JP2017137723A - Cylindrical structure and tower structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylindrical structure that simplifies a field work and has a connecting structure capable of easily correcting error on the construction accuracy, and provide a tower structure using the same.SOLUTION: A cylindrical structure is characterized by: being fixed to a first cylindrical member and a second cylindrical member while being inserted between the end surface of the first cylindrical member and the end surface of the second cylindrical member when connecting the first cylindrical member and the second cylindrical member in the serial direction; also, being fixed to a third cylindrical member and a fourth cylindrical member while being inserted between the end surface of the third cylindrical member and the end surface of the fourth cylindrical member when connecting the third cylindrical member and the fourth cylindrical member in the serial direction; and including a first connection plate shared between a first cylindrical structure and a second cylindrical structure when the first cylindrical structure constituted of the first cylindrical member and the second cylindrical member and the second cylindrical structure constituted of the third cylindrical member and the fourth cylindrical member are concatenated in a parallel direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cylindrical structure and a tower structure.

  Conventionally, tower-like structures that support antennas such as parabolic antennas and supporting objects such as high-voltage electric wires at high places have been proposed. For example, as shown in Patent Document 1, the tower-like structure is a combination of a steel frame and a truss structure. As shown in Patent Documents 2 and 3, a columnar member or a cylindrical member is moved upward from the ground. Laminates have been proposed.

  For example, in a tower structure having a height of, for example, 60 m to 100 m and a severe limit on the allowable displacement at the tip, such as a radio tower, a plurality of cylindrical members are connected to form one tower structure. There are many cases to do. Here, as a connection of a some cylindrical member, there exist a connection of the cylindrical member regarding a serial direction (up-down direction), and a connection of the cylindrical member regarding a parallel direction (horizontal direction). Here, for connecting the cylindrical members in the serial direction, for example, there is a method of flange-joining the end faces of the cylindrical members. For connecting the cylindrical members in the horizontal direction, for example, on the side surfaces of the cylindrical members. There is a method of linking and joining beams.

JP 09-291968 A JP2013-60772A JP2013-53424A

  However, in the connection of the cylindrical members in the parallel direction, when adopting a method of linking the beams on the side surfaces of the cylindrical members and joining them, it is necessary to join the beams to the side surfaces of the cylindrical members with bolts or the like. For example, when a beam is joined at a high place, a large-scale scaffold or the like is required, and the construction becomes complicated.

  Therefore, the present invention has been made in view of the above, and its purpose is to provide a cylindrical structure having a connecting structure that is easy for on-site work and that can easily correct errors in construction accuracy, and the like. It is to provide a tower structure used.

In order to solve the above-described problems and achieve the object, the cylindrical structure according to the present invention is:
(1) A cylindrical structure in which a plurality of cylindrical members are connected in a series direction and a parallel direction, and the first cylindrical member and the second cylindrical member are connected in the serial direction. A third cylinder fixed to the first cylindrical member and the second cylindrical member in a state of being inserted between the end surface of the cylindrical member and the end surface of the second cylindrical member. When the cylindrical member and the fourth cylindrical member are connected in series, the third cylindrical member is inserted between the end surface of the third cylindrical member and the end surface of the fourth cylindrical member. The first cylindrical structure, the third cylindrical member, and the first cylindrical member, which are fixed to the cylindrical member and the fourth cylindrical member, and are constituted by the first cylindrical member and the second cylindrical member. Shared between the first cylindrical structure and the second cylindrical structure when the second cylindrical structure formed by the fourth cylindrical member is connected in the parallel direction. Characterized in that it comprises a first connecting plate for.

  (2) Moreover, in the cylindrical structure according to (1), the first connecting plate is configured such that the fifth cylindrical member and the sixth cylindrical member are connected to each other in the series direction. The fifth cylindrical member is fixed to the fifth cylindrical member and the sixth cylindrical member in a state of being inserted between the end surface of the cylindrical member and the end surface of the sixth cylindrical member. When the third cylindrical structure, the first cylindrical structure, and the second cylindrical structure formed by the sixth cylindrical member are connected in parallel, the first cylinder It is shared among the cylindrical structure, the second cylindrical structure, and the third cylindrical structure.

  (3) In the cylindrical structure according to (2), the first connecting plate includes the first cylindrical structure, the second cylindrical structure, and the third cylindrical structure. An opening substantially corresponding to the opening shape of the end face of the object is provided.

  (4) Moreover, in the cylindrical structure of said (1), when connecting the said 3rd cylindrical member and the said 4th cylindrical member in a serial direction, the end surface of the said 3rd cylindrical member, The fifth cylindrical member and the sixth cylinder are fixed to the third cylindrical member and the fourth cylindrical member in a state of being inserted between end faces of the fourth cylindrical member. The fifth cylindrical member and the sixth cylindrical member are inserted between the end surface of the fifth cylindrical member and the end surface of the sixth cylindrical member when the cylindrical members are connected in series. When the second cylindrical structure is connected to the third cylindrical structure formed by the fifth cylindrical member and the sixth cylindrical member in a parallel direction. The second connecting plate shared between the second cylindrical structure and the third cylindrical structure, the fifth cylindrical member, and the sixth cylindrical member are connected in series. Direction Fixed to the fifth cylindrical member and the sixth cylindrical member in a state of being inserted between the end surface of the fifth cylindrical member and the end surface of the sixth cylindrical member when connected to And between the end surface of the first cylindrical member and the end surface of the second cylindrical member when the first cylindrical member and the second cylindrical member are connected in series. When fixed to the first cylindrical member and the second cylindrical member in a state where the third cylindrical structure and the first cylindrical structure are connected in a parallel direction. And a third connecting plate shared between the third cylindrical structure and the first cylindrical structure.

