Ultra-high performance concrete steel connection node frame structure

Abstract

The invention provides an ultra-high performance concrete steel connection joint frame structure, and relates to the technical field of building structures. The connecting structure comprises a composite beam, a composite column and a connecting node, the end of the composite beam and the end of the composite column are connected with the connecting node, the composite beam comprises a beam main body, the composite column comprises a column main body, the beam main body and the column main body are both made of ultra-high performance concrete, and the connecting node is made of steel. Beam bodies and column bodies made of ultra-high performance concrete serve as stress bodies of the frame structure, connecting joints made of steel serve as core connecting parts, the beam bodies and the column bodies are combined to achieve material advantage complementation, and the advantages of steel and concrete structures are considered. The advantages of fast construction, short construction period, high cyclic utilization rate and low carbon of a steel structure are inherited, the characteristics of fire prevention, durability and low manufacturing cost of a concrete structure are reserved, and the steel structure and the concrete structure act synergistically, so that the frame has good structural strength, space can be saved, shock resistance is improved, and structural safety is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of building structure technology, and in particular to an ultra-high performance concrete steel connection node frame structure. Background Technology

[0002] In the field of building engineering, frame structure is one of the most widely used structural forms. Currently, the mainstream frame structures are mainly divided into two categories: steel frame structure and concrete frame structure. However, both types of structures have their own insurmountable technical defects, which cannot simultaneously meet the comprehensive requirements of building engineering for cost, construction efficiency, fire resistance, durability and environmental protection, thus limiting their promotion and application in various building scenarios.

[0003] Traditional steel structure buildings are widely used in large-span, high-rise, and industrial buildings due to their significant advantages such as light component weight, high construction efficiency, short construction period, high recycling rate, and low carbon emissions. However, they also have prominent technical shortcomings: on the one hand, the cost of steel structure materials is relatively high, resulting in a higher overall building cost and increasing project investment costs; on the other hand, steel has poor fire resistance and is prone to deformation and instability in high-temperature environments, requiring additional complex fire protection measures, which further increases construction difficulty and cost; in addition, steel is prone to corrosion when exposed to the natural environment for a long time, leading to a decrease in structural durability and requiring regular maintenance, resulting in high subsequent maintenance costs.

[0004] Compared to steel structures, traditional concrete structures have advantages such as good fire resistance, excellent durability, and relatively low cost, and are widely used in civil buildings and multi-story buildings. However, they also have obvious shortcomings: the construction process of concrete structures is complex, and the amount of on-site pouring work is large, resulting in slow construction speed and difficulty in meeting the needs of projects with tight schedules; at the same time, concrete structure materials are difficult to recycle and the recycling rate is low, and the construction waste generated after the demolition of the building is difficult to effectively reuse, resulting in resource waste; in addition, the concrete production process generates a large amount of carbon emissions, which is inconsistent with the current industry trend of green building and low-carbon development.

[0005] In order to combine the advantages of steel and concrete structures and overcome their shortcomings, those skilled in the art have attempted to develop composite structures. However, existing composite structures mostly use ordinary concrete and steel in a simple combination, which fails to give full play to the core advantages of the two materials. They either cannot effectively reduce costs, improve fire resistance and durability, or cannot guarantee construction efficiency and structural stability, and cannot fundamentally solve the various problems existing in traditional structures. Summary of the Invention

[0006] The purpose of this invention is to provide an ultra-high performance concrete-steel connection node frame structure to solve the technical problems existing in the prior art. The various technical effects of the preferred technical solutions among the many technical solutions provided by this invention are detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A high-performance concrete steel connection node frame structure includes composite beams, composite columns, and connection nodes. The ends of the composite beams and the ends of the composite columns are connected to the connection nodes. The composite beams include a beam body, and the composite columns include a column body. Both the beam body and the column body are made of high-performance concrete, and the connection nodes are made of steel.

[0009] Preferably, the connection node includes a node body, a beam connection portion, and a column connection portion, at least one of the beam connection portions is connected to the side of the node body, and a column connection portion is connected to the top and / or bottom of the node body.

