Adjustable connecting device for steel truss and tubular pile

Abstract

An adjustable connecting device for a steel truss and pipe piles comprises a pile head connecting plate, a plurality of pipe pile connecting bolt holes used for being connected and matched with the pipe piles are formed in the middle of the pile head connecting plate, and a pipe pile connecting bolt is screwed in each pipe pile connecting bolt hole. A plurality of steel truss connecting bolt holes used for being connected and matched with a steel truss are formed in the pile head connecting plate on the two sides of the pipe pile connecting bolt hole, a steel truss connecting bolt is screwed in each steel truss connecting bolt hole, and a pressing plate matched with the steel truss is further arranged on each steel truss connecting bolt in a sleeved mode. A guide column matched with the tubular pile is further arranged at the bottom of the pile head connecting plate, inclined struts are further arranged on the portions, on the two sides of the guide column, of the pile head connecting plate, and hoops used for being connected and matched with the tubular pile are connected to the inclined struts. According to the utility model, the problems of offshore pile splicing and welding required by the existing connection mode can be solved, the relative position deviation of the pile foundation can be compensated within a certain range, and the construction efficiency of steel truss installation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connection between a steel truss and a prestressed pipe pile for offshore photovoltaics, in particular to an adjustable connection device between a steel truss and a pipe pile. Background Art

[0002] Most offshore photovoltaic projects use single pile foundations, and photovoltaic brackets are set on the top of pipe piles. The project uses a large number of piles and has a high construction cost. In line with the development trend of the industry, by expanding the pile spacing, using large-span steel trusses, and setting up multiple rows of photovoltaic brackets on the trusses, the amount of piles can be effectively reduced. The connection between the truss and the pipe piles is an important part of the construction, which requires a lot of manpower and material resources for construction.

[0003] At present, the connection between steel trusses and pipe piles is welded. The specific method is as follows: after the prestressed pipe piles are sunk, the pile top elevation is re-measured. If the pile top elevation is lower than the design elevation, the pile connection is required. After the elevation is re-measured, the flange on the pile top is cleaned and leveled, and the end plate is welded and connected manually by climbing to the pile top. After the end plate is welded, the steel truss is lifted and dropped to the top plate of the pile. The end plate and truss are welded manually. From the actual construction of offshore photovoltaics, offshore pile connection and welding are difficult to achieve, and the construction efficiency is low. It is dangerous and consumes a lot of manpower and material resources. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an adjustable connection device for steel trusses and pipe piles, which is efficient and safe in construction, does not require offshore pile connection and offshore welding, and can compensate for pile position deviation.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions. The utility model is an adjustable connection device between a steel truss and a pipe pile, including a pile head connection plate, a plurality of pipe pile connection bolt holes for connecting with the pipe pile are arranged in the middle of the pile head connection plate, a pipe pile connection bolt is screwed on each pipe pile connection bolt hole, a plurality of steel truss connection bolt holes for connecting with the steel truss are arranged on the pile head connection plate on both sides of the pipe pile connection bolt hole, a steel truss connection bolt is screwed on each steel truss connection bolt hole, and a pressure plate for connecting with the steel truss is also mounted on each steel truss connection bolt; a guide column for connecting with the pipe pile is also arranged at the bottom of the pile head connection plate, and diagonal braces are also arranged on the pile head connection plate on both sides of the guide column, and clamps for connecting with the pipe pile are connected to the diagonal braces.

[0006] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned adjustable connection device between steel trusses and pipe piles, the pipe pile connection bolt holes and the steel truss connection bolt holes are both waist-shaped holes.

[0007] The technical problem to be solved by the utility model can also be further achieved through the following technical solutions. For the above-mentioned adjustable connection device between the steel truss and the pipe pile, 6 pipe pile connection bolt holes are provided, and the 6 pipe pile connection bolt holes are evenly distributed in a circle with the center of the pile head connection plate as the center.

[0008] The technical problem to be solved by the utility model can also be further achieved through the following technical solutions. For the above-mentioned adjustable connection device between steel truss and pipe piles, there are 6 steel truss connection bolt holes, and the 6 steel truss connection bolt holes are symmetrically arranged on both sides of the pile head connection plate.

[0009] The technical problem to be solved by the utility model can be further achieved through the following technical solutions. For the adjustable connection device between steel trusses and pipe piles described above, the device also includes an adjustment shim for cooperating with the steel truss connection bolts to adjust and compensate for the elevation error of the pipe piles.

