I-shaped UHPC photovoltaic support

Abstract

The utility model belongs to the technical field of photovoltaic power generation, and relates to an I-shaped UHPC photovoltaic support. The photovoltaic support comprises I-shaped piles and a support body. Each I-shaped pile comprises a pile head, a pile body and a pile bottom which are sequentially connected from top to bottom; the cross section of the pile body is I-shaped, and the pile body comprises a web plate and flanges; the I-shaped pile is integrally prefabricated by ultra-high performance concrete, and a plurality of constructional steel bars are arranged in the I-shaped pile; the bracket comprises a sleeve, a vertical rod and an inclined rod; the inclined rod is obliquely arranged and is fixed on the sleeve through the vertical rod; the support is fixed to the upper portion of the I-shaped pile in the mode that the pile head is sleeved with the sleeve, and the axial direction of the inclined rod is parallel to the plane where a web of the pile body is located. According to the photovoltaic support, the tensile strength and durability of the photovoltaic pipe pile are improved, and meanwhile the manufacturing cost, the complexity and the pollution influence are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic power generation technical field relates to a kind of H-shaped UHPC photovoltaic support. BACKGROUND

[0002] With the high-quality development of era, people's demand for solar photovoltaic power station is increasing, and solar photovoltaic power generation, a green and environmentally friendly energy, has been widely used on a large scale. It mainly uses solar photovoltaic panels to collect solar energy and convert it into electrical energy. Therefore, large-scale solar photovoltaic panels are needed.

[0003] Currently, commonly used photovoltaic supports include concrete pipe pile supports and carbon steel hot-dipped galvanized steel supports. Among them, ordinary concrete pipe piles have low strength, especially low tensile strength. When the end of the pipe pile is subjected to a large transverse load, the pile body is prone to tensile cracking and damage. Moreover, ordinary concrete is easily damaged by wind and rain erosion, external force impact, or corrosion due to chemical reaction, which seriously reduces the service life of the pile body and leads to poor durability of the support. At the same time, the use of steel bars in the construction process of ordinary concrete pipe piles requires a large amount of steel bars, making the pile body itself heavy. During construction, the steel bars need to be tied, making the construction process more complicated. The production of prestressed high-strength concrete pipe piles is complex, and the pipe pile often needs to be cored to improve the bearing stress of the pipe pile during use. However, cored pipe piles are prone to internal concrete seepage, leading to a decrease in concrete pouring quality. Although carbon steel hot-dipped galvanized steel supports are common, they have the disadvantages of high cost, high pollution, poor durability, and poor economy. SUMMARY

[0004] The utility model aims to provide a kind of H-shaped UHPC photovoltaic support, which improves the tensile strength and durability of photovoltaic pipe piles while reducing the cost, complexity and pollution.

[0005] The technical solution of the utility model to solve the above technical problems is as follows.

[0006] The utility model provides a kind of H-shaped UHPC photovoltaic support, including H-shaped pile and support;H-shaped pile includes pile head, pile body and pile bottom sequentially connected from top to bottom;The cross section of pile body is H-shaped, including web and flange;H-shaped pile is integrally prefabricated by ultra-high performance concrete, and inside is configured with several structural reinforcement;Support includes sleeve, vertical rod, inclined rod;Inclined rod is arranged obliquely, and is fixed on sleeve by vertical rod;Support is fixed in the upper portion of H-shaped pile by the way of sleeve being sleeved on pile head, and the axial direction of inclined rod is parallel to the plane where the web of pile body is located.The above technical solution uses ultra-high performance concrete, which can improve the overall strength and bending stiffness of H-shaped pile;When in use, solar panels are fixed on inclined rod, at this time, the cross section of the pile body in the shape of "H", combined with the inclined direction of inclined rod, makes the windward direction of solar panels consistent with the strong axis direction, fully utilizes the advantages of the bending stiffness of H-shaped pile body in the strong axis direction, small deformation, saves construction materials and improves economic benefits.

[0007] Further, in the H-shaped UHPC photovoltaic support, the support further includes a support rod; the two ends of the support rod are fixed on the vertical rod and the inclined rod, respectively; by providing the support rod, the support strength of the inclined rod for placing the solar panels is enhanced.

