Large-span fabricated cable truss structure for channel covering

Abstract

The application discloses a large-span fabricated cable-truss structure for channel covering, wherein the upper chord section steel (2) is arranged above two lower chord steel cables (3), and a horizontal steel web member (5) is arranged between the two lower chord steel cables (3); a single circular-arc-shaped upper chord section steel (2) is arranged between the two lower chord steel cables (3) and a herringbone-shaped steel web member (4) is arranged between the single circular-arc-shaped upper chord section steel (2) and the two lower chord steel cables (3); and the upper chord section steel (2), the lower chord steel cables (3), the herringbone-shaped steel web member (4) and the horizontal steel web member (5) form a triangle, which overcomes the problems of large channel span, difficult support and difficult installation of a steel structure platform arranged in a water conveying channel in the prior art, and has the advantages that the upper chord section steel, the herringbone-shaped steel web member and the horizontal steel web member form a triangle, a stable self-balancing system is achieved, and the overall stress is reasonable.

Description

Technical Field

[0001] This invention relates to the technical field of water conveyance channels, and more specifically to a large-span prefabricated cable truss structure for channel covering. Background Technology

[0002] Existing water conveyance channels generate a large amount of evaporation during the water conveyance process, resulting in water waste; and the water quality deteriorates due to pollution from particulate matter such as dust during contact with the atmosphere.

[0003] For existing water conveyance projects both domestically and internationally, it is advisable to construct steel structure platforms above the channels. Based on these platforms, various functions can be implemented, such as water quality management within the channels and the development of renewable energy sources.

[0004] However, setting up a platform in an existing channel with a long-term water flow presents the following problems: Currently, large-scale water conveyance projects have been built, and the water conveyance channels have a large span in the width direction, so conventional structures cannot meet the requirements of the project.

[0005] Meanwhile, the installation of steel structure platforms within water conveyance channels faces challenges such as large channel spans, difficulty in providing support, and challenges in installation.

[0006] Therefore, a structure is urgently needed to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology and to propose a large-span prefabricated cable truss structure for channel covering.

[0008] The objective of this invention is achieved through the following technical solution: a large-span prefabricated cable truss structure for channel covering, which is set above the channel and includes a transverse structure set above the channel and a longitudinal structure fixed on both sides of the channel bank slope, wherein the transverse structure is located between the two longitudinal structures.

[0009] The transverse structure includes an upper chord steel section, a lower chord steel cable, a herringbone steel web member, and a horizontal steel web member;

[0010] The upper chord steel section is located above the two lower chord steel cables, and a horizontal steel web member is provided between the two lower chord steel cables;

[0011] A herringbone-shaped steel web member is provided between the single arc-shaped upper chord steel section and the two lower chord steel cables. The upper chord steel section, the lower chord steel cables, the herringbone-shaped steel web member and the horizontal steel web member form a triangle.

[0012] In the above technical solution: the longitudinal structure includes columns and steel beams; several columns are installed at equal intervals on both sides of the channel bank slope, and a steel beam is installed between two adjacent columns on the same side.

[0013] In the above technical solution: the lower chord steel cable is made of high-strength steel bars, steel strands or steel wire ropes, and each lower chord steel cable is installed between the columns set on both sides.

[0014] In the above technical solution: the upper chord steel is made of steel pipe, and the upper chord steel is installed between the columns set on both sides.

[0015] In the above technical solution: there are several herringbone steel web members and horizontal steel web members. Each herringbone steel web member is installed between the upper chord steel and the two lower chord steel cables, and each horizontal steel web member is installed between the two lower chord steel cables.

[0016] In the above technical solution: the shape formed by the two lower chord steel cables is a shuttle shape.

[0017] In the above technical solution: the length of the upper chord steel and the lower chord steel cable is 30 meters to 80 meters.

[0018] The present invention has the following advantages: 1. The upper chord steel and lower chord steel cables in the present invention are made of steel structure and the length is between 30 meters and 80 meters, which solves the problem of steel structure platforms facing large channel spans.

[0019] 2. The upper chord steel, herringbone steel web members and horizontal steel web members in this invention form a triangle, achieving a stable self-balancing system with reasonable overall stress distribution.

[0020] 3. All components of this invention can be manufactured in the factory, making overall manufacturing convenient. Furthermore, due to the ease of transportation of each component, it can be assembled on-site, giving it good market value and making it worthy of promotion. Attached Figure Description

[0021] Figure 1 A schematic diagram of the existing channel layout structure.

