Steel bar truss and method of manufacturing the same

Abstract

The present application belongs to the technical field of fabricated building floor, and discloses a steel bar truss and a manufacturing method thereof, which comprises a plurality of vertical steel bars, a plurality of quick positioning members, at least two adjustable support connecting assemblies and a hoisting member. The steel bar truss is provided with multiple functions of hoisting, alignment and support connection by integrating the quick positioning members, the adjustable support connecting assemblies and the integrally formed hoisting member in the truss body. The multiple functions are integrated in the truss body structure without additional accessories, which has high integration degree, reduces secondary processing and binding process, improves component production and construction efficiency, improves hoisting safety and installation precision, reduces material and labor costs, and provides better adaptability for the application of the truss in the automatic production and the fabricated building system. The steel bar truss manufacturing method realizes high precision, automation and standardization of the truss production process, ensures the structural stability and installation precision of the finished product, and reduces manual operation.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building floor slab technology, and in particular to a steel truss and its manufacturing method. Background Technology

[0002] In prefabricated steel reinforcement frame systems, the steel truss is the core load-bearing skeleton of the component, providing necessary structural support and shape retention before and after concrete pouring. Among them, the H-shaped steel truss, due to its excellent vertical load-bearing capacity and high structural stability, is particularly suitable for replacing or partially replacing vertically distributed steel reinforcement in wall components to improve the wall's compressive strength and overall stiffness. Its H-shaped cross-section structure can provide continuous vertical support in the height direction, making it widely used in prefabricated components with large vertical stresses, such as wall panels and shear walls.

[0003] Existing standard H-shaped steel trusses have a relatively limited function, only meeting basic vertical support requirements and lacking adaptability to prefabricated component production and on-site construction processes. Specifically, the truss body does not have pre-designed lifting points for demolding, transportation, and hoisting. Additional components are required during component forming and installation to complete the hoisting operation, increasing procedures, reducing production efficiency, and posing a safety hazard of components falling. Furthermore, when connecting standard H-shaped trusses to formwork systems, horizontal supports, or diagonal bracing structures, manual binding or welding of additional steel reinforcement is still necessary, resulting in cumbersome operations and low automation. Since each additional component of the H-shaped truss relies on manual secondary positioning and installation, the process is complex and positional accuracy is difficult to guarantee. This often leads to deviations in the hoisting, positioning, and verticality correction of the components, causing installation errors in subsequent processes, affecting the overall project quality, and increasing material and labor costs. This limits the widespread application of H-shaped trusses in automated production and high-efficiency prefabricated construction. Summary of the Invention

[0004] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this invention is to provide a steel truss and its manufacturing method, achieving an integrated design of the steel truss's functions, eliminating subsequent manual secondary processing steps, thereby reducing material and labor costs. It allows for direct hoisting during component forming and installation stages, and can be quickly connected to formwork systems, horizontal supports, or diagonal bracing structures without the need for additional parts or manual binding, ensuring the positioning accuracy of each functional component, thus improving the overall installation quality and construction efficiency from the source.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A steel truss, comprising:

[0007] Multiple vertical reinforcing bars are spaced apart horizontally and arranged parallel to each other;

[0008] Multiple quick positioning components are arranged at intervals along the vertical direction. Each quick positioning component is straddled and fixedly connected between multiple vertical steel bars in the horizontal direction, and corresponds one-to-one with the position of the grid skeleton of the steel mesh template. Each quick positioning component has a snap-fit ​​part at both ends along its length direction for snap-fitting and fixing with the corresponding grid skeleton.

[0009] At least two adjustable support connection components are arranged at intervals along the vertical direction on the vertical steel bars. Each adjustable support connection component is straddled and connected between multiple vertical steel bars. Its two ends can extend out of the steel mesh template and abut against the mesh skeleton for connection with horizontal or diagonal supports, and can finely adjust the verticality of the steel mesh template.

[0010] The lifting component has its two ends integrally formed and connected to the top of the adjacent vertical reinforcing bars.

[0011] In some alternative embodiments, the quick positioning component is a plate-shaped member with snap-fit ​​grooves at both ends along the length of the quick positioning component for snapping with the grid skeleton at the corresponding position.

[0012] In some alternative embodiments, the inner width of the slot is approximately equal to the width of the corresponding mesh skeleton.

