Prefabricated building wall T-node connection structure and construction method thereof

Abstract

The present application relates to a T-node connection structure for an assembled building wall, wherein the first steel concrete assembly, the second steel concrete assembly and the third steel concrete assembly expose the first rectangular steel frame structure, the second rectangular steel frame structure and the third rectangular steel frame structure on the adjacent sides respectively; the third steel concrete assembly is exposed with side steel frame structures on both sides, and the first steel concrete assembly and the second rectangular steel frame structure are provided with side support cavities for accommodating the side steel frame structures; and also includes castings located in the casting cavity, the first side support cavity and the second side support cavity. When casting the present application, there is no need to set additional fixings for auxiliary support, which makes casting convenient and construction efficient. At the same time, the "J"-shaped castings tightly connect and fix the first steel concrete assembly, the second steel concrete assembly and the third steel concrete assembly, and use high-strength concrete mixed with high-strength cement for casting, thereby improving the strength and anti-seepage effect of the T-type connection structure.

Description

Technical Field

[0001] The present application relates to the field of prefabricated building construction, and in particular to a prefabricated building wall T-node connection structure and a construction method thereof. Background Art

[0002] The steel-concrete assemblies used in prefabricated buildings are generally rectangular in structure. They are manufactured in the factory and then transported to the construction site for assembly. The biggest problem in the promotion and application of existing prefabricated buildings is the inability to form a stable and unified system. The key to the problem lies in the node connection of the prefabricated wall. The T-type node is the most common node in prefabricated buildings.

[0003] For prefabricated buildings with large building areas, the indoor roof is formed by splicing several prefabricated concrete wall panels, and the bottom is supported by vertical walls at the joints, forming a T-shaped assembly structure. However, most of the joints have the disadvantages of weak structural integrity, poor earthquake resistance, and poor anti-leakage, which can easily cause deformation and cracks in the prefabricated walls. Summary of the invention

[0004] In order to improve the strength, earthquake resistance and leakage resistance of the T-node connection structure of an assembled building, the present application provides a T-node connection structure of an assembled building wall and a construction method thereof.

[0005] In the first aspect, the present application provides a prefabricated building wall T-node connection structure, which adopts the following technical solution:

[0006] A T-node connection structure of an assembled building wall, comprising a first steel concrete assembly, a second steel concrete assembly and a third steel concrete assembly, wherein the first steel concrete assembly and the second steel concrete assembly are located on the same horizontal plane, the third steel concrete assembly is perpendicular to the first steel concrete assembly, the first steel concrete assembly and the second steel concrete assembly are symmetrically arranged about the third steel concrete assembly, the first steel concrete assembly, the second steel concrete assembly and the third steel concrete assembly respectively expose a first rectangular steel frame structure, a second rectangular steel frame structure and a third rectangular steel frame structure at adjacent side portions, and a casting cavity for accommodating the first rectangular steel frame structure and the second rectangular steel frame structure is provided between the first steel concrete assembly and the second steel concrete assembly;

[0007] The side walls of the third steel concrete assembly facing the first steel concrete assembly and the second steel concrete assembly are respectively exposed with side steel reinforcement frame structures; the first rectangular steel reinforcement frame structure is located at the upper part of the side end surface of the first steel concrete assembly, and the lower part of the side end surface of the first steel concrete assembly is provided with a first side support cavity for accommodating the side steel reinforcement frame structure; the second rectangular steel reinforcement frame structure is located at the upper part of the side end surface of the second steel concrete assembly, and the lower part of the side end surface of the second steel concrete assembly is provided with a second side support cavity for accommodating the side steel reinforcement frame structure;

[0008] After the first rectangular steel frame structure, the second rectangular steel frame structure and the third rectangular steel frame structure are installed in a T-shape, a rectangular frame structure is formed inside thereof, and four connecting steel bars are inserted into the rectangular frame structure, and the connecting steel bars are fixed to the four corners of the rectangular frame;

[0009] A positioning block is integrally formed at the bottom of the adjacent end surfaces of the first and second steel-concrete assemblies, the positioning block is located below the first side support cavity and the second side support cavity, the vertical upward projection of the positioning block is located in the casting cavity, and the casting cavity is connected to the first side support cavity and the second side support cavity;

[0010] Also included is a casting member located within the casting cavity, the first side support cavity, and the second side support cavity.

