JP3941961B1 - Base isolation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To isolate a building from rolling and pitching due to an earthquake and to fix the building in its original position when the shaking stops.
[MEANS FOR SOLVING PROBLEMS] A main body A in which a plurality of gantry 1 on which a building is placed is arranged above the foundation and a plurality of metal plates are vertically stacked between the gantry, and a support in which a plurality of metal plates are vertically stacked on the side surface thereof. A shaft lead hole SR through which the body B is connected by a shaft S inserted in the lateral direction and the shaft is loosely provided is provided, and anchored to the support base plate C and the base base plate CS which are stacked vertically to receive the main body A and the support B. Anchor shaft lead holes 8 and 9 in which the shaft 6 is inserted and connected, and the anchor shaft is floating, and an anchor plate lead hole 13 in which the anchor plate 11 attached to the anchor shaft is floating are provided.
[Selection] Figure 2

Description

  The present invention relates to a base isolation device for a building.

As a conventional seismic isolation device, a pair of column members are erected on a ground via a pin joint, and a horizontal support member is straddled on the upper part of the column member via a pin joint. A base frame with diagonal members installed between each part is constructed, and the diagonal members are divided into an upper diagonal member and a lower diagonal member, which are connected by a hydraulic cylinder filled with pressure oil to synchronize with earthquake motion. Some of them are designed to stabilize buildings on the base frame by expanding and contracting diagonal materials. (For example, refer to Patent Document 1.)
In addition, when an elastic-plastic deformation damper part and a laminated rubber damper part are arranged in series vertically, and a vibration force such as an earthquake is applied to the structure, the structure is vibrated according to its natural vibration. This vibration is transmitted to the seismic isolation device interposed between the structure and the foundation, and when the vibration force is relatively small, it is absorbed by the laminated rubber body of the laminated rubber damper and the vibration force is large. Is that the deformation of the laminated rubber body is restricted by the movement restricting means of the laminated rubber damper part, the movement of the structure is transmitted to the elastic-plastic deformation damper part, and is absorbed by the elastic-plastic deformation resistance of the elastic-plastic deformation damper part There is also. (For example, see Patent Document 2.)
Japanese Patent Publication No. 40-24157 (FIGS. 1 and 2) Japanese Patent Laid-Open No. 5-71245 (FIG. 1)

The invention described in Patent Document 1 has a problem in durability when the load of the building is large,
The invention described in Patent Document 2 is a device such as a shock absorber that transmits and absorbs the vibration force applied to the structure to the seismic isolation device, and does not aim to stabilize the building itself as in the present invention. If the building load is large, there is a problem in durability.

