JP2000257302A - Setting state adjustment method for base isolation device and its setting state adjustment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve setting and adjusting working for a base isolation device by supporting a base plate through an adjusting bolt screwed on a female screw member, rotating the adjusting bolt and adjusting a screwing position. SOLUTION: Eight anchor members 7 are attached to the lower face side of a base plate 4. A support part using an adjusting bolt is arranged on four parts. A female screw member 15 comprising a long nut is fixed on the lower face of the base plate 4, the adjusting bolt 16 is screwed on the female screw member 15, the base plate 4 is supported through the adjusting bolt 16 itself, and the setting state of the base plate 4 is adjusted by rotating the adjusting bolt 6 and adjusting a screwed position. Thereby the remarkable reduction of interference with a reinforcing bar or the like, the remarkable reduction of a working space and the improvement of workability in fine adjusting working can be performed and final working precision can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a technology for installing a seismic isolation device. More specifically, the present invention relates to an improved technique for improving an adjustment operation regarding an installation state such as a height and a horizontal state with respect to a base plate serving as a reference plane for installation of the seismic isolation device.

[0002]

2. Description of the Related Art Since a large load from an upper frame is continuously applied to a seismic isolation device for a long period of time, work accuracy in installation is extremely important to reliably maintain performance during the operation. In particular, it is important to secure the support strength for supporting the seismic isolation device and to perform the operation with respect to the installation state of the seismic isolation device. For this reason, conventionally, in order to form the installation base part supporting the seismic isolation device into a solid structure, it is common to arrange a large number of reinforcing bars in the part. Regarding the installation of the base plate, a method of forming a supporting frame, adjusting the installation state horizontally through adjusting the height of the support portion of the base plate, and then pouring concrete is widely known. . By the way, if the supporting frame of the base plate is installed inside the installation base part and buried in the foundation concrete, the disassembling operation can be omitted, and since the base plate is supported directly below, the workability and This is also advantageous from the viewpoint of the supporting structure, and also from the viewpoint of construction costs. However, since a large number of reinforcing bars are arranged in the portion as described above, when the supporting frame is formed in the installation base portion, the reinforcing bars and the supporting frame interfere with each other, and the mounting In addition to the poor workability, there is a problem that a working space for adjusting the installation state of the base plate cannot be secured in some cases. For this reason, a method is generally used in which a supporting frame for a base plate is installed outside the installation base portion, and after disposing the foundation concrete, it is disassembled and removed.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and can reduce interference with reinforcing bars arranged on the installation base.
It is possible to improve the workability of the work of adjusting the installation state of the base plate, and to provide a base plate support means that can be installed directly under the base plate and buried in the foundation concrete without disassembling, thereby installing the seismic isolation device It is an object of the present invention to improve the adjustment work relating to the state.

[0004]

According to the present invention, in order to solve the above-mentioned problems, a female screw member is provided on a lower surface side of a base plate for installing a seismic isolation device, and an adjusting bolt screwed to the female screw member is provided. While supporting the base plate with
The technical means of adjusting the installation state of the base plate by adjusting the screwing position by rotating the adjusting bolt is employed. As described above, in the present invention, since the base plate is configured to be supported via the adjustment bolt itself, the installation space can be significantly reduced as compared with the conventional support frame,
The interference with the rebar can be greatly reduced. Further, since the adjustment of the installation state of the base plate can be performed only by rotating the adjusting bolt, the work space can be reduced. In the final fine adjustment step, if the adjustment work is performed in a state where the lower end of the adjustment bolt is positioned so as to be rotatable only, the height of the base plate is fixed in a state in which the horizontal positional relationship is fixed. Fine adjustment of only the installation state in the direction is possible.