[0010] Preferably, the composite beam further includes a beam connector, with each end of the beam body connected to one of the beam connectors. The beam connectors are made of steel, and any end of the beam body can be connected to the corresponding beam connection part on the connection node through the corresponding beam connector.

[0011] Preferably, the combined column further includes a column connector, with each end of the column body connected to one of the column connectors. The column connectors are made of steel, and any end of the column body can be connected to the corresponding column connection part on the connection node through the corresponding column connector.

[0012] Preferably, the cross-sectional shape of the main beam is a standard H-shape or H-like shape, and the lower flange plate of the main beam is provided with tensile members.

[0013] Preferably, the cross-sectional shape of the column body is a hollow square or a solid square, and the interior of the column body is provided with reinforcing members.

[0014] Preferably, the beam connector includes a connected beam connecting segment and a first node connecting segment. The beam connecting segment is connected to the end of the beam body. An anchor bolt for connection is pre-set inside the beam connecting segment. The first node connecting segment is inserted into the beam connecting part. A connection hole for connection is pre-set inside the first node connecting segment.

[0015] Preferably, the column connector includes a column connecting section and a second node connecting section connected to each other. The column connecting section is connected to the end of the column body. An anchor bolt for connection is preset inside the column connecting section. The second node connecting section is mated with the column connecting part. A connection hole for connection is preset on the second node connecting section.

[0016] Preferably, it further includes a combined diagonal brace, the end of which is connected to the connection node, the combined diagonal brace including a diagonal brace body, the diagonal brace body being made of ultra-high performance concrete.

[0017] Preferably, the connection node further includes a diagonal brace connection portion, at least one of the diagonal brace connection portions being connected to the side of the node body; The combined diagonal brace also includes a diagonal brace connector. Each end of the diagonal brace body is connected to one of the diagonal brace connectors. The diagonal brace connectors are made of steel. Any end of the diagonal brace body can be connected to the corresponding diagonal brace connection part on the connection node through the corresponding diagonal brace connector.

[0018] The beneficial effects of this invention are as follows: the main beam and column of ultra-high performance concrete can serve as the main load-bearing structure of the frame structure, and the connection nodes of steel can serve as the core connection parts. By combining the main load-bearing structure of ultra-high performance concrete with the connection parts of steel, the advantages of the two materials are complemented, taking into account the core advantages of steel structure and concrete structure.

[0019] It can inherit the advantages of steel structure construction, such as high efficiency, short construction period, high recycling rate and low carbon emissions. By using the factory prefabrication and rapid on-site assembly of steel connecting components, it can improve construction efficiency and achieve recycling, which is in line with the requirements of low-carbon development.

[0020] It retains the advantages of concrete structures, such as good fire resistance, excellent durability, and low cost, while ensuring the fire resistance and durability of the frame and reducing the overall cost through ultra-high performance concrete load-bearing main body.

[0021] In addition, the synergistic effect of the two materials gives the frame both high load-bearing capacity, bending and lateral stiffness to adapt to different building needs, and excellent assemblability and connection reliability, which facilitates factory prefabrication and on-site construction. Furthermore, ultra-high performance concrete can reduce the volume of components and save space, while steel connection nodes can improve the seismic performance and spatial integrity of the frame, ensuring structural safety and stability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a connection structure diagram of the composite beam, composite column, and connection node of the present invention; Figure 2 This is an external structural diagram of the composite beam of the present invention; Figure 3 This is a diagram of the internal structure of the composite beam of the present invention; Figure 4 This is a cross-sectional view of the beam body of the present invention, with a standard H-shaped cross-section. Figure 5 This is a cross-sectional view of the beam body of the present invention, which has an H-shaped cross-section. Figure 6 This is an external structural diagram of the combined column of the present invention; Figure 7 This is a diagram of the internal structure of the combined column of the present invention; Figure 8 This is a cross-sectional view of the column body of the present invention, which has a hollow square cross-section. Figure 9 This is a cross-sectional view of the column body of the present invention, which has a solid square cross-section. Figure 10 This is a structural diagram of the present invention without the connection node of the combined diagonal brace; Figure 11 This is a connection structure diagram of the composite beam, composite column, composite brace and connection node of the present invention; Figure 12 This is a structural diagram of the connection node of the present invention, which is connected with a combined diagonal brace.

