JP2015218458A - Quake-absorbing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a quake-absorbing structure capable of effectively absorbing vibrations acting on the structure with a simple structure.SOLUTION: The quake-absorbing structure includes: a base isolation column 8 which is disposed between plate members 9a and 9b as a first member and a second member in an inclinable manner; a tilt fulcrum forming member 11 that forms a supporting point E when the base isolation column 8 begins to incline; and a stopper member 12 that limits the inclination of the base isolation column 8. The stopper member 12 is a wire 12a which penetrates the base isolation column 8 and both ends thereof are connected to the plate members 9a and 9b.

Description

  The present invention relates to a seismic isolation structure that is applied to structures such as three-dimensional warehouses, boiler steel frames, three-dimensional parking, and cargo handling facilities to reduce the shaking of the structures.

  In general, a three-dimensional warehouse has a configuration in which a plurality of racks (shelves) are three-dimensionally assembled using a plurality of steel columns and a plurality of stages of steel beams. If a large-scale earthquake occurs, the three-dimensional warehouse may be damaged, and the load stored in the rack of the three-dimensional warehouse may fall and be damaged by the earthquake. It is considered that the warehouse is equipped with a seismic isolation structure to deal with earthquakes.

  As a base isolation structure of a three-dimensional warehouse, there is one having a base isolation structure made of laminated rubber between each lower end portion and a foundation of a plurality of columns constituting the three-dimensional warehouse (Patent Document 1). In addition, as a configuration in which the pillars of the three-dimensional warehouse are cut at the upper and lower halfway positions, the lower ends of the upper two pillars are connected by a horizontal first horizontal member, and the lower two parts corresponding to the upper two pillars. By connecting the upper end of the column with a horizontal second horizontal member engageable with the first horizontal member, the first horizontal member and the second horizontal member are slid in the longitudinal direction via a low friction member. There is one in which the first horizontal member and the second horizontal member are connected by a viscoelastic body (Patent Document 2).

JP 2006-104883 A JP 2013-039989 A

  However, as in Patent Document 1, when a base-isolated structure with laminated rubber is provided at the lower end of each column of a three-dimensional warehouse provided with a large number of columns, it is necessary to add a foundation or the laminated rubber is relatively expensive. Therefore, there is a problem that the equipment cost of the three-dimensional warehouse increases. Also in Patent Document 2, since it is necessary to provide the first horizontal member and the second horizontal member, and further to provide a viscoelastic body for connecting the first horizontal member and the second horizontal member, the structure is There is a problem that the equipment cost of the three-dimensional warehouse increases due to the complexity. Furthermore, in Patent Document 2, the direction for isolating the pillar is limited to the longitudinal direction in which the first horizontal member and the second horizontal member slide, and the direction orthogonal to the direction of the slide is There is a problem that seismic isolation is not possible.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a seismic isolation structure that can effectively isolate a vibration acting on a structure with a simple configuration.

The present invention provides a seismic isolation column disposed between the first member and the second member so as to freely tilt,
An inclined fulcrum forming member that forms a fulcrum when the seismic isolation column starts to tilt;
A stopper member for limiting the inclination angle when the seismic isolation column is inclined;
The stopper member is a seismic isolation structure that is a cord-like body.

  In the seismic isolation structure, it is preferable that the cord-like body of the stopper member is disposed so as to prevent the seismic isolation column from tilting beyond an inclination angle at which the seismic isolation column can be restored by its own weight.

  It is preferable that the cord-like body of the stopper member penetrates the seismic isolation column and both ends thereof are connected to the first member and the second member.

  The cord-like body of the stopper member may connect the seismic isolation column and at least one of the first member and the second member.

