Fabricated concrete precast column penetrating type connecting joint and construction method

Abstract

The application relates to a fabricated concrete prefabricated column penetrating type connecting joint, which is used for the connection of upper and lower prefabricated columns and comprises a first connecting mechanism connected to the lower end of the upper prefabricated column and a second connecting mechanism connected to the upper end of the lower prefabricated column; the first connecting mechanism comprises an upper connecting plate and an upper joint plate fixed vertically at the lower part of the upper connecting plate, and the middle part of the lower end of the upper joint plate is provided with an upper inserting interface; the second connecting mechanism comprises a lower connecting plate and a lower joint plate fixed vertically at the upper part of the lower connecting plate, and the middle part of the upper end of the lower joint plate is provided with a lower inserting interface; the first connecting mechanism and the second connecting mechanism are connected to the upper prefabricated column and the lower prefabricated column respectively, the connection of the upper and lower prefabricated columns is changed into the connection of the first connecting mechanism and the second connecting mechanism, the first connecting mechanism and the second connecting mechanism are penetratingly welded, the connecting complexity between the prefabricated columns can be reduced while the connecting precision is ensured, and the construction efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, in particular to a prefabricated concrete precast column plug-in connection node and a construction method. BACKGROUND

[0002] With the steady growth of the economy, the pace of urbanization is accelerating, and the replacement of buildings is a crucial step in the process of urbanization. The construction demand, especially the residential construction demand, will further accelerate the development pace of prefabricated buildings. Although traditional cast-in-place components have good seismic performance and integrity, they are widely used in actual engineering applications. However, a large amount of manpower and material resources are required during on-site construction, and dust pollution and a large amount of noise are also generated during construction. The construction period is long and the safety cannot be effectively guaranteed. This traditional building mode has serious resource waste and other phenomena, which does not meet the green, low-carbon and environmentally friendly concept. Prefabricated structures can solve the above problems. The advantages of prefabricated structures are short construction period, small site interference, more green and environmentally friendly, reliable quality of component batch production, etc., and have good application prospects.

[0003] The node connection of the prefabricated concrete frame structure is usually the key to the precise docking of the entire frame structure. The existing prefabricated concrete frame connection node is a structure of first socket and then bolted, which not only has high requirements for the manufacturing precision of the prefabricated column docking end, but also has the problems of complex connection process and low construction efficiency. SUMMARY

[0004] The present application aims to overcome the defects of the prior art and provide a prefabricated concrete precast column plug-in connection node and a construction method, which solves the problem of complex and low efficiency of the prefabricated column docking process in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides a prefabricated concrete precast column plug-in connection node for connecting two sections of prefabricated columns, comprising a first connection mechanism connected to the lower end of the upper section of the prefabricated column and a second connection mechanism connected to the upper end of the lower section of the prefabricated column.

[0006] The first connection mechanism comprises an upper connecting plate and an upper node plate vertically fixed to the lower part of the upper connecting plate, and an upper plug-in interface is formed in the middle of the lower end of the upper node plate.

[0007] The second connection mechanism comprises a lower connecting plate and a lower node plate vertically fixed to the upper part of the lower connecting plate, and a lower plug-in interface is formed in the middle of the upper end of the lower node plate.

[0008] The upper node plate and the lower node plate are inserted and spliced by cooperation of the upper insertion interface and the lower insertion interface, and the inserted and spliced part of the upper node plate and the lower node plate is welded and fixed, and meanwhile, the lower end of the upper node plate is welded and fixed with the lower connecting plate, and the upper end of the lower node plate is welded and fixed with the upper connecting plate.

[0009] The upper node plate is an I-shaped plate, comprising a first web plate and first wing plates connected to both ends of the first web plate respectively, the upper insertion interface is arranged in the middle of the lower end of the first web plate, the opening width of the upper insertion interface is the same as the thickness of the first web plate, and the opening height of the upper insertion interface is half of the height of the first web plate.

