JP2020020169A - Retractable roof structure - Google Patents

Abstract

To suppress a problem which occurs in a connection portion between a fixed roof and a movable roof during an earthquake.SOLUTION: The retractable seismic isolation roof structure 20 has an opening 36, a fixed roof 30 supported by a first seismic isolation device 38, a movable roof 40 connected to the fixed roof 30 and opening and closing the opening 36, and a displacement absorbing member 92 provided at a connecting portion 90 between the fixed roof 30 and the movable roof 40 so that the fixed roof 30 and the movable roof 40 are relatively movable.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an openable and separable roof structure.

  A fixed roof, a movable roof that opens and closes the opening of the fixed roof by moving with respect to the fixed roof, an annular roadbed that supports the fixed roof and the movable roof, and a plurality of seismic isolation devices that support the annular roadbed 2. Description of the Related Art An openable roof is known (for example, see Patent Document 1).

JP-A-4-14543

  However, with the openable roof disclosed in Patent Literature 1, if the swing of the fixed roof and the movable roof increases during an earthquake, there is a possibility that a problem may occur in the connection between the fixed roof and the movable roof.

  The present invention has been made in consideration of the above-described circumstances, and has as its object to suppress a problem that occurs in a connection portion between a fixed roof and a movable roof during an earthquake.

  The open / close seismic isolation roof structure according to claim 1, having an opening, a fixed roof supported by the first seismic isolation device, and a movable roof connected to the fixed roof and opening and closing the opening. A displacement absorbing member is provided at a connection portion between the fixed roof and the movable roof, and enables relative displacement between the fixed roof and the movable roof.

  According to the openable seismic isolation roof structure of the first aspect, the fixed roof has an opening and is supported by the first seismic isolation device. A movable roof is connected to the fixed roof. The movable roof opens and closes the opening of the fixed roof. A displacement absorbing member that allows relative displacement between the fixed roof and the movable roof is provided at a connection portion between the fixed roof and the movable roof.

  Thereby, the relative displacement between the fixed roof and the movable roof during the earthquake is absorbed by the displacement absorbing member. Therefore, a problem that occurs at a connection portion between the fixed roof and the movable roof is suppressed.

  The openable seismic isolation roof structure according to claim 2 is the openable seismic isolated roof structure according to claim 1, wherein the movable roof is supported by a second seismic isolation device.

  According to the open-close type seismic isolation roof structure according to claim 2, the fixed roof is supported by the first seismic isolation device. On the other hand, the movable roof is supported by the second seismic isolation device. That is, in the present invention, the fixed roof and the movable roof are seismically isolated.

  Here, as a comparative example, if the fixed roof is seismically isolated, but the movable roof is not seismically isolated, the relative displacement between the fixed roof and the movable roof during an earthquake may increase.

  In contrast, in the present invention, as described above, the fixed roof and the movable roof are seismically isolated. Therefore, at the time of an earthquake, the trouble that occurs at the connecting portion between the fixed roof and the movable roof is further suppressed.

  The openable seismic isolation roof structure according to claim 3, wherein the first support structure, a fixed roof having an opening, and supported by the first support structure via a first seismic isolation device, And a movable roof that is supported by the second support structure via a second seismic isolation device and that opens and closes the opening of the fixed roof.

  According to the opening / closing seismic isolation roof structure of claim 3, the fixed roof has an opening and is supported by the first support structure via the first seismic isolation device. The opening of the fixed roof is opened and closed by a movable roof. The movable roof is supported by the second support structure via the second seismic isolation device. That is, in the present invention, the fixed roof and the movable roof are seismically isolated.

  Here, as a comparative example, if the fixed roof is seismically isolated, but the movable roof is not seismically isolated, the relative displacement between the fixed roof and the movable roof during an earthquake may increase.

  In contrast, in the present invention, as described above, the fixed roof and the movable roof are seismically isolated. Therefore, at the time of an earthquake, a problem that occurs at a connection portion between the fixed roof and the movable roof is suppressed.