  (5) In the cylindrical structure according to (4), the first connecting plate is inserted into the portion inserted into the first cylindrical structure and the second cylindrical structure. A step is provided between the portions.

  (6) Moreover, in the cylindrical structure according to the above (4) or (5), the first connecting plate has an opening shape of end faces of the first cylindrical structure and the second cylindrical structure. The second connecting plate has an opening substantially corresponding to the opening shape of the end surfaces of the second cylindrical structure and the third cylindrical structure. The third connecting plate is provided with an opening substantially corresponding to the opening shape of the end surface of the third cylindrical structure and the first cylindrical structure. Features.

  (7) Moreover, the tower-like structure which concerns on this invention includes any one cylindrical structure in any one of said (1)-(6), It is characterized by the above-mentioned.

  The cylindrical structure according to the present invention and the tower-like structure using the same have the advantages that the field work is simple and that errors in construction accuracy can be easily corrected.

FIG. 1 is an overall view of a tower-like structure using a cylindrical structure according to the embodiment. FIG. 2 is a plan view of a tower-like structure using the cylindrical structure according to the embodiment. FIG. 3 is a diagram illustrating a connecting plate according to the first embodiment. FIG. 4 is an assembled perspective view of the cylindrical structure according to the first embodiment. FIG. 5 is a cross-sectional view showing the cylindrical structures connected using the connecting plate in the first embodiment. FIG. 6 is a cross-sectional view showing the cylindrical structures connected using the connecting plate in the first embodiment. FIG. 7 is a detailed view of a region R1 in FIG. FIG. 8 is a diagram illustrating a connecting plate according to the second embodiment. FIG. 9 is an assembled perspective view of the cylindrical structure in the second embodiment. FIG. 10 is a cross-sectional view illustrating the cylindrical structures connected using the connecting plates in the second embodiment. FIG. 11 is a cross-sectional view illustrating cylindrical structures connected using a connecting plate in the second embodiment. FIG. 12 is a detailed view of a region R2 in FIG. FIG. 13 is a diagram illustrating a connecting plate according to the third embodiment. FIG. 14 is an assembled perspective view of the cylindrical structure in the third embodiment. FIG. 15 is a cross-sectional view illustrating the cylindrical structures connected using the connecting plates in the third embodiment. FIG. 16 is a cross-sectional view illustrating cylindrical structures connected using a connecting plate in the third embodiment. FIG. 17 is a detailed view of a region R3 in FIG. FIG. 18 is a detailed view of a region R4 in FIG.

  Hereinafter, a cylindrical structure according to an embodiment and a tower-like structure using the same will be described in detail with reference to the drawings. In addition, this invention is not limited by the content described in embodiment described below. The constituent elements described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the structures described below can be combined as appropriate. Various omissions, substitutions, or changes in the configuration can be made without departing from the scope of the present invention.

  FIG. 1 is an overall view of a tower-like structure using a cylindrical structure according to the embodiment. FIG. 2 is a plan view of a tower-like structure using the cylindrical structure according to the embodiment. As shown in FIGS. 1 and 2, the tower-like structure 1 is installed with respect to the ground GL, and the cylindrical structures 2 </ b> A, 2 </ b> B, 2 </ b> C, the support structures 3 </ b> A, 3 </ b> B, 3 </ b> C, The connecting plate 5 is provided.

  The tower-like structure 1 illustrated in FIGS. 1 and 2 is an antenna tower that has an overall height of about 90 m and supports an antenna 100 that is a support object. However, the tower-like structure 1 does not have only the antenna 100 as a support object, but can also support equipment related to the antenna and equipment related to the tower, such as lightning protection equipment and aviation obstacle lights.

  Cylindrical structures 2A to 2C (hereinafter, cylindrical structures 2A to 2C are not distinguished or integrated, and are simply referred to as “cylindrical structure 2”) are supported by support structures 3A to 3C (hereinafter referred to as support structures). 3A to 3C are not distinguished or integrated, and are also simply referred to as “support structure 3”), and the antenna 100 is attached to a high place. The tower-like structure 1 includes three cylindrical structures 2A to 2C.

  As shown in FIG. 2, the cylindrical structure 2 is erected from the ground GL so as to be separated from each other, and the lower end portion is fixed to the foundation structure 6. Here, the foundation structure 6 is made of, for example, reinforced concrete, and includes a main body portion 61 and a fixing portion 62. The main body 61 is a foundation of the tower-like structure 1 and is embedded in the ground GL.

  The fixed part 62 is equally spaced in the circumferential direction (120 degrees) around a reference point (reference line (a dashed line shown in FIG. 1)) O in a horizontal plane including a horizontal direction orthogonal to the vertical direction of the tower-like structure 1. The lower end portions of the cylindrical structures 2 </ b> A to 2 </ b> C are respectively fixed.

