wheel-shaped structure

Abstract

To provide a polygonal wheel-shaped structure that does not require a curved frame. [Solution] In a plan view, the structure comprises a polygonal central ring 100 and a plurality of elongated beams 200, with one end of each beam 200 connected to the central ring 100 and the other end extending toward the outer circumference, the bending rigidity of the central ring 100 being higher than that of the beams 200, and the outer ends of the plurality of beam structures 200 forming a polygonal outer circumference in a plan view.

Description

Technical Field

[0001] The present invention relates to a wheel-shaped structure.

Background Art

[0002] Conventionally, facilities such as dome-shaped buildings and arena-shaped buildings have adopted a design in which spectator seats are provided in a polygonal shape over the entire circumference. In addition, in order not to obstruct the view from the spectator seats, a design for constructing a large-scale space with columns only on the outer periphery is frequently used.

[0003] Therefore, in facilities such as dome-shaped buildings and arena-shaped buildings, a circular or elliptical shape is adopted for the beam structure in order to ensure high bending rigidity. For example, Patent Document 1 constructs a dome with a conical roof structure arranged radially. Also, for example, Patent Documents 2-3 construct a dome with a circular roof structure having an annular support at the center.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in facilities with circular and elliptical roof structures, the structural elements such as the exterior walls must be curved in accordance with the beam structure, which presents problems in terms of construction difficulty and cost. In addition, facilities with circular and elliptical roof structures have a polygonal arrangement of seating, resulting in wasted space and thus poorer seating capacity compared to other theater-type facilities.

[0006] The present invention aims to provide a polygonal wheel-shaped structure that does not require a curved frame. [Means for solving the problem]

[0007] To achieve the above objectives, the present invention provides the following means. The wheel-shaped structure of the present invention comprises, in plan view, a polygonal central ring and a plurality of elongated beams, one end of each beam connected to the central ring and the other end extending toward the outer circumference, the bending rigidity of the central ring being higher than that of the beams, and the outer ends of the plurality of beams forming a polygonal outer circumference in plan view.

[0008] In the wheel-shaped structure of the present invention, the central ring may be formed in a polygonal shape having an angle of 1 / 2 or less of the number of beams arranged radially in a plan view.

[0009] In the wheel-shaped structure of the present invention, the central ring has an inner ring formed in a polygonal shape and an outer ring positioned outside the inner ring and also formed in a polygonal shape, and the inner ring and the outer ring are positioned so that their centers coincide in a plan view and may be connected by a plurality of ring connecting members.

[0010] In the wheel-shaped structure of the present invention, the beam has an elongated upper chord member that extends from one end to the other so as to pass over the upper part of the central ring, and an elongated lower chord member that has one end connected perpendicular to the outer circumference of the outer ring and the other end extending toward the outer circumference, and the upper chord member and the central ring may be connected by a plurality of bundle members.

[0011] In the wheel-shaped structure of the present invention, a storage space is formed inside the inner ring, the upper chord member, and the bundle member, and an upper suspension mechanism is provided at the top of the storage space, the upper suspension mechanism is connected to an upper performance equipment, and the upper performance equipment suspended by the upper suspension mechanism may be provided so as to be able to move in and out of the storage space.

[0012] In the wheel-shaped structure of the present invention, the central ring may be provided with a lower suspension mechanism, the lower suspension mechanism may be connected to a lower performance equipment, and the lower performance equipment suspended by the lower suspension mechanism may be provided below the upper performance equipment so as to be able to move up and down.

