Wood-plastic multi-element composite column body connecting structure

Abstract

The invention relates to the field of wood-plastic multi-element composite column profiles, in particular to a wood-plastic multi-element composite column connecting structure which comprises a column-foundation connecting joint and a column-column connecting joint. The column-foundation connecting node comprises a wood-plastic concrete filled steel tube multi-component composite column and a column foundation connector, the wood-plastic concrete filled steel tube multi-component composite column is used for being assembled with the column foundation connector, and a concrete foundation part is assembled with the column foundation connector; the column-column connection node comprises wood-plastic concrete filled steel tube multi-component composite columns and a column-column connector, and the wood-plastic concrete filled steel tube multi-component composite columns are installed on the upper side and the lower side of the column-column connector respectively. The defects that when multiple materials are applied to building structure manufacturing in a composite mode, installation is difficult due to the fact that the materials are not convenient to use, damage is prone to occurring due to low connecting strength, materials are wasted due to large machining loss, and maintenance is difficult due to building structure integrity are overcome.

Description

Technical Field

[0001] The invention relates to the technical field of wood-plastic multi-component composite column profiles, in particular to a wood-plastic multi-component composite column connection structure. Background Art

[0002] Traditional building materials such as concrete and steel are known for their remarkable high density. This characteristic directly leads to the fact that buildings constructed with these materials often carry a large weight, and their application in long-span structures and high-rise buildings is subject to certain restrictions. Concrete materials have relatively low tensile strength and high density. The construction process of concrete structures is complicated and the repair and reinforcement work is relatively difficult. Compared with traditional building materials such as concrete structures, the manufacturing and installation costs of steel structures are generally higher. Steel structure materials have high strength and toughness, but are prone to rust and corrosion in humid and corrosive environments. This not only damages the appearance and aesthetics of the structure, but also reduces the strength and durability of the structure.

[0003] As an emerging trend in the construction industry, prefabricated buildings are gradually changing the traditional construction methods with their high efficiency and environmental protection characteristics. Among them, wood-plastic composite materials have shown great potential in the field of prefabricated buildings due to their environmental protection, stability and convenient processing.

[0004] Wood plastic composites (WPCs) are a green building material that combines environmental protection and sustainability. Their mature and diverse molding processes give WPCs excellent processability, outstanding waterproof, mildew-proof, and decay-resistant properties. As the construction industry transforms towards a greener, low-carbon, and assembled direction, wood plastic composites have become one of the important candidate materials for promoting green building materials and sustainable development in the construction field. However, wood plastic composites still have some key shortcomings in mechanical properties, mainly including strength, stiffness, and durability. These performance limitations are the main technical obstacles that currently hinder the widespread use of WPCs in large, complex, and high-standard building structures.

[0005] The preparation of wood-plastic-steel-tube-concrete composite columns by combining wood-plastic composite materials, steel and concrete is expected to solve the above-mentioned defects of the building structure from the perspective of materials and enhance the comprehensive strength of the column. However, the combination of multiple materials will bring difficulties to the connection between multiple components. Therefore, providing a new composite column connection structure that is simple to assemble, stable and durable, and has high strength has become a technical problem that needs to be solved at present. Summary of the invention

[0006] The purpose of the present invention is to provide a wood-plastic multi-composite column connection structure to solve the defects of the composite application of multiple materials in the manufacturing of building structures, such as difficulty in installation due to inconvenient materials, easy damage due to low connection strength, waste of materials due to large processing loss, and difficulty in maintenance due to the integrity of the building structure.

[0007] To achieve the above object, the present invention provides the following technical solutions: A wood-plastic multi-component composite column connection structure, comprising a wood-plastic steel tube concrete multi-component composite column, a concrete foundation part, a column-foundation connection node and a column-column connection node; The column-base connection node includes a wood-plastic composite column part and a column base connector part, the wood-plastic composite column part is used to be assembled with the column base connector part, and the concrete foundation part is assembled with the column base connector part; The column-column connection node comprises an upper wood-plastic composite column portion, a column-column connector portion and a lower wood-plastic composite column portion, wherein the upper wood-plastic composite column portion and the lower wood-plastic composite column portion are respectively mounted on upper and lower sides of the column-column connector portion; The wood-plastic steel tube concrete multi-component composite column is used to be assembled with an upper wood-plastic composite column part and a wood-plastic composite column part or with an upper wood-plastic composite column part or a lower wood-plastic composite column part of another column-column connection node; The wood-plastic steel tube concrete multi-component composite column and the concrete foundation part are respectively assembled with the column-foundation connection node, and then the column-column connection node is assembled with the wood-plastic steel tube concrete multi-component composite column to form the wood-plastic steel tube concrete multi-component composite column connection structure.

