Standing frame for tilting, tilting method, and standing method

Abstract

To provide a stand for standing and falling operations, a falling method and a standing method capable of standing and falling a long structure with a single lifting machine, while minimizing the horizontal movement of the boom of the lifting machine.SOLUTION: Provided is a stand 1 for standing and falling operations for performing at least one of the work of falling a standing long structure 2 and the work of standing a long structure that has fallen, including a first support 10 that supports the bottom surface of the long structure 2 in a standing state, a second support 20 that supports the side surface of the long structure 2 in an inclined state, and a connecting member 30 that maintains the distance between the first support 10 and the second support 20. The first support 10, the second support 20, and the connecting member 30 are provided so as to be movable along the longitudinal direction of the long structure 2 in the fallen state.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a stand-up and knockdown pedestal, a knockdown method, and a stand-up method.

Background Art

[0002] Long structures such as column members at a construction site are transported by a transport vehicle such as a trailer in a horizontally laid state. Then, the column member is lifted by the turning, raising and lowering of the boom of a lifting machine such as a crane and the wire winding, and erected vertically. This erection is carried out by hanging a wire above the column member with the main lifting machine, and further hanging a wire below the column member with another lifting machine (a counterweight crane), and lifting the column member vertically while co-suspending both ends of the column member. On the other hand, as a method of erecting a column member using one lifting machine, there are those shown in Patent Document 1 and Patent Document 2. In Patent Document 1, one end of a column member is placed on a wheeled L-shaped end receiving carriage that moves on the traveling rail of a pedestal, and a wire of a lifting machine is hung on the other end of the column member in a horizontal state and lifted. This erection method is disclosed. In this erection method, since one end of the column member is placed on the L-shaped end receiving carriage, the column member moves on the pedestal while rotating around the carriage as a fulcrum in conjunction with the lifting operation of the lifting machine. Patent Document 2 discloses an erection device including a traveling guide member composed of a floor plate laid on a construction yard and a pair of width fixing members arranged in parallel with a predetermined interval on the floor plate, and a slide member that slides on the floor plate along the traveling guide member. In this erection device, one end of a column member is placed on the upper surface of the slide member, the wire of a lifting machine hung on the other end is wound up, and the boom of the lifting machine is erected and rotated as necessary, so that the column member can be erected while being smoothly and safely moved on the traveling guide member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

[0004] The erection method using two cranes simultaneously had problems: it required two lifting machines, resulting in significant construction costs and workspace requirements, as well as a complicated construction procedure. Patent documents 1 and 2 disclose a configuration for erecting column members, but they do not describe how to lay down an upright long structure. To lay down an upright long structure, a wire from a lifting machine is attached to the upper end of the upright long structure, and the long structure is pulled in the tilting direction by the wire while being laid down. In this case, the boom of the lifting machine moves horizontally by the length of the long structure. A problem arose when the length and weight of the long structure were large, as the horizontal force acting on the lifting machine, which should not normally be present, became large. From this perspective, the present invention aims to provide a frame for erecting and tilting long structures, a method for tilting, and an erecting method that can be performed with a single lifting machine, while minimizing the horizontal movement of the lifting machine's boom. [Means for solving the problem]

[0005] To solve these problems, the present invention provides a frame for tilting an upright long structure to a horizontal position and a frame for tilting a horizontal long structure to a horizontal position, comprising a first support that supports the bottom surface of the upright long structure, From the state in which it is supported by the first support, it is tilted. The structure comprises a second support that supports the side surface of the elongated structure, and a connecting member that maintains the distance between the first support and the second support, When the long structure tilts, the support points of the long structure switch from being supported at the bottom by the first support to being supported at the side by the second support, and when the support points switch, The first support, the second support, and the connecting member The aforementioned upright and side-lying frame consists of, It is characterized by being provided so as to be movable as a single unit along the longitudinal direction of the long structure when it is lying on its side. The present invention provides a frame for tilting long structures, which allows a single lifting machine to perform the tilting operation. Furthermore, using this frame, the center of rotation when tilting a long structure shifts from the bottom supported by the first support to the side supported by the second support, thus shortening the radius of rotation. This allows for a reduction in the height of the first support, enabling the construction of a more compact frame. Additionally, if there is no friction during the frame's movement, the long structure will rotate around its center of gravity and tip over with the center of gravity descending vertically. This smooth sliding of the frame along the longitudinal direction of the long structure reduces the travel distance of the upper end of the structure, thereby shortening the horizontal travel distance and significantly reducing the horizontal movement of the lifting machine's boom. The reverse procedure of tilting the long structure can also be used to perform the tilting operation.

[0006] In the upright and side-tilting frame of the present invention, it is preferable that the frame further comprises two running rails provided along the direction of movement of the connecting member, two connecting members are provided, one of which is movably positioned on one of the running rails, and the other connecting member is movably positioned on the other running rail, and the first support and the second support are stretched between the two connecting members. With such a configuration, the upright and side-tilting frame is made easier to move. Furthermore, the first support and the second support can be made wide enough to stably support a long structure. Furthermore, in the upright and lateral tilting frame of the present invention, it is preferable that the second support is provided with a pair of protrusions that prevent lateral displacement of the long structure when it is tilted. With such a configuration, lateral displacement can be prevented when the long structure is supported by the second support, thus preventing the long structure from falling from the second support. Furthermore, in the upright and lateral tilting frame of the present invention, it is preferable that the pair of protrusions are positioned to abut against the side surface of the elongated structure. With this configuration, the pair of protrusions can grip the elongated structure, thereby preventing lateral displacement of the elongated structure.