[0005] As means for rotating the adjusting bolt, a through-hole is formed at a position corresponding to the female screw member of the base plate, and screwed to the female screw member from above the base plate through the through hole. The adjusting bolt is rotated to adjust the screwing position, or an engaging portion is formed at an appropriate position of the adjusting bolt, and the turning tool is engaged with the engaging portion to rotate. Thus, the screw position can be adjusted.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In carrying out the present invention, various choices can be made as to the number of supporting means comprising the adjusting bolts. For example, an embodiment is possible in which three or more adjustment bolts are used to support the lower surface of the base plate at three or more locations. In this case, the adjustment of the installation state of the base plate can be performed via adjustment bolts constituting the respective support means. Further, it is also possible to adopt a mode in which an adjusting bolt is used in at least two or more of the supporting portions of the base plate, and a non-adjustable supporting means is used in other supporting portions. In this case, the installation state of the base plate is adjusted using two or more adjustable adjustment bolts. The base plate generally has a flat plate shape and is adjusted to a horizontal state. However, the present invention is not necessarily limited to this and can be applied to other embodiments. In addition, the planar shape and the plate thickness of the base plate are not particularly limited as long as the seismic isolation device is installed using the upper surface of the base plate. Further, the installation position of the adjustment bolt may be selected according to the shape of the base plate and the installation state of the anchor member on the lower surface.

As described above, if a through hole is formed in the base plate at a position corresponding to the female screw member, the adjusting bolt screwed to the female screw member from above the base plate through the through hole is rotated. Therefore, the problem of interference with the reinforcing bar in the work of adjusting the installation state of the base plate can be solved. In addition, when the engagement portion is formed at an appropriate position of the adjustment bolt, and the rotation tool is engaged with the engagement portion and rotated to adjust the screwing position, the adjustment bolt is also used. Since the installation state of the base plate can be adjusted only by the rotation operation of the bolt, it is effective in reducing the work space. In the above case, a locking nut may be screwed into the adjusting bolt so that the locking bolt can be locked to the female screw member. Further, regarding the above-mentioned adjustment means for forming a through hole in the base plate and performing adjustment from above the base plate or adjustment means below the base plate which is performed by engaging a driver or a spanner with an engagement portion formed on the adjustment bolt, It is possible to adopt a mode in which either one or both are adopted. There may be various forms for the engaging portion with respect to a turning tool such as a driver or a spanner. Regarding the engaging portion formed on the top of the adjusting bolt, for example, a form in which a groove, a square hole, or a square protrusion is formed on the top may be possible. The engaging portion formed in the intermediate portion of the adjusting bolt can be formed by, for example, crushing or shaving the portion to form a flat portion or welding a nut or the like.

The contact portion on the installation portion side which contacts the lower end portion of the adjusting bolt and supports the base plate or the like being assembled may be the lower foundation concrete itself or the like, but the contact portion with the adjusting bolt may be used. In order to avoid galling or the like, it is desirable to provide a receiving member made of a flat plate or the like on the contact surface. That is, if the receiving member is fixed to a predetermined position such as lower foundation concrete in advance, and the lower end of the adjusting bolt is supported on the upper surface of the receiving member, the adjusting work is performed. Becomes easier. Then, when fixing the adjustment bolt after the adjustment work of the base plate, the adjustment member is welded to the receiving member side while applying an angle material or the like to the adjustment bolt, and the adjustment bolt is welded to the angle material or the like. By doing so, workability regarding welding is improved and welding strength is improved.

