Novel fabricated concrete column-beam joint connecting structure

Abstract

The utility model provides a novel assembly type concrete column beam joint connecting structure which comprises a concrete column and a concrete beam, the concrete column is connected with the concrete beam, the middle end of the periphery of the concrete column is connected with a steel sleeve, and the centers of the front, rear, left and right sides of the steel sleeve are connected with steel sleeve brackets. A plurality of high-strength bolt preformed holes are formed in the steel sleeve corbel at equal intervals, the steel sleeve corbel is in an I-shaped plate shape, I-shaped preformed holes are formed in the concrete beams, the concrete beams are connected with the steel sleeve corbel through the I-shaped preformed holes, and the top end and the bottom end of the steel sleeve corbel are connected with the concrete beams through Z-shaped laminated slabs and a plurality of high-strength bolts. Triangular rib plates are welded in the middles of the surfaces of the ends, close to the steel sleeve, of the Z-shaped laminated plates. The novel fabricated concrete column-beam joint connecting structure solves the problems existing in a traditional connecting mode, and has the advantages that possible uneven stress of steel bar connecting points is reduced, better connecting strength is provided, and construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of structural engineering technology, and more specifically, to a novel prefabricated concrete column-beam joint connection structure. Background Technology

[0002] Currently, most civil buildings still use reinforced concrete structures. This traditional structural form results in heavy buildings that require significant human resources, have long construction cycles, and consume substantial environmental resources. my country currently offers various connection methods for prefabricated concrete columns and beams, which can be categorized based on their structural form and usage characteristics. For example, one common connection method is rebar connection, which involves threading the ends of rebars and using connectors (such as threaded sleeves) to tighten two rebars together. This method offers high connection strength, good reliability, is suitable for high-strength rebars, and has no strict requirements on lap length. Designing a reasonable and efficient new connection method can reduce energy consumption and construction waste during the prefabricated building construction process, while also ensuring structural safety and shortening the construction cycle. This has become an urgent problem to be solved in the field of prefabricated buildings.

[0003] Among the various methods of steel reinforcement connection, steel reinforcement has many advantages, which can meet structural requirements and reduce energy consumption. However, it also has its shortcomings. It requires the use of special tools and equipment for processing, and the construction process is relatively complex. Traditional beam-column joint connection structures usually use concrete pouring or steel reinforcement connection, but these structures have some problems, such as uneven stress at the steel reinforcement connection points during the steel reinforcement connection process.

[0004] This utility model's prefabricated concrete beam-column joint connection structure solves the problems of traditional connection methods by using a combination of concrete beams and columns, steel sleeves, and high-strength bolts. It has the advantages of reducing the potential uneven stress at the rebar connection points, providing better connection strength, and improving construction efficiency. Utility Model Content

[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a new type of prefabricated concrete column-beam joint connection structure. The purpose is to provide a new type of prefabricated concrete beam-column joint connection structure that is simple in structure, reasonable in design, and convenient in use. By combining and optimizing the advantages of steel bar and concrete connection, the proposed prefabricated concrete beam-column joint connection structure can reduce the problem of high construction precision requirements while ensuring structural safety, low energy consumption, and saving manpower.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel prefabricated concrete column-beam joint connection structure, comprising: a concrete column and a concrete beam, wherein the concrete column is connected to the concrete beam, a steel sleeve is connected to the middle of the outer perimeter of the concrete column, and steel sleeve brackets are connected to the center of the front, back, left, and right sides of the steel sleeve, and multiple high-strength bolt pre-drilled holes are equidistantly provided on the steel sleeve brackets, the steel sleeve brackets are in the shape of an I-beam, the concrete beam has I-shaped pre-drilled holes, the concrete beam is connected to the steel sleeve brackets through the I-shaped pre-drilled holes, the top and bottom ends of the steel sleeve brackets are connected to the concrete beam through Z-shaped composite plates and multiple high-strength bolts, and a triangular rib is welded to the middle of the surface of the Z-shaped composite plate near the steel sleeve.