  According to the seismic isolation structure of the present invention, it is possible to achieve an excellent effect that the vibration acting on the structure can be effectively isolated with a simple configuration.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front sectional view which shows the 1st Example of the seismic isolation structure of this invention, Comprising: (a) is a figure which shows a normal state, (b) is a figure which shows the state at the time of the occurrence of an earthquake. It is a top view which shows the 1st Example of the seismic isolation structure of this invention, Comprising: (a) is IIa-IIa arrow line view of Fig.1 (a), (b) is IIb-IIb arrow of Fig.1 (a). FIG. 2C is a view taken along the arrow IIc-IIc in FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a front cross-section principal part enlarged view which shows the example of a wire end part fixing of the stopper member in 1st Example of the seismic isolation structure of this invention, Comprising: (a) used the wire by which the end color socket was attached to the edge part. The figure which shows an example, (b) is a figure which shows the example using the wire provided with the cylindrical compression process terminal part which forms a ring in an edge part, (c) is the wire to which the wire bolt was attached to the edge part It is a figure which shows the example using. (A) is a front view of the three-dimensional warehouse which is an example of the structure to which the seismic isolation structure of this invention is applied, (b) is a side view. FIG. 5 is an enlarged view of a main section of a front section showing a second embodiment of the seismic isolation structure of the present invention, wherein (a) is a bolt screwed to both ends of a bolt penetrating the seismic isolation column and an inclined fulcrum forming member; The figure which shows the example which spanned the wire between these, (b) is a figure which shows the example which spanned the wire between the volt | bolt screwed to the seismic isolation column, and the volt | bolt screwed to the member for inclination fulcrum formation. is there. FIG. 5 is an enlarged view of a main part of a front section showing a second embodiment of the seismic isolation structure of the present invention, wherein (a) is a bolt in which both ends of a wire penetrating the seismic isolation column are screwed to an inclined fulcrum forming member. The figure which shows the example hooked, (b) is a figure which shows the example hooked to the bolt which screwed the both ends of the wire hung around the outer periphery groove | channel of the seismic isolation column to the member for inclined fulcrum formation.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 to 4 show a first embodiment of the seismic isolation structure of the present invention.

  4 (a) and 4 (b) show a three-dimensional warehouse as an example of a structure to which the seismic isolation structure of the present invention is applied. The three-dimensional warehouse 100 as a structure includes a plurality of steel pillars 1. A plurality of racks 3 (shelves) are three-dimensionally assembled by providing a plurality of steel beams 2. The three-dimensional warehouse 100 is erected so as to sandwich the stacker crane 4, has a length extending along the traveling direction of the stacker crane 4, and is stored in a direction orthogonal to the traveling direction of the stacker crane 4. It has a narrow width corresponding to the size of the load. The plurality of pillars 1 constituting the three-dimensional warehouse 100 have high strength to support the weight of the load stored in the rack 3.

  And the seismic isolation structure 5 of this invention is provided in the some pillar 1 which comprises the three-dimensional warehouse 100 of FIG. As shown in FIG. 4, the seismic isolation structure 5 is provided at the same height position of the pillar 1 provided in the three-dimensional warehouse 100. The seismic isolation structure 5 is preferably installed at a height of about 1/3 to 1/2 from the top in order not to cause the entire three-dimensional warehouse 100 above the seismic isolation structure 5 to lock. Thus, even if the seismic isolation structure 5 is installed in the upper part of the three-dimensional warehouse 100, the upper side of the seismic isolation structure 5 becomes smaller due to the seismic isolation effect, and as a result, lower than the seismic isolation structure 5. It has been found by the present inventors that the side structure also has less shaking. 1 to 3 show a seismic isolation structure 5 that incorporates a seismic isolation device 5X, which will be described later, which is unitized independently from the structure to be seismically isolated.

  As shown in FIG. 1, the column 1 is composed of a plurality of column members 7 having horizontal flanges 6a and 6b at upper and lower ends. Between the horizontal flanges 6a and 6b of the two column members 7 arranged above and below, a seismic isolation column 8 that insulates the column 1 of the three-dimensional warehouse 100 by tilting is interposed via the plate-like members 9a and 9b. And can be tilted. Flange 10 as an overhanging portion is formed at both upper and lower ends of the seismic isolation column 8. The column member 7 and the seismic isolation column 8 are hollow square steel materials whose horizontal cross section has a rectangular shape, and the flange 10 also has a rectangular shape. The column member 7 and the seismic isolation column 8 are not limited to square steel materials, but may be H-type steel materials, I-type steel materials, Z-type steel materials, cylindrical steel materials, and the flange 10 is also rectangular. Not only the shape but also a circular shape may be used.