[0011] By adopting the above technical solution, after the first rectangular steel frame structure, the second rectangular steel frame structure and the third rectangular steel frame structure are fixed by connecting the steel bars, the first steel concrete assembly and the second steel concrete assembly are supported and fixed by the third steel concrete assembly. At this time, the T-shaped connection structure is stable, and no additional auxiliary tools (usually auxiliary brackets or cranes) are required to position the first steel concrete assembly, the second steel concrete assembly or the third steel concrete assembly during pouring and maintenance, making construction convenient. And due to the setting of the positioning block, the vertical upward projection of the positioning block is located in the casting cavity, so that the casting cavity and the first side support cavity and the second side support cavity are connected, so that the casting parts in the casting cavity, the first side support cavity and the second side support cavity are in the shape of a "J". The two side edges of the casting parts are used to support the first steel concrete assembly and the second steel concrete assembly to make the connection stable. At the same time, the casting parts extend horizontally into the first side support cavity and the second side support cavity, extending the climbing distance from the top to the bottom of the first steel concrete assembly and the second steel concrete assembly, so that the casting surfaces of the casting parts and the first steel concrete assembly and the second steel concrete assembly have a good anti-seepage effect.

[0012] In the present application scheme, during pouring, it is only necessary to set up templates at both ends of the pouring cavity, the first side support cavity, and the second side support cavity, and there is no need to set up additional fixings to assist in supporting the first steel concrete assembly, the second steel concrete assembly, and the third steel concrete assembly, so that pouring is convenient and construction efficiency is high. At the same time, the "J"-shaped pouring parts have good support, and the pouring parts tightly connect and fix the first steel concrete assembly, the second steel concrete assembly, and the third steel concrete assembly, and have good seismic resistance. Use high-strength cement to mix high-strength concrete for pouring, so as to improve the strength and anti-seepage effect of the T-type connection structure.

[0013] Optionally, the first rectangular steel frame structure includes a plurality of first rectangular steel frames arranged in a straight line along the horizontal direction; the second rectangular steel frame structure includes a plurality of second rectangular steel frames arranged in a straight line along the horizontal direction; the third rectangular steel frame structure includes a plurality of third rectangular steel frames arranged in a straight line along the horizontal direction;

[0014] The first rectangular steel frame, the second rectangular steel frame and the third rectangular steel frame are in the vertical direction, the first rectangular steel frame, the second rectangular steel frame and the third rectangular steel frame are arranged in sequence along the horizontal direction, and the first rectangular steel frame, the second rectangular steel frame and the third rectangular steel frame are arranged at intervals.

[0015] By adopting the above technical solution, the first rectangular steel frame, the second rectangular steel frame and the third rectangular steel frame are in a vertical direction, so that the T-shaped connection structure has a better vertical support effect. At the same time, a rectangular frame structure is formed from a horizontal direction, which makes it convenient for each connecting steel bar to connect to each rectangular steel frame, thereby increasing the number of fixing points, thereby improving the connection strength and support strength.

[0016] Optionally, the side steel bar frame structure includes a plurality of side rectangular steel frames and a plurality of reinforcing steel bars arranged in a straight line along the horizontal direction, the length direction of the reinforcing steel bars is the horizontal direction, and the reinforcing steel bars fix all the side rectangular steel frames on the same side of the third steel-concrete assembly.

[0017] By adopting the above technical solution, the steel bars are strengthened to connect several side rectangular steel frames, thereby improving the overall correlation, increasing the connection strength, and improving the seismic performance.

[0018] In a second aspect, the present application provides a construction method for a T-node connection structure of an assembled building wall, using the following technical solution:

[0019] A construction method of the above-mentioned assembled building wall T-node connection structure comprises the following steps:

[0020] S1, build the main structure: vertically install the third steel concrete assembly on the ground, with the third rectangular steel frame structure facing upward, horizontally slide the first steel concrete assembly and the second steel concrete assembly close to the third steel concrete assembly, and stop when the positioning block abuts against the side wall of the third steel concrete assembly. At this time, the two side steel frame structures are respectively located in the first side support cavity and the second side support cavity, and the first rectangular steel frame structure, the second rectangular steel frame structure and the third rectangular steel frame structure are located in the casting cavity;

