Prefabricated beam column mounting structure and construction method thereof

Abstract

The invention relates to the technical field of prefabricated beam installation, in particular to a prefabricated beam column installation structure and a construction method thereof. The prefabricated beam column mounting structure comprises a formwork assembly, a prefabricated beam and two prefabricated columns, the formwork assembly comprises formwork single pieces located at the two ends of the prefabricated beam and used for connecting the prefabricated beam and the prefabricated columns, each formwork single piece comprises a first module, a second module and a fastener, the first module is connected with the prefabricated beam, and the second module is connected with the second module. The second module is connected with the prefabricated column, and the first module and the second module are connected through a fastener; the first modules and the second modules in the two sets of formwork single pieces located at the two ends of the prefabricated beam are defined to form two independent pouring spaces correspondingly, and connecting parts for connecting the prefabricated beam and the prefabricated column are formed in the pouring spaces in a pouring mode. Through butt joint of the first die set and the second die set, the construction procedures of positioning adjustment, independent supporting and the like are reduced, the precast beam can be rapidly hoisted in place, and the turnover rate of construction auxiliary materials such as hoisting equipment and the like is increased.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated beam installation, and in particular to a prefabricated beam-column installation structure and a construction method thereof. Background Art

[0002] At present, the construction industry has gradually entered a stage of rapid development of modern industries, and prefabricated buildings have become an important part of the transformation and upgrading of the construction industry.

[0003] However, in the process of prefabricated construction, the hoisting positioning and node connection of precast concrete beams are indispensable links in the construction. Traditional hoisting operations are mostly based on line positioning and steel bar anchoring into supports. This method has problems such as easy interference of longitudinal reinforcement in cast-in-place nodes, many positioning measures for the components themselves, low utilization rate of hoisting equipment, and high overall construction cost. Summary of the invention

[0004] The object of the present invention is to provide a prefabricated beam-column installation structure with simple structure and convenient assembly and a construction method thereof. The specific technical scheme is as follows:

[0005] The present invention provides a prefabricated beam-column installation structure, comprising a template assembly, a prefabricated beam and two prefabricated columns, wherein the template assembly comprises a template single piece located at both ends of the prefabricated beam and used to connect the prefabricated beam and the prefabricated column, wherein the template single piece comprises a first module group, a second module group and a fastener, wherein the first module group is connected to the prefabricated beam, the second module group is connected to the prefabricated column, and the first module group and the second module group are connected via fasteners; the first module group and the second module group in the two groups of template single pieces located at both ends of the prefabricated beam respectively enclose two independent casting spaces, and casting is performed in the casting space to form a connecting portion connecting the prefabricated beam and the prefabricated column.

[0006] Optionally, the first mold set includes a first standard template and a first wedge-shaped template connected to each other, and the second mold set includes a second standard template and a second wedge-shaped template connected to each other;

[0007] The first standard template is connected to the prefabricated beam, and the second standard template is connected to the prefabricated column; the inclined surface in the first wedge-shaped template can fit with the inclined surface in the second wedge-shaped template and are connected by the fasteners.

[0008] Optionally, a plurality of spaced-apart mounting holes are provided on the inclined surface in the first wedge-shaped template and the inclined surface in the second wedge-shaped template, and the fasteners pass through the mounting holes on the first wedge-shaped template and the second wedge-shaped template in sequence to connect the first module group and the second module group.

[0009] Optionally, the prefabricated column comprises a vertical portion and a horizontal portion connected to each other, and the horizontal portion of the prefabricated column is connected to a standard template corresponding to the second module;

[0010] The first standard template and the second standard template are both provided with mounting grooves, the end of the precast beam is arranged in the mounting groove of the first standard template, and the horizontal portion is arranged in the mounting groove of the second standard template; the first wedge-shaped template and the second wedge-shaped template are both provided with casting grooves, the mounting grooves and the casting grooves in the first mold set and the second mold set are interconnected, and the casting grooves of the first wedge-shaped template and the second wedge-shaped template form the casting space;

[0011] The cross section of the casting groove, the cross section of the installation groove and the cross section of the horizontal portion which are parallel to the end face of the precast beam in the length direction all match the shape of the end face of the precast beam in the length direction.