[0010] The lower node plate is an I-shaped plate, comprising a second web plate and second wing plates connected to both ends of the second web plate respectively, the lower insertion interface is arranged in the middle of the upper end of the second web plate, the opening width of the lower insertion interface is the same as the thickness of the second web plate, and the opening height of the lower insertion interface is half of the height of the second web plate.

[0011] The upper node plate and the lower node plate are completely identical in structure.

[0012] By adopting the technical scheme, the first connecting mechanism and the second connecting mechanism are connected by cooperation of the upper node plate in the first connecting mechanism and the lower node plate in the second connecting mechanism, and the connection between the first connecting mechanism and the second connecting mechanism is completed after the upper node plate and the lower node plate are inserted and spliced, the lower end of the upper node plate is welded and fixed with the lower connecting plate, and the upper end of the lower node plate is welded and fixed with the upper connecting plate, thereby forming the connection node of the upper precast column and the lower precast column, and simultaneously realizing the connection between the upper precast column and the lower precast column, which not only reduces the connection complexity between the precast columns, but also greatly improves the construction efficiency.

[0013] When the upper node plate and the lower node plate are inserted and spliced, the upper insertion interface on the first web plate in the upper node plate can be completely buckled on the second web plate in the lower node plate, and the lower insertion interface on the second web plate in the lower node plate can be completely buckled on the first web plate in the upper node plate, thereby maximizing the position that can be welded, increasing the stability between the upper node plate and the lower node plate after subsequent welding, and being beneficial to increasing the stability of the entire connection node; the upper insertion interface on the first web plate and the lower insertion interface on the second web plate are separately and accurately matched, which can not only reduce the connection difficulty, but also ensure the accuracy after connection; the first wing plate and the second wing plate can assist in increasing the support stability and the weldable area, and the connection stability between the first connecting mechanism and the second connecting mechanism can be further increased after subsequent welding of the corresponding joint positions.

[0014] Further, the first connecting mechanism further comprises a plurality of upper longitudinal bars and upper anchor bars fixed vertically on the upper portion of the upper connecting plate, and the upper longitudinal bars and the upper anchor bars are pre-buried in the interior of the upper segmental precast column.

[0015] The second connecting mechanism further comprises a plurality of lower longitudinal bars and lower anchor bars fixed vertically on the lower portion of the lower connecting plate, and the lower longitudinal bars and the lower anchor bars are pre-buried in the interior of the lower segmental precast column.

[0016] By adopting the technical scheme, the upper longitudinal bars can be directly connected with the longitudinal bars of the steel reinforcement cage of the upper segmental precast column during the prefabrication of the upper segmental precast column, and the upper anchor bars can be integrally fixed to the interior of the upper segmental precast column during the consolidation and molding of the upper segmental precast column, so as to increase the connection strength between the first connecting mechanism and the upper segmental precast column; the lower longitudinal bars can be directly connected with the longitudinal bars of the steel reinforcement cage of the lower segmental precast column during the prefabrication of the lower segmental precast column, and the lower anchor bars can be integrally fixed to the interior of the lower segmental precast column during the consolidation and molding of the lower segmental precast column, so as to increase the connection strength between the second connecting mechanism and the lower segmental precast column.

[0017] Further, the first connecting mechanism further comprises a plurality of first plug welding holes formed in the upper portion of the upper connecting plate, and the lower ends of the upper longitudinal bars and the upper anchor bars are respectively inserted into and welded in the corresponding first plug welding holes;

[0018] The second connecting mechanism further comprises a plurality of second plug welding holes formed in the lower portion of the lower connecting plate, and the upper ends of the lower longitudinal bars and the lower anchor bars are respectively inserted into and welded in the corresponding second plug welding holes.

