WO2015025821A1 - 構造物を構成する柱の免震構造及び構造物 - Google Patents
構造物を構成する柱の免震構造及び構造物 Download PDFInfo
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- WO2015025821A1 WO2015025821A1 PCT/JP2014/071580 JP2014071580W WO2015025821A1 WO 2015025821 A1 WO2015025821 A1 WO 2015025821A1 JP 2014071580 W JP2014071580 W JP 2014071580W WO 2015025821 A1 WO2015025821 A1 WO 2015025821A1
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- column
- seismic isolation
- members
- pillar
- stopper member
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
- B65G1/02—Storage devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/20—Earthquake protection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
Definitions
- the present invention relates to a seismic isolation structure and a structure of a pillar constituting a structure that is applied to a structure such as a three-dimensional warehouse, a boiler steel frame, a three-dimensional parking, and a cargo handling facility to reduce the shaking of the structure.
- a three-dimensional warehouse as an example of a structure has a configuration in which a plurality of racks (shelves) are three-dimensionally assembled using a plurality of steel pillars and a plurality of steel beams.
- Patent Document 1 As a base-isolated structure of a three-dimensional warehouse, there is one having a base-isolated structure made of laminated rubber between a plurality of pillars and a foundation constituting the three-dimensional warehouse (Patent Document 1).
- the lower ends of the two upper columns are connected by a horizontal first horizontal member, and the two lower columns corresponding to the two upper columns are connected.
- the upper ends are connected by a horizontal second horizontal member engageable with the first horizontal member so that the first horizontal member and the second horizontal member can slide in the longitudinal direction, and further, the first horizontal member And a second horizontal member are connected by a viscoelastic body (Patent Document 2).
- Patent Document 1 when a base-isolated structure with laminated rubber is provided between the lower end and the foundation of each supporting leg of a three-dimensional warehouse provided with a large number of supporting legs, the laminated rubber is expensive. Therefore, there is a problem that the equipment cost of the three-dimensional device 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 apparatus increases due to the complexity.
- a three-dimensional warehouse which is an automatic warehouse, has a length that extends along the traveling direction of the stacker crane, and a narrow width corresponding to the size of the load stored in the direction perpendicular to the traveling direction of the stacker crane. And has an elongated rectangular shape when seen in a plan view.
- Such a three-dimensional warehouse having an elongated rectangular shape in plan view has a relatively high rigidity strength in the longitudinal direction, but has a relatively low rigidity strength in the narrow width direction. For this reason, in order to protect a three-dimensional warehouse from an earthquake, it is necessary to set the seismic isolation characteristics low in the narrow width direction and to flex-isolate flexibly. Furthermore, in a three-dimensional warehouse, the front surface of the rack facing the stacker crane is opened in order to store and unload luggage with respect to the rack by the stacker crane. Therefore, if a swing occurs in the narrow width direction of the three-dimensional warehouse, the load may fall from the rack. From this point as well, the seismic isolation is flexible in the narrow width direction of the three-dimensional warehouse. There is a need.
- This problem is not limited to three-dimensional warehouses, but because the reinforcements such as braces cannot be installed on the pillars of the structure by equipment or piping provided in the structure, the rigidity strength in the horizontal biaxial direction is high. In the case of different structures, it is desired that the seismic isolation characteristics can be changed according to the direction of the rigidity strength of the structure.
- the present invention has been made in view of the above-described conventional problems.
- the load applied to the column of the structure with a simple configuration can be isolated with different seismic isolation characteristics in the horizontal biaxial directions. It provides a seismic structure.
- the seismic isolation structure for a column constituting the structure of the present invention has two column members constituting a column arranged so that the flat end surfaces face each other, and a flat contact surface facing the flat end surface at one end. And a seismic isolation column disposed between the two column members having the other end, When the two column members are moved relative to each other in the horizontal direction, one end and the other end of the seismic isolation column are in relation to the two column members.