[0024] In the diagram: 1. Composite beam; 11. Beam body; 111. Tensile member; 12. Beam connector; 121. Beam connection segment; 122. First node connection segment; 2. Composite column; 21. Column body; 211. Reinforcing member; 22. Column connector; 221. Column connection section; 222. Second node connection section; 3. Connection node; 31. Node body; 32. Beam connection; 33. Column connection; 34. Diagonal brace connection; 4. Combined diagonal brace; 41. Diagonal brace main body; 42. Diagonal brace connector. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0026] In the description of this invention, it should be understood that the terms "center," "side," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0027] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Reference Figures 1 to 12 The present invention provides an ultra-high performance concrete steel connection node frame structure, including a composite beam 1, a composite column 2 and a connection node 3, which together form the load-bearing main body of the frame structure.

[0029] The ends of composite beam 1 and composite column 2 are connected to connection node 3. Connection node 3 is the core connection component. The three work together to form a spatial frame system. The number, spacing and orientation of composite beam 1 and composite column 2 can be flexibly arranged according to the actual floor height, span and load-bearing requirements of the building.

[0030] The composite beam 1 includes a beam body 11, and the composite column 2 includes a column body 21. Both the beam body 11 and the column body 21 are made of ultra-high performance concrete, and the connection node 3 is made of steel.

[0031] Ultra-high performance concrete (UHVPC) is relatively cheaper than steel and has high strength, allowing for reductions in component cross-sectional dimensions and material usage, significantly lowering overall construction costs and solving the problems of high costs and large investment associated with traditional steel structures. Furthermore, UHVPC possesses excellent fire resistance, is not easily deformed or unstable under high temperatures, and eliminates the need for complex fire protection measures, reducing construction difficulty and further saving costs, thus addressing the poor fire resistance of traditional steel structures. In addition, UHVPC exhibits exceptional durability, with outstanding corrosion and aging resistance, avoiding the corrosion problems common to traditional steel structures exposed to the natural environment for extended periods. This significantly reduces post-construction maintenance costs, extends the structural lifespan, and solves the problem of poor durability inherent in traditional steel structures.

[0032] Steel is easy to process and has high forming precision, allowing for standardized prefabrication in factories. On-site assembly is minimal, significantly simplifying construction procedures, reducing on-site pouring work, and dramatically increasing construction speed and shortening the construction period. This meets the needs of projects with tight schedules and solves the problem of slow construction speed in traditional concrete structures. Furthermore, it allows for recycling, with low recycling difficulty and a high recycling rate. Ultra-high performance concrete components can be reused through crushing and recycling, significantly reducing construction waste after demolition and minimizing resource waste. Compared to traditional concrete production, ultra-high performance concrete production has lower carbon emissions, and the recycling of steel further reduces carbon emissions, aligning with current industry trends of green building and low-carbon development, and effectively addressing the high carbon emissions of traditional concrete structures.

[0033] Therefore, the main beam 11 and the main column 21 form the load-bearing structure of the frame structure, and the connection node 3 forms the core connection part. By combining the load-bearing structure of ultra-high performance concrete with the steel connection parts, the advantages of the two materials are complemented, taking into account the core advantages of both steel and concrete structures. It inherits the advantages of steel structures, such as high construction efficiency, short construction period, high recycling rate, and low carbon emissions. Through the factory prefabrication and rapid on-site assembly of steel connection components, construction efficiency is improved, and the recycling of components is realized, which meets the requirements of low-carbon development. It also retains the advantages of concrete structures, such as good fire resistance, excellent durability, and relatively low cost. Through the application of ultra-high performance concrete load-bearing structure, the fire resistance and durability of the frame structure are ensured, while reducing the overall cost.

