JPWO2020105205A1 - Prop of wind power generation equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support column of a wind power generation facility having high strength, low transportation cost of a member for a support column, and low construction cost. [Solution] A plurality of columns (2) of a wind power generation facility (1) are provided. It is composed of a precast concrete panel (8) and a plurality of PC rope rods. One stage is formed from a plurality of panels (8), these are stacked in a plurality of stages, and a PC rope rod is passed through the panels (8) of each stage up and down. The plurality of panels (8) constituting each stage are arranged so that their horizontal positions are displaced from each of the plurality of panels (8) constituting the lower stage. As a result, among the plurality of PC rope rods penetrating the arbitrary one panel (8), some PC rope rods are placed on the predetermined one panel (8) on the upper stage, and the other PC rope rods are placed on the predetermined one panel (8). It will penetrate each of the other panels (8). [Selection diagram] Fig. 1

Description

The present invention relates to a strut of a wind power generation facility, and more specifically, the wind power generation facility has a relatively high strut, a nacelle rotatably installed at the tip of the strut, and a rotatable nacelle. It is composed of a rotor shaft provided, a hub provided at the tip of the rotor shaft, and a plurality of blades connected to the hub, and relates to a support column of such a wind power generation facility.

Wind power generation, which obtains electric power from wind energy, which is a kind of so-called renewable energy, is attracting attention due to heightened environmental awareness, and many wind power generation facilities have been installed in recent years. Wind farms are built both onshore and offshore, but wind farms have relatively high stanchions, rotatably installed nacelles on these stanchions, and rotatably supported nacelles. It consists of a rotor shaft, a hub provided at the tip of the rotor shaft, and a plurality of blades connected to the hub. When the blade is exposed to wind, the blade, hub, and rotor shaft rotate. Inside the nacelle, a speed increaser, a generator, a transformer, etc. that increase the rotation speed of the rotor shaft are provided, and the rotational energy is converted into electric power. That is, it is generated. The generated power is sent to the outside via a power cable provided inside the column.

The columns that rotatably support the nacelle have conventionally been constructed as follows. A plurality of cylinders having different diameters are manufactured in advance from a steel plate having a predetermined thickness at a factory and transported to the construction site of a wind power generation facility. A foundation is constructed from concrete, and a cylinder with the largest diameter is fixed to this foundation. Next, a cylinder having a smaller diameter is connected onto this cylinder and welded by welding. Alternatively, fasten with bolts or the like. As a result, the cylinders are connected to each other. Furthermore, a cylinder with a smaller diameter is connected on it, and it is connected by welding, bolts, or the like. By repeating such work, a support column having a desired height can be obtained.

Special Table 2012-591244

Patent Document 1 describes a tower structure that can be used as a support for a wind power generation facility. The tower structure described in Patent Document 1 is constructed from a plurality of concrete wall members manufactured in advance in a factory. The wall member is made of a concrete plate having a rectangular shape in which one short side is slightly shorter than the other short side, and a strut portion having a predetermined thickness extending along the long side is formed on both long sides. The strut portion is provided with a through groove portion that penetrates the strut portion in the axial direction in advance so that a steel rod member, that is, a PC steel rod can be inserted. A plurality of such wall members are erected with the shorter short side facing up, and a plurality of such wall members are arranged in the circumferential direction, and adjacent wall members are connected to each other by a predetermined lock member. Then, the first stage of the tower structure of polygonal pillars can be obtained. Next, a plurality of wall members are arranged in the circumferential direction on the first stage, and adjacent wall members are connected to each other by a predetermined lock member. That is, the second stage of the tower structure is obtained. At this time, the wall members are aligned in the first step and the second step. That is, the columns of the upper and lower wall members are aligned. A PC steel rod is inserted into the support column, and the wall members of the first and second stages are connected by the PC steel rod. Similarly, a plurality of wall members are arranged in the circumferential direction on the second stage, and adjacent wall members are connected to each other by a predetermined lock member to obtain a third stage of the tower structure. The wall members of the second and third stages are connected by PC steel rods. In the same way, the 4th stage, 5th stage, ... Are constructed. Finally, tension is applied to the PC steel rod. The tower structure is firmly formed by so-called post tension.

