An embedded concrete beam and column connecting joint and a construction method thereof

Abstract

The application discloses an embedded concrete beam and column connecting joint and a construction method thereof, and belongs to the technical field of building construction. The connecting unit comprises a connecting body, a plurality of stepped installation holes which are distributed along the vertical direction and pass through the connecting body, and a grouting channel which is connected with the stepped installation holes and used for injecting mortar into the stepped installation holes; a plurality of sleeves which are movably sleeved in the stepped installation holes, and a fixing cover which is sleeved on the outer side of the middle part of the sleeve; and a plurality of longitudinal fixing steel bars which are fixedly installed at one end of the top of the column and extended to the inside of the corresponding sleeve at the other end. The application can solve the problem that the pre-buried steel bars are deviated from the sleeves in the prior art, so that the whole construction process is affected.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building construction, and particularly relates to an embedded type concrete beam and column connecting node and a construction method thereof. BACKGROUND

[0002] As an important load-bearing component in building structures, the main function of a concrete beam is to bear vertical loads from parts such as floors and roofs, thereby ensuring the overall stability and safety of the building. The combination of a concrete beam and a column node is an advanced building construction method, which connects the concrete beam and the column through node design. This construction method not only improves the overall stability and safety of the building, but also achieves the goals of building industrialization and modularization.

[0003] When a concrete beam is connected to a column, steel bars need to be pre-buried in the column to facilitate connection with the concrete beam. However, in actual operation, due to measurement errors, the pre-buried steel bars and the sleeves on the column may not be accurately aligned. The traditional solution relies on manual knocking by workers to correct the position of the steel bars, but this method is not only labor-intensive, but also inefficient, thereby affecting the construction efficiency. SUMMARY

[0004] The present application aims to provide an embedded type concrete beam and column connecting node structure and a construction method thereof, to solve the problem that the embedded type concrete beam and column connecting node structure mentioned in the background art is difficult to align with the sleeves of the beam due to errors in the longitudinal fixed threaded steel bar pre-buried process, thereby affecting the entire construction process.

[0005] To achieve the above-mentioned purpose, the technical solution provided by the present application is as follows:

[0006] The present application provides an embedded type concrete beam and column connecting node, which comprises a beam and two columns respectively supported at the bottom of both ends of the beam, and further comprises two connecting units respectively connected to both ends of the beam for connecting the beam and the columns; the connecting unit comprises:

[0007] a connecting body, a plurality of stepped mounting holes penetrating the connecting body and distributed in the vertical direction are processed on the connecting body, and a grouting channel for injecting grout into the stepped mounting holes is in communication with the stepped mounting holes;

[0008] a plurality of sleeves respectively movably sleeved in the stepped mounting holes, and a fixing cover is sleeved on the outer side of the middle part of the sleeve, the mounting hole diameter corresponding to the fixing cover is larger than the mounting hole diameter corresponding to the bottom of the sleeve, so that the sleeve is supported and installed in the stepped mounting hole as a whole; and

[0009] Multiple longitudinal fixed reinforcing bars, one end of which is fixedly installed on the top of the column, and the other end extends into the corresponding sleeve.

[0010] This invention optimizes the connection node structure between concrete beams and prefabricated walls. By machining stepped installation holes in the connection body, the sleeve can be movably installed in the installation holes, which facilitates the adjustment of the sleeve position during installation and connection. This solves the technical problem in the prior art where it is difficult to accurately align the pre-embedded steel bars and the sleeve, resulting in inconvenient installation.

[0011] Meanwhile, the present invention also has a grouting channel on the connecting body that is connected to the stepped mounting hole for injecting mortar into the stepped mounting hole. Therefore, after the longitudinal fixing steel bar on the column is aligned and installed with the sleeve, mortar can be injected into the stepped mounting hole through the grouting channel and the mortar can be solidified, thereby ensuring the stability of the sleeve and the fixing cover after connection, and ensuring the firmness and stability of the connection between the beam and the column.

