Multi-span counterweighted cable truss structure for channel covering

Abstract

The application discloses a multi-span counterweight cable truss structure for channel covering, wherein the upper chord section steel (2) is arranged above the lower chord steel cable (3); the horizontal steel web member (5) is arranged between two lower chord steel cables (3); the single circular-arc-shaped upper chord section steel (2) and the two lower chord steel cables (3) are arranged with the herringbone-shaped steel web member (4) therebetween; the upper chord section steel (2), the lower chord steel cable (3), the herringbone-shaped steel web member (4) and the horizontal steel web member (5) form a triangle; the lower end of the upper chord section steel (2) is fixed with the support structure (c), and the other end of the support structure (c) is fixed on the channel bottom, which overcomes the defects that the structure in the prior art cannot meet the existing channel large-span requirement, has the advantages of convenient transportation of each component, on-site assembly and good market value.

Description

Technical Field

[0001] This invention relates to the technical field of water conveyance channels, and more specifically to a multi-span counterweight 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 platforms in existing water-flowing channels presents the following problems: Large-scale water conveyance projects have already been constructed, and these channels are characterized by large spans in the width direction. Conventional structures cannot meet the requirements of these projects.

[0005] Setting up steel structure platforms within water conveyance channels presents 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 multi-span counterweight cable truss structure for channel covering.

[0008] The objective of this invention is achieved through the following technical solution: a multi-span counterweight 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. There are several transverse and longitudinal structures. Several transverse structures are arranged at intervals above the channel, and the longitudinal structures on each side are arranged at intervals on the channel bank. The transverse structures are located between the longitudinal structures on both sides.

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

[0010] The upper chord steel section is located above the lower chord steel cable; 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 cable and the two lower chord steel cables, and the upper chord steel cable, the herringbone-shaped steel web member and the horizontal steel web member form a triangle;

[0012] The lower end of the upper chord steel section is provided with a support structure, and the other end of the support structure is fixed to the bottom of the channel.

[0013] 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.

[0014] In the above technical solution: there is at least one supporting structure, and each supporting structure includes a precast concrete annular column and a precast concrete foundation. The top of the precast concrete annular column is fixed to the upper chord steel, and the bottom is provided with a precast concrete foundation. The precast concrete foundation is placed in the middle or on both sides of the channel bottom.

[0015] In the above technical solution: the upper chord steel is made of steel pipe, the upper chord steel at both ends on the bank slope is fixed to the column, and the upper chord steel set above the channel bottom is fixed to the precast concrete ring column.

[0016] In the above technical solution: the lower chord steel cable is made of high-strength steel bars, steel strands or steel wire ropes, and the shape formed between the two symmetrically arranged lower chord steel cables is spindle-shaped. The lower chord steel cables at both ends on the bank slope are fixed to the columns, and the lower chord steel cable set above the channel bottom is fixed to the precast concrete ring column.

[0017] 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.

[0018] In the above technical solution: the length of the upper chord steel section is between 30 meters and 80 meters.

[0019] The present invention has the following advantages: 1. The upper chord steel in the present invention is made of steel pipe, and the lower chord steel cable is made of high-strength steel bars, steel strands or steel wire ropes. The length of the upper chord steel and the lower chord steel cable is between 30 meters and 80 meters, which solves the problem of steel structure platforms facing large channel spans.

[0020] 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.

[0021] 3. All components of this invention can be manufactured in the factory, making overall manufacturing convenient. 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.

[0022] 4. In this invention, photovoltaic panels can be arranged within a triangle formed between the upper chord steel, the herringbone steel web members, and the horizontal steel web members. The photovoltaic panels can absorb solar energy to generate electricity, thus producing certain economic benefits.

[0023] 5. The support structure of the present invention can provide multiple fulcrums for the upper transverse structure, making the overall structure more uniform and stable under stress. At the same time, the upper chord steel is streamlined, and the streamlined appearance is beautiful and has a good visual effect. Attached Figure Description

[0024] Figure 1 A structural layout diagram of the existing channels.

[0025] Figure 2 This is a structural layout diagram of the multi-span time of the present invention.

[0026] Figure 3 This is a top view of the single span of the present invention.

[0027] Figure 4 This is a cross-sectional view of a single span of the present invention.

[0028] Figure 5 This is a diagram showing the arrangement of the triangular structure in this invention.

