An assembled reinforcing joint of a large-span structure H-shaped section member and a construction method thereof

Abstract

This invention relates to the field of building construction technology, and in particular to a prefabricated reinforcement node and construction method for a large-span H-shaped cross-section member. The prefabricated reinforcement node for the large-span H-shaped cross-section member includes a lower member, diagonal web members, end diagonal cables, intermediate diagonal cables, and struts. The prefabricated reinforcement node is installed on the diagonal web members. The lower end of the prefabricated reinforcement node is connected to one end of the strut or the end diagonal cable. The other end of the end diagonal cable is connected to the lower end of the strut. Both ends of the intermediate diagonal cable are connected to the ends of two adjacent struts. A U-shaped connector is provided at the upper end of the prefabricated reinforcement node. The two extended ends of the U-shaped connector are connected to the diagonal web members. Through the prefabricated reinforcement node and the U-shaped connector, rapid assembly of components such as the lower member, diagonal web members, end diagonal cables, intermediate diagonal cables, and struts is achieved, significantly improving construction efficiency and reducing construction difficulty and cost.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a prefabricated reinforcement node and construction method for a large-span H-shaped cross-section member. Background Technology

[0002] The H-section structural member system for large-span structures has been widely used in the field of large-span spatial structures due to its significant advantages, including high component cross-sectional load-bearing capacity, excellent seismic performance, and high degree of prefabrication. It occupies an important position in large-span spatial structures and is widely used in large public buildings such as stadiums, convention centers, and airport terminals. Its unique structural form allows for more flexible spatial layout, meeting the needs of different building functions. Simultaneously, the high load-bearing capacity of the H-section structural members effectively resists various loads; its excellent seismic performance ensures the safety of the building under natural disasters such as earthquakes; and its high degree of prefabrication improves construction efficiency, shortens the construction period, and reduces construction costs.

[0003] Despite the numerous advantages of large-span H-section structural member systems, the load-bearing capacity and stability of the superstructure gradually decline over long-term use due to factors such as environmental erosion, load variations, and material aging. On the one hand, changes in building function, such as the addition of equipment or altered population density, significantly alter the loads borne by the structure, rendering the original structure unable to meet new load requirements. On the other hand, materials experience fatigue and corrosion over long-term use, leading to a reduction in the mechanical properties of the components and impacting the overall stability of the structure. These problems expose large-span H-section structural member systems to significant safety hazards; the consequences of an accident could be disastrous. Over time, many completed large-span H-section structural member systems have exhibited significant changes in load-bearing capacity and stability, with loads and functional requirements differing considerably from the initial design. This has resulted in a series of serious safety accidents, such as the roof collapse of the Jiamusi Huanan Stadium, the collapse of the Qiqihar No. 34 Middle School gymnasium, and the collapse of the Baicheng Ice Rink. These accidents have caused enormous losses to people's lives and property, highlighting the urgency and importance of reinforcing the existing large-span pipe superstructure. Summary of the Invention

[0004] The purpose of this invention is to provide a prefabricated reinforcement node and construction method for H-shaped cross-section members of large-span structures, so as to solve at least one technical problem existing in the prior art.

[0005] To address the aforementioned technical problems, this invention provides a prefabricated reinforcement node for a large-span H-shaped cross-section member, comprising a lower member, diagonal web members, end diagonal cables, intermediate diagonal cables, and struts; the prefabricated reinforcement node is provided on the diagonal web members; the lower end of the prefabricated reinforcement node is connected to one end of the strut or the end diagonal cable; the other end of the end diagonal cable is connected to the lower end of the strut; both ends of the intermediate diagonal cable are respectively connected to the ends of two adjacent struts; a U-shaped connector is provided at the upper end of the prefabricated reinforcement node; the two extended ends of the U-shaped connector are connected to the diagonal web members.

[0006] Furthermore, the prefabricated reinforcement node includes a first plate and a second plate arranged symmetrically; the first plate and the second plate clamp the lower rod from the front and rear directions; the first plate, the second plate and the lower rod are provided with through holes opposite to each other, and the first plate, the second plate and the lower rod are fixedly connected by fasteners passing through the through holes.

[0007] Furthermore, the first plate and the second plate together form a column including a receiving groove, the shape and size of which match the lower rod.

[0008] Furthermore, the lower rod is an I-beam, and the groove is I-shaped; the first plate and the second plate have an "arch" structure; the middle position of the first plate and the second plate corresponds to the web of the lower rod; the upper and lower protrusions of the first plate and the second plate correspond to the upper and lower flanges of the lower rod.

[0009] Furthermore, a stiffening rib is provided between the upper protrusion and the lower protrusion to enhance the rigidity of the first plate and the second plate.

[0010] Furthermore, an upper connecting plate is provided at the top of the first plate and the second plate; the upper connecting plate is fastened to the U-shaped connector.

[0011] Furthermore, the U-shaped connector includes a lower base plate and two upper connecting parts; the lower base plate is used to connect with the upper connecting plate; the two upper connecting parts are integrally and symmetrically arranged with the lower base plate; the two upper connecting parts are respectively connected to two diagonal web members.

[0012] Furthermore, the lower base plate is an isosceles right triangle structure; the hypotenuse of the triangle is inserted into the gap between the first plate and the second plate and abuts against the upper end of the lower rod; an upper connecting part is fixedly provided on the two right-angled sides of the triangle.

[0013] Furthermore, both the first plate and the second plate are fixedly provided with a lower connecting plate at their bottom; a support rod connecting plate is provided at the upper end of the support rod; a cable connecting plate is provided at the end of the end cable that connects to the prefabricated reinforcement node; the support rod connecting plate or the cable connecting plate is inserted between the two lower connecting plates and is fastened together by fasteners.

[0014] Furthermore, the strut connecting plate and the lower connecting plate connected to the strut connecting plate are rectangular; the inclined cable connecting plate and the lower connecting plate connected to the inclined cable connecting plate are semi-dovetail shaped, with the direction of the semi-dovetail shaped bias being the extension direction of the end inclined cable. The semi-dovetail shaped inclined cable connecting plate and the lower connecting plate are provided with a main connecting hole and two secondary connecting holes arranged in an equilateral triangle, with the extension direction of the main connecting hole as the vertex being the same as the extension direction of the end inclined cable.

[0015] Furthermore, the length of the inclined side of the lower seat plate is equal to the length of the upper end of the first plate and the second plate; the inclined lower connecting part abuts against the lower rod; the top of the upper connecting plate is provided with an inclined abutting structure that matches the inclined surface of the upper connecting part, for abutting against the upper connecting part.