[0012] Furthermore, the fixing cover is a ring-shaped metal cage structure, and the diameter of its outer ring is smaller than the diameter of the hole at the stepped mounting hole where it is located; the bottom of the connecting body is provided with a first slurry outlet that communicates with the stepped mounting hole.

[0013] The fixing cover is designed as a ring-shaped metal cage structure. This serves two purposes: firstly, it limits the position of the sleeve; secondly, after mortar pouring and solidification, it further enhances the strength of the connection between the reinforcing bar and the sleeve, and ensures the overall load-bearing capacity of the connection joint. The first mortar outlet facilitates the determination of whether the mortar is fully filled, and also allows the mortar to overflow to the contact surface between the connecting body and the column, thereby further improving the connection's strength through mortar solidification.

[0014] Furthermore, the connecting body includes a connecting body and a cap installed on the top of the connecting body; wherein the connecting body has a lower mounting port that runs longitudinally through the connecting body, and the cap has an upper mounting port that runs longitudinally through the cap and communicates with the lower mounting port, and the lower diameter of the lower mounting port corresponds to the diameter of the upper mounting port, and both are smaller than the upper diameter of the lower mounting port. The separate connecting body and cap facilitate the installation of the sleeve.

[0015] Furthermore, the bottom of the cover is provided with several protruding teeth, and the top of the connector is provided with several grooves that engage with the protruding teeth. The engagement of the protruding teeth and the grooves helps to further improve the connection between the connector and the cover. The cover and the connector are also connected by fixing bolts, which further fix the connector and the cover.

[0016] Furthermore, the cover is machined with a first grouting hole, which is connected to the upper mounting port through a diversion channel.

[0017] Further, the two ends of the cross beam are connected with a plurality of transverse fixing steel bars, and the end of the connecting body connected with the cross beam is provided with a plurality of insertion holes matched with the transverse fixing steel bars. The connecting unit and the cross beam can be connected through the cooperation between the transverse fixing steel bars and the insertion holes.

[0018] Further, the transverse fixing steel bar is a screw steel bar, and a grouting channel for grouting into the insertion hole is formed on the connecting body; and a second grouting outlet communicated with the insertion hole is formed on the connecting body. The grouting channel is used to inject the mortar into the insertion hole, so that the mortar is solidified, thereby improving the connection firmness between the connecting unit and the cross beam.

[0019] Further, the two ends of the cross beam are provided with insertion plates, and the end of the connecting body connected with the cross beam is provided with insertion grooves matched with the insertion plates. Through the cooperation between the insertion plates and the insertion grooves, the connection between the connecting body and the cross beam can be guided and positioned, and the connection firmness between the connecting body and the cross beam is further improved.

[0020] Further, the number of the transverse fixing steel bars is four, the insertion plates and the insertion grooves are both provided with a cross-shaped structure, and the transverse fixing steel bars are symmetrically distributed at four corner angles of the cross-shaped insertion plate, thereby ensuring the overall structural strength of the connection between the connecting body and the cross beam.

[0021] The application also provides a construction method of the embedded concrete beam and column connecting node.

[0022] Two connecting units are connected to the two ends of the cross beam;

[0023] The sleeves are respectively arranged in the stepped mounting holes on the connecting body, and then the positions of the sleeves are adjusted so that the longitudinal fixing steel bars at the top of the columns are aligned with the sleeves;

[0024] The sleeves are movably sleeved on the outside of the longitudinal fixing steel bars, so that the cross beam is supported at the top of the two columns;

[0025] The mortar is injected into the stepped mounting holes through the grouting channel, and the mortar is solidified, so that the sleeve and the fixing cover are fixed, and the cross beam and the columns are connected.

[0026] Further, the transverse fixing steel bars at the two ends of the cross beam are inserted into the insertion holes on the connecting body, so that the cross beam and the connecting unit are connected; and the method further comprises the following steps:

[0027] The mortar is injected into the insertion holes through the grouting channel, and the mortar is solidified.