  As shown in FIG. 1, the tubular structure 2 is partitioned into an inclined tubular portion 21 and a vertical tubular portion 22 upward from the ground GL. In the tubular structure 2, a constricted portion 23 is formed at a portion where the inclined tubular portion 21 changes to the vertical tubular portion 22. That is, the constricted portion 23 is formed between the inclined cylindrical portion 21 and the vertical cylindrical portion 22. Therefore, the cylindrical structures 2A to 2C are bent into a dogleg shape when viewed from a direction orthogonal to the vertical direction. The inclined cylindrical portions 21 of the cylindrical structures 2A to 2C approach each other as they move upward from the ground GL. It is preferable that the ratio of the length in the vertical direction between the inclined cylindrical portion 21 and the vertical cylindrical portion 22 is about 2: 1 to 4: 1.

  As shown in FIG. 2, the inclined cylindrical portions 21 of the cylindrical structures 2 </ b> A to 2 </ b> C have lower end portions, that is, lower end portions of the respective cylindrical structures 2 </ b> A to 2 </ b> C at equal intervals (120 degrees). ). The inclined cylindrical portions 21 gradually approach each other toward the reference point O when the middle from the lower end to the upper end is viewed from the vertical direction. Here, each cylindrical structure 2A to 2C has the same structure although the angle from the reference point O is different when viewed from the vertical direction.

  The cylindrical structures 2A to 2C are configured by connecting a plurality of cylindrical members 24 in the series direction. In addition, in order to avoid the complexity of a reference symbol, the cylindrical member 24 is shown here using the same reference symbol. The cylindrical member 24 is a steel pipe having a circular cross-sectional outer shape. For example, in the case of the tower-like structure 1 having a length of about 10 m and an overall height of about 90 m, each cylindrical member 24 has about 10 cylindrical members 24 in series. Concatenated in the direction. In addition, the cross-sectional outer peripheral shape of the cylindrical member 24 is not limited to a circle, and may be an ellipse or a polygon. The fact that the cylindrical members 24 are connected in the serial direction means that the annular end surfaces facing each other of the connected cylindrical members 24 are joined.

  In the cylindrical structures 2 </ b> A to 2 </ b> C in the vertical cylindrical portion 22, a plurality of cylindrical members 24 are connected in the series direction and the parallel direction via the connecting plate 5. Since the connecting plate 5 has a configuration that will be described in detail later, a connection structure is realized in which on-site work is simple and an error in construction accuracy can be easily corrected. In addition, although the connection method using the connection board 5 can be applied to all the connection locations of the cylindrical member 24 in the vertical cylindrical portion 22, the connection method using the connection plates is not necessarily applied to all connection locations. There is no need. According to the required level of rigidity of the entire tower-like structure 1, a connection method using the connecting plate 5 can be applied at a necessary place.

  In the cylindrical structures 2A to 2C, the internal space portion that communicates from the lower end portion to the upper end portion in the vertical direction is formed by communicating the internal space portion of the cylindrical member 24 in the vertical direction. . As for cylindrical structure 2A-2C, the 1st opening part 25 is each formed in the ground GL side. The 1st opening part 25 enables an operator to go in and out of the internal space part of each cylindrical structure 2A-2C from the ground GL.

  In addition, the cylindrical structures 2 </ b> A to 2 </ b> C each have a second opening 26 corresponding to the support structure 3. That is, the 2nd opening part 26 in this embodiment is each formed corresponding to each support structure 3A-3C in one cylindrical structure 2A-2C. The 2nd opening part 26 enables a worker to enter / exit each support structure 3A-3C from the internal space part of cylindrical structure 2A-2C.

  Since the first opening portion 25 and the second opening portion 26 communicate with each other through the internal space portion, the worker can attach the lifting ladder used by the worker to the internal space portion so that the worker can support the ground GL and the support structure. You can go back and forth between things 3.

  In addition, in the internal space of the cylindrical structures 2A to 2C, a cable for supplying power or transmitting a signal to a device including the antenna 100 installed in the support structures 3A to 3C is provided. Can also be used. By arranging the cables in the internal space portions of the cylindrical structures 2A to 2C, the influence of the external environment on the cables is suppressed, and the durability of the cables can be improved. Moreover, since the worker can perform maintenance of the cable and the like while being in the internal space of the cylindrical structures 2A to 2C, the work is facilitated and the safety is improved.

  Hereinafter, the Example of the cylindrical structure applied to the tower-like structure 1 which connected the some cylindrical member to the serial direction and the parallel direction is described. In the embodiment of the cylindrical structure described below, the region A in the tower-like structure 1 shown in FIG. 1 is extracted and described. Therefore, each of the embodiments described below can be applied to the region A in the tower structure 1. Moreover, since the tower-like structure 1 includes the connecting plate 5 in addition to the region A, the following embodiments can be applied to the other connecting plates 5 and the peripheral structure thereof.

Example 1
FIGS. 3-7 is a figure which shows Example 1 of the cylindrical structure which connected the some cylindrical member to the serial direction and the parallel direction. FIG. 3 is a view showing a connecting plate in the first embodiment, and FIG. 4 is an assembly perspective view of the cylindrical structure in the first embodiment. 5 and 6 are cross-sectional views showing the cylindrical structures connected using the connecting plate in the first embodiment. 5 is a cross-sectional view of the cross section taken along line CC in FIG. 6 as viewed from above. FIG. 6 is a cross-sectional view of the cross section along line BB in FIG. FIG. 7 is a detailed view of a region R1 in FIG.

  As illustrated in FIG. 3, the connecting plate 511 according to the first embodiment includes three openings, a first opening 511a, a second opening 511b, and a third opening 511c. As shown in FIG. 4, the first to sixth cylindrical members 24 a to 24 f are connected to each other in the series direction and the parallel direction via a connecting plate 511.