[0021] S2, connecting the first rectangular steel frame structure, the second rectangular steel frame structure and the third rectangular steel frame structure, passing the connecting steel bars through the first rectangular steel frame structure, the second rectangular steel frame structure and the third rectangular steel frame structure and welding them, and the connecting steel bars are welded and fixed to the four corners of the rectangular frame;

[0022] S3, installing the formwork, which closes both ends of the casting cavity in the horizontal direction;

[0023] S4, pouring concrete. The concrete is poured from the top of the pouring cavity. The concrete first fills the first side support cavity and the second side support cavity, and then fills the pouring cavity. After the concrete solidifies, it is demoulded and cured.

[0024] By adopting the above technical solution, a T-type connection structure with high seismic resistance, high connection strength and high anti-seepage performance is constructed.

[0025] In a third aspect, the present application provides a construction method for a T-node connection structure of an assembled building wall, using the following technical solution:

[0026] A construction method of the above-mentioned assembled building wall T-node connection structure comprises the following steps:

[0027] S1, build the main structure: vertically install the third steel concrete assembly on the ground, with the third rectangular steel frame structure facing upward, horizontally slide the first steel concrete assembly and the second steel concrete assembly close to the third steel concrete assembly, and stop when the positioning block abuts against the side wall of the third steel concrete assembly. At this time, the two side steel frame structures are respectively located in the first side support cavity and the second side support cavity, and the first rectangular steel frame structure, the second rectangular steel frame structure and the third rectangular steel frame structure are located in the casting cavity;

[0028] S2, connecting the first rectangular steel frame structure, the second rectangular steel frame structure and the third rectangular steel frame structure, passing the connecting steel bars through all the first rectangular steel frames, the second rectangular steel frames and the third rectangular steel frames and welding them, and the connecting steel bars are welded and fixed to the four corners of the rectangular frame structure formed by the first rectangular steel frame, the second rectangular steel frame and the third rectangular steel frame;

[0029] S3, installing the formwork, which closes both ends of the casting cavity in the horizontal direction;

[0030] S4, pouring concrete. The concrete is poured from the top of the pouring cavity, and the concrete first fills the two side support cavities and then fills the pouring cavity. After the concrete solidifies, it is demoulded and cured.

[0031] By adopting the above technical solution, after the first rectangular steel frame, the second rectangular steel frame and the third rectangular steel frame are welded, each connecting steel bar connects and fixes all the first rectangular steel frames, the second rectangular steel frames and the third rectangular steel frames, so that the T-type connection structure has more connection points, improves the connection strength and seismic resistance, and at the same time, there is no need to set up additional auxiliary parts for supporting the first steel-concrete assembly, the second steel-concrete assembly and the third steel-concrete assembly, making casting more convenient.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. After the first rectangular steel bar frame structure, the second rectangular steel bar frame structure, and the third rectangular steel bar frame structure are fixed by connecting steel bars, the first steel-concrete composite member and the second steel-concrete composite member are supported and fixed by the third steel-concrete composite member. At this time, the T-shaped connection structure is stable, and no additional auxiliary tools are required to position the first steel-concrete composite member, the second steel-concrete composite member, or the third steel-concrete composite member during pouring and curing, making the construction convenient and the construction efficiency high.

[0034] 2. The casting member is in a "several" shape. The two side edges of the casting member are used to support the first steel-concrete composite member and the second steel-concrete composite member, making the connection stable. At the same time, the casting member extends horizontally into the first side support cavity and the second side support cavity, extending the climbing distance from the top to the bottom of the first steel-concrete composite member and the second steel-concrete composite member, and having a good anti-seepage effect.

[0035] 3. The first rectangular steel frame, the second rectangular steel frame, and the third rectangular steel frame are in the vertical direction. The connecting steel bars connect all the first rectangular steel bar frame structures, the second rectangular steel bar frame structures, and the third rectangular steel bar frame structures. The number of connection points is large and the connection strength is good, making the overall relevance of the first steel-concrete composite member, the second steel-concrete composite member, and the third steel-concrete composite member relatively good, and improving the strength of the T-shaped structure.

[0036] 4. The reinforcing steel bars connect several side rectangular steel frames, improving the overall relevance and strength of the several side rectangular steel frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is an overall structure display diagram of the T-shaped node connection structure of the prefabricated building wall in the embodiment.