Further, a positioning means comprising a recess or the like is engaged with the lower end of the adjusting bolt. In a rough adjusting work stage, the positioning means is not fixed to the receiving member side, and the adjusting work is performed. The work proceeds in a state where the positioning means can move on the receiving member following the movement of the accompanying adjustment bolt, and before the final fine adjustment step in the height direction, if necessary, After performing fine adjustment on the installation position of the base plate, the positioning means is fixed to the receiving member side, and the fine adjustment operation in the height direction is performed in a state where the horizontal movement of the base plate is regulated, so that the workability and the workability are improved. Accuracy can be further improved. As the positioning means, an engaging member having a concave portion or a through hole into which the adjusting bolt can be rotatably fitted is used, and after the fine adjustment operation is completed, the engaging member and the receiving member are used. And between the engaging member and the adjusting bolt are fixed by welding or the like. Further, as another means for restricting the movement of the adjusting bolt in the fine adjustment stage, as shown in the embodiment described later, before starting the final fine adjustment work in the height direction, the horizontal installation position may be adjusted as necessary. After fine-tuning
Welding to the receiving member side while applying the vertical plane portion of the angle material from the outside to the lower end portion of each adjustment bolt, or to the receiving member side while applying the inner corner portion of the angle material from the inside of each adjustment bolt By welding, a form in which the horizontal movement of the adjusting bolt is restricted by the entire angle members is also possible. Then, after the fine adjustment work is completed, each adjustment bolt can be simply and securely fixed by welding each of the adjustment bolts to each angle member. Note that, as described above, the present invention is particularly effective when reinforcing bars are arranged on the installation base portion, but it is needless to say that the present invention can also be applied when reinforcing bars are not arranged. In addition, as the installation portion for supporting the lower end portion of the adjusting bolt, in addition to the above, a frame formed on the lower foundation concrete, and a supporting portion of the adjusting bolt formed at an appropriate position on the frame may be used. Good.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a completed installation state of the seismic isolation device. In the figure, reference numeral 1 denotes a known seismic isolation device, which is composed of a laminate or the like in which a plate-like rubber and a steel plate are alternately laminated, and has upper and lower fixing flanges 2 and 3. The seismic isolation device 1 is placed on the upper surface of a lower base plate 4 previously installed at a predetermined position via a lower flange portion 2, and is fixed in a foundation concrete forming an installation base portion 6 using fixing bolts 5. The fixed, for example, comprises a long nut portion having a hexagonal outer shape as shown and having a female screw formed in the center portion, and a fixing bolt portion screwed to the nut portion,
The female screw formed on the anchor member 7 itself is screwed and fastened to fix. That is, in the present embodiment, the base plate 4 has a required number of bolt insertion holes formed therein, and the fixing bolt 5
Through the bolt insertion holes, and the anchor member 7
A method is adopted in which the flange portion 2 is directly fixed to the anchor member 7 itself by screwing and fastening to the female screw formed in the above. In this embodiment, between the installation base 6 and the base plate 4,
The non-shrink mortar 8 is filled to improve the adhesion of the base plate 4 to the installation base 6 side. Further, in this embodiment, a required number of anchor members 10 are fixed to the upper flange portion 3 of the seismic isolation device 1 with the upper base plate 9 interposed therebetween, and a form is formed around the base plate 9. The lower support 11 of the upper building is formed by casting concrete. Then, a skeleton is further constructed sequentially on the lower support portion 11. In the figure, reference numeral 12 denotes a seismic isolation device 1 such as a lower foundation concrete.
FIG.

Next, the features of the present invention will be described. 2 and 3 exemplify a construction state of an embodiment according to the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a plan view. FIG. 4 is an enlarged view of a main part in which a main part in FIG. 2 is enlarged. As shown in the figure, in the present embodiment, the base plate 4 has an octagonal planar shape, and eight anchor members 7 are attached to the lower surface thereof corresponding to the respective corners. Then, using the space between the anchor members 7, support portions using the adjustment bolts, which are features of the present invention, are disposed at four places, and the base plate 4 is attached via the adjustment bolts themselves. While supporting,
The configuration is such that the installation state of the base plate 4 can be adjusted. Preferably, a resin protective cap 14 is provided in each bolt insertion hole 13 for inserting the fixing bolt 5 into the female screw portion of each anchor member 7 formed in the base plate 4.

Each of the four support portions is configured as shown in FIG. That is, a female screw member 15 composed of a long nut in this embodiment is fixed to each installation position on the lower surface of the base plate 4 by welding or the like, and an adjusting bolt 16 is screwed to the female screw member 15 to perform the adjustment. Base plate 4 via the bolt 16 itself
, And the installation state of the base plate 4 can be adjusted by rotating the adjustment bolt 16 to adjust the screwing position. In this case, the female screw member 15 may be directly fixed to the base plate 4 by welding or the like as in the present embodiment, or the female screw member 15 may be fixed to a mounting plate and then attached. It may be fixed to the base plate 4 by bolts or the like via a plate. Further, in the present embodiment, the through holes 17 are provided at positions corresponding to the female screw members 15 of the base plate 4.
From the upper part of the base plate 4 through the through hole 17, a driver, a box, or the like is formed on an engaging portion 18 formed of a groove, a square hole, a square protrusion, or the like formed on the top of the adjusting bolt 16. The rotation tool can be engaged to perform a rotation operation. Further, an engaging portion 19 is formed in the middle of the shaft portion of the adjusting bolt 16 by welding a nut, crushing a part of the adjusting plate 16 into a flat plate shape, or breaking a square, and the like. The rotation tool can be engaged to perform a rotation operation.