[0013] In some alternative embodiments, the width of the snap-fit ​​groove gradually widens from the bottom of the groove to the opening.

[0014] In some alternative embodiments, the opposite sidewalls of the snap-fit ​​groove are provided with barb structures at the groove opening to prevent the mesh skeleton from coming off during the snap-fit ​​process.

[0015] In some alternative embodiments, at least two of the adjustable support connection components are located at equal vertical divisions of the vertical reinforcing bars.

[0016] In some alternative embodiments, the adjustable support connection assembly includes a screw, a nut, an abutment plate, and an adapter; the screw is horizontally straddling and fixedly connected between multiple vertical reinforcing bars, with its two ends passing through the steel mesh template and the abutment plate in sequence; the abutment plate abuts against the mesh frame of the steel mesh template; the nut rotates along the screw thread and abuts against the side of the abutment plate opposite to the mesh frame to adjust the support length; the adapter is located on the side of the abutment plate opposite to the mesh frame and is used to connect with the horizontal support or the diagonal support.

[0017] In some alternative embodiments, the adapter includes two adapter plates and an adapter rod arranged opposite each other along the width direction of the abutment plate; the two adapter plates are provided with through holes, and the adapter rod passes through the through holes and the horizontal support end or the inclined support end to connect the horizontal support or the inclined support to the adapter.

[0018] In some alternative embodiments, a gasket is sandwiched between the nut and the abutment plate.

[0019] A method for manufacturing a steel truss, for producing any of the steel trusses described above, includes the following steps:

[0020] S1: Determine the horizontal spacing between the multiple vertical reinforcing bars, the vertical spacing of the multiple quick positioning pieces and their correspondence with the grid skeleton of the steel mesh template, and clarify the preset installation positions of at least two of the adjustable support connection components;

[0021] S2: The top horizontal steel bar used to form the lifting component is bent to form a lifting component structure that can be integrally connected with the adjacent vertical steel bar;

[0022] S3: Using an automatic positioning device, the multiple vertical steel bars, the hoisting components, the quick positioning components, and the adjustable support connection components are placed in sequence according to the preset positions determined in step S1 and installed into the truss mold, so that each component is kept stable and fixed in space to form a truss frame to be welded.

[0023] S4: An automated welding robot is used to automatically weld the components within the truss frame, forming the steel truss as a whole; during the welding process, the dimensional consistency and positional accuracy of key parts are monitored and controlled in real time.

[0024] S5: The verticality, horizontal spacing and form and position parameters of the hoisting components of the welded steel truss are tested; after passing the inspection, the steel truss is removed from the truss mold to obtain the final product.

[0025] The beneficial effects of this invention are:

[0026] This invention provides a steel truss, comprising multiple vertical steel bars, multiple quick-positioning components, at least two adjustable support connection assemblies, and a hoisting component. By integrating the quick-positioning components, adjustable support connection assemblies, and one-piece hoisting component into the truss body, the steel truss possesses multiple functions including hoisting, alignment, and support connection. All these functions are integrated into the truss body structure, requiring no additional components, resulting in a high degree of integration. This not only reduces secondary processing and binding procedures, significantly improving component production and construction efficiency, but also enhances hoisting safety and installation accuracy, reduces material and labor costs, and provides better adaptability for the application of trusses in automated production and prefabricated building systems.

[0027] This invention provides a method for manufacturing steel trusses. By pre-setting component positions, integrating hoisting parts processing, automated assembly and welding, and real-time monitoring of key dimensions and finished product inspection, it achieves high precision, automation, and standardization in the truss production process. This not only significantly improves production efficiency and batch consistency but also ensures the structural stability, verticality, and installation accuracy of the finished product, while reducing manual operations and lowering construction safety risks. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the steel truss structure described in this invention;

[0029] Figure 2 This is a schematic diagram of the structure of the quick positioning component described in this invention;

[0030] Figure 3 This is a schematic diagram of the adjustable support connection component described in this invention.