  As shown in FIG. 5, the shape of the first opening 511a substantially matches the opening shape of the end surface of the first tubular member 24a, and the shape of the second opening 511b is the third tube. The shape of the third opening 511c substantially matches the opening shape of the end surface of the fifth cylindrical member 24e. Although not shown in the figure, as a result, the shapes of the first opening 511a, the second opening 511b, and the third opening 511c are the second cylindrical member 24b and the fourth cylindrical shape, respectively. This substantially matches the opening shapes of the end surfaces of the member 24d and the sixth cylindrical member 24f. Typically, the opening shapes of the end surfaces of the first to sixth cylindrical members 24a to 24f are the same, and in the present embodiment also, the first opening 511a, the second opening 511b, and the third The openings 511c have the same shape.

  The shape substantially corresponding to the opening shape of the end surface is that a flange FL is provided on the end surface of the first to sixth cylindrical members 24a to 24f, and whether this flange FL is an outer flange or not. It is considered that the shapes of the first opening 511a, the second opening 511b, and the third opening 511c should be adjusted as appropriate depending on whether it is a flange. In addition, in Example 1 shown by FIGS. 3-7, the shape which employ | adopted the inner flange is assumed.

  Bolt holes H are provided around the edges of the first opening 511a, the second opening 511b, and the third opening 511c along the edge of the opening. These bolt holes H are through holes into which bolts b are inserted when the end surfaces of the first to sixth cylindrical members 24a to 24f are flange-joined.

  The distance between centers of the first opening 511a, the second opening 511b, and the third opening 511c is the first to sixth when the first to sixth cylindrical members 24a to 24f are connected in parallel. This corresponds to the interaxial distance of the cylindrical members 24a to 24f. Accordingly, the first opening 511a is matched to the design value of the inter-axis distance of the first to sixth cylindrical members 24a to 24f when the first to sixth cylindrical members 24a to 24f are connected in parallel. The distance between the centers of the second opening 511b and the third opening 511c can be determined.

  As shown in FIGS. 6 and 7, the connecting plate 511 is connected to the end surface of the fifth cylindrical member 24 e and the fifth cylindrical member 24 e when the fifth cylindrical member 24 e and the sixth cylindrical member 24 f are connected in series. 6 is inserted between the end surfaces of the cylindrical members 24f. In this state, the fifth cylindrical member 24e and the sixth cylindrical member 24f are flange-joined, whereby the connecting plate 511 is connected to the fifth cylindrical member 24e and the sixth cylindrical member 24f. Fixed.

  Although not shown in detail, similarly, the connecting plate 511 is connected to the end surface of the third cylindrical member 24c when the third cylindrical member 24c and the fourth cylindrical member 24d are connected in series. It is inserted between the end surface of the fourth cylindrical member 24d. In this state, the third cylindrical member 24c and the fourth cylindrical member 24d are flange-joined, whereby the connecting plate 511 is connected to the third cylindrical member 24c and the fourth cylindrical member 24b. Fixed. Further, the connecting plate 511 has an end surface of the first cylindrical member 24a and an end surface of the second cylindrical member 24b when the first cylindrical member 24a and the second cylindrical member 24b are connected in series. Is inserted between. In this state, the first cylindrical member 24a and the second cylindrical member 24b are flange-joined, whereby the connecting plate 511 is connected to the first cylindrical member 24a and the second cylindrical member 24b. Fixed.

  As described above, the first cylindrical member 24a and the second cylindrical member 24b are joined to each other by flange-bonding the first cylindrical member 24a and the second cylindrical member 24b. Configure the structure. Similarly, when the third cylindrical member 24c and the fourth cylindrical member 24d are flange-joined, the third cylindrical member 24c and the fourth cylindrical member 24d are the second cylindrical structure. Configure. Further, the fifth cylindrical member 24e and the sixth cylindrical member 24f are joined to each other by the flange, so that the fifth cylindrical member 24e and the sixth cylindrical member 24f have the third cylindrical structure. Configure.

  Further, as shown in FIG. 4, the connecting plate 511 is configured such that the first cylinder structure, the second cylinder structure, and the third cylinder structure are connected to each other in the parallel direction. The cylindrical structure, the second cylindrical structure, and the third cylindrical structure are shared.

  With the configuration as described above, the cylindrical structure connected in the series direction and the parallel direction using the connecting plate 511 in the first embodiment is easy to work on site and easily correct errors in construction accuracy. There is an effect. The connecting plate 511 is also preferable from the viewpoint of transporting to the site, and in any case, the work of flange joining the cylindrical member in the series direction occurs, so the cylindrical member is inserted with the connecting plate 511 inserted. There is no significant work burden on flange joining.

  Further, when there is an error in the height direction between the cylindrical structures in the field construction, an error in construction accuracy can be obtained by appropriately inserting a shim ring SR having a required thickness between the cylindrical member and the connecting plate 511. It is also possible to correct.

(Example 2)
FIGS. 8-12 is a figure which shows Example 2 of the cylindrical structure which connected the some cylindrical member to the serial direction and the parallel direction. FIG. 8 is a view showing a connecting plate in the second embodiment, and FIG. 9 is an assembly perspective view of the cylindrical structure in the second embodiment. 10 and 11 are cross-sectional views showing the cylindrical structures connected using the connecting plate in the second embodiment. 10 is a cross-sectional view of the cross section taken along the line E-E in FIG. 11, and FIG. 11 is a cross-sectional view of the cross section taken along the line D-D in FIG. FIG. 12 is a detailed view of a region R2 in FIG.