  The flange 10 of the seismic isolation column 8 has a square shape, but is not limited thereto, and may be, for example, a circular shape. Further, the flange 10 includes a rectangular shape having a long side and a short side, an ellipse having a long axis and a short axis, and further includes a part cut out.

  The horizontal displacement of the flange 10 is constrained by the inclined fulcrum forming member 11, and the fulcrum E when the seismic isolation column 8 starts to tilt is formed by the inclined fulcrum forming member 11. . The inclination angle when the seismic isolation column 8 is inclined is limited by the stopper member 12.

  As shown in FIGS. 1 and 2, the plate-like members 9a and 9b are rectangular metal plates that match the horizontal flanges 6a and 6b, and through-holes 9c of the fastening member 13 are formed at the four corners. The horizontal flanges 6a and 6b are detachably attached by fastening members 13 (bolts and nuts). The fastening member 13 is also used as an existing bolt and nut attached to the horizontal flanges 6a and 6b.

  Further, a sheet-like elastic material 15 made of thin rubber or the like is interposed between the plate-like members 9a, 9b attached to the horizontal flanges 6a, 6b and the flange 10.

  The inclined fulcrum forming member 11 is, for example, an acute angle steel, and each of the plate-like members 9a and 9b corresponding to the four sides of the rectangular flange 10 as shown in FIGS. 1 and 2A. In contrast, four pieces are attached with a small gap, and surrounds the four sides of the flange 10 of the seismic isolation column 8.

  In the first embodiment, the stopper member 12 is a wire 12a as a cord-like body that penetrates the seismic isolation column 8, and end collar sockets 12b are attached to both ends of the wire 12a. A socket 12b is connected to the plate-like members 9a and 9b. As shown in FIG. 3A, a passage hole 14 through which the end collar socket 12b and the wire 12a pass is formed in the center of the flange 10 and the sheet-like elastic material 15. A through hole 9d through which the wire 12a passes and a counterbore hole 9e for receiving the end collar socket 12b are formed in the center of the plate member 9a. As shown in FIG. 2B, the plate-like member 9a extends from the center of one side of the rectangular shape toward the through hole 9d and the counterbore 9e, and is used to pass the wire 12a when the wire 12a is installed. A slit 9f is formed. The width of the slit 9f is set larger than the outer diameter of the wire 12a and smaller than the outer diameter of the end collar socket 12b. The upper flange 10, the sheet-like elastic material 15, and the upper plate-like member 9 b are processed in the same manner as the lower side, but the slit 9 f formed in the upper plate-like member 9 b is shown in FIG. As shown in FIG. 9, the angle is shifted by 90 ° in the plane with respect to the slit 9 f of the plate-like member 9 a. This is to make it difficult for the upper and lower end collar sockets 12b of the wire 12a to come off when the end collar sockets 12b attached to both ends of the wire 12a are housed in the counterbore holes 9e. . The slits 9f are formed so as to extend in parallel with the sides of the rectangular plate-like members 9a and 9b, but it is needless to say that the slits 9f may be arranged obliquely at different angles.

  As shown in FIG. 1A, the wire 12a is held in a relaxed state in a normal state where no earthquake occurs, and as shown in FIG. 1B, the upper and lower horizontal flanges accompanying the occurrence of a large-scale earthquake. The upper and lower horizontal flanges 6a, 6a, 6b move to a tension state when the relative movement of the upper and lower horizontal flanges 6a, 6b at a position where the tilt angle is smaller than the limit tilt angle position at which the tilted seismic isolation column 8 can return to its original position without falling down. By tilting the relative movement 6b, the inclination angle of the seismic isolation column 8 is limited.

  In the first embodiment, the plate-like members 9a and 9b serve as a first member and a second member as attachment members for a structure to be seismically isolated. That is, the inclined fulcrum forming member 11 is attached to the plate member 9a, the seismic isolation column 8 is disposed between the plate members 9a and 9b, and both ends of the wire 12a of the stopper member 12 are attached to the plate member 9b. By connecting, the seismic isolation device 5X unitized independently from the structure to be seismically isolated is constructed, and the seismic isolation device 5X is assembled between the horizontal flanges 6a and 6b to constitute the seismic isolation structure 5 It is. Further, in the seismic isolation structure 5 incorporating the seismic isolation device 5X, the side of the flange 10 in which the planar shape of the seismic isolation column 8 is a square is arranged along the width direction and the depth direction of the three-dimensional warehouse 100. ing.