[0031] In the picture:

[0032] 1. Vertical reinforcing bars; 2. Quick positioning components; 21. Clip groove; 22. Hook structure; 3. Adjustable support connection assembly; 31. Screw; 32. Nut; 33. Abutment plate; 34. Adapter; 4. Lifting components. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0035] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," "combined," "coupled," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection via an intermediate medium; or the internal communication of two components or the interaction between two components. As examples, a direct connection refers to two parts or components being connected together without the need for an intermediate medium, while an indirect connection refers to two parts or components each being connected to at least one intermediate medium, with the connection achieved through the intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0037] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0038] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0039] In this invention, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientations or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, 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 this invention. Furthermore, in the context, it should be understood that when an element is mentioned as being "upper" or "lower" than another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as "upper side," "lower side," "left side," "right side," "front side," and "rear side" not only represent positive orientation but can also be understood as lateral orientation. For example, "above," "on top of," "upper side of," and "above" the first feature "above" or "on the second feature" includes the first feature being directly above, to the upper left, to the upper right, to the upper front, and to the upper rear of the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The terms "below," "under," "below," and "below" for "first feature" and "second feature" include situations where the first feature is directly below, to the lower left, to the lower right, in front of, or behind the second feature, or simply indicate that the first feature is at a lower horizontal level than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0040] In existing technologies, steel trusses are typically used as the internal support framework for steel mesh formwork (such as wire mesh or reinforcing mesh), and the two are fixed together by manual binding or other methods. Once the steel mesh formwork is fixed, its position and angle become the forming boundary during concrete wall pouring. Therefore, the verticality, flatness, and overall stability of the formwork must be maintained before pouring to ensure the quality of wall formation and structural load-bearing performance. However, the steel truss and steel mesh formwork are mostly fixed using a rigid structure, making it difficult to fine-tune the position or angle of the formwork after installation.

[0041] During demolding, transportation and hoisting, traditional steel trusses usually rely on manual handling or simple lifting lugs and temporary welding points for overall lifting. In the component forming and installation stage, additional components are required to complete the hoisting operation, which increases the number of procedures, reduces production efficiency and poses a safety hazard of components falling.

[0042] Please refer to Figures 1 to 3As shown, to solve the above problems, this embodiment provides a steel truss, including multiple vertical steel bars 1, multiple quick positioning components 2, at least two adjustable support connection components 3, and a hoisting component 4; wherein, the multiple vertical steel bars 1 are spaced apart horizontally and arranged parallel to each other; the multiple quick positioning components 2 are spaced apart vertically, each quick positioning component 2 spans across and is fixedly connected to the multiple vertical steel bars 1 horizontally, and corresponds one-to-one with the position of the grid skeleton of the steel mesh template; each quick positioning component 2 has a snap-fit ​​part at both ends along its length direction for snap-fitting and fixing with the corresponding grid skeleton; at least two adjustable support connection components 3 are spaced apart vertically on the vertical steel bars 1, each adjustable support connection component 3 spans across and is connected to the multiple vertical steel bars 1, and its two ends can extend out of the steel mesh template and abut against the grid skeleton for connection with horizontal or diagonal supports, and can finely adjust the verticality of the steel mesh template; the two ends of the hoisting component 4 are integrally formed and connected to the top of the adjacent vertical steel bars 1.

[0043] By integrating quick-positioning components 2, adjustable support connection components 3, and one-piece molding hoisting components 4 into the truss body, the steel truss possesses multiple functions including hoisting, alignment, and support connection. The hoisting components 4 are integrally molded at both ends and connected to the top of adjacent vertical reinforcing bars 1, pre-setting reliable lifting points during the manufacturing stage. This eliminates the need for additional welding or binding of lifting rings, reducing processes and improving the safety of precast component demolding, transportation, and hoisting. It also avoids the risk of additional lifting points falling off. The truss can be directly hoisted after arriving at the formwork without secondary processing, improving production efficiency and providing a standardized interface for mechanized grasping and hoisting. Multiple quick-positioning components 2 correspond one-to-one with the grid skeleton positions, and each quick-positioning component 2 can be quickly and securely connected to the grid skeleton of the steel formwork through its two end clips, achieving automatic alignment with high positioning accuracy. This eliminates the need for manual binding, avoiding offsets caused by manual binding and improving the dimensional accuracy of the concrete after molding. The adjustable support connection components 3 allow for fine-tuning of the truss's verticality on the construction site, preventing cumulative deviations and providing connection positions for diagonal or horizontal supports. Multiple functions are integrated into the truss structure itself, requiring no additional components. The high degree of integration not only reduces secondary processing and binding procedures, significantly improving component production and construction efficiency, but also enhances hoisting safety and installation accuracy, reduces material and labor costs, and provides better adaptability for the application of trusses in automated production and prefabricated building systems.