[0013] In the wheel-shaped structure of the present invention, the plurality of beams are arranged radially, the upper chord extends while curving at a predetermined angle so as to draw an upward substantially parabola from one end to the other in a front view, the lower chord extends while curving at a predetermined angle so as to draw a downward substantially parabola from one end to the other in a front view, the upper chord and the lower chord are arranged at the same position in a plan view and connected by a plurality of chord connecting members, and an outer perimeter beam may be provided connecting the outer perimeter ends of the plurality of upper chords and the outer perimeter ends of the plurality of lower chords. [Effects of the Invention]

[0014] According to the present invention, a polygonal wheel-shaped structure can be provided that does not require a curved frame. [Brief explanation of the drawing]

[0015] [Figure 1]A perspective view of a wheel-shaped structure according to an embodiment of the present invention is shown. [Figure 2] A plan view and an A-A sectional view of a wheel-shaped structure according to an embodiment of the present invention are shown. [Figure 3] An enlarged view of D1 of a plan view of a wheel-shaped structure according to an embodiment of the present invention is shown. [Figure 4] The usage state of the upper stage equipment of a wheel-shaped structure according to an embodiment of the present invention is shown. [Figure 5] The storage state of the upper stage equipment of a wheel-shaped structure according to an embodiment of the present invention is shown. [Figure 6] The usage state of the lower stage equipment of a wheel-shaped structure according to an embodiment of the present invention is shown.

Embodiments for Carrying Out the Invention

[0016] The wheel-shaped structure of the present invention will be described with reference to FIGS. 1-5. FIG. 1 is a perspective view of a wheel-shaped structure 1 according to an embodiment. The wheel-shaped structure 1 of the present embodiment is a roof structure formed in an octagonal outer peripheral shape in plan view. In an embodiment, two directions of the radial direction R and the height direction Z of the wheel-shaped structure 1 are defined. Also, in an embodiment, the truss structure is defined as a structure that forms a framework composed of a plurality of substantially triangular shapes by connecting structural members. Also, in an embodiment, when there is no special description, the connection between structural members is assumed to be connected by welding or fastening using a fastener.

[0017] The wheel-shaped structure 1 of the embodiment is a structure in an arena-type building 500. The wheel-shaped structure 1 includes a central ring 100 provided at the center, a plurality of beam structures (beams) 200 connected to the central ring 100 and provided so as to extend toward the outer peripheral side in the radial direction R, and an outer peripheral beam 300 provided to connect the other ends of the beam structures 200.

[0018] Figure 2 shows a plan view and a cross-sectional view AA of the wheel-shaped structure 1 according to the embodiment. (a) shows a plan view of the wheel-shaped structure 1. (b) shows the cross-sectional view AA in the plan view. The central ring 100 is a steel structural member with high bending rigidity, formed in an octagonal shape in plan view and equipped with a truss structure. The central ring 100 comprises an inner ring 101, an outer ring 102, and a ring connecting member 103. The central ring 100 has the inner ring 101 on the inside in the radial direction R and the outer ring 102 on the outside in the radial direction R.

[0019] Furthermore, the central ring 100 is not limited to an octagonal shape in plan view, but may also be a polygonal shape with angles less than or equal to half the number of beam structures 200 arranged radially.

[0020] The inner ring 101, the outer ring 102, and the ring connecting members 103 are formed from cylindrical steel members. The inner ring 101 and the outer ring 102 are formed in an octagonal shape in plan view. The inner ring 101 and the outer ring 102 are arranged so that their centers coincide and on the same straight line perpendicular to the height direction Z in a front view. The central ring 100 is connected by a plurality of ring connecting members 103 so as to construct a truss structure in the same plane between the outer circumference of the inner ring 101 and the inner circumference of the outer ring 102.

[0021] Multiple ring connecting members 103 are arranged to alternately connect the intersections of the multiple beam structures 200 and the inner rings 101, and the intersections of the multiple beam structures 200 and the outer rings 102.

[0022] The central ring 100 and the beam structure 200 are connected via a plurality of support members 104. The support members 104 are formed from cylindrical steel members. The support members 104 are positioned directly above the outer ring 102 and at the lower part 205 of the upper chord. One end of the support member 104 is connected to the upper part of the outer ring 102, and the other end is connected to the lower part 205 of the upper chord. Therefore, the support members 104 are parallel to the height direction Z.