[0016] Furthermore, it also includes a sliding tube; the upper connecting part and the inclined web rod are sleeved in the sliding tube, and the upper connecting part and the inclined web rod are connected by fasteners passing through the upper connecting part, the inclined web rod and the sliding tube. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an assembled reinforcement node for a large-span H-shaped cross-section member disclosed in this application;

[0019] Figure 2 A three-dimensional structural diagram of the prefabricated reinforcement nodes and U-shaped connectors;

[0020] Figure 3 A three-dimensional structural diagram of the prefabricated reinforcement node;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the first plate.

[0022] Figure 5 A three-dimensional structural diagram of the U-shaped connector;

[0023] Figure 6 A three-dimensional structural diagram of the prefabricated reinforcement nodes and strut connections;

[0024] Figure 7 A three-dimensional structural diagram of a prefabricated reinforcement node and a type of inclined cable connection plate;

[0025] Figure 8 A three-dimensional structural diagram of a prefabricated reinforcement node and another type of inclined cable connection plate;

[0026] Figure 9 A three-dimensional structural diagram of the semi-dovetail-shaped lower connecting plate;

[0027] Figure 10 This is a schematic diagram of the three-dimensional structure of the sliding tube;

[0028] Figure 11 This is a schematic diagram of the planar structure of the hole assembly;

[0029] Figure 12 This is a planar sectional view of the first type of eccentric ring pad after assembly in Example 3;

[0030] Figure 13 This is a planar sectional view of the second type of eccentric ring pad assembled in Example 3;

[0031] Figure 14 This is a planar sectional view of the third type of eccentric ring pad assembled in Example 3;

[0032] Figure 15 This is a planar sectional view of the fourth type of eccentric ring pad assembled in Example 3;

[0033] Figure 16 This is a top view of the eccentric annular gasket.

[0034] Figure 17 This is a top view of the eccentric annular gasket.

[0035] Figure 18 A top view of the eccentric annular bushing into which the wedge block is inserted;

[0036] Figure 19 A schematic diagram of the eccentric annular bushing for wedging into the wedge block;

[0037] Figure 20 A schematic diagram of an eccentric circular ring gasket with locking teeth;

[0038] Figure 21 A schematic diagram of the structure when the eccentric ring gasket with locking teeth is engaged with the wedge block;

[0039] Figure 22 This is a schematic diagram of the structure when the wedge is clamped by fasteners.

[0040] Figure 23 This is a three-dimensional structural diagram of the first structure in Example 5;

[0041] Figure 24 This is a three-dimensional structural diagram of the second structure in Example 5;

[0042] Figure 25 This is a three-dimensional structural diagram of the first structure in Example 6;

[0043] Figure 26 This is a three-dimensional structural diagram of the second structure in Example 6;

[0044] Figure 27 A three-dimensional structural diagram of the first connecting part and the second connecting part;

[0045] Figure 28 for Figure 27 A magnified view of a portion of the image;

[0046] Figure 29 This is a structural schematic diagram of the universal joint head and the universal joint slot shell;

[0047] Figure 30 This is a schematic diagram of the planar structure of the connector with a double hemisphere structure.

[0048] Figure 31 This is a schematic diagram of the planar structure when the two hemispheres are far apart.

[0049] Figure 32 for Figure 31 Cross-sectional view of section AA;

[0050] Figure 33 A schematic diagram of the planar structure after the addition of a fixed shell to the double-hemispherical structure, resulting in elongation and rotation.

[0051] Figure 34 This is a schematic diagram of the planar structure of the double-ellipsoidal implementation in its initial state.

[0052] Figure 35 for Figure 34 Cross-sectional view of section BB in the middle;

[0053] Figure 36 This is a schematic diagram of the planar structure of the double-ellipsoidal implementation within the range of relative free rotation.

[0054] Figure 37 This is a schematic diagram of the planar structure of the double ellipsoidal implementation when the maximum rotation range is reached.

[0055] Figure label:

[0056] 1-Lower member; 2-Diagonal web member; 3-End diagonal cable; 4-Intermediate diagonal cable; 5-Strut; 6-Assembled reinforcement node; 7-U-shaped connector; 8-First plate; 9-Second plate; 10-Through hole; 11-Groove; 12-Web plate; 13-Upper flange; 14-Lower flange; 15-Stiffening rib; 16-Upper connecting plate; 17-Lower seat plate; 18-Upper connecting part; 19-Lower connecting plate; 20-Strut connecting plate; 21-Sliding tube; 22-Rectangular part; 23-Semi-circular hinge part; 24-Sliding tube; 25-I-beam groove; 26-Limiting block; 27-External connection structure; 28-Internal connection structure; 29-Outer hole; 30-Inner hole; 31-Hole group; 32-Eccentric ring pad; 33-Upper flange; 34-Eccentric ring bushing; 35-Outer ring; 36-Inner ring; 37-Elastic element; 38-Wedge block; 39-Clamping tooth; 40-Clamping pattern; 41-Fastener; 42-Angled cable connecting plate; 43-Main connecting hole; 44-Secondary connecting hole; 45-Upper chord; 46-First inclined cable; 47-Second inclined cable; 48-Pin shaft; 49-Angled cable body; 50-Cable tension adjuster; 51-First connecting part; 52-Second connecting part; 53-Universal hinge; 54-Universal hinge groove shell; 55-First hemisphere; 56-Second hemisphere; 57-Connecting pin; 58-Spring; 59-Pin groove; 60-Fixed shell; 61-Elastic layer; 62-First ellipsoidal hemisphere; 63-Second ellipsoidal hemisphere. Detailed Implementation

[0057] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] It should also be noted that the specific embodiments or implementation methods described below are a series of optimized settings listed by the present invention to further explain the specific content of the invention, and these settings can be combined or used in conjunction with each other.

[0061] The present invention will be further explained below with reference to specific embodiments.

[0062] Example 1

[0063] like Figure 1-2 As shown in the figure, this embodiment provides a prefabricated reinforcement node for a large-span H-shaped cross-section member, including a lower member 1, a diagonal web member 2, an end diagonal cable 3, an intermediate diagonal cable 4, and a strut 5; a prefabricated reinforcement node 6 is provided on the diagonal web member 2; the lower end of the prefabricated reinforcement node 6 is connected to one end of the strut 5 or the end diagonal cable 3; the other end of the end diagonal cable 3 is connected to the lower end of the strut 5; both ends of the intermediate diagonal cable 4 are respectively connected to the ends of two adjacent struts 5; a U-shaped connector 7 is provided on the upper end of the prefabricated reinforcement node 6; the two outward ends of the U-shaped connector 7 are connected to the diagonal web member 2.