[0029] In the diagram: Horizontal structure a, Longitudinal structure b, Column 1, Upper chord steel section 2, Lower chord steel cable 3, Herringbone steel web member 4, Horizontal steel web member 5, Steel beam 6, Precast concrete ring column 7, Precast concrete foundation 8, Existing ground A, Road B, Canal C, Canal bottom D. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1-5 As shown: A multi-span counterweight 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. There are several transverse structures a and several longitudinal structures b. Several transverse structures a are arranged at intervals above the channel, and the longitudinal structures b on each side are arranged at intervals on the channel bank. The transverse structure a is located between the two longitudinal structures b.

[0032] The transverse structure a includes an upper chord steel section 2, a lower chord steel cable 3, a herringbone steel web member 4, a horizontal steel web member 5, and a supporting structure c;

[0033] The upper chord steel section 2 is located above the lower chord steel cable 3; a horizontal steel web member 5 is provided between the two lower chord steel cables 3;

[0034] A herringbone-shaped steel web member 4 is provided between the single arc-shaped upper chord steel 2 and the two lower chord steel cables 3. The upper chord steel 2, the herringbone-shaped steel web member 4 and the horizontal steel web member 5 form a triangle.

[0035] The lower end of the upper chord steel 2 is provided with a support structure c, and the other end of the support structure c is fixed to the bottom of the channel.

[0036] 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. 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; Steel beam 6 is made of steel beam or steel truss: Steel beam 6 is used to connect longitudinal columns 1.

[0037] The aforementioned transverse structure a and longitudinal structure b form 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. With the upper chord steel section 2 under compression and the lower chord steel cable 3 under tension, the forces within the transverse structure a are evenly distributed 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 compression-bending and tension components work together, creating a self-balancing system with reasonable stress distribution, convenient manufacturing and transportation, and on-site assembly. It is a platform structure with good application value.

[0038] 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.

[0039] The longitudinal structure b includes columns 1 and steel beams 6. Several columns 1 are installed at equal intervals along both sides of the channel bank slope, and a steel beam 6 is installed between two adjacent columns 1 on the same side. The columns 1 are made of steel or reinforced concrete, and the steel beams 6 are typically made of steel pipes. The conventional spacing between adjacent columns 1 is between 6 and 9 meters. This spacing is the most economical, determined through extensive calculations. The arrangement of the upper chord steel section 2 and the lower chord steel cable 3, as well as the arrangement of the columns 1 and steel beams 6, within this spacing is optimal, meeting engineering requirements while reducing engineering costs.

[0040] 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. There is at least one supporting structure c, and each supporting structure c includes a precast concrete ring column 7 and a precast concrete foundation 8. The top of the precast concrete ring column 7 is fixed to the upper chord steel 2, and the bottom is provided with a precast concrete foundation 8. The precast concrete foundation 8 is placed in the middle or on both sides of the channel bottom.

[0041] When there are two support structures c, the support structures c are located on both sides of the bottom of the channel. The two precast concrete ring columns 7 are placed at the edge of the bottom of the channel, and the precast concrete foundations 8, which are arranged at the bottom of the precast concrete ring columns 7, are also arranged at the edge of the bottom of the channel.

[0042] The top of each of the precast concrete ring columns 7 is fixed to the upper chord steel 2, and the two adjacent upper chord steel 2 located above the channel are bent into an arc shape.

[0043] When there is one support structure c, the support structure c is located in the middle of the channel bottom. Similarly, the top of the precast concrete ring column 7 is fixed to the upper chord steel 2, and the precast concrete foundation 8 is placed in the middle of the channel.

[0044] Advantages of precast concrete ring columns 7: Precast concrete ring columns are set in the channel to reduce the span of the cable truss structure, provide one or more support points for the upper transverse structure a, increase the overall stiffness of the structure, and make the structure more stable.

[0045] The upper chord steel 2 is made of steel pipe. The upper chord steel 2 made of steel pipe has a certain degree of hardness. 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.

[0046] The upper chord steel 2 located at both ends of the bank slope is fixed to the column 1, and the upper chord steel 2 located above the channel bottom is fixed to the precast concrete ring column 7.

[0047] 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 spindle shape. The lower chord steel cables 3 located at both ends on the bank slope are fixed to the column 1. The lower chord steel cable 3 located above the channel bottom is fixed to the precast concrete ring column 7.