Both the conventional columns and the tower structure described in Patent Document 1 can support the nacelle of the wind power generation facility, and both have excellent points. However, there are some problems to be solved for each. First of all, the strength of conventional columns is sufficiently large and excellent, but there are problems in the transportation and construction of steel plate cylinders. In general, wind power generation facilities are often selected as construction sites on coasts and hills where there are no houses nearby, and road conditions are not good. Since the cylinders that make up the columns have a large diameter and a long length, they need to be transported by a large trailer, but there are often no roads on which the large trailer can travel. In such a case, the road must be prepared in advance so that a large trailer can run. That is, there is a problem in transportation. Next, even if the steel plate cylinders can be transported to the construction site, there is a problem that a large crane for suspending the cylinders is required to construct the columns from a plurality of cylinders. This is because the cylinder is heavy. Since large cranes must be used, construction is inevitably costly.

Since the tower structure described in Patent Document 1 is constructed from a plurality of concrete wall members, there are almost no problems in transportation or construction. That is, the wall member is relatively small and can be transported by a general truck, and the cost required for transportation is small. In addition, because it is lighter than a steel cylinder, it does not require a large crane for construction. That is, the cost required for construction is expected to be relatively small. However, the tower structure described in Patent Document 1 has a complicated construction process. Specifically, it is a point in which wall members arranged in the circumferential direction are connected to each other next to each other. The upper and lower wall members may be connected to each other by PC steel rods, but adjacent wall members must be connected to each other by a predetermined lock member, which complicates the construction process. Therefore, the construction cost is slightly increased. There are also concerns about strength. In foreign countries where there is no problem of earthquakes, even if the tower structure described in Patent Document 1 has sufficient strength, there is concern in Japan where there are many earthquakes. Adjacent wall members are connected to each other by a lock member, but this connection may be broken when the wall members are rolled by an earthquake. Adopting a large and sturdy locking member will provide some strength, but will increase the cost of the locking member.

An object of the present invention is to solve the above-mentioned problems. Specifically, the strength of the support column is sufficient, the cost required for transporting the member for constructing the support column is low, and the support column is constructed. The purpose is to provide a support for wind power generation equipment, which has a simple process and low cost.

In order to achieve the above object, the present invention comprises a support column of a wind power generation facility including a plurality of precast concrete panels and a plurality of PC rope rods. Specifically, one stage is formed from a plurality of panels, the one stage is stacked in a plurality of stages, and a PC rope rod is passed through the panels of each stage up and down. In the present invention, the plurality of panels constituting each stage are arranged so that their horizontal positions are displaced from each of the plurality of panels constituting the lower stage. As a result, among the plurality of PC rope rods penetrating any one panel, some PC rope rods are on the predetermined one panel on the upper stage, and other PC rope rods are on the other one panel. Will penetrate each. As a result, the plurality of panels are firmly connected to each other without being connected to each other in the horizontal direction, and a strong support can be obtained.

That is, the invention according to claim 1 is provided on a support column, a nacelle rotatably installed at the tip of the support column, a rotor shaft rotatably provided on the nacelle, and a tip end of the rotor shaft. It is the support of the wind power generation facility including the hub and the plurality of blades connected to the hub, and the support is composed of a plurality of precast concrete panels and a plurality of PC rope rods. Therefore, one stage is formed from the plurality of the panels, the one stage is stacked in a plurality of stages, the PC rope rod penetrates the panel of each stage in the vertical direction, and the top of any stage is formed. The plurality of the panels stacked in the panel are arranged so as to be displaced from each other in the horizontal position with respect to the plurality of the panels constituting the lower stage, whereby a plurality of PC rope rods penetrating the arbitrary one panel. Is a support column of a wind power generation facility, wherein a part thereof penetrates a predetermined one panel in the upper stage thereof, and the other penetrates the other panel in the upper stage.
Is configured as.
In the invention according to claim 2, in the support column of the wind power generation facility according to claim 1, the panel constituting each stage is formed to have a narrower width toward the upper stage, whereby the support column is formed upward. It is configured as a support for wind power generation equipment, which is characterized by being formed with a small diameter.
According to the third aspect of the present invention, in the support column of the wind power generation facility according to the first or second aspect, the plurality of the panels constituting each stage are arranged at intervals from each other, whereby the respective stages are arranged. It is configured as a support for wind power generation equipment, which is characterized by having a gap formed.
According to a fourth aspect of the present invention, in the support column of the wind power generation facility according to any one of claims 1 to 3, the panel has a flat plate shape, and the one-stage portion composed of a plurality of the panels has an upper surface. It is configured as a support for a power generation facility, characterized in that the shape is formed into a hollow polygon.
The invention according to claim 5 is the support column of the wind power generation facility according to any one of claims 1 to 4, wherein the panel is formed on a wall portion having a predetermined plate thickness and both ends of the wall portion. It is configured as a pillar of a power generation facility, which is composed of a pair of pillars, and the PC rope rod penetrates the pillar.