[0007] Furthermore, in the upright and side-tilting support frame of the present invention, it is preferable that a support member having a cylindrical surface is arranged along the edge of the upper surface of the first support on the side facing the second support. With such a configuration, the long structure is more likely to tilt from an upright position on the first support towards the second support. Furthermore, in the upright and lateral tilting frame of the present invention, it is preferable that the support members are arranged in multiples with intervals between them in the extending direction of the edge. With such a configuration, if engaging portions are provided protruding from the bottom surface of the long structure and the engaging portions are arranged between adjacent support members, lateral displacement of the long structure in an upright state can be prevented. Furthermore, in the upright and lateral tilting frame of the present invention, it is preferable that a cushioning material is provided between the first support and the second support. With such a configuration, if a long structure in an inclined state slides downward from the second support, it can be caught by the cushioning material.

[0008] Furthermore, in the upright and sideways tilting frame of the present invention, it is preferable that a friction-reducing material is laid on the surface of the running rail. With such a configuration, the frictional force on the surface of the running rail is reduced, making it easier for the connecting member to move on the running rail. Furthermore, in the upright and sideways tilting frame of the present invention, it is preferable that a round steel bar extending in a direction perpendicular to the running direction of the connecting member is installed on the bottom surface of the connecting member. With such a configuration, the contact area of ​​the connecting member with the running rail is reduced, making it easier for the connecting member to move on the running rail. Furthermore, in the upright and side-lying support frame of the present invention, it is preferable to further include angle members that are fixed to the bottom surface of the long structure and engaged with the upper and rear surfaces of the support member. With such a configuration, it is possible to prevent the long structure from sliding off when it is tilted on the first support.

[0009] Furthermore, a second aspect of the present invention for solving the aforementioned problems is a method for tilting a long structure from an upright position to a sideways position using the upright tilting frame described in claim 1. This tilting method comprises a lifting step of lifting the long structure with a lifting machine, a placement step of placing the upright long structure on the first support, a first tilting step of feeding out the wire of the lifting machine and tilting the long structure with the first support as a fulcrum, a contact step of bringing the inclined side surface of the long structure into contact with the second support, and a second tilting step of further feeding out the wire of the lifting machine and tilting the long structure until it is in a sideways position with the second support as a fulcrum. The method is characterized in that, from the first tilting step to the second tilting step, the upright tilting frame is moved away from the lifting machine so that the center of gravity of the long structure descends vertically. According to the present invention's method for tilting a long structure, a single lifting machine can be used to tilt it on its side. Furthermore, since the center of rotation of the long structure shifts from the bottom supported by the first support to the side supported by the second support, the radius of rotation is shortened. This allows for a reduction in the height of the first support, making it possible to construct a compact frame. In addition, since the frame for tilting the long structure is moved away from the lifting machine so that the center of gravity of the long structure descends vertically (friction in the frame's movement allows for smooth sliding in the longitudinal direction of the long structure), the travel distance of the upper end of the long structure is shortened, and the horizontal travel distance is reduced, significantly reducing the horizontal movement of the lifting machine's boom. Therefore, the long structure can be tilted in a stable state.

[0010] Furthermore, a third aspect of the present invention for solving the aforementioned problems is a method for raising a long structure from a lying position using the upright-and-tilt frame described in claim 1. This upright method comprises an installation step of placing the side surface of the bottom of the long structure in a lying position on the second support; a rigging step of attaching the wire of a lifting machine to the top of the long structure; a first lifting step of winding up the wire of the lifting machine and raising the top of the long structure; a contact step of bringing the bottom surface of the lifted long structure into contact with the first support; and a second lifting step of further winding up the wire of the lifting machine and raising the long structure until it is upright. The method is characterized in that, from the first lifting step to the second lifting step, the upright-and-tilt frame is moved in a direction toward the lifting machine so that the center of gravity of the long structure rises vertically. According to the present invention's erection method, a long structure can be erected using a single lifting machine. Furthermore, the long structure rotates with a short radius of rotation from its lying position until it contacts the first support. This reduces the height of the first support, making it possible to construct a compact frame. In addition, since the erection and lying frame is moved closer to the lifting machine so that the center of gravity of the long structure rises vertically, the travel distance of the upper end of the long structure is shortened, and the horizontal travel distance is also shortened. Therefore, the long structure can be erected in a stable state. [Effects of the Invention]

[0011] According to the present invention, the frame for raising and lowering structures, the method for lowering structures, and the method for raising structures can be performed using a single lifting machine, and the horizontal movement of the lifting machine's boom can be reduced. [Brief explanation of the drawing]

[0012] [Figure 1] This is a side view showing a frame for upright and horizontal tilting according to the first embodiment of the present invention. [Figure 2] This is a plan view showing a frame for upright and horizontal tilting according to the first embodiment of the present invention. [Figure 3]It is a front view showing a stand-up and knockdown pedestal according to a first embodiment of the present invention. [Figure 4] It is a rear view showing a stand-up and knockdown pedestal according to a first embodiment of the present invention. [Figure 5] It is a perspective view showing a stand-up and knockdown pedestal according to a first embodiment of the present invention. [Figure 6] It is a side view showing a state in which a long structure is laid down using a stand-up and knockdown pedestal according to a first embodiment of the present invention. [Figure 7] It is a side view showing a stand-up and knockdown pedestal according to a second embodiment of the present invention. [Figure 8] It is a partial cross-sectional plan view showing a main part of a stand-up and knockdown pedestal according to a second embodiment of the present invention. [Figure 9] (a) is a cross-sectional view taken along line IXa-IXa of FIG. 8, and (b) is a cross-sectional view taken along line IXb-IXb of FIG. 8. [Figure 10] It is a side view showing a main part of a stand-up and knockdown pedestal according to a second embodiment of the present invention.