[0008] Further, in the H-shaped UHPC photovoltaic support, the cross-sectional shape of the pile head is rectangular; after the sleeve is sleeved, the pile head and the sleeve are not easy to rotate relative to each other, and the processing is more convenient.

[0009] Further, in the H-shaped UHPC photovoltaic support, the shape of the pile bottom is a quadrangular prism; it is more stable to be placed in the ground.

[0010] Further, in the H-shaped UHPC photovoltaic support, the shape of the pile bottom is a quadrangular pyramid; it is convenient to be inserted into the ground.

[0011] Further, in the H-shaped UHPC photovoltaic support, the thickness of the web of the pile body is 40mm-60mm, and the thickness of the flange is 40mm-70mm.

[0012] Further, in the H-shaped UHPC photovoltaic support, the outer wrapped rectangular cross-sectional dimension of the pile body is 30cm×40cm.

[0013] Further, in the H-shaped UHPC photovoltaic support, a slip stop gasket is arranged at the connection between the vertical rod, the inclined rod and the support rod; the connection strength between the rod bodies is strengthened.

[0014] Further, in the H-shaped UHPC photovoltaic support, the support is made of aluminum alloy material; it is light in weight, high in strength, corrosion-resistant, and is very suitable for being used as the support part of the photovoltaic power generation system.

[0015] The utility model discloses a beneficial effect of the H-shaped UHPC photovoltaic support is that the excellent material performance of super high performance concrete greatly improves the overall strength and the bending stiffness of the pile body, compared with the ordinary concrete pipe pile, while enhancing the structural performance of the pile body, the concrete consumption of the prefabricated pile body is reduced, so that the volume of the pile body is reduced, and then it is favorable to reduce the wind load acting area of the pile body, and reduce the wind load acting force of the pile body, the pile body section of the H-shaped pile makes the windward surface direction of the solar panel consistent with the strong shaft direction, and then the advantages of the H-shaped pile body, such as large bending stiffness and small deformation in the strong shaft direction, are fully utilized, so that the construction materials are greatly saved, and the economic benefit is improved under the condition that the photovoltaic support can be normally used, the H-shaped pile is prepared in the prefabrication field and is transported to the construction site for embedding, the embedding method adopts the static pressing pile method, the sound is small, the pollution is little, and the current construction development target is met, the bracket is made of light weight, high strength and corrosion resistant aluminum alloy material, and is more suitable for the bracket use of the photovoltaic power generation system. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 And Figure 3 It is the three-dimensional structure diagram of the H-shaped pile in the H-shaped UHPC photovoltaic support of the utility model.

[0017] Figure 2 And Figure 4 It is the structure schematic diagram of the H-shaped UHPC photovoltaic support of the utility model.

[0018] The codes in the drawings are as follows: 1, H-shaped pile;1-1, pile head;1-2, pile body;1-3, pile bottom;2, bracket;2-1, sleeve;2-2, vertical rod;2-3, inclined rod;2-4, support rod. DETAILED DESCRIPTION

[0019] As Figures 1 to 4 Indicated, a kind of H-shaped UHPC photovoltaic support, including H-shaped pile 1 and bracket 2.Thereinto, UHPC is Ultra-High Performance Concrete, is the abbreviation of super high performance concrete.

[0020] H-shaped pile 1 includes pile head 1-1, pile body 1-2 and pile bottom 1-3 connected in sequence from top to bottom;The cross-sectional shape of pile head 1-1 is rectangular, and the cross section of pile body 1-2 is H-shaped, including web and flange, wherein the thickness of the web of pile body 1-2 is 40mm~60mm, the thickness of flange is 40mm~70mm, and the outer package rectangular cross-sectional dimension of pile body 1-2 is 30cm×40cm, as Figures 1-2 Indicated, the shape of pile bottom 1-3 is four-pyramid, more convenient to insert ground, in addition, as Figures 3-4As shown, the shape of the pile bottom 1-3 can also be a square, which is more stable after being placed in the ground. The H-shaped pile 1 is integrally prefabricated from ultra-high performance concrete and is internally configured with a plurality of structural steel bars. Since the number of structural steel bars used is very small, a large amount of steel material can be saved. In addition, the excellent material performance of the ultra-high performance concrete greatly reduces the amount of concrete used under the condition of similar structural performance. In addition, the cross section of the pile body 1-2 is in the shape of a "H" and different sizes and different flanges and web thicknesses of the H-shaped UHPC photovoltaic pile can be produced according to different use environments.