[0023] The beam structure 200 is a long steel structural member with high bending rigidity, with one end connected to the central ring 100 and the other end extending toward the outer circumference. Multiple beam structures 200 are arranged radially around a central ring 100. Each beam structure 200 comprises an upper chord 201, a lower chord 202, and a chord connecting member 203. The other ends of each beam structure 200 are formed in an octagonal shape similar to the central ring 100 in plan view. The beam structure 200 includes a truss structure in the same plane between the lower part 205 of the upper chord and the upper part 206 of the lower chord.

[0024] The upper chord member 201, the lower chord member 202, and the chord connecting member 203 are formed from cylindrical steel members. The upper chord member 201 is a long member positioned to pass through the upper center of the central ring 100, with both ends connected to the outer perimeter beam 300. In a front view, the upper chord member 201 extends while curving at a predetermined angle, forming an upward, approximately parabolic curve from one end to the other. The lower chord member 202 is a long member in which one end is connected perpendicularly to the outer circumference of the outer ring 102 and the other end is connected to the outer perimeter beam 300. In a front view, the lower chord member 202 extends while curving at a predetermined angle, drawing a substantially parabolic downward curve from one end to the other. The upper chord member 201 and the lower chord member 202 are positioned in the same location in a plan view and are connected by multiple chord connecting members 203 to construct a truss structure within the same inner plane.

[0025] The string connecting member 203 includes a string connecting member 203a, which is positioned parallel to the height direction Z and radially R to the outside of the center of the lower chord member 202, and connects the upper part 206 of the lower chord member and the lower part 205 of the upper chord member. The string connecting member 203 also includes a string connecting member 203d, which is positioned parallel to the height direction Z and directly above one inner end of the upper part 206 of the lower chord member, and connects the upper part 206 of the lower chord member and the lower part 205 of the upper chord member. The string connecting member 203 also includes a string connecting member 203b, which connects the lower end of string connecting member 203a and the upper end of string connecting member 203d, and a string connecting member 203c, which connects the upper end of string connecting member 203a and the lower end of string connecting member 203d. Furthermore, the wheel-shaped structure 1 includes an intermediate horizontal beam 301 that connects the intersections of the lower ends of multiple chord connecting members 203a and the upper parts 206 of multiple lower chord members. The intermediate horizontal beam 301 is composed of multiple steel beams.

[0026] The outer perimeter beam 300 is composed of multiple steel beams arranged to connect the outer perimeter ends of multiple beam structures 200. The upper part of the outer perimeter beam 300 is connected to the upper chord member 201. The lower part of the outer perimeter beam 300 is connected to the lower chord member 202. In plan view, the outer perimeter beam 300 is formed in an octagonal shape similar to the central ring 100. In front view, the outer perimeter beam 300 is formed in a straight line.

[0027] Furthermore, the other end of the beam structure 200 and the outer perimeter beam 300 do not necessarily have a shape similar to the central ring 100 in a plan view, and are not limited to an octagonal shape.

[0028] In the central ring 100, an opening 401 is formed inside the inner ring 101 in the radial direction R. Above the opening 401, a housing space 400 is formed, surrounded around the periphery by the bundle member 104 and above the upper chord member 201.

[0029] Figure 3 shows an enlarged view (D1) of the truss structure of the central ring 100 according to the embodiment. As shown in Figures 1-3, the central ring 100 has an octagonal shape in plan view, with alternating short sides 110 intersecting three beam structures 200a, 200b, and 200c, and long sides 120 intersecting four beam structures 200c, 200d, 200e, and 200f. Figure 3 shows one short side 110 and one long side 120 of the octagonal shape. In Figure 3, the intersections of the inner ring 101 and the beam structures 200a, 200b, 200c, 200d, 200e, and 200f are defined as inner intersections 107a, 107b, 107c, 107d, 107e, and 107f, respectively. Furthermore, in Figure 3, the intersections of the outer ring 102 and the beam structures 200a, 200b, 200c, 200d, 200e, and 200f are defined as outer intersections 106A, 106B, 106C, 106D, 106E, and 106F, respectively.