As described above, the present invention is provided on the column, the nacelle rotatably installed at the tip of the column, the rotor shaft rotatably provided on the nacelle, and the tip of the rotor shaft. The target is a support column of a wind power generation facility consisting of a hub and a plurality of blades connected to the hub. According to the present invention, the support column is composed of a plurality of precast concrete panels and a plurality of PC rope rods, and one stage is formed from the plurality of panels, and the one stage is stacked in a plurality of stages. A PC rope rod penetrates the panel of each stage in the vertical direction. Since the support column is constructed from the panel and the PC rope rod, neither the panel nor the PC rope rod requires a large trailer for transportation, and the transportation cost can be reduced. In addition, the columns can be constructed without the need for a large crane. According to the present invention, the plurality of panels stacked on the arbitrary tier are arranged so as to be displaced from each other in the horizontal position with respect to the plurality of panels constituting the lower tier, whereby any one panel can be formed. A part of the plurality of PC rope rods penetrating penetrates the predetermined one panel on the upper stage thereof, and the other penetrates the other panel on the upper stage. As a result, the panels are connected to each other in a brace shape, and even if they are not connected to each other in the lateral direction, that is, in the circumferential direction, the effect of substantially connecting the panels in the circumferential direction can be obtained. Therefore, the panels in the vertical direction and the peripheral direction can be connected only by the PC rope rod penetrating in the vertical direction, the process required for the construction is simple, and the construction cost can be reduced. Further, since the panels in the circumferential direction are connected to each other, no special member is required, and there is no possibility that such a member is destroyed, so that a high-strength support column can be constructed.
According to another invention, the plurality of panels constituting each stage are arranged at intervals from each other, whereby a gap is formed in each stage. Therefore, the support column has a structure with many gaps as a whole. Since the wind power generation facility is installed in a place where a strong wind blows, a force due to the wind acts on the columns, but according to the present invention, since many gaps are formed in the columns, such a force can be reduced.
According to another invention, the panel is composed of a wall portion having a predetermined plate thickness and a pair of pillar portions formed at both ends of the wall portion, and the PC rope rod penetrates the pillar portion. .. The structure can be firmly formed by post-tensioning on the PC rope rod by applying tension, but according to the present invention, the portion through which the PC rope rod penetrates is a pillar portion and can cope with high compressive stress. Therefore, high-strength columns can be constructed.

It is a perspective view which shows the wind power generation equipment which provided the support | support which concerns on embodiment of this invention. It is a perspective view which shows the panel which concerns on this Embodiment which constitutes the support column which concerns on embodiment of this invention. In the figure which shows the formwork used for placing a panel which concerns on this embodiment, (A) and (B) are perspectives which show the formwork when the panel which has a different width length is placed. It is a figure. It is a figure which shows the panel which concerns on this Embodiment, (A) and (B) are the perspective views which show the panel which the length of the width is different from each other. It is a figure which shows the support | support which concerns on this Embodiment which consists of the plurality of panels which concerns on this embodiment, (A) is the perspective view of the support | column, (B), (C) are support | column in (A) respectively. Is a cross-sectional view taken along the line X1-X1 and X2-X2. (A) to (C) are cross-sectional views of columns according to various embodiments of the present invention, respectively. (A) and (B) are cross-sectional views of columns according to various embodiments of the present invention, respectively. It is a perspective view which shows the support | column which concerns on other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described. As shown in FIG. 1, the wind power generation facility 1 according to the present embodiment is horizontally rotated on the support column 2 according to the present embodiment, which is characterized in its structure, and the support column 2. The nacelle 4, a rotor shaft (not shown) that is rotatably supported by the nacelle 4, a hub 5 provided on the rotor shaft, and a blade 6 that is angle-adjustably attached to the hub 5. It is composed of 6, ... When the blades 6, 6, ... Receive the wind, the rotor shaft, hub 5, blades 6, 6, ... Rotate. In the nacelle 4, although not shown in the figure, from a speed increaser that accelerates the rotation of the rotor shaft, a generator that converts the accelerated rotation into electric power, and an inverter that converts the accelerated rotation into alternating current of a desired frequency. A power conversion device, etc., is provided to convert wind energy into electrical energy. That is, it is generated. The generated power will be transmitted to the outside via the power cable provided in the support column 5.