Embodiments for Carrying Out the Invention

[0013] The stand-up and knockdown pedestal and the knockdown method according to the first embodiment of the present invention will be described with reference to the accompanying drawings. In this embodiment, the case of disassembling the tower of a wind turbine for power generation will be taken as an example to describe the stand-up and knockdown pedestal and the knockdown method. Since the tower of a wind turbine for power generation has a large height dimension, it is composed of a plurality of long members connected together. Flanges are provided at the ends of the long members, and the flanges are bolted together for connection. FIG. 1 is a side view showing the stand-up and knockdown pedestal, FIG. 2 is a plan view, FIG. 3 is a front view, FIG. 4 is a rear view, and FIG. 5 is a perspective view.

[0014] As shown in Figure 1, the upright-to-side-down frame 1 is a frame for performing at least one of the following operations: a side-down operation to lay an upright long structure 2 on its side, and an upright operation to stand a side-down long structure upright. In this embodiment, the side-down operation to lay an upright long structure 2 on its side is performed. The long structure 2 is a long member that constitutes the tower of a wind turbine for power generation and has a cylindrical shape. Flanges 3 are provided at the upper and lower ends of the long structure 2 for connecting to other long members. The flanges 3 have a circular band shape and protrude outward from the outer circumferential surface of the long structure 2, and inward from the inner circumferential surface of the long structure 2. In this embodiment, the direction in which the long structure 2 is laid on its side is described as the front-to-back direction, and the direction perpendicular to the front-to-back direction is described as the left-to-right direction. When the long structure 2 is laid on its side, the side where the top tilts is the front, and the side where the bottom remains is the rear. As shown in Figures 1, 2, and 5, the upright and side-lying frame 1 comprises a first support 10, a second support 20, a connecting member 30, and a running rail 40.

[0015] The first support 10 is the part that supports the bottom surface of the upright elongated structure 2 (see Figures 1 and 2) and extends in the left-right direction. The first support 10 is composed of multiple H-shaped steel beams 11. Multiple H-shaped steel beams 11 (for example, four in this embodiment) are provided and arranged in two rows front to back and two tiers up to down. Reinforcing plates 12 are welded to the inside of the H-shaped steel beams 11, in contact with the web and the upper and lower flanges. The left-right length of the first support 10 (length of the H-shaped steel beams 11) is greater than or equal to the outer diameter of the flange 3 at the lower end of the elongated structure 2. The front end of the upper surface of the first support 10 becomes the first support point PA (see Figure 1). The first support point PA is the point that supports the bottom of the elongated structure 2 from the time the upright elongated structure 2 begins to tilt until it comes into contact with the second support 20.

[0016] The second support 20 is a part that supports the side of the inclined elongated structure. The second support 20 comprises a main body 21 and a protrusion 22. The main body 21 is composed of a plurality of H-shaped steel beams 23. A plurality of H-shaped steel beams 23 (for example, two in this embodiment) are provided and arranged in two upper and lower tiers. Reinforcement plates 24 are welded to the inside of the H-shaped steel beams 23, in contact with the web and the upper and lower flanges. The protrusion 22 is a part that prevents lateral displacement when the elongated structure 2 tilts, and protrudes upward from the upper surface of the main body 21. A pair of protrusions 22 are provided on the left and right sides with a gap between them, and are arranged to sandwich the elongated structure 2. In this embodiment, the pair of protrusions 22, 22 are positioned to abut against the side of the inclined elongated structure 2. In other words, the side of the inclined elongated structure 2 is stretched between the left and right protrusions 22, and a portion of the side of the elongated structure 2 curves downward between the pair of protrusions 22, 22. The protrusions 22 are made of H-shaped steel 25 provided on the upper surface of the main body 21. Reinforcing plates 26 are welded to the inside of the H-shaped steel 25, in contact with the web and the upper and lower flanges. The H-shaped steel 25 extends along the front-rear direction, and the side of the inclined elongated structure 2 abuts against the tip of the upper flange facing the adjacent H-shaped steel 25. The point of contact between the protrusions 22 and the side of the elongated structure 2 becomes the second support point PB (see Figure 1). The second support point PB is the point that supports the side of the elongated structure 2 from the time the side of the elongated structure 2 abuts against the protrusions 22 until it falls over on its side.