[0064] The prefabricated reinforcement node 6 and the U-shaped connector 7 described in this application combine and assemble the upper diagonal brace 2, the middle lower member 1, and the lower end diagonal cable 3 and support rod 5, etc.

[0065] like Figure 3-4 As shown, as a further embodiment of this example, the prefabricated reinforcement node 6 includes a first plate 8 and a second plate 9 symmetrically arranged; the first plate 8 and the second plate 9 clamp the lower rod 1 from the front and rear directions; the first plate 8, the second plate 9 and the lower rod 1 are provided with through holes 10 opposite to each other, and the first plate 8, the second plate 9 and the lower rod 1 are fixedly connected by fasteners 41 passing through the through holes 10.

[0066] As a further embodiment of this example, the first plate 8 and the second plate 9 together form a column including a receiving groove 11, the shape and size of which match the lower rod 1.

[0067] As a further embodiment of this example, the lower rod 1 is an I-beam, and the receiving groove 11 is I-shaped; the first plate 8 and the second plate 9 have an "arch" structure; the middle position of the first plate 8 and the second plate 9 corresponds to the web 12 of the lower rod 1; the upper and lower protrusions of the first plate 8 and the second plate 9 correspond to the upper flange 13 and the lower flange 14 of the lower rod 1.

[0068] In this application, the lower rod 1 is connected by clamping the first plate 8 and the second plate 9 of the "bow" structure from both front and rear directions. The two mirrored "bow" structures form an "I"-shaped through groove in the middle. The shape of the through groove is the same as the cross-sectional shape of the lower rod 1, so that the lower rod 1 is clamped between the first plate 8 and the second plate 9.

[0069] like Figure 6 As shown, as a further embodiment of this invention, a stiffening rib 15 is also provided between the upper protrusion and the lower protrusion to enhance the rigidity of the first plate 8 and the second plate 9.

[0070] like Figure 4-6 As shown, as a further embodiment of this example, an upper connecting plate 16 is also provided at the top of the first plate 8 and the second plate 9; the upper connecting plate 16 is fastened to the U-shaped connector 7.

[0071] like Figure 5 As shown, as a further embodiment of this example, the U-shaped connector 7 includes a lower base plate 17 and two upper connecting parts 18; the lower base plate 17 is used to connect with the upper connecting plate 16; the two upper connecting parts 18 are integrally and symmetrically arranged with the lower base plate 17; the two upper connecting parts 18 are respectively connected to two diagonal web members 2.

[0072] As a further embodiment of this embodiment, the lower base plate 17 is an isosceles right triangle structure; the hypotenuse of the triangle is inserted into the gap between the first plate 8 and the second plate 9 and abuts against the upper end of the lower rod 1; an upper connecting part 18 is fixedly provided on the two right-angled sides of the triangle.

[0073] like Figure 6-8 As shown, in a further embodiment of this invention, both the first plate 8 and the second plate 9 are fixedly provided with a lower connecting plate 19 at their bottoms; the upper end of the support rod 5 is provided with a support rod connecting plate 20; the end of the end cable 3 connected to the prefabricated reinforcement node 6 is provided with a cable connecting plate 42; the support rod connecting plate 20 or the cable connecting plate 42 is inserted between the two lower connecting plates 19 and is fastened by fasteners 41.

[0074] As a further embodiment of this example, the strut connecting plate 20 and the lower connecting plate 19 connected to the strut connecting plate 20 are rectangular; the inclined cable connecting plate 42 and the lower connecting plate 19 connected to the inclined cable connecting plate 42 are semi-dovetail shaped, with the direction of the semi-dovetail shaped bias being the extension direction of the end inclined cable 3. The semi-dovetail shaped inclined cable connecting plate 42 and the lower connecting plate 19 are provided with a main connecting hole 43 and two secondary connecting holes 44 arranged in an equilateral triangle, with the extension direction of the main connecting hole 43 as the vertex being the same as the extension direction of the end inclined cable 3.

[0075] In this embodiment, the lower connecting plate 19 has two forms: one is rectangular for connecting with the strut connecting plate 20, and the other is semi-dovetail-shaped for connecting with the inclined cable connecting plate 42. During actual construction and installation, the corresponding lower connecting plate 19 is selected according to the location of the prefabricated reinforcement node 6.

[0076] As a further embodiment of this example, the length of the inclined side of the lower seat plate 17 is equal to the length of the upper end of the first plate 8 and the second plate 9; the inclined upper connecting part 18 abuts against the lower rod 1 at a lower angle; the top of the upper connecting plate 16 is provided with an inclined abutting structure that matches the inclined surface of the upper connecting part 18, for abutting against the upper connecting part 18.

[0077] This embodiment discloses a prefabricated reinforcement node for a large-span H-shaped cross-section member. The prefabricated reinforcement node 6 and U-shaped connector 7 connect the lower member 1, diagonal web member 2, end diagonal cable 3, intermediate diagonal cable 4, and strut 5. Some prefabricated reinforcement nodes 6 are located in the middle of the H-shaped cross-section member unit, while others are located at the ends. The lower end of the prefabricated reinforcement node 6 located in the middle of the H-shaped cross-section member unit is connected to the strut 5, while the prefabricated reinforcement nodes 6 located at the ends of the H-shaped cross-section member unit are connected to the end diagonal cable 3.

[0078] As a further embodiment of this example, the lower connecting plate 19 connected to the inclined cable connecting plate 42 is rectangular; the inclined cable connecting plate 42 includes an upper rectangular portion and a lower semi-circular hinge portion; the rectangular portion has the same shape as the lower connecting plate 19 and is fastened by fasteners 41; the semi-circular hinge portion is used to hinge with the inclined cable.

[0079] As a further embodiment of this embodiment, both the end inclined cable 3 and the middle inclined cable 4 include an inclined cable body 49 and a cable tension adjuster 50;

[0080] The cable tension adjuster 50 is used to adjust the stress of the cable body 49.

[0081] By adopting the above technical solution, the present invention has the following beneficial effects:

[0082] (1) By using prefabricated reinforcement nodes 6 and U-shaped connectors 7, the rapid assembly of components such as lower rod 1, diagonal web 2, end diagonal cable 3, middle diagonal cable 4 and strut 5 was realized, which significantly improved construction efficiency and reduced construction difficulty and cost.

[0083] (2) The prefabricated reinforcement node 6 uses a symmetrically arranged first plate 8 and second plate 9 to clamp the lower member 1 and fix it with fasteners 41 to ensure the stability of the connection. At the same time, the tight connection between the U-shaped connector 7 and the upper connecting plate 16, and the connection between the lower connecting plate 19 and the strut connecting plate 20 or the inclined cable connecting plate 42, further enhance the overall stability of the structure.