[0034] Furthermore, the synergistic effect of the two materials gives the frame structure both high load-bearing capacity, bending stiffness, and lateral stiffness, meeting the requirements of different building heights, spans, and load levels, and excellent assemblability and connection reliability, facilitating factory prefabrication and rapid on-site construction, thus improving structural construction efficiency and quality. Meanwhile, the high strength of ultra-high performance concrete reduces component volume, saves building space, and improves building utilization efficiency; the high toughness and reliable connection performance of steel connection nodes effectively enhance the seismic performance and spatial integrity of the frame structure, ensuring the safety and stability of the building structure.

[0035] As an optional implementation, the connecting node 3 includes a node body 31, a beam connecting part 32, and a column connecting part 33.

[0036] The main body of node 31 is located at the center of the connecting node 3, and plays a role in overall support and connection.

[0037] The number of beam connection parts 32 is at least one. At least one beam connection part 32 is connected to the side of the node body 31. The number of beam connection parts 32 can be preset according to the number of combined beams 1 actually connected to the node body 31, and the beam connection parts 32 can be preset at the corresponding positions of the node body 31 according to the actual positions of the combined beams 1.

[0038] A column connection 33 is connected to the top and / or bottom of the node body 31. If the node body 31 is located at the top or bottom of the building structure, the number of column connection 33 can be one, and it is located at the top or bottom of the node body 31. If the node body 31 is not located at the top or bottom of the building structure, but is located in the middle section, the number of column connection 33 can be two, and they are located at both the top and bottom of the node body 31.

[0039] In this embodiment, the node body 31 is connected to all the beam connection parts 32 and all the column connection parts 33 to form an integrated steel component.

[0040] As an optional implementation, the cross-sectional shape of the beam body 11 is a standard H-shape or a similar H-shape, and the lower flange plate of the beam body 11 is provided with tensile members 111.

[0041] By adopting the above structure, on the one hand, the standard H-shaped and H-shaped cross sections can significantly improve the bending stiffness and overall stability of the beam while controlling the self-weight of the components, resulting in reasonable stress distribution and excellent economy.

[0042] On the other hand, the configuration of tensile members 111 in the lower flange plate can effectively enhance the tensile bearing capacity of the beam in the tension zone, improve the stress performance of the beam under bending and shear loads, suppress the development of cracks in the tension zone, and improve the structural strength, durability and safety reserve of the main beam 11.

[0043] In this embodiment, the tensile member 111 is preferably a steel bar, FRP bar, structural steel or other composite material, which can be flexibly selected and set according to the actual stress conditions.

[0044] As an optional implementation, the composite beam 1 also includes a beam connector 12, with each end of the beam body 11 connected to a beam connector 12. The beam connector 12 is made of steel, and any end of the beam body 11 can be connected to the corresponding beam connection part 32 on the connection node 3 through the corresponding beam connector 12.

[0045] Therefore, the beam connector 12 forms the actual connection structure connecting the composite beam 1 and the connection node 3, and the beam connector 12 is preferably made of steel, which makes it easier to connect with the steel connection node 3.

[0046] The composite beam 1 combines the beam body 11 made of ultra-high performance concrete with the beam connector 12 made of steel, giving full play to the excellent compressive strength, high durability and small deformation of ultra-high performance concrete, while taking advantage of the good toughness, convenient processing and reliable joint connection performance of steel, so as to achieve the complementary performance of the two materials.

[0047] This combined structure ensures that the beam has high bending capacity and structural stiffness, while also giving the end beam connector 12 excellent assemblability and connection strength, facilitating quick and reliable docking with other components, which is beneficial to improving the overall structural performance, assembly efficiency and long-term reliability.

[0048] As an optional implementation, the beam connector 12 includes a beam connection segment 121 and a first node connection segment 122 connected to each other. Both the beam connection segment 121 and the first node connection segment 122 are made of steel to form an integral steel component.