[0021] The support 2 is made of aluminum alloy material and includes a sleeve 2-1, a vertical rod 2-2, an inclined rod 2-3, and a support rod 2-4. The inclined rod 2-3 is inclined and fixed on the sleeve 2-1 through the vertical rod 2-2. The two ends of the support rod 2-4 are fixed on the vertical rod 2-2 and the inclined rod 2-3, respectively, thereby supporting the inclined rod 2-3. The number of the vertical rod 2-2 and the support rod 2-4 is both 2. In addition, a slip stop washer is arranged at the connection between the vertical rod 2-2 and the inclined rod 2-3 to enhance the connection strength between the vertical rod 2-2 and the inclined rod 2-3.

[0022] The support 2 is fixed to the upper part of the H-shaped pile 1 by sleeving the sleeve 2-1 on the pile head 1-1. The axial direction of the inclined rod 2-3 is parallel to the plane where the web of the pile body 1-2 is located.

[0023] The processing and installation process of the H-shaped UHPC photovoltaic support is as follows.

[0024] In the prefabrication plant, the H-shaped pile 1 is prepared by using ultra-high performance concrete material. Specifically, a wooden template is made in the prefabrication plant, and the ultra-high performance concrete is poured and cured by high-temperature steam and natural curing to form the H-shaped pile 1. After the prefabrication is completed, the H-shaped pile 1 is transferred to the construction site by a crane and transportation equipment for embedding. After the H-shaped pile 1 is transported to the construction site, a static pile press is used for pile pressing. Before pile pressing, the site should be leveled, the line is measured and released, the instruments are detected, and the pile quality is prepared. After the pile pressing preparation is completed, the H-shaped pile 1 is hoisted to the pile clamping box by the crane and fixed. Then, the verticality of the pile press is adjusted, the H-shaped pile 1 is positioned at the pile end, and finally the pile pressing is started. The verticality of the pile press should be adjusted so that the verticality of the pile body (90°) is controlled within 1%. The pile end positioning should be aligned with the predetermined pile position, and the allowable deviation is less than 20 mm. During the pile pressing operation, attention should be paid to the pile pressing after the pile is positioned and the verticality is adjusted to meet the requirements. If the pile tip encounters hard objects during the pressing process, it should be handled in time before pressing. During the pile pressing operation, the depth of the H-shaped pile 1 into the soil and the corresponding pressure gauge reading should be carefully recorded after the pile pressing is started.

[0025] After the pile pressing operation is completed, the installation of the bracket 2 located at the upper part of the H-shaped pile 1 is started. Firstly, the sleeve 2-1 is divided into two halves along the axis of the weak shaft of the pile body 1-2 during processing, and bolt holes are reserved for later connection; the vertical rod 2-2, the inclined rod 2-3, the support rod 2-4, the anti-slip washer and the connecting steel plate used later need to reserve bolt holes at the connection positions for later connection. Specifically, the installation process of the bracket 2 is as follows: the reserved bolt holes of the two half sleeves 2-1 are aligned with the embedded bolts of the pile head 1-1 to place the two half sleeves 2-1, and then the two half sleeves 2-1 are combined and fixed by using the connecting steel plate and the bolts. After the sleeve 2-1 is connected with the pile head 1-1, the upper part of the bracket 2 is overlapped, (1) the vertical rod 2-2 and the inclined rod 2-3 are connected; the overlapping position is adjusted, the left and right vertical rods 2-2 are placed inside the inclined rod 2-3, and the reserved bolt holes of the vertical rods 2-2 and the inclined rod 2-3 are aligned with each other, the anti-slip washer with the reserved bolt holes is placed between the vertical rod 2-2 and the inclined rod 2-3 to enhance the connection strength between them, and then the expansion bolts are used to pass through the vertical rod 2-2, the inclined rod 2-3 and the reserved bolt holes of the anti-slip washer for fixation; (2) the connection between the support rod 2-4 and the vertical rod 2-2 and the inclined rod 2-3 is performed; the support rod 2-4 is placed inside the vertical rod 2-2 and the inclined rod 2-3, the position of the support rod 2-4 is adjusted, the reserved bolt holes of the support rod 2-4 are aligned with the reserved bolt holes of the vertical rod 2-2 and the inclined rod 2-3 respectively, the anti-slip washers with the reserved bolt holes are respectively placed between the support rod 2-4 and the vertical rod 2-2 and the inclined rod 2-3 to enhance the connection strength therebetween, and then the expansion bolts are used to pass through the reserved bolt holes of the support rod 2-4, the vertical rod 2-2, the inclined rod 2-3 and the anti-slip washers for connection. After the upper part of the bracket 2 is overlapped, the bracket 2 is connected with the sleeve 2-1, and the lower end of the vertical rod 2-2 is connected with the embedded bolts of the pile head 1-1.