  Next, the operation of the first embodiment will be described.

  As shown in FIG. 1A, the seismic isolation column 8 is held vertically and the load applied to the column member 7 constituting the column 1 on the upper side of the seismic isolation column 8 is horizontal as shown in FIG. It is transmitted from the flange 6b and the plate-like member 9b to the lower column member 7 via the seismic isolation column 8 provided with the flange 10 at both upper and lower ends, the plate-like member 9a and the horizontal flange 6a. However, in FIG. 1A, the seismic isolation column 8 is held vertically even when a relatively small acceleration shake in the horizontal direction occurs in the column 1 due to the occurrence of a small-scale earthquake.

  That is, the flange 10 of the seismic isolation column 8 is pressure-bonded to the horizontal flanges 6 a and 6 b of the column member 7 via the plate-shaped members 9 a and 9 b and the sheet-like elastic material 15 due to the load applied to the column 1. At this time, the horizontal flanges 6a and 6b of the column member 7 are provided with the inclined fulcrum forming member 11 surrounding the outer periphery of the flange 10 of the seismic isolation column 8 via the plate-like member 9a. Is prevented from moving horizontally. Therefore, the seismic isolation column 8 is held vertically even if a relatively small acceleration fluctuation occurs in the horizontal direction due to a small-scale earthquake. This is because the moment when the base isolation column 8 is inclined by the acceleration in the horizontal direction does not exceed the moment when the base isolation column 8 is held in the vertical state by the vertical load supported by the base isolation column 8. As long as the seismic isolation column 8 is due to a trigger function that cannot be tilted.

  Here, when it is decided to use a rubber material for the sheet-like elastic material 15, the rubber material is an incompressible material with a small volume change compared to a metal, and when it receives a compressive load, it tends to bulge outward. Since the upper and lower surfaces are constrained, they cannot be deformed, and as a result, the compression load can be supported statically with high rigidity.

  On the other hand, as shown in FIG. 1 (b) due to the occurrence of a large-scale earthquake, when large acceleration swings in the horizontal direction, the upper column member 7 tries to stay in place due to inertia. The lower column member 7 is relatively moved in the horizontal direction. At this time, the flange 10 of the seismic isolation column 8 cannot move in contact with the inclined fulcrum forming member 11, but there is a gap between the inclined fulcrum forming member 11 and the flange 10 of the seismic isolation column 8. Therefore, a load exceeding the trigger load range acts on the flange 10 of the seismic isolation column 8 disposed via the plate-like members 9a and 9b with respect to the horizontal flanges 6a and 6b of the column member 7. In this case, the seismic isolation column 8 starts to tilt with the left and right sides of the flange 10 as the fulcrum E as shown in FIG. Thus, the transmission of a large seismic force in the horizontal and horizontal directions is reduced by the seismic isolation effect in which the seismic isolation column 8 is inclined.

  Here, even if the seismic isolation column 8 tends to be excessively inclined, the seismic isolation column 8 is moved by the transition of the wire 12a from the relaxed state shown in FIG. 1 (a) to the tensioned state shown in FIG. 1 (b). Inclination beyond the limit inclination angle position is prevented. As a result, there is no fear that the seismic isolation column 8 will fall, and it will be possible to reliably return to the original position.

  Incidentally, when the seismic isolation column 8 is tilted and swings, an operation occurs such that the flange 10 is opened and closed with respect to the plate-like members 9a and 9b attached to the horizontal flanges 6a and 6b, and the contact load is increased. Occur. For the opening / closing operation of the flange 10, the sheet-like elastic material 15 interposed between the plate-like members 9a, 9b attached to the horizontal flanges 6a, 6b and the flange 10 acts as a cushioning material. Contact load can be reduced. In addition, by installing a cushioning material such as rubber between the inclined fulcrum forming member 11 and the flange 10, it is possible to suppress a contact load when the flange 10 contacts the inclined fulcrum forming member 11. . Moreover, if the spring rigidity of the sheet-like elastic material 15 such as rubber is used, the restoring force of the seismic isolation column 8 can be adjusted. Since the rubber material is inexpensive, the contact load can be suppressed at a low cost. Also, since the rubber material has less deterioration as the free surface is smaller, if it is used between the plate-like members 9a, 9b attached to the horizontal flanges 6a, 6b and the flange 10, it can be used without replacement for a long time. Is possible. The sheet-like elastic material 15 may use a foam material instead of a rubber material. In this case, the restoring force is smaller than that of the rubber material, but it can be expected to increase the effect of suppressing the contact load. Moreover, the sheet-like elastic material 15 may be removed from the configuration of the seismic isolation structure 5 instead of the essential configuration of the seismic isolation structure 5 incorporating the seismic isolation device 5X.

