Novel offshore photovoltaic pile top connection node device

Abstract

The utility model provides a novel offshore photovoltaic pile top connecting node device which comprises a lower prefabricated pipe pile foundation, a pile top circular sealing plate, a height-adjustable connecting supporting plate, an arc-shaped reinforcing plate and an upper truss structure lower chord. Before the lower prefabricated pipe pile foundation leaves a factory, the outer side of an original prestress tension steel end plate is connected with the pile top circular sealing plate in a full-welded mode, the outer side of the pile top circular sealing plate is equal to the end plate in thickness and equal to the lower prefabricated pipe pile foundation in diameter, and a small hole is formed in the center of the pile top circular sealing plate. The device has the advantage that the device can be simply constructed on the sea.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pile foundation construction technical field especially relates to a novel offshore photovoltaic pile top connecting node device. BACKGROUND

[0002] The upper structure of the offshore photovoltaic project is inverted triangular truss structure, and the bottom is circular chord. The lower foundation is prefabricated pipe pile, and the top is circular cross section. Due to the construction deviation of offshore vessel pile foundation and the influence of wind and wave after the completion of pile sinking, the vertical height and horizontal displacement deviation of the pile top position from the design position are inevitable.

[0003] A connecting node device that can facilitate offshore simple construction and allow certain vertical and horizontal deviation of the pile top is needed to connect the upper structure and the lower foundation.

[0004] Based on the above reasons, the utility model provides a novel offshore photovoltaic pile top connecting node device. SUMMARY

[0005] In view of the deficiencies in the prior art, the utility model aims at providing a filtering device in the production process of a novel offshore photovoltaic pile top connecting node device to solve the problems in the background art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: in view of the deficiencies in the prior art, the utility model aims at providing a novel offshore photovoltaic pile top connecting node device, which comprises a lower prefabricated pipe pile foundation, a pile top circular sealing plate, an adjustable height connecting supporting plate, an arc-shaped reinforcing plate and an upper chord of truss structure, a circular pile top sealing plate with the same thickness as the original prestressed tension steel end plate and the same diameter as the lower prefabricated pipe pile foundation is full-welded to the outer side of the original prestressed tension steel end plate before the lower prefabricated pipe pile foundation leaves the factory, and a small hole is formed in the center of the circular pile top sealing plate.

[0007] Further, the adjustable height connecting supporting plate is welded to the pile top circular sealing plate, and the arc-shaped reinforcing plate is welded to the upper chord of truss structure. ADVANTAGEOUS EFFECTS

[0008] Before the lower prefabricated pipe pile foundation leaves the factory, a circular pile top sealing plate with the same thickness as the original prestressed tension steel end plate and the same diameter as the lower prefabricated pipe pile foundation is full-welded to the outer side of the original prestressed tension steel end plate, and a small hole is formed in the center of the circular pile top sealing plate to prevent air tightness during pile driving.

[0009] After the on-site pile sinking construction of the lower prefabricated pipe pile foundation is completed, the vertical displacement deviation and the horizontal deviation of the pile top are measured.

[0010] The height of the adjustable height connecting support plate is 300mm, according to the vertical deviation measurement result of the lower prefabricated pipe pile foundation, the height of the adjustable height connecting support plate can be cut and adjusted on the land assembled wharf, and the upper chord of the truss structure, the arc reinforcing plate and the adjustable height connecting support plate are welded on the land wharf.

[0011] The upper chord of the truss structure is hoisted to the top of the pile at sea, the bottom of the adjustable height connecting support plate is welded with the circular sealing plate at the top of the pile, and the deviation of the center position of the adjustable height connecting support plate and the circular sealing plate at the top of the pile can allow partial horizontal deviation of the top of the pile. The welding surface of the bottom of the adjustable height connecting support plate is preferably a "mouth" type without a reentrant corner, so as to facilitate the welding operation at sea and ensure the welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a main structure schematic view of the utility model.

[0013] In the figure: 1, lower prefabricated pipe pile foundation; 2, circular sealing plate at the top of the pile; 3, adjustable height connecting support plate; 4, arc reinforcing plate; 5, upper chord of the upper truss structure. DETAILED DESCRIPTION

[0014] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0015] Reference Figure 1 The utility model provides a kind of technical scheme: a kind of novel offshore photovoltaic pile top connecting node device, including lower prefabricated pipe pile foundation 1, circular sealing plate 2 at the top of the pile, adjustable height connecting support plate 3, arc reinforcing plate 4 and upper chord 5 of upper truss structure, the original prestressed tension steel end plate outside full welding connection a block with end plate equal thickness with the lower prefabricated pipe pile foundation 1 equal diameter before lower prefabricated pipe pile foundation 1 factory outlet is connected with the circular sealing plate 2 at the top of the pile, and the center of the circular sealing plate 2 at the top of the pile is opened small hole.

[0016] In the embodiment, the adjustable height connecting support plate 3 is welded and connected on the circular sealing plate 2 at the top of the pile, and the arc reinforcing plate 4 is welded and connected with the upper chord 5 of the upper truss structure.

[0017] Working principle:

[0018] Before lower prefabricated pipe pile foundation 1 factory outlet, the original prestressed tension steel end plate outside full welding connection a block with end plate equal thickness with lower prefabricated pipe pile foundation equal diameter circular pile top sealing plate 2, circular pile top sealing plate 2 needs to be opened a small hole in the center, prevent airtight when pile driving.

[0019] After lower prefabricated pipe pile foundation 1 field pile sinking construction is completed, the vertical displacement deviation and horizontal deviation of the top of the pile are measured.

[0020] The height of the adjustable height connecting support plate 3 is 300mm, according to the vertical deviation measurement results of the lower prefabricated pipe pile foundation 1, the height of the adjustable height connecting support plate 3 can be cut and adjusted on the wharf assembled on the truss structure on land, and the upper chord 5 of the truss structure, the arc-shaped reinforcing plate 4 and the adjustable height connecting support plate 3 are welded in the wharf on land.

[0021] The upper chord 5 of the truss structure is hoisted to the top of the pile at sea, and the bottom of the adjustable height connecting support plate 3 and the circular sealing plate 2 at the top of the pile are welded. The deviation of the center position of the adjustable height connecting support plate 3 and the circular sealing plate 2 at the top of the pile can allow partial horizontal deviation of the top of the pile. The welding surface at the bottom of the adjustable height connecting support plate 3 is preferably a "mouth" type without a reentrant corner, which is convenient for welding operation at sea and ensures the welding quality.

[0022] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A novel offshore photovoltaic pile top connection node device, characterized in that: The structure includes a lower precast pipe pile foundation, a circular capping plate at the top of the pile, an adjustable height connecting plate, an arc-shaped reinforcing plate, and a lower chord of the upper truss structure. Before leaving the factory, the lower precast pipe pile foundation has a prestressed tensioned steel end plate with a fully welded outer side to a circular capping plate with the same thickness as the end plate and the same diameter as the lower precast pipe pile foundation. A small hole is opened at the center of the circular capping plate.

2. The novel offshore photovoltaic pile top connection node device according to claim 1, characterized in that: The adjustable height connecting plate is welded to the circular sealing plate at the top of the pile, and the lower chord of the upper truss structure is welded to the arc-shaped reinforcing plate.

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