[0049] The beam connection segment 121 connects to the end of the beam body 11. During production, the beam connection head 12 can be pre-formed as a whole, and anchor bolts for connection are pre-installed inside the beam connection segment 121. Then, the beam connection heads 12 located at both ends of the beam body 11 are positioned and placed. With the assistance of the formwork system, ultra-high performance concrete is poured to form the beam body 11, simultaneously achieving a reliable connection between the two ends of the beam body 11 and the corresponding beam connection heads 12. This process fully utilizes the advantages of convenient steel structure processing and high forming precision, effectively improving production efficiency and shortening the construction cycle. The pre-embedded anchor bolts can significantly enhance the mechanical interlocking effect of the steel-concrete interface, further improving the integrity and bonding strength between the beam connection head 12 and the beam body 11.

[0050] The first node connecting segment 122 and the beam connecting part 32 are interlocked. In this embodiment, the first node connecting segment 122 is preferably a frame structure. Correspondingly, the mating end of the beam connecting part 32 also adopts a frame structure, and the size of the frame structure of the beam connecting part 32 is smaller than that of the frame structure of the first node connecting segment 122, so that the beam connecting part 32 can be interlocked inside the first node connecting segment 122. The two achieve precise interlocking, which is conducive to the rapid assembly and positioning between the beam connecting part 32 and the beam connecting head 12.

[0051] In addition, the first node connecting section 122 has a pre-set connecting hole for connection, and the beam connecting part 32 also has a pre-set corresponding connecting hole, so that the beam connecting part 32 and the beam connecting head 12 can be connected by bolts passing through the corresponding connecting holes to achieve bolt fastening connection between the two.

[0052] As an optional implementation, the cross-sectional shape of the column body 21 can be a hollow square or a solid square, and the selection and configuration can be flexibly made according to the actual load-bearing requirements and installation conditions.

[0053] The column body 21 is equipped with a reinforcing member 211 inside. The reinforcing member 211 can be a structural component such as steel bar or steel section. By adding the reinforcing member 211 inside the column body 21, the overall rigidity, compressive strength and structural stability of the column body 21 can be effectively improved, thereby enhancing its load-bearing capacity and service life.

[0054] As an optional implementation, the composite column 2 also includes a column connector 22. Each end of the column body 21 is connected to a column connector 22. Any end of the column body 21 can be connected to the corresponding column connection part 33 on the connection node 3 through the corresponding column connector 22. Therefore, the column connector 22 forms an actual connection structure connecting the composite column 2 and the connection node 3. The column connector 22 is preferably made of steel, which makes it easier to connect to the steel connection node 3.

[0055] The composite column 2 combines the column body 21 made of ultra-high performance concrete with the column connector 22 made of steel, giving full play to the characteristics of high strength and excellent durability of ultra-high performance concrete, while taking advantage of the advantages of steel in good toughness, high processing precision and easy node connection, thus achieving complementary advantages of material properties.

[0056] This combined structure ensures that the column itself has high load-bearing capacity and structural rigidity, while also providing good connection reliability and ease of assembly at the end nodes. This effectively improves the overall structural performance, construction efficiency, and long-term service performance, and facilitates the factory prefabrication and rapid on-site assembly of components.

[0057] As an optional implementation, the column connector 22 includes a column connector section 221 and a second node connector section 222 connected to each other. Both the column connector section 221 and the second node connector section 222 are made of steel to form an integral steel component.

[0058] The column connector 221 connects to the end of the column body 21. During production, the column connector 22 can be pre-formed as a whole, and anchor bolts for connection are pre-installed inside the column connector 221. Then, the column connectors 22 located at both ends of the column body 21 are positioned and placed. With the assistance of the formwork system, ultra-high performance concrete is poured to form the column body 21, simultaneously achieving a reliable connection between the two ends of the column body 21 and the corresponding column connectors 22. This process fully utilizes the advantages of convenient steel structure processing and high forming precision, effectively improving production efficiency and shortening the construction cycle. The pre-embedded anchor bolts significantly enhance the mechanical interlocking of the steel-concrete interface, further improving the integrity and bonding strength between the column connector 22 and the column body 21.