  As described above, according to the openable seismic isolation roof structure of the present invention, it is possible to suppress problems that occur at the connection between the fixed roof and the movable roof during an earthquake.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows the structure to which the opening-and-closing type seismic isolation roof structure which concerns on one Embodiment was applied. FIG. 2 is a plan view showing a state where a pair of movable roofs shown in FIG. 1 has moved to an open position. FIG. 3 is a sectional view taken along line 3-3 of FIG. 1. FIG. 4 is an enlarged elevation view showing the lower moving mechanism shown in FIG. 3. FIG. 4 is an enlarged elevation view showing the upper moving mechanism shown in FIG. 3. It is an expansion elevation corresponding to FIG. 4 which shows the modification of the movable roof which concerns on one Embodiment. (A) is sectional drawing corresponding to FIG. 3 which shows typically the structure shown in FIG. 1, (B) and (C) are the modification examples of the openable-type seismic isolation roof structure which concerns on one Embodiment. FIG. 4 is a cross-sectional view schematically corresponding to FIG. 3, showing a structure to which is applied. It is an expansion elevation corresponding to FIG. 4 which shows the modification of the movable roof which concerns on one Embodiment.

  Hereinafter, an openable seismic isolation roof structure according to an embodiment will be described with reference to the drawings.

(Structure)
FIG. 1 and FIG. 2 show a structure 10 to which the openable seismic isolation roof structure 20 according to the present embodiment is applied. The structure 10 has a large space (internal space 24) inside, and is a sports event facility such as a stadium for baseball, soccer, athletics, or the like, or a concert hall.

  As shown in FIG. 3, the structure 10 includes a structure main body 12, an opening / closing roof 22, a first seismic isolation device 38, a movable roof foundation 50, and a second seismic isolation device 70. .

(Struct body)
As shown in FIGS. 1 and 2, the structure main body 12 is formed in a circular shape in a plan view. As shown in FIG. 3, the structure body 12 has a base portion 12A and a stand portion 12B. The structure main body 12 is an example of a first support structure.

  The base part 12A is provided in the excavation part 14 of the ground G. The excavation part 14 is formed by digging the ground G in a concave shape. The excavated bottom 14L of the excavated portion 14 is a flat surface. A base portion 12A is provided along the excavated bottom 14L of the excavated portion 14.

  The base part 12A is a reinforced concrete base slab (base slab). The upper surface of the base portion 12A is a flat surface. The upper surface of the base portion 12A is a field 16 such as a baseball field. The field 16 is provided with, for example, a natural turf or an artificial turf (not shown). A stand portion 12B surrounding the field 16 is provided on an outer peripheral portion of the base portion 12A.

  The stand portion 12B is made of, for example, reinforced concrete, and stands up from the outer peripheral portion of the base portion 12A. The height of the stand 12B is increased from the field 16 toward the outer periphery of the base 12A. A plurality of spectator seats (not shown) are provided in a stepped manner on the inclined portion 18 on the field 16 side of the stand portion 12B.

  1 and 2, the structure body 12 (stand portion 12B) of the present embodiment is formed in a crescent shape in plan view, and surrounds the field 16 over half a circumference. However, the shape and size of the structure body 12 can be appropriately changed. Further, the stand portion 12B is not limited to the reinforced concrete structure, but may be a steel frame structure or the like.

(Opening and closing roof)
As shown in FIG. 3, the opening / closing roof 22 is formed in a dome shape, and covers the field 16 and the stand 12B from above. An internal space 24 is formed below the openable roof 22. The open / close roof 22 is openable / closable. The openable roof 22 has a fixed roof 30 and a pair of movable roofs 40.

(Fixed roof)
The fixed roof 30 is a fixed roof fixed to the structure body 12. The fixed roof 30 has a plurality of fixed roof beams 32 and a roof material 34. The plurality of fixed roof beams 32 are, for example, steel frames. Note that the fixed roof beam 32 is not limited to a steel structure, and may be a reinforced concrete structure or the like.

  As shown in FIGS. 1 and 2, the plurality of fixed roof beams 32 are joined in a well shape (lattice shape) in plan view. These fixed roof beams 32 support a roofing material 34. The roof material 34 is formed of, for example, a steel plate, a folded plate, a film material, or the like, and is stretched over the plurality of fixed roof beams 32.

  As shown in FIG. 2, the fixed roof 30 has an opening 36 that opens the internal space 24. The opening 36 is formed in a rectangular shape in plan view, and is arranged near one end of the fixed roof 30. In addition, the roof material 34 is not provided in the opening 36. The opening 36 enables the solar radiation to be secured to the natural turf and the like on the field 16, the ventilation of the internal space 24, and the like. The opening 36 can be opened and closed by a pair of movable roofs 40 described later.