[0008] Furthermore, the wood-plastic composite column part includes a grooved steel pipe, an embedded anchor bolt in the column and an outer sleeve connector. The grooved steel pipe is sleeved on the outer sleeve connector. One end of the grooved steel pipe extends out of the lower wood-plastic steel tube concrete multi-composite column for placing the embedded bolt in the column. The threaded end extends from the wall of the grooved steel pipe for forming a stable connection point with the concrete after the concrete in the concrete foundation part is completely solidified.

[0009] Furthermore, after one end of the grooved steel pipe and the concrete are completely solidified, the wood-plastic composite column part and the concrete form a steel tube concrete column, and the outer sleeve connector includes a steel sleeve and a flange plate welded to the steel sleeve, and the steel sleeve is used to cover the grooved steel pipe.

[0010] Furthermore, the column base connector part includes a channel steel sleeve and a flange plate and a grooved upper flange plate welded on the upper and lower sides of the channel steel sleeve. The four sides of the channeled upper flange plate and the channeled steel sleeve are provided with grooves corresponding to the embedded anchor bolts in the column of the wood-plastic composite column part. The channeled steel sleeve is inserted and engaged with the steel tube concrete column through the inner cavity, and the flange plate is fixed to the concrete by the anti-pull-out embedded anchor bolts.

[0011] Furthermore, the concrete foundation part is composed of pull-out embedded anchor bolts, longitudinal locking nuts, concrete and transverse locking nuts. The concrete is equipped with pull-out embedded anchor bolts for connecting with the column base connector part. A hole groove for concrete grouting is reserved at the center position of the concrete. The longitudinal locking nuts are locked with the pull-out embedded anchor bolts to connect the flange plate of the column base connector part and the flange plate of the grooved upper flange plate and the outer sleeve connector together to perform longitudinal locking of the column. The transverse locking nuts are locked with the embedded bolts in the column to tighten the embedded anchor bolts in the column and the column base connector part to form transverse locking of the column.

[0012] Furthermore, the upper wood-plastic composite column part includes an upper wood-plastic steel tube concrete multi-component composite column, a steel pipe and an outer sleeve connector, the steel pipe is sleeved on the upper wood-plastic steel tube concrete multi-component composite column, and the outer sleeve connector is sleeved on the steel pipe.

[0013] Furthermore, the lower wood-plastic composite column part includes a lower wood-plastic steel tube concrete multi-component composite column, a steel pipe and an outer sleeve connector, the steel pipe is sleeved on the lower wood-plastic steel tube concrete multi-component composite column, and the outer sleeve connector is sleeved on the steel pipe.

[0014] Furthermore, the column-to-column connector part includes an inner cavity steel sleeve and two flange plates installed on the upper and lower sides of the inner cavity steel sleeve, and a reinforcing plate is provided between the two flange plates and the inner cavity steel sleeve. The inner cavity steel sleeve is used to cover the steel pipes of the upper wood-plastic composite column part and the lower wood-plastic composite column part, and the flange plate of the outer sleeve connector and the flange plate of the inner cavity steel sleeve are locked by high-strength bolts and longitudinal locking nuts.

[0015] Furthermore, the reinforcing auxiliary plates are welded to the four sides and four corners of the inner cavity steel sleeve, and the inner cavity shape of the inner cavity steel sleeve matches the cross-sectional shape of the steel pipe.

[0016] Furthermore, the steel pipe and the outer sleeve connector are assembled and then welded.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes the types and characteristics of the connection nodes of prefabricated buildings, and utilizes the characteristics of wood-plastic composite materials and steel materials to provide a prefabricated building structure with a wood-plastic steel tube concrete multi-composite column, steel components, a fully assembled new structure and connection nodes, so that the overall structural strength of the building is guaranteed and rapid assembly is achieved. And by designing the cross-section of the wood-plastic steel tube concrete multi-composite column, the strength of the wood-plastic steel tube concrete multi-composite column during the combination and use process is guaranteed, thereby making the overall column structure more solid, giving the wood-plastic composite column an ​​application scenario in high-load-bearing buildings. And the column-foundation connection node and the column-column connection node are a set of specific composite connection systems, and the same connection method can be used for different node connections, which can be extended to the column-beam connection node, which is conducive to the construction of the wood-plastic prefabricated building frame structure.