[0030] The short side 110 of the central ring 100 has three inner intersections 107a, 107b, and 107c, and three outer intersections 106A, 106B, and 106C. One end of the short side 110 intersects with beam structure 200a, and the other end intersects with beam structure 200c. The center of the short side 110 also intersects with beam structure 200b. An inner intersection 107a located at one end of the short side 110 and an outer intersection 106B located in the center are connected by a ring connecting member 103aB. Furthermore, an inner intersection 107c located at the other end and an outer intersection 106B located in the center are connected by a ring connecting member 103cB. Therefore, the short side 110 of the central ring 100 is formed by the inner ring 101, the outer ring 102, and the two ring connecting members 103aB and 103cB, creating a truss structure.

[0031] The long side 120 of the central ring 100 has four inner intersections 107c, 107d, 107e, and 107f, and four outer intersections 106C, 106D, 106E, and 106F. One end of the long side 120 intersects with beam structure 200c, and the other end intersects with beam structure 200f. In addition, the middle part of the long side 120 intersects with beam structures 200d and 200e. Of the two outer intersections 106D and 106E located in the middle of the long side 120, one outer intersection 106D is connected to two inner intersections 107c and 107e, which intersect with the beam structures 200c and 200e located on either side, by ring connecting members 103cD and 103eD. The other outer intersection 106E is connected to two inner intersections 107d and 107f, which intersect with the beam structures 200d and 200f located at both ends, by ring connecting members 103dE and 103fE. Therefore, the long side 120 of the central ring 100 is formed by the inner ring 101, the outer ring 102, and the four ring connecting members 103cD, 103eD, 103dE, and 103fE, creating a truss structure.

[0032] The central ring 100 has a more intricate truss structure than the beam structure 200. Therefore, the central ring 100 has higher bending rigidity than the beam structure 200.

[0033] Figure 4 shows the usage state of the upper performance equipment 412 of the wheel-shaped structure 1 according to the embodiment. The wheel-shaped structure 1 forms the roof portion of the arena-type building 500 through the connection of the outer perimeter beam 300 and the columns 501. In plan view, since the outer perimeter beam 300 of the arena-type building 500 has an octagonal shape, the exterior walls are also formed in a similar octagonal shape. Therefore, the arena-type building 500 having the wheel-shaped structure 1 can be constructed using straight-shaped members that do not have curved surfaces.

[0034] The wheel-shaped structure 1 is equipped with an upper suspension mechanism 411 at the lower part of the upper chord member 201 in the accommodation space 400. The upper suspension mechanism 411 is a lifting device for large equipment that has a lifting function. The upper suspension mechanism 411 is connected to the upper performance equipment 412. The upper projection equipment 412 is, for example, a large screen with multiple projection surfaces. The upper projection equipment 412 is installed so as to be movable in the height direction Z by the raising and lowering operation of the upper suspension mechanism 411. When the upper stage equipment 412 is in use, the upper stage equipment 412 is positioned so that its upper end is lower than the lower end of the accommodating space 400, by the lifting function of the upper suspension mechanism 411. In this state, the upper stage equipment 412 is clearly visible from the audience seats 502.

[0035] Figure 5 shows the housing state of the upper performance equipment 412 of the wheel-shaped structure 1 according to the embodiment. When the upper stage equipment 412 is not in use, the upper stage equipment 412 is positioned so that its lower end is higher than the lower end of the housing space 400, by the lifting function of the upper suspension mechanism 411. Therefore, the upper stage equipment 412 is housed inside the housing space 400. In this state, the upper stage equipment 412 is not visible from the audience seats 502.