[0019] By adopting the technical scheme, the first plug welding holes enable the lower ends of the upper longitudinal bars and the upper anchor bars to be inserted into the interior of the upper connecting plate, and welding can increase the connection strength of the upper longitudinal bars and the upper anchor bars on the upper connecting plate; the second plug welding holes enable the upper ends of the lower longitudinal bars and the lower anchor bars to be inserted into the interior of the lower connecting plate, and welding can increase the connection strength of the lower longitudinal bars and the lower anchor bars on the lower connecting plate.

[0020] Further, the upper node plate is located at the middle portion of the lower end of the upper connecting plate, the lower node plate is located at the middle portion of the upper end of the lower connecting plate, and the upper node plate and the lower node plate are perpendicular to each other.

[0021] By adopting the technical scheme, the central arrangement of the upper node plate and the lower node plate can make the whole precast column after connection more stable and have better stress performance; the support range of the upper node plate and the lower node plate is uniformly distributed, so as to maximally increase the strength and stability of the connection node formed after the mutual connection of the first connecting node and the second connecting node.

[0022] Meanwhile, the application further provides a construction method of the assembled concrete precast column plug-in type connecting node, which is based on the provided assembled concrete precast column plug-in type connecting node and comprises the following steps:

[0023] S1, manufacturing a first connecting mechanism and a second connecting mechanism;

[0024] S2, connecting the first connecting mechanism at the lower end of the upper segmental precast column and connecting the second connecting mechanism at the upper end of the lower segmental precast column;

[0025] S3, after the installation of the lower segmental precast column is completed, hoisting the upper segmental precast column to the upper segmental precast column, connecting the first connecting mechanism and the second connecting mechanism, forming the connecting joint between the upper segmental precast column and the lower segmental precast column, and synchronously completing the connection of the upper segmental precast column and the lower segmental precast column.

[0026] Further, the specific steps of step S1 are:

[0027] Vertically welding a plurality of upper longitudinal bars and upper anchoring bars on the upper node plate, vertically welding a first web plate and two first wing plates on the lower part to form a work-shaped upper connecting plate, and opening an upper insertion port in the middle of the lower end of the first web plate, and forming a first connecting mechanism as a whole;

[0028] Vertically welding a plurality of lower longitudinal bars and lower anchoring bars on the lower node plate, vertically welding a second web plate and two second wing plates on the upper part to form a work-shaped lower connecting plate, and opening a lower insertion port in the middle of the upper end of the second web plate, and forming a second connecting mechanism as a whole.

[0029] Further, the specific steps of step S2 are:

[0030] When the upper segmental precast column is prefabricated, the upper longitudinal bars in the first connecting mechanism are bound with the longitudinal bars of the steel reinforcement cage of the upper segmental precast column, the concrete pouring of the upper segmental precast column is carried out with the upper connecting plate as the end plate formwork, and the connection between the first connecting mechanism and the upper segmental precast column is completed after the concrete is solidified and the formwork is removed;

[0031] When the lower segmental precast column is prefabricated, the lower longitudinal bars in the second connecting mechanism are bound with the longitudinal bars of the steel reinforcement cage of the lower segmental precast column, the concrete pouring of the lower segmental precast column is carried out with the lower connecting plate as the end plate formwork, and the connection between the second connecting mechanism and the lower segmental precast column is completed after the concrete is solidified and the formwork is removed.

[0032] Further, the specific step of connecting the first connecting mechanism and the second connecting mechanism in the step S3 is: aligning the upper insertion interface of the lower end of the first web plate in the first connecting mechanism with the lower insertion interface of the upper end of the second web plate in the second connecting mechanism, then inserting and splicing the first web plate of the first connecting structure with the lower section of the prefabricated column through the upper insertion interface and the lower insertion interface, and at the same time, the first web plate and the first wing plate connected to the two ends of the first web plate form abutment with the lower connecting plate in the second connecting mechanism, and the second web plate and the second wing plate connected to the two ends of the second web plate form abutment with the upper connecting plate in the first connecting mechanism, then welding the inserted and spliced part of the first web plate and the second web plate, welding the joint part of the first web plate and the first wing plate and the lower connecting plate, and welding the joint part of the second web plate and the second wing plate and the upper connecting plate to complete the connection of the first connecting mechanism and the second connecting mechanism.