[0018] Connecting the wood-plastic steel tube concrete multi-composite column and the concrete foundation through the column base connection structure (i.e., the column-base connection node) is conducive to reinforcing the bottom of the column (wood-plastic steel tube concrete multi-composite column) to ensure that it can withstand sufficient load, which helps to reduce the risk of the column (wood-plastic steel tube concrete multi-composite column) tilting or collapsing under load, ensuring the safety of the building. The column base connection structure can disperse the load borne by the bottom of the column and transfer it more evenly to the foundation / concrete foundation part, while also helping to reduce the settlement and deformation of the foundation, thereby protecting the stability and safety of the building. The application of the column base connection structure in prefabricated buildings can simplify the construction and installation process of the column and reduce the difficulty and cost of construction.

[0019] Connecting the upper wood-plastic steel tube concrete multi-composite column and the lower wood-plastic steel tube concrete multi-composite column through the column-column connection structure (i.e., the column-column connection node) can disperse the load borne by the column, help reduce the stress concentration at a single part of the column, thereby extending the service life of the column and improving its bearing capacity, which is beneficial to enhancing the overall stiffness and stability of the structure and enhancing its seismic performance. The inner cavity of the column-column connection structure can be adapted and plugged according to the cross-sectional shape of the column. When designing the engineering column, the cross-sectional size, connection method, connection position and other parameters of the column can be flexibly adjusted according to different structural requirements. The application of the column-column connection structure in prefabricated buildings can simplify the construction and installation process of the column and reduce the difficulty and cost of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the column-column connection node structure of the wood-plastic steel tube concrete multi-component composite column connection structure of the present invention after connection.

[0021] Figure 2 It is a schematic diagram of the decomposition of the column-column connection node structure of the present invention.

[0022] Figure 3It is a schematic cross-sectional view of the wood-plastic steel tube concrete multi-component composite column of the present invention.

[0023] Figure 4 It is a schematic diagram of the column-column connection nodes of the wood-plastic steel tube concrete multi-component composite column connection structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the column-foundation connection node structure decomposition of the wood-plastic steel tube concrete multi-component composite column connection structure of the present invention.

[0025] In the figure: 100-wood-plastic composite column part, 200-column base connector part, 300-concrete foundation part, 400-outer sleeve connector, 500-upper wood-plastic composite column part, 600-column connector part, 700-lower wood-plastic composite column part, 1-steel tube concrete column, 2-slotted steel pipe, 3-embedded anchor bolts in column, 4-flange plate, 5-steel sleeve, 6-slotted upper flange plate, 7-slotted steel sleeve, 8-anti-pull-out embedded anchor bolts, 9-longitudinal locking nut, 10-concrete, 11-transverse locking nut, 12-upper wood-plastic steel tube concrete multi-composite column, 13-lower wood-plastic steel tube concrete multi-composite column, 14-reinforcement auxiliary plate, 15-inner cavity steel sleeve, 16-steel pipe, 17-high-strength bolt, 18-slot, 19-hole groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper end", "lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "sleeved", "connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figures 1 to 5 , the present invention provides a technical solution: The wood-plastic steel tube concrete multi-composite column connection structure is mainly used for column-column connection and column-foundation connection, including column-foundation connection nodes and column-column connection nodes. The column-foundation connection node includes a wood-plastic composite column part 100, a column foundation connector part 200 and a concrete foundation part 300. The wood-plastic composite column part 100 is composed of a steel tube concrete column 1, a grooved steel pipe 16, a column embedded anchor bolt 3, and an outer sleeve connector 400. The column foundation connector part 200 is welded by a flange plate 4 and a grooved upper flange plate 6 and a grooved steel sleeve 7 of a shape corresponding to the inner cavity of the column. The concrete foundation part 300 is composed of an anti-pullout embedded anchor bolt 8, a longitudinal locking nut 9, concrete 10 and a transverse locking nut 11. The column-column connection node includes an upper wood-plastic composite column part 500, a column-column connector part 600 and a lower wood-plastic composite column part 700. The upper wood-plastic composite column part 500 is composed of a steel tube concrete column 1, an upper wood-plastic steel tube concrete multi-composite column 12, a steel pipe 2, a high-strength bolt 17 and an outer sleeve connector 400. The column-column connector part 600 is composed of two flange plates 4, an inner cavity steel sleeve 15, and a reinforcing auxiliary plate 14. The lower wood-plastic composite column part 700 is composed of a lower wood-plastic steel tube concrete multi-composite column 13, a steel pipe 2, a steel tube concrete column 1 and an outer sleeve connector 400.