[0028] Compared with the prior art, the technical scheme provided by the application can achieve the following beneficial effects:

[0029] (1) The connecting unit is arranged for connecting the cross beam and the column, wherein the sleeve is movably sleeved in the stepped mounting hole of the connecting body, the longitudinal fixing steel bars at the top of the column are aligned with the sleeve by adjusting the position of the sleeve, and the longitudinal fixing steel bars are inserted into the sleeve, so that the preliminary connection of the connecting body and the column is realized, the installation is convenient, and the problem of difficult installation caused by error is avoided; then the mortar is poured into the stepped mounting hole through the grouting channel, the mortar is solidified to fix the position of the sleeve, so as to ensure the stability of the connection between the column and the cross beam; meanwhile, the overall structural strength and the bearing capacity of the connecting joint can be effectively improved.

[0030] (2) The fixed cover is arranged on the outside of the middle part of the sleeve, and the diameter of the mounting hole corresponding to the fixed cover is greater than the diameter of the mounting hole corresponding to the bottom of the sleeve, so that on the one hand, the sleeve can be limited by the fixed cover to prevent the sleeve from falling out of the connecting body as a whole; on the other hand, the connection firmness between the sleeve and the connecting body can be effectively improved by the cooperation of the fixed cover and the solidified mortar, so as to ensure the structural strength.

[0031] (3) In the present application, the connecting unit and the cross beam are connected through the mutually matched transverse fixing steel bars and the insertion hole, then the mortar is injected into the insertion hole through the grouting channel, and the mortar is solidified, so as to improve the connection firmness between the connecting unit and the cross beam and the structural strength of the connection part.

[0032] (4) In the present application, the connecting body and the cross beam are further connected through the mutually matched insertion plate and insertion slot, so that on the one hand, the positioning can be performed, and the accurate alignment of the transverse fixing steel bars and the insertion hole is facilitated; on the other hand, especially the structure design of the insertion plate and the insertion slot is optimized, so as to be beneficial to further improving the firmness of the connection between the connecting body and the cross beam and ensuring the overall structural strength. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a three-dimensional structure schematic diagram of the connecting node of the embodiment of the present application;

[0034] Figure 2 It is an overall explosion structure schematic diagram of the connecting node of the embodiment of the present application;

[0035] Figure 3 It is an overall cross-sectional structure schematic diagram of the connecting node of the embodiment of the present application;

[0036] Figure 4 It is a structure schematic diagram of the cover of the embodiment of the present application;

[0037] Figure 5 It is a structure schematic diagram of the sleeve of the embodiment of the present application;

[0038] Figure 6This is a cross-sectional structural diagram of the fixing cover according to an embodiment of the present invention.

[0039] In the diagram: 1. Crossbeam; 2. Column; 3. Connector; 4. Cover; 5. Insert plate; 6. Horizontal fixing reinforcement; 7. Connecting seat; 8. Insertion hole; 9. Lower mounting port; 10. Threaded hole; 11. Sleeve; 12. Fixing cover; 1201. Outer ring surface; 1202. Inner ring surface; 1203. Reinforcing partition; 1204. Horizontal perforation; 1205. Longitudinal perforation; 13. Embedding port; 14. Fixing bolt; 15. Protruding tooth; 16. Groove; 17. First grouting hole; 18. Diversion channel; 19. Second grouting hole; 20. First grout outlet; 21. Longitudinal fixing reinforcement; 22. Second grout outlet; 23. Upper mounting port. Detailed Implementation

[0040] To further understand the content of this invention, it will now be described in further detail with reference to the accompanying drawings and embodiments.

