Marine photovoltaic steel structure trestle and steel pipe pile connecting node structure

Abstract

The utility model discloses a kind of offshore photovoltaic steel structure trestle and steel pipe pile connecting node structure in offshore photovoltaic power generation technical field, including steel pipe pile, the top of steel pipe pile is provided with connecting node, the top of connecting node is provided with node plate, the top of node plate is provided with crossbeam, the bottom of connecting node is provided with cross guide plate, and cross guide plate is located in the inner chamber top of steel pipe pile, connecting node includes the baffle of being set in the top of steel pipe pile, the top of baffle is provided with node area short column, and the top of node area short column is connected with the bottom of node plate, the connecting place of baffle and node area short column is uniformly provided with stiffened plate.The offshore photovoltaic steel structure trestle and steel pipe pile connecting node structure provided by the utility model have the advantages of reliable structure, good durability, low cost, convenient construction, safe and reliable operation, and adapt to the conditions of marine environment and offshore construction.

Description

Technical Field

[0001] This utility model relates to the field of offshore photovoltaic power generation technology, and in particular to a connection node structure between an offshore photovoltaic steel structure trestle and a steel pipe pile. Background Technology

[0002] Currently, problems such as the shortage of traditional energy and the deterioration of the natural environment are becoming increasingly serious, and the new energy industry is developing rapidly. Among them, the photovoltaic industry, as an important project of the new energy industry, is becoming more and more popular. Due to the continuous development of technology, offshore photovoltaics is a new direction for the utilization of solar energy.

[0003] In offshore photovoltaic projects, the connection between the jetty and the piles is a crucial component ensuring the stability and safety of the entire jetty structure. Traditional jetty-pile connection nodes often face problems such as corrosion and loosening in the marine environment, affecting structural safety and service life. Therefore, it is particularly important to propose a reliable, durable, cost-effective, and easy-to-construct connection node between an offshore photovoltaic steel structure jetty and steel pipe piles. To this end, we propose a connection node structure for an offshore photovoltaic steel structure jetty and steel pipe piles. Utility Model Content

[0004] To address the aforementioned issue of the need for a reliable, durable, cost-effective, and easy-to-construct connection node between a marine photovoltaic steel structure trestle and steel pipe piles, this utility model provides a connection node structure for a marine photovoltaic steel structure trestle and steel pipe piles.

[0005] This utility model provides a connection node structure between a marine photovoltaic steel structure trestle and steel pipe piles, adopting the following technical solution:

[0006] A connection node structure for a marine photovoltaic steel structure trestle and steel pipe pile includes a steel pipe pile, a connection node is provided at the top of the steel pipe pile, a node plate is provided at the top of the connection node, a crossbeam is provided at the top of the node plate, and a cross guide plate is provided at the bottom of the connection node, with the cross guide plate located at the top of the inner cavity of the steel pipe pile.

[0007] Optionally, the connection node includes a partition plate disposed on the top of the steel pipe pile, a node area short column disposed on the top of the partition plate, and the top of the node area short column is connected to the bottom of the node plate, and stiffening plates are uniformly disposed at the connection between the partition plate and the node area short column.

[0008] Optionally, the short column in the node area is connected to the node plate by welding, and the stiffening plate is connected to the partition and the short column in the node area by double-sided welding.

[0009] Based on the above technical features, the short columns in the node area are used to bear the load transmitted from the superstructure of the trestle bridge, and the stiffening plates are connected to the partition plates and the short columns in the node area by double-sided welding to enhance the overall rigidity of the node area.

[0010] Optionally, a stress relief notch is provided at the common connection between the stiffening plate, the partition plate, and the short column in the node area.

[0011] Based on the above technical features, the stress relief gap can avoid stress concentration in the nodal area.

[0012] Optionally, the steel pipe pile is connected to the connecting node by welding, the top of the node plate is connected to the crossbeam by full welding, the bottom of the node plate is connected to the connecting node by welding, and the cross guide plate is fixed to the connecting node by double-sided welding for installation guidance.

[0013] Based on the above technical features, the cross guide plate is fixed to the connection node by double-sided welding, which facilitates the installation and positioning of the connection node. The top of the node plate is connected to the crossbeam by full welding, and the bottom of the node plate is connected to the connection node by welding. The crossbeam is used to transfer the load of the pedestrians above, and the node plate is used to transfer the load of the superstructure to the connection node. The connection of the node plate enhances the connection stiffness between the crossbeam and the connection node, provides additional constraints for the crossbeam and the connection node, and helps to prevent the connection node from buckling locally under compression and the crossbeam from becoming locally unstable under complex stress states.