[0030] The grooved steel pipe 16 in the wood-plastic composite column part 100 is aligned with one end of the lower wood-plastic steel tube concrete multi-composite column 13, and the grooved end of the grooved steel pipe 16 extends 120 mm outward from the lower wood-plastic steel tube concrete multi-composite column 13. Four L-shaped column embedded bolts 3 are placed at the extended position, and the threaded end extends out from the steel pipe wall. The corresponding positions of the grooved steel pipe 2 and the column embedded anchor bolts 3 are provided with grooves 18.

[0031] After the main body of the wood-plastic composite column 100 is assembled, concrete is poured into the grooved steel pipe 2. After it is completely solidified, it becomes a steel tube concrete column 1. The outer sleeve connector 400 is welded to the steel tube concrete column 1. The outer sleeve connector 400 is welded by a flange plate 4 and a copper sleeve 5.

[0032] The four sides of the grooved upper flange plate 6 and the grooved steel sleeve 7 are provided with grooves 18 corresponding to the embedded anchor bolts 3 in the wood-plastic composite column part 100, and the grooved steel sleeve 7 is inserted and engaged with the steel tube concrete column 1 through the inner cavity.

[0033] The concrete foundation part 300 is composed of an anti-pullout embedded anchor bolt 8, a longitudinal locking nut 9, concrete 10, and a transverse locking nut 11. The concrete foundation part 300 is equipped with an anti-pullout embedded anchor bolt 8 for connecting with the column base connector part 200. A hole groove for concrete grouting is reserved at the center position of the concrete foundation part 300.

[0034] The steel pipe 16 in the upper wood-plastic composite column part 500 is aligned with one end of the upper wood-plastic steel tube concrete multi-composite column 12 , and the other end of the steel pipe 16 extends outwards by 120 mm beyond the upper wood-plastic steel tube concrete multi-composite column 12 .

[0035] After the main body of the upper wood-plastic composite column part 500 is assembled, concrete is poured into the steel pipe 16. After it is completely solidified, it becomes a steel tube concrete column 1. The outer sleeve connector 400 is welded to the steel tube concrete column 1. The outer sleeve connector 400 is welded by a flange plate 4 and a steel sleeve 5.

[0036] The reinforcing auxiliary plate 14 is welded to the four sides and four corners of the inner cavity steel sleeve 15 of the column-to-column connector part 600. The inner cavity shape of the inner cavity steel sleeve 15 can be selected and matched according to the cross-sectional shape of the steel pipe 16, such as circular, square, octagonal, etc.

[0037] The lower wood-plastic composite column part 700 is welded by a steel pipe 2 and an outer sleeve connector 400, and one end is aligned.

[0038] The column-base connection node and the column-column connection node of the wood-plastic-steel tube-concrete composite column are combined, and the connection of the column-column node and the column-base node can be achieved by using the mutual cooperation between the connectors and locking with the longitudinal locking nut 9 and the transverse locking nut 11.