[0041] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0042] Furthermore, many specific details are set forth in the following description to provide a full understanding of the invention. However, the invention may also be implemented in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0043] Furthermore, in the following description, the term "one embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0044] like Figure 1 As shown, this embodiment of the invention provides an embedded concrete beam-column connection node, including a horizontal beam 1 and two columns 2 respectively supported at the bottom of both ends of the horizontal beam 1, and also including two connecting units, which are respectively connected to both ends of the horizontal beam 1 for connecting the horizontal beam and the columns 2; combined with Figure 2 The connection unit includes:

[0045] The connecting body is provided with a plurality of stepped installation holes penetrating through the connecting body and distributed along the vertical direction, and a grouting channel for injecting mortar into the stepped installation hole;

[0046] A plurality of sleeves 11 are movably sleeved in the stepped installation holes, and a fixing cover 12 is sleeved on the outer side of the middle part of the sleeve 11, the installation hole diameter corresponding to the fixing cover 12 is larger than the installation hole diameter corresponding to the bottom of the sleeve 11, so that the sleeve 11 is supported and installed in the stepped installation hole as a whole; and

[0047] A plurality of longitudinal fixed steel bars 21 are fixedly installed at one end on the top of the column 2 and extended to the inside of the corresponding sleeve 11 at the other end.

[0048] The embodiment of the present application connects the column and the beam by setting the connecting unit, specifically, the connecting body is provided with a plurality of stepped installation holes penetrating through the connecting body and distributed along the vertical direction, the sleeve 11 is movably installed in the stepped installation hole, that is, the diameter of the sleeve 11 is smaller than the diameter of the corresponding installation hole, so that the sleeve 11 can move in the installation hole to adjust the position of the sleeve 11, thereby facilitating the alignment and connection of the longitudinal fixed steel bar 21 at the top of the column 2 and the sleeve 11, and solving the problem of difficulty in alignment and affecting the installation efficiency caused by installation deviation in the prior art.

[0049] When the longitudinal fixed steel bar 21 at the top of the column 2 is inserted into the sleeve 11, the beam 1 and the connecting unit are supported at the top of the two columns 2, at this time, the mortar is injected into the stepped installation hole through the grouting channel, and the mortar gradually solidifies, thereby fixing the position of the sleeve 11 and ensuring the firmness and stability of the connection between the sleeve 11 and the longitudinal fixed steel bar 21. Meanwhile, through the setting of the fixing cover 12, on the one hand, the sleeve 11 can be positioned, and on the other hand, the mortar flows into the inside of the fixing cover 12 and, after solidification, together with the fixing cover 12, is conducive to further improving the overall structural strength and bearing capacity of the connecting joint.

[0050] As a further improvement of the embodiment of the present application, the fixing cover 12 is a ring-shaped metal cage structure, the outer ring diameter of which is smaller than the diameter of the stepped installation hole where it is located, so as to facilitate the adjustment of the position of the sleeve 11. By setting the fixing cover 12 as a ring-shaped metal cage structure, on the one hand, the mortar can be filled in the inside of the fixing cover 12 and the outside of the sleeve 11 through the fixing cover 12, and on the other hand, through the cooperation of the metal cage structure and the mortar, the structural strength and connection firmness of the connecting joint are further improved.

[0051] Specifically, in combination with Figure 3 , Figure 5 , Figure 6In some embodiments, the fixed cover 12 comprises an outer ring surface 1201, an inner ring surface 1202, and a plurality of horizontal reinforcing partitions 1203 connected between the outer ring surface and the inner ring surface, the inner ring surface 1202 wraps the outside of the sleeve 11, and the outer ring surface 1201 and the inner ring surface 1202 are both processed with uniformly distributed transverse perforations 1204, and the horizontal reinforcing partitions 1203 are all processed with uniformly distributed longitudinal perforations 1205, so that the entire fixed cover 12 forms an overall cage structure that can make the mortar flow and communicate with each other, further improving the structural strength and connection firmness of the device.