- a trigger mechanism in which the base isolation column starts to tilt around a fulcrum by the stopper member; The elastic body is arranged such that a trigger load when the inclination of the base isolation column starts is different in the horizontal biaxial direction.
- different numbers of elastic bodies can be arranged on the side in the width direction and the side in the depth direction between the two column members and the seismic isolation column.
- the stopper member is preferably formed so as to protrude from one of the two column members and one end and the other end of the seismic isolation column and surround the other. .
- the fulcrum is formed by an edge of the flat end surface of the two members and an edge of the flat contact surface of the seismic isolation column. preferable.
- the elastic body is disposed inside a fulcrum formed by the flat end surfaces of the two members or the flat contact surfaces of the seismic isolation columns. It is preferable.
- the seismic isolation structure of the column constituting the structure it is preferable to provide a displacement limiting mechanism that limits the displacement of the seismic isolation column when the seismic isolation column is tilted.
- a convex stopper member provided at the center of one of the end surfaces of the two column members and the contact surface of the seismic isolation column, and the convex stopper You may have the concave stopper member with which the other end center of the said end surface of the said two column members and the said contact surface of the said seismic isolation column was equipped so that it might fit with a member.
- the structure of the present invention is a structure in which different seismic isolation effects are required in the horizontal biaxial direction, and the seismic isolation structure is a trigger load in the horizontal biaxial direction generated by the elastic body provided in the seismic isolation structure.
- the lower side is arranged on the pillar of the structure so as to coincide with the direction in which the seismic isolation effect of the structure is desired to be enhanced.
- the two column members move relative to each other in the horizontal direction so that the seismic isolation column is tilted with respect to the two column members. Since the trigger load in the horizontal biaxial direction when tilting in the direction can be set separately, the load acting on the column of the structure can be isolated with different seismic isolation characteristics with respect to the horizontal biaxial direction with a simple configuration An excellent effect can be achieved.
- FIG. 2b is a side view of FIG. 2a viewed from the IIC-IIC direction. It is an effect
- FIG. 1 It is explanatory drawing which shows the example of attachment of an elastic body. It is explanatory drawing which shows the modification of FIG. It is explanatory drawing which shows another example of attachment of an elastic body. It is explanatory drawing which shows the modification of FIG. It is a perspective view which shows the example of a shape of a stopper member. It is a perspective view which shows another example of a shape of a stopper member. It is a perspective view which shows another example of a shape of a stopper member. It is a perspective view which shows another example of a shape of a stopper member. It is a front view which shows the other Example of the trigger mechanism which has in the seismic isolation structure of FIG. It is a front view which shows the Example which deform
- the three-dimensional warehouse 100 (structure) has a configuration in which a plurality of racks 3 (shelves) are three-dimensionally assembled by including a plurality of steel pillars 1 and a plurality of steel beams 2.
- the three-dimensional warehouse 100 is erected with the stacker crane 4 interposed therebetween, and the three-dimensional warehouse 100 has a length V extending in the longitudinal direction along the traveling direction of the stacker crane 4 as shown in FIG.
- the stacker crane 4 has a narrow width W corresponding to the size of the load to be stored.
- 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.
- the seismic isolation structure 5 of the present invention is provided on each of the plurality of pillars 1 constituting the three-dimensional warehouse 100 of FIGS. 7a and 7b. As shown in FIGS. 7 a and 7 b, the seismic isolation structure 5 is provided at the same height position of each pillar 1 provided in the three-dimensional warehouse 100.
- the seismic isolation structure 5 can be provided at an arbitrary height position of the pillar 1, or may be provided between the lower end of the pillar 1 and the foundation T.
- FIG. 1a shows an embodiment of a seismic isolation structure for a column constituting the structure of the present invention.