(First seismic isolation device)
The fixed roof 30 has a seismic isolation structure. Specifically, both ends of the fixed roof beam 32 in the material axis direction are supported by the structure main body 12 via the first seismic isolation device 38, respectively. The first seismic isolation device 38 is a laminated rubber bearing. With these first seismic isolation devices 38, the fixed roof 30 is seismically isolated (seismically isolated support). The first seismic isolation device 38 is not limited to a laminated rubber bearing, and may be a sliding bearing, a rolling bearing, or the like.

(Movable roof)
The pair of movable roofs 40 is a movable roof that is connected to the fixed roof 30 and opens and closes the opening 36 of the fixed roof 30. The pair of movable roofs 40 can be moved laterally with respect to the fixed roof 30 by a lower moving mechanism 60 and an upper moving mechanism 80 described later.

  More specifically, the pair of movable roofs 40 is a double sliding door type that moves (slides) to both sides of the opening 36, and closes the opening 36 of the fixed roof 30 (the position shown in FIG. 1). ) And an open position (the position shown in FIG. 2) for opening the opening 36 of the fixed roof 30.

  In the following, the moving direction (lateral direction) of the movable roof 40 indicated by the arrow S is referred to as the opening / closing direction of the movable roof 40.

  The pair of movable roofs 40 is formed in a rectangular shape in plan view. Each movable roof 40 has a plurality of movable roof beams 42 (see FIG. 3) and a roof material 44. The plurality of movable roof beams 42 are made of steel, and are arranged, for example, along the outer periphery of the movable roof 40. These movable roof beams 42 support a roofing material 44. The roof material 44 is formed of, for example, a steel plate, a folded plate, a film material, or the like, and is stretched over the pair of movable roof beams 42. 1 and 2, illustration of the movable roof beam 42 is omitted.

(Lower moving mechanism)
As shown in FIG. 4, the lower end 40 </ b> L of the movable roof 40 is supported (coupled) to the movable roof foundation 50 via the lower moving mechanism 60. The lower moving mechanism 60 supports the lower end portion 40L of the movable roof 40 so as to be movable (slidable) in the opening and closing direction of the movable roof 40.

  The lower moving mechanism 60 includes a pair of rails 62 extending in the opening and closing direction of the movable roof 40, and a traveling carriage 64 traveling on the pair of rails 62. The pair of rails 62 are laid on the movable roof foundation 50 in parallel with each other. The lower moving mechanism 60 is an example of a moving mechanism.

  As shown in FIGS. 1 and 2, the movable roof foundation 50 is disposed adjacent to the lower edge 36 </ b> L of the opening 36 and is separate from the structure main body 12. The movable roof base 50 is a strip-shaped slab (soil slab) extending in the opening and closing direction of the movable roof 40. The movable roof base 50 extends from the opening 36 to both sides in the opening and closing direction of the movable roof 40 in plan view. As shown in FIG. 3, the movable roof foundation 50 is provided in an excavated portion formed by excavating the ground G.

  Note that the movable roof foundation 50 is an example of a second support structure.

  The traveling trolley 64 has a trolley main body 66 and a pair of wheels 68 provided on the trolley main body 66. The bogie main body 66 is movably mounted on a pair of rails 62 via a pair of wheels 68. The bogie main body 66 has a drive source such as a motor (not shown) that rotationally drives the pair of wheels 68. By driving the pair of wheels 68 by this drive source, the bogie main body 66 runs on the pair of rails 62.

  Note that each wheel 68 is provided with a derailment preventing rib 69 for preventing the wheel from derailing from the rail 62. The traveling vehicle 64 has, for example, a lock mechanism (not shown) that grips the pair of rails 62 and disables traveling of the traveling vehicle 64. By disabling the traveling carriage 64 by this lock mechanism, the pair of movable roofs 40 is fixed to the movable roof base 50.

(Second seismic isolation device)
The movable roof 40 has a seismic isolation structure. Specifically, the lower end 40L of the movable roof 40 (the movable roof beam 42) is fixed to the bogie main body 66 of the traveling bogie 64 via the second seismic isolation device 70. The second seismic isolation device 70 is a laminated rubber bearing. The second seismic isolation device 70 includes a device main body 72 such as a laminated rubber, a lower flange portion 74 provided at a lower end portion of the device main body 72, and an upper flange portion 76 provided at an upper end portion of the device main body 72. have. The lower flange portion 74 is fixed to the upper surface of the bogie main body 66. On the other hand, the upper flange portion 76 is fixed to the lower end portion 40L of the movable roof 40.