The support column 2 according to the present embodiment is composed of a plurality of precast concrete panels 8, 8, .... These panels 8, 8, ... Are stacked in a plurality of stages, and the width thereof is narrower than that of the lower stage panels 8, 8, ..., Although the upper layer panels 8, 8, ... , Other shapes or structures are the same. That is, as shown in FIG. 2, the panel 8 is composed of a pair of left and right pillar portions 10, 10 and a wall portion 11 having a predetermined plate thickness formed between these pillar portions 10, 10. The whole is configured in a substantially rectangular shape. The distance between the pair of pillars 10 and 10 is wide at the lower end and narrow at the upper end. That is, in the panel 8, of the pair of rectangular short sides, the short side corresponding to the upper side is shorter. That is, it has a trapezoidal shape. Since a strong compressive stress acts when the columns 2 according to the present embodiment are constructed, the pair of column portions 10 and 10 are formed to have a thickness necessary for obtaining strength. In the present embodiment, the pillars 10 and 10 are regular octagonal pillars, but they may be cylindrical or have other shapes. A plurality of seed pipes 13, 13, ... In which the PC rope rod is inserted are embedded in the pillar portions 10, 10. The number of seed tubes 13, 13, ... May be appropriately increased or decreased depending on the number of PC rope rods required for strength, and in the present embodiment, eight are embedded in one pillar portion 10. A step portion 14 is formed in the central portion of the wall portion 11, and the step portion 14 is a portion formed when concrete is cast into a formwork to manufacture a panel 8 as described below. Is.

The panel 8 according to the present embodiment is manufactured in advance at the factory and transported to the construction site of the wind power generation facility, and is transported by the formwork 16 shown in FIGS. 3A and 3B. Manufactured. The form 16 is composed of a first form member 17, a second form member 18, and a plate-shaped form member 19. The first form member 17 and the second form member 18 are formed from a metal plate having a predetermined thickness by sheet metal processing, and have symmetrical shapes. The first and second formwork members 17 and 18 have pillar portion forming recesses 17a and 18a forming the pillar portions 10 and 10 of the panel 8, and flat plate portions 17b for forming a part of the wall portion 11. 18b and 18b are provided. When the flat plate portions 17b, 18b of the first and second formwork members 17 and 18 are placed on the plate-shaped formwork member 19 and fixed, the formwork 16 is formed. As shown in FIGS. 3A and 3B, the first and second formwork members 17 and 18 are separated from each other or brought close to each other to manufacture panels 8 having different widths. However, as necessary, the plate-shaped formwork members 19 and 19'with different widths are replaced to form the formwork 16. When concrete is placed in a state where the first and second formwork members 17 and 18 are separated from each other as shown in FIG. 3A, a wide panel 8 as shown in FIG. 4A is formed. It can be manufactured, and when concrete is placed in a state where the first and second formwork members 17 and 18 are close to each other as shown in FIG. 3 (B), as shown in FIG. 4 (B). A narrow panel 8 can be manufactured.