  In the case where a large acceleration swing occurs in the horizontal depth direction, the large seismic isolation column 8 is similarly tilted in the depth direction so that the large acceleration swing in the horizontal depth direction is isolated. Thus, by providing the seismic isolation structure 5 having a simple configuration, it is possible to effectively isolate the vibration acting on the pillar 1 of the three-dimensional warehouse 100 in the horizontal biaxial direction.

  Further, since the fastening member 13 is configured to use the existing bolts and nuts attached to the horizontal flanges 6a and 6b, the number of parts for attaching the seismic isolation structure 5 can be reduced. In addition, the bolts and nuts can be tightened together with the horizontal flanges 6a and 6b on the three-dimensional warehouse 100 side. As a result, not only the material costs for bolts and nuts, but also the cost advantages including the construction costs and remodeling costs of the three-dimensional warehouse 100 are extremely large.

  Moreover, the seismic isolation structure 5 incorporating the seismic isolation device 5X of the first embodiment is a very simple structure using the wire 12a, has a small number of parts, and can reduce the processing cost for installation. Cost can be reduced.

  Further, since only the tensile load acts on the wire 12a, the design can be performed very easily.

  Furthermore, the wire 12a is lightweight, flexible, easy to install, has strength to withstand the load, and by changing the length of the wire 12a, the amount of inclination of the seismic isolation column 8 can be adjusted. Corresponding to the warehouse 100 can be easily performed.

  In this way, it is possible to effectively isolate the shaking acting on the three-dimensional warehouse 100 with a simple configuration and reliably prevent an excessive inclination of the seismic isolation column 8.

  Further, the wire 12a of the stopper member 12 is disposed so as to prevent the seismic isolation column 8 from tilting beyond an inclination angle at which the seismic isolation column 8 can be restored by its own weight. I can return.

  Further, the wire 12a of the stopper member 12 passes through the seismic isolation column 8, and the end collar sockets 12b at both ends serve as the first member and the second member as attachment members for the structure to be isolated. Since it is connected to the members 9a and 9b, the wire 12a and the end collar socket 12b are not exposed to the outside and do not get in the way. In addition, since the wire 12a and the end collar socket 12b are not visible from the outside, the appearance is improved.

  Further, a sheet-like elastic material 15 is interposed between the plate-like members 9 a and 9 b serving as the first member and the second member as the attachment members for the structure to be seismically isolated and the flange 10. Thereby, since the sheet-like elastic material 15 acts as a shock absorbing material, generation | occurrence | production of a high frequency vibration can be suppressed. Moreover, if the spring rigidity of the sheet-like elastic material 15 such as rubber is used, the restoring force of the seismic isolation column 8 can be adjusted.

  Furthermore, the seismic isolation device 5X of the first embodiment is arranged in the middle of a three-dimensional warehouse 100 as a structure assembled at a factory, and the plate-like members 9a and 9b are part of the structure. The structure can be easily provided with a seismic isolation function simply by being fixed to the horizontal flanges 6a and 6b.

  The plate-like members 9a and 9b are not necessarily provided, and the inclined fulcrum forming member 11 is directly attached to the horizontal flanges 6a and 6b without the plate-like members 9a and 9b. The seismic isolation structure 5 may be configured such that the seismic isolation column 8 is directly disposed and both ends of the wire 12a of the stopper member 12 are connected to the horizontal flanges 6a and 6b. In this case, the horizontal flange 6a becomes a first member that is a part of the structure to be seismically isolated, and the horizontal flange 6b becomes a second member that is a part of the structure that is to be seismically isolated. A shape in which the seismic isolation structure 5 is constituted by the seismic isolation column 8, which is inclined between the horizontal flange 6 b as the second member, the tilt fulcrum forming member 11, and the stopper member 12. Become. Even if it does in this way, the existing structure can have a seismic isolation function.