[0044] It is understandable that the vertical reinforcing bars 1, quick positioning components 2, adjustable support connection components 3, and lifting components 4 can be fixedly connected by welding.

[0045] Among them, lifting component 4 can be selected as U-shaped steel bars. U-shaped steel bars have a semi-closed curved shape, continuous cross section, strong load-bearing capacity, and are not easy to deform or break, thus ensuring lifting safety.

[0046] like Figure 2 As shown, specifically, the quick positioning component 2 is a plate-shaped member with snap-fit ​​grooves 21 at both ends along its length for snapping with the corresponding mesh skeleton. The plate-shaped quick positioning component 2 has a larger contact area than traditional round steel or thin strips, and has stronger resistance to torsion and lateral displacement, making it less likely for the truss to drift or deflect during concrete pouring. The snap-fit ​​grooves 21 at both ends of the quick positioning component 2 can be directly fitted with the mesh skeleton of the steel mesh template, realizing quick and accurate alignment of the template and the truss, eliminating the need for manual binding. Furthermore, the processing technology for opening snap-fit ​​grooves 21 on plate-shaped components is mature, with high material utilization, facilitating large-scale, low-cost production, and enabling mass production.

[0047] More specifically, the inner width of the slot 21 is approximately equal to the width of the corresponding mesh skeleton. Through the equal width design, the mesh skeleton is inserted into the slot 21 and its two sides are tightly against the slot wall. The mesh skeleton can only enter along the slot direction and cannot shift left or right, forming a clamping effect. During the concrete pouring process, it maintains a precise position, ensures the stability of the overall geometric dimensions, and is not prone to shifting or shaking.

[0048] Furthermore, the width of the snap-fit ​​groove 21 gradually widens from the bottom to the opening, increasing the snap-fit ​​installation tolerance. The slightly wider opening can accommodate minor deviations or angular errors in the mesh skeleton. Even if the mesh skeleton is slightly deviated in angle when inserted for the first time, it can slide in smoothly and lock into place, so as to naturally adjust to the correct position. Even if the initial insertion is off-center, it will automatically limit the position at the bottom of the groove, making it less likely to get stuck or damaged, thus reducing the difficulty of installation.

[0049] In some optional embodiments, the opposite sidewalls of the snap-fit ​​groove 21 are provided with barb structures 22 at the groove opening to prevent the mesh skeleton from coming out during the snap-fit ​​process; wherein, the barb structure 22 forms a lateral obstruction at the groove opening, forming a one-way locking effect on the mesh skeleton, the mesh skeleton can be smoothly inserted into the groove, but is blocked when pulled out in the reverse direction, effectively preventing it from accidentally coming out.

[0050] like Figure 1 As shown, in some optional embodiments, at least two adjustable support connection components 3 are located at equally spaced positions in the vertical direction of the vertical reinforcing bars 1, so that each adjustable support connection component 3 is evenly distributed in the vertical direction. This evenly distributed arrangement is beneficial for uniformly correcting the verticality of the entire steel mesh template, reducing the accumulation of deviations, and improving the installation accuracy and finished product quality of precast components; at the same time, the two ends of the adjustable support connection components 3 can be connected to horizontal supports or diagonal supports respectively, and the even arrangement can make the distribution of support force more reasonable, thereby improving the overall structural stability of the truss.

[0051] For example, if a steel truss is applied to a building structure, the typical floor height of a single-story building is approximately 2.8m to 3.2m. To ensure good support stability of the truss within this common height range, two adjustable support connection components 3 can be installed and fixed at three equal division points of the vertical reinforcing bars 1. By arranging the adjustable support connection components 3 at equal division points along the height of the truss, the support force can be more evenly distributed in the vertical direction, which is beneficial for balanced correction of the overall verticality of the steel mesh formwork and avoids deformation caused by localized stress concentration. At the same time, the three-division arrangement can effectively reduce the accumulation of deviations, improve the forming accuracy and installation accuracy of precast components, and enhance the overall stability and reliability of the truss during casting, hoisting, and assembly.