[0084] (3) The design of the prefabricated reinforcement node 6 and the U-shaped connector 7 takes into account the connection requirements of different components, so that the device can adapt to various structural forms and construction conditions. In particular, the different shapes of the lower connecting plate 19 can select the corresponding connection method according to the location of the prefabricated reinforcement node 6, which improves the flexibility and applicability of the device.

[0085] (4) By setting stiffening ribs 15 between the first plate 8 and the second plate 9, the rigidity of the node is enhanced and the load-bearing capacity of the device is improved. At the same time, the abutment structure design of the U-shaped connector 7 and the lower rod 1 further enhances the overall strength of the structure.

[0086] (5) Both the end cable 3 and the middle cable 4 are equipped with cable tension adjusters 50, which can adjust the stress of the cable body 49 according to actual needs, so as to ensure the stability and safety of the device during the stress process.

[0087] Example 2

[0088] like Figure 2 , 10 As shown, this embodiment discloses a connection method between the upper connecting part 18 and the inclined web member 2, specifically as follows:

[0089] It also includes a sliding tube 24; the upper connecting part 18 and the inclined web rod 2 are sleeved in the sliding tube 24, and the upper connecting part 18 and the inclined web rod 2 are connected by a fastener 41 passing through the upper connecting part 18, the inclined web rod 2 and the sliding tube 24.

[0090] In this embodiment, both the upper connecting part 18 and the inclined web rod 2 are I-beams, and the sliding tube 24 has an I-beam groove 25 inside.

[0091] Through holes 10 are provided at the positions corresponding to the upper connecting part 18 and the sliding tube 24, as well as at the positions corresponding to the inclined web rod 2 and the sliding tube 24, for the fastener 41 to pass through and be fastened.

[0092] Limiting blocks 26 are fixedly provided on both the upper connecting part 18 and the inclined web member 2;

[0093] When the upper connecting part 18 and the inclined web rod 2 are inserted into the sliding tube 24 and the limiting block 26 abuts against the sliding tube 24, the through holes 10 provided on the upper connecting part 18 and the sliding tube 24, as well as the through holes 10 provided on the inclined web rod 2 and the sliding tube 24, are aligned, which facilitates on-site installation.

[0094] By adopting the above technical solution, the present invention has the following beneficial effects:

[0095] (1) Through the design of the sliding tube 24, the upper connecting part 18 and the inclined web rod 2 can be easily fitted into it and quickly connected by the fastener 41, which significantly simplifies the on-site installation process and improves the construction efficiency.

[0096] (2) The I-shaped groove 25 opened in the sliding tube 24 matches the I-shaped part of the upper connecting part 18 and the inclined web rod 2, ensuring the accuracy of the connection. At the same time, the setting of the limiting block 26 enables the through hole 10 to be automatically aligned when the sliding tube 24 is inserted, further improving the accuracy and convenience of installation.

[0097] (3) Fastener 41 passes through the upper connecting part 18, the inclined web rod 2 and the sliding tube 24, forming a stable connection structure, which effectively improves the overall stability and load-bearing capacity of the device.

[0098] Example 3

[0099] like Figure 11-15As shown, this embodiment is a further improvement of embodiments 1 and 2. When splicing using the prefabricated reinforcement nodes of the large-span H-shaped cross-section members in embodiments 1 and 2, the positions of the through holes 10 through which the fasteners 41 pass may shift axially due to factors such as construction accuracy or material properties like thermal expansion and contraction. Specifically, the upper connecting plate 16 and the U-shaped connector 7, the strut connecting plate 20 and the lower connecting plate 19, the inclined cable connecting plate 42 and the lower connecting plate 19, the upper connecting part 18 and the sliding tube 24, and the inclined web member 2 and the sliding tube 24; all of the above components are provided with through holes 10 and are fastened together by fasteners 41 passing through the through holes 10. During connection, the upper connecting plate 16, the lower connecting plate 19, and the sliding tube 24 are located on the outside, and are therefore collectively referred to as the external connecting structure 27; while the U-shaped connector 7, the strut connecting plate 20, the inclined cable connecting plate 42, the upper connecting part 18, and the inclined web member 2 are structures inserted into the middle of the external connecting structure 27, and are therefore collectively referred to as the internal connecting structure 28. The through hole 10 provided on the external connecting structure 27 is called the outer hole 29, and the through hole 10 provided on the internal connecting structure 28 is called the inner hole 30. However, due to factors such as construction precision or material properties like thermal expansion and contraction, the positions of the outer hole 29 and the inner hole 30 may shift axially. That is, when a fastener 41 passes through a hole group 31 consisting of a corresponding outer hole 29 and inner hole 30, the outer holes 29 and inner holes 30 in other hole groups 31 may deviate, preventing the fastener 41 from passing through and being installed. This embodiment solves this problem through the following structure.

[0100] The outer hole 29 has a larger diameter than the inner hole 30; an eccentric ring pad 32 is placed inside the outer hole 29; the outer ring of the eccentric ring pad 32 fits into the hole wall of the outer hole 29; the inner ring of the eccentric ring pad 32 coincides with the inner hole 30.

[0101] As a further embodiment of this example, the diameter of the outer hole 29 is the same at different heights of the hole wall.

[0102] The outer ring of the eccentric annular pad 32 that fits with the outer hole 29 is also cylindrical. This structure is suitable for the working condition where the I-beam sliding tube 24 only bears axial force.

[0103] As a further embodiment of this invention, the cross-section of the outer hole 29 is conical, and the outer ring of the eccentric annular pad 32 is also conical. In this structure, the fastener 41 can not only transmit shear force through the eccentric annular pad 32, but the presence of the conical surface can also limit the deformation of the I-beam sliding tube 24 and the eccentric annular pad 32 along the axial direction of the fastener 41. This is suitable for splicing nodes that need to withstand shear force and bending moment in addition to axial force.

[0104] As a further embodiment of this invention, the outer hole 29 has a countersunk hole structure, and the shape of the eccentric annular pad corresponds to the countersunk hole. In this structure, the fastener 41 can only transmit shear force through the eccentric annular pad, and the presence of the upper flange 33 surface can also limit the deformation of the I-shaped sliding tube 24 and the eccentric annular pad 32 along the axial force direction of the fastener 41, which is suitable for working conditions where the hole wall of the fastener 41 is relatively deep.

[0105] As a further embodiment of this example, the eccentric annular pad 32 also includes an upper flange 33; the vertical position of the upper flange 33 is higher than the outer surface of the I-shaped sliding tube 24; the diameter of the upper flange 33 is greater than the outermost diameter of the outer hole 29.

