternatively, first hoist a beam 11 to the top of the column 20, insert the traction member 13 into the channel 111 of the beam 11, and make both ends of the traction member 13 extend out from the top hole 11a and the end hole 11b of the beam 11, respectively. Connect the end of the traction member 13 extending out from the end hole 11b to the connecting member 12, and pull the traction member 13 so that part of the connecting member 12 extends into the channel 111 of the beam 11. Then hoist another beam 11 to the top of the column 20, and adjust the position of the beam 11 so that the two beams 11 are spaced apart and aligned with each other along their own length.

[0072] According to the prefabricated concrete beam-column joint 1 of this application, by setting a traction member 13 to pull the connecting member 12 along the channel 111, it is easy to establish the connection relationship between adjacent beams 11 and convenient to adjust the position of the connecting member 12 in the channel 111. This effectively solves the problem of narrow space and difficult construction in beam-column joints, avoids the complex layout of pre-embedded steel bars, and improves assembly efficiency. Furthermore, after the traction member 13 is completed, it can be fixed to the beam 11 and can be cast along with the channel 111. In addition, the connecting member 12 can be cast together with the connecting member, which further improves the overall structural strength of the beam-column joint 1.

[0073] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “setup” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0074] This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A prefabricated concrete beam-column joint, characterized in that, The prefabricated concrete beam-column joint includes columns and beam components, the beam components including: The beams are arranged in pairs, with the two beams spaced apart along their own length and both located at the top of the column. The beams have a channel inside, a top hole communicating with the channel on the top surface of the beams, and an end hole communicating with the channel on the end face of the beams. Beam reinforcement, which is connected to the beam body; A connecting member extending along the length of the beam, with its two ends respectively located within the channels of two adjacent beams; and A traction member is located within the channel, with one end connected to the connecting member and the other end extending out of the top hole. The other end of the traction member is used to bind to the beam or the beam reinforcement. The connecting member is provided with traction members at both ends, and the two traction members are respectively inserted into the channels of the corresponding beams. Pulling the traction members at both ends of the connecting member can make the lengths of the two ends of the connecting member extending into the channels of the two beams equal or approximately equal.

2. The prefabricated concrete beam-column joint according to claim 1, characterized in that, It includes at least two sets of the beam components, with the length directions of the beam components of different sets intersecting each other.

3. The prefabricated concrete beam-column joint according to claim 1, characterized in that, The channel includes: The first connecting segment extends along the length direction of the beam; The second connecting segment extends vertically; The transition segment is connected to both the first connected segment and the second connected segment, and the transition segment is constructed in an arc shape.

4. The prefabricated concrete beam-column joint according to claim 3, characterized in that, The beam body is also provided with a connecting pipe in the channel. The outer surface of the connecting pipe has protrusions and / or recesses that are adapted to the inner wall of the channel to improve the adhesion between the connecting pipe and the inner wall of the channel.

5. The prefabricated concrete beam-column joint according to claim 1, characterized in that, A casting cavity is formed between the top surface of the column and the beam assembly. The prefabricated concrete beam-column joint also includes a connecting member, which fills the casting cavity to establish a connection between the column and the beam assembly.

6. The prefabricated concrete beam-column joint according to claim 5, characterized in that, The prefabricated concrete beam-column joint also includes a first reinforcing member, which extends vertically and is connected to the column, and the first reinforcing member protrudes upward from the connecting member.

7. The prefabricated concrete beam-column joint according to claim 1, characterized in that, The beam reinforcement protrudes upwards from the beam body.

8. The prefabricated concrete beam-column joint according to claim 7, characterized in that, The portion of the beam reinforcement that protrudes upward from the beam body is U-shaped with an opening facing downward; the beam assembly also includes a second reinforcing member that extends along the length of the beam body and is located between the beam reinforcement and the top surface of the beam body.

9. A construction method for constructing a prefabricated concrete beam-column joint according to any one of claims 1 to 8, wherein the prefabricated concrete beam-column joint comprises a beam, beam reinforcement, a column, a traction component, and a connecting component, characterized in that, The construction method includes: Manufacture the beam and the column; The column is hoisted to the designated position; One end of the traction member is connected to the connecting member, and the end of the connecting member connected to the traction member is inserted into the channel of one of the beams, such that the traction member extends out from the top hole of the beam. The beam with the connecting component is hoisted to the top of the column, and another beam is hoisted to the top of the column. The position of the beams is adjusted so that the two beams are spaced apart and aligned with each other along their own length. Another traction member is inserted into the channel of the beam that is not connected to the connecting member, and both ends of the traction member extend from the top hole and the end hole of the beam, respectively. The part of the traction member extending from the end hole is connected to the connecting member. The part of the traction member extending from the top hole is pulled so that the connecting member enters the channel of the beam. Continue to pull the traction components at both ends of the connecting component so that the lengths of both ends of the connecting component extending into the two beams are equal or approximately equal. The end of the traction member extending from the top hole is bound to the beam or the beam reinforcement.

10. The construction method according to claim 9, characterized in that, Also includes: Concrete is poured into the channel through the top hole; Concrete is poured into the casting cavity formed between the column and the beam assembly to achieve the connection and formation of the beam and the column.

11. A construction method for constructing a prefabricated concrete beam-column joint according to any one of claims 1 to 8, wherein the prefabricated concrete beam-column joint comprises a beam, beam reinforcement, a column, a traction component, and a connecting component, characterized in that, The construction method includes: Manufacture the beam and the column; The column is hoisted to the designated position; The traction member is inserted into the channel of one of the beams, such that both ends of the traction member extend out from the top hole and the end hole of the beam, respectively. Connect one end of the traction member extending from the end hole to the connecting member, and pull the traction member so that the connecting member portion extends into the channel of the beam; The beam with the connecting component is hoisted to the top of the column, and another beam is hoisted to the top of the column. The position of the beams is adjusted so that the two beams are spaced apart and aligned with each other along their own length. Another traction member is inserted into the channel of the beam that is not connected to the connecting member, and both ends of the traction member extend from the top hole and the end hole of the beam, respectively. The part of the traction member extending from the end hole is connected to the connecting member. The part of the traction member extending from the top hole is pulled so that the connecting member enters the channel of the beam. Continue to pull the traction components at both ends of the connecting component so that the lengths of both ends of the connecting component extending into the two beams are equal or approximately equal. The end of the traction member extending from the top hole is bound to the beam or the beam reinforcement.

12. The construction method according to claim 11, characterized in that, Also includes: Concrete is poured into the channel through the top hole; Concrete is poured into the casting cavity formed between the column and the beam assembly to achieve the connection and formation of the beam and the column.

Images