[0052] like Figure 3 As shown, specifically, the adjustable support connection assembly 3 includes a screw 31, a nut 32, an abutment plate 33, and an adapter 34. The screw 31 is horizontally straddling and fixedly connected between multiple vertical reinforcing bars 1, with its two ends passing through the steel mesh template and the abutment plate 33 in sequence. The abutment plate 33 abuts against the grid skeleton of the steel mesh template. The nut 32 rotates along the thread of the screw 31 and abuts against the side of the abutment plate 33 away from the grid skeleton to adjust the support length. The adapter 34 is located on the side of the abutment plate 33 away from the grid skeleton and is used to connect with horizontal or diagonal supports. The screw 31 straddles multiple vertical reinforcing bars 1, with both ends passing through the template and fixed to the abutment plate 33, thus adjusting the support length. The supporting force is evenly transmitted through the screw 31, nut 32, and abutment plate 33, thereby improving the stability of the overall truss structure and reducing deformation. At the same time, the nut 32 can adjust the support length to ensure that the abutment plate 33 is tightly abutted against the grid skeleton, so that the supporting force is evenly distributed, avoiding excessive local stress and improving construction accuracy and finished product quality. The adapter 34 is directly connected to the horizontal or diagonal support, realizing a quick and firm connection between the truss and the support system without additional binding or welding, improving construction efficiency and assembly standardization, while ensuring even distribution of supporting force. Therefore, the above design not only facilitates fine-tuning of verticality on site, but also improves construction efficiency and assembly standardization.

[0053] More specifically, the adapter 34 includes two adapter plates and an adapter rod arranged opposite each other along the width direction of the abutment plate 33; the two adapter plates have through holes, and the adapter rod passes through the through holes and the horizontal support end or the inclined support end to connect the horizontal support or the inclined support to the adapter 34, so that the horizontal support or the inclined support is hinged to the adjustable support connection assembly 3, which can be quickly installed and disassembled, improving construction efficiency.

[0054] In some embodiments, a washer is provided between the nut 32 and the abutment plate 33. The washer increases the contact area between the nut 32 and the abutment plate 33, avoids the nut 32 pressing directly on the abutment plate 33 to prevent local stress concentration, reduces local deformation or damage to the abutment plate 33, and improves the durability and safety of the support assembly.

[0055] This embodiment also provides a method for manufacturing a steel truss, used to produce a steel truss in any of the above embodiments, comprising the following steps:

[0056] S1: Determine the horizontal spacing between multiple vertical reinforcing bars 1, the vertical spacing of multiple quick positioning pieces 2 and their correspondence with the grid skeleton of the steel mesh template, and clarify the preset installation positions of at least two adjustable support connection components 3.

[0057] S2: The top horizontal steel bar used to form the lifting component 4 is bent to form a lifting component 4 structure that can be integrally connected with the adjacent vertical steel bar 1;

[0058] S3: Using an automatic positioning device, multiple vertical steel bars 1, hoisting components 4, quick positioning components 2 and adjustable support connection components 3 are placed in sequence according to the preset positions determined in step S1 and installed into the truss mold, so that each component is kept stable and fixed in space to form a truss frame to be welded.

[0059] S4: Automated welding robots are used to weld the components within the truss frame, forming the steel truss as a whole; during the welding process, the dimensional consistency and positional accuracy of key parts are monitored and controlled in real time.

[0060] S5: The verticality, horizontal spacing, and four dimensional parameters of the hoisting components of the welded steel truss are tested; after passing the inspection, the steel truss is removed from the truss mold to obtain the final product.

[0061] This steel truss manufacturing method achieves high precision, automation, and standardization in the truss production process through pre-setting component positions, integrated processing of four hoisting components, automated assembly and welding, and real-time monitoring of key dimensions and finished product inspection. It not only significantly improves production efficiency and batch consistency but also ensures the structural stability, verticality, and installation accuracy of the finished product, while reducing manual operations and lowering construction safety risks.

[0062] Specifically, the automatic positioning device can employ a programmable robotic arm to grasp reinforcing bars and components and place them sequentially according to pre-set positions, thereby improving assembly accuracy and reducing human error. The truss mold can adopt a modular and adjustable design, flexibly adjusting its position according to different truss sizes and adapting to different specifications of steel mesh templates, giving the steel truss good versatility and adaptability during production.