  The second seismic isolation device 70 is not limited to a laminated rubber bearing, but may be a sliding bearing, a rolling bearing, or the like.

(Upper moving mechanism)
As shown in FIG. 5, the upper end 40 </ b> U of the movable roof 40 is connected to the fixed roof 30 via the upper moving mechanism 80. The upper moving mechanism 80 supports the upper end 40U of the movable roof 40 so as to be movable (slidable) in the opening and closing direction of the movable roof 40. The upper moving mechanism 80 includes a pair of rails 82 extending in the opening and closing direction of the movable roof 40, and a traveling cart 84 traveling on the pair of rails 82.

  The upper moving mechanism 80 has the same configuration as the lower moving mechanism 60. The upper moving mechanism 80 is an example of a moving mechanism.

  As shown in FIG. 2, the pair of rails 82 are laid in parallel with each other along the upper edge 36 </ b> U of the opening 36. The pair of rails 82 extend from the opening 36 to both sides in the opening and closing direction of the movable roof 40 in a plan view.

  As shown in FIG. 5, the traveling carriage 84 has a carriage main body 86 and a pair of wheels 88 provided on the carriage main body 86. The bogie main body 86 is movably mounted on a pair of rails 82 via a pair of wheels 88. The pair of wheels 88 is provided with a derailing prevention rib 89 for preventing the derailing from the pair of rails 82. The traveling carriage 84 has a lock mechanism (not shown). By disabling the traveling carriage 84 by this lock mechanism, the pair of movable roofs 40 is fixed to the fixed roof 30.

(Displacement absorbing member)
A connecting portion 90 between the fixed roof 30 and the movable roof 40 is provided with a displacement absorbing member 92 that enables the fixed roof 30 and the movable roof 40 to be relatively displaceable. Specifically, the displacement absorbing member 92 is provided between the bogie main body 86 of the traveling bogie 84 and the upper end 40U of the movable roof 40 (the movable roof beam 42).

  The displacement absorbing member 92 is a laminated rubber bearing. The displacement absorbing member 92 includes an absorbing member body 94 such as a laminated rubber, a lower flange portion 96 provided at a lower end portion of the absorbing member body 94, and an upper flange portion 98 provided at an upper end portion of the absorbing member body 94. And

  The lower flange portion 96 is fixed to the upper surface of the bogie main body 86. On the other hand, the upper flange 98 is fixed to the upper end 40U of the movable roof 40. Due to the deformation (shear deformation) of the displacement absorbing member 92, the fixed roof 30 and the movable roof 40 can be relatively displaced.

  The displacement absorbing member 92 is not limited to a laminated rubber bearing, but may be a sliding bearing, a rolling bearing, an elastic body, a viscoelastic body, or the like.

(Action)
Next, the operation of the present embodiment will be described.

  According to the openable seismic isolation roof structure 20 according to the present embodiment, the fixed roof 30 has the opening 36. The opening 36 can be opened and closed by a pair of movable roofs 40. Specifically, the lower ends 40L of the pair of movable roofs 40 are connected to the movable roof base 50 via the lower moving mechanism 60, and the upper ends 40U of the pair of movable roofs 40 are connected via the upper moving mechanism 80. To the fixed roof 30. The lower moving mechanism 60 and the upper moving mechanism 80 move the pair of movable roofs 40 between a closed position for closing the opening 36 of the fixed roof 30 and an open position for opening the opening 36 of the fixed roof 30. It is possible.

  Accordingly, when the pair of movable roofs 40 is moved from the open position to the closed position to close the opening 36, a sport or an event can be performed in the internal space 24 of the structure 10 without being affected by the weather. On the other hand, when the pair of movable roofs 40 is moved from the closed position to the open position and the opening 36 is opened, for example, it is possible to secure the solar radiation on the natural grass and the like of the field 16 and to ventilate the internal space 24. .

  The opening / closing direction (the direction of the arrow S) of the pair of movable roofs 40 is the horizontal direction. Thereby, in the present embodiment, the power (electric power or the like) when the pair of movable roofs 40 moves can be reduced as compared with the case where the opening and closing direction of the movable roof 40 is the vertical direction.