[0038] Figure 2 It is a structure display diagram before concrete pouring in the embodiment.

[0039] Figure 3 It is an exploded view of the embodiment.

[0040] Figure 4 It is Figure 2 an enlarged view of part A of

[0041] Figure 5 It is a front display diagram before concrete pouring in the embodiment.

[0042] Description of the reference numerals: 1. First steel-concrete composite member; 11. First rectangular steel bar frame structure; 111. First rectangular steel frame; 12. First side support cavity; 2. Second steel-concrete composite member; 21. Second rectangular steel bar frame structure; 211. Second rectangular steel frame; 22. Second side support cavity; 3. Third steel-concrete composite member; 31. Third rectangular steel bar frame structure; 311. Third rectangular steel frame; 4. Pouring cavity; 5. Connecting steel bar; 6. Side steel bar frame structure; 61. Side rectangular steel frame; 62. Reinforcing steel bar; 7. Positioning block; 8. Casting member. Detailed implementation mode

[0043] The following further elaborates on this application in conjunction with the accompanying drawings.

[0044] The embodiment of this application discloses a T-shaped node connection structure for an assembled building wall. Refer to Figure 1 , the T-shaped node connection structure of the assembled building wall includes a first steel-concrete composite member 1, a second steel-concrete composite member 2, and a third steel-concrete composite member 3. The first steel-concrete composite member 1 and the second steel-concrete composite member 2 are on the same horizontal plane, the third steel-concrete composite member 3 is perpendicular to the first steel-concrete composite member 1, and the third steel-concrete composite member 3 is located below the first steel-concrete composite member 1 and the second steel-concrete composite member 2. The first steel-concrete composite member 1 and the second steel-concrete composite member 2 are symmetrically arranged with respect to the third steel-concrete composite member 3.

[0045] Refer to Figure 2 , Figure 3 , the first steel-concrete composite member 1, the second steel-concrete composite member 2, and the third steel-concrete composite member 3 respectively expose a first rectangular steel bar frame structure 11, a second rectangular steel bar frame structure 21, and a third rectangular steel bar frame structure 31 on adjacent side parts, and a pouring cavity 4 for accommodating the first rectangular steel bar frame structure 11, the second rectangular steel bar frame structure 21, and the third rectangular steel bar frame structure 31 is provided between the first steel-concrete composite member 1 and the second steel-concrete composite member 2.

[0046] Refer to Figure 3 , the first rectangular steel bar frame structure 11 includes a plurality of first rectangular steel frames 111 arranged in a straight line along the horizontal direction. The first rectangular steel frame 111 is in a "U" shape, and its two ends are fixed to the end face of the first steel-concrete composite member 1.

[0047] Refer to Figure 3 , the second rectangular steel bar frame structure 21 includes a plurality of second rectangular steel frames 211 arranged in a straight line along the horizontal direction. The second rectangular steel frame 211 is in a "U" shape, and its two ends are fixed to the end face of the second steel-concrete composite member 2.

[0048] Refer to Figure 3 , the third rectangular steel bar frame structure 31 includes a plurality of third rectangular steel frames 311 arranged in a straight line along the horizontal direction. The third rectangular steel frame 311 is in a "U" shape, and its two ends are fixed to the end face of the third steel-concrete composite member 3.

[0049] Refer to Figure 4, the first rectangular steel frame 111, the second rectangular steel frame 211, and the third rectangular steel frame 311 are in the vertical direction. A number of the first rectangular steel frames 111, the second rectangular steel frames 211, and the third rectangular steel frames 311 are arranged in sequence in the horizontal direction, and the first rectangular steel frames 111, the second rectangular steel frames 211, and the third rectangular steel frames 311 are arranged at intervals. The arrangement order is... the first rectangular steel frame 111, the second rectangular steel frame 211, the third rectangular steel frame 311, the first rectangular steel frame 111, the second rectangular steel frame 211...

[0050] Refer to Figure 5 , after the first rectangular steel bar frame structure 11, the second rectangular steel bar frame structure 21, and the third rectangular steel bar frame structure 31 are installed in a T shape, a rectangular frame structure is formed inside. Four connecting steel bars 5 are穿设在the rectangular frame structure, and the connecting steel bars 5 are fixed at the four corners of the rectangular frame.

