JP3304735B2 - Seismic isolation warehouse - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismically isolated warehouse.

[0002]

A rack for storing luggage in a warehouse has a simple structure made of a steel frame. If the legs of the frame are connected to the slab, the rack shakes with the building during an earthquake. Collapse easily occurs depending on the size of the cargo.

Usually, a rack is provided with a stopper to prevent the load from falling off the rack even if it slides, but this is not a fundamental measure for preventing collapse of the load, and is an obstacle when loading and unloading the load. Also.

SUMMARY OF THE INVENTION The present invention proposes a warehouse having a structure for preventing a load from falling without relying on a drop stop.

[0005]

According to the present invention, a slab on which a rack is mounted is separated from a lower structure below the slab, the structure including at least a column and a beam. The slab is supported by a seismic isolation device that allows the relative horizontal displacement of the rack, and the rack is seismically isolated to suppress the swing of the rack and prevent the collapse of the load during an earthquake.

[0006] The slab is constructed with a vertical distance between the slab and the top of the column of the undercarriage supporting the slab, and a seismic isolation device is installed between them.

In a warehouse, a slab is separated from a building consisting of walls and a roof, and only a slab and a rack are seismically isolated.

Since the slab on which the rack is mounted is supported by the seismic isolation device and is insulated from the lower structure, the acceleration generated in the rack during an earthquake is reduced. Collapse is prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the present invention comprises a lower structure 1, a slab 2 which is constructed with a vertical distance between the lower structure 1, and a slab 2 which is constructed on the slab 2. Rack 3 composed of a frame, lower structure 1 and slab 2
It is a refrigerator or a freezer warehouse that is composed of a seismic isolation device 4 of laminated rubber bearings installed therebetween and separated from a building composed of a wall 5 and a roof 6.

Since the slab 2 is separated from the wall 5 and the roof 6 connected to the lower structure 1, the slab 2 and the rack 3 behave independently of the building during an earthquake.

The lower structure 1 is constructed on a foundation 7 from a reinforced concrete or steel frame, column / beam frame, or frame and slab or wall. When the lower structure 1 is a ground floor, the slab 2 is located at an intermediate floor of two or more floors in the warehouse, but the lower structure 1 may be a basement floor. The lower structure 1 is used for a warehouse or other uses.

The rack 3 is connected to the slab 2 as shown in FIG. 2 and FIG.
It is constructed from a horizontal member 32 and a brace 33 erected between them, and the luggage is loaded with a pillar 31 and a horizontal member 32 as shown by a two-dot chain line in FIGS.
Arms 34 projecting horizontally from horizontal members 32 in the space surrounded by
It is supported on top and stored. At the entrance of each luggage storage space, if necessary, a net for preventing the luggage from dropping can be freely opened and closed.

The rack 3 is constructed in a warehouse except for the position of a crane for moving loads in a horizontal direction and a vertical direction. Connecting beams between the tops of all the racks 3 as shown in FIG.
35 are installed, and the tops of the racks 3 in each row are connected to the connecting beams 35 so that rotation during deformation due to an earthquake is restrained.

Although the seismic isolation device 4 is placed on the plane in a well-balanced manner in two directions irrespective of the position of the column 31 of the rack 3, the relative horizontal displacement between the slab 2 and the lower structure 1 becomes excessive, and the slab 2 When the connection between the seismic isolation device 4 and the
As shown in FIG. 5, a capital 20 is formed on the lower surface of the slab 2 on which the seismic isolation device 4 is installed, and a protrusion 10 is formed on the upper surface of the lower structure 1 so that the slab 2 can land on the lower structure 1. As a result, the distance between the slab 2 at the position where the seismic isolation device 4 is installed and the lower structure 1 is reduced.

A clearance is secured between the slab 2 and the wall 5 around the slab 2 separated from the slab 2 in consideration of the amount of horizontal displacement of the slab 2 with respect to the lower structure 1. When a sufficient clearance cannot be secured, as shown in FIG. 4, a cushioning material 8 for alleviating the impact at the time of contact is fixed to one of the slab 2 and the wall 5 or the wall of the non-seismic structure. .

The seismic isolation device 4 employs a laminated rubber bearing shown in FIG. 5 which allows a relative horizontal displacement of the slab 2 with respect to the foundation 1 while bearing a vertical load applied to the slab 2. In this case, if a high damping rubber is used for the rubber, it is not necessary to use a damper together with the seismic isolation device 4.