[0022] Figure 2 This is a top view of the present invention.

[0023] Figure 3 This is a cross-sectional view of the present invention.

[0024] Figure 4 This is a schematic diagram of the triangular balance structure in this invention.

[0025] In the diagram: a) lateral structure, 1) column, 2) upper chord steel section, 3) lower chord steel cable, 4) herringbone steel web member, 5) horizontal steel web member, 6) steel beam, 7) existing ground, A) road, B) canal, C) canal bottom, D) canal bottom. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Reference Figure 1-4 As shown: A large-span prefabricated cable truss structure for channel covering is set above the channel and includes a transverse structure a set above the channel and a longitudinal structure b fixed on both sides of the channel bank slope. The transverse structure a is located between the two longitudinal structures b.

[0028] The transverse structure a includes an upper chord steel section 2, a lower chord steel cable 3, a herringbone steel web member 4, and a horizontal steel web member 5;

[0029] The upper chord steel 2 is located above the two lower chord steel cables 3, and a horizontal steel web member 5 is provided between the two lower chord steel cables 3;

[0030] A herringbone-shaped steel web member 4 is provided between the single arc-shaped upper chord steel section 2 and the two lower chord steel cables 3. The upper chord steel section 2, the lower chord steel cables 3, the herringbone-shaped steel web member 4 and the horizontal steel web member 5 form a triangle.

[0031] Top chord steel section 2: Top chord steel section 2 is made of steel pipe. Purlins can be arranged above top chord steel section 2, and photovoltaic panels can be arranged above purlins; Bottom chord steel cable 3: Bottom chord steel cable 3 is made of steel pipe, and its main function is to bear the tensile force generated by the upper load; Herringbone steel web member 4: Herringbone steel web member 4 is used to connect top chord steel section 2 and bottom chord steel cable 3; Horizontal steel web member 5: Horizontal steel web member 5 is used to connect two parallel top chord steel sections 2;

[0032] The aforementioned transverse structure a and longitudinal structure b constitute a spatial structure. The upper chord steel section 2 of the transverse structure a bears axial compression and bending moment, while the lower chord steel cable 3 bears axial tension. The compression of the upper chord steel section 2 and the tension of the lower chord steel cable 3 uniformly distribute the forces within the transverse structure a across the upper chord steel section 2 and the lower chord steel cable 3. This means that the upper chord steel section 2 and the lower chord steel cable 3 complement each other, and the bending and tension components work together, creating a self-balancing system with reasonable stress distribution, convenient manufacturing and transportation, and on-site assembly capabilities. It is a platform structure with significant application value.

[0033] Compared to conventional steel truss structures, this cable truss structure is a combination of rigidity and flexibility. The upper chord steel section 2 has high rigidity and can withstand vertical loads such as roof panels or photovoltaic panels, while the lower chord steel cable 3 is relatively flexible, providing elastic support to the upper chord steel section 2 through the herringbone steel web members 4. This ensures a certain level of structural rigidity while saving on steel consumption.

[0034] The longitudinal structure b includes columns 1 and steel beams 6; several columns 1 are installed at equal intervals on both sides of the channel bank slope, and steel beams 6 are installed between two adjacent columns 1 on the same side.

[0035] Steel beam 6 is made of steel beam or steel truss: Steel beam 6 is used to connect the longitudinal columns 1. Column 1 is made of steel structure or reinforced concrete structure, and steel beam 6 is usually made of steel profiles. The conventional spacing between adjacent columns 1 is between 6 meters and 9 meters. This spacing is obtained after a lot of calculations. The spacing between columns 1 is the most economical spacing. The arrangement of the upper chord steel profile 2 and the lower chord steel cable 3, as well as the arrangement of columns 1 and steel beam 6, are all optimal spacing, which can meet the project requirements and reduce the project cost.

[0036] The column 1 and the steel beam 6 are connected by a hinge, and the column 1 is fixed on a reinforced concrete independent foundation or pile foundation.

[0037] The lower chord steel cable 3 is made of high-strength steel bars, steel strands or steel wire ropes, and each lower chord steel cable 3 is installed between the columns 1 set on both sides.

[0038] The lower chord steel cable 3 is made of high-strength steel bars, steel strands or steel wire ropes. The two lower chord steel cables 3 arranged symmetrically form a shuttle shape. The lower chord steel cables 3 located at both ends on the bank slope are fixed to the column 1.