[0007] A further preferred embodiment: the steel sleeve has multiple through-bolt pre-drilled holes at equal intervals at both ends, and the through-bolt pre-drilled holes on the steel sleeve are respectively used to connect the through-bolts to the concrete column.

[0008] A further preferred embodiment: The steel sleeve includes a left steel sleeve and a right steel sleeve. The left steel sleeve and the right steel sleeve have the same dimensions in terms of length, width, height and thickness. The steel sleeve bracket surfaces that fit together on the left steel sleeve and the right steel sleeve are tightly connected to each other by high-strength bolts through multiple high-strength bolt pre-drilled holes.

[0009] A further preferred embodiment: the left and right steel sleeves are provided with multiple through-hole high-strength bolts at equal intervals, and the width, height and thickness of the through-hole high-strength bolts on the left and right steel sleeves are consistent.

[0010] A further preferred embodiment: the Z-shaped composite plate is fixed to the steel sleeve bracket and the steel sleeve to distribute the force evenly.

[0011] A further preferred embodiment: the steel sleeve bracket is connected by high-strength bolts to form a steel sleeve with brackets.

[0012] A further preferred embodiment: the triangular rib is shaped like a triangle with the left side higher than the right side, and the higher side of the triangular rib is welded to the side of the steel sleeve.

[0013] Beneficial effects:

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This novel connection structure adopts a combination of concrete beams and columns, steel sleeves, and high-strength bolts, and is finally fixed with Z-shaped composite plates and triangular ribs. First, a set of bolt holes is pre-embedded in the middle of the concrete column, and then the steel sleeve is connected to the concrete column. Second, the steel sleeve has special holes that match the pre-embedded bolt holes. By passing high-strength through bolts through the holes and tightening them, the connection between the concrete column and the steel sleeve can be achieved. Pre-embedded holes for high-strength through bolts are made in the steel sleeve brackets, and the steel sleeve brackets are connected by through bolts. The steel sleeve brackets are inserted into the I-shaped pre-embedded holes in the concrete beam, and then Z-shaped composite plates are stacked on top and bottom of the concrete beam, connected with high-strength bolts, and finally reinforced with welded triangular ribs. Compared with traditional steel bar connections or concrete pouring... Compared to traditional construction methods, this prefabricated concrete beam-column joint connection structure has the following advantages: First, the combination of concrete beams and columns, steel sleeves, and high-strength bolts reduces the potential for uneven stress at the rebar connection points. Second, the combination of concrete beams and columns, steel sleeves, and high-strength bolts provides better connection strength, preventing bolt loosening. Furthermore, the special holes in the steel sleeves enable rapid and accurate beam-column connections, improving construction efficiency. Therefore, this new prefabricated concrete beam-column joint connection structure solves the problems of traditional connection methods by using a combination of concrete beams and columns, steel sleeves, and high-strength bolts; it offers advantages such as reducing potential uneven stress at rebar connection points, providing better connection strength, and improving construction efficiency.

[0015] In summary, this novel connection structure can significantly shorten construction time and provide higher connection strength and stability. In this invention, the steel sleeve is connected to the concrete column via high-strength bolts. High-strength bolt holes are pre-drilled on the steel sleeve bracket, connecting the steel sleeve bracket to the steel sleeve to form a steel sleeve with a bracket. The steel sleeve bracket is inserted into the beam concrete through I-shaped pre-drilled holes, and connected to the Z-shaped composite plate via high-strength bolt pre-drilled holes. Triangular ribs are welded to the sides of the concrete column and the steel sleeve. This connection structure can also be designed and optimized according to specific engineering requirements to meet the needs of different projects. Furthermore, it has good seismic performance, reduces a significant amount of on-site work, and facilitates on-site assembly. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the connection between the concrete column and the concrete beam of this utility model.

[0017] Fig. 2 This is a schematic diagram of the steel sleeve of this utility model and the reserved hole installed on the steel sleeve.