As shown in FIG. 6, a cargo handling building is adjacent to the warehouse and is constructed by connecting with an expansion joint.
The luggage carried into the cargo handling building or the cargo carried out of the warehouse is moved between the entrance of the warehouse and the carrying-in entrance of the cargo handling building by the rail 9 extending between the handling building and the warehouse. The luggage moved from the cargo handling building to the warehouse is stored in the racks 3 in each row by the crane, but the rail 9 extending between the seismic isolation structure warehouse and the non-seismic structure cargo handling building depends on the difference in swing between the two buildings. The rail 9 is divided at the expansion joint into a warehouse side and a cargo handling ridge side so as not to be destroyed.

As shown in FIGS. 7 and 8, the rail 91 on the warehouse side and the rail 92 on the cargo handling ridge side are fixed to the frame on each side, and are spaced apart in the length direction of the rail 9 at the expansion joint. A connecting rail that is insulated from both rails 91 and 92 on the same track between them.
11 is arranged, both rails 91 and 92 are normal, connecting rail 11
Continued by.

The connecting rail 11 is fixed to one of the skeletons across the two buildings, and is placed on the base material 12 insulated from the other skeleton and the rails 91 (92) on the other side, and the warehouse has moved to the cargo handling ridge side. It is sometimes supported by the rail 91 on the warehouse side so as to be separated from the base material 12. The base material 12 follows the relative horizontal displacement between the warehouse and the cargo handling building by slidably contacting the skeleton on the insulated side (the skeleton on the warehouse side in the drawing) and the rail 91 (92).

Plates 13 and 14 which overlap each other in a normal state are joined to the upper surface side of the base material 12 and the lower surface side of the connection rail 11, respectively, and both the plates 13 and 14 penetrate through the portion protruding from the connection rail 11. By being sandwiched between the seat plates 16 and 17 of the bolt 15 and the coil spring 18 arranged around the axis of the bolt 15, the bolts 15 overlap with each other, and the connecting rail 11 maintains the state supported by the base material 12. 7 and 8, the connecting rail 11 is supported on the base material 12 by the plates 13 and 14 at two locations in the longitudinal direction.

As shown in FIG. 9 which is an enlarged view of the chain line circle in FIG. 8, the seat plate 16 located on the plate 14 of the connecting rail 11 overlaps the plate 14, and the coil spring 18 is connected to the lower seat plate 17 and the base material. The plate 13 of the base material 12 is brought into close contact with the plate 14 of the connecting rail 11 by the restoring force, and the plate 13 is sandwiched between the plate 13 and the plate 14 in a normal state. maintain.

FIGS. 12 to 14 show the movement of the rails 91 and 92 when a relative displacement occurs between the warehouse and the cargo handling building. 12 shows the warehouse when it is displaced in the width direction of the rail 9 parallel to the cargo handling building, FIG. 13 shows the warehouse when it moves away from the handling building, and FIG. 14 shows the direction when the warehouse approaches the handling building. Shows the state when it is moved to.

As shown in FIG. 14, when the warehouse moves to the cargo handling ridge side, the connecting rail 11 is pushed by the rail 91 on the warehouse side,
The mutually facing surfaces of the rail 92 on the handling building side and the connecting rail 11 are connected to the rail 92 on the handling building side so that the rail 92 on the handling building side collides with the base material 12 on either side of the rail 9.
At the time of collision, the connecting rail 11 is inclined so as to be disengaged from the front end on the cargo handling ridge side. In the drawing, the connecting rails 11 are inclined in such a direction as to come out of the rails 9. However, when the connecting rails 11 are taken out of the rails 9, the inclination directions of the parallel connecting rails 11 are reversed.

In the case of the drawing, since the plate 14 comes off the rail 9 together with the connecting rail 11, the bolt 15 located inside the connecting rail 11 is attached to the plate 13 of the base material 12 so as to be separated from the plate 14. The bolts 15 located on the outside, together with the plate 14 of the connecting rail 11,
It is attached to the plate 14 so as to be detached from the plate 13.

Since the inner bolt 15 and the outer bolt 15 sandwiching the connecting rail 11 are attached to the plates 13 and 14, respectively, the plate of the connecting rail 11 near the rail 92
14 so that the plate 14 can be pulled out of the bolt 15 connected to the plate 13 together with the connecting rail 11 by using
As shown in FIG. 10, which is a view taken along the -x line, a notch corresponding to the inclination of the surface of the connecting rail 11 on the rail 92 side is formed.

Since the bolts 15 located outside are attached to the plate 14 of the connecting rail 11, the bolts 15 are attached to the plate 13 of the base material 12 as shown in FIG. A notch is formed in a direction in which the hole comes out of the plate 13.