- the seismic isolation structure 5 provided on the pillar 1 constituting the three-dimensional warehouse 100 is, for example, a lower pillar member that is erected on the foundation T of FIGS. 7a and 7b and has a horizontal flat end face 6 formed at the upper end. 1A and two column members 1A and 1B having an upper column member 1B disposed on the extension of the column member 1A and having a horizontal flat end surface 7 formed at the lower end. Between the opposing flat end faces 6 and 7 of the two column members 1A and 1B, the seismic isolation column is provided with flat contact surfaces 8 and 9 that contact the end faces 6 and 7 at one end 10a and the other end 10b. 10 is arranged.
- the two column members 1A and 1B and the seismic isolation column 10 show a case where the horizontal cross section is made of a square steel material having a rectangular shape.
- the column members 1A and 1B and the seismic isolation column 10 are not limited to square steel materials, but may be H-type steel materials, I-type steel materials, Z-type steel materials, and cylindrical steel materials.
- a trigger mechanism 11 is provided between the end where the two column members 1A and 1B are opposed to one end 10a and the other end 10b of the seismic isolation column 10.
- the trigger mechanism 11 has a trigger function for keeping the end surfaces 6 and 7 and the contact surfaces 8 and 9 in close contact with each other by its own weight, and when the two column members 1A and 1B are relatively moved in the horizontal direction.
- a stopper member 13 for preventing the seismic isolation column 10 from starting to be tilted by preventing the one end 10a and the other end 10b of the seismic isolation column 10 from moving outward in the horizontal direction with respect to the two column members 1A and 1B. .
- the trigger mechanism 11 shown in FIG. 1a is provided with a trigger adding device 18 using an elastic body 19 described later to increase the trigger load.
- the one end 10a and the other end 10b of the seismic isolation column 10 are provided with contact flanges 17 projecting outward in the horizontal direction to form the contact surfaces 8 and 9.
- a pressing flange 12 that forms the end faces 6 and 7 is provided so as to protrude outward in the horizontal direction.
- the pressing flange 12 is provided with a stopper member 13 that surrounds the outer periphery of the contact flange 17 provided on the seismic isolation column 10.
- the seismic isolation column 10 extends from the pressing flange 12 to the inner side in the longitudinal direction of the seismic isolation column 10 so as to be separated from the seismic isolation column 10 and to have a required length. Between the inner surface and the outer surface of the seismic isolation column 10, a gap 14 is formed that opens inward in the longitudinal direction of the seismic isolation column 10. When the two column members 1A and 1B move relative to each other in the horizontal direction, the seismic isolation column 10 has its contact surfaces 8 and 9 abutting against the corner portion between the inner surface of the stopper member 13 and the end surfaces 6 and 7, respectively. The contact prevents the two pillar members 1A and 1B from moving outward in the horizontal direction.
- a stopper member 13 may be provided on the contact flange 17, and the stopper member 13 may be formed so as to surround the outer periphery of the pressing flange 12.
- the fulcrum E is formed by the horizontal and straight edges of the flat contact surfaces 8 and 9 of the seismic isolation column 10. .
- FIGS. 4a, 4b, 4c, and 4d show examples of the shape of the stopper member 13 constituting the trigger mechanism 11 provided on the two column members 1A and 1B. Since the trigger mechanism 11 provided between the two column members 1A, 1B and the seismic isolation column 10 has a vertically symmetrical shape, the lower column member in FIGS. 4a, 4b, 4c, and 4d. Only the stopper member 13 provided in 1A is shown.
- FIG. 4a shows a case where a stopper member 13 protruding so as to surround the entire outer periphery of one end 10a of the seismic isolation column 10 is provided, as in FIG. 1a.
- FIG. 4 b shows a case where stopper members 13 ′ are provided only at the four corners of the pressing flange 12.
- FIG. 4 c shows a case where stopper members 13 ′′ are provided only on the four sides of the pressing flange 12.
- FIG. 4 d shows a case where the stopper member 13 by the protrusion 15 that is a stud member is provided on the pressing flange 12 so as to surround the outer periphery of the one end 10 a of the seismic isolation column 10.