A plurality of gantry mounting the building on the foundation placed on the ground is lined up above the foundation, separated from the foundation, and the main body A is connected by vertically stacking a plurality of horizontally long metal plates between the opposing gantry At the same time, a support body B in which a plurality of horizontally long metal plates are vertically stacked is overlapped on the outer surface of the main body A, and a plurality of shafts S are fitted over the main body A and the support body B so that the main body A and the support body B are integrated. A shaft lead hole SR through which the shaft S moves freely is provided in the main body A and the support B in order to isolate the seismic motion transmitted from the support B and to connect only the support B to the support base plate C and The body base plate C and the base base plate CS are stacked one on top of the other, the base base plate CS is fixed to the base with anchor bolts, and the support base plate C and the base base plate CS are integrated. An anchor shaft lead hole 8 for floating anchor shaft 6 for coupling to the support base plate C, respectively an anchor shaft lead hole 9 underlying baseplate CS, to seismic isolation a ground motion transmitted over all directions from the foundation base plate CS. (Claim 1)
The support BS constituting the support B is divided into a plurality of members whose contact end surfaces are formed as slopes, and each divided member is connected to the main body A by the shaft S, and the load of the building is divided into each when the pitching is cured. The members are pressurized and the slopes come into pressure contact with each other, and the building stops and is fixed at the position where it stops shaking. (Claim 2)
The support base plate C is composed of a support base plate C1 and a support base plate C2 that are vertically stacked, and the base base plate CS is composed of a base base plate CS1 and a base base plate CS2 that are vertically stacked, and a disk having a slope on the lower surface. Is attached to the lower surface of the support base plate C1 to prevent the movement of the support stabilization plate with respect to a certain range of swing width, and to provide a swing width exceeding a certain range of the slope of the support stabilization plate and the support base plate C2. When the swing is stopped while receiving the circular recess having the same slope on the upper surface and receiving the inclined surface at the circular recess, the support stabilizer is moved along the circular recess of the support base plate C2 by the load of the main body A. By slipping down, the original position is restored, and it is possible to prevent the displacement between the building and the ground when rolling is stopped. (Claim 3)
The anchor shaft lead hole 8 provided in the support base plate C1 is a long hole in the Y direction so that the vertical movement of the anchor shaft 6 does not affect when the deviation between the building and the ground is automatically corrected, and the anchor provided in the base base plate CS1. By making the shaft lead hole 9 a long hole in the X direction, the roll is divided into the Y direction and the X direction so as to be seismic-isolated, and is in contact with the anchor shaft connecting plate 14 to which the head of the anchor shaft 6 is connected. A protrusion 10 having a flat surface and a slope along the side wall of the anchor shaft lead hole 8 is formed on the upper surface of the support base plate C1, and a flat surface and a slope contacting the step 10 are formed on the bottom surface of the anchor shaft connecting plate. the section 14a is provided, the anchor shafts protruding portion 14a is fits with the stepped portion 10 when the support base plate C1 is roll 6 is so moved vertically will not spread to the anchor shaft be moved in the Y direction, the anchor plate lead hole 12 having a rectangular anchor plate 11 attached to the lower portion of the anchor shaft 6 to the support base plate C2, The anchor plate lead hole 13 which is a long hole in the X direction provided in the base base plate CS2 is allowed to move freely , a cross-shaped flat surface is formed on the upper surface of the anchor plate 11 , and a slope is formed at the corner, and an anchor shaft is formed on the base base plate CS1. A step portion 15 having a flat surface and an inclined surface is formed along the side wall of the lead hole 9, and when the base base plate CS 1 rolls , the flat surface and the inclined surface of the anchor plate fit into the flat surface and the inclined surface of the step portion 15. The vertical movement is prevented from spreading to the anchor shaft even when the X moves in the X direction. (Claim 4)
The buffer plate spring 20 is fixed to the outer surface of the support B1 constituting the support B using buffer plate spring metal fittings 21 and 22, and the upper buffer plate spring metal plate is provided with a long hole 21a. The mounting shaft of the receiving metal is loosely fitted into the long hole 21a so that the buffer plate spring 20 is elastically ejected, and the upper surface of both ends of the buffer plate spring is attached to the shaft S2, and is pressed downward by the spring retainer 20a. did. (Claim 5)
Provided is a seismic isolation base device that is configured in this way to prevent seismic motion from all directions, prevents the building and the ground from shifting when the shaking stops, and reliably receives the building at the stop position. For the purpose.

  When a building is placed on a gantry lined up separately from the foundation provided at the construction site, and the seismic isolation device of the present invention is connected to the gantry, the rolling and pitching in all directions of the building due to earthquake motion are absorbed. When the seismic motion is resolved, the building is automatically received stably at the stop position by the load of the building, and the human resources, buildings, furniture and furniture are not damaged.

  When the earthquake ends, the building that is displaced due to the shaking is automatically restored to the original position on the ground.

  1 is a front view showing the present invention, FIG. 2 is a front view showing an assembly system of the present invention, FIG. 3 is a plan view thereof, and FIG. 4 is a sectional view thereof. The gantry 1 is made of H-shaped steel, and a building is placed on the flange surface, and the support A connected to the main body A using the shaft S is connected to the main body A using the mounting angle 2 on the rib surface. Each member and its assembly system will be described below.

"Body A"
A1 (Fig. 5-front view) A2, A3 (Fig. 6-front view) AS (Fig. 7-front view), both of which are substantially oblong horizontal steel plates, with two side plates A1 and A1 This is a group of steel plates arranged in the vertical direction, consisting of one core plate A2 sandwiching both side surfaces, two A3s welded to the gantry 1, and two cover plates AS attached to the outermost support B.