[0039] The lower chord steel cable 3 can also be made into an arc shape or other curved structure. The arc shape or other curved structure has an aesthetically pleasing overall appearance, is easy to install, and has the advantages of being lightweight and saving steel compared to steel beams or other solid web steel beams. It can also give full play to the advantages of material strength, making it a platform structure with good application value.

[0040] The upper chord steel section 2 is made of steel pipe and is installed between the columns 1 set on both sides.

[0041] The upper chord steel 2 is made of steel pipe. The upper chord steel 2 made of steel pipe has a certain rigidity. When it is bent into an arc shape, it is more beautiful. At the same time, because of the guaranteed rigidity, when it is used in conjunction with the lower chord steel 3 and the herringbone steel web 4 set below, photovoltaic panels can be placed on it. The photovoltaic panels absorb solar energy and provide power generation.

[0042] There are several herringbone steel web members 4 and horizontal steel web members 5. Each herringbone steel web member 4 is installed between the upper chord steel 2 and the two lower chord steel cables 3, and each horizontal steel web member 5 is installed between the two lower chord steel cables 3.

[0043] Several of the aforementioned herringbone steel web members 4 are installed between the upper chord steel section 2 and the lower chord steel cable 3, increasing the strength of the transverse structure a and contributing to overall stability. Each of the aforementioned horizontal steel web members 5 is installed between two of the aforementioned upper chord steel sections 2, increasing the strength of the transverse structure a and contributing to overall stability.

[0044] The two lower chord steel cables 3 form a shuttle shape, which is more aesthetically pleasing. The upper chord steel 2 and the lower chord steel cables 3 are between 30 and 80 meters in length. The upper chord steel 2 is also between 30 and 80 meters in length. This length meets the requirements for conventional channel widths, and the platform constructed between the upper chord steel 2 and the lower chord steel cables 3 satisfies the requirements for large-span water conveyance within the channel.

[0045] The parts not described in detail above are all existing technologies.

Claims

1. A large-span fabricated cable-truss structure for covering a channel, which is arranged above the channel and further comprises transverse structures (a) arranged above the channel and longitudinal structures (b) fixed on both sides of the bank slope of the channel, the transverse structures (a) being located between the longitudinal structures (b) on both sides; characterized in that: the transverse structure (a) comprises upper chord section steel (2), lower chord steel cable (3), herringbone steel web member (4) and horizontal steel web member (5); the upper chord section steel (2) is located above two lower chord steel cables (3), and horizontal steel web members (5) are arranged between the two lower chord steel cables (3); a single arc-shaped upper chord section steel (2) is provided between two lower chord steel cables (3), and a herringbone steel web member (4) is arranged between the upper chord section steel (2) and the two lower chord steel cables (3), and the upper chord section steel (2), the lower chord steel cable (3), the herringbone steel web member (4) and the horizontal steel web member (5) form a triangle; the herringbone steel web member (4) and the horizontal steel web member (5) are both provided with a plurality of herringbone steel web members (4) and horizontal steel web members (5), each herringbone steel web member (4) is arranged between the upper chord section steel (2) and the two lower chord steel cables (3), and each horizontal steel web member (5) is arranged between the two lower chord steel cables (3); the two lower chord steel cables (3) form a shuttle shape; the upper chord section steel (2) is made of steel pipe, and the upper chord section steel (2) is used in cooperation with the lower chord steel cable (3) and the herringbone steel web member (4) arranged below to place a photovoltaic panel thereon, the photovoltaic panel absorbs solar energy to generate electricity. The longitudinal structure (b) comprises a stand column (1) and a steel beam (6); a plurality of stand columns (1) are arranged at equal intervals along the two sides of the bank slope of the channel, and a steel beam (6) is arranged between two adjacent stand columns (1) on the same side. The lower chord steel cable (3) is made of high-strength steel bar, steel strand or steel wire rope, and each lower chord steel cable (3) is arranged between the stand columns (1) arranged on both sides. The upper chord section steel (2) is arranged between the stand columns (1) arranged on both sides. The length of the upper chord section steel (2) and the lower chord steel cable (3) is between 30 meters and 80 meters. ​ ​ 2.The large-span fabricated cable-truss structure for channel covering according to claim 1, characterized in that: ​ 3. The long-span fabricated cable-truss structure for channel covering according to claim 1 or 2, characterized in that: ​ 4. The long-span fabricated cable-truss structure for channel covering according to claim 3, characterized in that: ​ 5. The long-span fabricated cable-truss structure for channel covering according to claim 1, characterized in that: ​

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