[0063] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A steel truss, characterized in that, include: Multiple vertical reinforcing bars (1) are spaced apart in the horizontal direction and arranged parallel to each other; Multiple quick positioning components (2) are arranged at intervals along the vertical direction. Each quick positioning component (2) is straddled and fixedly connected between multiple vertical steel bars (1) along the horizontal direction, and corresponds one-to-one with the position of the grid skeleton of the steel mesh template. Each quick positioning component (2) has a snap-fit ​​part at both ends along its length direction for snap-fitting and fixing with the corresponding grid skeleton. At least two adjustable support connection components (3) are arranged at intervals along the vertical direction on the vertical steel bars (1). Each adjustable support connection component (3) is connected across multiple vertical steel bars (1). Its two ends can pass through the steel mesh template and abut against the mesh skeleton for connection with horizontal or diagonal supports, and can finely adjust the verticality of the steel mesh template. The hoisting component (4) is integrally formed and connected at both ends to the top of the adjacent vertical steel bar (1); At least two of the adjustable support connection components (3) are located at equal vertical divisions of the vertical reinforcing bars (1); The adjustable support connection assembly (3) includes a screw (31), a nut (32), an abutment plate (33), and an adapter (34); the screw (31) is horizontally straddling and fixedly connected between multiple vertical reinforcing bars (1), with its two ends passing through the steel mesh template and the abutment plate (33) in sequence; the abutment plate (33) abuts against the grid skeleton of the steel mesh template; the nut (32) rotates along the screw (31) thread and abuts against the side of the abutment plate (33) away from the grid skeleton to adjust the support length; the adapter (34) is located on the side of the abutment plate (33) away from the grid skeleton and is used to connect with the horizontal support or the diagonal support; The adapter (34) includes two adapter plates and an adapter rod arranged opposite each other along the width direction of the abutment plate (33); the two adapter plates are provided with through holes, and the adapter rod passes through the through holes and the horizontal support end or the inclined support end to connect the horizontal support or the inclined support to the adapter (34).

2. The steel truss according to claim 1, characterized in that, The quick positioning component (2) is a plate-shaped component with snap-fit ​​grooves (21) at both ends along the length direction of the quick positioning component (2) for snap-fitting with the grid skeleton at the corresponding position.

3. The steel truss according to claim 2, characterized in that, The inner width of the slot (21) is equal to the width of the corresponding mesh skeleton.

4. The steel truss according to claim 3, characterized in that, The width of the snap-fit ​​groove (21) gradually widens from the bottom of the groove to the opening.

5. The steel truss according to claim 4, characterized in that, The opposite sidewalls of the snap-fit ​​groove (21) are provided with barb structures (22) at the groove opening to prevent the mesh skeleton from coming out during the snap-fit ​​process.

6. The steel truss according to claim 1, characterized in that, A gasket is sandwiched between the nut (32) and the abutment plate (33).

7. A method for manufacturing a steel truss, characterized in that, The method for fabricating the steel truss according to any one of claims 1 to 6 comprises the following steps: S1: Determine the horizontal spacing between the multiple vertical steel bars (1), the vertical spacing of the multiple quick positioning pieces (2) and their correspondence with the grid skeleton of the steel mesh template, and clarify the preset installation positions of at least two of the adjustable support connection components (3); S2: The top horizontal steel bar used to form the hoisting component (4) is bent to form a hoisting component (4) structure that can be integrally connected with the adjacent vertical steel bar (1); S3: Using an automatic positioning device, the multiple vertical steel bars (1), the hoisting component (4), the quick positioning component (2) and the adjustable support connection component (3) are placed in sequence at the preset positions determined in step S1 and installed into the truss mold, so that each component is kept stable and fixed in the space to form a truss frame to be welded. S4: An automated welding robot is used to automatically weld the components within the truss frame, forming the steel truss as a whole; during the welding process, the dimensional consistency and positional accuracy of key parts are monitored and controlled in real time. S5: The verticality, horizontal spacing and the shape and position parameters of the hoisting component (4) of the welded steel truss are tested; after the inspection is qualified, the steel truss is taken out from the truss mold to obtain the final product.

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