A method of constructing the support column 2 according to the present embodiment will be described from the panels 8, 8, ... According to the present embodiment. First, concrete is placed at the construction site to make a foundation. As shown in FIG. 5C, four wide panels 8, 8, ... Are arranged on the foundation. At this time, the four panels 8, 8, ... Are arranged on the four sides selected every other side of the eight sides of the regular octagon. Although not shown in the figure, the PC rope rod is inserted into the seed pipes 13, 13, ... Of the first-stage panels 8, 8, .... That is, the first stage of the support column 2 is constructed. Next, as shown in FIG. 5B, four panels 8, 8, ... With a slightly narrow width are arranged on the first stage consisting of these four panels 8, 8, ... Then, the second stage of the support column 2 is constructed. At this time, the first-stage panels 8, 8, ... And the second-stage panels 8, 8, ... Are arranged so that their horizontal positions are displaced from each other, and the pillars of the first-stage panels 8, 8, ... Make sure that the parts 10, 10, ... And the pillar parts 10, 10, ... Of the second-stage panels 8, 8, ... Are aligned. A PC rope rod is inserted into the seed pipes 13, 13, ... Of the second stage panels 8, 8, ..., And is connected to the first stage PC rope rod with a predetermined coupler. That is, the PC rope rod penetrates in the first and second stages. Since the first-stage and second-stage panels 8, 8, ... Are displaced from each other in horizontal positions, the PC rope rod inserted into the left pillar portion 10 of the first-stage predetermined panel 8 is the second-stage. The PC rope rod inserted into the right pillar portion 10 of the predetermined panel 8 located on the left side of the first stage is another panel located on the right side of the second stage. It is in a state of penetrating each of the left pillar portions 10 of 8. Since the PC rope rod penetrates in the vertical direction, the upper and lower panels 8, 8, ... Are connected to each other like a so-called brace.

Similarly, on the second stage consisting of four panels 8, 8, ..., Four panels 8, 8, ... With a narrower width are arranged so that the horizontal positions are displaced, and the panels 8, 8, ... Insert the PC rope rod into the panel and connect it to the PC rope rod of the second panel 8, 8, .... That is, the third stage of the support column 2 is constructed. In the same manner below, as shown in FIG. 5A, the panels 8, 8, ... Are stacked in a plurality of stages, the PC rope rods are inserted, and the PC rope rods are connected. After construction to the top, post-tensioning will be performed to apply tension to the PC rope rod. If necessary, the grout material is injected into the seed tubes 13, 13, .... The support column 2 according to the present embodiment is completed.

The support column 2 of the wind power generation facility according to the present embodiment can be deformed in various ways. For example, in the above embodiment, the panels 8, 8, ... Are arranged so as to form a regular octagon as shown in FIGS. 5 (B) and 5 (C), whereby the support 2 is formed. It was formed like a regular octagonal prism or a regular octagonal pyramid. However, for example, as shown in FIGS. 6A and 6B, the panels 8a, 8b, ... May be arranged in a regular hexagon, a square, or in another polygon. Good. When arranged as shown in (A) and (B) of FIG. 6, struts having a hexagonal pyramid and a quadrangular pyramid shape are formed. A support column 2b obtained by arranging panels 8b, 8b, ... As shown in FIG. 6B is shown in FIG. 7A. The PC rope rods 22a, 22b, ... Are indicated by small black dots in FIG. 6 and a two-dot chain line in FIG. 7, but the number of PC rope rods 22a, 22b, ... Is the number of each pillar portion 10a. One of 10b, ... May be inserted one by one, or a plurality of ones may be inserted at a time.

As shown in FIG. 6C, the panels 8c, 8c, ... Can be composed of only the wall portions 11c, 11c, ... Without providing the pillar portions. This is because if the wall portions 11c, 11c, ... Are formed to be thick, they can sufficiently withstand compressive stress. In the example shown in FIG. 6C, the arrangement of the panels 8c, 8c, ... Is also modified. That is, the panels 8c, 8c, ... Are arranged so as to form each side of the square, and the upper square panels 8c, 8c, ... Are rotated 45 degrees with respect to the lower square, that is, they are displaced in the horizontal direction. It is arranged in this way. Then, the PC rope rods 22c, 22c, ... Are inserted into the wall portions 11c, 11c, ....

Other variants are possible. In the columns 2, 2a, ... According to the present embodiment, the panels 8, 8a, ... Constituting the columns 2, 2a, ... Have all been described so as to have the same shape. However, in addition to the panels 8, 8a, ... Constituting the columns 2, 2a, ..., Auxiliary panels, that is, auxiliary panels 23d, 23d, ... May be provided. In FIG. 7B, such a support column 2d is shown. That is, with respect to the support column 2b shown in FIG. 7A, the support column 2d shown in FIG. 7B has auxiliary panels 23d and 23d added, and the auxiliary panels 23d and 23d provide a gap. It has a closed structure.

In the present embodiment, the panels 8, 8a, ... Have been described as having a flat plate shape, but as shown in FIG. 8, the panels 8e, 8e, ... May be formed into a curved plate shape. .. Also in this embodiment, the panels 8e, 8e, ... Forming the upper and lower stages are arranged so as to be displaced from each other in the horizontal direction. Further, also in the support column 2e according to this embodiment, the PC rope rods 22e, 22e, ... That penetrate the one panel 8e of the arbitrary step are partially attached to the one panel 8e on the left side of the upper step. The other penetrates one panel 8e on the right side of the upper row.