[0026] After the H-shaped UHPC photovoltaic bracket is overlapped, three longitudinal beams are used to connect the bracket 2 at the upper part of the H-shaped pile 1 to form the photovoltaic bracket part of the entire photovoltaic power generation system, and then the solar panels are fixed and installed at the upper part of the photovoltaic bracket part, i.e. the upper part of the inclined rod 2-3, and the lines are laid to form a complete photovoltaic power generation system.

[0027] The utility model discloses a H-shaped pile, adopt super high performance concrete integration prefabrication to be formed, super high performance concrete has super high compressive strength, tensile strength, super high compressive strength is the basis of all mechanical properties, super high axial tensile strength increases the bending capacity of pile body, so can reduce the thickness of the flange and web of pile body, under the condition of satisfying photovoltaic pile construction requirement and normal use, reduce the use of concrete raw materials, the pile body of H-shaped structure can further save the concrete consumption, and make its strong shaft direction and the windward surface direction of solar panel keep identical, give full play to the advantages of the bending stiffness of pile body strong shaft direction is big, and the deformation is small, the bending stiffness of weak shaft direction is small because of being perpendicular to the windward surface direction of solar panel, and the wind load acting force is small, so although the bending stiffness is small, but still can satisfy the normal use demand of photovoltaic support. In addition, super high performance concrete has good expansion degree and flow degree, is suitable for the pumping, distribution and centrifugal of photovoltaic pipe pile, improves production efficiency.

Claims

1. A U-shaped UHPC photovoltaic support, characterized in that, The utility model provides a kind of pile and support, including H-shaped pile (1) and support (2); The H-shaped pile (1) includes pile head (1-1), pile body (1-2) and pile bottom (1-3) connected in order from top to bottom;The cross section of the pile body (1-2) is H-shaped, including web and flange; The H-shaped pile (1) is integrally prefabricated by ultra-high performance concrete, and is internally configured with several structural steel bars; The support (2) includes sleeve (2-1), vertical rod (2-2), inclined rod (2-3);The inclined rod (2-3) is inclinedly arranged, and is fixed on the sleeve (2-1) through the vertical rod (2-2); The support (2) is fixed on the upper part of the H-shaped pile (1) by sleeving the sleeve (2-1) on the pile head (1-1), and the axial direction of the inclined rod (2-3) is parallel to the plane where the web of the pile body (1-2) is located.

2. The I-beam UHPC photovoltaic racking of claim 1, wherein, The support (2) further includes support rod (2-4);Both ends of the support rod (2-4) are fixed on the vertical rod (2-2) and the inclined rod (2-3) respectively.

3. The I-beam UHPC photovoltaic mount of claim 1, wherein, The cross-sectional shape of the pile head (1-1) is rectangular.

4. The I-beam UHPC photovoltaic mount of claim 1, wherein, The shape of the pile bottom (1-3) is a quadrangular prism.

5. The I-beam UHPC photovoltaic mount of claim 1, wherein, The shape of the pile bottom (1-3) is a quadrangular pyramid.

6. The I-beam UHPC photovoltaic mount of claim 1, wherein, The thickness of the web of the pile body (1-2) is 40mm-60mm, and the thickness of the flange is 40mm-70mm.

7. The I-beam UHPC photovoltaic mount of claim 1, wherein, The outer rectangular cross-sectional dimension of the pile body (1-2) is 30cm×40cm.

8. The I-beam UHPC photovoltaic mount of claim 2, wherein, The connection parts of the vertical rod (2-2), the inclined rod (2-3) and the support rod (2-4) are all provided with anti-slip gaskets.

9. The I-beam UHPC photovoltaic mount of claim 1, wherein, The support (2) is made of aluminum alloy material.

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