Steel-concrete cable tower type steel skeleton and steel bar component and modular manufacturing method thereof

Abstract

The invention discloses a steel-concrete cable tower type steel framework, a steel bar component and a modular manufacturing method of the steel-concrete cable tower type steel framework and the steel bar component, and belongs to the technical field of modular manufacturing of steel-concrete cable tower type steel frameworks. According to the technical scheme, the device comprises a reference section located at the bottom and a matching section arranged above the reference section; the reference section comprises a bottom section steel framework section formed by splicing section steel sheet bodies, vertical main reinforcements, horizontal stirrups and a steel bar positioning plate for positioning; the matching section comprises an upper section steel framework section formed by splicing section steel sheet bodies, vertical main reinforcements and steel bar positioning plates used for positioning. The method has the beneficial effects that modular integral manufacturing of the steel-concrete cable bent tower profile steel framework and the steel bar component in a factory is achieved, by means of the method, cable bent tower sections are directly manufactured into factory modules in the factory and integrally transported to the site to be installed, a large amount of site steel bar binding workload is saved, the high-altitude operation risk is reduced, and the project construction cost is reduced; and the construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of modular manufacturing technology for steel-concrete cable tower frames, and particularly to a steel-concrete cable tower frame and reinforcing steel components and a modular manufacturing method thereof. Background Technology

[0002] A reinforced concrete cable tower is a tower-shaped structure used in cable-stayed or suspension bridges to support the main cables. Its main function is to transfer the tension of the cable stays or suspension cables to the foundation.

[0003] The conventional method for constructing reinforced concrete cable towers involves directly tying the reinforcing bars on-site at the bridge site, then installing a hydraulic climbing formwork for concrete pouring. After the concrete solidifies, the next segment's reinforcing bars are tied and concrete is poured, repeating this process until the cable tower construction is complete. However, cable towers for long-span bridges are typically over 250 meters high. This conventional construction method involves extensive high-altitude work, a long construction period, high construction risks, and high project costs, which is detrimental to the overall project progress.

[0004] How to solve the above problems is the research topic of this plan. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes a steel frame and reinforcing steel components for steel-concrete cable-stayed towers and a modular manufacturing method thereof, which solves the difficulties encountered in the modular manufacturing of steel frames and reinforcing steel components for steel-concrete cable-stayed towers in factories.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A steel frame and reinforcing steel components for a steel-concrete cable tower include a base segment at the bottom and a matching segment disposed above the base segment;

[0008] The reference segment includes a bottom steel frame segment assembled from steel sheets, vertical main bars, horizontal stirrups, and a steel bar positioning plate for positioning;

[0009] The matching segment includes an upper steel frame segment assembled from steel sheets, vertical main reinforcement bars, and a steel bar positioning plate for positioning;

[0010] The rebar positioning plate includes a main rebar positioning plate and a stirrup positioning plate.

[0011] The steel sheet body includes main steel rods and auxiliary steel.

[0012] The auxiliary steel structure includes horizontal auxiliary steel trusses and diagonal auxiliary steel structures. The main steel members are connected by horizontal auxiliary steel trusses to form a whole, and then reinforced by diagonal auxiliary steel structures.

[0013] Based on the modular manufacturing method of the steel frame and reinforcing steel components of the steel-concrete cable tower, the steel-concrete cable tower segment uses the main steel members as the main load-bearing components. The main steel members are connected to form a whole by horizontal auxiliary steel trusses, and then reinforced by diagonal auxiliary steel to form a steel frame segment of the steel-concrete cable tower with a certain rigidity, which meets the basic conditions for factory manufacturing. Main reinforcement positioning plates and stirrup positioning plates are installed on the steel frame segment for positioning and installation of vertical main reinforcement and horizontal stirrups, forming the steel frame and reinforcing steel component segment of the steel-concrete cable tower.