[0017] The connecting member 30 is a member that maintains the distance between the first support 10 and the second support 20. The connecting member 30 is a long member that extends in the front-rear direction and connects the first support 10 and the second support 20. The connecting member 30 is made of H-shaped steel 31, and the first support 10 and the second support 20 are fixed to its upper surface at a predetermined distance apart. A pair of connecting members 30 are provided on the left and right sides, and are arranged parallel to each other with a distance between them in the left-right direction. Specifically, the pair of connecting members 30, 30 are positioned at positions corresponding to both ends of the second support 20. The first support 10 and the second support 20 are stretched between the pair (two) connecting members 30, 30. The rear end of the connecting member 30 extends behind the first support 10, and the front end of the connecting member 30 extends forward of the second support 20. The overhang length of the connecting member 30 from the first support 10 to the rear, and the overhang length from the second support 20 to the front, are set to prevent the entire frame from tipping over during operation. For example, to determine the overhang length of the connecting member 30 from the second support 20 to the front, it is set to counteract the overturning moment caused by the horizontal force acting on the pivot point (second support point PB) of the long structure 2 of the second support 20, which is generated around the lower left point of the connecting member 30. In this embodiment, the forward overhang dimension of the front end of the connecting member 30 is greater than the rearward overhang dimension of the rear end. The connecting member 30 is installed so as to be able to travel on the running rail 40. The connecting member 30 is provided with a moving device (not shown). The moving device, for example, rotates a chain with a motor to move the connecting member 30 together with the first support 10 and the second support 20 on the running rail 40. A round steel bar 32 is installed on the underside of the connecting member 30. The round steel bar 32 extends in the left-right direction with a length dimension equivalent to the width dimension of the H-shaped steel bar 31 and is welded to the bottom surface of the connecting member 30. Two round steel bars 32 are provided at both the front end and the rear end of the connecting member 30. By providing the round steel bars 32 on the underside of the connecting member 30 in this way, the contact area with the running rail 40 is reduced, and friction with the running rail 40 is reduced, making it easier to move.

[0018] The running rail 40 is a member that guides the movement of the connecting member 30 and is provided along the direction of movement (front-to-back direction) of the connecting member 30. Two running rails 40 are provided spaced apart in the left-to-right direction. The running rail 40 is made of channel steel 41. The channel steel 41 is arranged so that the top is open and has a bottom and a pair of side walls. Friction reducing material 43 is laid on the surface of the bottom of the running rail 40. The friction reducing material 43 is made of a plate material with a fluororesin coating, such as Teflon (registered trademark), and is laid on the surface of the running rail 40.

[0019] Next, the method for tilting a structure on its side according to the first embodiment will be explained with reference to Figure 6. Figure 6 is a side view showing the state in which a long structure 2 is tilted on its side using the upright tilting frame 1 according to the first embodiment. This method of tilting a long structure 2 from an upright position to a horizontal position is a method of using a frame 1 for tilting a long structure 2 from an upright position to a horizontal position, and comprises a lifting step, a placement step, a first tilting step, a contact step, and a second tilting step.

[0020] The lifting process involves lifting the long structure 2 using a lifting machine 80. As shown in Figure 6, in the lifting process, the long structure 2 is lifted by the wire 82 of the boom 81 of the lifting machine 80 and moved onto the upright / side-tilting frame 1. At this time, the boom 81 is tilted at a predetermined angle. The placement process involves placing the upright elongated structure 2 onto the first support 10. During the placement process, a wire 82 is fed out so that the flange 3 at the lower end of the elongated structure 2 rests on the first support 10. At this time, the elongated structure 2 is placed so that the center of the bottom surface of the elongated structure 2 is shifted forward from the first support point PA (see Figure 1) on the upper surface of the first support 10. The center of gravity G (see Figure 6) in the height direction of the elongated structure 2 is located above the center of the bottom surface of the elongated structure 2.

[0021] The first tilting process involves tilting the elongated structure 2 by feeding out the wire 82 of the lifting machine 80 from a state where the elongated structure 2 is placed on the first support 10. In the first tilting process, the structure is tilted using the first support point PA on the first support 10 as the fulcrum. At this time, since the center of the bottom surface of the elongated structure 2 is positioned forward of the first support point PA on the upper surface of the first support 10 (see Figure 1), the tilting of the elongated structure 2 starts automatically simply by feeding out the wire 82. In the first tilting process, the center of gravity G of the elongated structure 2 is lowered vertically from the position of the center of gravity G of the elongated structure 2 in an upright state. Specifically, while raising the boom 81, the first support 10 is moved away from the lifting machine 80 together with the second support 20 and the connecting member 30. As a result, the top of the elongated structure 2 moves closer to the lifting machine 80, and the bottom of the elongated structure 2 moves away from the lifting machine 80, so that the center of gravity G of the elongated structure 2 can be lowered vertically. If there is no friction between the connecting member 30 and the running rail 40, the elongated structure 2 will rotate counterclockwise around the center of gravity G, and the center of gravity G will descend vertically, so the lower end of the elongated structure 2, the first support 10, the second support 20, and the connecting member 30 will move away from the lifting machine 80. In the first tilting step, the elongated structure 2 is tilted until its side surface contacts the second support 20. The contact process involves bringing the side surface of the inclined elongated structure 2 into contact with the second support 20. In the contact process, the side surface of the elongated structure 2 is brought into contact with the second support point PB (see Figure 1) at the upper end of the protrusion 22 of the second support 20. In Figures 1 and 6, the elongated structure in the state where its side surface is in contact with the second support 20 is shown by a dashed line and labeled "2a," and in Figure 6, the centroid of the elongated structure 2a is labeled "Ga."