[0036] Figure 6 shows the usage state of the lower performance equipment 422 of the wheel-shaped structure 1 according to the embodiment. The wheel-shaped structure 1 is equipped with a lower suspension mechanism 421 at the bottom of the central ring 100. The lower suspension mechanism 421 is a stage suspension mechanism that is detachably attached to the central ring 100 and has a lifting function. The lower suspension mechanism 421 is connected to the lower performance equipment 422. When the lower performance equipment 422 is in use, the upper performance equipment 412 is housed in the storage space 400. The lower stage equipment 422 is a rod-shaped stage fixture equipped with lighting and other elements. The lower stage equipment 422 is located below the upper stage equipment 412, and since the upper stage equipment 412 is housed inside the accommodation space 400, it is clearly visible from the audience seats 502.

[0037] Therefore, the wheel-shaped structure 1 is equipped with a storage space 400, which allows the arrangement of the upper performance equipment 412 and the lower performance equipment 422 to be changed according to the application, and the visibility from the audience seats 502 can be adjusted.

[0038] As described above, the wheel-shaped structure 1 according to this embodiment comprises a central ring 100 provided at the center, a plurality of beam structures 200 connected to the central ring 100 and extending toward the outer circumference in the radial direction R, and an outer perimeter beam 300 provided to connect the other ends of the beam structures 200. The central ring 100 is formed in an octagonal shape in plan view. The central ring 100 has a more finely tuned truss structure than the beam structures 200. Therefore, the central ring 100 has higher bending rigidity than the beam structures 200. The wheel-shaped structure 1 constitutes the roof portion of the arena-type building 500 through the connection of the outer perimeter beam 300 and the columns 501. In plan view, the arena-type building 500 is formed in a similar octagonal shape because the outer perimeter beam 300 has an octagonal shape. Therefore, the arena-type building 500 having the wheel-shaped structure 1 can be constructed with straight-shaped members that do not have curved surfaces. Therefore, the wheel-shaped structure 1 is formed in a polygonal shape without a curved shape. Furthermore, the wheel-shaped structure 1 has high bending rigidity that enables it to bear the locally increased stress associated with the polygonal shape. Since the wheel-shaped structure 1 does not require a curved shape for its frame, construction efficiency is improved, such as making construction easier, and construction costs can be reduced. In addition, since the frame shape can be made to match the arrangement of the seats 502, the occurrence of surplus space can be reduced, and the capacity to accommodate spectators can be increased.

[0039] In the wheel-shaped structure 1 according to this embodiment, the central ring 100 comprises an inner ring 101, an outer ring 102, and ring connecting members 103. The central ring 100 has an inner ring 101 on the inside in the radial direction R and an outer ring 102 on the outside in the radial direction R. The inner ring 101 and the outer ring 102 are formed in an octagonal shape in plan view. The inner ring 101 and the outer ring 102 are arranged such that their thickness direction is the same as the height direction Z. Furthermore, the inner ring 101 and the outer ring 102 are arranged so that their centers coincide and on the same straight line perpendicular to the height direction Z in a front view. The central ring is connected by a plurality of ring connecting members 103 so as to construct a truss structure in the same plane between the outer circumference of the inner ring 101 and the inner circumference of the outer ring 102. Therefore, the central ring 100 of the wheel-shaped structure 1 has high bending rigidity that enables it to bear the locally increasing stress associated with the polygonal shape.

[0040] In the wheel-shaped structure 1 according to this embodiment, the beam structure 200 has a truss structure in the height direction Z, with one end connected to the central ring 100 and the other end extending toward the outer circumference. The beam structure 200 comprises an upper chord member 201, a lower chord member 202, and a chord connecting member 203. The upper chord member 201 is positioned to pass through the upper center of the central ring 100, with both ends connected to the outer circumference beam 300. The lower chord member 202 has one end connected perpendicular to the outer circumference of the outer ring 102, and the other end connected to the outer circumference beam 300. The beam structure 200 has a truss structure in the same plane between the lower part 205 of the upper chord member and the upper part 206 of the lower chord member. The central ring 100 and the beam structure 200 are connected via a plurality of support members 104. Therefore, the beam structure 200 of the wheel-shaped structure 1 has high bending rigidity that more effectively enables it to bear the locally increasing stress associated with the polygonal shape.