[0012] Optionally, the prefabricated column further comprises a vertical steel bar frame and a first horizontal steel bar frame connected to each other, the vertical steel bar frame is arranged in the vertical portion of the prefabricated column, the first horizontal steel bar frame is arranged in the horizontal portion of the prefabricated column, and the first horizontal steel bar frame is partially exposed from the horizontal portion of the prefabricated column and extends into the casting space;

[0013] A second horizontal steel bar frame is provided in the precast beam, and both ends of the second horizontal steel bar frame are exposed from the precast beam and extend into the casting space, and are staggered with the first horizontal steel bar frame in the corresponding casting space.

[0014] The present invention also provides a prefabricated beam-column installation structure construction method, which is used for the construction of the prefabricated beam-column installation structure as described above, and comprises the following steps:

[0015] S1: Assembling a prefabricated column and a first module to form a first component, specifically: connecting a horizontal portion of the prefabricated column and the first module to form the first component;

[0016] S2: Assembling the prefabricated beam and the second module to form a second component, specifically: connecting a second module to both ends of the prefabricated beam;

[0017] S3: connecting the second component between the two first components, and forming casting spaces at the connection between the second component and the two first components;

[0018] S4: pouring high-performance concrete into the pouring space until the high-performance concrete fills the entire pouring space, and forming a connection part after the high-performance concrete solidifies. The two ends of the precast beam are respectively connected to the two precast columns through the connection part to form a precast beam-column installation structure.

[0019] Optionally, before S1, the step further includes:

[0020] Internal threaded sleeves are embedded in the precast columns and precast beams respectively.

[0021] Optionally, the S3 includes:

[0022] S3.1. Use a lifting device to move the second component between the two first components, and align the first modules at both ends of the precast beam with the second modules on the two precast columns respectively;

[0023] S3.2, using fasteners to respectively connect the first modules at both ends of the precast beam and the second modules on the two precast columns;

[0024] S3.3. Remove the second component from the lifting equipment and remove the lifting equipment.

[0025] Optionally, in S4, after pouring is completed, the concrete is left to stand for 20 hours to 30 hours until the high performance concrete reaches 60% of the design strength to form a connection portion;

[0026] In the above S4, before forming the prefabricated beam-column installation structure, the process further includes:

[0027] Remove the formwork units between the precast beams and precast columns;

[0028] Level the connection.

[0029] Optionally, when connecting a single formwork piece to a prefabricated column or prefabricated beam, high-strength bolts and gaskets are used for connection; when connecting the first standard formwork to the first wedge-shaped formwork and the second standard formwork to the second wedge-shaped formwork, quick-release bolts and latches are used for connection respectively.

[0030] By applying the technical solution of the present invention, a first module is respectively arranged at both ends of the precast beam, and a second module is respectively arranged on the two precast columns. When installing the precast beam, it is only necessary to hoist the precast beam between the two precast columns, and then align the first modules at both ends of the precast beam with the second modules on the two precast columns to realize the rapid positioning of the precast beam, and fasteners are used to respectively connect the first modules at both ends of the precast beam and the second modules on the two precast columns to form a casting space between the precast beam and the two precast columns, and cast in the casting space to form a connection between the precast beam and the precast columns. The connection part of the precast column is formed so that the precast beam and the precast column form a whole with a simple structure. The docking of the first module and the second module reduces the construction processes such as positioning adjustment and independent support, and can realize the rapid lifting of the precast beam into place, improve the turnover rate of construction auxiliary materials such as lifting equipment, effectively improve the on-site construction efficiency, and is beneficial to saving construction costs and improving civilized construction on site; it can realize the rapid positioning of the precast beam and reduce the workload of cast-in-place during the construction process, which can not only ensure the connection stability between the precast beam and the precast column, but also help to improve the construction efficiency.

[0031] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 is a structural schematic diagram of a prefabricated beam-column installation structure before casting in an embodiment of the present invention;

[0034] Figure 2 is a schematic diagram of assembling prefabricated beams and prefabricated columns in an embodiment of the present invention;

[0035] Figure 3 is an assembly schematic diagram of a template assembly in an embodiment of the present invention;

[0036] Figure 4 is an assembly schematic diagram of a first component in an embodiment of the present invention;

[0037] Figure 5 It is an assembly diagram of the second component in the embodiment of the present invention.