[0022] The second tilting process involves feeding out the wire 82 of the lifting machine 80 from a state where the side of the long structure 2 is in contact with the second support 20, thereby tilting the long structure 2 until it is sideways. In the second tilting process, the long structure 2 is tilted using the second support point PB at the upper end of the protrusion 22 of the second support 20 as a fulcrum. In the second tilting process, the center of gravity G of the long structure 2 is lowered vertically from the position of the center of gravity Ga of the long structure 2a when its side is in contact with the second support 20. Specifically, similar to the first tilting process, the first support 10 is moved away from the lifting machine 80 as a whole, along with the second support 20 and the connecting member 30, while the boom 81 is raised. As a result, the top of the long structure 2 moves closer to the lifting machine 80 and the bottom of the long structure 2 moves away from the lifting machine 80, so that the center of gravity G of the long structure 2 can be lowered vertically. In Figures 1 and 6, the elongated structure in a horizontal position is shown by a dashed line and denoted with the symbol "2b," and in Figure 6, the center of gravity of the elongated structure 2b is denoted with the symbol "Gb." In addition, the boom and wires supporting the elongated structure 2b in a horizontal position are shown by dashed lines, with the boom denoted with the symbol "81b" and the wires with the symbol "82b." Furthermore, the boom and wires supporting the elongated structure 2 when it is simply laid on its side are shown separately by dashed lines, with the boom denoted with the symbol "81x" and the wires with the symbol "82x." The horizontal travel distance L1 (horizontal distance between the top of boom 81 and the top of boom 81b) of the top of the boom 81 when the long structure 2 is moved from an upright position to a lying-down position can be short. The horizontal travel distance L2 (horizontal distance between the top of boom 81 and the top of boom 81x) when the long structure 2 is simply laid on its side is equal to the length of the long structure 2, but with the upright / downside-laying frame 1 and the side-laying method of this embodiment, the horizontal travel distance L1 of the top of the boom 81 can be about half the horizontal travel distance L2.

[0023] As described above, with the side-tilting method of this embodiment, the center of gravity G of the long structure 2 descends vertically, so the distance traveled by the upper end of the long structure 2 is shortened, and the horizontal distance traveled is shortened, so the horizontal movement of the boom 81 of the lifting machine 80 can be greatly reduced. Therefore, the long structure 2 can be tilted on its side in a stable state. Furthermore, according to the upright-to-side-tilting frame 1 and the side-tilting method of this embodiment, a long structure 2 can be tilted sideways with a single lifting machine 80. This reduces construction costs and requires less workspace compared to conventional methods that use other lifting machines (sequential cranes). In addition, the construction procedure can be significantly simplified.

[0024] As the rotation center of the elongated structure 2 shifts from the bottom surface of the elongated structure 2, supported by the first support point PA of the first support 10, to the side surface, supported by the second support point PB of the protrusion 22 of the second support 20, the radius of rotation is shortened. This allows the height of the first support 10 to be reduced, making it possible to construct a compact frame. Furthermore, the elongated structure 2 rotates around its center of gravity G and tips over so that the center of gravity G descends vertically. As the frame slides smoothly along the longitudinal direction of the elongated structure 2 in this way, the horizontal travel distance L1 of the upper end of the elongated structure 2 is shortened, and because the horizontal travel distance is reduced, the horizontal movement of the boom 81 of the lifting machine 80 is significantly reduced. Specifically, as shown in Figure 6, the horizontal travel distance L2 of the top of the boom 81 can be reduced to about half of the horizontal travel distance L2 when the elongated structure 2 is simply tipped over, thus reducing the horizontal force acting on the lifting machine 80. This allows the boom 81 to move in a stable state, and also makes it easier to control the boom 81 to rotate and raise in accordance with the movement of the top of the long structure 2.

[0025] The upright and side-lying support frame 1 of this embodiment is equipped with two running rails 40, 40 arranged at a predetermined distance apart, which makes it easier for the first support 10, the second support 20, and the connecting member 30 to move. Furthermore, the first support 10 and the second support 20 can be provided with a width sufficient to stably support the long structure 2. Furthermore, since friction-reducing material 43 is laid on the surface of the running rail 40, the frictional force on the surface of the running rail 40 is reduced. This makes it easier for the connecting member 30 to move on the running rail. In addition, since round steel 32 is installed on the bottom surface of the connecting member 30, the contact area of ​​the connecting member 30 with the running rail 40 is reduced. This makes it even easier for the connecting member 30 to move on the running rail 40.

[0026] Since the protrusions 22 are provided on the upper surface of the second support 20 on both the left and right sides of the long structure 2, lateral displacement of the long structure 2 when it tilts can be prevented. Therefore, the long structure 2 can be prevented from falling from the second support 20. Furthermore, since the pair of protrusions 22, 22 are positioned to abut against the sides of the long structure 2, the pair of protrusions 22, 22 can grip the long structure 2. Therefore, lateral displacement and sliding down of the long structure 2 can be prevented.