  The wire 12a is not limited to one having end collar sockets 12b attached to both ends, and, for example, as shown in FIG. 3 (b), a cylindrical compression processing terminal portion 12d that forms a ring 12c is provided at the end portion. The wire 12a can be used. In this case, the compression processing terminal portion 12d of the wire 12a is stored so as to be embedded in the counterbore hole 9e, and a ring hole 6c through which the ring 12c passes is formed in the horizontal flange 6a. The upper flange 10 and the sheet-like elastic material 15 and the upper plate-like member 9b and the horizontal flange 6b are also processed in the same manner as the lower side.

  Further, as the wire 12a, as shown in FIG. 3 (c), a wire 12a having a wire bolt 12e attached to the end can be used. In this case, the wire bolt 12e is screwed into a screw hole 9g provided in the plate-like member 9a so that the head portion 12f of the wire bolt 12e is accommodated in the passage hole 14. The plate-like member 9a only needs to be provided with a screw hole 9g, and a slit 9f as shown in FIGS. 2B and 2C is not necessary. The inner diameter of the passage hole 14 is set to be larger than the outer diameter of the head 12f of the wire bolt 12e, and when the seismic isolation column 8 returns to the original state after the inclination, the wire bolt 12e The flange 10 is prevented from riding on the head 12f. Further, the upper flange 10, the sheet-like elastic material 15, and the upper plate-like member 9 b are processed in the same manner as the lower side.

  5 and 6 show a second embodiment of the seismic isolation structure of the present invention. In the figure, the same reference numerals as those shown in FIGS. Although the same as the first embodiment shown in FIGS. 1 to 4, the second embodiment is characterized in that the seismic isolation is provided by the wire 12 a of the stopper member 12 as shown in FIGS. 5 and 6. The column 8 is connected to the plate-like member 9a as the first member.

  In the example shown in FIG. 5 (a), a bolt 16 extending in the lateral direction is passed through the lower part of the seismic isolation column 8, and a nut 17 is screwed to the tip of the bolt 16 to form an inclined fulcrum formed in a block shape. Bolts 18 are screwed to the head side of the bolt 16 and the nut 17 side of the member 11, and a wire is provided between the head side of the bolt 16 and the bolt 18 on one side of the inclined fulcrum forming member 11. The wire 12a is routed between the tip end side where the nut 17 of the bolt 16 is screwed and the bolt 18 on the other side of the inclined fulcrum forming member 11.

  Further, in the example shown in FIG. 5B, bolts 19 are screwed to both side surfaces in the lower part of the seismic isolation column 8, and the side corresponding to both the bolts 19 of the inclined fulcrum forming member 11 formed in a block shape. Bolts 18 are respectively screwed to each other, and a wire 12a is stretched between the bolt 19 on one side of the seismic isolation column 8 and the bolt 18 on one side of the inclined fulcrum forming member 11, and the seismic isolation A wire 12a is stretched between the bolt 19 on the other side of the column 8 and the bolt 18 on the other side of the inclined fulcrum forming member 11.

  On the other hand, in the example shown in FIG. 6A, the wire 12a is passed through the holes 8a drilled in the lower both side surfaces of the seismic isolation column 8, and corresponds to the hole 8a of the inclined fulcrum forming member 11 formed in a block shape. Bolts 18 are screwed to the respective sides, and both ends of the wire 12a are engaged with the bolts 18.

  Further, in the example shown in FIG. 6B, an outer peripheral groove 8b is provided on the lower outer peripheral surface of the seismic isolation column 8, and a wire 12a is wound around the outer peripheral groove 8b and tightened into a ring shape so as not to be pulled out. Each of the other ends of the two wires 12a each having one end connected to the ring-shaped wire 12a by screwing bolts 18 to the inclined fulcrum forming member 11 facing each other across the seismic isolation column 8 The portion is hooked on the bolt 18.