[0014] The steel frame and reinforcing steel components of the steel-concrete cable-stayed tower are manufactured in a modular fashion in the factory, consisting of three groups of modules:

[0015] Module 1 is a steel sheet module, in which prefabricated main steel members and auxiliary steel members are directly formed into sheets and continuously matched for production;

[0016] Module 2 is a steel frame segment module, which assembles steel plates into a bottom steel frame segment, and uses the bottom steel frame segment as the base segment to match and install the upper steel plates to form the upper steel frame segment, and uses the upper steel frame segment as the matching segment;

[0017] Module 3 is the steel frame and rebar component module. The bottom steel frame segment is installed with vertical main bars and horizontal stirrups according to the rebar positioning plate. The upper steel frame segment is based on the rebars already installed in the bottom reference segment to complete the matching installation of the vertical main bars.

[0018] The manufacturing steps of the steel sheet module are as follows:

[0019] The main steel members are arranged according to dimensions on the horizontal jig, and the upper and lower openings are controlled. Taking the first steel plate as the reference segment, the next matching segment is manufactured by installing web plate connecting plates and wing plate connecting plates. Each set of connecting plates has 4 process pins installed on the upper and lower segments for precise positioning between the members. Each set of connecting plates has 4 process bolts installed on the upper and lower segments for locking the members. Then, the auxiliary steel between the members is installed to complete the matching manufacturing of the steel plates.

[0020] The manufacturing steps of the steel frame segment module are as follows:

[0021] On the vertical assembly frame, the first bottom steel frame segment is used as the reference segment, and the upper steel frame segment is matched and installed in units of steel plates. The main steel members of the bottom steel frame segment and the upper steel frame segment are connected by web connecting plates, process pins and process bolts, restoring them to the plate matching manufacturing state.

[0022] After the data measurement is qualified, the upper matching segment pieces are connected to form a steel frame matching segment. Matching parts are installed at the position of the main steel wing plate as positioning reference components for bridge installation.

[0023] The manufacturing steps for the steel frame and reinforcing bar components are as follows:

[0024] After the first bottom steel frame segment is completed, all vertical main reinforcement bars are installed in place with the hole diameter of the reinforcement positioning plate as the reference. When matching and assembling the steel frame segment modules, the vertical main reinforcement bars of the upper matching segment are installed with the vertical main reinforcement bars of the bottom steel frame segment as the reference. At the same time, the main reinforcement bars of the upper steel frame segment and the bottom steel frame segment are connected by main reinforcement sleeves of appropriate proportion to check the matching degree of the reinforcement bars. After the main reinforcement bars of the upper steel frame segment are matched, they are hoisted to the ground position for the installation of horizontal stirrups to form the steel frame and reinforcement component modules.

[0025] By following the above steps in a cyclical and matching manufacturing process, the steel frame and steel reinforcement components of the steel-concrete cable tower can be modularly manufactured in the factory. This allows most of the manufacturing and installation work of the cable tower to be completed in the factory. At the same time, through precise modular manufacturing measures, the modules can be quickly and accurately connected when connected at the bridge site, thereby greatly shortening the overall construction cycle of the steel-concrete cable tower and reducing the overall construction cost of the project.

[0026] This invention aims to solve various problems encountered in the modular manufacturing of steel frame and reinforcing steel components for reinforced concrete cable towers in factories: The steel-concrete cable tower uses vertical steel as the main load-bearing frame of the tower. By connecting the auxiliary steel sections, the tower forms a stable rigid structure, thereby moving the erection of the tower sections and the binding of the reinforcing steel to be completed in the factory. The modular manufacturing of the steel frame and reinforcing steel components of the cable tower is achieved through the optimization of the connection form between the steel sections and the continuous matching and precise manufacturing.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: This solution realizes the modular and integral manufacturing of the steel frame and steel reinforcement components of the steel-concrete cable tower in the factory. Using this method, the cable tower segments are directly manufactured as modules in the factory and transported to the site for installation as a whole, which saves a lot of on-site steel reinforcement binding work, reduces the risk of high-altitude operations, lowers project construction costs, and improves construction efficiency. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0029] Figure 1 This is a schematic diagram of the steel frame and reinforcing steel components of a steel-concrete cable tower according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the main steel structure of the steel frame segment according to an embodiment of the present invention.