[0033] Compared with the prior art, the present application has the following beneficial effects:

[0034] 1. The first connecting mechanism and the second connecting mechanism are connected on the upper section of the prefabricated column and the lower section of the prefabricated column, the connection between the upper and lower sections of the prefabricated column is changed into the connection between the first connecting mechanism and the second connecting mechanism, the first connecting mechanism and the second connecting mechanism are inserted and welded, which not only ensures the connection precision, but also reduces the connection complexity between the prefabricated columns and greatly improves the construction efficiency.

[0035] 2. The upper node plate in the first connecting mechanism and the lower node plate in the second connecting mechanism are vertically arranged, which not only ensures the stability of the connection between the upper and lower prefabricated columns, but also uniformly distributes the stress between the upper and lower prefabricated columns, thereby having better stress performance. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a connection node exploded view in the inserted and welded connection node of the fabricated concrete prefabricated column of the present application;

[0037] Figure 2 It is a connection node overall view in the inserted and welded connection node of the fabricated concrete prefabricated column of the present application;

[0038] Figure 3 It is an upper connecting plate view in the inserted and welded connection node of the fabricated concrete prefabricated column of the present application;

[0039] Figure 4 It is an upper connecting plate upper connection view in the inserted and welded connection node of the fabricated concrete prefabricated column of the present application;

[0040] Figure 5 It is an upper node plate view in the inserted and welded connection node of the fabricated concrete prefabricated column of the present application;

[0041] Figure 6It is a first connecting mechanism schematic diagram in a fabricated concrete prefabricated column penetrating type connecting joint of the present application.

[0042] Mark number explanation: 101, upper node plate; 102, upper insertion interface; 103, first wing plate; 104, first web; 105, upper connecting plate; 106, upper anchor bar; 107, upper longitudinal bar; 201, lower node plate; 202, lower insertion interface; 203, second wing plate; 204, second web; 205, lower connecting plate; 206, lower anchor bar; 207, lower longitudinal bar. DETAILED DESCRIPTION

[0043] The present application will be further described below in combination with the drawings and specific embodiments.

[0044] Please refer to the accompanying Figures 1-6 The present application provides a kind of fabricated concrete prefabricated column penetrating type connecting joint, for the connection of upper and lower two prefabricated columns, including the first connecting mechanism connected to the lower end of upper prefabricated column and the second connecting mechanism connected to the upper end of lower prefabricated column;The first connecting mechanism includes upper connecting plate 105 and the upper node plate 101 vertically fixed in the lower part of upper connecting plate 105, the upper end of the upper node plate 101 is provided with upper insertion interface 102;The second connecting mechanism includes lower connecting plate 205 and the lower node plate 201 vertically fixed in the upper part of lower connecting plate 205, the upper end of the lower node plate 201 is provided with lower insertion interface 202;The upper node plate 101 and lower node plate 201 are inserted and spliced by the cooperation of upper insertion interface 102 and lower insertion interface 202, and the upper node plate 101 and lower node plate 201 are inserted and spliced Welding is fixed, and the lower end of the upper node plate 101 is welded and fixed with the lower connecting plate 205, and the upper end of the lower node plate 201 is welded and fixed with the upper connecting plate 105;When the first connecting mechanism and the second connecting mechanism are connected, the first connecting mechanism can be inserted and spliced with the lower node plate 201 in the second connecting mechanism by the cooperation of upper insertion interface 102 and lower insertion interface 202, the upper node plate 101 and lower node plate 201 are inserted and spliced Welding is fixed, the lower end of the upper node plate 101 is welded and fixed with the lower connecting plate 205, and the upper end of the lower node plate 201 is welded and fixed with the upper connecting plate 105, after which the connection of the first connecting mechanism and the second connecting mechanism can be completed, forming the connecting node of the upper prefabricated column and the lower prefabricated column, simultaneously realizing the connection of the upper prefabricated column and the lower prefabricated column, not only reducing the complexity of the connection between prefabricated columns, but also greatly increasing the construction efficiency.