- FIG. 5a and 5b show another embodiment of the trigger mechanism 11, which is convex on one of the end surfaces 6 and 7 of the two column members 1A and 1B and the contact surfaces 8 and 9 of the seismic isolation column 10.
- FIG. A case is shown in which a stopper member 20 is provided and a concave stopper member 21 is provided on the other side.
- the trigger mechanism 11 shown in FIG. 5a is provided with a convex stopper member 20 protruding vertically on the contact flange 17 of the seismic isolation column 10, and the convex stopper member 20 is formed by column members 1A and 1B made of square pipes. It has the structure fitted to the concave stopper member 21 to be formed. Further, the trigger mechanism 11 of FIG.
- the convex stopper member 20 is provided with a convex stopper member 20 on the pressing flange 12 of the column members 1A and 1B, and the convex stopper member 20 is formed by a seismic isolation column 10 made of a square pipe. It has a configuration fitted to the concave stopper member 21.
- the trigger mechanism 11 is constituted by the stopper members 13, 20, 21 for forming the fulcrum E for starting the inclination.
- the seismic isolation column 10 is displaced in the horizontal direction with respect to the two column members 1A and 1B between the seismic isolation column 10 and the two column members 1A and 1B.
- An alignment mechanism 16 is provided to prevent this.
- the alignment mechanism 16 of FIGS. 1a and 1b has a conical or pyramidal convex portion 16a protruding toward the seismic isolation column 10 at the center position of the end faces 6 and 7 of the two column members 1A and 1B.
- a conical or pyramidal concave portion 16b that fits into the convex portion 16a is formed on the contact surfaces 8 and 9 of the one end 10a and the other end 10b of the seismic isolation column 10.
- the tilted seismic isolation column 10 is restored even when a horizontal displacement occurs between the two column members 1A, 1B and the seismic isolation column 10.
- the two column members 1A and 1B and the seismic isolation column 10 are adjusted to a fixed position and restored.
- an elastic body is provided between the pressing flange 12 provided on the two column members 1A and 1B and the contact flange 17 provided on the seismic isolation column 10.
- a trigger adding device 18 is provided.
- the elastic body 19 contacts the pressing flange 12 so that the end surfaces 6 and 7 of the two column members 1A and 1B and the contact surfaces 8 and 9 of the one end 10a and the other end 10b of the seismic isolation column 10 are in close contact with each other with a required force.
- the outer peripheral part of the contact flange 17 is elastically connected.
- the elastic body 19 can be provided inside a fulcrum E formed by the end surfaces 6 and 7 and the contact surfaces 8 and 9.
- the trigger adding device 18 by the elastic body 19 can be adjusted so as to increase the trigger load when the seismic isolation column 10 starts tilting by the trigger mechanism 11 by selecting the number of the devices.
- a restoring spring such as a disc spring or the like can be used as the elastic body 19 .
- the elastic body 19 may be provided below the pressing flange 12 as shown in FIG. 3a, or may be provided above the contact flange 17 as shown in FIG. 3b. At this time, the tension rod 19a for applying a compressive force to the elastic body 19 made of a disc spring passes through the opening 19b provided in the pressing flange 12 and the contact flange 17, and the opening 19b is larger than the diameter of the tension rod 19a. It is loosely fitted by having a caliber. Further, as shown in FIG. 3c, the elastic body 19 may be arranged so as to elastically connect between the column members 1A and the mounting members 22 and 23 provided to protrude outside the seismic isolation column 10, or As shown in FIG.
- the elastic body 19 may be arranged so as to elastically connect between the column member 1A and the mounting members 22 ′ and 23 ′ provided so as to protrude inside the seismic isolation column 10. Even in this case, the elastic body 19 is provided on the inner side of the fulcrum E formed by the end surfaces 6 and 7 and the contact surfaces 8 and 9.
- FIGS. 2 a, 2 b, and 2 c show an example of an arrangement method of the elastic body 19 arranged with respect to the seismic isolation column 10.