[0014] Optionally, the steel pipe piles are arranged vertically on the seabed, and the average spacing between any two steel pipe piles along the length of the trestle is 10m.

[0015] Based on the above technical characteristics, steel pipe piles serve as the foundation support for the entire trestle bridge structure.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. The connection node of this utility model adopts an integral design. The processing, welding and anti-corrosion treatment of each component of the connection node are completed on land. After the connection node is transported to the site as a whole, it is installed on the steel pipe pile. Only one installation is required, which reduces the amount of on-site construction work and speeds up the construction speed at sea.

[0018] 2. In the connection node of this utility model, the bottom of the short column in the node area is welded to the partition plate. When the short column in the node area is subjected to pressure, it may buckle locally. Welding the short column to the partition plate can effectively reduce the calculated length of the short column, thereby improving the local stability of the short column. The partition plate and the short column form a more stable structure, which increases the overall stiffness of the node area. When subjected to vertical and horizontal loads, it can reduce the deformation of the node area, making the overall structure of the steel structure trestle bridge more stable and reliable.

[0019] 3. In this utility model, the short columns in the node area of ​​the connection node are welded to the uniformly distributed stiffening plates on both sides. The uniformly distributed stiffening plates can effectively prevent premature local buckling. The stiffening plates and the short columns in the node area work together to increase the overall bending and torsional stiffness of the short columns in the node area. When subjected to various complex loads, the deformation of the short columns in the node area is smaller, thereby improving the stability of the entire node area and even the entire steel structure trestle structure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an elevation view of the present utility model;

[0022] Figure 2 This is an elevation view of the connection node of this utility model;

[0023] Figure 3 This is a plan sectional view of the connection node of this utility model;

[0024] Figure 4 This is a plan view of the top section of the steel pipe pile of this utility model.

[0025] In the diagram: 1. Steel pipe pile; 2. Connection node; 21. Short column in node area; 22. Stiffening plate; 23. Diaphragm; 24. Stress relief notch; 3. Cross beam; 4. Node plate; 5. Cross guide plate. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail below.

[0027] Please refer to the attached diagram in the instruction manual. Figures 1-4 The present invention provides an embodiment of a connection node structure between a marine photovoltaic steel structure trestle and a steel pipe pile, comprising a steel pipe pile 1, a connection node 2 provided at the top of the steel pipe pile 1, a node plate 4 provided at the top of the connection node 2, a crossbeam 3 provided at the top of the node plate 4, and a cross guide plate 5 provided at the bottom of the connection node 2, wherein the cross guide plate 5 is located at the top of the inner cavity of the steel pipe pile 1.

[0028] The connecting node 2 includes a partition plate 23 set on the top of the steel pipe pile 1, a cross guide plate 5 welded to the bottom of the partition plate 23, a node area short column 21 set on the top of the partition plate 23, and the top of the node area short column 21 connected to the bottom of the node plate 4. Stiffening plates 22 are evenly arranged at the connection between the partition plate 23 and the node area short column 21. Stress relief notches 24 are opened at the common connection between the stiffening plate 22, the partition plate 23 and the node area short column 21.

[0029] in:

[0030] The short column 21 in the node area is made of structural steel Q355B and mainly bears the load transmitted from the beam 3 and the node plate 4. The bottom of the short column 21 in the node area is connected to the diaphragm 23 by welding. The wall of the short column 21 in the node area is connected to the stiffening plate 22 by double-sided welding. The stress relief notch 24 can be made by cutting a triangular opening on the outer edge of the connection end to achieve full penetration welding of the short column 21 in the node area with the stiffening plate 22 and the diaphragm 23, ensuring a reliable connection between the three and avoiding stress concentration in the node area.

[0031] The stiffening plate 22 is made of structural steel Q355B and is evenly welded to the top of the partition plate 23 to strengthen the rigidity of the partition plate; it is also welded to the wall of the short column 21 in the node area on both sides to enhance the rigidity of the node area.

[0032] The partition plate 23 is made of structural steel Q355B and is welded to the bottom of the short column 21 in the node area to enhance the overall stability of the node area.

[0033] The top of the beam 3 and the gusset plate 4 are fully welded together to evenly distribute the load transferred from the superstructure to the beam 3 onto the gusset plate 4.