[0106] In this structure, the fastener 41 can not only transmit shear force through the eccentric ring pad 32, but the presence of the upper flange 33 surface can also limit the deformation of the I-shaped sliding tube 24 and the eccentric ring pad 32 along the axial force direction of the fastener 41. Unlike the above-mentioned modification of the hole wall shape, this embodiment is suitable for cases where the bolt hole wall is modified less, and it is also possible to combine it with the embodiment for modifying the hole wall shape.

[0107] By adopting the above technical solution, the present invention has the following beneficial effects:

[0108] (1) By setting the outer hole 29 to be larger than the inner hole 30, and using the eccentric ring pad 32, the problem of axial offset between the outer hole 29 and the inner hole 30 caused by construction accuracy or thermal expansion and contraction of materials is effectively solved, so that the fastener 41 can pass through and be installed smoothly, improving the adaptability and flexibility of installation.

[0109] (2) The design of the eccentric ring pad 32 not only ensures the smooth installation of the fastener 41, but also transmits shear force to a certain extent, enhancing the overall stability of the connection structure. Especially under the conditions of shear force and bending moment, the combined use of the tapered outer hole 29 and the tapered eccentric ring pad 32 further restricts the axial deformation of the structure and improves the load-bearing capacity of the structure.

[0110] (3) The technical solution provides a variety of matching methods between the eccentric ring pad 32 and the outer hole 29, such as the cylindrical outer hole 29 and the cylindrical eccentric ring pad 32, the conical outer hole 29 and the conical eccentric ring pad 32, and the outer hole 29 with the countersunk hole structure and the corresponding eccentric ring pad 32, etc. These different matching methods can adapt to different working conditions and improve the versatility and practicality of the device.

[0111] (4) The upper flange 33 on the eccentric ring pad 32 can limit the deformation of the I-beam sliding tube 24 and the eccentric ring pad 32 along the axial force direction of the fastener 41, further enhancing the stability of the structure. This design is particularly suitable for working conditions where the bolt hole wall is not significantly modified or the fastener 41 hole wall is deep, providing more options and convenience for actual construction.

[0112] Example 4

[0113] like Figure 16-21 As shown, this embodiment discloses an eccentric annular gasket 34 to solve the technical problem proposed in embodiment 3. Unlike embodiment 3, the eccentric annular gasket 34 in this embodiment is an adjustable structure.

[0114] The eccentric annular gasket 34 includes an outer ring 35 and an inner ring 36 fitted inside the outer ring 35; the outer ring 35 and the inner ring 36 are connected by an elastic element 37; the outer wall diameter of the outer ring 35 is less than or equal to the diameter of the outer hole 29; the height of the outer ring 35 is the same as the height of the outer hole 29; the outer wall diameter of the inner ring 36 is less than or equal to the diameter of the inner hole 30.

[0115] During installation, place the eccentric ring gasket 34 inside the outer hole 29, insert the fastener 41 into the inner ring 36 and move the fastener 41 so that the fastener 41 is further inserted into the inner hole 30.

[0116] As a further embodiment of this example, the lower part of the inner ring 36 extends beyond the lower surface of the outer ring 35, and is used to extend into the inner hole 30 for limiting.

[0117] As a further embodiment of this invention, a wedge block 38 is also provided between the outer ring 35 and the inner ring 36; the wedge block 38 is driven into the space between the outer ring 35 and the inner ring 36 by striking, thereby providing a further limiting function.

[0118] As a further embodiment of this example, the inner wall of the outer ring 35 is inclined relative to the wedge block 38, tending to fit against the side of the wedge block 38.

[0119] As shown in the figure, as a further embodiment of this invention, a locking tooth 39 is provided on the inner wall of the outer ring 35 at a position opposite to the wedge block 38; a locking groove 40 is provided on the wedge block 38; after the wedge block 38 enters between the outer ring 35 and the inner ring 36, the locking tooth 39 engages with the locking groove 40 to prevent relative movement between the wedge block 38 and the inner wall of the outer ring 35.

[0120] As a further embodiment of this example, the outer wall of the inner ring 36 is inclined relative to the wedge block 38, tending to fit against the side of the wedge block 38.

[0121] As a further embodiment of this invention, a locking tooth 39 is provided on the outer wall of the inner ring 36 at a position opposite to the wedge block 38; a locking pattern 40 is provided on the wedge block 38; after the wedge block 38 enters between the outer ring 35 and the inner ring 36, the locking tooth 39 engages with the locking pattern 40 to prevent relative movement between the wedge block 38 and the outer wall of the inner ring 36.

[0122] As a further embodiment of this example, the locking tooth 39 has a ratchet structure with the tips of the ratchet teeth facing downwards, so that the wedge block 38 encounters less resistance when entering between the outer ring 35 and the inner ring 36, and encounters greater resistance when leaving between the outer ring 35 and the inner ring 36.

[0123] like Figure 22 As shown, in a further embodiment of this example, the end of the fastener 41 abuts against the wedge block 38. During the operation of the reinforced node, the fastener 41 presses against the wedge block 38, preventing the wedge block 38 from sliding out between the inner ring 36 and the outer ring 35.

[0124] The wedge 31 can have different sizes (e.g. Figure 22 As shown), it can also have wedges 31 with varying depths but the same size.

[0125] In this embodiment, the locking teeth 39 on the outer ring 35 and the inner ring 36 have different functions, and their functions occur at different stages. When the wedge 38 is wedged between the inner ring 36 and the outer ring 35, the inner ring 36 exerts no significant additional force on the wedge 38. At this time, the locking teeth 39 on the outer ring 35 and the locking grooves 40 on the wedge 38 provide locking and limiting. After the wedge 38 is fully inserted, the fastener 41 is installed. The nut at the end of the fastener 41 presses the inner ring 36 downward, causing the outer wall of the inner ring 36 to further adhere to the wedge 38. At this time, the locking grooves 40 on the wedge 38 are locked by the locking teeth 39 on the inner ring 36, preventing the wedge 38 from loosening. In addition, the ratchet structure can effectively reduce the resistance during the wedging process of the wedge 38 and prevent the possibility of the wedge 38 loosening.

[0126] In practical engineering, most errors can be compensated for by the device in Embodiment 3. However, for some special error situations, such as a misalignment at a certain fastener 41 connection point due to a production error, it would be relatively inconvenient to remeasure the eccentricity at each individual point and select the corresponding eccentric ring pad 32. In this case, the deviation can be corrected by the method of this embodiment. In addition, for some deviations between eccentric ring pads 32 of different specifications, the eccentric ring sleeve 34 disclosed in this embodiment can also be used to correct the deviation.

