Roof steel truss splicing construction structure

Abstract

The utility model discloses a roof steel truss assembly construction structure which comprises an installation platform, a lifting support and a steel truss body, the installation platform is provided with the lifting support, the lifting support is provided with a hydraulic lifter, and the hydraulic lifter is connected with the steel truss body through a steel strand body and a lifting appliance; the steel truss body comprises an upper-layer frame and a lower-layer frame, the lower-layer frame comprises jig frames, longitudinal main beams and connection secondary beams are arranged between the jig frames, and vertical web members connected with the upper-layer frame are arranged at the intersection points of the longitudinal main beams and the connection secondary beams. Temporary supporting rods matched with the lower-layer frame are arranged on the side walls of the vertical web members, and diagonal web members are arranged between the upper-layer frame and the lower-layer frame. The roof steel truss splicing construction structure is ingenious in design and practical in function, and effectively solves the problems that in traditional ground splicing, horizontal steel truss splicing is adopted, components need to be turned over, the cost of construction machinery is high, and the safety risk is large.

Description

A roof steel truss assembly construction structure Technical Field

[0001] This utility model relates to the field of steel truss construction structures, and in particular to a roof steel truss assembly construction structure. Background Technology

[0002] Currently, large-span steel structures in the form of space frames, space shells, and trusses are the most widely used. Key construction technologies for these large-span steel structures include component assembly and high-altitude hoisting. Due to the high cost and risk of high-altitude assembly, ground assembly is typically chosen for steel truss components. Traditional ground assembly uses horizontal steel trusses, requiring measures to prevent welding deformation. After welding one side, the components need to be flipped, increasing both the cost of construction machinery and safety risks. Therefore, developing a roof steel truss assembly construction structure has become a pressing problem for those skilled in the art. Summary of the Invention

[0003] The purpose of this utility model is to provide a roof steel truss assembly construction structure that solves the problems of traditional ground assembly of horizontal steel trusses requiring component flipping, high construction machinery costs, and high safety risks.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a roof steel truss assembly construction structure, including an installation platform, a lifting support, and a steel truss body. The installation platform is equipped with a lifting support, and a hydraulic lifting device is installed on the lifting support. The hydraulic lifting device is connected to the steel truss body through a steel strand body and a lifting device. The steel truss body includes an upper frame and a lower frame. The lower frame includes a formwork frame. Longitudinal main beams and connecting secondary beams are arranged between the formwork frames. Vertical web members connected to the upper frame are arranged at the intersection of the longitudinal main beams and the connecting secondary beams. Temporary struts that cooperate with the lower frame are arranged on the side walls of the vertical web members. Diagonal web members are arranged between the upper frame and the lower frame.

[0006] Furthermore, the upper and lower frames of the steel truss body can be welded to the installation platform; the upper frame of the steel truss body can be welded to the installation platform via diagonal web members.

[0007] Furthermore, the top end of the vertical web member is welded to the upper frame of the steel truss body; the bottom end of the vertical web member is welded to the lower frame of the steel truss body.

[0008] Furthermore, the lifting support includes a steel strand support, a triangular support, and an external tie rod. The lower end of the triangular support is connected to the steel-concrete column on the installation platform, the upper end of the triangular support is connected to the steel strand support, the upper end of the external tie rod is connected to the steel strand support, and the lower end of the external tie rod is connected to the frame column on the installation platform through an embedded part.

[0009] Furthermore, the hydraulic lifter is fixedly mounted at the front end of the steel strand support.

[0010] Furthermore, the upper frame of the steel truss body is provided with lifting points that cooperate with the lifting device.