[0052] Preferably, the bottom of the connecting body is provided with a first mortar outlet 20 communicated with the stepped mounting hole, after pouring concrete into the stepped mounting hole, when the first mortar outlet 20 continuously flows out mortar, it indicates that the mortar has been filled, which can ensure the compactness of the mortar filling, and the solidified mortar between the bottom of the connecting body and the column can further ensure the connection firmness and structural strength.

[0053] It should be noted that the reinforcing partitions 1203 can be directly used as annular plates with longitudinal perforations 1205, or can be formed by a plurality of spaced ribs connected between the outer ring surface 1201 and the inner ring surface 1202, and the gap between adjacent ribs is the longitudinal perforation 1205.

[0054] As a further preferred embodiment of the present application, in combination with Figure 1 , Figure 2 and Figure 4 , the connecting body comprises a connecting body 3 and a cover 4 mounted on the top of the connecting body 3; wherein the connecting body 3 is processed with a lower mounting hole 9 longitudinally penetrating the connecting body 3, the cover 4 is processed with an upper mounting hole 23 longitudinally penetrating the cover 4 and corresponding communicated with the lower mounting hole 9, and the lower mounting hole 9 is a stepped hole with a smaller lower hole diameter than an upper hole diameter, and the lower hole diameter of the lower mounting hole 9 corresponds to the hole diameter of the upper mounting hole 23, so as to facilitate the installation and position adjustment of the sleeve 11 and the fixed cover 12. Specifically, the connecting body 3 is connected with the cross beam first, then the sleeve is placed in the lower mounting hole 9, and then the cover 4 is covered, so that the top of the sleeve 11 passes through the upper mounting hole 23, and the cover 4 and the connecting body 3 are fixed, thereby facilitating the installation of the sleeve 11 and the fixed cover 12.

[0055] In the embodiment of the present application, the cover 4 and the connecting body 3 are further connected by a fixing bolt 14, specifically, the cover 4 is processed with an embedding entrance 13, the fixing bolt 14 is movably sleeved in the embedding entrance 13, and the connecting body 3 is correspondingly processed with a threaded hole 10 matched with the fixing bolt 14.

[0056] More preferably, as shown inFigure 1 、 Figure 2 As shown in FIG. 1 and FIG. 2, the bottom of the cover 4 is provided with a plurality of protruding teeth 15, and the top of the connecting body 3 is correspondingly provided with a plurality of grooves 16 matched with the protruding teeth 15, and the matching of the protruding teeth 15 and the grooves 16 is beneficial to further improving the firmness of the connection between the cover 4 and the connecting body 3.

[0057] In the embodiment of the present application, the cover 4 is processed with a first grouting hole 17, and the first grouting hole 17 is communicated with the upper mounting port 23 through a shunt 18. The first grouting hole 17 is preferably arranged at the center of the cover 4, and the first grouting hole 17 and the shunt 18 can simultaneously inject mortar into a plurality of upper mounting ports 23, and the mortar gradually flows into the lower mounting port.

[0058] In some embodiments, a plurality of transverse fixing steel bars 6 are connected to both ends of the cross beam 1, and the end of the connecting body connected to the cross beam 1 is correspondingly provided with a plurality of insertion holes 8 matched with the transverse fixing steel bars 6 (the end of the connecting body connected to the cross beam 1 is provided with a connecting seat 7, and the insertion holes 8 are located in the connecting seat 7). The insertion holes 8 and the transverse fixing steel bars 6 are inserted and matched to realize the preliminary connection of the connecting unit and the cross beam 1.

[0059] Furthermore, the transverse fixing steel bars 6 and the longitudinal fixing steel bars are all made of screw steel bars, and the connecting body is processed with a grouting channel for injecting mortar into the insertion holes 8. The mortar is injected into the insertion holes 8 through the grouting channel, and the mortar is solidified to fix the transverse fixing steel bars 6 and the insertion holes 8, which is beneficial to improving the firmness of the connection of the cross beam 1 and the connecting unit and improving the structural strength. Specifically, the connecting body is processed with a second grouting hole 19 communicated with the insertion holes 8, and the side surface of the connecting body is processed with a second mortar outlet 22 communicated with the insertion holes 8. The mortar is injected into the insertion holes 8 through the second grouting hole 19, and the injection is stopped when the second mortar outlet 22 continuously discharges the mortar, and the grouting hole is blocked to make the mortar solidify. The use of screw steel bars can increase the connection strength after the mortar is solidified.