- Four elastic bodies 19 are arranged at a mutual distance L1 on two sides 24x extending in the width direction (X-axis direction) of the contact surfaces 8 and 9 of the seismic isolation column 10 having a rectangular shape, and the depth direction (Y-axis) The case where the elastic body 19 is not provided in the two sides 24y extending in the direction) is shown.
- an arbitrary number of elastic bodies 19 provided on the side 24x in the width direction and the side 24y in the depth direction can be selected and installed.
- the trigger load when the outer periphery of the contact flange 17 contacts the stopper member 13 and the seismic isolation column 10 starts to tilt around the fulcrum E is set to the horizontal biaxial directions X, Any value can be set for Y.
- the elastic bodies 19 having the same elastic force can be used by changing the number of installations, or elastic bodies 19 having different elastic forces can be provided.
- FIG. 6A shows a case where a locking piece 26 extending from the stopper member 13 of the column member 1A to the upper side of the seismic isolation column 10 with a gap G is provided.
- 6b shows a case where the pressing flange 12 of the column member 1A and the contact flange 17 of the seismic isolation column 10 are connected by a connecting bolt 27 having a length having a gap G. .
- the displacement limiting mechanism 25 in FIG. 6A shows a case where a locking piece 26 extending from the stopper member 13 of the column member 1A to the upper side of the seismic isolation column 10 with a gap G is provided.
- 6b shows a case where the pressing flange 12 of the column member 1A and the contact flange 17 of the seismic isolation column 10 are connected by a connecting bolt 27 having a length having a gap G. .
- the displacement limiting mechanism 25 may have a shape that also serves as the stopper member 13 as described above, or may be provided with an independent configuration regardless of the stopper member 13.
- FIG. 1a shows the column 1 in a stationary state, and the load applied to the upper column member 1B is a flat contact surface 9 of the seismic isolation column 10 in close contact with the flat end surface 7 of the column member 1B. And, it is transmitted to the lower column member 1A via the flat end surface 6 of the column member 1A in close contact with the flat contact surface 8 of the seismic isolation column 10, and the column 1 is held in a straight state.
- the seismic isolation column 10 when a large acceleration S2 occurs in the horizontal direction as shown in FIG. 1b due to the occurrence of a large-scale earthquake, the column members 1A and 1B are in a state of relative movement in the horizontal direction. At this time, the one end 10a and the other end 10b of the seismic isolation column 10 cannot move while contacting the inner surface of the stopper member 13 and the corners of the end surfaces 6 and 7, and thus the end surfaces 6 and 7 and the contact surfaces 8 and When a load exceeding the trigger load range due to the close contact of 9 is applied to the seismic isolation column 10, the seismic isolation column 10 has left and right edges (sides) of the contact surfaces 8, 9 as shown in FIG. The tilt starts with fulcrum E as the fulcrum E.
- the seismic isolation column 10 As the seismic isolation column 10 is tilted in this way, a large acceleration S2 in the horizontal and horizontal directions is isolated. Further, even when a large acceleration S2 shakes in the horizontal depth direction, the seismic isolation column 10 is similarly tilted in the depth direction so that the large acceleration S2 shake in the horizontal depth direction is isolated. At this time, if the width B in the left-right direction and the depth length in the depth direction of the contact surfaces 8 and 9 are formed large, the seismic isolation column 10 becomes difficult to tilt in the left-right direction and the depth direction, so a large trigger load should be set. Can do.
- the seismic isolation structure 5 with a simple configuration in the column 1 of the three-dimensional warehouse 100 (structure) shown in FIGS. 7a and 7b, the load acting on the column 1 due to the earthquake can be effectively immunized. Can shake. That is, by providing the trigger mechanism 11 in which the trigger loads in the horizontal biaxial directions X and Y are arbitrarily set, the seismic isolation characteristics required for the horizontal biaxial directions X and Y of the three-dimensional warehouse 100 are effectively exhibited. It can be isolated.