[0034] The gusset plate 4 is made of structural steel Q355B and is fully welded to the top of the connecting node 2. It is used to evenly transfer the load from the beam 3 to the gusset plate 4 to the connecting node 2.

[0035] The cross guide plate 5 is made of structural steel Q355B and is connected to the bottom of the partition plate 23 by double-sided welding, and is positioned by the installation of the connection node 2.

[0036] Furthermore, the outer surfaces of the steel pipe pile 1, connecting node 2, crossbeam 3, node plate 4, and cross guide plate 5 should be sprayed with marine heavy-duty anti-corrosion coating for anti-corrosion treatment.

[0037] When using the structure of this utility model, the construction should be carried out according to the following steps:

[0038] The first step is the construction of steel pipe pile 1. After the steel pipe pile 1 is processed, welded and treated with anti-corrosion in the factory according to the design requirements, it is transported to the sea for pile driving construction.

[0039] Next is the construction of connection node 2. The short column 21, stiffening plate 22 and partition plate 23 in the node area of ​​connection node 2 are processed, welded and anti-corrosion treated on land according to the design requirements. After the cross guide plate 5 is welded to the bottom of the partition plate 23, it is transported to the site, lifted above the steel pipe pile 1 and connected to the steel pipe pile 1 by on-site welding.

[0040] Finally, the construction of beam 3 and node plate 4 is carried out. To address possible construction errors on site, beam 3 is processed, welded and anti-corrosion treated on land according to design requirements, and then transported to the site. It is then lifted above the connecting node 2 and connected to node plate 4 by on-site bottom welding.

[0041] Based on the above construction steps, by reasonably treating different components in different places, we can maximize strengths and minimize weaknesses to achieve better construction results. Specifically, by connecting node 2 and crossbeam 3, and connecting node 2 and steel pipe pile 1 through on-site welding, the connecting node 2, crossbeam 3, and steel pipe pile 1 can form a continuous whole. Welding can ensure that the force is transmitted more evenly and efficiently in the structure, thereby enhancing the overall stability of the steel structure trestle bridge. After on-site welding, there is no possibility of slight relative displacement between the connecting node 2, node plate 4, and steel pipe pile 1, unlike bolted connections. This is crucial for maintaining the overall structural rigidity of the steel structure trestle bridge during use and reduces the additional stress and fatigue problems caused by the relative movement between components.

[0042] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A connection node structure between a marine photovoltaic steel structure trestle and steel pipe piles, characterized in that: The steel pipe pile (1) is provided with a connecting node (2) at the top of the steel pipe pile (1), a node plate (4) is provided at the top of the connecting node (2), a cross beam (3) is provided at the top of the node plate (4), and a cross guide plate (5) is provided at the bottom of the connecting node (2), and the cross guide plate (5) is located at the top of the inner cavity of the steel pipe pile (1).

2. The connection node structure between a marine photovoltaic steel structure trestle and a steel pipe pile as described in claim 1, characterized in that: The connecting node (2) includes a partition plate (23) set on the top of the steel pipe pile (1), a node area short column (21) is set on the top of the partition plate (23), and the top of the node area short column (21) is connected to the bottom of the node plate (4). Stiffening plates (22) are uniformly arranged at the connection between the partition plate (23) and the node area short column (21).

3. The connection node structure between a marine photovoltaic steel structure trestle and a steel pipe pile as described in claim 2, characterized in that: The node area short column (21) is connected to the node plate (4) by welding, and the stiffening plate (22) is connected to the partition plate (23) and the node area short column (21) by double-sided welding.

4. The connection node structure between a marine photovoltaic steel structure trestle and a steel pipe pile according to claim 2, characterized in that: A stress relief notch (24) is provided at the common connection between the stiffening plate (22), the partition plate (23), and the short column (21) in the node area.

5. The connection node structure between a marine photovoltaic steel structure trestle and a steel pipe pile according to claim 1, characterized in that: The steel pipe pile (1) is connected to the connecting node (2) by welding. The top of the node plate (4) is connected to the crossbeam (3) by full welding. The bottom of the node plate (4) is connected to the connecting node (2) by welding. The cross guide plate (5) is fixed to the connecting node (2) by double-sided welding.

6. The connection node structure between a marine photovoltaic steel structure trestle and a steel pipe pile according to claim 1, characterized in that: The steel pipe piles (1) are arranged vertically on the seabed, and the average spacing between each pair of steel pipe piles (1) along the length of the trestle is 10m.

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