[0060] In order to further ensure the firmness of the connection of the cross beam and the connecting body and facilitate the accurate positioning of the connection of the transverse fixing steel bars 6 and the insertion holes 8, the both ends of the cross beam 1 are correspondingly provided with insertion plates 5 in the embodiment of the present application, and the end of the connecting body connected to the cross beam 1 is correspondingly processed with insertion grooves matched with the insertion plates 5.

[0061] Specifically, in the embodiment of the present application, it is further preferred that the number of the transverse fixing steel bars 6 is four, and the insertion plates 5 and the insertion grooves are both correspondingly processed as cross-shaped structures, and the transverse fixing steel bars 6 are symmetrically distributed at four corner angles of the cross-shaped insertion plates 5, which is beneficial to further ensuring the firmness of the connection between the connecting unit and the cross beam and ensuring the structural strength of the connection.

[0062] The embodiment of the present application also provides a construction method of the embedded concrete beam-column connecting joint, comprising the following steps:

[0063] Two connecting units are connected to two ends of the cross beam 1;

[0064] The sleeve 11 is arranged in the stepped installation hole of the connecting body respectively, and then the position of the sleeve 11 is adjusted so that the longitudinal fixed steel bars 21 at the top of the column 2 are aligned with the sleeve 11;

[0065] The sleeve 11 is movably sleeved on the outside of the longitudinal fixed steel bars 21, so that the cross beam 1 is supported on the top of the two columns 2;

[0066] The mortar is injected into the stepped installation hole through the grouting channel, and the sleeve 11 and the fixed cover 12 are fixed and the cross beam 1 and the column 2 are connected after the mortar is solidified.

[0067] Furthermore, the transverse fixed steel bars 6 at the two ends of the cross beam 1 are correspondingly inserted into the insertion hole 8 of the connecting body, so that the preliminary connection of the cross beam and the connecting unit is realized, then the mortar is injected into the insertion hole 8 through the grouting channel, and the connecting body 3 and the cross beam 1 are connected more stably after the mortar is solidified.

[0068] The above description of the present application and its embodiments is illustrative and not restrictive, and the embodiment shown in the drawings is only one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above description, without departing from the purpose of the present application, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. An embedded concrete beam and column connection joint comprising a beam (1) and two columns (2) respectively supported at the bottom of both ends of the beam (1), characterized in that, Also include two connecting units, two connecting units are connected to the two ends of the beam (1), for connecting the beam and the column (2); the connecting unit comprises: The connecting body is processed with a plurality of stepped installation holes penetrating through the connecting body and distributed in the vertical direction, and a grouting channel for injecting mortar into the stepped installation hole; A plurality of sleeves (11) are movably sleeved in the stepped installation holes, and a fixing cover (12) is sleeved on the outer side of the middle part of the sleeve (11), the hole diameter of the installation hole corresponding to the fixing cover (12) is larger than the hole diameter of the installation hole corresponding to the bottom of the sleeve (11), so that the sleeve (11) is integrally supported and installed in the stepped installation hole; and a plurality of longitudinal fixed steel bars (21) are fixedly installed at one end of the top of the column (2) and extended to the inside of the corresponding sleeve (11); The fixing cover (12) is a ring-shaped metal cage structure, and the bottom of the connecting body is provided with a first grout outlet (20) communicated with the stepped installation hole; the fixing cover (12) comprises an outer ring surface (1201), an inner ring surface (1202) and a plurality of horizontal reinforcing partitions (1203) connected between the outer ring surface and the inner ring surface, the inner ring surface (1202) is wrapped on the outside of the sleeve (11), and the outer ring surface (1201) and the inner ring surface (1202) are both processed with uniformly distributed transverse perforations (1204), and the horizontal reinforcing partitions (1203) are both processed with uniformly distributed longitudinal perforations (1205), so that the whole fixing cover (12) forms a whole cage structure which can make the mortar flow and communicate with each other; The connecting body comprises a connecting body (3) and a cover (4) installed on the top of the connecting body (3); wherein the connecting body (3) is processed with a lower installation hole (9) penetrating through the connecting body (3) in the longitudinal direction, the cover (4) is processed with an upper installation hole (23) penetrating through the cover (4) in the longitudinal direction and communicated with the lower installation hole (9), and the lower hole diameter of the lower installation hole (9) corresponds to the hole diameter of the upper installation hole (23), and both are smaller than the upper hole diameter of the lower installation hole (9); the lower installation hole (9) is the stepped installation hole.