  Further, a pair of movable roofs 40 is of a double sliding door type that moves to both sides of the opening 36. Thus, in the present embodiment, the weight and the moving amount of each movable roof 40 are reduced as compared with the single sliding door type in which one openable roof moves to one side of the opening 36. Therefore, power (electric power etc.) at the time of movement of the pair of movable roofs 40 can be further reduced.

  The pair of movable roofs 40 is fixed to the fixed roof 30 and the movable roof base 50 by a lock mechanism (not shown) except when the opening 36 is opened and closed. Accordingly, opening and closing of the opening 36 during an earthquake is suppressed.

  Further, the fixed roof 30 is supported by the structure main body 12 via the first seismic isolation device 38. Similarly, the pair of movable roofs 40 is supported on the movable roof foundation 50 via the second seismic isolation device 70. That is, in the present embodiment, the entirety of the fixed roof 30 and the pair of movable roofs 40 is seismically isolated (seismically isolated support) by the first seismic isolation device 38 and the second seismic isolation device 70. Thereby, the seismic force generated on the fixed roof 30 and the pair of movable roofs 40 during an earthquake is reduced. Therefore, the seismic performance of the fixed roof 30 and the pair of movable roofs 40 is improved.

  Here, if the swing of the fixed roof 30 and the movable roof 40 increases during an earthquake, a problem may occur in the connecting portion 90 between the fixed roof 30 and the movable roof 40.

  As a countermeasure against this, in the present embodiment, a displacement absorbing member 92 is provided at a connecting portion 90 between the fixed roof 30 and the movable roof 40. Thereby, the relative displacement between the fixed roof 30 and the movable roof 40 during the earthquake is absorbed by the deformation (shear deformation) of the displacement absorbing member 92. Therefore, a problem that occurs in the connecting portion 90 between the fixed roof 30 and the movable roof 40 is suppressed.

  In addition, the fixed roof beam 32 and the movable roof beam 42 of the present embodiment are made of steel. Therefore, for example, when the fixed roof beam 32 and the movable roof beam 42 thermally expand due to solar radiation or the like, the fixed roof beam 32 and the movable roof beam 42 are relatively displaced, and there is a possibility that a failure occurs in the connecting portion 90 thereof.

  On the other hand, in the present embodiment, as described above, the displacement absorbing member 92 is provided at the connecting portion 90 between the fixed roof 30 and the movable roof 40. Thereby, the relative displacement between the fixed roof 30 and the movable roof 40 due to thermal expansion is absorbed by the deformation (shear deformation) of the displacement absorbing member 92. Therefore, a problem that occurs in the connecting portion 90 between the fixed roof 30 and the movable roof 40 is suppressed.

  As a comparative example, when the fixed roof 30 is seismically isolated, but the movable roof 40 is not seismically isolated, the relative displacement between the fixed roof 30 and the movable roof 40 during an earthquake may increase. In this case, a problem easily occurs in the connecting portion 90 between the fixed roof 30 and the movable roof 40.

  On the other hand, in the present embodiment, as described above, the fixed roof 30 and the movable roof 40 are seismically isolated. Thus, in the present embodiment, the relative displacement between the fixed roof 30 and the movable roof 40 during an earthquake is reduced. Therefore, at the time of an earthquake, the trouble that occurs in the connecting portion 90 between the fixed roof 30 and the movable roof 40 is further suppressed.

(Modification)
Next, a modification of the above embodiment will be described.

  In the modification shown in FIG. 6, the lower end of the movable roof 40 is connected to the second seismic isolation device 70 via the hinge mechanism 100. The hinge mechanism 100 has a pair of hinge bases 102, a rotating shaft 104, and a hinge bracket 106.

  The hinge base 102 is fixed to the upper flange portion 76 of the second seismic isolation device 70 by a bolt or the like (not shown). The hinge base 102 is connected to a hinge bracket 106 via a rotating shaft 104 extending in the opening and closing direction of the movable roof 40.

  The hinge bracket 106 is fixed to the lower end 40L of the movable roof 40. Thus, the lower end 40L of the movable roof 40 is connected to the second seismic isolation device 70 via the hinge mechanism 100. In other words, the lower end portion 40L of the movable roof 40 is rotatably connected to the second seismic isolation device 70 in an out-of-plane direction (the direction of the arrow R, the direction of the arrow K in FIG. 3) of the movable roof 40 about the rotation axis 104. Have been.