  As shown in FIG. 8, the connecting plate in the second embodiment includes a first connecting plate 521, a second connecting plate 522, and a third connecting plate 523. As shown in FIG. 9, the first to sixth cylindrical members 24 a to 24 f are connected in series and in parallel via the first connecting plate 521, the second connecting plate 522, and the third connecting plate 523. Linked in the direction.

  As shown in FIG. 8, the first connecting plate 521 includes two openings, a first opening 521a and a second opening 521b, and the second connecting plate 522 includes the first opening 522a and the first opening 522a. The second opening 522b has two openings, and the third connecting plate 523 has two openings, a first opening 523a and a second opening 523b.

  As shown in FIG. 10, the shape of the first opening 521a in the first connecting plate 521 and the shape of the first opening 522a in the second connecting plate 522 are substantially the same as the opening shape of the end surface of the first tubular member 24a. The shape of the second opening 522b in the second connecting plate 522 and the shape of the first opening 523a in the third connecting plate 523 are substantially the same as the opening shape of the end surface of the third cylindrical member 24c. The shape of the second opening 523b in the third connecting plate 523 and the shape of the second opening 521b in the first connecting plate 521 are substantially the same as the opening shape of the end surface of the fifth cylindrical member 24e. Is consistent. Although not shown in the drawing, as a result, the first opening 521a, the first opening 522a, the second opening 522b, the first opening 523a, the second opening 523b, and the second opening 521b , Respectively, substantially correspond to the opening shapes of the end surfaces of the second cylindrical member 24b, the fourth cylindrical member 24d, and the sixth cylindrical member 24f. Also, typically, the opening shapes of the end surfaces of the first to sixth cylindrical members 24a to 24f are the same, and each opening has the same shape also in the present embodiment.

  Here, in the present embodiment as well as in the first embodiment, the shape substantially matching the end face shape means that the shape of the opening is appropriately adjusted depending on whether the flange FL is an outer flange or an inner flange. The bolt hole H is provided around the opening along the edge of the opening. The distance between the centers of the openings coincides with the inter-axis distance of the first to sixth cylindrical members 24a to 24f when the first to sixth cylindrical members 24a to 24f are connected in parallel. Become.

  A dummy ring 524 is described next to the second connecting plate 522 shown in FIG. As will be described later, the dummy ring 524 has a first connecting plate 521 and a third connecting plate 521 when the first connecting plate 521, the second connecting plate 522, and the third connecting plate 523 are stacked. This is for filling a gap formed between the plate 523 and the plate 523. Therefore, the dummy ring 524 has a thickness equivalent to that of the second connecting plate 522, and the second opening 521 b in the first connecting plate 521 and the second opening 523 b in the third connecting plate 523. It has the same shape as the shape.

  As shown in FIGS. 11 and 12, the first connecting plate 521, the third connecting plate 523, and the dummy ring 524 connect the fifth cylindrical member 24e and the sixth cylindrical member 24f in series. When connected, it is inserted between the end surface of the fifth cylindrical member 24e and the end surface of the sixth cylindrical member 24f. In this state, the fifth cylindrical member 24e and the sixth cylindrical member 24f are flange-joined, so that the first connecting plate 521, the third connecting plate 523, and the dummy ring 524 are The fifth cylindrical member 24e and the sixth cylindrical member 24f are fixed.

  Although detailed illustration is omitted, similarly, the first connecting plate 521 and the second connecting plate 522 are connected when the first tubular member 24a and the second tubular member 24b are connected in series. It is inserted between the end surface of the first cylindrical member 24a and the end surface of the second cylindrical member 24b. And in this state, the 1st cylindrical member 24a and the 2nd cylindrical member 24b are flange-joined, and the 1st connecting plate 521 and the 2nd connecting plate 523 are the 1st cylindrical members. It is fixed to 24a and the 2nd cylindrical member 24b. The second connecting plate 522 and the third connecting plate 523 are end faces of the third cylindrical member 24c when the third cylindrical member 24c and the fourth cylindrical member 24d are connected in series. And the end surface of the fourth cylindrical member 24d. In this state, the third cylindrical member 24c and the fourth cylindrical member 24d are flange-joined, so that the second connecting plate 522 and the third connecting plate 523 become the third cylindrical member. It is fixed to 24c and the 4th cylindrical member 24d.

  As described above, when the first connecting plate 521, the second connecting plate 522, the third connecting plate 523, and the dummy ring 524 are combined, as shown in FIGS. 11 and 12, the first connecting plate is used. When the dummy ring 524 is inserted between the second connecting plate 523 and the third connecting plate 523, the first connecting plate 521 and the third connecting plate 523 generated by the thickness of the second connecting plate 522 It is possible to fill the gap formed between the two with the dummy ring 524.

  Further, as shown in FIGS. 9, 11, and 12, if a shim ring SR is appropriately inserted between the first connecting plate 521, the third connecting plate 523, the second connecting plate 522, and the dummy ring 524, In the field construction, errors in the height direction can be easily corrected between the cylindrical structures.

  As described above, the first cylindrical member 24a and the second cylindrical member 24b are joined to each other by flange-bonding the first cylindrical member 24a and the second cylindrical member 24b. Configure the structure. Similarly, when the third cylindrical member 24c and the fourth cylindrical member 24d are flange-joined, the third cylindrical member 24c and the fourth cylindrical member 24d are the second cylindrical structure. Configure. Further, the fifth cylindrical member 24e and the sixth cylindrical member 24f are joined to each other by the flange, so that the fifth cylindrical member 24e and the sixth cylindrical member 24f have the third cylindrical structure. Configure.