[0038] Description of Figure Numbers:

[0039] 1 Single formwork, 1.1 First formwork, 1.1.1 First standard formwork, 1.1.2 First wedge-shaped formwork, 1.2 Second formwork, 1.2.1 Second standard formwork, 1.2.2 Second wedge-shaped formwork, 1.3 Fasteners, 1.4 Mounting holes, 1.5 Casting troughs, 1.6 Mounting troughs, 2 Precast beams, 2.1 Second horizontal steel frame, 3 Precast columns, 3.1 Vertical portion, 3.2 Horizontal portion, 3.3 Vertical steel frame, 3.4 First horizontal steel frame, 4 Casting space. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0041] like Figure 1 to Figure 2As shown, the precast beam-column installation structure includes a template assembly, a precast beam 2 and two precast columns 3. The template assembly includes a template unit 1 located at both ends of the precast beam 2 and used to connect the precast beam 2 and the precast column 3. The template unit 1 includes a first module group 1.1, a second module 1.2 and a fastener 1.3. The first module group 1.1 is connected to the precast beam 2, the second module 1.2 is connected to the precast column 3, and the first module 1.1 and the second module 1.2 are connected by the fastener 1.3; the first module 1.1 and the second module 1.2 in the two groups of template units 1 located at both ends of the precast beam 2 respectively enclose two independent casting spaces 4, and the casting space 4 is cast to form a connecting portion connecting the precast beam 2 and the precast column 3. In actual operation, by respectively setting a first module 1.1 at both ends of the precast beam 2 and respectively setting a second module 1.2 on the two precast columns 3, when installing the precast beam 2, it is only necessary to hoist the precast beam 2 between the two precast columns 3, and then align the first modules 1.1 at both ends of the precast beam 2 with the second modules 1.2 on the two precast columns 3 to achieve rapid positioning of the precast beam 2, and use fasteners 1.3 to respectively connect the first modules 1.1 at both ends of the precast beam 2 and the second modules 1.2 on the two precast columns 3, so as to form a casting space 4 between the precast beam 2 and the two precast columns 3, and cast the casting space 4 in A connection part connecting the precast beam 2 and the precast column 3 is formed, so that the precast beam 2 and the precast column 3 form a whole, the structure is simple, and the docking of the first module 1.1 and the second module reduces the construction processes such as positioning adjustment and independent support, and can realize the rapid lifting of the precast beam 2 into place, improve the turnover rate of construction auxiliary materials such as lifting equipment, effectively improve the on-site construction efficiency, and is conducive to saving construction costs and improving civilized construction on site; it can realize the rapid positioning of the precast beam 2, reduce the amount of cast-in-place work during the construction process, can ensure the connection stability between the precast beam 2 and the precast column 3, and is conducive to improving construction efficiency.

[0042] See also Figure 3Based on the above embodiment, the first module 1.1 includes a first standard template 1.1.1 and a first wedge-shaped template 1.1.2 connected to each other, and the second module 1.2 includes a second standard template 1.2.1 and a second wedge-shaped template 1.2.2 connected to each other; the first standard template 1.1.1 is connected to the prefabricated beam 2, and the second standard template 1.2.1 is connected to the prefabricated column 3; the inclined surface in the first wedge-shaped template 1.1.2 can fit with the inclined surface in the second wedge-shaped template 1.2.2, and are connected by fasteners 1.3. Internal threaded sleeves are embedded in the precast beam 2 and the precast column 3. A connecting piece is used to pass through the first standard template 1.1.1 and threadedly connect with the internal threaded sleeve on the precast beam 2 to connect the first module 1.1 and the precast beam 2. Similarly, a connecting knot is used to pass through the second standard template 1.2.1 and threadedly connect with the internal threaded sleeve on the precast column 3 to connect the second module 1.2 and the precast column 3. When connecting the first module 1.1 and the second module 1.2, it is only necessary to fit the inclined surface of the first wedge-shaped template 1.1.2 with the inclined surface of the second wedge-shaped template 1.2.2 to achieve the positioning of the precast beam 2, and then the first wedge-shaped template 1.1.2 and the second wedge-shaped template 1.2.2 are connected by fasteners 1.3 to fix the precast beam 2 between the two precast columns 3. The operation is simple and reduces the processes of positioning adjustment, independent support, etc. After the precast beam 2 is fixed between the two precast columns 3, the lifting equipment can be withdrawn to improve the turnover rate of the lifting equipment.