[0027] Next, the uprighting method according to the present invention will be described with reference to Figure 6. This uprighting method is a method for raising a long structure 2 from a lying position using an upright-side-down frame 1, and comprises an installation step, a rigging step, a first lifting step, a contact step, and a second lifting step. The installation process involves placing the side of the bottom of the long structure 2b, which is lying on its side, onto the second support 20. During the installation process, the side of the long structure 2b is resting on a pair of protrusions 22, 22. At this time, the first support 10, the second support 20, and the connecting member 30 are positioned to the right of the running rail 40, away from the lifting machine 80. The rigging process involves attaching the wire rope 82b of the lifting machine 80 to one end of the long structure 2b in a lying position (specifically, the end furthest from the second support 20). During the rigging process, the boom 81b of the lifting machine 80 is tilted at a predetermined angle towards the upright / lying-down frame 1.

[0028] The first lifting process involves winding up the wire 82b of the lifting machine 80 to lift the upper part of the elongated structure 2b. In the first lifting process, the elongated structure 2 rotates with the second support point PB at the upper end of the protrusion 22 of the second support 20 as a fulcrum, and its top is lifted. In the first lifting process, the center of gravity Gb of the elongated structure 2 is raised vertically. Specifically, while tilting the boom 81 backward, the first support 10 is moved in a direction that brings it closer to the lifting machine 80 together with the second support 20 and the connecting member 30. As a result, the top of the elongated structure 2 moves away from the lifting machine 80, and the bottom of the elongated structure 2b moves closer to the lifting machine 80, so that the center of gravity Gb of the elongated structure 2 can be raised vertically. Furthermore, if there is no friction between the connecting member 30 and the running rail 40, the elongated structure 2 will rotate clockwise around its center of gravity G, causing the center of gravity G to rise vertically. As a result, the lower end of the elongated structure 2, the first support 10, the second support 20, and the connecting member 30 will move toward the lifting machine 80. In the first lifting process, the elongated structure 2 is lifted until its bottom contacts the first support 10 (state of elongated structure 2a). The contact process is the process of bringing the bottom surface of the lifted elongated structure 2a into contact with the first support 10. In the contact process, the bottom surface of the elongated structure 2a is brought into contact with the first support point PA on the first support 10 in a tilted state.

[0029] The second lifting process involves further winding up the wire 82 of the lifting machine 80 to raise the long structure 2 until it is upright. In the second lifting process, the long structure 2 rotates with the first support point PA at the upper end of the first support 10 as a fulcrum, and its top is lifted. In the second lifting process, the center of gravity Ga of the long structure 2 is raised vertically. Specifically, while tilting the boom 81 further backward, the first support 10 is moved in a direction that brings it closer to the lifting machine 80 together with the second support 20 and the connecting member 30. As a result, the top of the long structure 2 moves away from the lifting machine 80 and the bottom of the long structure 2a moves closer to the lifting machine 80, so that the center of gravity Ga of the long structure 2 can be raised vertically. In the second lifting process, the long structure 2 is raised until it is upright vertically.

[0030] As described above, according to the erection method of this embodiment, the elongated structure 2 rotates with a short radius of rotation from a lying position until it contacts the first support 10. This reduces the height of the first support 10, making it possible to construct a compact frame. In addition, since the center of gravity G of the elongated structure 2 rises vertically, the distance traveled by the upper end of the elongated structure 2 is shortened, and the horizontal distance traveled is also shortened. Therefore, the elongated structure 2 can be erected in a stable state. Furthermore, according to the erection method of this embodiment, a long structure 2 can be erected with a single lifting machine 80. This reduces construction costs and requires less workspace compared to conventional methods that use other lifting machines (sequential cranes). In addition, the construction procedure can be significantly simplified.

[0031] The elongated structure 2 rotates with a short radius of rotation from its lying position until it contacts the first support 10. This reduces the distance traveled by the upper end of the elongated structure, thus reducing its horizontal movement distance. Therefore, in the uprighting method, similar to the lying-down method, the horizontal movement distance L1 of the top of the boom 81 can be reduced to about half of the horizontal movement distance L2 of the top of the boom 81 when the elongated structure 2 is simply upright, thereby reducing the horizontal force acting on the lifting machine 80. This allows the boom 81 to move in a stable state and facilitates control of the boom 81 to rotate and raise in accordance with the movement of the top of the elongated structure 2.

[0032] Next, the upright and side-tilting frame 5 according to the second embodiment of the present invention will be described with reference to the attached drawings. The upright and side-tilting frame 5 of the second embodiment is equipped with a mechanism 50 to prevent the long structure 2 from slipping down and a support mechanism 60 in addition to the upright and side-tilting frame 1 of the first embodiment. Figure 7 is a side view of the upright and side-tilting frame of the second embodiment, Figure 8 is a partial cross-sectional plan view, Figure 9 is a cross-sectional view of the main part, and Figure 10 is a side view of the main part. As shown in Figure 7, the upright and side-lying frame 5 comprises a first support 10, a second support 20, a connecting member 30, a running rail 40, a slip-down prevention mechanism 50, and a support mechanism 60. In the second embodiment, the first support 10 is constructed by stacking H-shaped steel beams 11 in three layers, and the main body 21 of the second support 20 is constructed by stacking H-shaped steel beams 23 in three layers. This raises the support position of the long structure 2, preventing the flange 3 from interfering with the support mechanism 60 when the long structure 2 tilts.