“Gun 1” A platform on which a plurality of building bases 23 are placed. The height adjusting hardware 3 is interposed from the concrete foundation 19 and is arranged in a mesh pattern spaced from the GL. The frame 1 is surrounded by a channel material 4. (Fig. 24-Plan view, Fig. 25-Main part enlarged front view)
“Mounting angle 2” 4 pieces Both sides of the main body A3 are sandwiched between A1, and both sides of A1 are sandwiched between L-shaped mounting angles 2 and fastened to the gantry 1 with bolts, and the rib surface of the gantry 1 made of H-shaped steel The main body A is coupled to the gantry 1 by tightening the main body A with a bolt using the mounting angle 2.

“Shaft S” 6 shafts S1 Two shafts S1 are loosely fitted in a shaft lead hole SR1 which is a long hole in the oblique direction provided in the main body A.

  Two shafts S2 are fixed to the main body A.

Two shafts S3 are loosely fitted in a shaft lead hole SR2 having a long hole in the oblique direction provided in the main body A.

The shaft S1 is disposed higher than the installation level of the shafts S2 and S3. (Figure 1)
“Support B” A group of horizontally long steel plates arranged in the longitudinal direction in which the overlapping shaft S is inserted into the main body A and connected to the main body A, and includes B1, B2, and BS.