[0127] By adopting the above technical solution, the present invention has the following beneficial effects:

[0128] (1) The adjustable eccentric ring pad 34 design can flexibly cope with different offset errors. In particular, for the special offset of individual fasteners 41, there is no need to remeasure the eccentricity and select the corresponding pad, which greatly improves the construction efficiency and convenience.

[0129] (2) The lower part of the inner ring 36 extends beyond the lower surface of the outer ring 35 and is inserted into the inner hole 30 for limiting. At the same time, the wedge block 38 is used to further wedge between the outer ring 35 and the inner ring 36, which enhances the stability of the connection and effectively prevents the fastener 41 from loosening or displacing during the force process.

[0130] (3) The inner walls of the outer ring 35 and the inner ring 36 are respectively provided with locking teeth 39 at positions opposite to the wedge block 38, which cooperate with the locking texture 40 on the wedge block 38 to form a reliable locking structure. In particular, the ratchet structure makes the resistance of the wedge block 38 smaller during the wedging process, and effectively prevents loosening after wedging is completed, further improving the reliability of the connection.

[0131] (4) This technical solution can effectively deal with some deviations between eccentric ring pads 32 of different specifications, as well as special offsets caused by production errors, demonstrating its wide applicability and strong correction capability.

[0132] (5) By using an adjustable eccentric ring pad 34, the workload of re-measuring and replacing pads due to errors is reduced, thereby improving construction efficiency and reducing construction costs.

[0133] Example 5

[0134] like Figure 23-24 As shown, this embodiment provides various prefabricated reinforcement nodes for large-span H-shaped cross-section members to adapt to different construction needs.

[0135] like Figure 23 As shown, the force transmission device includes an upper chord 45, a lower chord 1, and a diagonal brace 2; the diagonal brace 2 and the lower chord 1 are connected by a U-shaped connector 7; the upper connection part 18 of the U-shaped connector 7 provided on the upper chord 45 and the diagonal brace 2 are an integrated structure.

[0136] This system requires no additional reinforcement and can be applied to locations with simple and low stress conditions, saving space and being easy to install.

[0137] like Figure 24 As shown, this force transmission device adds a double-rod structure to the previous device, that is, two support rods 5 are set at the bottom of each unit, which is suitable for H-shaped cross-section structural members with smaller spans.

[0138] like Figure 1As shown, this force transmission device is modified from the previous device into a three-bar structure, which is suitable for structures with larger spans.

[0139] By adopting the above technical solution, the present invention has the following beneficial effects:

[0140] (1) Provides a variety of prefabricated reinforcement nodes for large-span H-shaped cross-section components, which can be flexibly adapted to different construction scenarios and needs, enhancing the versatility and practicality of the device.

[0141] (2) When applied in locations with simple and small stress, no additional reinforcement is required, which saves space, simplifies the installation process, and improves construction efficiency.

[0142] (3) By adjusting the number of members (such as double-bar and triple-bar structures), it can adapt to H-shaped cross-section member structures with smaller spans and larger spans respectively, demonstrating good span adaptability.

[0143] Example 6

[0144] like Figure 25-26 As shown, this embodiment provides two connection methods for the strut 5 and the first and second inclined cables (the first and second inclined cables are end inclined cables 3 or middle inclined cables 4).

[0145] The first connection method is a double pin shaft 48 structure, in which the first inclined cable and the second inclined cable are respectively pinned to the bottom end of the support rod 5 via pin shaft 48.

[0146] The second connection method is a single pin shaft 48 structure, in which a pin shaft 48 is provided at the bottom end of the support rod 5, and the first inclined cable and the second inclined cable are pinned together on the same pin shaft 48.

[0147] By adopting the above technical solution, the present invention has the following beneficial effects:

[0148] (1) Two connection methods, double pin 48 and single pin 48, are provided, which can be flexibly selected according to actual engineering needs and conditions, enhancing the flexibility and adaptability of the connection between the strut 5 and the cable.

[0149] Example 7

[0150] This embodiment discloses a construction method for a prefabricated reinforcement node of a large-span H-shaped cross-section member, including the following steps: S1: hoisting the prefabricated reinforcement node to the lower member; S2: positioning and drilling high-strength bolt holes for the outer arch plate and trapezoidal plate using a magnetic drill; S3: initially tightening the high-strength bolts for the outer arch plate and trapezoidal plate; S4: hoisting the strut and tightening the high-strength bolts for the rectangular plate; S5: hoisting the inclined cable and inserting the inclined cable pin; S6: hoisting the horizontal cable and installing the horizontal cable pin; S7: adjusting the horizontal cable tension adjuster to make the cable tension reach the design value, thus completing the reinforcement.

[0151] Example 8

[0152] like Figure 27-28 As shown, this embodiment discloses another specific structure at the connection between the lower connecting plate 19 and the inclined cable connecting plate 42 in another embodiment 1, including a first connecting part 51 (replacing the inclined cable connecting plate 42), a second connecting part 52 (replacing the lower connecting plate 19), and a universal hinge structure;

[0153] The universal hinge structure includes a universal hinge head 53 fixedly disposed on the first connecting part 51 and a universal hinge groove shell 54 fixedly disposed on the second connecting part 52; the universal hinge groove shell 54 is provided with an opening on one side of the universal hinge head 53, the universal hinge head 53 is rotatably fitted into the universal hinge groove shell 54, and the universal hinge head 53 extends out of the opening through a (columnar) intermediate connecting part and is connected to the first connecting part 51.

[0154] The universal joint groove shell 54 partially wraps around the universal joint head 53. When the positions of the first connecting part 51 and the second connecting part 52 move relative to each other, the universal joint head 53 and the universal joint groove shell 54 rotate relative to each other to form an adaptive adjustment.

[0155] The connector disclosed in this embodiment, through the hinge of the universal joint 53 and the universal joint slot shell 54, can cope with the connection of two structures when the axial direction of the two structures changes in any direction.

[0156] like Figures 30-33 As shown in the figure, as a further embodiment of this invention, the universal joint 53 includes a first hemisphere 55, a second hemisphere 56, a connecting pin 57, and a spring 58. The two ends of the connecting pin 57 are slidably inserted into guide holes on the first hemisphere 55 and the second hemisphere 56, respectively, to limit and guide the relative approach and distance between the first hemisphere 55 and the second hemisphere 56. The two ends of the spring 58 abut against the first hemisphere 55 and the second hemisphere 56, tending to force them to move away from each other. The outer side of the first hemisphere 55 extends out of the opening through a middle connecting portion and connects to the first connecting portion 51.