[0010] The technical problem to be solved by the utility model can be further achieved through the following technical solutions. For the adjustable connection device between the steel truss and the pipe pile described above, the guide column is in a truncated cone shape, and the larger end of the guide column is fixedly connected to the pile head connecting plate.

[0011] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned adjustable connection device between the steel truss and the pipe pile, the pile head connection plate is a square steel plate.

[0012] Compared with the prior art, the adjustable connection device of the steel truss and pipe piles of the utility model is a welding-free, adjustable connection structure. After the pile driving construction is completed, the adjustment shim can be used to compensate for the elevation deviation. After the steel truss is in place, it is fastened with bolts, avoiding offshore pile connection and offshore welding operations, effectively improving the construction efficiency, and having important practical significance for improving the work efficiency of offshore steel truss construction and ensuring the safety of construction team workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A structural schematic diagram of the utility model;

[0014] Figure 2 This is an assembly diagram of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Reference Figure 1-2 , an adjustable connection device between a steel truss and a pipe pile, comprising a pile head connection plate 1, which is used as a connecting structure, a part of which is used to fix the steel truss 10, and a part of which is used to fix the steel truss 10 and the pipe pile 11, so as to facilitate the reliable connection between the steel truss 10 and the pipe pile 11;

[0017] A plurality of pipe pile connection bolt holes 2 for connecting with the pipe pile 11 are provided in the middle of the pile head connection plate 1, and a pipe pile connection bolt is screwed on each pipe pile connection bolt hole 2, so that the pipe pile connection bolt is matched with the pipe pile connection bolt hole 2 to realize the connection between the pile head connection plate 1 and the pipe pile 11;

[0018] In order to better connect the pile head connecting plate 1 with the pipe pile 11, a guide column 9 cooperating with the pipe pile 11 is further provided at the bottom of the pile head connecting plate 1, which is used to guide the pile head connecting plate 1 when the pile head connecting plate 1 is installed on the pipe pile 11, so as to achieve rapid positioning. Preferably, the guide column 9 is truncated, and the larger end of the guide column 9 is fixedly connected to the pile head connecting plate 1; oblique braces 4 are also provided on the pile head connecting plate 1 on both sides of the guide column 9, and the oblique braces 4 are connected with clamps 5 for connecting and cooperating with the pipe pile 11, so that the clamps 5 are used to cooperate with the oblique braces 4 to achieve further connection between the pile head connecting plate 1 and the pipe pile 11, so as to achieve fixation and force transmission between the pile head connecting plate 1 and the pipe pile 11;

[0019] A plurality of steel truss connection bolt holes 3 for connecting and cooperating with the steel truss 10 are arranged on the pile head connection plate 1 on both sides of the pipe pile connection bolt hole 2, and a steel truss connection bolt 6 is screwed on each steel truss connection bolt hole 3, so that the steel truss connection bolt 6 can be used to cooperate with the steel truss connection bolt hole 3 to achieve the connection between the steel truss 10 and the pile head connection plate 1; preferably, a pressing plate 7 cooperating with the steel truss 10 is also mounted on each steel truss connection bolt 6, so that the pressing plate 7 can be used to cooperate with the steel truss connection bolt 6 to achieve rapid fixing and locking of the steel truss 10, which helps to provide reliability;

[0020] In order to achieve the connection adjustment between the steel truss 10 and the pipe piles 11, the device also includes an adjusting shim 8 for cooperating with the steel truss connecting bolts 6 to adjust and compensate for the elevation error of the pipe piles 11. When installing the steel truss 10, the adjusting shim 8 can be installed according to the elevation of the pipe piles 11 to adjust and compensate for the elevation error of the pipe piles 11 to ensure the installation effect of the steel truss 10.

[0021] Preferably, the pipe pile connection bolt holes 2 and the steel truss connection bolt holes 3 are waist-shaped holes, and the pipe pile connection bolt holes 2 are provided with 6, and the 6 pipe pile connection bolt holes 2 are evenly distributed in a circle with the center of the pile head connection plate 1 as the center, and the steel truss connection bolt holes 3 are provided with 6, and the 6 steel truss connection bolt holes 3 are symmetrically arranged on both sides of the pile head connection plate 1;

[0022] The pile head connection plate 1 is a square steel plate. Meanwhile, the side length of the pile head connection plate 1 needs to be larger than the diameter of the pipe pile 11 so that when the pile position deviation is large, the pile head connection plate 1 can compensate for the pile position deviation.