2. The interior-embedded concrete beam and column connection joint according to claim 1, characterized in that, The bottom of the cover (4) is provided with a plurality of protruding teeth (15), and the top of the connecting body (3) is correspondingly provided with a plurality of grooves (16) matched with the protruding teeth (15); the cover (4) and the connecting body (3) are further connected with a fixing bolt (14).

3. The interior-embedded concrete beam and column connection joint according to claim 1, characterized in that, The cover (4) is processed with a first grouting hole (17), and the first grouting hole (17) and the upper installation hole (23) are communicated through a shunt (18).

4. The interior-embedded concrete beam and column connection joint according to claim 2, characterized in that, The two ends of the beam (1) are connected with a plurality of transverse fixed steel bars (6), and one end of the connecting body connected with the beam (1) is correspondingly provided with a plurality of insertion holes (8) matched with the transverse fixed steel bars (6).

5. The interior-embedded concrete beam and column connection joint according to claim 4, characterized in that, The transverse fixed steel bars (6) are made of threaded steel bars, and the connecting body is processed with a grouting channel for injecting grout into the insertion hole (8); the connecting body is processed with a second grout outlet (22) communicated with the insertion hole (8).

6. The interior-embedded concrete beam and column connection joint according to claim 5, characterized in that, Both ends of the crossbeam (1) are provided with insert plates (5), and the end of the connecting body connected to the crossbeam (1) is correspondingly machined with a slot that matches the insert plate (5); there are four horizontal fixing steel bars (6), and the insert plate (5) and the slot are both machined into a cross-shaped structure, and the horizontal fixing steel bars (6) are symmetrically distributed at the four corners of the cross-shaped insert plate (5).

7. A method of constructing an interiorly embedded concrete beam and column connection node according to any one of claims 1 to 6, characterised in that, include: Connect the two connecting units to both ends of the crossbeam (1); Place the sleeves (11) into the stepped mounting holes on the connecting body, and then adjust the position of the sleeves (11) so that the longitudinal fixing steel bars (21) at the top of the column (2) are aligned with the sleeves (11). The sleeve (11) is movably fitted onto the outside of the longitudinal fixed steel bar (21), thereby supporting the crossbeam (1) on the top of the two columns (2); Grout is injected into the stepped installation hole through the grouting channel. Once the grout has solidified, the sleeve (11) is fixed to the fixing cover (12) and the beam (1) is connected to the column (2).

8. The method of constructing an interior concrete beam-to-column connection node according to claim 7, wherein, Both ends of the crossbeam (1) are connected to multiple transverse fixed steel bars (6), and the end of the connecting body connected to the crossbeam (1) is provided with multiple insertion holes (8) that match the transverse fixed steel bars (6); so that the transverse fixed steel bars (6) at both ends of the crossbeam (1) are inserted into the insertion holes (8) on the connecting body, thereby realizing the connection between the crossbeam and the connecting unit. Also includes: Grout is injected into the grouting hole (8) through the grouting channel and allowed to solidify.

Images