[0051] Refer to Figure 3 , Figure 5 , on both side walls of the third steel-concrete composite member 3 facing the first steel-concrete composite member 1 and the second steel-concrete composite member 2, side steel bar frame structures 6 are respectively exposed. The side steel bar frame structure 6 includes a number of side rectangular steel frames 61 arranged in a straight line in the horizontal direction and a number of reinforcing steel bars 62. The side rectangular steel frame 61 is in a "U" shape, and both ends of the side steel bar frame structure 6 are fixed to the side wall of the third steel-concrete composite member 3, and the side rectangular steel frame 61 is vertically arranged.

[0052] Refer to Figure 3 , Figure 5 , the length direction of the reinforcing steel bar 62 is in the horizontal direction. The reinforcing steel bar 62 fixes all the side rectangular steel frames 61 on the same side of the third steel-concrete composite member 3, and the rectangular steel frame encloses the reinforcing steel bar 62 inside.

[0053] Refer to Figure 2 , Figure 3 , the first rectangular steel bar frame structure 11 is located at the upper part of the side end face of the first steel-concrete composite member 1. A first side support cavity 12 for accommodating the side steel bar frame structure 6 is opened at the lower part of the side end face of the first steel-concrete composite member 1. The second rectangular steel bar frame structure 21 is located at the upper part of the side end face of the second steel-concrete composite member. A second side support cavity 22 for accommodating the side steel bar frame structure 6 is opened at the lower part of the side end face of the second steel-concrete composite member 2.

[0054] Refer to Figure 2 , at the bottom of the adjacent end faces of the first steel-concrete composite member 1 and the second steel-concrete composite member 2, a positioning block 7 is integrally formed. The positioning block 7 is located below the first side support cavity 12 and the second side support cavity 22, and the positioning block 7 fits against the side wall of the third steel-concrete composite member 3. When pouring, no concrete will leak between the positioning block 7 and the side wall of the third steel-concrete composite member 3. The vertical upward projection of the positioning block 7 is located in the pouring cavity 4, and the pouring cavity 4 communicates with the first side support cavity 12 and the second side support cavity 22. It should be noted that there is an unclear expression "穿设在" in the original text, and it is tentatively translated as "穿设在" here. You may need to further confirm the accurate meaning and correct translation according to the actual situation.

[0055] Reference Figure 1 , Figure 2 , Figure 3 The T-node connection structure of the prefabricated building wall also includes a casting 8 located in the casting cavity 4, the first side support cavity 12 and the second side support cavity 22, and the first rectangular steel frame structure 11, the second rectangular steel frame structure 21, the third rectangular steel frame structure 31 and the two side steel frame structures 6 are embedded in the casting 8, so that the first steel concrete assembly 1, the second steel concrete assembly 2 and the third steel concrete assembly 3 have good connection firmness and high connection strength.

[0056] The implementation principle of the T-node connection structure of the prefabricated building wall in the embodiment of the present application is as follows: during pouring, only templates need to be set at both ends of the pouring cavity 4, the first side support cavity 12 and the second side support cavity 22, and no additional fixings need to be set to assist in supporting the first steel concrete assembly 1, the second steel concrete assembly 2 and the third steel concrete assembly 3, so that pouring is convenient and construction efficiency is high. At the same time, the "J"-shaped pouring piece 8 has good support, and the pouring piece 8 is tightly connected and fixed to the first steel concrete assembly 1, the second steel concrete assembly 2 and the third steel concrete assembly 3, and has good seismic resistance. High-strength concrete is used to mix high-strength cement for pouring, which improves the strength and anti-seepage effect of the T-type connection structure.

[0057] The present application also discloses a construction method of a prefabricated building wall T-node connection structure, comprising the following steps:

[0058] S1, build the main structure: install the third steel concrete assembly 3 vertically on the ground, with the third rectangular steel frame structure 31 facing upward, slide the first steel concrete assembly 1 and the second steel concrete assembly 2 horizontally and close to the third steel concrete assembly 3, and stop when the positioning block 7 abuts against the side wall of the third steel concrete assembly 3. At this time, the two side steel frame structures 6 are respectively located in the first side support cavity 12 and the second side support cavity 22, and the first rectangular steel frame structure 11, the second rectangular steel frame structure 21 and the third rectangular steel frame structure 31 are located in the casting cavity 4;