As described above, in the drawing, the connecting rail 11 is supported by the base material 12 at two points in the length direction.
If the bolt 15 is attached to the plate 13, the plate 14 has a notch.If the bolt 15 is attached to the plate 14, the plate 13 has a notch. It is formed. Connecting rail 11
When the wire comes off the base material 12, the end of the connecting rail 11 near the rail 91 moves in the length direction, so that the notch has a shape in which the rail 91 side is open.

FIG. 15 shows a method of protecting the rubber of the seismic isolation device 4, which is a laminated rubber bearing, from cold air.

Since a clearance is secured between the slab 2 and the wall 5 of the building in consideration of the relative displacement between the two, the heat insulating material 19 normally relaxes at the clearance so that it can follow the relative displacement. It is in a state. FIG. 1 shows a case where a heat insulating material 19 is laid around the wall 5 and the roof 6 of the building, and the whole warehouse is kept warm.

When the heat insulating effect is insufficient only by the heat insulating material 19, the conditioned air is sent to the installation layer of the seismic isolation device 4, or natural ventilation is performed.

[0031]

According to the present invention, the slab on which the rack is mounted and the lower structure below the slab are separated, and the slab is supported by the seismic isolation device which allows the relative horizontal displacement of the slab with respect to the lower structure while bearing the vertical load applied to the slab. In addition, since the rack has a seismic isolation structure, the rack is prevented from shaking, and the collapse of the load during an earthquake can be prevented.

[Brief description of the drawings]

FIG. 1 is an elevation view showing a seismic isolation warehouse.

FIG. 2 is an elevational view showing a structure of a rack.

FIG. 3 is an elevational view in an orthogonal direction of FIG. 2;

FIG. 4 is a sectional view showing a relationship between a slab and a cushioning material.

FIG. 5 is a sectional view showing a seismic isolation device for a laminated rubber bearing.

FIG. 6 is a bird's-eye view showing the relationship between the warehouse and the cargo handling building.

FIG. 7 is a plan view showing rails spanning a warehouse and a cargo handling building.

FIG. 8 is an elevation view of FIG. 7;

FIG. 9 is a partially enlarged view of FIG. 7;

FIG. 10 is a view taken along line xx of FIG. 9;

FIG. 11 is a view taken along line yy of FIG. 9;

FIG. 12 is a plan view showing a state where the rail on the warehouse side is displaced in the width direction thereof.

FIG. 13 is a plan view showing a state where the rail on the warehouse side is displaced away from the cargo handling building.

FIG. 14 is a plan view showing a state where the rail on the warehouse side is displaced in a direction approaching the cargo handling building.

FIG. 15 is a longitudinal sectional view showing a state where a heat insulating material is laid on an installation layer of the seismic isolation device.

[Explanation of symbols]

1 ... lower structure, 10 ... protrusion, 2 ... slab, 20 ...
Capital, 3 ... rack, 31 ... pillar, 32 ... horizontal material,
33 ... Brace, 34 ... Brace, 35 ... Tethering beam, 4 ...
Seismic isolation device, 5 ... wall, 6 ... roof, 7 ... foundation, 8 ...
Cushioning material, 9 ... rail, 91 ... rail on the warehouse side, 92 ...
Rails on the cargo handling ridge side, 11 ... connecting rails, 12 ... base material,
13 ... plate, 14 ... plate, 15 ... bolt, 16 ...
… Seat plate, 17 …… Seat plate, 18 …… Coil spring, 19 ……
Insulation.

Continued on the front page (72) Inventor Akio Sagae 2-9-1-1, Tobita-Shi, Chofu-shi, Tokyo Kashima Construction Co., Ltd. (72) Inventor Kazuo Kume 2-191-1, Tobita-Shi, Chofu, Tokyo (56) References JP-A-62-25678 (JP, A) JP-A-63-67369 (JP, A) JP-A-7-139218 (JP, A) Jpn. (JP, U) Japanese Utility Model Showa 64-31802 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04H 9/02 331 E04H 9/02 301 B65G 1/14

Claims (1)

(57) [Claims] 1. A slab constructed with a vertical distance between at least a lower structure composed of columns and beams, a top of a column of the lower structure, and a skeleton constructed on the slab. A seismic isolation device with a laminated rubber bearing installed between the top of the lower structure column and the slab, and supporting the vertical load applied to the slab and allowing relative horizontal displacement of the slab with respect to the lower structure. A refrigerator or freezer made of heat insulating material laid continuously on the top surface of the structure and the inside of the wall, and the bottom surface of the slab and the inside of the wall, respectively, wherein the slab is separated from the wall and the roof surrounding the rack,
A seismic isolation warehouse that has a clearance between the slab and the wall that allows for the relative displacement between the two, and the insulation laid on the bottom of the slab is loose at the clearance.