[0048] 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.

[0049] Meanwhile, the lower chord steel cable 3 is made of high-strength steel bars, steel strands or steel wire ropes, with good overall performance and high rigidity, which can withstand vertical loads such as roof panels and photovoltaic panels.

[0050] 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.

[0051] 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.

[0052] The length of the upper chord steel section 2 is between 30 meters and 80 meters. The length of the upper chord steel section 2 of 30 meters to 80 meters meets the conventional channel width, and the platform constructed between the upper chord steel section 2 and the lower chord steel cable 3 meets the requirements for large-span water conveyance within the channel.

[0053] The parts not described in detail above are all existing technologies.

Claims

1. A multi-span counterweight cable truss structure for channel covering, 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 channel bank slope, a plurality of said transverse structures (a) are arranged above the channel at intervals, a plurality of said longitudinal structures (b) are arranged on the channel bank slope at intervals on each side, and said transverse structures (a) are located between said longitudinal structures (b) on both sides, characterized in that: said transverse structure (a) comprises upper chord section steel (2), lower chord steel cable (3), herringbone steel web member (4), horizontal steel web member (5) and support structure (c); said upper chord section steel (2) is located above said lower chord steel cable (3); horizontal steel web member (5) is arranged between two said lower chord steel cables (3); herringbone steel web member (4) is arranged between a single arc-shaped said upper chord section steel (2) and two said lower chord steel cables (3), and said upper chord section steel (2), lower chord steel cable (3), herringbone steel web member (4) and horizontal steel web member (5) form a triangular structure; said upper chord section steel (2) is provided with support structure (c) at the lower end, and the other end of said support structure (c) is fixed on the channel bottom; said support structure (c) is at least one, each said support structure (c) comprises precast concrete ring column (7) and precast concrete foundation (8), the top end of said precast concrete ring column (7) is fixed with said upper chord section steel (2), and the bottom end is provided with precast concrete foundation (8), and said precast concrete foundation (8) is placed in the middle or on both sides of the channel bottom; said lower chord steel cable (3) is made of high-strength steel bar, steel strand or steel wire rope, and the shape enclosed between two symmetrically arranged said lower chord steel cables (3) is shuttle-shaped, said lower chord steel cable (3) located at both ends of the bank slope is fixed with the stand column (1), and said lower chord steel cable (3) arranged above the channel bottom is fixed with the precast concrete ring column (7); said upper chord section steel (2) is made of steel pipe, purlin is arranged above said upper chord section steel (2), and photovoltaic panel is arranged above the purlin; said cable truss structure is a structure type of rigid and flexible combination, said upper chord section steel (2) has large rigidity and bears the vertical load of roof panel or photovoltaic panel, said lower chord steel cable (3) is relatively flexible and provides elastic support for said upper chord section steel (2) through said herringbone steel web member (4), and photovoltaic panel absorbs solar energy to generate electricity; said longitudinal structure (b) comprises stand column (1) and steel beam (6); a plurality of said stand columns (1) are installed at equal intervals along the two sides of the channel bank slope, and steel beam (6) is installed between two adjacent said stand columns (1) on the same side. The interval between adjacent said stand columns (1) is between 6 meters and 9 meters. Said upper chord section steel (2) located at both ends of the bank slope is fixed with said stand column (1), and said upper chord section steel (2) arranged above the channel bottom is fixed with precast concrete ring column (7). ​ ​ ​ ​ ​ ​ 2. A multi-span counterweighted cable truss structure for channel covering according to claim 1, characterized in that: ​ 3. A multi-span counterweighted cable truss structure for channel covering according to claim 1, characterized in that: ​ 4. A multi-span counterweighted cable truss structure for covering a channel according to claim 1 or 2, characterized in that: ​ 5. A multi-span counterweighted cable truss structure for covering a channel according to claim 4, characterized in that: The human-shaped steel web member (4) and the horizontal steel web member (5) are both several, each of the human-shaped steel web member (4) is installed between the upper chord steel (2) and two lower chord steel cables (3), and each of the horizontal steel web member (5) is installed between two lower chord steel cables (3).

6. A multi-span counterweighted cable truss structure for covering a channel according to claim 1 or 5, characterized in that: The length of the upper chord steel (2) is between 30m-80m.

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