[0059] S2, connect the first rectangular steel frame structure 11, the second rectangular steel frame structure 21 and the third rectangular steel frame structure 31. Pass the connecting steel bar 5 through the first rectangular steel frame structure 11, the second rectangular steel frame structure 21 and the third rectangular steel frame structure 31 and weld them. Specifically. Pass the connecting steel bar 5 through all the first rectangular steel frames 111, the second rectangular steel frames 211 and the third rectangular steel frames 311 and weld them, and the connecting steel bar 5 is welded and fixed to the four corners of the rectangular frame structure formed by the first rectangular steel frame 111, the second rectangular steel frame 211 and the third rectangular steel frame 311;

[0060] S3, installing the template, the template closes both ends of the pouring cavity 4 in the horizontal direction;

[0061] S4, pouring concrete, the concrete strength grade is C45-C60, the concrete is poured from the top of the pouring cavity 4, and the concrete first fills the two side support cavities and then fills the pouring cavity 4. After the concrete solidifies, it is demolded and cured.

[0062] The implementation principle of the construction method of a T-type node connection structure of a prefabricated building wall in the embodiment of the present application is as follows: after the first rectangular steel frame 111, the second rectangular steel frame 211 and the third rectangular steel frame 311 are welded, each connecting steel bar 5 connects and fixes all the first rectangular steel frames 111, the second rectangular steel frames 211 and the third rectangular steel frames 311, so that the T-type connection structure has more connection points, improves the connection strength and earthquake resistance, and does not need to set additional auxiliary parts for supporting the first steel concrete assembly 1, the second steel concrete assembly 2 and the third steel concrete assembly 3, so that casting is more convenient. At the same time, high-strength grade concrete is used for casting, so that the T-type connection structure has high strength, strong earthquake resistance and good anti-leakage performance.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A T-joint connection structure of an assembled building wall, comprising a first steel concrete assembly (1), a second steel concrete assembly (2) and a third steel concrete assembly (3), wherein the first steel concrete assembly (1) and the second steel concrete assembly (2) are located on the same horizontal plane, the third steel concrete assembly (3) is perpendicular to the first steel concrete assembly (1), and the first steel concrete assembly (1) and the second steel concrete assembly (2) are symmetrically arranged with respect to the third steel concrete assembly (3), characterized in that: The first steel concrete assembly (1), the second steel concrete assembly (2) and the third steel concrete assembly (3) respectively expose a first rectangular steel frame structure (11), a second rectangular steel frame structure (21) and a third rectangular steel frame structure (31) at adjacent side portions, and a casting cavity (4) for accommodating the first rectangular steel frame structure (11) and the second rectangular steel frame structure (21) is provided between the first steel concrete assembly (1) and the second steel concrete assembly (2); The side walls of the third reinforced concrete assembly (3) facing the first reinforced concrete assembly (1) and the second reinforced concrete assembly (2) are respectively exposed and provided with side steel reinforcement frame structures (6); the first rectangular steel reinforcement frame structure (11) is located at the upper part of the side end surface of the first reinforced concrete assembly (1), and the lower part of the side end surface of the first reinforced concrete assembly (1) is provided with a first side support cavity (12) for accommodating the side steel reinforcement frame structure (6); the second rectangular steel reinforcement frame structure (21) is located at the upper part of the side end surface of the second reinforced concrete assembly, and the lower part of the side end surface of the second reinforced concrete assembly (2) is provided with a second side support cavity (22) for accommodating the side steel reinforcement frame structure (6); After the first rectangular steel frame structure (11), the second rectangular steel frame structure (21) and the third rectangular steel frame structure (31) are installed in a T-shape, a rectangular frame structure is formed inside the structure, and four connecting steel bars (5) are inserted into the rectangular frame structure, and the connecting steel bars (5) are fixed to the four corners of the rectangular frame; A positioning block (7) is integrally formed at the bottom of the adjacent end surfaces of the first steel concrete assembly (1) and the second steel concrete assembly (2); the positioning block (7) is located below the first side support cavity (12) and the second side support cavity (22); the vertical upward projection of the positioning block (7) is located in the casting cavity (4); the casting cavity (4) is connected to the first side support cavity (12) and the second side support cavity (22); It also includes a casting piece (8) located in the casting cavity (4), the first side support cavity (12) and the second side support cavity (22).