[0045] The first connecting mechanism further comprises a plurality of upper longitudinal bars 107 and upper anchoring bars 106 fixed vertically on the upper portion of the upper connecting plate 105, which are pre-buried in the interior of the upper segmental precast column; the upper longitudinal bars 107 can be directly connected with the longitudinal bars of the reinforcement cage of the upper segmental precast column when the upper segmental precast column is prefabricated, and the upper anchoring bars 106 can be integrally consolidated into the interior of the upper segmental precast column when the upper segmental precast column is consolidated and formed, so as to increase the connecting strength between the first connecting mechanism and the upper segmental precast column.

[0046] Further, the first connecting mechanism further comprises a plurality of first plug welding holes opened on the upper portion of the upper connecting plate 105, the lower ends of the upper longitudinal bars 107 and the upper anchoring bars 106 are respectively inserted and welded in the corresponding first plug welding holes; the first plug welding holes are arranged so that the lower ends of the upper longitudinal bars 107 and the upper anchoring bars 106 can be inserted into the interior of the upper connecting plate 105, and welding can increase the connecting strength of the upper longitudinal bars 107 and the upper anchoring bars 106 on the upper connecting plate 105.

[0047] The second connecting mechanism further comprises a plurality of lower longitudinal bars 207 and lower anchoring bars 206 fixed vertically on the lower portion of the lower connecting plate 205, which are pre-buried in the interior of the lower segmental precast column; the lower longitudinal bars 207 can be directly connected with the longitudinal bars of the reinforcement cage of the lower segmental precast column when the lower segmental precast column is prefabricated, and the lower anchoring bars 206 can be integrally consolidated into the interior of the lower segmental precast column when the lower segmental precast column is consolidated and formed, so as to increase the connecting strength between the second connecting mechanism and the lower segmental precast column.

[0048] Further, the second connecting mechanism further comprises a plurality of second plug welding holes opened on the lower portion of the lower connecting plate 205, the upper ends of the lower longitudinal bars 207 and the lower anchoring bars 206 are respectively inserted and welded in the corresponding second plug welding holes; the second plug welding holes are arranged so that the upper ends of the lower longitudinal bars 207 and the lower anchoring bars 206 can be inserted into the interior of the lower connecting plate 205, and welding can increase the connecting strength of the lower longitudinal bars 207 and the lower anchoring bars 206 on the lower connecting plate 205.

[0049] The upper node plate 101 is a channel-shaped plate, comprising a first web plate 104 and first wing plates 103 connected at both ends of the first web plate 104, the upper plug-in interface 102 is opened in the middle of the lower end of the first web plate 104, the opening width of the upper plug-in interface 102 is the same as the thickness of the first web plate 104, and the opening height of the upper plug-in interface 102 is half of the height of the first web plate 104; the lower node plate 201 is a channel-shaped plate, comprising a second web plate 204 and second wing plates 203 connected at both ends of the second web plate 204, the lower plug-in interface 202 is opened in the middle of the upper end of the second web plate 204, the opening width of the lower plug-in interface 202 is the same as the thickness of the second web plate 204, and the opening height of the lower plug-in interface 202 is half of the height of the second web plate 204;

[0050] The upper node plate 101 and the lower node plate 201 are completely identical in structure, and when the upper node plate 101 and the lower node plate 201 are spliced, the upper splicing interface 102 on the first web plate 104 of the upper node plate 101 can be completely buckled on the second web plate 204 of the lower node plate 201, and the lower splicing interface 202 on the second web plate 204 of the lower node plate 201 can be completely buckled on the first web plate 104 of the upper node plate 101, so that the number of positions that can be welded is maximized, the stability between the upper node plate 101 and the lower node plate 201 after subsequent welding is increased, and the stability of the entire connecting node is increased; the upper splicing interface 102 on the first web plate 104 and the lower splicing interface 201 on the second web plate 204 are separately and accurately matched, so that the connection difficulty is reduced and the accuracy after connection is ensured; the first wing plate 103 and the second wing plate 203 can assist in increasing the support stability and increasing the weldable area, and the connection stability between the first connecting mechanism and the second connecting mechanism is further increased after subsequent welding of the corresponding seam positions.