[0011] Furthermore, the upper frame and the lower frame of the steel truss body have the same structure.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] This utility model's roof steel truss assembly construction structure adopts a vertical assembly method, which is highly efficient and changes the traditional horizontal assembly method. It realizes the vertical placement of components, and all welding operations can be completed without flipping the steel truss body, reducing the number of procedures and improving the safety of the operation. Compared with the existing vertical assembly jig device, this utility model uses vertical web members and diagonal web members on both sides to assemble the steel truss, which not only allows for rapid installation and disassembly, but also reduces construction costs while ensuring the stability of the steel truss. The hydraulic lifting equipment of this utility model's roof steel truss assembly construction structure is compact and lightweight. The lifting support is in the form of a triangular support, with one end fixed to the steel-concrete column and the other end rigidly connected to the frame column through pre-embedded parts, which is stable and convenient for transportation and installation. This utility model's roof steel truss assembly construction structure directly lifts the entire steel truss body, reducing the amount of high-altitude work and the absolute construction time of the hydraulic overall lifting operation, which can effectively guarantee the installation cycle. The construction of temporary facilities for this utility model's roof steel truss assembly construction structure is small, which facilitates cost control of project construction. In summary, the roof steel truss assembly construction structure of this utility model is ingeniously designed and practically functional. It effectively solves the problems of traditional ground assembly of horizontal steel trusses, which requires flipping components, resulting in high construction machinery costs and significant safety risks. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] Figure 1 shows the lifting process of the roof steel truss assembly construction structure of this utility model;

[0016] Figure 2 shows the completed construction structure of the roof steel truss assembly of this utility model.

[0017] Figure 3 is a schematic diagram of the steel truss main structure;

[0018] Figure 4 is a schematic diagram of the lifting support structure.

[0019] Explanation of reference numerals in the attached drawings: 1. Vertical web member; 2. Temporary support; 3. Connecting secondary beam; 4. Longitudinal main beam; 5. Steel strand support; 6. Triangular support; 7. External tie rod; 8. Embedded part; 9. Steel truss body; 10. Steel strand body; 11. Hydraulic lifter; 12. Lifting support; 13. Lifting tool; 14. Diagonal web member; 15. Frame. Detailed Implementation

[0020] As shown in Figures 1 to 4, a roof steel truss assembly construction structure includes an installation platform, a lifting support 12, and a steel truss body 9. The installation platform is provided with a lifting support 12, and a hydraulic lifter 11 is provided on the lifting support 12. The hydraulic lifter 11 is connected to the steel truss body 9 through a steel strand body 10 and a lifting device 13.

[0021] Specifically, the steel truss body 9 includes an upper frame and a lower frame, and the upper and lower frames of the steel truss body 9 have the same structure. The lower frame includes a formwork 15, with longitudinal main beams 4 and connecting secondary beams 3 arranged between the formwork 15. Vertical web members 1 that connect to the upper frame are arranged at the intersection of the longitudinal main beams 4 and the connecting secondary beams 3. Temporary support members 2 that cooperate with the lower frame are arranged on the side wall of the vertical web members 1. Diagonal web members 14 are arranged between the upper and lower frames.

[0022] After the lifting is completed, the upper and lower frames of the steel truss body 9 can be welded to the installation platform; the upper frame of the steel truss body 9 can be welded to the installation platform via diagonal web members 14. The top end of the vertical web member 1 is welded to the upper frame of the steel truss body 9; the bottom end of the vertical web member 1 is welded to the lower frame of the steel truss body 9. At this time, the temporary support rod 2 can be removed.

[0023] The lifting support 12 includes a steel strand support 5, a triangular support 6, and an external tie rod 7. The lower end of the triangular support 6 is connected to a steel-concrete column on the installation platform, and the upper end of the triangular support 6 is connected to the steel strand support 5. The upper end of the external tie rod 7 is connected to the steel strand support 5, and the lower end of the external tie rod 7 is connected to a frame column on the installation platform via an embedded part 8. The hydraulic lifter 11 is fixedly installed at the front end of the steel strand support 5. The upper frame of the steel truss body 9 is provided with lifting points that cooperate with the lifting device 13.

[0024] The construction process of this utility model is as follows: The technical solution proposed by this utility model is to use the vertical web members 1 of the lower frame of the steel truss body 9 and the temporary support members 2 on both sides to support the upper frame of the steel truss body 9, so that it can be assembled vertically on the ground. Then, the hydraulic lifting device 11 installed on the lifting bracket 12 is connected to the lifting points at both ends of the steel truss body 9 to lift the steel truss body 9 to the roof as a whole. Then, the joint welding is carried out. Then, the temporary support members 2 are removed and the missing diagonal web members 14 are added.