[0041] In the wheel-shaped structure 1 according to this embodiment, the central ring 100 has an opening 401 formed inside the inner ring 101 in the radial direction R. Above the opening 401, a housing space 400 is formed, surrounded by a support member 104 around the perimeter and an upper chord member 201 at the top. The wheel-shaped structure 1 is equipped with an upper suspension mechanism 411 at the lower part of the upper chord member in the housing space 400. The upper suspension mechanism 411 is connected to the upper performance equipment 412. When the upper performance equipment 412 is not in use, the upper performance equipment 412 is positioned so that its lower end is higher than the lower end of the housing space 400 by the lifting function of the upper suspension mechanism 411. Therefore, the upper performance equipment 412 is housed inside the housing space 400. In this state, the upper performance equipment 412 is not visible from the audience seats 502. Therefore, the wheel-shaped structure 1 can accommodate the upper stage equipment 412 without increasing the building height. This reduces the construction cost of the wheel-shaped structure 1. Furthermore, the wheel-shaped structure 1 can be used for a variety of purposes, such as sporting events requiring the upper stage equipment 412, and concerts where visibility is essential.

[0042] In this embodiment, the wheel-shaped structure 1 is equipped with a lower suspension mechanism 421 at the lower part of the central ring 100. The lower suspension mechanism 421 is connected to the lower performance equipment 422. Furthermore, the lower performance equipment 422 is positioned below the upper performance equipment 412, and since the upper performance equipment 412 is housed inside the accommodation space 400, it is clearly visible from the audience seats 502. Therefore, the wheel-type structure 1 can be equipped with an upper performance device 412 and a lower performance device 422. Thus, the wheel-type structure 1 can be more preferably used for a variety of purposes.

[0043] In the wheel-shaped structure 1 according to this embodiment, the other ends of the multiple beam structures 200 are formed in an octagonal shape similar to the central ring 100 in a plan view. The multiple beam structures 200 are arranged radially with respect to the central ring 100. The upper chord member 201 extends while curving at a predetermined angle, drawing an upward substantially parabolic curve from one end to the other in a front view. The lower chord member 202 extends while curving at a predetermined angle, drawing a downward substantially parabolic curve from one end to the other in a front view. The upper chord member 201 and the lower chord member 202 are positioned at the same location in a plan view. The structure is further provided with an outer perimeter beam 300 that connects the other ends of the beam structures 200. Therefore, because the wheel-shaped structure 1 has a polygonal shape, the frame does not need to be curved, and the upper performance equipment 412 can be accommodated without increasing the building height. Thus, the wheel-shaped structure 1 contributes to improved constructability and reduced construction costs, and enables the construction of a facility that can be used for multiple purposes.

[0044] Although embodiments of the wheel-shaped structure 1 according to the present invention have been described above, the present invention is not limited to the above embodiments and can be modified as appropriate without departing from the spirit of the invention.

[0045] In this invention, the beam structure 200 does not need to have a truss structure as long as bending rigidity is ensured, and its configuration is not limited. Also, the wheel-shaped structure 1 is not limited in its members as long as bending rigidity is ensured. For example, the beam structure 200 may be a cable structure constructed of cable materials, or it may be a grid structure constructed of wood.

[0046] In this invention, the central ring 100 is not limited to a structure having diagonal members, but may be, for example, a Vierendeel truss structure. It does not have to be a truss as long as it has the necessary rigidity.

[0047] In the present invention, the wheel-shaped structure 1 may be applied to facilities other than theater-type facilities, and the seating area 502 may be omitted. For example, it could be applied to facilities such as modern art museums that lack 502 seats and require a large space and theatrical equipment.