Two support bodies B1 (FIG. 9-front view)
Two support bodies B2 (FIG. 10-front view, FIG. 11-plan view) An angle member having an L-shaped cross section. The support body B2 is fastened to the support body B1 with a countersunk screw and the support body base plate C1 (FIG. 13). Tighten with bolts to the plan view. (FIG. 4-sectional view) The support BS is composed of right-symmetrical BSR and BSL, and the BSR and BSL are each divided into four support members BS-1R, BS-2R, BS-3R and BS-4R and BS-1L, BS-2L, BS-3L, and BS-4L are composed of a total of eight sheets, and are sequentially and symmetrically overlapped between the main body A1 and the support B1. (FIG. 8-front view, FIG. 4 FIG. 3) For the sake of explanation, each divided member is described as BS-1, BS-2, BS-3, and BS-4. That is,
The support BSL is overlapped on both sides of the main body A1, and the support BSR is overlapped between the support BSL and the support B1, and the inclined surface contacting the inclined surface formed on the front end surface of the substantially V-shaped support BS-2. The support BS-3 formed on the rear end surface and the inclined surface contacting the inclined surface formed on the rear end surface of the support BS-2 are formed on the front end surface of the support BS-1, and the rear surface of the support BS-1 is almost A V-shaped slope is formed, and the slope is brought into contact with a mountain-shaped convex portion formed below the support BS-4. The body AS (cover plate) is superposed on both sides of the support bodies BSR and BSL combined in this way. (Fig. 3, Fig. 4)
“4 pieces of shock-absorbing leaf springs 20 (four stations) and upper and lower shock-absorbing spring springs 21 (upper) and 22 (lower)” (FIG. 12)
The buffer plate springs 20 are fixed to both side surfaces of the support B1 by a pair of upper and lower four buffer plate spring brackets 21 (upper) and 22 (lower) mounting shafts, and are attached to the upper buffer plate spring bracket 21. A long hole 21a is provided, and the mounting shaft of the buffer plate spring bracket 21 is loosely fitted into the long hole 21a so that the buffer plate spring 20 is elastically mounted, and the upper surfaces of both ends of the buffer plate spring 20 are mounted on the shaft S2. Further, the spring presser 20a presses the buffer plate spring 20 near the center downward with the spring presser 20b. (Fig. 12)
"Support base plate C"
The support base plate C1 and the support base plate C2 are composed of two upper and lower parts, and only the support B is connected to the support base plate C1 by using the support B2 formed by an L-shaped angle member and the bolt 31. . (Fig. 4)
A support base plate C2 (FIG. 14) is superimposed on the lower side of the support base plate C1 (FIG. 13) and fixed integrally with a bolt (FIGS. 1 and 2).
"Basic base plate CS" Top and bottom two
The support base plate C and the back cover plate 5 are connected to the ground GL using anchor bolts 25, and the base base plate CS2 is superposed vertically below the base base plate CS1 (FIG. 16). Join (Fig. 1, Fig. 2, Fig. 16)
A back cover plate 5 is attached to the lower surface of the base base plate CS2. (Figure 1)
"Shaft lead hole SR"
SR1 (diagonal direction) SR2 (diagonal direction) SR3 (lateral direction X direction) SR4 (vertical direction Y direction) and SR5 (lateral direction), and the shaft lead hole SR is composed of the main body A1 A2 AS, the support B1, Provided on the support BS,
The shaft S1 is loosely fitted in a shaft lead hole SR1 (a C-shaped oblique shaft lead hole) provided in the main body A1 A2 AS (FIG. 1, FIG. 5, FIG. 7).
The shaft S3 is loosely fitted into a shaft lead hole SR2 (shaft lead hole in an oblique direction with an inverted C shape) provided in the main body A1 A2 AS (FIG. 1, FIG. 5, FIG. 7).
The shaft S3 is loosely fitted in the shaft lead hole SR3 (shaft lead hole in the X direction) provided in the support B1, and (FIG. 9).
The shaft S2 is loosely fitted in the shaft lead hole SR4 (shaft lead hole in the Y direction) provided in the support B1, (FIG. 9).
The shaft S1 is loosely fitted in the shaft lead hole SR5 (X direction shaft lead hole longer than SR3) provided in the support BS-1, and the other shaft S1 is fixed to the main body A, and the shaft lead hole SR2 The shaft S2 is loosely fitted (FIG. 8). The shaft S2 is fixed to the support BS-2, the shaft S3 is fixed to the support BS-3, and the shaft S3 is fixed to the support BS-4. (Fig. 8)
"Anchor shaft 6" and "Anchor shaft lead holes 8, 9"
(FIG. 2, FIG. 14, FIG. 16, FIG. 18, FIG. 19)
The two anchor shafts 6 are loosely fitted into anchor shaft lead holes 8 provided as long holes in the Y direction on the support base plate C1 and anchor shaft lead holes 9 provided as long holes in the X direction on the base base plate CS1. In order to prevent the vertical movement of the earthquake from spreading to the anchor shaft 6, the roll is divided into the Y direction and the X direction so as to be isolated. A square anchor shaft lead plate 7 (FIG. 4) attached to the upper portion of the anchor shaft 6 (FIG. 19) is guided by the Y-direction anchor shaft lead hole 8 provided in the support base plate C1 and moves freely. (Fig. 13)
A step portion 10 having a flat surface 10a and an inclined surface 10b is provided on the support base plate C1 along the side wall of the anchor shaft lead hole 8 in the Y direction provided on the support base plate C1 (FIG. 13). Along the side wall of the anchor shaft lead hole 9, a stepped portion 15 comprising a flat surface 15a and a slope 15b is provided on the base base plate CS1. (Fig. 16)
“Anchor plate 11” (FIGS. 20, 22, and 23)
The anchor plate 11 is attached to the lower portion of the anchor shaft 6 and has a rectangular anchor plate lead hole 12 provided in the support base plate C2 (FIG. 14) and a rectangular anchor plate lead hole 13 provided in the X direction of the base base plate CS2. While moving freely inside (FIG. 18), a flat surface 11 a in the X direction and a slope 11 b in the Y direction are provided on the upper surface of the anchor plate 11. (Fig. 20)
"Anchor shaft connecting plate 14"
The heads of the two anchor shafts 6 are connected and fixed by the anchor shaft connecting plate 14 so that the anchor shafts 6 move together. (Figs. 22 and 23)
“Support Stabilization Plate 16” and “Stainless Steel Stabilization Plate 18”
Four disc-shaped support stabilizers 16 having a flat surface 16a and a slope 16b formed on the bottom surface are attached to the bottom surface of the support base plate C1 with a countersunk screw, and the slope 16b is provided on the top surface of the support base plate C2. The flat surface 16a of the support stabilizer 16 is received by the upper surface of the stainless steel stabilizing plate 18 that slides along the circular recess 18a formed in the upper surface of the base base plate CS1. (FIGS. 15 and 16)
In order to make the movement of the support base plate C2 smooth, four oil supply ports 26 are provided at positions close to the support stabilization plate 16 attached to the support base plate C1, and oil is supplied from the oil supply port 26 to the stainless steel stabilization plate 18 to provide stainless steel. The stabilizer plate 18 is smoothly slid in the circular recess 18a provided on the upper surface of the base base plate CS1, and further, the fuel is supplied from the fuel filler port 26 to the base base plate CS2 below the base base plate CS1 through the stainless steel stabilizer plate 18. It is smooth.