[0023] In actual use, taking the adjustable connection device of steel truss and φ700 pipe pile as an example, the inner diameter of the hoop 5 is 700mm, the upper bottom diameter of the guide column 9 is 260mm and the lower bottom diameter is 180mm, the pile head connecting plate 1 is a square steel plate with a side length of 1100mm and a plate thickness of 20mm, and the adjusting washer 8 is a 20mm thick steel plate.

[0024] The construction method of the utility model is:

[0025] First, the operator quickly positions the pile head connecting plate 1 through the guide column 9 and the pipe pile 11, and then adjusts the diagonal brace 4 and tightens the clamp 5 according to the actual position of the two adjacent pipe piles 11, and fixes the pile head connecting plate 1 and the pipe pile 11 with the pipe pile connecting bolts; then, after the steel truss 10 is in place, determine whether it is necessary to add adjustment shims 8 according to the elevation, and then use the steel truss connecting bolts 6 and the pressure plate 7 to fix the steel truss 10 and the pile head connecting plate 1.

[0026] The adjustable connection device for steel trusses and pipe piles provided by the utility model is a welding-free, adjustable connection structure. After the pile sinking construction is completed, adjusting shims are used to compensate for the elevation deviation. After the steel trusses are in place, bolts are used to tighten them, avoiding offshore pile connection and offshore welding operations, effectively improving construction efficiency, and having important practical significance for improving work efficiency in offshore steel truss construction and ensuring the safety of construction team workers.

[0027] The utility model can be used for the construction of connection nodes between offshore steel trusses and pipe piles, solving the problem that the existing connection method requires offshore pile connection and welding, and can compensate for the relative position deviation of the pile foundation within a certain range, thereby improving the construction efficiency of the steel truss installation. Compared with the original steel truss and pipe pile connection process, the utility model has the advantages of efficient and safe construction, no need for offshore pile connection and offshore welding, and the ability to compensate for pile position deviation.

[0028] The beneficial effects of the utility model are:

[0029] (1) Compared with the existing steel truss and pipe pile connection construction technology, the utility model can avoid offshore pile connection and offshore welding, effectively reducing safety risks;

[0030] (2) Compared with the existing connection method between steel trusses and pipe piles, the utility model can effectively compensate for the pile position deviation, and the installation effect of the steel truss is better;

[0031] (3) Compared with the existing steel truss and pipe pile connection method, the utility model can reduce the construction steps and reduce the difficulty of installation;

[0032] (4) All components of the utility model can be processed and manufactured in a factory, which is convenient for effectively reducing offshore operation time and improving efficiency.

Claims

1. An adjustable connection device for a steel truss and a pipe pile, characterized in that: It includes a pile head connecting plate, a plurality of pipe pile connecting bolt holes for connecting with pipe piles are arranged in the middle of the pile head connecting plate, a pipe pile connecting bolt is screwed on each pipe pile connecting bolt hole, a plurality of steel truss connecting bolt holes for connecting with steel trusses are arranged on the pile head connecting plate on both sides of the pipe pile connecting bolt holes, a steel truss connecting bolt is screwed on each steel truss connecting bolt hole, and a pressure plate for connecting with the steel truss is also mounted on each steel truss connecting bolt; a guide column for connecting with pipe piles is also arranged at the bottom of the pile head connecting plate, and diagonal braces are also arranged on the pile head connecting plate on both sides of the guide column, and clamps for connecting with pipe piles are connected to the diagonal braces.

2. The adjustable connection device between steel truss and pipe pile according to claim 1 is characterized in that: The pipe pile connection bolt holes and the steel truss connection bolt holes are both waist-shaped holes.

3. The adjustable connection device between a steel truss and a pipe pile according to claim 1 or 2, characterized in that: The pipe pile connection bolt holes are provided with 6 holes, and the 6 pipe pile connection bolt holes are evenly distributed in a circle with the center of the pile head connection plate as the center.

4. The adjustable connection device between a steel truss and a pipe pile according to claim 1 or 2, characterized in that: There are 6 steel truss connection bolt holes, which are symmetrically arranged on both sides of the pile head connection plate.

5. The adjustable connection device between a steel truss and a pipe pile according to claim 1 is characterized in that: The device also includes an adjusting washer for cooperating with the steel truss connecting bolts to adjust and compensate for the elevation error of the pipe pile.

6. The adjustable connection device for steel trusses and pipe piles according to claim 1 is characterized in that: The guide column is in a truncated cone shape, and a larger end of the guide column is fixedly connected to the pile head connecting plate.

7. The adjustable connection device for steel trusses and pipe piles according to claim 1 is characterized in that: The pile head connecting plate is a square steel plate.

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