- the height of the seismic isolation column 10 is h
- the width of the seismic isolation column is B
- the depth length of the seismic isolation column is B ′
- the horizontal stiffness khoX when tilted in the axial direction X parallel to 24x is as shown in Equation 1 because the lever spring is proportional to the square of the length.
- ko Spring constant
- the horizontal rigidity karY when the upper end portion of the seismic isolation column 10 is inclined in the axial direction Y parallel to the side 24y in the depth direction is as shown in Equation 2. .
- the direction in which the trigger load and the natural period of the seismic isolation structure 5 are lowered is aligned with the direction in which the three-dimensional warehouse 100 wants to enhance the seismic isolation effect. That is, the direction in which the side 24x in the width direction in which the elastic body 19 in FIG. 2a is installed extends is aligned with the axial direction X that is the direction of the narrow width W in the three-dimensional warehouse 100 in FIG. 7b. Thereby, the seismic isolation effect of the direction of the narrow width W of FIG. 7b can be heightened.
- the direction in which the side 24y in the depth direction in FIG. 2a in which the trigger load increases is aligned with the direction in which the seismic isolation structure 5 is not desired to be operated with a small load.
- the stopper member 13 surrounds one end 10a and the other end 10b of the seismic isolation column 10 from the two column members 1A and 1B. Therefore, the fulcrum E when the seismic isolation column 10 tilts can be formed with a simple configuration.
- the fulcrum is supported by the edges of the flat end surfaces 6 and 7 of the two column members 1A and 1B or the edges of the flat contact surfaces 8 and 9 of the seismic isolation column 10. Since E is formed, a large load when the seismic isolation column 10 is inclined can be supported by the straight fulcrum E.
- the elastic body 19 includes the flat end surfaces 6 and 7 of the two column members 1 ⁇ / b> A and 1 ⁇ / b> B and the flat contact surface 8 of the seismic isolation column 10, Since the trigger mechanism 11 does not overhang outside the column 1, the small seismic isolation structure 5 is formed. Can be achieved.
- the displacement limiting mechanism 25 that limits the displacement between the base isolation column 10 and the two column members 1A and 1B due to the inclination of the base isolation column 10 is provided,
- the tilt of the base isolation column 10 can be limited by the displacement limiting mechanism 25 having a simple configuration.
- the three-dimensional warehouse 100 having different rigidity and strength in the horizontal biaxial direction, it is desired to enhance the seismic isolation effect of the three-dimensional warehouse 100 on the side where the trigger load in the horizontal biaxial direction of the seismic isolation structure 5 is provided by the elastic body 19. Since it arrange
- the seismic isolation structure 5 can be applied to pillars of various structures such as boiler steel frames other than the three-dimensional warehouse 100, three-dimensional parking, and cargo handling facilities.
- this invention is not limited to the above-mentioned Example, Of course, a various change can be added in the range which does not deviate from the summary of this invention.