The base base plate CS1 and the base base plate CS2 are integrally fixed using twelve countersunk screws 30 (FIGS. 16 and 18 ).
Four anchor bolts 25 are inserted into anchor bolt holes 29 provided in the foundation base plate CS2 and the back cover plate 5 and fixed to the concrete foundation 19. (Figure 1)
The head of the anchor bolt 25 is protruded upward from the circular anchor bolt lead hole 27 provided in the base base plate CS1, and the inside of the circular anchor bolt lead hole 28 provided in the support base plate C2 is allowed to move freely. The roll transmitted from the base base plate CS2 and the base base plate CS1 by the movement of the bolt 25 is transmitted to the support stabilizer 16 through the support base plate C2.
The action and effect of the device of the present invention against earthquake shaking.
1. Against rolling.

  The base roll plate CS2, the base plate CS1, the support base plate C2, and the anchor shaft 6 that connects the support base plate C1 separates the rolls in the X direction and the Y direction, and performs seismic isolation.

Anchor plate 11 (99 mm vertical width) attached to the lower part of the X-direction anchor shaft 6
An anchor plate lead hole 13 having a lateral width of 130 mm and a width of 170 mm in the X direction is provided in the base base plate CS2 (FIG. 18). A circular anchor shaft lead plate 7 (diameter 60 mm) attached to the upper part of the anchor shaft 6 Is loosely fitted in the anchor shaft lead hole 9 in the X direction provided in the base base plate CS1 (FIG. 16), and is moved loosely in the substantially rectangular anchor shaft lead hole 12 provided in the support base plate C2 (FIG. 14). The base base plate CS2 and the base base plate CS1 fixed to the concrete foundation 19 with the anchor bolts 25 are isolated from shaking in the X direction.

Y direction The heads of the two anchor shafts 6 are integrally connected to the anchor shaft connecting plate 14, and the anchor shaft lead plate 7 attached to the anchor shaft 6 is allowed to play against the swinging of the anchor shaft 6 in the Y direction. The anchor shaft lead hole 8 (length 60 mm, width 300 mm) fitted is provided in the Y direction of the support base plate C1 to enable a roll width of 170 mm. The roll width 170 mm is 85 mm to one side and rolls. When stopping, the building and the ground will be greatly displaced and the opening of the building will be poor. In order to avoid this, the support stabilizer 16 is attached to four places on the lower surface of the support base plate C1, and the rolling width of less than 40 mm on one side of the support stabilizer 16 is provided with a slope 16b provided on the lower surface of the support stabilizer 16. The base plate C2 is received by the slope 17 of the circular recess having the same gradient, and the base plate CS2 and the base plate CS1 are moved without giving any movement to the support stabilizer 16.

  For rolling of 40 mm or more on one side, the base base plate CS1 and the base base plate CS2 are fixed integrally with the countersunk screws 30, and the heads of the anchor bolts 25 are anchor bolt lead holes 27 provided in the base base plate CS1 and the support base plate C1. The anchor bolt lead hole 27 communicates with the anchor bolt lead hole 27 and is loosely moved in the anchor bolt lead hole 28 provided in the support base plate C2 having a larger diameter than the anchor bolt lead hole 27 (FIG. 14). Is transmitted to the support stabilizer 16 attached to the support base plate C1, the support stabilizer 16 is lifted, and the contact between the slope 16b and the slope 17 of the circular recess is released, so that the motion is not transmitted to the support base plate C1. Anchor shaft lead in anchor shaft lead hole 8 Rate 7 is only floating.

  When the inclined surface 16b of the support stabilizer 16 and the inclined surface 17 of the circular recess provided in the support base plate C are rocked during pressure contact, the support stabilizer 16 is supported by the load of the main body A on the circular recess of the support base plate C2. Sliding down along the slope 17, the main body A returns to movement within a roll width of 80 mm.