[0043] The inclined surface of the first wedge-shaped template 1.1.2 and the inclined surface of the second wedge-shaped template 1.2.2 are both provided with a plurality of installation holes 1.4 arranged at intervals, and the fasteners 1.3 sequentially pass through the installation holes 1.4 on the first wedge-shaped template 1.1.2 and the second wedge-shaped template 1.2.2 to connect the first module 1.1 and the second module 1.2. When connecting the first wedge-shaped template 1.1.2 and the second wedge-shaped template 1.2.2, it is only necessary to align the installation holes 1.4 on the first wedge-shaped template 1.1.2 and the second wedge-shaped template 1.2.2, and then use the fasteners 1.3 to sequentially pass through the installation holes 1.4 on the first wedge-shaped template 1.1.2 and the second wedge-shaped template 1.2.2, so as to connect the first module 1.1 and the second module 1.2, thereby realizing the rapid positioning of the precast beam 2. Preferably, the number of the installation holes 1.4 on the first wedge-shaped template 1.1.2 and the second wedge-shaped template 1.2.2 is the same and is arranged one by one.

[0044] Furthermore, the prefabricated column 3 comprises a vertical portion 3.1 and a horizontal portion 3.2 connected to each other, the horizontal portion 3.2 of the prefabricated column 3 is connected to the standard template corresponding to the second module 1.2, and the cross section of the casting groove 1.5 parallel to the end face of the length direction of the prefabricated beam 2 and the cross section of the horizontal portion 3.2 match the shape of the end face of the length direction of the prefabricated beam 2; the first standard template 1.1.1 and the second standard template 1.2.1 are both provided with mounting grooves, the end of the prefabricated beam 2 is arranged in the mounting groove of the first standard template 1.1.1, and the horizontal portion 3.2 is arranged in the mounting groove of the second standard template 1.2.1. In the installation groove of the quasi-formwork 1.2.1; casting grooves 1.5 are opened on the first wedge-shaped formwork 1.1.2 and the second wedge-shaped formwork 1.2.2, each installation groove and casting groove 1.5 in the first module 1.1 and the second module 1.2 are interconnected, and the casting grooves 1.5 of the first wedge-shaped formwork 1.1.2 and the second wedge-shaped formwork 1.2.2 form a casting space 4; and the cross-section of the casting groove 1.5 parallel to the end face of the length direction of the precast beam 2, the cross-section of the installation groove and the cross-section of the horizontal part 3.2 all match the shape of the end face of the length direction of the precast beam 2. The horizontal portion 3.2 of the precast column 3 is arranged in the installation groove and connected to the corresponding second standard template 1.2.1 to improve the connection strength between the precast column 3 and the first module 1.1. Similarly, the end of the precast beam 2 is arranged in the installation groove and connected to the corresponding first standard template 1.1.1 to improve the connection strength between the precast beam 2 and the second module 1.2, which is beneficial to improve the stability of the overall structure; the cross-section of the casting groove 1.5 parallel to the end face of the length direction of the precast beam 2, the cross-section of the installation groove and the cross-section of the horizontal portion 3.2 all match the end face shape of the length direction of the precast beam 2, thereby ensuring that the connection formed by casting has a smooth transition with the precast columns 3 and precast beams 2 at both ends to improve the overall aesthetics.