[0025] The specific implementation of the vertical assembly method in this scheme is as follows: First, the jig 15 is installed in the original position of the truss to be assembled and the longitudinal main beam 4 and the connecting secondary beam 3 are assembled. At the top of the junction of the connecting secondary beam 3 and the longitudinal main beam 4, the vertical web member 1 is installed, and temporary support members 2 are installed on both sides of the vertical web member 1. One end of the temporary support member 2 is connected to the longitudinal main beam 4, and the other end is fixedly connected to the vertical web member 1 to ensure the stability of the steel truss body 9 and the verticality of the steel truss body 9. Then, the upper frame of the steel truss body 9 is installed to fill the gaps with diagonal web members 14, longitudinal main beam 4, and connecting secondary beam 3.

[0026] This construction structure can solve the cost and risk problems of traditional horizontal steel truss assembly. At the same time, the simple device formed by the vertical web members 1 and the temporary support members 2 on both sides solves the problems of the difficulty in quick installation and disassembly of the vertical assembly frame device and the low construction efficiency.

[0027] The lifting support 12 is triangular in shape, comprising a triangular bracket 6, an outer tie rod 7, and a steel strand support 5. The lower part of the triangular bracket 6 is fixedly connected to the steel-concrete composite column. One end of the outer tie rod 7 is welded to the triangular bracket 6, and the other end is rigidly connected to the frame column via an embedded part 8. A steel strand support 5 for supporting the steel strands is welded above the triangular bracket 6. A hydraulic lifter 11 is installed at the front end of the triangular bracket 6 to ensure the stability and firmness of the lifting point during the overall lifting process, and to improve the accuracy and stability of the lifting device.

[0028] After the steel truss body 9 is assembled, it is lifted using lifting points pre-arranged on the top surface of the steel-concrete column. The lower lifting points are connected to the structure being lifted via lifting devices 13 at both ends of the steel truss body 9. Then, it is lifted as a whole through dedicated lifting anchors, the steel strand body 10, and the hydraulic lifting device 11 at the upper lifting point, minimizing the amount of high-altitude work. During the lifting process of the steel truss body 9, the control system monitors and controls the position of the lifting points in real time. Through the coordinated work of the hydraulic lifting system and the control system, the accuracy and stability of the lifting of the steel truss body 9 are ensured, avoiding deformation or instability of the steel truss body 9 due to lifting point deviations.

[0029] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A roof steel truss assembly construction structure, characterized in that: The system includes an installation platform, a lifting bracket (12), and a steel truss body (9). The installation platform is provided with a lifting bracket (12), and a hydraulic lifter (11) is provided on the lifting bracket (12). The hydraulic lifter (11) is connected to the steel truss body (9) through a steel strand body (10) and a lifting device (13). The steel truss body (9) includes an upper frame and a lower frame. The lower frame includes a frame frame (15). A longitudinal main beam (4) and a connecting secondary beam (3) are provided between the frame frames (15). A vertical web member (1) connected to the upper frame is provided at the intersection of the longitudinal main beam (4) and the connecting secondary beam (3). A temporary support (2) that cooperates with the lower frame is provided on the side wall of the vertical web member (1). An oblique web member (14) is provided between the upper frame and the lower frame.

2. The roof steel truss assembly construction structure according to claim 1, characterized in that: The upper and lower frames of the steel truss body (9) can be welded to the installation platform; the upper frame of the steel truss body (9) can be welded to the installation platform via diagonal braces (14).

3. The roof steel truss assembly construction structure according to claim 1, characterized in that: The top end of the vertical web member (1) is welded to the upper frame of the steel truss body (9); the bottom end of the vertical web member (1) is welded to the lower frame of the steel truss body (9).

4. The roof steel truss assembly construction structure according to claim 1, characterized in that: The lifting support (12) includes a steel strand support (5), a triangular support (6) and an external tie rod (7). The lower end of the triangular support (6) is connected to the steel-concrete column on the installation platform, the upper end of the triangular support (6) is connected to the steel strand support (5), the upper end of the external tie rod (7) is connected to the steel strand support (5), and the lower end of the external tie rod (7) is connected to the frame column on the installation platform through an embedded part (8).

5. The roof steel truss assembly construction structure according to claim 4, characterized in that: The hydraulic lifter (11) is fixedly installed at the front end of the steel strand support (5).

6. The roof steel truss assembly construction structure according to claim 1, characterized in that: The upper frame of the steel truss body (9) is provided with lifting points that cooperate with the lifting device (13).

7. The roof steel truss assembly construction structure according to claim 1, characterized in that: The upper frame and the lower frame of the steel truss body (9) have the same structure.

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