[0157] The first hemisphere 55 and the second hemisphere 56 are provided with pin grooves 59 opposite to each other; the pin grooves 59 include guide holes for accommodating the connecting pin 57 and recesses for accommodating the spring 58; wherein, optionally, one end of the connecting pin 57 is fixedly inserted into the first hemisphere 55 or the second hemisphere 56, and the other end is a free end; preferably, the spring 58 is fitted outside the connecting pin 57.

[0158] In the initial state, the first hemisphere 55 and the second hemisphere 56 are disposed within the universal joint housing 54, which forces the first hemisphere 55 and the second hemisphere 56 to abut against each other and combine into a sphere (e.g., Figure 30 (As shown).

[0159] As a further embodiment of this invention, a fixed housing 60 is also provided outside the universal joint housing 54; an elastic layer 61 is provided between the fixed housing 60 and the universal joint housing 54. The elastic layer 61 is made of rubber spring material and is used to provide elastic restoring force.

[0160] like Figure 28 As shown, preferably, the universal hinge shell 54 has several (preferably 3-6) slits at the opening near the end of the first hemisphere 55, so that the universal hinge shell 54 forms multiple petal-shaped parts at the opening that can elastically open outward and retract inward. In the initial state (i.e. without destructive external force), the petal-shaped parts hug the first hemisphere 55 and the second hemisphere 56 under the action of their own elasticity and the elastic layer 61, so that the two together form a complete sphere (a perfect sphere).

[0161] Preferably, the length of the gap in the axial direction of the universal joint 53 does not exceed the length of the first hemisphere 55; that is, the length of the gap does not exceed half the diameter of the universal joint 53.

[0162] When the first connecting part 51 and the second connecting part 52 tend to move away from each other under the action of external force, the first hemisphere 55 overcomes the elastic force of the petal-shaped part and the elastic layer 61 and moves away from the second hemisphere 56. The petal-shaped part is forced to open outward, and the entire universal joint 53 forms an elongated oval part. The fixed housing 60 provides support for the elastic layer 61. At the same time, the closing structure of the fixed housing 60 on the opening side of the universal joint groove shell 54 serves as a limiting structure to limit the maximum opening angle of the petal-shaped part, thereby preventing the first hemisphere 55 from completely detaching from the universal joint groove shell 54, so that the two always remain connected.

[0163] When external loads such as strong winds and earthquakes increase, the first hemisphere 55 is pulled away from the second hemisphere 56, the petal-shaped portion opens, and the elastic layer 61 is compressed. When the load decreases, the first hemisphere 55 is pressed closer to the second hemisphere 56 under the restoring force of the petal-shaped portion and the elastic layer 61. This process repeats, and the petal-shaped portion and the elastic layer 61 become an energy-absorbing component, which absorbs the external load and reduces its destructive force on the entire component.

[0164] Furthermore, the first hemisphere 55 is far from the second hemisphere 56, and the universal joint 53 is formed into an elongated oval shape. When the external force acting on the first hemisphere 55 deviates from the axial direction of the universal joint groove shell 54, the elongated universal joint 53 forms a lever structure, with its two ends abutting against the edge and bottom of the universal joint groove shell 54, respectively. This lever structure further amplifies the restoring force of the petal-shaped portion and the elastic layer 61.

[0165] In summary, during actual operation, the universal joint structure disclosed in this embodiment allows the universal joint head 53 to rotate within the universal joint groove shell 54, enabling the connection between the lower connecting plate 19 and the inclined cable connecting plate 42 to accommodate simple rotation between adjacent components. However, in the event of severe disasters such as earthquakes or strong winds, when the overall structure is damaged, the two ends of the connection between the lower connecting plate 19 and the inclined cable connecting plate 42 not only rotate but also move axially away. At this time, the first hemisphere 55 and the second hemisphere 56 move away from each other, creating a gap between them and forming an elongated spherical shape (i.e., forming an elongated oval component). The elongated spherical universal joint head 53 is restricted by the universal joint groove shell 54 during rotation and extension. When the external force is too large, the end of the universal joint groove shell 54 undergoes elastic deformation and is stretched open, thereby compressing the elastic layer 61 (e.g., Figure 28 As shown, the elastic layer 61 applies a reaction force to the end of the universal joint housing 54. This reaction force forms a lever relative to the horizontal line, causing the first hemisphere 55 and the second hemisphere 56 to tend to contract and return to their original position. At the same time, the deformation of the elastic layer 61 and the universal joint housing 54 also plays a role in energy dissipation. The inventive concept of this embodiment is to make the combination of the first hemisphere 55 and the second hemisphere 56 change from a spherical shape to an elongated spherical shape when subjected to stretching and rotation, thereby compressing the end of the universal joint housing 54 and compressing the elastic layer 61. This not only achieves the energy dissipation function, but also provides a restoring force between the two adjacent structures. During the process of restoring and straightening the entire device, this restoring force allows the universal joint head 53 to return to its original position after a slight external force is applied, which is conducive to rapid post-disaster repair and the quick restoration of urban infrastructure.

[0166] Example 9

[0167] This embodiment is basically the same as embodiment 8, except that:

[0168] like Figure 34-37 As shown, as a further improvement of embodiment 9, the universal joint 53 is an elliptical sphere in general, and includes a first elliptical hemisphere 62 and a second elliptical hemisphere 63 in sequence along its long axis; the two ends of the connecting pin 57 are respectively slidably inserted into the guide holes on the first elliptical hemisphere 62 and the second elliptical hemisphere 63 to form a guide limiting structure.

[0169] Spring 58 is fitted outside connecting pin 57, with its two ends abutting against the first ellipsoid 62 and the second ellipsoid 63 respectively, tending to force the two apart.

[0170] Compared with Embodiment 8, the universal joint 53 is an elliptical sphere with a variable major axis. Under the action of external force, as the first elliptical hemisphere 62 and the second elliptical hemisphere 63 approach and move away, the overall major axis length of the universal joint 53 changes, thereby causing the overall central axis of the universal joint 53 to deviate from the central axis of the universal joint groove shell 54 by a set angle (e.g., 30-60 degrees). The entire universal joint 53 and the universal joint groove shell 54 form an angle limiting structure.

[0171] Optionally, the first ellipsoid 62 and the second ellipsoid 63 are provided with pin grooves 59 opposite to each other; the pin grooves 59 include guide holes for accommodating connecting pins 57 and countersunk grooves for accommodating springs 58; in the initial state, there is a gap between the first ellipsoid 62 and the second ellipsoid 63. The internal cavity of the universal joint housing 54 is an elliptical cavity adapted to the universal joint head 53 in the initial state.