[0051] Further, in order to further increase the connection efficiency, accuracy and stability between the first connecting mechanism and the second connecting mechanism, the thickness of the first web plate 104 and the second web plate 204 can be increased.

[0052] The upper node plate 101 is located at the middle part of the lower end of the upper connecting plate 105, and the lower node plate 201 is located at the middle part of the upper end of the lower connecting plate 205, so that the central arrangement of the upper node plate 101 and the lower node plate 201 can make the whole prefabricated column after connection more stable and have better stress performance; the upper node plate 101 and the lower node plate 201 are perpendicular to each other, so that the support range of the upper node plate 101 and the lower node plate 201 is uniformly distributed, and the strength and stability of the connecting node formed after the mutual connection of the first connecting node and the second connecting node are maximized.

[0053] Meanwhile, the application also provides a construction method of the splicing type connecting node of the fabricated concrete prefabricated column, and the construction method comprises the following steps: S1, manufacturing the first connecting mechanism and the second connecting mechanism; S2, connecting the first connecting mechanism at the lower end of the upper section prefabricated column and connecting the second connecting mechanism at the upper end of the lower section prefabricated column; S3, after the installation of the lower section prefabricated column is completed, the upper section prefabricated column is hoisted to the upper side of the lower section prefabricated column, the first connecting mechanism and the second connecting mechanism are connected, the connecting node between the upper section prefabricated column and the lower section prefabricated column is formed, and the connection of the upper section prefabricated column and the lower section prefabricated column is simultaneously completed.

[0054] Further, the specific steps of step S1 are as follows: a plurality of upper longitudinal bars 107 and upper anchorage bars 106 are vertically welded on the upper part of the upper node plate 101, a first web plate 104 and two first wing plates 103 are vertically welded on the lower part of the upper node plate 101 to form a channel-shaped upper connecting plate 105, an upper insertion interface 102 is formed in the middle of the lower end of the first web plate 104, and the first connecting mechanism is formed as a whole; a plurality of lower longitudinal bars 207 and lower anchorage bars 206 are vertically welded on the lower part of the lower node plate 201, a second web plate 204 and two second wing plates 203 are vertically welded on the upper part of the lower node plate 201 to form a channel-shaped lower connecting plate 205, a lower insertion interface 202 is formed in the middle of the upper end of the second web plate 204, and the second connecting mechanism is formed as a whole.

[0055] Further, the specific steps of step S2 are as follows: when the upper segment prefabricated column is prefabricated, the upper longitudinal bars 107 in the first connecting mechanism are bound with the longitudinal bars of the steel reinforcement cage of the upper segment prefabricated column, the upper segment prefabricated column is poured with concrete with the upper connecting plate 105 as the end plate formwork, the first connecting mechanism is connected with the upper segment prefabricated column after the concrete is solidified and the formwork is removed; when the lower segment prefabricated column is prefabricated, the lower longitudinal bars 207 in the second connecting mechanism are bound with the longitudinal bars of the steel reinforcement cage of the lower segment prefabricated column, the lower segment prefabricated column is poured with concrete with the lower connecting plate 205 as the end plate formwork, and the second connecting mechanism is connected with the lower segment prefabricated column after the concrete is solidified and the formwork is removed.

