Steel truss segmental erection joint structure

Abstract

The utility model discloses a kind of steel truss segmented erection connecting joint structure, including several steel trusses, adjacent steel truss is connected by connecting joint, the connecting joint has arc-shaped reinforcing rib, the connecting joint includes the adapter seat of detachable connection on arc-shaped reinforcing rib, at least one plug-in end for steel truss connection is provided on the upper portion of the adapter seat, each plug-in end includes a first positioning block and second positioning block corresponding steel truss one side and the other side setting, the first positioning block and second positioning block are oppositely arranged, the first positioning block and second positioning block are oppositely provided with one insertion slot, two insertion slots can limit the two sides corresponding on steel truss, and this steel truss connecting joint is convenient to connect, the number of connecting joint access steel truss is adjustable, and installation is simple when connecting, convenient to maintain disassembly.

Description

Technical Field

[0001] This utility model relates to the field of steel truss technology, specifically to a segmented connection node structure for steel truss. Background Technology

[0002] Steel trusses, due to their large span and high rigidity, are widely used in large-scale projects such as bridges and stadiums. However, limitations in transportation length, hoisting capacity, and processing equipment necessitate a segmented prefabrication in the factory followed by on-site assembly. The connection nodes are crucial for ensuring the overall structural stability. Currently, steel truss segmental connections are primarily achieved through welding. However, welded nodes are susceptible to deformation or cracking due to welding stress, and the weld quality is difficult to control precisely. Furthermore, it is difficult for construction workers to fix the position of the steel truss during welding, which can affect welding accuracy. Welding is also time-consuming and inconvenient for subsequent maintenance and disassembly. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a segmented steel truss connection node structure to solve the problems mentioned in the background technology, such as the inconvenience of connecting steel truss connection nodes with arc-shaped reinforcing ribs to several other steel trusses, the limited number of steel trusses that the connection nodes can access, and the complex, time-consuming, and labor-intensive installation and maintenance of the connection nodes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a segmented steel truss connection node structure, comprising a plurality of steel trusses, adjacent steel trusses being connected by connection nodes, wherein the connection node has an arc-shaped reinforcing rib, and the connection node includes an adapter seat detachably connected to the arc-shaped reinforcing rib, wherein the upper part of the adapter seat is provided with at least one plug-in end for connecting the steel truss, each plug-in end including a first positioning block provided on one side of the corresponding steel truss and a second positioning block provided on the other side of the corresponding steel truss, the first positioning block and the second positioning block being arranged opposite to each other, and each of the first positioning block and the second positioning block being provided with a slot opposite to each other, the two slots being able to cooperate to limit the corresponding two sides of the steel truss.

[0005] As a further improvement of this utility model, the bottom of the adapter is provided with an arched hole that engages with the arc-shaped reinforcing rib, and the arched hole is fixed by bolts after engaging with the arc-shaped reinforcing rib.

[0006] As a further improvement of this utility model, the plug-in end also has a number of adjustment holes corresponding to the slot positions, and the adjustment holes are evenly distributed in the length direction of the slot on the side walls of the first positioning block and the second positioning block.

[0007] As a further improvement of this utility model, the adjusting hole is provided with a clamping bolt for fixing the steel truss, and the clamping bolt can abut against the steel truss.

[0008] As a further improvement of this utility model, the slot is a T-shaped slot for inserting an I-shaped steel truss.

[0009] Compared with existing technologies, this utility model provides a segmented steel truss connection node structure with the following advantages: the adapter seat and the arc-shaped reinforcing rib are detachably connected, and the positioning block and slot at the plug-in end enable plug-in assembly, eliminating the need for on-site welding and making disassembly and assembly more convenient, significantly reducing the difficulty and time required for high-altitude construction. The arc-shaped reinforcing rib enhances the node rigidity, and the symmetrical slot structure of the first and second positioning blocks provides stable positioning on both sides of the steel truss, effectively avoiding deformation and cracking caused by welding stress, resulting in better connection stability. The precise matching design of the positioning block and slot enables rapid alignment of the steel truss, avoiding human error during welding, significantly improving connection accuracy. Furthermore, this solution can be adapted to connect different numbers of steel trusses, making it more versatile. Attached Figure Description

[0010] Figure 1 This is the front view of the present invention; Figure 2 The accompanying drawings are for the specification of this utility model. Figure 1 Enlarged view of the structure of section A; Figure 3 This is a partial top view of the plug-in end and the steel truss of this utility model; Figure 4 This is a partial three-dimensional exploded view of the plug-in end of this utility model.