[0031] Figure 3 for Figure 2 View I: Schematic diagram of the connection between the main steel member and the auxiliary steel member.

[0032] Figure 4 for Figure 3 A cross-sectional view showing the connection between the AA-type main steel member and the auxiliary steel member.

[0033] Figure 5 This is a flowchart illustrating the modular manufacturing process of steel-concrete cable tower segments in an embodiment of the present invention.

[0034] Figure 6 This is a schematic diagram illustrating the continuous and precise matching of steel sheet bodies according to an embodiment of the present invention.

[0035] Figure 7 for Figure 6 View II: Schematic diagram of steel sheet matching.

[0036] Figure 8 This is a schematic diagram illustrating the precise matching and connection of the hole groups in the steel frame segments according to an embodiment of the present invention.

[0037] Figure 9 for Figure 8 View III: Schematic diagram of steel stirrup segment matching.

[0038] Figure 10 This is a schematic diagram illustrating the positioning, installation, and precise matching of reinforcing bars in an embodiment of the present invention.

[0039] The attached diagrams are labeled as follows: 100, reference segment; 200, matching segment; 3, main reinforcement positioning plate; 4, stirrup positioning plate; 1, main steel member; 2, auxiliary steel; 201, horizontal auxiliary steel truss; 202, diagonal auxiliary steel; 5, horizontal frame; 11, reference segment body; 6, web connecting plate; 7, wing connecting plate; 12, matching segment body; 8, process pin; 9, process bolt; 13, matching part; 14, main reinforcement sleeve. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0041] Example 1

[0042] The present invention provides a steel frame and reinforcing steel components for a steel-concrete cable tower, including a reference segment 100 located at the bottom and a matching segment 200 disposed above the reference segment 100;

[0043] The reference segment 100 includes a bottom steel frame segment assembled from steel sections, vertical main bars, horizontal stirrups, and a steel bar positioning plate for positioning;

[0044] Matching segment 200 includes an upper steel frame segment assembled from steel sections, vertical main reinforcement bars, and a steel bar positioning plate for positioning;

[0045] The reinforcement positioning plate includes the main reinforcement positioning plate 3 and the stirrup positioning plate 4.

[0046] The steel sheet body includes main steel members 1 and auxiliary steel members 2.

[0047] The auxiliary steel 2 includes horizontal auxiliary steel truss 201 and diagonal auxiliary steel 202. The main steel member 1 is connected by the horizontal auxiliary steel truss 201 to form a whole, and then reinforced by the diagonal auxiliary steel.

[0048] Based on the modular manufacturing method of steel-concrete cable-stayed tower frame and reinforcing steel components, the steel-concrete cable-stayed tower segment uses the main steel member 1 as the main load-bearing body. The main steel member 1 is connected to form a whole by horizontal auxiliary steel truss panels 201, and then reinforced by diagonal auxiliary steel sections 202, forming a steel-concrete cable-stayed tower frame segment with a certain rigidity, meeting the basic conditions for factory manufacturing. Main reinforcement positioning plates 3 and stirrup positioning plates 4 are installed on the steel frame segment for positioning and installing vertical main reinforcement and horizontal stirrups, forming the steel-concrete cable-stayed tower frame and reinforcing steel component segment. Figure 1 , two As shown in sections three and four.

[0049] The steel frame and reinforcing steel components of the steel-concrete cable-stayed tower are manufactured in a modular fashion in the factory, consisting of three groups of modules:

[0050] Module 1 is a steel sheet module, in which prefabricated main steel members 1 and auxiliary steel members 2 are directly formed into sheets and continuously matched for production;

[0051] Module 2 is a steel frame segment module, which assembles the steel plates into a bottom steel frame segment, and uses the bottom steel frame segment as the base segment 100 to match and install the upper steel plates to form the upper steel frame segment, and uses the upper steel frame segment as the matching segment 200.