[0018] Fig. 3This is a schematic diagram of the triangular rib plate and Z-shaped composite plate of this utility model.

[0019] Figs. 1-3 In the middle: 1. Concrete column; 2. Concrete beam; 3. Steel sleeve; 4. Steel sleeve bracket; 5. High-strength bolt; 6. Through high-strength bolt; 7. Triangular rib; 8. Through high-strength bolt pre-drilled hole; 9. High-strength bolt pre-drilled hole; 10. Z-shaped composite plate; 11. Left steel sleeve; 12. Right steel sleeve. Detailed Implementation

[0020] The following will refer to the appendix in the embodiments of this utility model. Figs. 1-3 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0021] Please see Figs. 1-3 In this embodiment of the present invention, a novel prefabricated concrete column-beam joint connection structure includes: a concrete column 1, serving as a vertical load-bearing component to bear the vertical load of the building; a concrete beam 2, serving as a horizontal load-bearing component, connected to the concrete column 1 to share the horizontal and part of the vertical load of the building; a steel sleeve 3, installed at the center of the outer perimeter of the concrete column 1, providing a robust metal shell to enhance the rigidity and load-bearing capacity of the joint area, while also providing fixing points for other connecting components; steel sleeve brackets 4 are connected to the center of the front, back, left, and right sides of the steel sleeve 3, the steel sleeve brackets 4 being I-beam shaped, their I-beam design increasing the bending and shear resistance of the joint and ensuring the stability of the connection; multiple high-strength bolt pre-drilled holes 9 are equidistantly provided on the steel sleeve brackets 4 for connecting the concrete beam 2 to the steel sleeve brackets 4 with high-strength bolts 5; high-strength bolts 5 are used to connect the concrete beam 2 to the steel sleeve brackets 4. Bolt 5 passes through the high-strength bolt pre-drilled hole 9 on the steel sleeve bracket 4, connecting the concrete beam 2 and the steel sleeve bracket 4, providing a high-strength mechanical connection to ensure the stability and load-bearing capacity of the joint; the concrete beam 2 has an I-shaped pre-drilled hole that matches the shape of the steel sleeve bracket 4, ensuring that the two can fit tightly together. The concrete beam 2 is connected to the steel sleeve bracket 4 through the I-shaped pre-drilled hole. The top and bottom ends of the steel sleeve bracket 4 are connected to the concrete beam 2 through Z-shaped composite plates 10 and multiple high-strength bolts 5. The Z-shaped composite plates 10 are located at the top and bottom ends of the steel sleeve bracket 4 and are connected to the concrete beam 2 through high-strength bolts 5, enhancing the integrity and rigidity of the connection and preventing slippage or misalignment at the connection; the triangular rib plate 7 is welded to the middle of the surface of the Z-shaped composite plate 10 near the end of the steel sleeve 3, further strengthening the local strength of the connection and improving the shear resistance and stability of the joint.

[0022] Please see Figs. 1-2In this embodiment of the invention, both the concrete column 1 and the steel sleeve 3 are provided with multiple through-holes 8 for high-strength bolts at equal intervals, ensuring that the position of each hole corresponds precisely. The through-holes 8 on the steel sleeve 3 are respectively matched with through-holes 6 to connect to the concrete column 1. The through-holes 8 are equidistantly located on the concrete column 1 and the steel sleeve 3 for inserting through-holes 6, achieving a firm connection between the concrete column 1 and the steel sleeve 3. This design not only enhances the overall integrity of the joint but also improves its shear and tensile strength. The through-holes 6 pass through the through-holes 8 on the concrete column 1 and the steel sleeve 3, and then the nuts are tightened to ensure a tight connection, providing a high-strength mechanical connection and ensuring the stability and load-bearing capacity between the concrete column 1 and the steel sleeve 3. The design of the through-holes 6 allows it to withstand significant tensile forces. This connection method not only provides strong mechanical strength but also ensures the tightness and stability of the connection, preventing loosening due to vibration or external forces. Through the connection of the high-strength bolts 6, the concrete column 1 and the steel sleeve 3 form a strong, rigid, and integrated node structure, effectively improving the node's load-bearing capacity and seismic performance. The prefabricated holes 8 for the high-strength bolts make on-site installation more convenient, reducing the need for on-site welding, shortening the construction cycle, and reducing construction difficulty. The high-strength bolts 6 have good fatigue resistance and corrosion resistance, maintaining a stable connection effect during long-term use and extending the node's service life. This connection method simplifies the construction process and improves the safety and durability of the node, making it suitable for widespread application in modern prefabricated buildings.