[0056] Further, the specific steps of connecting the first connecting mechanism and the second connecting mechanism in step S3 are as follows: the upper insertion interface 102 at the lower end of the first web plate 104 in the first connecting mechanism is aligned with the lower insertion interface 202 at the upper end of the second web plate 204 in the second connecting mechanism, then the first web plate 104 of the first connecting structure is lowered along with the upper segment prefabricated column and the lower segment prefabricated column to be inserted and spliced through the upper insertion interface 102 and the lower insertion interface 202, at the same time, the first web plate 104 and the first wing plates 103 connected at both ends of the first web plate 104 abut against the lower connecting plate 205 in the second connecting mechanism, and the second web plate 204 and the second wing plates 203 connected at both ends of the second web plate 204 abut against the upper connecting plate 105 in the first connecting mechanism, then the first web plate 104 and the second web plate 204 are welded at the inserted and spliced part, the first web plate 104 and the first wing plates 103 are welded at the joint with the lower connecting plate 205, and the second web plate 204 and the second wing plates 203 are welded at the joint with the upper connecting plate 105 to complete the connection of the first connecting mechanism and the second connecting mechanism.

[0057] The above embodiments of the application are described in detail with reference to the drawings, and those skilled in the art can make various changes to the application according to the above description. Therefore, some details in the embodiments should not be regarded as limiting the application, and the protection scope of the application will be defined by the appended claims.

Claims

1. A precast concrete column interlocking connection node for connecting upper and lower precast column sections, characterized in that: The first connecting mechanism is connected to the lower end of the upper section of the prefabricated column, and the second connecting mechanism is connected to the upper end of the lower section of the prefabricated column; The first connecting mechanism comprises an upper connecting plate and an upper node plate vertically fixed to the lower part of the upper connecting plate, the upper node plate is located in the middle of the lower end of the upper connecting plate, and the middle of the lower end of the upper node plate is provided with an upper insertion port; The second connecting mechanism comprises a lower connecting plate and a lower node plate vertically fixed to the upper part of the lower connecting plate, the lower node plate is located in the middle of the upper end of the lower connecting plate, and the middle of the upper end of the lower node plate is provided with a lower insertion port; The upper node plate and the lower node plate are inserted and spliced through the cooperation of the upper insertion port and the lower insertion port, and the upper node plate and the lower node plate are welded and fixed at the inserted and spliced position, meanwhile, the lower end of the upper node plate is welded and fixed with the lower connecting plate, and the upper end of the lower node plate is welded and fixed with the upper connecting plate; The upper node plate is an I-shaped plate comprising a first web plate and a first wing plate connected to both ends of the first web plate, the upper insertion port is provided in the middle of the lower end of the first web plate, the opening width of the upper insertion port is the same as the thickness of the first web plate, and the opening height of the upper insertion port is half of the height of the first web plate; The lower node plate is an I-shaped plate comprising a second web plate and a second wing plate connected to both ends of the second web plate, the lower insertion port is provided in the middle of the upper end of the second web plate, the opening width of the lower insertion port is the same as the thickness of the second web plate, and the opening height of the lower insertion port is half of the height of the second web plate; The upper node plate and the lower node plate are completely identical in structure.

2. The prefabricated column connection node according to claim 1, characterized in that: The first connecting mechanism further comprises a plurality of upper longitudinal reinforcement and upper anchor reinforcement vertically fixed to the upper part of the upper connecting plate, and the upper longitudinal reinforcement and the upper anchor reinforcement are pre-buried in the interior of the upper section of the prefabricated column; The second connecting mechanism further comprises a plurality of lower longitudinal reinforcement and lower anchor reinforcement vertically fixed to the lower part of the lower connecting plate, and the lower longitudinal reinforcement and the lower anchor reinforcement are pre-buried in the interior of the lower section of the prefabricated column.

3. The cast-in-place concrete column and prefabricated concrete column splicing connection node according to claim 2, characterized in that: The first connecting mechanism further comprises a plurality of first plug welding holes provided in the upper part of the upper connecting plate, and the lower end of the upper longitudinal reinforcement and the upper anchor reinforcement is respectively inserted and welded in the corresponding first plug welding hole; The second connecting mechanism further comprises a plurality of second plug welding holes provided in the lower part of the lower connecting plate, and the upper end of the lower longitudinal reinforcement and the lower anchor reinforcement is respectively inserted and welded in the corresponding second plug welding hole.