[0033] The slip-down prevention mechanism 50 prevents the long structure 2 from slipping downward from the upright position until it comes into contact with the second support 20. As shown in Figures 8 and 9, the slip-down prevention mechanism 50 includes a support member 51 and a locking member 52. The support member 51 is a part that rotatably supports the elongated structure 2 and is provided along the edge of the upper surface of the first support 10 on the side of the second support 20. The support member 51 is composed of a cylindrical body 53 having a cylindrical surface and a filler material 54. The cylindrical body 53 is made of steel pipe and is attached to the front end of the upper surface of the first support 10. The cylindrical body 53 extends in the left-right direction (along the edge of the upper surface of the first support 10 on the side of the second support 20). A pair of cylindrical bodies 53 are provided at positions that support the left and right edges of the flange 3. The pair of cylindrical bodies 53, 53 are arranged at a predetermined distance apart in the left-right direction at each of the left and right edges of the flange 3. One of the pair of cylindrical bodies 53, 53 supports the outer peripheral edge of the flange 3, and the other cylindrical body 53 supports the inner peripheral edge of the flange 3 (see Figure 8). Reinforcing bars 55 are laid around the front and rear of the cylindrical body 53 and welded together with the reinforcing bars 55 to the upper surface of the H-shaped steel 11 that constitutes the first support 10 (see Figure 9(a)). The filler material 54 is filled inside the cylindrical body 53 to reinforce the cylindrical body 53, and is made of, for example, mortar.

[0034] The locking member 52 is a member for locking the elongated structure 2 to the support member 51 and is attached to the lower surface of the flange 3. The locking member 52 is made of an angle material 56 with an L-shaped cross-section and is fixed to the flange 3 via bolts 57 and nuts 58. The angle material 56 is positioned to cover the upper and rear parts of the support member 51 and is locked to the upper and rear surfaces of the support member 51. The horizontal plate portion covering the upper part is fixed to the lower surface of the flange 3, and the vertical plate portion covering the rear part hangs down from the rear end of the horizontal plate portion. The angle material 56 extends in the left-right direction, and both longitudinal ends of the angle material 56 cover the support member 51. The middle part of the angle material 56 covers the space between the pair of cylindrical bodies 53, 53. A bolt 57 is attached from below to the horizontal plate portion of the middle part of the angle material 56 and is screwed into a nut 58 at the upper part of the flange 3. The head of the bolt 57 protrudes downward from the horizontal plate portion and is located in the space between the pair of cylindrical bodies 53, 53. In other words, the head of the bolt 57 protrudes downward from the underside of the flange 3 and becomes an engaging portion that abuts against the cylindrical body 53 when the elongated structure 2 moves in the left-right direction.

[0035] With the slip-down prevention mechanism 50 configured as described above, as shown in Figure 10, when the elongated structure 2 tilts, the angle material 56 rotates along the circumferential surface of the cylindrical body 53. At this time, the weight of the elongated structure 2 generates stress on the elongated structure 2 and the flange 3 that causes them to slide downwards and forwards. However, since the vertical plate portion of the angle material 56 is engaged with the cylindrical body 53, the slip-down of the elongated structure 2 can be prevented. Furthermore, since the head of the bolt 57 protrudes downward from the horizontal plate portion and is located in the space between the pair of cylindrical bodies 53, 53, it comes into contact with the cylindrical body 53 and engages when the elongated structure 2 moves in the left-right direction. This prevents lateral displacement of the elongated structure 2.

[0036] The support mechanism 60 is a buffer material 61 that catches the long structure 2 when it slides downward and rearward after it has come into contact with the second support 20. The long structure 2 is held between the protrusions 22, 22 of the second support 20, making it difficult for it to slide downward and rearward. In other words, the support mechanism 60 supports the long structure 2 to prevent it from falling too far if it does slide down. The support mechanism 60 is provided between the first support 10 and the second support 20. The buffer material 61 includes, for example, sandbags 62 and a support plate 63. The sandbags 62 are provided as cushioning material. The support plate 63 is the part that supports the sandbags 62 and is stretched over the left and right connecting members 30, 30. The support plate 63 is made of steel plates or covering plates. Note that if a covering plate is used as the support plate 63, the sandbags 62 may not be provided.

[0037] The second embodiment of the standing / tilting support frame 5 provides the following additional effects in addition to those obtained in the first embodiment. Specifically, the standing / tilting support frame 5 prevents the long structure 2 from sliding downward and forward, and from sliding laterally, from the standing position until it contacts the second support 20. Furthermore, even if the long structure 2 slides down after contacting the second support 20, the cushioning material 61 can catch it to prevent it from falling too far.

[0038] While embodiments for carrying out the present invention have been described above, the present invention is not limited to the above embodiments, and the design can be modified as appropriate without departing from the spirit of the invention. For example, in the above embodiment, the side surface of the inclined elongated structure 2 is placed over the pair of protrusions 22, 22, but the invention is not limited to this. In the normal position, the side surface of the elongated structure 2 does not come into contact with the protrusions 22, and it is placed on the upper surface of the main body 21, with the pair of protrusions 22, 22 positioned on both the left and right sides away from the side surface of the elongated structure 2. Even with such a configuration, the protrusions 22 engage with the elongated structure 2 when it shifts laterally in the left-right direction, so the protrusions 22 can restrict the movement of the elongated structure 2. [Explanation of Symbols]

[0039] 1. Stand for upright and horizontal positioning 2. Long structures 5. Stand for upright and horizontal positioning 10 First support 20 Second support 22 Convex part 30 Connecting member 32 Round steel 40 Running Rails 43 Friction-reducing material 51 Support member 52 Locking member 53 Cylindrical body 54 Filling material 56 Angle material 61 Cushioning material 62 Sandbags 63 Support plate 80 Lifting Machinery G center of gravity