[0048] In the present invention, the upper display equipment 412 may be usable while housed in the storage space 400. For example, the upper stage equipment 412 may be equipped with sound equipment. In that case, the upper stage equipment 412 may be used as one of the sound generating devices that constitute the three-dimensional sound when used for concerts, etc., while housed in the accommodation space 400.

[0049] In the present invention, the lower suspension mechanism 421 and the lower performance equipment 422 may be provided in locations other than the central ring 100. For example, the lower suspension mechanism 421 and the lower performance equipment 422 may be provided at the bottom of the lower chord member 202.

[0050] In this invention, there may be multiple upper and lower performance equipment 412s. Furthermore, the upper and lower performance equipment 422s may be used simultaneously. For example, the upper stage equipment 412 may consist of two monitors. The lower stage equipment 422 may consist of multiple stage lights, each individually connected to the lower suspension mechanism 421. In this case, the upper stage equipment 412 and the lower stage equipment 422 are positioned in different locations in a plan view and do not interfere with each other during their raising and lowering movements, so they can be used simultaneously. As a result, the wheel-type structure 1 of the present invention can be more preferably used for a variety of purposes.

[0051] In the present invention, the wheel-shaped structure 1 does not have to have a point-symmetric and line-symmetric shape with respect to the central ring 100 in a plan view. For example, the wheel-shaped structure 1 may have a roughly spiral shape. In that case, the central ring 100 is positioned at the center of gravity of the wheel-shaped structure 1 in a plan view.

[0052] In this invention, the beam structure 200 is not limited in shape. Furthermore, the upper chord member 201 and the lower chord member 202 may be connected to the outer perimeter beam 300 via other members. For example, the beam structure 200 may be rectangular in shape without curved surfaces in a plan view. In that case, the outer perimeter beam 300 is positioned at the outer end of the upper chord member 201, and the lower chord member 202 is connected to the column 501. Furthermore, for example, both the upper chord member 201 and the lower chord member 202 may extend while curving at a predetermined angle so as to trace an upward, substantially parabolic curve from one end to the other when viewed from the front.

[0053] In the present invention, the upper chord member 201 and the lower chord member 202 may be formed by connecting a plurality of members. For example, the upper chord member 201 and the lower chord member 202 may be elongated members formed by connecting a rod-shaped member located inside the chord connecting member 203a and a rod-shaped member located outside the chord connecting member 203a in the radial direction R. Furthermore, in the present invention, the material of the central ring 100 may be a non-ferrous metal material, an inorganic material such as reinforced ceramic, a concrete-based material, a resin-based material including FRP, or a composite material thereof, and is not limited to steel.

[0054] In the present invention, the central ring 100, the other ends of the multiple beam structures 200, and the outer perimeter beams 300 do not have to be similar in shape, and their shapes are not limited. For example, the wheel-shaped structure 1 may, in plan view, comprise a square-shaped central ring 100, the other end of an octagonal beam structure 200, and an outer perimeter beam 300. Furthermore, for example, the wheel-shaped structure 1 may, in a plan view, comprise a square-shaped central ring 100, the other end of a substantially circular beam structure 200 having 20 beam structures 200, and outer perimeter beams 300. As a result, the wheel-shaped structure 1 of the present invention can be made into various shapes. Furthermore, the wheel-shaped structure 1 of the present invention can have bending rigidity suitable for its shape.

[0055] In the present invention, the upper chord member 201 and the lower chord member 202 may be positioned at different locations in a plan view. For example, the beam structure 200 may consist of a plurality of upper chord members 201 arranged in parallel and a plurality of lower chord members 202 arranged radially.

[0056] In the present invention, the central ring 100, the beam structure 200, and the outer perimeter beam 300 do not necessarily have to be formed from cylindrical steel members. For example, the central ring 100, the beam structure 200, and the outer perimeter beam 300 may all be made of H-shaped steel.