2. The T-node connection structure of the assembled building wall according to claim 1 is characterized in that: The first rectangular steel frame structure (11) comprises a plurality of first rectangular steel frames (111) arranged in a straight line along a horizontal direction; the second rectangular steel frame structure (21) comprises a plurality of second rectangular steel frames (211) arranged in a straight line along a horizontal direction; the third rectangular steel frame structure (31) comprises a plurality of third rectangular steel frames (311) arranged in a straight line along a horizontal direction; The first rectangular steel frame (111), the second rectangular steel frame (211) and the third rectangular steel frame (311) are in a vertical direction, the first rectangular steel frame (111), the second rectangular steel frame (211) and the third rectangular steel frame (311) are arranged in sequence in a horizontal direction, and the first rectangular steel frame (111), the second rectangular steel frame (211) and the third rectangular steel frame (311) are arranged at intervals.

3. The T-node connection structure of the assembled building wall according to claim 1 is characterized in that: The side steel bar frame structure (6) comprises a plurality of side rectangular steel frames (61) and a plurality of reinforcing steel bars (62) arranged in a straight line along the horizontal direction, wherein the length direction of the reinforcing steel bars (62) is the horizontal direction, and the reinforcing steel bars (62) fix all the side rectangular steel frames (61) on the same side of the third steel-concrete assembly (3).

4. A construction method for the T-node connection structure of an assembled building wall according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1, building the main structure: vertically installing the third steel concrete assembly (3) on the ground, with the third rectangular steel frame structure (31) facing upwards, sliding the first steel concrete assembly (1) and the second steel concrete assembly (2) horizontally and close to the third steel concrete assembly (3), and stopping when the positioning block (7) abuts against the side wall of the third steel concrete assembly (3). At this time, the two side steel frame structures (6) are respectively located in the first side support cavity (12) and the second side support cavity (22), and the first rectangular steel frame structure (11), the second rectangular steel frame structure (21) and the third rectangular steel frame structure (31) are located in the casting cavity (4); S2, connecting the first rectangular steel frame structure (11), the second rectangular steel frame structure (21) and the third rectangular steel frame structure (31), passing the connecting steel bar (5) through the first rectangular steel frame structure (11), the second rectangular steel frame structure (21) and the third rectangular steel frame structure (31) and welding them, and the connecting steel bar (5) is welded and fixed to the four corners of the rectangular frame; S3, installing the formwork, which closes both ends of the pouring cavity (4) in the horizontal direction; S4, pouring concrete. Concrete is poured into the pouring cavity (4) from the top. The concrete first fills the first side support cavity (12) and the second side support cavity (22), and then fills the pouring cavity (4). After the concrete solidifies, it is demoulded and cured.

5. A construction method for the T-node connection structure of an assembled building wall according to claim 2, characterized in that: The following steps are involved: S1, building the main structure: vertically installing the third steel concrete assembly (3) on the ground, with the third rectangular steel frame structure (31) facing upwards, sliding the first steel concrete assembly (1) and the second steel concrete assembly (2) horizontally and close to the third steel concrete assembly (3), and stopping when the positioning block (7) abuts against the side wall of the third steel concrete assembly (3). At this time, the two side steel frame structures (6) are respectively located in the first side support cavity (12) and the second side support cavity (22), and the first rectangular steel frame structure (11), the second rectangular steel frame structure (21) and the third rectangular steel frame structure (31) are located in the casting cavity (4); S2, connecting the first rectangular steel frame structure (11), the second rectangular steel frame structure (21) and the third rectangular steel frame structure (31), passing the connecting steel bar (5) through all the first rectangular steel frame (111), the second rectangular steel frame (211) and the third rectangular steel frame (311) and welding them, and the connecting steel bar (5) is welded and fixed to the four corners of the rectangular frame structure formed by the first rectangular steel frame (111), the second rectangular steel frame (211) and the third rectangular steel frame (311); S3, installing the formwork, which closes both ends of the pouring cavity (4) in the horizontal direction; S4, pouring concrete. The concrete is poured from the top of the pouring cavity (4), and the concrete first fills the two side support cavities and then fills the pouring cavity (4). After the concrete solidifies, it is demoulded and cured.

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