[0045] See also Figures 3 to 5 The prefabricated column 3 also includes a connected vertical steel bar frame 3.3 and a first horizontal steel bar frame 3.4. The vertical steel bar frame 3.3 is arranged in the vertical part 3.1 of the prefabricated column 3, and the first horizontal steel bar frame 3.4 is arranged in the horizontal part 3.2 of the prefabricated column 3, and the first horizontal steel bar frame 3.4 is partially exposed from the horizontal part 3.2 of the prefabricated column 3 and extends into the casting space 4; a second horizontal steel bar frame 2.1 is arranged in the prefabricated beam 2, and both ends of the second horizontal steel bar frame 2.1 are exposed from the prefabricated beam 2 and extend into the casting space 4, and are staggered with the first horizontal steel bar frame 3.4 in the corresponding casting space 4. Both the precast columns 3 and the precast beams 2 are provided with steel bars frames to improve the structural strength, and the first horizontal steel bars frames 3.4 and the second horizontal steel bars frames 2.1 of the precast columns 3 and the precast beams 2 extending into the casting space 4 are staggered to avoid mutual interference, and can increase the structural strength of the connection formed after casting and the connection strength with the precast columns 3 and the precast beams 2, effectively improving the connection stability between the precast beams 2 and the precast columns 3.

[0046] In addition, the formwork piece 1 can meet the installation requirements of precast beams 2 with different cross-sectional sizes through modular design, and the quick-release bolts and pins can realize the rapid disassembly and assembly of the formwork piece 1 components; a lap length a must be reserved between the formwork piece 1 and the precast beam 2 to reliably close the casting space.

[0047] The present invention also provides a prefabricated beam-column installation structure construction method, which is used for the construction of the prefabricated beam-column installation structure as described above, and comprises the following steps:

[0048] Internally threaded sleeves are embedded in the precast column 3 and the precast beam 2, respectively. Specifically, a plurality of internally threaded sleeves are embedded in the connection between the precast beam 2 and the first standard formwork 1.1.1 and in the connection between the precast column 3 and the second standard formwork 1.2.1.

[0049] Both the precast beam 2 and the precast column 2 are precast parts that are made by placing the steel bars in a customized mold and pouring concrete after the steel bars are arranged and tied in a component processing plant in accordance with the structural design requirements. The second horizontal steel bar frame 2.1 extends out of the left and right end faces by a specified length, and the side has an embedded internal threaded sleeve for connection with the formwork piece 1; the first horizontal steel bar frame 3.4 of the precast column 2 extends out of the end face by a specified length, and the side has an embedded internal threaded sleeve for connection with the formwork piece 1.

[0050] S1: Assembling the prefabricated column 3 and the first module 1.1 to form a first component, specifically: connecting the horizontal portion 3.2 of the prefabricated column 3 and the first module 1.1 to form the first component;

[0051] S2: Assembling the prefabricated beam 2 and the second module 1.2 to form a second component, specifically: connecting a second module 1.2 at both ends of the prefabricated beam 2;

[0052] S3: Connect the second component between the two first components, and form a casting space 4 at the connection between the second component and the two first components;

[0053] S3 includes:

[0054] S3.1, use a lifting device to move the second component to between the two first components, and align the first modules 1.1 at both ends of the precast beam 2 with the second modules 1.2 on the two precast columns 3 respectively;

[0055] S3.2, using fasteners 1.3 to respectively connect the first modules 1.1 at both ends of the precast beam 2 and the second modules 1.2 on the two precast columns 3;

[0056] S3.3. Remove the second component from the lifting equipment and remove the lifting equipment.

[0057] S4: Pour high-performance concrete into the pouring space 4 until the high-performance concrete fills the entire pouring space 4. After the high-performance concrete solidifies, a connection part is formed. The two ends of the precast beam 2 are respectively connected to the two precast columns 3 through the connection part to form a precast beam-column installation structure; wherein the high-performance concrete can be replaced by high-performance cementitious materials, special cementitious materials or high-strength cementitious materials.

[0058] In S4, after pouring is completed, it is left to stand for 20h-30h until the high performance concrete reaches 60% of the design strength to form a connection;

[0059] In S4, before forming the prefabricated beam-column installation structure, the process also includes:

[0060] Dismantle the formwork unit between the precast beam 2 and the precast column 3;

[0061] Level the connection.

[0062] The template piece may be removed or not. When the template piece is not removed, it can reinforce the connection part. In addition, the connection part is leveled to make the outer surface of the connection part smooth to ensure the aesthetics.