In order to prevent the vertical movement from spreading to the anchor shaft 6 by the above-described method for correcting the deviation between the building and the ground, the roll is divided into the Y direction and the X direction so as to be seismically isolated.
A step portion 10 having a flat surface 10a and a slope 10b along the side wall of the anchor shaft lead hole 8 is formed on the upper surface of the support base plate C1 in contact with the anchor shaft connecting plate 14 to which the heads of the Y-direction anchor shafts 6 are connected. A protrusion 14a is formed on the lower surface of the anchor shaft connecting plate 14 so as to form a flat surface and an inclined surface in contact with the step portion 10, and when the support base plate C1 rolls, the protrusion 14a fits into the step portion 10 and is anchor shaft. Even if 6 moves in the Y direction, the vertical movement does not spread to the anchor shaft 6,
X direction A cross-shaped flat surface 11a is formed on the upper surface of a rectangular anchor plate 11 attached to the lower portion of the anchor shaft 6, and a slope 11b is formed at a corner, and the flat surface along the side wall of the anchor shaft lead hole 9 is formed on the base base plate CS1. 15a and a step portion 15 having an inclined surface 15b are formed, and when the base base plate CS1 rolls, the flat surface 11a and the inclined surface 11b of the anchor plate 11 are fitted into the flat surface 15a and the inclined surface 15b of the step portion 15, and the anchor shaft 6 is The vertical movement is prevented from spreading to the anchor shaft 6 even if it moves in the direction.
2. Against pitching.

  The main body A includes two side plates A1, one core plate A2 sandwiched between the side plates A1, and one mounting plate A3 welded to the rib surface of the gantry 1 (H-shaped steel) that constructs the building. And the outermost cover plate AS. The attachment plate A3 is sandwiched between the side plates A1 and is fixed to the rib surface of the gantry 1 using the attachment angle 2 and bolts integrally with the side plate A1.

Two shafts S1, S2 and S3 are fitted and inserted into the side plate A1, the core plate A2 and the cover plate AS, the shaft S2 is fixed to the main body A, the shaft S1 is moved loosely in the shaft lead hole SR1, and the shaft S3 In the shaft lead hole SR2 in the oblique direction. (Figure 1)
The shaft S1 is loosely fitted in a shaft lead hole SR3 provided as a laterally long hole in the support B1, the shaft S2 is loosely fitted in a shaft lead hole SR4 provided as a longitudinally long hole, and the shaft S3 is It loosely fits in the lead hole SR3. (Fig. 9)
One shaft S1 is loosely fitted in a shaft lead hole SR5 provided as a laterally long hole in the support BS-1 and the other shaft S1 is fixed, and the shaft S2 is formed into a long shaft lead hole SR2 in an oblique direction. Loose fit. The shaft S3 is fixed to the support BS-3 and the support BS-4. (Fig. 8)
In this way, the main body A and the support body B connecting the buildings via the gantry 1 are connected to the main body A and the support body B by connecting the shaft lead holes SR to the shaft lead holes SR provided in the oblique direction, the horizontal direction, and the vertical direction. Isolate the body B so that it does not transmit pitching, and secure the building load with the main body A and the support B when the shaking stops, and fix the building so that it does not move at the position where the pitching has ceased. This fixing effect is caused by the wedge action resulting from the pressure contact between the inclined surfaces formed on the support members BS-1, B3S-2, BS-3, and BS-4, which are divided members constituting the support member BS. Yes, this pressure contact force is generated by the building load applied to the main body A.

The movement of the shaft S1 and the shaft S3 in the oblique direction is accompanied by a lateral movement at the same time, and the lateral movement accompanied by the pitching is also seismically isolated.
3. Action and effect of the device of the present invention when shaking is stopped.

The shaft S1 is loosely fitted in a long shaft lead hole SR1 in the oblique direction provided in the main body A and a long shaft lead hole SR3 in the horizontal direction provided in the support B1, and the shaft S3 is fitted in the main body A. It is loosely fitted into the diagonally long shaft lead hole SR2 and the laterally long shaft lead hole SR3 provided in the support B1, and fixed to the support BS-3 and the support BS-4. Therefore, the lowering of the main body A, the support BS, and the support B1 is prevented and stopped by the mutual correspondence between the shafts S and the shaft lead holes SR.
4). The shock-absorbing leaf spring 20 sandwiched between the shock-absorbing leaf spring bracket 21 and the shock-absorbing leaf spring bracket 22 provided vertically on the outer surface of the support body B1 compensates for insufficient swinging with a swing width of 150 mm with respect to pitching. At the same time, the shock applied to the device of the present invention is reduced, and the quick return operation to the original position when the shaking is stopped is applied.