[0039] Specific implementation method 1: Combination Figures 1 to 3The present embodiment is described, a wood-plastic composite column connection structure has a column-base connection node and a column-column connection node, the column-column connection node has an upper wood-plastic composite column part 500, a column-column connector part 600 and a lower wood-plastic composite column part 700, the upper wood-plastic composite column part 500 extends the steel pipe 2 to the outside of the wood-plastic steel tube concrete multi-composite column by about 120 mm during production, and is welded to an outer sleeve connector 400 with a flange plate 4 and a steel sleeve 5, so that the upper wood-plastic composite column 500 and the outer sleeve connector 400 are shaped The column-to-column connector part 600 is welded by upper and lower flange plates 4 and steel sleeves 5. Reinforcement ribs 14 are added at the four sides and four corners of the column-to-column connector part 600 to improve the bearing capacity of the node (column-to-column connection node). The steel pipe of the lower wood-plastic composite column part 700 does not extend outward, and the outer sleeve connector 400 is welded to the steel pipe as a whole. A hole with the same geometric shape as the inner cavity of the wood-plastic steel tube concrete multi-composite column is reserved in the middle of the flange plate 4, and concrete is poured from here to complete the factory prefabrication of the lower wood-plastic composite column part 700. During installation, the column-to-column connector part 600 and the lower wood-plastic composite column part 100 are firstly fastened longitudinally with high-strength bolts 17, and then the upper wood-plastic composite column part 500 is inserted into the column-to-column connector part 600, and the high-strength bolts 17 are also used for longitudinal fastening, so as to complete the connection between the columns. When expanding to the column-beam connection node, appropriate improvements can also be made based on the node form, such as opening bolt holes in the edge reinforcement ribs 14 in the column-to-column connector part 600, and using steel splints and high-strength bolts to connect the I-beam and the column into one, forming a supporting frame for the building.

[0040] The beneficial effects of the above specific embodiments are: the present invention utilizes the characteristics of wood-plastic composite materials and steel materials to complete the column-column connection node composite connection of the longitudinal bolt (i.e., the pull-out embedded anchor bolt 8 cooperates with the longitudinal locking nut 9) locking and the inner and outer sleeves (i.e., the outer sleeve connector 400) plugging, and the overall height of the column-column connector part 600 of the connection is consistent with the steel pipe extension part of the lower wood-plastic composite column part 700, so as to effectively transfer the load of the upper column (i.e., the upper wood-plastic steel tube concrete multi-composite column 12) to the lower column (i.e., the lower wood-plastic steel tube concrete multi-composite column 13), so that the overall structural strength of the building is guaranteed and rapid assembly is achieved. The steel sleeve 5 can fix the wood-plastic steel tube concrete multi-composite column (including the upper wood-plastic steel tube concrete multi-composite column 12 and the lower wood-plastic steel tube concrete multi-composite column 13) and prevent left and right shaking, and the wood-plastic steel tube concrete multi-composite column may be stuck between the column-column connection node and the column-foundation connection node and will not move up and down. The reinforcing auxiliary plate 14 is used to reinforce the column base connector part 200 so that the flange plate 4 does not deform.

[0041] Specific implementation method 2: Combination Figure 4 and Figure 5 The present embodiment is described, a wood-plastic multi-composite column connection structure has a column-base connection node and a column-column connection node, wherein the column-base connection node has a wood-plastic composite column part 100, a column base connector part 200 and a concrete base part 300, wherein the wood-plastic composite column part 100 extends the grooved steel pipe 16 to the outside of the wood-plastic steel tube concrete multi-composite column 13 by about 120 mm during production, and before the grooved steel pipe 16 is poured with concrete, four L-shaped column embedded anchor bolts 3 are installed at the extended position of the grooved steel pipe 16, so that one end with a thread extends out from the wall of the grooved steel pipe 16, and a stable connection point is formed when the concrete 10 in the grooved steel pipe 16 is completely solidified, and an outer sleeve connector 400 with a flange plate 4 and a steel sleeve 5 is welded to the steel pipe, In order to facilitate the subsequent longitudinal locking connection, the column base connector part 200 is welded by two flange plates 4 and a steel sleeve of a corresponding shape in the column cavity. The steel sleeve is used for the aforementioned extended steel tube concrete column 1 to be inserted and joined, wherein the four sides of the grooved upper flange plate 6 and the corresponding position of the steel sleeve are provided with grooves 18 so that the embedded anchor bolts 3 in the column of the wood-plastic composite column part 100 can be connected to the area. The concrete foundation part 300 is equipped with anti-pullout embedded anchor bolts 8 for installing the column base connector part 200, and a hole groove 19 for grouting concrete 10 is reserved at the center position. During installation, firstly, the column base connector part 200 is installed on the pre-embedded anchor bolt 3 in the column of the concrete foundation 300, and the installation accuracy is calibrated using the leveling nut, and then the column base connector part 200 is fixed in place using the transverse locking nut 11; secondly, the wood-plastic composite column part 100 is inserted into the sleeve of the column base connector part 200 to the reserved grouting groove (i.e., the groove of the grooved steel pipe 16), and at this time, the two flange plates 4 are connected together using the longitudinal locking nut 9 to perform the longitudinal locking of the column, and the pre-embedded anchor bolt 3 in the column and the column base connector part 200 are tightened using the transverse locking nut 11 to form the transverse locking of the column; finally, high-strength concrete 10 is used to grout into the reserved hole groove 19, so that the node and the foundation form a whole. When grouting, the grouting method can be selected according to the specific needs of the project. It can be selected to grout only in the reserved grouting groove, or the entire node can be coated with grouting material.