[0063] When connecting the formwork unit 1 with the prefabricated column 3 or the prefabricated beam 2, high-strength bolts and gaskets are used for connection; when connecting the first standard formwork 1.1.1 with the first wedge-shaped formwork 1.1.2 and the second standard formwork 1.2.1 and the second wedge-shaped formwork 1.2.2, quick-release bolts and pins are used for connection. The standard formwork and wedge-shaped formwork in the formwork unit 1 are all made into a series of standard formworks in accordance with the design requirements of the connection nodes by cutting, assembling, welding, machining and other processes in the steel structure processing plant. The formworks are spliced ​​as required by quick-release bolts to meet the installation requirements. The quick-release bolt assembly includes quick-release bolts, wedge-shaped pins, bolts, and adjustment gaskets. Through orderly assembly, the connection and fastening between the formworks are realized, which not only ensures the connection strength between the formwork unit 1 and the prefabricated beam 2 and the prefabricated column 3, but also facilitates disassembly, which is conducive to improving the disassembly efficiency of the formwork unit 1. Among them, the high-strength bolts can be replaced by quick-release pins, or the high-strength bolts and gaskets can be modified into a set of fastening components.

[0064] The precast beam-column installation structure construction method can quickly close the connection structural area of ​​precast beams 2 with different cross-sectional sizes; and the connection part is formed by casting high-performance concrete in situ, which shortens the anchorage length of the steel bars and reduces the workload of casting in situ; the installation of the precast beam 2 is achieved with less support or no support, reducing construction measures; and the precast beam 2 can be quickly unhooked during hoisting to reduce the long-term occupation of the hoisting equipment.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A prefabricated beam-column installation structure, characterized in that: The prefabricated beam-column installation structure comprises a template assembly, a prefabricated beam (2) and two prefabricated columns (3); the template assembly comprises a template unit (1) located at both ends of the prefabricated beam (2) and used to connect the prefabricated beam (2) and the prefabricated column (3); the template unit (1) comprises a first module group (1.1), a second module group (1.2) and a fastener (1.3); the first module group (1.1) is connected to the prefabricated beam (2), the second module group (1.2) is connected to the prefabricated column (3), and the first module group (1.1) and the second module group (1.2) are connected via the fastener (1.3); the first module group (1.1) and the second module group (1.2) in the two groups of template units (1) located at both ends of the prefabricated beam (2) respectively enclose two independent casting spaces (4); the casting spaces (4) are cast to form a connecting portion connecting the prefabricated beam (2) and the prefabricated column (3).

2. The prefabricated beam-column installation structure according to claim 1, characterized in that: The first module (1.1) comprises a first standard template (1.1.1) and a first wedge-shaped template (1.1.2) connected to each other, and the second module (1.2) comprises a second standard template (1.2.1) and a second wedge-shaped template (1.2.2) connected to each other; The first standard formwork (1.1.1) is connected to the prefabricated beam (2), and the second standard formwork (1.2.1) is connected to the prefabricated column (3); the inclined surface in the first wedge-shaped formwork (1.1.2) can fit with the inclined surface in the second wedge-shaped formwork (1.2.2), and are connected via the fastener (1.3).

3. The prefabricated beam-column installation structure according to claim 2, characterized in that: A plurality of installation holes (1.4) arranged at intervals are provided on the inclined surface of the first wedge-shaped template (1.1.2) and the inclined surface of the second wedge-shaped template (1.2.2); the fasteners (1.3) pass through the installation holes (1.4) on the first wedge-shaped template (1.1.2) and the second wedge-shaped template (1.2.2) in sequence to connect the first module (1.1) and the second module (1.2).