[0052] Module three is the steel frame and reinforcing bar component module. The bottom steel frame segment installs vertical main bars and horizontal stirrups according to the reinforcing bar positioning plate. The upper steel frame segment uses the already installed reinforcing bars in the bottom reference segment 100 as a reference to complete the matching installation of the vertical main bars. For example... Figure 5 As shown.

[0053] The manufacturing steps for the steel sheet module are as follows:

[0054] On the horizontal jig 5, the main steel members 1 are arranged according to dimensions. The upper and lower openings are controlled. Using the first steel section as the reference segment 11, the next matching segment 12 is manufactured by installing the web connecting plate 6 and the wing connecting plate 7. Each set of connecting plates has four process pins 8 installed on the upper and lower segments for precise positioning between the members. Each set of connecting plates also has four process bolts 9 installed on the upper and lower segments for locking the members. Then, auxiliary steel members are installed between the members, thus completing the matching manufacturing of the steel sections. Figure 6 , seven As shown.

[0055] The manufacturing steps for the steel frame segment module are as follows:

[0056] On the vertical assembly frame, the first bottom steel frame segment is used as the reference segment 100. The upper steel frame segment is matched and installed in units of steel plates. The main steel rods 1 of the bottom steel frame segment and the upper steel frame segment are connected by web connecting plate 6, process pin 8, and process bolt 9, restoring the plate matching manufacturing state.

[0057] After the data measurement is qualified, the upper matching segment pieces 12 are connected to form the steel frame matching segment 200. Matching parts 13 are installed at the position of the main steel wing plate as positioning reference components for bridge installation. For example... Figure 8 , Nine As shown.

[0058] The manufacturing steps for the steel frame and reinforcing steel component modules are as follows:

[0059] After the first bottom steel frame segment is completed, all vertical main reinforcement bars are installed in place based on the hole diameter of the reinforcement positioning plate. During the matching and assembly of the steel frame segment modules, the vertical main reinforcement bars of the upper matching segment 200 are installed based on the vertical main reinforcement bars of the bottom steel frame segment. Simultaneously, the main reinforcement bars of the upper and bottom steel frame segments are connected using appropriately proportioned main reinforcement sleeves 14 to verify the matching degree of the reinforcement bars. After the main reinforcement bars of the upper steel frame segment are matched, they are hoisted to the ground position for the installation of horizontal stirrups, forming the steel frame and reinforcement component modules. Figure 10 As shown.

[0060] By following the above steps in a cyclical and matching manufacturing process, the steel frame and steel reinforcement components of the steel-concrete cable tower can be modularly manufactured in the factory. This allows most of the manufacturing and installation work of the cable tower to be completed in the factory. At the same time, through precise modular manufacturing measures, the modules can be quickly and accurately connected when connected at the bridge site, thereby greatly shortening the overall construction cycle of the steel-concrete cable tower and reducing the overall construction cost of the project.

[0061] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A steel frame and reinforcing steel components for a steel-concrete cable-stayed tower, characterized in that: It includes a reference segment (100) located at the bottom and a matching segment (200) disposed above the reference segment (100); The reference segment (100) includes a bottom steel frame segment assembled from steel sheets, vertical main bars, horizontal stirrups, and a steel bar positioning plate for positioning; The matching segment (200) includes an upper steel frame segment assembled from steel sheets, vertical main reinforcement bars, and a steel bar positioning plate for positioning; The reinforcement positioning plate includes a main reinforcement positioning plate (3) and a stirrup positioning plate (4).

2. The steel frame and reinforcing steel components of the steel-concrete cable tower according to claim 1, characterized in that, The steel sheet body includes main steel rods (1) and auxiliary steel (2).

3. The steel frame and reinforcing steel components of the steel-concrete cable tower according to claim 2, characterized in that, The auxiliary steel (2) includes horizontal auxiliary steel truss (201) and diagonal auxiliary steel (202). The main steel members (1) are connected to form a whole by the horizontal auxiliary steel truss (201) and then reinforced by the diagonal auxiliary steel.