[0059] The second node connecting segment 222 and the column connecting part 33 are connected. In this embodiment, the second node connecting segment 222 is preferably a flat-head structure, and the connecting end of the column connecting part 33 also adopts a flat-head structure. The two achieve precise connection through the flat-head end face, which is conducive to the rapid assembly and positioning between the column connecting part 33 and the column connecting head 22.

[0060] In addition, the second node connecting section 222 is pre-set with a connecting hole for connection, and the column connecting part 33 is also pre-set with a corresponding connecting hole, so that the column connecting part 33 and the column connecting head 22 can be connected by bolts passing through the corresponding connecting holes to achieve bolt fastening connection between the two.

[0061] As an optional implementation, the ultra-high performance concrete steel connection node frame structure also includes a composite brace 4, the end of which is connected to the connection node 3.

[0062] To accommodate the installation requirements of the combined diagonal brace 4, the connecting node 3 also includes a diagonal brace connection part 34. At least one diagonal brace connection part 34 is connected to the side of the node body 31. The diagonal brace connection part 34 can be flexibly set at the corresponding position of the node body 31 according to the overall structural layout, force transmission path and support layout angle, so as to meet the connection requirements of different support forms and multi-directional forces.

[0063] The combined diagonal brace 4 includes a diagonal brace body 41 and a diagonal brace connector 42. Each end of the diagonal brace body 41 is connected to a diagonal brace connector 42. Any end of the diagonal brace body 41 can be connected to the corresponding diagonal brace connection part 34 on the connection node 3 through the corresponding diagonal brace connector 42.

[0064] The diagonal brace connector 42 serves as a transitional connection between the combined diagonal brace 4 and the connection node 3, enabling reliable connection and load transfer between the diagonal brace and the node.

[0065] The main body 41 of the diagonal brace is made of ultra-high performance concrete, and the diagonal brace connector 42 is made of steel. The combined diagonal brace 4 combines the diagonal brace main body 41 made of ultra-high performance concrete with the diagonal brace connector 42 made of steel, giving full play to the characteristics of ultra-high performance concrete such as high compressive strength, high stiffness, excellent durability and not easy to deform, while taking advantage of the high processing precision, good toughness and easy on-site assembly and bolt connection of steel, so as to achieve the complementary performance and synergistic force bearing of the two materials.

[0066] This combination ensures that the main body of the diagonal brace 41 has good axial load-bearing capacity and structural stability, while also giving the diagonal brace connector 42 at its end excellent connection performance and ease of assembly. It facilitates quick, accurate and reliable connection with the steel connection node 3, which is beneficial to improving the overall lateral stiffness, seismic performance and spatial integrity of the frame structure. At the same time, it facilitates factory prefabrication and rapid on-site construction, improving the efficiency of structural construction.

[0067] As an optional implementation, the diagonal brace connector 42 includes a diagonal brace connecting section and a third node connecting section connected together. Both the diagonal brace connecting section and the third node connecting section are made of steel, forming an integral steel component.

[0068] The diagonal brace connecting section is connected to the end of the diagonal brace body 41. During production, the diagonal brace connector 42 can be pre-processed and shaped as a whole, and anchor bolts can be pre-embedded inside the diagonal brace connecting section. Then, the diagonal brace connectors 42 at both ends are positioned and placed. With the assistance of the formwork system, ultra-high performance concrete is poured to form the diagonal brace body 41, and the diagonal brace body 41 and the diagonal brace connector 42 are integrated as a whole.

[0069] The pre-embedded anchor bolts enhance the mechanical interlocking and bonding performance of the steel-concrete interface, significantly improving the connection strength and overall performance between the diagonal brace connector 42 and the diagonal brace body 41. This prefabrication process fully utilizes the advantages of simple steel structure processing and high forming efficiency, which helps to shorten the manufacturing cycle and improve the dimensional accuracy of components.

[0070] The third node connecting section and the diagonal brace connecting part 34 are adapted to each other and can be positioned and matched by end face fitting or mutual insertion, which facilitates quick alignment and assembly.