  Further, as shown in FIG. 9, the first connecting plate 521 is connected to the first tubular structure and the first tubular structure when the first tubular structure and the third tubular structure are connected in the parallel direction. The three cylindrical structures are shared. Similarly, the second connecting plate 522 has the first cylindrical structure and the second cylindrical structure when the first cylindrical structure and the second cylindrical structure are connected in the parallel direction. The third connecting plate 523 is connected to the second cylindrical structure and the third cylindrical structure in the parallel direction. And the third cylindrical structure. When these are combined, the first cylindrical structure, the second cylindrical structure, and the third cylindrical structure become the first connecting plate 521, the second connecting plate 522, and the third The connecting plates 523 are connected in the parallel direction.

  With the configuration as described above, the cylindrical structures connected in the series direction and the parallel direction using the first connecting plate 521, the second connecting plate 522, and the third connecting plate 523 in the second embodiment are as follows. The work at the site is simple and it is easy to correct errors in construction accuracy.

  Further, the first connecting plate 521, the second connecting plate 522, and the third connecting plate 523 are more suitable than the connecting plate 511 of the first embodiment from the viewpoint of further transporting to the site. Since the connecting plate 511 of the first embodiment has a shape close to an equilateral triangle, a certain amount of width is required no matter how it is arranged, but the first connecting plate 521, the second connecting plate 522, and Since the third connecting plate 523 has a shape close to a rectangle, there is a great merit when the third connecting plate 523 is loaded on the loading platform of the transport vehicle. Nevertheless, the cylindrical structures connected in the series direction and the parallel direction using the first connecting plate 521, the second connecting plate 522, and the third connecting plate 523 in the second embodiment are the same as those in the first embodiment. It inherits all of the effects.

  In the second embodiment described above, since the three cylindrical structures are connected in the parallel direction, a dummy ring is required. However, when connecting an even number of cylindrical structures in the parallel direction, the dummy ring is used. Even if it is not used, it is possible to combine a plurality of connecting plates. That is, in this embodiment, the dummy ring is not necessarily an essential configuration.

(Example 3)
FIGS. 13-18 is a figure which shows Example 3 of the cylindrical structure which connected the some cylindrical member to the serial direction and the parallel direction. FIG. 13 is a view showing a connecting plate in the third embodiment, and FIG. 14 is an assembly perspective view of the cylindrical structure in the third embodiment. 15 and 16 are cross-sectional views showing the cylindrical structures connected using the connecting plate in the third embodiment. 15 is a cross-sectional view of the cross section taken along line GG in FIG. 16 as viewed from above. FIG. 16 is a cross-sectional view of the cross section taken along line FF in FIG. 17 is a detailed view of a region R3 in FIG. 16, and FIG. 18 is a detailed view of a region R4 in FIG.

  As shown in FIG. 13, the connecting plate in the third embodiment includes a first connecting plate 531, a second connecting plate 532, and a third connecting plate 533. As shown in FIG. 14, the first to sixth cylindrical members 24 a to 24 f are connected in series and parallel via the first connecting plate 531, the second connecting plate 532, and the third connecting plate 533. Linked in the direction.

  As shown in FIG. 13, the first connecting plate 531 includes two openings, a first opening 531a and a second opening 531b, and the second connecting plate 532 includes the first opening 532a and the first opening 532a. The second opening 532b has two openings, and the third connecting plate 533 has two openings, a first opening 533a and a second opening 533b. As shown in FIG. 15, the shapes of these openings substantially match the opening shapes of the end faces of the first to sixth cylindrical members 24 a to 24 f, as in the second embodiment.

  Here, in the present embodiment as well as in the first embodiment, the shape substantially matching the end face shape means that the shape of the opening is appropriately adjusted depending on whether the flange FL is an outer flange or an inner flange. The bolt hole H is provided around the opening along the edge of the opening. The distance between the centers of the openings coincides with the inter-axis distance of the first to sixth cylindrical members 24a to 24f when the first to sixth cylindrical members 24a to 24f are connected in parallel. Become.

  As shown in FIGS. 13 and 14, the first connecting plate 531, the second connecting plate 532, and the third connecting plate 533 in Example 3 are connected to regions where openings are provided. Steps 531c, 532c, and 533c are provided in the thickness direction by the thickness of the plate. These steps are combined when stacking the first connecting plate 531, the second connecting plate 532, and the third connecting plate 533 as described below with reference to FIGS. This is for avoiding unnecessary gaps between the connecting plates. In other words, in the third embodiment, the dummy ring 524 that is necessary in the second embodiment when connecting the odd number of cylindrical structures in the parallel direction is not necessary.

  As shown in FIGS. 16 and 17, the first connecting plate 531 and the third connecting plate 533 are connected to each other when the fifth cylindrical member 24e and the sixth cylindrical member 24f are connected in series. The fifth cylindrical member 24e is inserted between the end surface of the fifth cylindrical member 24e and the end surface of the sixth cylindrical member 24f. And the 5th cylindrical member 24e and the 6th cylindrical member 24f are flange-joined in this state, The 1st connecting plate 531 and the 3rd connecting plate 533 are the 5th cylindrical member. 24e and the sixth cylindrical member 24f.