[0042] The beneficial effects of the above specific implementation are: the present invention utilizes the characteristics of wood-plastic composite materials and steel materials to complete the longitudinal bolt (i.e., the pull-out embedded anchor bolt 8 cooperates with the longitudinal locking nut 9) locking plus the transverse bolt (i.e., the embedded anchor bolt 3 in the column cooperates with the transverse locking nut 11) locking plus the inner and outer sleeves (including the steel sleeve 5, the grooved steel sleeve 7 and the inner cavity steel sleeve 15) plug-in plus the high-performance grouting of the column-foundation connection node composite connection, the grooved steel pipe 2 has four holes that just correspond to the position of the L-shaped embedded bolt 3 in the column to prevent the bolt from moving left and right, and is clamped together with the grooved upper flange plate 6 below to prevent it from moving up and down. The concrete 10 has both strength and can fix the embedded anchor bolt 3 in the column. The L-shaped embedded bolt in the column cooperates with the grooved steel pipe and the grooved steel sleeve and restricts each other to strengthen the stability of the entire connection structure. The structure of the concrete cavity allows the steel tube concrete column 1 to be inserted into the concrete foundation part 300. The grooved upper flange plate 6 and the grooved steel sleeve are used to clamp the embedded bolts 3 in the column. The reinforcement auxiliary plate is used to reinforce the column base connector part to prevent the flange plate 4 from deforming. The pull-out embedded anchor bolts 3 prevent the column base connector part 200 and the overall structure from shaking up and down, effectively stabilizing the structure. The reserved holes and grooves in the concrete 10 part can be used to insert the steel tube concrete column 1 into the concrete foundation part 300 and then inject concrete on site to stabilize the structure.

[0043] The present invention, the undescribed parts are prior art.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wood-plastic multi-composite column connection structure, characterized in that: It includes a wood-plastic steel tube concrete multi-component composite column, a concrete foundation part (300), a column-foundation connection node and a column-column connection node; The column-base connection node comprises a wood-plastic composite column part (100) and a column base connector part (200), the wood-plastic composite column part (100) is used to be assembled with the column base connector part (200), and the concrete base part (300) is assembled with the column base connector part (200); The column-column connection node comprises an upper wood-plastic composite column portion (500), a column-column connector portion (600) and a lower wood-plastic composite column portion (700), wherein the upper wood-plastic composite column portion (500) and the lower wood-plastic composite column portion (700) are respectively mounted on upper and lower sides of the column-column connector portion (600); The wood-plastic steel tube concrete multi-component composite column is assembled from an upper wood-plastic composite column part (500) and a wood-plastic composite column part (100) or assembled with an upper wood-plastic composite column part (500) or a lower wood-plastic composite column part (700) of another column-column connection node; The wood-plastic steel tube concrete multi-component composite column and the concrete foundation part (300) are respectively assembled with the column-foundation connection node, and then the column-column connection node is assembled with the wood-plastic steel tube concrete multi-component composite column to form the wood-plastic steel tube concrete multi-component composite column connection structure.

2. A wood-plastic multi-component composite column connection structure as claimed in claim 1, characterized in that: The wood-plastic composite column part (100) comprises a steel pipe (16), a column embedded anchor bolt (3) and an outer sleeve connector (400). The steel pipe (16) is sleeved on the outer sleeve connector (400). A notch is provided on the steel pipe (16) to obtain a grooved steel pipe (2). One end of the grooved steel pipe (2) extends downwardly to the wood-plastic steel tube concrete multi-component composite column (13) for placing the column embedded anchor bolt (3). The threaded end of the column embedded anchor bolt (3) extends from the wall of the grooved steel pipe (2) for forming a stable connection point with the concrete (10) after the concrete (10) in the concrete foundation part (300) is completely solidified.