[0023] Please see Figs. 1-2In this embodiment of the utility model, the steel sleeve 3 includes a left steel sleeve 11 and a right steel sleeve 12. The length, width, height, and thickness of the left steel sleeve 11 and the right steel sleeve 12 are all consistent, ensuring that the two can fit perfectly together to form a complete steel sleeve 3. This design not only simplifies the manufacturing process (allowing for mass production of identical parts) but also facilitates on-site installation and adjustment. The surfaces of the steel sleeve brackets 4 on the left steel sleeve 11 and the right steel sleeve 12 that fit together are tightly connected to each other by multiple high-strength bolt pre-drilled holes 9 and high-strength bolts 5. Through the high-strength bolt pre-drilled holes 9 and the high-strength bolts 5 on the steel sleeve brackets 4, the high-strength bolt pre-drilled holes 9 ensure a stable and reliable connection between the left steel sleeve 11 and the right steel sleeve 12, enhancing the integrity and load-bearing capacity of the entire steel sleeve 3. The high-strength bolts 5 pass through the high-strength bolt pre-drilled holes 9 on the steel sleeve brackets 4, connecting the left steel sleeve 11 and the right steel sleeve 12. The high-strength bolts 5, when joined together, provide a high-strength mechanical connection, ensuring the stability and load-bearing capacity of the internal structure of the steel sleeve 3. The high-strength bolts 5 are designed to withstand significant tensile and shear forces, thus guaranteeing the safety and reliability of the joint. This connection method between the left and right steel sleeves 11 and 12 not only provides strong mechanical strength but also ensures the tightness and stability of the connection, preventing loosening due to vibration or external forces. The tight combination of the left and right steel sleeves 11 and 12 forms a strong, rigid steel sleeve 3, effectively improving the load-bearing capacity and seismic performance of the joint. Since the left and right steel sleeves 11 and 12 are of the same size, on-site installation is more convenient, reducing the need for complex assembly, shortening the construction cycle, and lowering the construction difficulty. The high-strength bolts 5 have excellent fatigue resistance and corrosion resistance, maintaining a stable connection effect during long-term use and extending the service life of the joint.

[0024] Please see Figs. 1-2 In this embodiment of the invention, the left steel sleeve 11 and the right steel sleeve 12 are provided with multiple through-holes 8 for high-strength bolts at equal intervals, ensuring that the position of each hole corresponds precisely, facilitating the insertion and fixing of the through-holes 6, and improving the consistency and reliability of the connection. The width, height, and thickness of the through-holes 8 for high-strength bolts on the left steel sleeve 11 and the right steel sleeve 12 are all consistent. This design ensures that the geometric dimensions of all holes are exactly the same, allowing the through-holes 6 to pass through smoothly and achieve a uniform distribution of mechanical stress, avoiding installation difficulties or uneven stress caused by inconsistent dimensions. Through the connection of the through-holes 6, the left steel sleeve 11 and the right steel sleeve 12 form a node structure with strong integrity and high rigidity, effectively improving the load-bearing capacity and seismic performance of the node. The prefabricated through-holes 8 for high-strength bolts make on-site installation more convenient, reduce the need for on-site welding, shorten the construction cycle, and reduce the construction difficulty.