  Here, in the event of an earthquake, for example, as shown in FIG. 3, when the movable roof 40 swings in an out-of-plane direction (the direction of the arrow K), the lower end portion 40L of the movable roof 40 and the second seismic isolation device 70 are connected. There is a possibility that a malfunction occurs in the part. Further, in this case, a bending moment acts on the second seismic isolation device 70, and a failure may occur in the second seismic isolation device 70.

  On the other hand, in the present modification, as described above, the lower end 40L of the movable roof 40 is connected to the second seismic isolation device 70 via the hinge mechanism 100. Thus, when the movable roof 40 swings out of plane during an earthquake, the lower end 40L of the movable roof 40 is moved out of the plane of the movable roof 40 about the rotation shaft 104 with respect to the second seismic isolation device 70. To rotate.

  Therefore, a problem that occurs at a connecting portion between the lower end portion 40L of the movable roof 40 and the second seismic isolation device 70 is suppressed. Further, the bending moment acting on the second seismic isolation device 70 is also reduced. Therefore, troubles occurring in the second seismic isolation device 70 are suppressed.

  Although not shown, the hinge mechanism 100 may be provided at a connecting portion between the upper end 40U of the movable roof 40 and the fixed roof 30. Specifically, the upper end 40U of the movable roof 40 is connected to the displacement absorbing member 92 via the hinge mechanism 100. Thereby, when the movable roof 40 swings out of plane during an earthquake, the upper end 40U of the movable roof 40 rotates about the rotation shaft 104 with respect to the displacement absorbing member 92. Therefore, a problem that occurs at a connection portion between the upper end portion 40U of the movable roof 40 and the displacement absorbing member 92 is suppressed.

  Next, FIG. 7A schematically shows a structure 10 to which the openable seismic isolation roof structure 20 according to the above embodiment is applied. On the other hand, FIG. 7B schematically shows a structure 10 to which the opening / closing seismic isolation roof structure 110 according to the modification is applied. In this openable seismic isolation roof structure 110, the displacement absorbing member 92 (see FIG. 7A) is omitted.

  Specifically, in the openable seismic isolation roof structure 110, the displacement absorbing member 92 (see FIG. 7A) is not provided at the connecting portion 90 between the upper end 40U of the movable roof 40 and the fixed roof 30. The upper end 40 </ b> U of the movable roof 40 is connected to the fixed roof 30 via the upper moving mechanism 80. On the other hand, the lower end 40L of the movable roof 40 is connected to the movable roof base 50 via the second seismic isolation device 70 and the lower moving mechanism 60, as in the above embodiment.

  By omitting the displacement absorbing member 92 in this manner, costs can be reduced. On the other hand, the movable roof 40 is supported by the second seismic isolation device 70. Therefore, as described above, the amount of relative displacement between the fixed roof 30 and the movable roof 40 during an earthquake is reduced. Therefore, in the present modification, it is possible to suppress a problem that occurs in the connecting portion 90 between the movable roof 40 and the fixed roof 30 during an earthquake while reducing costs.

  Further, the fixed roof 30 is supported by the structure body 12, and the movable roof 40 is supported by a movable roof foundation 50. Thereby, in this modification, the degree of freedom of the support structure that supports the fixed roof 30 and the movable roof 40 can be increased as compared with the case where the fixed roof 30 and the movable roof 40 are supported by the same support structure. it can.

  Next, in a modification shown in FIG. 7C, the second seismic isolation device 70 is omitted. Specifically, a displacement absorbing member 92 is provided at a connecting portion 90 between the upper end portion 40U of the movable roof 40 and the fixed roof 30. The upper end portion 40U of the movable roof 40 is moved by the displacement absorbing member 92 and the upward moving member. It is connected to the fixed roof 30 via a mechanism 80. On the other hand, the second seismic isolation device 70 is not provided at the connection between the lower end 40L of the movable roof 40 and the foundation 50 for the movable roof, and the lower end 40L of the movable roof 40 The movable roof is connected to the foundation 50 via a movable roof. That is, the movable roof 40 is not seismically isolated (seismically isolated) on the movable roof foundation 50 (non-seismic).