[0172] Similar to Embodiment 8, as a further embodiment of this embodiment, a fixed housing 60 is also provided on the outside of the universal hinge slot shell 54; an elastic layer 61 is provided between the fixed housing 60 and the universal hinge slot shell 54. Preferably, the opening of the universal hinge slot shell 54 is provided with several (preferably 3-6) slits, thereby forming multiple petal-shaped portions at the opening of the universal hinge slot shell 54 that can elastically open outward and retract inward.

[0173] The difference between this embodiment and the previous embodiment is that this embodiment uses two ellipsoidal hemispheres to form the universal joint 53, and the two ellipsoidal hemispheres have a gap in the initial state (e.g., Figure 34 As shown). When two adjacent modules rotate relative to each other, the universal joint also rotates within the universal joint slot housing 54. At this time, the two ellipsoidal hemispheres are compressed and rotated (as shown). Figure 36 As shown), more rotational space is obtained by reducing the size of the intermediate gap. When the first ellipsoid 62 and the second ellipsoid 63 abut, the two ellipsoids form an integral ellipsoidal shape. At this time, the universal joint housing 54 abuts against the side walls of the first ellipsoid 62 and the second ellipsoid 63, preventing them from continuing to rotate (as shown). Figure 37 As shown), this means that the universal joint structure can rotate relatively freely within the universal joint slot shell 54 as a quasi-ellipsoidal structure with a variable major axis between the initial state and the ellipsoidal state in which the two hemispheres are integrated. Figure 37The figure shows the maximum free rotation angle, with energy dissipated by the spring during rotation. Once the two ellipsoids form a single ellipsoid, the universal joint structure can no longer rotate. The above rotation scenario applies to normal swaying between the inclined cable and the main structure under normal conditions. Under extreme conditions (such as natural disasters like earthquakes, tsunamis, and strong winds), the two ellipsoids form a unified ellipsoid shape and continue to rotate. At this time, the universal joint continues to rotate within the universal joint slot shell 54, causing the end of the universal joint slot shell 54 to undergo elastic deformation and compress the elastic layer 61. During this process, the elastic deformation of the end of the universal joint slot shell 54 and the elastic deformation of the elastic layer 61 also provide energy dissipation and continuously provide restoring force for the universal joint 53 to return to its original position. Specifically, the elastic layer 61 and the end of the universal joint slot shell 54, at the point of contact with the universal joint 53, provide elastic force through leverage to return the universal joint 53 to its initial horizontal state. During the process of realigning and adjusting the device, this restoring force allows the universal joint 53 to return to its original position after a slight external force is applied, which is conducive to rapid post-disaster repair and the quick restoration of urban infrastructure.

[0174] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A prefabricated reinforcement node for a large-span H-shaped cross-section structural member, characterized in that, Includes lower members, diagonal web members, end diagonal cables, intermediate diagonal cables, and struts; The diagonal web members are equipped with prefabricated reinforcement nodes. The lower end of the prefabricated reinforcement node is connected to one end of the strut or the end cable; The other end of the end cable is connected to the lower end of the strut; The two ends of the intermediate inclined cable are respectively connected to the ends of two adjacent struts; The upper end of the prefabricated reinforcement node is provided with a U-shaped connector; The two protruding ends of the U-shaped connector are connected to the diagonal web member; The prefabricated reinforcement node includes a first plate and a second plate arranged symmetrically. The first plate and the second plate clamp the lower rod from the front and rear directions; The first plate, the second plate, and the lower rod are provided with through holes opposite to each other, and the first plate, the second plate, and the lower rod are fixedly connected by fasteners passing through the through holes; When the first plate and the second plate are joined together, they form a column including a receiving groove, the shape and size of which match the lower rod. The lower rod is an I-beam, and the accommodating groove is also I-beam shaped. The first plate and the second plate have a bow-shaped structure; The midpoint between the first plate and the second plate corresponds to the web of the lower rod. The positions of the upper and lower protrusions of the first plate and the second plate correspond to the upper and lower flanges of the lower rod. A stiffening rib is also provided between the upper protrusion and the lower protrusion to enhance the rigidity of the first plate and the second plate.

2. The prefabricated reinforcement node for a large-span H-shaped cross-section member according to claim 1, characterized in that, The top of the first plate and the second plate are also provided with an upper connecting plate; The upper connecting plate is fastened to the U-shaped connector.

3. The prefabricated reinforcement node for a large-span H-shaped cross-section member according to claim 2, characterized in that, The U-shaped connector includes a lower base plate and two upper connecting parts; The lower base plate is used to connect with the upper connecting plate; The two upper connecting parts are integrally and symmetrically arranged with the lower base plate; The two upper connecting parts are respectively connected to the two diagonal web members; The lower base plate is an isosceles right triangle structure; The hypotenuse of the triangle is inserted into the gap between the first plate and the second plate and abuts against the upper end of the lower rod. The connecting parts are fixedly installed on the two right-angled sides of the triangle.

4. The prefabricated reinforcement node for a large-span H-shaped cross-section member according to claim 1, characterized in that, Both the first plate and the second plate are fixedly provided with a lower connecting plate at their bottoms; A support rod connecting plate is provided at the upper end of the support rod; A cable connection plate is provided at one end of the end cable that connects to the prefabricated reinforcement node. The strut connecting plate or the inclined cable connecting plate is inserted between the two lower connecting plates and fastened together with fasteners.

5. The prefabricated reinforcement node for a large-span H-shaped cross-section member according to claim 4, characterized in that, The strut connecting plate and the lower connecting plate connected to the strut connecting plate are rectangular; The inclined cable connecting plate and the lower connecting plate connected to the inclined cable connecting plate are semi-dovetail shaped. The direction of the semi-dovetail shape is the extension direction of the end inclined cable. The semi-dovetail shaped inclined cable connecting plate and the lower connecting plate are provided with a main connecting hole and two secondary connecting holes arranged in an equilateral triangle. The extension direction with the main connecting hole as the vertex is the same as the extension direction of the end inclined cable.

6. The prefabricated reinforcement node for a large-span H-shaped cross-section member according to claim 3, characterized in that, The length of the hypotenuse of the lower plate is equal to the length of the upper end of the first plate and the second plate. The inclined upper connecting part abuts against the lower rod at a lower angle; The top of the upper connecting plate is provided with an inclined abutment structure that matches the inclined surface of the upper connecting part, for abutting against the upper connecting part.

7. The prefabricated reinforcement node for a large-span H-shaped cross-section member according to claim 3, characterized in that, It also includes sliding tubes; The upper connecting part and the inclined web rod are sleeved in the sliding tube, and the upper connecting part and the inclined web rod are connected by fasteners passing through the upper connecting part, the inclined web rod and the sliding tube.

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