[0025] Please see Fig. 3 andFig. 1 In this embodiment of the invention, the Z-shaped composite plate 10 is fixed to the steel sleeve bracket 4 and the steel sleeve 3, thus distributing the stress evenly. The Z-shaped composite plate 10 is located at both the top and bottom ends of the steel sleeve bracket 4 and is connected to the concrete beam 2 by high-strength bolts 5. The Z-shaped composite plate 10 is Z-shaped, and this special geometric shape enhances its shear resistance. The Z-shaped composite plate 10 not only increases the integrity and rigidity of the connection, but also further disperses the stress in the node area through its unique design. Through this fixed connection between the Z-shaped composite plate 10 and the steel sleeve bracket 4 and the steel sleeve 3, the Z-shaped composite plate 10, the steel sleeve bracket 4, and the steel sleeve 3 can jointly bear the stress. The forces exerted by the concrete beam 2 and other external loads ensure the stability and safety of the entire node structure. The fixed connection between the Z-shaped composite slab 10, the steel sleeve bracket 4, and the steel sleeve 3 forms a robust whole, improving the load-bearing capacity and seismic performance of the node. Through the special design of the Z-shaped composite slab 10 and its tight connection with the steel sleeve bracket 4 and the steel sleeve 3, the stress in the node area can be evenly distributed, avoiding local stress concentration and improving the safety and durability of the node. The prefabricated Z-shaped composite slab 10 and the steel sleeve bracket 4 make on-site installation more convenient, reduce the need for complex assembly, shorten the construction cycle, and reduce the construction difficulty.

[0026] Please see Figs. 1-2 In this embodiment of the utility model, the steel sleeve bracket 4 is connected by high-strength bolts 5 to form a steel sleeve 3 with brackets. The two components are connected by high-strength bolts 5 and high-strength bolt pre-drilled holes 9 on the brackets to form a steel outer sleeve 3 with brackets. The figure shows the case of a central column beam-column joint, which can be connected to four beams. Side columns and corner columns can be connected to two or three beams by simply changing the arrangement of the brackets. There is a steel sleeve bracket 4 in the center of each of the four sides of the steel sleeve 3. This connection method between the steel sleeve bracket 4 and the steel sleeve 3 not only provides strong mechanical strength, but also ensures the tightness and stability of the connection, preventing loosening due to vibration or external force. The prefabricated steel sleeve bracket 4 and steel sleeve 3 make on-site installation more convenient, reduce the need for complex assembly, shorten the construction cycle and reduce the construction difficulty. If it is necessary to adjust the position or length of the steel sleeve bracket 4, it can be finely adjusted by loosening the high-strength bolts 5 and then tightening the nuts to ensure the accuracy of the connection.

[0027] Please see Fig. 3 and Fig. 1In this embodiment of the invention, the triangular rib 7 is shaped like a triangle with the left side higher than the right. This inclined design helps to better distribute stress, allowing the force to be transmitted along the inclined surface of the triangular rib 7, thereby more effectively dispersing the load and avoiding local stress concentration. The high side of the triangular rib 7 is welded to the side of the steel sleeve 3, and the triangular rib 7 and the steel sleeve 3 are connected by welding. Due to the special shape and welding position of the triangular rib 7, the connecting plate forms a T-shaped cross section, which enhances the integrity and rigidity of the node area and has sufficient bending stiffness. Setting the triangular rib 7 not only better conforms to the design assumptions of the engineering, but also can more effectively control deformation. Through reasonable design and arrangement, the triangular rib 7 can significantly improve the mechanical performance of the node and optimize the performance of the entire structure without adding too much weight. The steel sleeve 3 with the triangular rib 7 can be prefabricated in the factory, and only simple assembly is required on site, reducing construction difficulty and time.