[0011] Reference numerals in the attached drawings: 1. Steel truss; 2. Arc-shaped reinforcing rib; 3. Adapter seat; 4. Plug end; 5. First positioning block; 6. Second positioning block; 7. Slot; 8. Arch hole; 9. Adjustment hole; 10. Tightening bolt. Detailed Implementation

[0012] As shown in the figure, to achieve the above objectives, this utility model provides a segmented connection node structure for a steel truss 1, including several steel trusses 1. Adjacent steel trusses 1 are connected by connection nodes. The connection node has an arc-shaped reinforcing rib 2. The connection node includes an adapter seat 3 detachably connected to the arc-shaped reinforcing rib 2. The adapter seat 3 has at least one plug-in end 4 for connecting the steel truss 1. Each plug-in end 4 includes a first positioning block 5 corresponding to one side of the steel truss 1 and a second positioning block 6 corresponding to the other side of the steel truss 1. The first positioning block 5 and the second positioning block 6 are arranged opposite to each other. The first positioning block 5 and the second positioning block 6 are each provided with a slot 7 opposite to each other. The two slots 7 can cooperate to limit the corresponding two sides of the steel truss 1.

[0013] In implementation, a slot 7 is recessed on the inner side of the first positioning block 5 and the second positioning block 6. The openings of the two slots 7 are opposite each other, and the size of the slots is adapted to the side wall thickness of the steel truss 1. The number of the first positioning block 5 and the second positioning block 6 can be set according to actual needs. The slots 7 on each set of the first positioning block 5 and the second positioning block 6 cooperate to form a workstation for inserting the steel truss 1. During assembly, the adapter 3 is detachably connected to the arc-shaped reinforcing rib 2. The connection method can be fixed by multiple bolts or snap-fit, completing the assembly of the main body of the connection node. Then, the ends of adjacent steel trusses 1 are inserted into the two slots 7 of the insertion end 4. The slots 7 on the first positioning block 5 and the second positioning block 6 together form a clamping and limiting effect on both sides of the steel truss 1, realizing the rapid alignment and initial fixation of the steel truss 1. The entire assembly process requires no on-site welding and can be completed simply by plugging and connecting, which greatly reduces the difficulty of high-altitude construction. At the same time, the limiting function of slot 7 effectively prevents the steel truss 1 from shifting. Combined with the enhancement of node stiffness by arc-shaped reinforcing rib 2, the connection stability is significantly improved, avoiding deformation problems caused by welding stress. If it is necessary to replace the steel truss 1 or add or remove the steel truss 1 during subsequent maintenance, those skilled in the art can achieve this by replacing the adapter 3.

[0014] As an improved specific implementation, the bottom of the adapter 3 is provided with an arched hole 8 that engages with the arc-shaped reinforcing rib 2, and the arched hole 8 is fixed by bolts after engaging with the arc-shaped reinforcing rib 2.

[0015] During implementation and assembly, the arched hole 8 at the bottom of the adapter 3 is aligned with the upper part of the arc-shaped reinforcing rib 2. The adapter 3 is then fitted and snapped together along the length or radial direction of the arc-shaped reinforcing rib 2, ensuring the inner wall of the arched hole 8 completely fits the outer arc surface of the arc-shaped reinforcing rib 2, achieving pre-positioning. After pre-positioning, bolt holes are made at corresponding positions on both side walls of the adapter 3. These bolt holes penetrate the side walls of the arched hole 8 and extend into the pre-set threaded holes of the arc-shaped reinforcing rib 2. Bolts are passed through these bolt holes and tightened into the threaded holes, securing the adapter 3 firmly to the arc-shaped reinforcing rib 2. This connection method requires no welding; disassembly and assembly only require tightening or loosening the bolts, making operation convenient. Furthermore, the fitting and snapping design of the arched hole 8 and the arc-shaped reinforcing rib 2, combined with the axial fixing of the bolts, effectively distributes stress and improves the load-bearing stability of the joint. Multi-point fixing is used during bolt installation, ensuring a stable connection between the adapter 3 and the arc-shaped reinforcing rib 2.