The columns 2, 2a, ... According to the present embodiment can be modified in other ways. Panels 8, 8a, ... Have been described so that seed pipes 13, 13, ... Are embedded in advance so that concrete is cast. That is, the PC rope rods 22, 22a, ... Are inserted into the manufactured panels 8, 8a, ... Later. However, the seed tubes 13, 13, ... Are not always essential. For example, the panels 8, 8a, ... May be manufactured by so-called unbonding, in which PC rope rods 22, 22a, ... Are embedded in advance and concrete is cast with grease attached.

Not only the structure of the columns 2, 2a, ... According to the present embodiment but also the construction method can be modified. In the construction method described above, the panels 8, 8a, ... Are lifted one by one with a crane or the like, and the columns 2, 2a, ... Are constructed by stacking them one by one. However, a plurality of stages, for example, three stages are constructed on the ground from the plurality of panels 8, 8a, ..., And temporarily tensioned by a PC rope rod. Then, the plurality of stages are lifted by a crane. Next, a plurality of panels 8, 8a, ... Are newly constructed on the ground for a plurality of stages, temporarily tensioned by a PC rope rod, and lifted by a crane. This may be repeated to construct columns 2, 2a, ....

1 Wind power generation equipment 2 Pillars 4 Nacelle 5 Hubs 6 Blades 8 Panels 10 Pillars 11 Walls 16 Formwork 17 First formwork member 18 Second formwork member 19 Plate-shaped formwork member 22 PC rope rod 23 Auxiliary panel

In order to achieve the above object, the present invention comprises a support column of a wind power generation facility including a plurality of precast concrete panels and a plurality of PC rope rods. Specifically, one stage is formed from a plurality of panels, the one stage is stacked in a plurality of stages, and a PC rope rod is passed through the panels of each stage up and down. In the present invention, the plurality of panels constituting each stage are arranged at intervals from each other so that a gap is formed in each stage, and the plurality of panels constituting each stage constitute the lower stage thereof. Arrange the panels so that their horizontal positions are offset from each other. As a result, among the plurality of PC rope rods penetrating any one panel, some PC rope rods are on the predetermined one panel on the upper stage, and other PC rope rods are on the other one panel. Will penetrate each. As a result, the plurality of panels are firmly connected to each other without being connected to each other in the horizontal direction, and a strong support can be obtained.

That is, the invention according to claim 1 is provided on a support column, a nacelle rotatably installed at the tip of the support column, a rotor shaft rotatably provided on the nacelle, and a tip end of the rotor shaft. It is the support of a wind power generation facility consisting of a hub and a plurality of blades connected to the hub, and the support is composed of a plurality of precast concrete panels and a plurality of PC rope rods. Therefore, one stage is formed from the plurality of the panels, the one stage is stacked in a plurality of stages, and the PC rope rod penetrates the panel of each stage in the vertical direction to form each stage. said plurality said panels are spaced apart from each other, whereby there is formed a gap to each stage, a plurality the panels of any stage, with respect to a plurality the panels of the lower A plurality of PC rope rods, each of which is arranged so as to be displaced in the horizontal position and thereby penetrates any one of the panels, a part of the plurality of PC rope rods is placed on the predetermined panel on the upper stage, and the other is on the upper stage. It is configured as a support for wind power generation equipment, which is characterized by penetrating each of the other one panel.
In the invention according to claim 2, in the support column of the wind power generation facility according to claim 1, the panel constituting each stage is formed to have a narrower width toward the upper stage, whereby the support column is formed upward. It is configured as a support for wind power generation equipment, which is characterized by being formed with a small diameter.
According to the third aspect of the present invention, in the support column of the wind power generation facility according to the first or second aspect, the panel has a flat plate shape, and the one-stage portion composed of a plurality of the panels has a hollow upper surface shape. It is configured as a support for power generation equipment, which is characterized by being formed in a rectangular shape.
The invention according to claim 4 is the support column of the wind power generation facility according to any one of claims 1 to 3 , wherein the panel is formed on a wall portion having a predetermined plate thickness and both ends of the wall portion. It is configured as a pillar of a power generation facility, which is composed of a pair of pillars, and the PC rope rod penetrates the pillar.