[0071] In addition, the third node connection section and the diagonal brace connection part 34 are both equipped with pre-set connection holes, which can be used to fasten the bolts between the two by passing bolts through the connection holes. The connection is reliable, the construction is convenient, and it is easy to disassemble and maintain in the later stage, which further improves the overall structure and the stress safety of the frame structure.

[0072] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A high-performance concrete steel connection node frame structure, characterized in that, It includes a composite beam (1), a composite column (2) and a connecting node (3). The ends of the composite beam (1) and the ends of the composite column (2) are connected to the connecting node (3). The composite beam (1) includes a beam body (11), and the composite column (2) includes a column body (21). Both the beam body (11) and the column body (21) are made of ultra-high performance concrete, and the connecting node (3) is made of steel.

2. The ultra-high performance concrete steel connection node frame structure according to claim 1, characterized in that, The connection node (3) includes a node body (31), a beam connection part (32) and a column connection part (33), at least one of the beam connection parts (32) is connected to the side of the node body (31), and a column connection part (33) is connected to the top and / or bottom of the node body (31).

3. The ultra-high performance concrete steel connection node frame structure according to claim 2, characterized in that, The composite beam (1) also includes a beam connector (12). Each end of the beam body (11) is connected to a beam connector (12). The beam connector (12) is made of steel. Any end of the beam body (11) can be connected to the corresponding beam connection part (32) on the connection node (3) through the corresponding beam connector (12).

4. The ultra-high performance concrete steel connection node frame structure according to claim 2, characterized in that, The combined column (2) also includes a column connector (22). Each end of the column body (21) is connected to a column connector (22). The column connector (22) is made of steel. Any end of the column body (21) can be connected to the corresponding column connection part (33) on the connection node (3) through the corresponding column connector (22).

5. The ultra-high performance concrete steel connection node frame structure according to claim 1, characterized in that, The cross-sectional shape of the main beam (11) is a standard H-shape or similar H-shape, and the lower flange plate of the main beam (11) is provided with tensile members (111).

6. The ultra-high performance concrete steel connection node frame structure according to claim 1, characterized in that, The cross-sectional shape of the column body (21) is a hollow square or a solid square, and the interior of the column body (21) is provided with reinforcing members (211).

7. The ultra-high performance concrete steel connection node frame structure according to claim 3, characterized in that, The beam connector (12) includes a beam connecting section (121) and a first node connecting section (122) connected to each other. The beam connecting section (121) is connected to the end of the beam body (11). Anchor bolts for connection are preset inside the beam connecting section (121). The first node connecting section (122) is inserted into the beam connecting part (32). A connection hole for connection is preset inside the first node connecting section (122).

8. The ultra-high performance concrete steel connection node frame structure according to claim 4, characterized in that, The column connector (22) includes a column connecting section (221) and a second node connecting section (222) connected to each other. The column connecting section (221) is connected to the end of the column body (21). An anchor bolt for connection is preset inside the column connecting section (221). The second node connecting section (222) is mated with the column connecting part (33). A connection hole for connection is preset on the second node connecting section (222).

9. The ultra-high performance concrete steel connection node frame structure according to claim 2, characterized in that, It also includes a combined diagonal brace (4), the end of which is connected to the connecting node (3). The combined diagonal brace (4) includes a diagonal brace body (41), which is made of ultra-high performance concrete.

10. The ultra-high performance concrete steel connection node frame structure according to claim 9, characterized in that, The connecting node (3) further includes a diagonal brace connecting part (34), at least one of the diagonal brace connecting parts (34) being connected to the side of the node body (31); The combined diagonal brace (4) also includes a diagonal brace connector (42). Each end of the diagonal brace body (41) is connected to a diagonal brace connector (42). The diagonal brace connector (42) is made of steel. Any end of the diagonal brace body (41) can be connected to the corresponding diagonal brace connection part (34) on the connection node (3) through the corresponding diagonal brace connector (42).

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