A long hole 21a is provided in the upper shock-absorbing plate spring receiving member 21, and a fixing bolt 21b is loosely fitted. Disk-shaped spring retainers 20a and 20b are rotatably attached to the shaft S2 and the shaft S1, and the shock-absorbing spring 20 When the spring springs upward, the shaft S1 approaches the shock-absorbing plate spring catch 21 together with the spring retainer 20b, and does not hinder upward impact of the spring retainer 20a. (Fig. 12)
"Installation of the device of the present invention"
FIG. 24 is a plan view showing the installation state of the apparatus of the present invention, and FIG. 25 is a sectional view of the apparatus. The main body A integrated with the support B is attached between the gantry 1 facing each other using the mounting angle 2, and the support B Is fixed to the concrete foundation 19 placed on the ground with anchor bolts 25, the height of the soil concrete 24 placed on the ground is adjusted using the height adjusting hardware 3, and the channel provided outside the gantry 1 The beam member 32 is attached between the members 4 or between the other gantry 1 and the base 23 is placed on the upper surface of the gantry 1 to stand upright, and 33 is the first floor level.

  By building the building on the gantry 1, it absorbs the horizontal and vertical movements of the earthquake, suppresses the shaking, and isolates the building, and fixes the building so that it does not move in a position where the earthquake motion has subsided. There is a remarkable effect that does not damage the fixtures inside.

The front view which shows this invention. The front view which shows the assembly system of this invention. FIG. FIG. The front view of side board A1. Front view of core plate A2 and mounting plate A3. The front view of cover board AS. Assembly front view of each divided member of support BS The front view of support body B1. The top view of support body B2. Same side view. The front view which shows the state which attached the buffer plate spring 20 to the upper part of support body B2 using the buffer plate spring metal fittings 21 and 22. FIG. a Plan view of the support base plate C1.

              b XX sectional drawing in FIG.

c Same as above, YY sectional view.
The top view of the support body baseplate C2. The expanded sectional view which shows the attachment state of the support stabilizer 16 and the stainless steel stable plate 18. FIG. The top view of basic | foundation baseplate CS1. The top view of the back cover plate 5. FIG. a Plan view of the base base plate CS2.

              b X1-X1 sectional view of FIG.

              c Same as above, X2-X2 sectional view.

d Same as above, YY sectional view.
The front view of the anchor shaft 6. FIG. a Plan view of the anchor plate 11.

              b Same as above, front view.

c Same as above, side view.
a Plan view of anchor shaft lead plate.

              b Same as above, front view.

c Same as above, side view.
The front view which shows the assembly state of the anchor shaft 6. FIG. a Plan view of the anchor shaft connecting plate 14.

b Same as above, front view.
The top view which shows the state which laid the gantry 1 which mounts a building in the concrete foundation 19. FIG. FIG. The enlarged front view of the shaft S. FIG.

Explanation of symbols

1 Gantry 2 Mounting angle 6 Anchor shaft
7 Anchor shaft lead plate 8, 9 Anchor shaft lead hole 10, 15 Step 10a, 15a Plane 10b, 15b Slope 11 Anchor plate 11a Plane 11b Slope 12, Anchor shaft lead hole 13 Anchor plate lead hole
16 Stabilizing Support Plate 16a Plane 16b Slope 14 Anchor Shaft Connecting Plate 14a Protrusion 18 Stainless Steel Stabilizing Plate 19 Concrete Foundation 20 Buffer Plate Spring 21, 22 Buffer Plate Spring Bracket 25 Anchor Bolt
27, 28 Anchor bolt lead hole 30 bolt
31 Bolt head lead hole Body A
A1, A2, A3, AS
Support B
Supports B1, B2, BS3-1 BS-2 BS-3 BS-4
Shaft S
Shaft S1, S2, S3
Shaft lead hole SR
Shaft lead hole SR1, SR2, SR3, SR4, SR5

Claims (5)