As described above, the present invention is provided on the column, the nacelle rotatably installed at the tip of the column, the rotor shaft rotatably provided on the nacelle, and the tip of the rotor shaft. The target is a support column of a wind power generation facility consisting of a hub and a plurality of blades connected to the hub. According to the present invention, the support column is composed of a plurality of precast concrete panels and a plurality of PC rope rods, and one stage is formed from the plurality of panels, and the one stage is stacked in a plurality of stages. A PC rope rod penetrates the panel of each stage in the vertical direction. Since the support column is constructed from the panel and the PC rope rod, neither the panel nor the PC rope rod requires a large trailer for transportation, and the transportation cost can be reduced. In addition, the columns can be constructed without the need for a large crane. According to the present invention, the plurality of panels constituting each stage are arranged at intervals from each other, whereby a gap is formed in each stage. Therefore, the support column has a structure with many gaps as a whole. Since the wind power generation facility is installed in a place where a strong wind blows, a force due to the wind acts on the columns, but according to the present invention, since many gaps are formed in the columns, such a force can be reduced. Further, according to the present invention, a plurality of panels in an arbitrary stage are arranged so as to be displaced from each other in a horizontal position with respect to the plurality of panels in the lower stage, whereby a plurality of panels penetrating the arbitrary one panel. A part of the PC rope rod penetrates a predetermined panel on the upper stage thereof, and the other penetrates the other panel on the upper stage. As a result, the panels are connected to each other in a brace shape, and even if they are not connected to each other in the lateral direction, that is, in the circumferential direction, the effect of substantially connecting the panels in the circumferential direction can be obtained. Therefore, the panels in the vertical direction and the peripheral direction can be connected only by the PC rope rod penetrating in the vertical direction, the process required for the construction is simple, and the construction cost can be reduced. Further, since the panels in the circumferential direction are connected to each other, no special member is required, and there is no possibility that such a member is destroyed, so that a high-strength support column can be constructed.
According to another invention, the panel is composed of a wall portion having a predetermined plate thickness and a pair of pillar portions formed at both ends of the wall portion, and the PC rope rod penetrates the pillar portion. .. The structure can be firmly formed by post-tensioning on the PC rope rod by applying tension, but according to the present invention, the portion through which the PC rope rod penetrates is a pillar portion and can cope with high compressive stress. Therefore, high-strength columns can be constructed.

Claims (5)

A strut, a nacelle rotatably installed at the tip of the strut, a rotor shaft rotatably provided on the nacelle, and a hub provided at the tip of the rotor shaft are connected to the hub. It is the support of the wind power generation facility consisting of a plurality of blades.
The support column is composed of a plurality of precast concrete panels and a plurality of PC rope rods, and one stage is formed from the plurality of the panels, and the one stage is stacked in a plurality of stages, and the PC rope rod is used. Penetrates the panel of each stage in the vertical direction.
A plurality of the panels stacked on the arbitrary tier are arranged so as to be displaced from each other in the horizontal position with respect to the plurality of the panels constituting the lower tier, whereby a plurality of the panels penetrating the arbitrary one panel. A wind power generation facility is characterized in that a part of the PC rope rod penetrates a predetermined panel in the upper stage thereof, and the other penetrates the other panel in the upper stage. Pillars. In the support column of the wind power generation facility according to claim 1, the panel constituting each stage is formed to have a narrower width toward the upper stage, whereby the support column is formed to have a smaller diameter upward. The pillars of the wind power generation equipment. In the support column of the wind power generation facility according to claim 1 or 2, the plurality of the panels constituting each stage are arranged at intervals from each other, whereby a gap is formed in each stage. The pillars of the wind power generation equipment. In the support column of the wind power generation facility according to any one of claims 1 to 3, the panel has a flat plate shape, and the one-stage portion composed of a plurality of the panels has a polygonal shape with a hollow upper surface. A pillar of a power generation facility, which is characterized by being In the pillar of the wind power generation facility according to any one of claims 1 to 4, the panel is composed of a wall portion having a predetermined plate thickness and a pair of pillar portions formed at both ends of the wall portion. , The pillar of the electric power generation facility, characterized in that the PC rope rod penetrates the pillar portion.

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