  By omitting the second seismic isolation device 70 in this way, costs can be reduced. On the other hand, a displacement absorbing member 92 is provided at a connecting portion 90 between the upper end portion 40U of the movable roof 40 and the fixed roof 30. Therefore, it is possible to suppress a problem that occurs in the connecting portion 90 between the upper end portion 40U of the movable roof 40 and the fixed roof 30 during an earthquake.

  7A and 7C, the upper moving mechanism 80 and the displacement absorbing member 92 may be configured to be upside down. Similarly, in FIGS. 7A and 7B, the lower moving mechanism 60 and the second seismic isolation device 70 may be configured to be upside down.

  For example, FIG. 8 shows a modification in which the lower moving mechanism 60 and the second seismic isolation device 70 are turned upside down. In this modification, the lower end 40L of the movable roof 40 is supported by the beam 120 via the lower moving mechanism 60. The beam 120 is, for example, a truss beam extending in the opening and closing direction of the movable roof 40.

  The beam 120 is supported by a plurality of columns 122 erected on the structure main body 12 (see FIG. 1) via the second seismic isolation device 70, respectively. The pillars 122 are made of, for example, reinforced concrete, steel reinforced concrete, or steel, and are arranged at intervals in the opening and closing direction of the movable roof 40. The pillar 122 is an example of a second support structure.

  Thus, even if the lower moving mechanism 60 and the second seismic isolation device 70 are turned upside down, the same effect as the above embodiment can be obtained. The pillar 122 may be erected separately from the structure main body 12. In this case, the pillar 122 is an example of a second support structure. Although not shown, the same effect as in the above embodiment can be obtained even when the upper moving mechanism 80 and the displacement absorbing member 92 are turned upside down.

  Next, in the above embodiment, the fixed roof 30 is supported by the stand portion 12B of the structure main body 12 via the first seismic isolation device 38, but the fixed roof is structured via the first seismic isolation device 38. The object body 12 may be supported by the base portion 12A.

  Further, in the above embodiment, the base part 12A for supporting the fixed roof 30 and the movable roof base 50 for supporting the movable roof 40 are separated from each other. May be integrated. That is, the first support structure and the second support structure may be separate bodies or may be integrated.

  The lower end 40L of the movable roof 40 may be supported by, for example, the base 12A or the stand 12B of the structure body 12, or may be supported by the fixed roof 30.

  Further, in the above embodiment, the opening and closing direction of the pair of movable roofs 40 is set to the horizontal direction, but the above embodiment is not limited to this. The opening / closing direction of the pair of movable roofs may be, for example, a curved direction along a dome-shaped fixed roof, or may be an oblique direction, an up-down direction, or the like.

  Further, in the above embodiment, the pair of movable roofs 40 is of a double sliding door type, but the movable roof may be of a single sliding door type, for example. Further, the configurations of the upper moving mechanism 80 and the lower moving mechanism 60 can be appropriately changed. Furthermore, the shape, arrangement, and number of the openings 36 of the fixed roof 30 can be changed as appropriate.

  As described above, one embodiment of the present invention has been described. However, the present invention is not limited to such an embodiment, and one embodiment and various modifications may be appropriately combined and used. Of course, the present invention can be implemented in various modes without departing from the scope of the present invention.

12 Structure body (first support structure)
Reference Signs List 20 openable seismic isolation roof structure 30 fixed roof 36 opening 38 first seismic isolation device 40 movable roof 50 movable roof foundation (second support structure)
70 second seismic isolation device 90 connection part (connection part between fixed roof and movable roof)
92 Displacement absorbing member 110 Opening / closing seismic isolation roof structure

Claims (3)

A fixed roof having an opening and supported by the first seismic isolation device,
A movable roof connected to the fixed roof and opening and closing the opening;
A displacement absorbing member that is provided at a connection portion between the fixed roof and the movable roof and enables relative displacement between the fixed roof and the movable roof,
Opening / closing seismic isolation roof structure equipped with. The movable roof is supported by a second seismic isolation device,
The openable seismic isolation roof structure according to claim 1. A first support structure;
A fixed roof having an opening and supported on the first support structure via a first seismic isolation device;
A second support structure;
A movable roof that is supported by the second support structure via a second seismic isolation device, and that opens and closes the opening of the fixed roof,
Opening / closing seismic isolation roof structure equipped with.