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Abstract
Description
二つの前記柱部材と前記免震柱との間に配置され、二つの前記柱部材が水平方向へ相対移動した際に、前記免震柱の一端及び他端が二つの前記柱部材に対して水平方向外側へ移動するのを防止するストッパ部材と、二つの前記柱部材の平坦な前記端面と前記免震柱の一端及び他端の平坦な前記当接面を密着させる弾性体を有して前記免震柱が前記ストッパ部材により支点を中心に傾きを開始するようにしたトリガ機構を備え、
前記弾性体は、前記免震柱の傾きが開始する際のトリガ荷重が水平二軸方向で異なるように配置した
ことを特徴とする。
L2:弾性体の設置範囲
ko:ばね定数
1A 柱部材
1B 柱部材
5 免震構造
6 端面
7 端面
8 当接面
9 当接面
10 免震柱
10a 一端
10b 他端
11 トリガ機構
13 ストッパ部材
18 トリガ付加装置
19 弾性体
20 凸状のストッパ部材
21 凹状のストッパ部材
24x 幅方向の辺
24y 奥行き方向の辺
100 立体倉庫(構造物)
Claims (8)
- 平坦な端面が対向するように配置される柱を構成する二つの柱部材と、平坦な前記端面に対向する平坦な当接面を一端及び他端に有して二つの前記柱部材の間に配置される免震柱と、
二つの前記柱部材と前記免震柱との間に配置され、二つの前記柱部材が水平方向へ相対移動した際に、前記免震柱の一端及び他端が二つの前記柱部材に対して水平方向外側へ移動するのを防止するストッパ部材と、二つの前記柱部材の平坦な前記端面と前記免震柱の一端及び他端の平坦な前記当接面を密着させる弾性体を有して前記免震柱が前記ストッパ部材により支点を中心に傾きを開始するようにしたトリガ機構を備え、
前記弾性体は、前記免震柱の傾きが開始する際のトリガ荷重が水平二軸方向で異なるように配置した
ことを特徴とする構造物を構成する前記柱の免震構造。 - 二つの前記柱部材と前記免震柱の間における幅方向の辺と奥行き方向の辺に、異なる数の前記弾性体を配置したことを特徴とする請求項1に記載の構造物を構成する前記柱の免震構造。
- 前記ストッパ部材は、二つの前記柱部材と前記免震柱の一端及び他端との一方から突出して他方を囲むように形成されたことを特徴とする請求項1に記載の構造物を構成する前記柱の免震構造。
- 前記支点は、二つの前記部材の平坦な前記端面の端縁及び前記免震柱の平坦な前記当接面の端縁によって形成されたことを特徴とする請求項1に記載の構造物を構成する前記柱の免震構造。
- 前記弾性体は、二つの前記部材の平坦な前記端面又は前記免震柱の平坦な前記当接面によって形成される前記支点よりも内側に配置されることを特徴とする請求項1に記載の構造物を構成する前記柱の免震構造。
- 前記免震柱が傾いた際の前記免震柱の変位を制限する変位制限機構を設けたことを特徴とする請求項1に記載の構造物を構成する前記柱の免震構造。
- 二つの前記柱部材の前記端面と前記免震柱の前記当接面の一方の中心に備えた凸状の前記ストッパ部材と、凸状の前記ストッパ部材と嵌合するように二つの前記柱部材の前記端面と前記免震柱の前記当接面の他方の中心に備えた凹状の前記ストッパ部材を有することを特徴とする請求項1に記載の構造物を構成する前記柱の免震構造。
- 水平二軸方向で異なる免震効果が要求される構造物において、請求項1~7のいずれか1つに記載の免震構造は、該免震構造に備えた前記弾性体によって生じる水平二軸方向へのトリガ荷重の低い側を、前記構造物の免震効果を高めたい方向に一致させて前記構造物の前記柱に配置することを特徴とする構造物。
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WO2018150234A1 (en) * | 2017-02-16 | 2018-08-23 | Allen John Damian | Force limiter and energy dissipater |
WO2021254917A1 (en) * | 2020-06-19 | 2021-12-23 | Ocado Innovation Limited | A grid framework structure |
US11828083B2 (en) | 2017-02-16 | 2023-11-28 | John Damian Allen | Control structure with rotary force limiter and energy dissipater |
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JPS6458733A (en) * | 1987-08-28 | 1989-03-06 | Tetsuo Kuroiwa | Structure form aiming at earthquakeproofing and related device |
JPH1161737A (ja) * | 1997-08-19 | 1999-03-05 | G Axon Michael | 道路の柱用の地震衝撃減衰装置 |
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WO2018150234A1 (en) * | 2017-02-16 | 2018-08-23 | Allen John Damian | Force limiter and energy dissipater |
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WO2021254917A1 (en) * | 2020-06-19 | 2021-12-23 | Ocado Innovation Limited | A grid framework structure |
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GB2611634B (en) * | 2020-06-19 | 2023-09-06 | Ocado Innovation Ltd | A grid framework structure |
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