4. A modular manufacturing method for the steel frame and reinforcing steel components of a steel-concrete cable-stayed tower according to any one of claims 1-3, characterized in that, The steel-concrete cable tower segment uses the main steel member (1) as the main load-bearing body. The main steel member (1) is connected to form an integral whole by horizontal auxiliary steel truss (201). Then, it is reinforced by diagonal auxiliary steel (202) to form a steel-concrete cable tower frame segment. The main reinforcement positioning plate (3) and stirrup positioning plate (4) are installed on the steel frame segment for positioning and installation of vertical main reinforcement and horizontal stirrup, forming a steel-concrete cable tower frame and steel reinforcement component segment.

5. The modular manufacturing method for the steel frame and reinforcing steel components of the steel-concrete cable-stayed tower according to claim 4, characterized in that, The steel frame and reinforcing steel components of the steel-concrete cable-stayed tower are manufactured in a modular fashion in the factory, consisting of three groups of modules: Module 1 is a steel sheet module, in which prefabricated main steel rods (1) and auxiliary steel (2) are directly formed into sheets and continuously matched for production; Module 2 is a steel frame segment module, which assembles the steel plates into a bottom steel frame segment, and uses the bottom steel frame segment as the base segment (100) to match and install the upper steel plates to form an upper steel frame segment, and uses the upper steel frame segment as the matching segment (200). Module 3 is a steel frame and rebar component module. The bottom steel frame segment is installed with vertical main bars and horizontal stirrups according to the rebar positioning plate. The upper steel frame segment is based on the rebars installed in the bottom reference segment (100) to complete the matching installation of the vertical main bars.

6. The modular manufacturing method for the steel frame and reinforcing steel components of the steel-concrete cable-stayed tower according to claim 5, characterized in that, The manufacturing steps of the steel sheet module are as follows: The main steel members (1) are arranged according to the dimensions on the horizontal jig (5). The upper and lower openings are controlled. The first steel plate is used as the reference segment plate (11). The next matching segment plate (12) is manufactured by installing the web plate connecting plate (6) and the wing plate connecting plate (7). Four process pins (8) are installed on the upper and lower segments of each connecting plate for precise positioning between the members. Four process bolts (9) are installed on the upper and lower segments of each connecting plate for locking the members. Then, the auxiliary steel between the members is installed to complete the matching manufacturing of the steel plate.

7. The modular manufacturing method for the steel frame and reinforcing steel components of a steel-concrete cable-stayed tower according to claim 6, characterized in that, The manufacturing steps of the steel frame segment module are as follows: On the vertical assembly frame, the first bottom steel frame segment is used as the reference segment (100), and the upper steel frame segment is matched and installed in units of steel plates. The main steel rods (1) of the bottom steel frame segment and the upper steel frame segment are connected by the web plate connecting plate (6), process pin (8), and process bolt (9) to restore the plate matching manufacturing state. After the data measurement is qualified, the upper matching segment piece (12) is connected to form a steel frame matching segment (200), and the matching part (13) is installed at the position of the main steel wing plate as a positioning reference component for bridge installation.

8. The modular manufacturing method for the steel frame and reinforcing steel components of a steel-concrete cable-stayed tower according to claim 7, characterized in that, The manufacturing steps for the steel frame and reinforcing bar components are as follows: After the first bottom steel frame segment is completed, all vertical main bars are installed in place based on the hole diameter of the rebar positioning plate. When the steel frame segment modules are matched and assembled, the vertical main bars of the upper matching segment (200) are installed based on the vertical main bars of the bottom steel frame segment. At the same time, the main bars of the upper steel frame segment and the bottom steel frame segment are connected through the main bar sleeve (14) to check the matching degree of the rebar. After the matching of the main bars of the upper steel frame segment is completed, it is hoisted to the ground position for the installation of horizontal stirrups to form the steel frame and rebar component modules.

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