  5 (a), 5 (b), 6 (a), and 6 (b), the upper and upper inclined fulcrum forming members 11 of the seismic isolation column 8 are also on the lower side. The same configuration is provided. However, depending on the situation, only the lower and lower inclined fulcrum forming members 11 of the seismic isolation column 8 or only the upper and upper inclined fulcrum forming members 11 of the seismic isolation column 8 are shown in FIG. It is also possible to provide the configuration shown in a), FIG. 5B, FIG. 6A, and FIG. 6B.

  Also in the second embodiment shown in FIGS. 5A, 5B, 6A, and 6B, the plate-like members 9a and 9b are not necessarily provided in the same manner as in the first embodiment. There is no need to provide it, the inclined fulcrum forming member 11 is directly attached to the horizontal flanges 6a and 6b without the plate-like members 9a and 9b, the seismic isolation column 8 is directly disposed between the horizontal flanges 6a and 6b, and The seismic isolation structure 5 may be configured such that both ends of the wire 12a of the stopper member 12 are connected to the horizontal flanges 6a and 6b.

  As in the second embodiment, even if the seismic isolation column 8 and at least one of the first member and the second member are connected by the wire 12a of the stopper member 12, the same as in the first embodiment, With the configuration, it is possible to effectively isolate the shaking acting on the three-dimensional warehouse 100 and to reliably prevent an excessive inclination of the seismic isolation column 8.

  The three-dimensional warehouse 100 described above has been described with a configuration in which the shape of the flange 10 of the seismic isolation column 8 is a square and the sides constituting the flange 10 are arranged along the width direction and the depth direction of the three-dimensional warehouse 100. It is not limited to. For example, the flange 10 of the seismic isolation column 8 constituting the seismic isolation structure 5 is a rectangle having a long side and a short side, the long side is along the depth direction of the three-dimensional warehouse 100, and the short side is the width direction of the three-dimensional warehouse 100. You may arrange | position so that it may follow. When arranged in this way, the seismic isolation function is more likely to act in the width direction than in the depth direction of the three-dimensional warehouse 100, and it is possible to effectively prevent the load from dropping due to the shaking in the width direction. In addition, the seismic isolation structure 5 should be a uniaxial seismic isolation system that isolates only the width direction of the three-dimensional warehouse 100 with a sufficient length in consideration of the expected vibration of the long side of the flange 10 of the seismic isolation column 8. You can also.

  Furthermore, in the case of the first embodiment and the second embodiment, the flange 10 as the overhanging portion is not necessarily provided, and the upper and lower ends of the seismic isolation column 8 are brought into direct contact with the inner surface of the inclined fulcrum forming member 11. You may do it.

  In addition, the seismic isolation structure of the present invention is not limited to the above-described embodiments, but can be applied to pillars constituting structures such as boiler steel frames, three-dimensional parking, and cargo handling facilities in addition to three-dimensional warehouse pillars. The wire as a shape is not limited to steel, but can be used as a rope or rope as long as it has sufficient strength to withstand the load and is flexible. Of course, various modifications can be made without departing from the scope of the present invention.

1 Pillar 5 Seismic isolation structure 5X Seismic isolation device 6a Horizontal flange (first member)
6b Horizontal flange (second member)
6c Ring hole 7 Column member 8 Seismic isolation column 8a Hole 8b Peripheral groove 9a Plate member (first member)
9b Plate member (second member)
11 Inclined fulcrum forming member 12 Stopper member 12a Wire (cord)
100 Three-dimensional warehouse (structure)
E fulcrum

Claims (4)

A seismic isolation column disposed between the first member and the second member so as to be freely tiltable;
An inclined fulcrum forming member that forms a fulcrum when the seismic isolation column starts to tilt;
A stopper member for limiting the inclination angle when the seismic isolation column is inclined;
The seismic isolation structure, wherein the stopper member is a cord-like body.   The seismic isolation structure according to claim 1, wherein the cord-like body of the stopper member is disposed so as to prevent the seismic isolation column from tilting beyond an inclination angle at which the seismic isolation column can be restored by its own weight.   The seismic isolation structure according to claim 2, wherein the cord member of the stopper member penetrates the seismic isolation column and both ends thereof are connected to the first member and the second member.   The seismic isolation structure according to claim 2, wherein the cord-like body of the stopper member connects the seismic isolation column and at least one of the first member and the second member.

Images