[0028] This novel connection structure employs an innovative design concept and advanced connection technology, aiming to improve the strength and stability of the structure. The working principle of this specific implementation is as follows: First, this connection method utilizes special connectors, such as high-strength bolts 5 and through-bolts 6. These connectors tightly connect the various parts of the beam-column joint, ensuring the integrity and stability of the structure. Second, this connection method also employs a Z-shaped composite plate 10 and triangular rib plate 7 connection form. During the connection process, the various parts of the beam-column joint are more strongly connected and can be assembled on-site. This structural design combining concrete beams and columns, steel sleeves 3, and high-strength bolts 5 can significantly reduce construction time. This new type of prefabricated concrete beam-column joint connection structure improves structural strength, stability, and ease of installation through innovative design and advanced connection technology. It not only meets the construction industry's requirements for high quality and efficiency but also contributes to building safety and sustainable development. It is believed that this connection method will be more widely used and promoted in the future construction field. Furthermore, it considers the structural disassembly, allowing for repairs or replacements of beam-column joints during building use without affecting the overall structure. In summary, this new type of prefabricated concrete beam-column joint connection structure not only improves structural strength, stability, and ease of installation through innovative design and advanced connection technology.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that this invention can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel prefabricated concrete column-beam joint connection structure, comprising: A concrete column (1) and a concrete beam (2), wherein the concrete column (1) is connected to the concrete beam (2), characterized in that: a steel sleeve (3) is connected to the middle of the outer periphery of the concrete column (1), and a steel sleeve bracket (4) is connected to the center of the front, back, left and right sides of the steel sleeve (3), and multiple high-strength bolt pre-drilled holes (9) are equidistantly opened on the steel sleeve bracket (4), the steel sleeve bracket (4) is in the shape of an I-beam, the concrete beam (2) is provided with an I-shaped pre-drilled hole, the concrete beam (2) is connected to the steel sleeve bracket (4) through the I-shaped pre-drilled hole, and the top and bottom ends of the steel sleeve bracket (4) are connected to the concrete beam (2) through a Z-shaped composite plate (10) and multiple high-strength bolts (5), and a triangular rib plate (7) is welded to the middle of the surface of the Z-shaped composite plate (10) near the steel sleeve (3).

2. The novel prefabricated concrete column-beam joint connection structure according to claim 1, characterized in that: The concrete column (1) and the steel sleeve (3) are both provided with multiple through high-strength bolt pre-drilled holes (8) at equal intervals. The through high-strength bolt pre-drilled holes (8) on the steel sleeve (3) are respectively connected to the concrete column (1) with through high-strength bolts (6).

3. The novel prefabricated concrete column-beam joint connection structure according to claim 1, characterized in that: The steel sleeve (3) includes a left steel sleeve (11) and a right steel sleeve (12). The left steel sleeve (11) and the right steel sleeve (12) have the same dimensions in terms of length, width, height and thickness. The steel sleeve brackets (4) on the left steel sleeve (11) and the right steel sleeve (12) are closely connected to each other through multiple high-strength bolt pre-drilled holes (9) and high-strength bolts (5).

4. A novel prefabricated concrete column-beam joint connection structure according to claim 3, characterized in that: The left steel sleeve (11) and the right steel sleeve (12) are provided with multiple through high-strength bolt pre-reserved holes (8) at equal intervals. The width, height and thickness of the through high-strength bolt pre-reserved holes (8) on the left steel sleeve (11) and the right steel sleeve (12) are consistent.

5. A novel prefabricated concrete column-beam joint connection structure according to claim 1, characterized in that: The Z-shaped composite plate (10) is fixed to the steel sleeve bracket (4) and the steel sleeve (3) to share the force.

6. The novel prefabricated concrete column-beam joint connection structure according to claim 1, characterized in that: The steel sleeve bracket (4) is connected by high-strength bolts (5) to form a steel sleeve (3) with brackets.

7. A novel prefabricated concrete column-beam joint connection structure according to claim 1, characterized in that: The triangular rib (7) is in the shape of a triangle with the left side higher than the right side, and the high side of the triangular rib (7) is welded to the side of the steel sleeve (3).

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