[0057] In the present invention, the central ring 100 and the beam structure 200 may be equipped with a seismic damping structure. For example, the ring connector 103 and the string connector 203 may be equipped with seismic dampers. Therefore, the structure of the central ring 100 and beam structure 200 of the present invention is not limited.

[0058] In the present invention, the string connecting member 203d and the bundle member 104 may be the same component. For example, the string connecting member 203 includes a bundle member 104, one end of which is connected to the upper part of the outer ring 102 and the other end of which is connected to the lower part 205 of the upper chord member, and a string connecting member 203a, which is positioned parallel to the height direction Z and radially R, outside the center of the lower chord member 202, and connects the upper part 206 of the lower chord member and the lower part 205 of the upper chord member. The string connecting member 203 also includes a string connecting member 203b, which connects the lower end of the string connecting member 203a to the upper end of the bundle member 104, and a string connecting member 203c, which connects the upper end of the string connecting member 203a to the lower end of the bundle member 104. [Explanation of symbols]

[0059] 1 Wheel type structure 100 Central Ring 101 Inner Ring 102 Outer ring 103, 103aB, 103cB, 103cD, 103eD, 103dE, 103fE Ring connectors 104 Bundle material 200, 200a, 200b, 200c, 200d, 200e, 200f beam structure (beam) 201 Top chord material 202 Lower chord 203, 203a, 203b, 203c, 203d String connector 300 Perimeter beam 400 storage space 411 Upper suspension mechanism 412 Upper stage equipment 421 Lower suspension mechanism 422 Lower stage equipment

Claims

1. In plan view, the central ring is arranged in a polygonal shape, It comprises multiple elongated beams, One end of the beam is connected to the central ring, The other end is provided to extend toward the outer periphery. The bending rigidity of the central ring is set to be higher than that of the beam. One end of the outer periphery of the multiple beams forms a polygonal outer periphery in a plan view. Wheel-shaped structure.

2. The central ring is formed in a polygonal shape in a plan view, having an angle of 1 / 2 or less of the number of beams arranged radially. The wheel-shaped structure according to claim 1.

3. The aforementioned central ring is An inner ring formed in a polygonal shape, It comprises an outer ring positioned outside the inner ring and formed in a polygonal shape, The inner ring and the outer ring are arranged so that their centers coincide in a plan view, and are connected by a plurality of ring connecting members. The wheel-shaped structure according to claim 2.

4. The beam has an elongated upper chord that extends from one end to the other, passing over the upper part of the central ring, It has a long lower chord member, one end of which is connected perpendicularly to the outer circumference of the outer ring, and the other end which extends toward the outer circumference, The upper chord member and the central ring are connected by a plurality of bundle members. The wheel-shaped structure according to claim 3.

5. A housing space is formed inside the inner ring, the upper chord member, and the bundle member. An upper suspension mechanism is provided at the top of the aforementioned storage space. The aforementioned upper suspension mechanism is connected to the upper performance equipment, The upper display equipment, suspended by the upper suspension mechanism, is provided to be retractable into and out of the storage space. The wheel-shaped structure according to claim 4.

6. The aforementioned central ring is provided with a lower suspension mechanism. The aforementioned lower suspension mechanism is connected to the lower performance equipment, The lower performance equipment, suspended by the lower suspension mechanism, is provided below the upper performance equipment so as to be able to move up and down. The wheel-shaped structure according to claim 5.

7. Multiple of the aforementioned beams are arranged radially, The upper chord extends, in a front view, curving at a predetermined angle so as to trace an upward, approximately parabolic curve from one end to the other. The lower chord extends, curving at a predetermined angle from one end to the other in a roughly parabolic downward trajectory when viewed from the front. The upper chord and the lower chord are positioned at the same location in a plan view and connected by multiple chord connecting members. The system includes an outer perimeter beam that connects the outer ends of the multiple upper chord members and the outer ends of the multiple lower chord members, The wheel-shaped structure according to claim 4.

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