[0016] As an improved specific implementation, the plug end 4 also has a number of adjustment holes 9 corresponding to the positions of the slots 7. The adjustment holes 9 are evenly distributed along the length direction of the slots 7 on the side walls of the first positioning block 5 and the second positioning block 6.

[0017] When implementing this solution, the adjustment hole 9 adopts a circular through hole structure. The hole diameter is set according to the size of the subsequent matching fasteners. The number of holes can be flexibly set according to the length of the steel truss 1 and the load-bearing requirements. For example, 3-5 adjustment holes 9 are evenly set along the length of the slot 7 on each side positioning block. The spacing between adjacent adjustment holes 9 is consistent to ensure uniform force distribution.

[0018] As an improved embodiment, the adjusting hole 9 is provided with a clamping bolt 10 for fixing the steel truss 1, and the clamping bolt 10 can abut against the steel truss 1.

[0019] In implementation, the steel truss 1 is first inserted into the slots 7 of the first positioning block 5 and the second positioning block 6 to achieve initial positioning and alignment. Then, based on the fixing requirements of the steel truss 1, an appropriate adjustment hole 9 is selected, and the clamping bolt 10 is screwed into the adjustment hole 9 until the inner end of the clamping bolt 10 is tightly abutted against the side wall of the steel truss 1. The clamping bolt 10 is then tightened further, using its axial pressure to create lateral clamping and fixing of the steel truss 1, further restricting its displacement within the slot 7. This structure achieves dual fixing of the steel truss 1 through the synergistic effect of the clamping bolt 10 and the slot 7, ensuring both convenient and rapid alignment, and enhancing the connection's robustness through the adjustable pressure of the clamping bolt 10, effectively preventing loosening or displacement of the steel truss 1 during use. Furthermore, the clamping bolt 10 can be easily installed and removed using only conventional tools. Combined with the detachable fitting seat 3 and the arc-shaped reinforcing rib 2, this further improves the overall structure's assembly and disassembly efficiency and maintenance convenience.

[0020] As an improved specific implementation, slot 7 is a T-shaped slot 7 for inserting the I-shaped steel truss 1.

[0021] In implementation, the ends of the I-shaped steel truss 1 are aligned with the slots of the T-slots 7 and inserted along the length of the slots 7. This allows the upper side plates of the steel truss 1 to engage with the transverse slots of the T-slots 7, while the web plate fits against the longitudinal slots of the T-slots 7. The two T-slots 7 on the first positioning block 5 and the second positioning block 6 are positioned opposite each other, together limiting the movement of the side flanges and web plate of the I-shaped steel truss 1 in the horizontal and vertical directions. The guiding effect of the T-slots 7 ensures that the steel truss 1 is quickly and accurately aligned, avoiding human error, improving construction efficiency, and achieving a stable connection without welding, thus avoiding deformation and cracking problems caused by welding stress.

[0022] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A segmented steel truss connection node structure, comprising a plurality of steel trusses, adjacent steel trusses being connected by connection nodes, wherein the connection nodes have arc-shaped reinforcing ribs, characterized in that, The connection node includes an adapter seat detachably connected to the arc-shaped reinforcing rib. The upper part of the adapter seat is provided with at least one plug-in end for connecting the steel truss. Each plug-in end includes a first positioning block provided on one side of the steel truss and a second positioning block provided on the other side of the steel truss. The first positioning block and the second positioning block are arranged opposite to each other. Each of the first positioning block and the second positioning block is provided with a slot opposite to each other. The two slots can cooperate to limit the corresponding two sides of the steel truss.

2. The steel truss segmented assembly connection node structure according to claim 1, characterized in that, The bottom of the adapter is provided with an arched hole that engages with the arc-shaped reinforcing rib. The arched hole is then fixed with bolts after engaging with the arc-shaped reinforcing rib.

3. The steel truss segmented assembly connection node structure according to claim 1, characterized in that, The plug-in end also has several adjustment holes corresponding to the slot positions, and the adjustment holes are evenly distributed along the length direction of the slot on the side walls of the first positioning block and the second positioning block.

4. The steel truss segmented assembly connection node structure according to claim 3, characterized in that, The adjusting hole is provided with a clamping bolt for fixing the steel truss, and the clamping bolt can abut against the steel truss.

5. The steel truss segmented assembly connection node structure according to claim 1, characterized in that, The slot is a T-shaped slot for inserting an I-shaped steel truss.

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