4. The fabricated concrete precast column pin-connected joint according to claim 1, characterized in that: The upper node plate and the lower node plate are perpendicular to each other.

5. The construction method of the fabricated concrete precast column penetrating connection joint according to any one of claims 1-4, characterized in that, The method comprises the following steps: S1, manufacturing the first connecting mechanism and the second connecting mechanism; S2, connecting the first connecting mechanism to the lower end of the upper section of the prefabricated column, and connecting the second connecting mechanism to the upper end of the lower section of the prefabricated column; S3, after the installation of the lower section of the prefabricated column is completed, hoisting the upper section of the prefabricated column to the upper side of the lower section of the prefabricated column, connecting the first connecting mechanism and the second connecting mechanism, forming the connecting node between the upper section of the prefabricated column and the lower section of the prefabricated column, and simultaneously completing the connection of the upper section of the prefabricated column and the lower section of the prefabricated column.

6. The construction method of the fabricated concrete precast column penetrating type connection joint according to claim 5, characterized in that, The specific steps of the step S1 are as follows: vertically welding a plurality of upper longitudinal reinforcement and upper anchor reinforcement on the upper part of the upper node plate, vertically welding a first web plate and two first wing plates on the lower part to form an I-shaped upper connecting plate, and providing an upper insertion port in the middle of the lower end of the first web plate to form the first connecting mechanism as a whole; A plurality of lower longitudinal bars and lower anchorage bars are vertically welded at the lower part of the lower node plate, a second web plate and two second wing plates are vertically welded at the upper part of the lower node plate to form a channel-shaped lower connecting plate, a lower insertion port is formed at the middle of the upper end of the second web plate, and the whole is formed into a second connecting mechanism.

7. The construction method of the fabricated concrete precast column penetrating type connection joint according to claim 6, characterized in that, The specific steps of the step S2 are: During the prefabrication of the upper segment prefabricated column, the upper longitudinal bars in the first connecting mechanism are bound with the longitudinal bars of the steel reinforcement cage of the upper segment prefabricated column, the upper segment prefabricated column is poured with concrete with the upper connecting plate as the end plate for formwork, and the connection between the first connecting mechanism and the upper segment prefabricated column is completed after the concrete is solidified and the formwork is removed; During the prefabrication of the lower segment prefabricated column, the lower longitudinal bars in the second connecting mechanism are bound with the longitudinal bars of the steel reinforcement cage of the lower segment prefabricated column, the lower segment prefabricated column is poured with concrete with the lower connecting plate as the end plate for formwork, and the connection between the second connecting mechanism and the lower segment prefabricated column is completed after the concrete is solidified and the formwork is removed.

8. The construction method of the fabricated concrete precast column penetrating type connection joint according to claim 7, characterized in that, The specific steps of the connection between the first connecting mechanism and the second connecting mechanism in the step S3 are: the upper insertion port at the lower end of the first web plate in the first connecting mechanism is aligned with the lower insertion port at the upper end of the second web plate in the second connecting mechanism, then the first web plate of the first connecting mechanism is inserted into the second connecting mechanism through the upper insertion port and the lower insertion port along with the lowering of the upper segment prefabricated column and the lower segment prefabricated column, the first web plate and the first wing plates connected to the two ends of the first web plate form abutment with the lower connecting plate in the second connecting mechanism, the second web plate and the second wing plates connected to the two ends of the second web plate form abutment with the upper connecting plate in the first connecting mechanism, then the first web plate and the second web plate are welded at the insertion and splicing position, the first web plate and the first wing plates are welded at the joint with the lower connecting plate, and the second web plate and the second wing plates are welded at the joint with the upper connecting plate to complete the connection between the first connecting mechanism and the second connecting mechanism.

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