4. The prefabricated beam-column installation structure according to claim 3, characterized in that: The prefabricated column (3) comprises a vertical portion (3.1) and a horizontal portion (3.2) connected to each other, and the horizontal portion (3.2) of the prefabricated column (3) is connected to a standard template corresponding to the second module (1.2); The first standard formwork (1.1.1) and the second standard formwork (1.2.1) are both provided with mounting grooves (1.6), the end of the precast beam (2) is arranged in the mounting groove (1.6) of the first standard formwork (1.1.1), and the horizontal portion (3.2) is arranged in the mounting groove (1.6) of the second standard formwork (1.2.1); the first wedge-shaped formwork (1.1.2) and the second wedge-shaped formwork (1.2.2) are both provided with casting grooves (1.5), the mounting grooves (1.6) and the casting grooves (1.5) in the first mold group (1.1) and the second mold group (1.2) are interconnected, and the casting grooves (1.5) of the first wedge-shaped formwork (1.1.2) and the second wedge-shaped formwork (1.2.2) form the casting space (4); Furthermore, the cross-section of the casting groove (1.5), the cross-section of the installation groove (1.6) and the cross-section of the horizontal portion (3.2) parallel to the end face of the precast beam (2) in the length direction all match the shape of the end face of the precast beam (2) in the length direction.

5. The prefabricated beam-column installation structure according to claim 4, characterized in that: The prefabricated column (3) further comprises a vertical steel bar frame (3.3) and a first horizontal steel bar frame (3.4) connected to each other, wherein the vertical steel bar frame (3.3) is arranged in the vertical portion (3.1) of the prefabricated column (3), and the first horizontal steel bar frame (3.4) is arranged in the horizontal portion (3.2) of the prefabricated column (3), and a portion of the first horizontal steel bar frame (3.4) is exposed from the horizontal portion (3.2) of the prefabricated column (3) and extends into the casting space (4); A second horizontal steel bar frame (2.1) is provided in the precast beam (2), and both ends of the second horizontal steel bar frame (2.1) are exposed from the precast beam (2) and extend into the casting space (4), and are staggered with the first horizontal steel bar frame (3.4) in the corresponding casting space (4).

6. A method for constructing a prefabricated beam-column installation structure, used for constructing the prefabricated beam-column installation structure according to claim 5, characterized in that: The steps include: S1: Assembling the prefabricated column (3) and the first module (1.1) to form a first component, specifically: connecting the horizontal portion (3.2) of the prefabricated column (3) and the first module (1.1) to form the first component; S2: assembling the prefabricated beam (2) and the second module (1.2) to form a second component, specifically: connecting a second module (1.2) to both ends of the prefabricated beam (2); S3: connecting the second component between the two first components, and forming casting spaces (4) at the connection points between the second component and the two first components; S4: high-performance concrete is poured into the pouring space (4) until the high-performance concrete fills the entire pouring space (4); a connection portion is formed after the high-performance concrete solidifies; and both ends of the precast beam (2) are respectively connected to the two precast columns (3) through the connection portion to form a precast beam-column installation structure.

7. The construction method of the prefabricated beam-column installation structure according to claim 6, characterized in that: The S1 also includes: Internal threaded sleeves are pre-buried in the prefabricated column (3) and the prefabricated beam (2) respectively.

8. The construction method of the prefabricated beam-column installation structure according to claim 6, characterized in that: The S3 includes: S3.

1. Use a lifting device to move the second component between the two first components, and align the first mold groups (1.1) at both ends of the precast beam (2) with the second mold groups (1.2) on the two precast columns (3); S3.2, using fasteners (1.3) to respectively connect the first module (1.1) at both ends of the prefabricated beam (2) and the second module (1.2) on the two prefabricated columns (3); S3.

3. Remove the second component from the lifting equipment and remove the lifting equipment.

9. The construction method of the prefabricated beam-column installation structure according to claim 6, characterized in that: In S4, after pouring is completed, the concrete is left to stand for 20 hours to 30 hours until the high performance concrete reaches 60% of the design strength to form a connection portion; In the above S4, before forming the prefabricated beam-column installation structure, the process further includes: Removing the formwork unit (1) between the precast beam (2) and the precast column (3); Level the connection.

10. The construction method of the prefabricated beam-column installation structure according to claim 9, characterized in that: When connecting a single formwork piece (1) and a prefabricated column (3) or a prefabricated beam (2), high-strength bolts and gaskets are used for connection; when connecting a first standard formwork (1.1.1) and a first wedge-shaped formwork (1.1.2) and a second standard formwork (1.2.1) and a second wedge-shaped formwork (1.2.2), quick-release bolts and latches are used for connection respectively.

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