Claims

1. A frame for tilting and raising a long structure, for performing at least one of the following operations: tilting a long structure that is standing upright and raising a long structure that has been tilted on its side, A first support that supports the bottom surface of the long structure in an upright position, A second support that supports the side of the elongated structure which is tilted from a state supported by the first support, The system includes a connecting member that maintains the distance between the first support and the second support, The structure has a configuration in which, when the long structure tilts, the support points of the long structure switch from being supported at the bottom by the first support to being supported at the side by the second support, When the support point switches, the upright / downside-lying frame, consisting of the first support, the second support, and the connecting member, is provided to be movable as a single unit along the longitudinal direction of the long structure in its sideways state. A frame for standing upright and lying down, characterized by the above features.

2. The system further comprises two running rails provided along the direction of movement of the aforementioned connecting member, Two of the aforementioned connecting members are provided, with one connecting member movably positioned on one of the running rails, and the other connecting member movably positioned on the other running rail. The first support and the second support are stretched between the two connecting members. The standing / tilting frame according to feature 1.

3. The second support is provided with a pair of protrusions that prevent lateral displacement of the elongated structure when it tilts. The standing / tilting frame according to feature 1.

4. The pair of protrusions are positioned to contact the side surface of the elongated structure. The standing / tilting frame according to feature 3.

5. A frame for tilting and raising a long structure, for performing at least one of the following operations: tilting a long structure that is standing upright and raising a long structure that has been tilted on its side, A first support that supports the bottom surface of the long structure in an upright position, A second support that supports the side surface of the long structure in an inclined state, The system includes a connecting member that maintains the distance between the first support and the second support, The first support, the second support, and the connecting member are provided so as to be movable along the longitudinal direction of the elongated structure when it is lying on its side. A support member having a cylindrical surface is positioned along the edge of the upper surface of the first support on the side of the second support. A frame for standing upright and lying down, characterized by the above features.

6. Multiple support members are arranged at intervals in the direction of extension of the edge portion. The standing / tilting frame according to feature 5.

7. A frame for tilting and raising a long structure, for performing at least one of the following operations: tilting a long structure that is standing upright and raising a long structure that has been tilted on its side, A first support that supports the bottom surface of the long structure in an upright position, A second support that supports the side surface of the long structure in an inclined state, The system includes a connecting member that maintains the distance between the first support and the second support, The first support, the second support, and the connecting member are provided so as to be movable along the longitudinal direction of the elongated structure when it is lying on its side. A cushioning material is provided between the first support and the second support. A frame for standing upright and lying down, characterized by the above features.

8. A friction-reducing material is laid on the surface of the aforementioned running rail. The standing / tilting frame according to feature 2.

9. A frame for tilting and raising a long structure, for performing at least one of the following operations: tilting a long structure that is standing upright and raising a long structure that has been tilted on its side, A first support that supports the bottom surface of the long structure in an upright position, A second support that supports the side surface of the long structure in an inclined state, A connecting member that maintains the distance between the first support and the second support, The system includes two running rails provided along the direction of movement of the connecting member, The first support, the second support, and the connecting member are provided so as to be movable along the longitudinal direction of the elongated structure when it is lying on its side. Two of the aforementioned connecting members are provided, with one connecting member movably positioned on one of the running rails, and the other connecting member movably positioned on the other running rail. The first support and the second support are stretched between the two connecting members, A round steel rod extending in a direction perpendicular to the direction of travel of the connecting member is installed on the bottom surface of the connecting member. A frame for standing upright and lying down, characterized by the above features.

10. The system further comprises angle members that are fixed to the bottom surface of the long structure and engaged with the upper and rear surfaces of the support member. The standing / tilting frame according to feature 5.

11. A method for tilting a long structure from an upright position to a horizontal position using the upright-to-horizontal tilting frame described in claim 1, A lifting process in which the aforementioned long structure is lifted using a lifting machine, A placement step of placing the elongated structure in an upright position onto the first support, A first tilting step involves feeding out the wire of the lifting machine and tilting the long structure using the first support as a fulcrum, A contact step in which the side surface of the inclined elongated structure is brought into contact with the second support, Furthermore, the system includes a second tilting step in which the wire of the lifting machine is fed out and the elongated structure is tilted so that it is horizontal, using the second support as a fulcrum. In the first tilting step and the second tilting step, the upright and sideways tilting frame is moved away from the lifting machine so that the center of gravity of the long structure descends vertically. A method for laying something on its side, characterized by the features described above.

12. A method for raising a long structure from a lying position using the standing / lying frame described in claim 1, Installation step of placing the side of the bottom of the long structure in a lying position on the second support, A lifting process in which the wires of a lifting machine are attached to the upper part of the aforementioned long structure, The first lifting process involves winding up the wire of the lifting machine and raising the upper part of the long structure, A contact step in which the bottom surface of the lifted elongated structure is brought into contact with the first support, Furthermore, the system includes a second lifting step in which the wire of the lifting machine is wound up and the long structure is raised until it is upright. In the first lifting process and the second lifting process, the upright and sideways tilting frame is moved in a direction that brings it closer to the lifting machine so that the center of gravity of the long structure rises vertically. A method for standing up characterized by the following features.

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