3. A wood-plastic multi-component composite column connection structure as claimed in claim 2, characterized in that: After one end of the grooved steel pipe (2) and the concrete (10) are completely solidified, the wood-plastic composite column portion (100) and the concrete (10) form a steel tube concrete column (1). The outer sleeve connector (400) comprises a steel sleeve (5) and a flange plate (4) welded to the steel sleeve (5). The steel sleeve (5) is used to fit the grooved steel pipe (2).

4. A wood-plastic multi-component composite column connection structure as claimed in claim 3, characterized in that: The column base connector part (200) comprises a steel sleeve with a channel (7) and a flange plate (4) welded to the upper and lower sides of the steel sleeve with a channel (7); the four sides of the flange plate (4) and the steel sleeve with a channel (7) are provided with slots (18) at positions corresponding to the pre-embedded anchor bolts (3) in the column of the wood-plastic composite column part (100); the steel sleeve with a channel (7) is inserted and engaged with the steel tube concrete column (1) through an inner cavity; and the flange plate (4) is fixed to the concrete (10) through the pre-embedded pull-out anchor bolts (8).

5. A wood-plastic multi-component composite column connection structure as claimed in claim 4, characterized in that: The concrete foundation part (300) is composed of an anti-pullout pre-embedded anchor bolt (8), a longitudinal locking nut (9), concrete (10) and a transverse locking nut (11); the concrete (10) is equipped with an anti-pullout pre-embedded anchor bolt (8) for connecting with the column base connector part (200); a hole groove (19) for concrete grouting is reserved at the center position of the concrete (10); the longitudinal locking nut (9) is locked with the anti-pullout pre-embedded anchor bolt (8) for connecting the flange plate (4) of the column base connector part (200) and the flange plate (4) of the outer sleeve connector (400) together to longitudinally lock the column; the transverse locking nut (11) is locked with the embedded bolt (3) in the column for fastening the embedded anchor bolt (3) in the column and the column base connector part (200) to form a transverse locking of the column.

6. A wood-plastic multi-component composite column connection structure as claimed in claim 3, characterized in that: The upper wood-plastic composite column part (500) comprises an upper wood-plastic steel tube concrete multi-component composite column body (12), a grooved steel pipe (2) and an outer sleeve connector (400); the grooved steel pipe (2) is sleeved on the upper wood-plastic steel tube concrete multi-component composite column body (12), and the outer sleeve connector (400) is sleeved on the grooved steel pipe (2).

7. A wood-plastic multi-component composite column connection structure as claimed in claim 6, characterized in that: The lower wood-plastic composite column part (700) comprises a lower wood-plastic steel tube concrete multi-component composite column body (13), a grooved steel pipe (2) and an outer sleeve connector (400), wherein the grooved steel pipe (2) is sleeved on the lower wood-plastic steel tube concrete multi-component composite column body (13), and the outer sleeve connector (400) is sleeved on the grooved steel pipe (2).

8. A wood-plastic multi-component composite column connection structure as claimed in claim 7, characterized in that: The column-to-column connector part (600) comprises an inner cavity steel sleeve (15) and two flange plates (4) mounted on the upper and lower sides of the inner cavity steel sleeve (15); a reinforcing plate (14) is provided between the two flange plates (4) and the inner cavity steel sleeve (15); the inner cavity steel sleeve (15) is used to fit the grooved steel pipe (2) of the upper wood-plastic composite column part (500) and the lower wood-plastic composite column part (700); the flange plate (4) of the outer sleeve connector (400) and the flange plate (4) of the inner cavity steel sleeve (15) are locked by high-strength bolts (17) and longitudinal locking nuts (9).

9. A wood-plastic multi-component composite column connection structure as claimed in claim 8, characterized in that: The reinforcing auxiliary plates (14) are welded to the four sides and four corners of the inner cavity steel sleeve (15); the inner cavity shape of the inner cavity steel sleeve (15) matches the cross-sectional shape of the steel pipe (16).

10. A wood-plastic multi-component composite column connection structure according to any one of claims 6 to 9, characterized in that: The grooved steel pipe (2) and the outer sleeve connector (400) are assembled and then welded.

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