A plurality of gantry 1 on which the building is placed on the foundation placed on the ground are arranged above the foundation via height adjusting hardware 3 separated from the foundation, and a plurality of horizontally long metal plates are vertically arranged between the opposed gantry 1 The main body A overlapped in the direction is connected and a support B formed by stacking a plurality of horizontally long metal plates in the vertical direction is overlapped on the outer surface of the main body A, and a plurality of shafts S are extended over the main body A and the support B. The body A and the support B are integrally connected to each other, and the shaft lead hole SR in which the shaft S is loosely provided is provided in the body A and the support B in order to isolate the seismic motion transmitted from the support B, and only the support B is provided. together with connecting to the support base plate C, a support base plate C and foundation base plate CS stacked together vertically, a foundation base plate CS is fixed to the base by anchor bolts 25, support baseplate An anchor shaft lead hole 8 for floating anchor shaft 6 for integrally connecting the over preparative C and foundation base plate CS to the support base plate C, respectively an anchor shaft lead hole 9 underlying baseplate CS, omnidirectional from basic baseplate CS Seismic isolation basic equipment that segregates seismic motion transmitted over a wide area .   The support BS constituting the support B is divided into a plurality of members whose contact end surfaces are formed as slopes, and each divided member is connected to the main body A by the shaft S. 2. The seismic isolation base device according to claim 1, wherein the slopes are pressed against the divided members so that the slopes come into contact with each other, and the building is stopped and fixed at the position where the shaking stops. The support base plate C is composed of a support base plate C1 and a support base plate C2 that are vertically superposed, and the base base plate CS is composed of a base base plate CS1 and a base base plate CS2 that are vertically superposed, and a slope 16a is formed on the lower surface. A disk-shaped support stabilizer 16 is attached to the lower surface of the support base plate C1, and the support stabilizer 16 is prevented from moving with respect to a predetermined range of swing width, and the swing width exceeding the predetermined range is inclined surface 16a of the support stabilizer 16; When the swing is stopped while receiving the circular recess 17 formed on the upper surface of the support base plate C2 and having the same gradient, and the inclined surface 16a is received by the circular recess 17, the support stabilizer 16 is supported by the load of the main body A. It is restored to its original position by sliding down along the circular recess 17 of the base plate C2, and is built when the roll stops. Possible to prevent deterioration of competition for the building opening by displacement of the soil and the seismic isolation foundation apparatus according to claim 1, wherein. The anchor shaft lead hole 8 provided in the support base plate C1 is a long hole in the Y direction and the anchor shaft lead hole 9 provided in the base base plate CS1 is long in the X direction so that the vertical movement of the earthquake does not affect the anchor shaft 6. By making holes, the rolls are segregated in the Y direction and X direction, and the anchor shaft 6 is connected to the anchor shaft connecting plate 14 to which the head of the anchor shaft 6 is connected. A step 10 having a flat surface 10a and an inclined surface 10b is formed along the side wall of the shaft lead hole 8, and a lower surface of the anchor shaft connecting plate 14 is provided with a protrusion 14a forming a flat surface and an inclined surface in contact with the step portion 10, projections 14a when the support base plate C1 is rolling anchor shaft 6 fits with the stepped portion 10 in the Y-direction Dynamic and as vertical movement to the anchor shaft 6 does not spread even, also, provided a rectangular anchor plate 11 attached to the lower portion of the anchor shaft 6 to the anchor plate lead hole 12 and the underlying base plate CS2 provided on the support base plate C2 In the anchor plate lead hole 13 which is a long hole in the X direction , a cross-shaped flat surface 11a is formed on the upper surface of the anchor plate 11 , and an inclined surface 11b is formed at the corner, and the anchor shaft lead hole 9 is formed in the base base plate CS1. A step portion 15 having a plane 15a and a slope 15b is formed along the side wall of the base plate. When the base base plate CS1 rolls , the plane 11a and the slope 11b of the anchor plate 11 are fitted into the plane 15a and the slope 15b of the step portion 15. Even if the anchor shaft 6 moves in the X direction, it moves up to the anchor shaft 6 Seismic isolation foundation apparatus according to claim 1 or claim 2 or claim 3, wherein movement is characterized in that so as not to spread. The buffer plate spring 20 is fixed to the outer surface of the support B1 constituting the support B by using buffer plate spring metal fittings 21 and 22, and the upper buffer plate spring metal fitting 21 is provided with a long hole 21a. The mounting shaft of the spring receiving member 21 is loosely fitted into the long hole 21a so that the buffer plate spring 20 can be repelled, and the upper surfaces of both end portions of the buffer plate spring 20 are mounted on the shaft S2 so as to face downward. 2. The seismic isolation base device according to claim 1, wherein the base isolation device is pressed.

Images