  Although detailed illustration is omitted, similarly, the first connecting plate 531 and the second connecting plate 532 are connected when the first tubular member 24a and the second tubular member 24b are connected in series. It is inserted between the end surface of the first cylindrical member 24a and the end surface of the second cylindrical member 24b. And in this state, the 1st cylindrical member 24a and the 2nd cylindrical member 24b are flange-joined, and the 1st connecting plate 531 and the 2nd connecting plate 532 are the 1st cylindrical member. It is fixed to 24a and the 2nd cylindrical member 24b. Further, the second connecting plate 532 and the third connecting plate 533 are end faces of the third cylindrical member 24c when the third cylindrical member 24c and the fourth cylindrical member 24d are connected in series. And the end surface of the fourth cylindrical member 24d. And the 3rd cylindrical member 24c and the 4th cylindrical member 24d are flange-joined in this state, The 2nd connecting plate 532 and the 3rd connecting plate 533 are the 3rd cylindrical members. It is fixed to 24c and the 4th cylindrical member 24d.

  Further, as shown in FIG. 18, the first connecting plate 531, the second connecting plate 532, and the third connecting plate 533 are each thicker by the thickness of the connecting plate in the region where the opening is provided. Since the steps are provided in the vertical direction, the steps are alternately combined, so that the third cylindrical member 24c and the fourth cylindrical member 24c are arranged between the first cylindrical member 24a and the second cylindrical member 24b. The thickness of the connecting plate to be inserted is constant between the cylindrical member 24d and between the fifth cylindrical member 24e and the sixth cylindrical member 24f.

  Further, as shown in FIGS. 14, 16, 17, and 18, if a shim ring SR is appropriately inserted between the first connecting plate 531, the third connecting plate 533, and the second connecting plate 532, The error in the height direction can be easily corrected between the tubular structures in the field construction.

  As described above, the first cylindrical member 24a and the second cylindrical member 24b are joined to each other by flange-bonding the first cylindrical member 24a and the second cylindrical member 24b. Configure the structure. Similarly, when the third cylindrical member 24c and the fourth cylindrical member 24d are flange-joined, the third cylindrical member 24c and the fourth cylindrical member 24d are the second cylindrical structure. Configure. Further, the fifth cylindrical member 24e and the sixth cylindrical member 24f are joined to each other by the flange, so that the fifth cylindrical member 24e and the sixth cylindrical member 24f have the third cylindrical structure. Configure.

  Further, as shown in FIG. 14, the first connecting plate 531 is connected to the first tubular structure and the first tubular structure when the first tubular structure and the third tubular structure are connected in the parallel direction. The three cylindrical structures are shared. Similarly, the second connecting plate 532 has the first cylindrical structure and the second cylindrical structure when the first cylindrical structure and the second cylindrical structure are connected in the parallel direction. The third connecting plate 533 is connected to the second cylindrical structure and the third cylindrical structure in the parallel direction. And the third cylindrical structure. When these are combined, the first cylindrical structure, the second cylindrical structure, and the third cylindrical structure are converted into the first connecting plate 531, the second connecting plate 532, and the third connecting member. The connecting plates 533 are connected in the parallel direction.

  With the configuration as described above, the cylindrical structures connected in the series direction and the parallel direction using the first connecting plate 531, the second connecting plate 532, and the third connecting plate 533 in the third embodiment are as follows. The work at the site is simple and it is easy to correct errors in construction accuracy.

  Furthermore, the first connecting plate 531, the second connecting plate 532, and the third connecting plate 533 in the third embodiment are each in the thickness direction by the thickness of the connecting plate in the region where the opening is provided. Since the step is provided, the dummy ring 524 required in the second embodiment is not necessary. This not only eliminates the need for the dummy ring 524 member, but also means that it is possible to shorten the length of the bolt b when connecting the cylindrical members in the series direction. Therefore, the cylindrical structure connected in the serial direction and the parallel direction using the first connecting plate 531, the second connecting plate 532, and the third connecting plate 533 in Example 3 is more than that in Example 2. Are also excellent in terms of strength and durability.

  In the third embodiment described above, the first connecting plate 531, the second connecting plate 532, and the third connecting plate 533 are all provided with the steps 531c, 532c, and 533c. Even if a step is provided in only one of the plate 531, the second connecting plate 532, and the third connecting plate 533, they can be combined so as not to generate a gap when combined. Considering that the numbering in the first connecting plate 531, the second connecting plate 532, and the third connecting plate 533 is for convenience, the first tubular structure in the first connecting plate It can be considered that a step is provided between the portion inserted into the second cylindrical structure and the portion inserted into the second cylindrical structure. More generally, when connecting an odd number of cylindrical structures in the parallel direction, a step is provided in only one of the connecting plates, and when connecting an even number of cylindrical structures in the parallel direction, Even if a step is not provided, it can be combined so as not to generate a gap when combined.

  As mentioned above, although embodiment of this invention was described concretely, this invention is not limited to the above-mentioned embodiment, Various deformation | transformation based on the technical idea of this invention is possible. The embodiment described above relates to a cylindrical structure that forms part of a tower-like structure, but is not a tower-like structure, for example, a cylindrical structure that forms part of a chimney configured in parallel. It can also be applied to objects.

  Moreover, although embodiment described above employ | adopts the structure which connects a cylindrical member in a series direction when laminating | stacking a some cylindrical member to a perpendicular direction, it is not limited to this direction. For example, the embodiment of the present invention can be applied to parallel connection of outdoor pipes installed in parallel as seen in a factory.

  Moreover, although embodiment described above is related with the connection of the parallel direction with respect to three cylindrical structures, it is applicable at the time of the connection of the parallel direction with respect to at least two cylindrical structures, and it is four or more cylindrical shapes. It can also be extended to parallel connection to structures.

  Moreover, although the connecting plate in the embodiment described above has an opening corresponding to the opening shape of the end face of the cylindrical member, it is not necessarily essential as a configuration that exhibits the effects of the present invention. That is, in the tower-like structure in the embodiment described above, it is assumed that the worker uses the internal space of the cylindrical structure, but the worker needs to use the internal space of the cylindrical structure. Otherwise, it is not always necessary to provide an opening in the connecting plate, and even if the opening is provided in the connecting plate, it is not necessary to match the opening shape of the end face of the tubular member.

  Furthermore, in the embodiment described above, it is assumed that the connecting plate is manufactured from a single steel plate, but this is not necessarily the case, and it is also possible to manufacture by joining a plurality of plates by welding or the like. is there. Further, regarding the material of the connecting plate, other materials may be used instead of the steel plate. All these variations belong to the category of the present invention.

DESCRIPTION OF SYMBOLS 1 Tower-like structure 2,2A, 2B, 2C Cylindrical structure 21 Inclined cylindrical part 22 Vertical cylindrical part 23 Constriction part 24,24a-24f Cylindrical member 25 1st opening part 26 2nd opening part 3,3A , 3B, 3C Support structure 4 Blocking part 5,511,521,522,523,531,532,533 Connecting plate 524 Dummy ring 6 Substructure O Reference point

Claims (7)

A cylindrical structure in which a plurality of cylindrical members are connected in series and parallel directions,
When the first tubular member and the second tubular member are connected in series, the first tubular member is inserted between the end surface of the first tubular member and the end surface of the second tubular member. Fixed to the first tubular member and the second tubular member; and
When the third tubular member and the fourth tubular member are connected in series, the third tubular member is inserted between the end surface of the third tubular member and the end surface of the fourth tubular member. Fixed to the third cylindrical member and the fourth cylindrical member;
The 1st cylindrical structure which the 1st cylindrical member and the 2nd cylindrical member constitute, the 2nd cylindrical structure which the 3rd cylindrical member and the 4th cylindrical member constitute A cylindrical structure comprising a first connecting plate shared between the first cylindrical structure and the second cylindrical structure when the objects are connected in a parallel direction. . The first connecting plate is
When the fifth cylindrical member and the sixth cylindrical member are connected in series, the fifth cylindrical member and the sixth cylindrical member are inserted between the end surface of the fifth cylindrical member and the end surface of the sixth cylindrical member. Fixed to the fifth cylindrical member and the sixth cylindrical member;
The third cylindrical structure, the first cylindrical structure, and the second cylindrical structure constituted by the fifth cylindrical member and the sixth cylindrical member are connected in a parallel direction. The cylindrical structure according to claim 1, wherein the cylindrical structure is shared among the first cylindrical structure, the second cylindrical structure, and the third cylindrical structure. .   The first connecting plate is provided with an opening substantially corresponding to the opening shape of the end surface of the first cylindrical structure, the second cylindrical structure, and the third cylindrical structure. The cylindrical structure according to claim 2, wherein the cylindrical structure is provided. When the third cylindrical member and the fourth cylindrical member are connected in series, the third cylindrical member is inserted between the end surface of the third cylindrical member and the end surface of the fourth cylindrical member. Fixed to the third cylindrical member and the fourth cylindrical member in a state; and
When the fifth cylindrical member and the sixth cylindrical member are connected in series, the fifth cylindrical member and the sixth cylindrical member are inserted between the end surface of the fifth cylindrical member and the end surface of the sixth cylindrical member. Fixed to the fifth cylindrical member and the sixth cylindrical member;
The second cylindrical structure when the second cylindrical structure and the third cylindrical structure formed by the fifth cylindrical member and the sixth cylindrical member are connected in a parallel direction. A second connecting plate shared between the object and the third cylindrical structure;
When the fifth cylindrical member and the sixth cylindrical member are connected in series, the fifth cylindrical member is inserted between the end surface of the fifth cylindrical member and the end surface of the sixth cylindrical member. Fixed to the fifth cylindrical member and the sixth cylindrical member in a state; and
When the first cylindrical member and the second cylindrical member are connected in series, the first cylindrical member is inserted between the end surface of the first cylindrical member and the end surface of the second cylindrical member. Fixed to the first tubular member and the second tubular member in a state;
When the third cylindrical structure and the first cylindrical structure are connected in a parallel direction, the third cylindrical structure and the first cylindrical structure are shared. A third tether,
The cylindrical structure according to claim 1, further comprising: The first connecting plate is provided with a step between a portion inserted into the first tubular structure and a portion inserted into the second tubular structure.
The cylindrical structure according to claim 4. The first connecting plate is provided with an opening substantially corresponding to an opening shape of an end surface of the first cylindrical structure and the second cylindrical structure,
The second connecting plate is provided with an opening substantially corresponding to the opening shape of the end surfaces of the second cylindrical structure and the third cylindrical structure,
5. The third connecting plate is provided with an opening substantially corresponding to an opening shape of an end surface of the third cylindrical structure and the first cylindrical structure. Or the cylindrical structure of 5.   A tower-like structure characterized by partially including the cylindrical structure according to any one of claims 1 to 6.

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