Further, in the present embodiment, corresponding to the lower end of the adjusting bolt 16, the lower foundation concrete or the like mounting portion 12 to which the lower end of the adjusting bolt 16 abuts.
Then, the flat receiving member 20 is fixed using fixing means such as a post-installed anchor. With the interposition of the receiving member 20, the lower end portion of the adjusting bolt 16 and the concrete surface at the time of the rotation operation can be prevented from galling, and a smooth adjusting operation can be obtained.

FIGS. 5 to 7 show an embodiment relating to the support of the lower end of the adjusting bolt 16. FIG. In the embodiment shown in FIG. 5, when the adjustment bolt 16 is fixed to the installation portion 12 such as the lower foundation concrete after the completion of the adjustment work on the installation state of the base plate 4, the receiving member 20 is angled from the angle member or the like. Angular Piece 2
The workability and the welding strength are improved by adopting a method of attaching 1 by welding or the like and welding the adjustment bolt 16 to the angle piece 21. Further, in the embodiment of FIGS. 6 and 7, the lower end of the adjusting bolt 16 is formed with a positioning means comprising a recess or the like which can only be rotatably engaged. The configuration is such that the horizontal position of the base plate 4 can be regulated, thereby improving the workability in the height direction and the positioning accuracy in the horizontal direction in the fine adjustment work. The embodiment of FIG.
As the positioning means, an engaging member 23 having a through-hole 22 is employed, and the embodiment shown in FIG.
4 employs a hook-shaped engaging member 26 formed by welding a cylindrical portion 25.

In the embodiment shown in FIGS. 4 and 5, when installing the seismic isolation device 1, first, the receiving member 20 is set to the installation position of the seismic isolation device 1 and a post-installed anchor or the like is installed. It is set on a predetermined position by fixing it on the installation part 12 of lower foundation concrete or the like, and after that, reinforcing work of a reinforcing bar or the like is performed as necessary. On the other hand, with respect to the base plate 4, an anchor member 7 is provided at a predetermined position on the lower surface thereof.
And the female screw member 15 is fixed by welding or the like, and the adjusting bolt 16 is screwed to the female screw member 15,
Further, a resin protective cap 14 is provided on the bolt insertion hole 13 corresponding to the anchor member 7 to prepare for installation.

After the above-mentioned preparation work is completed, the base plate 4 prepared in the next installable state is moved to the installation position, and each lower end of the adjusting bolt 16 is received by the receiving member 20.
Place it on top. Then, the through-hole 1
7 from above the base plate 4
When a turning tool such as a screwdriver is engaged with an engaging portion 18 formed on the top of 6 to perform a rotating operation, a turning tool such as a spanner is engaged with an engaging portion 19 formed on the adjusting bolt 16. By performing the rotating operation, each adjusting bolt 1
By adjusting the screw position of 6, the installation state of the base plate 4, such as the installation height and the horizontal state, is adjusted. And
After adjusting the installation state of the base plate 4,
If necessary, fine adjustment is made to the horizontal installation position in accordance with the blackout position by using a plumb bob or the like, and the lower end of the adjustment bolt 16 and the receiving member 20 are fixed by welding or the like. The adjustment state of each adjustment bolt 16 is fixed. In this case, in the embodiment of FIG. 5, an angle piece 21 is used, and a horizontal portion is welded to the receiving member 20 while the vertical surface thereof is applied to the adjustment bolt 16. The adjustment bolt 16 is welded to the vertical portion.

In the case of the embodiment shown in FIG. 6 or FIG. 7, preparation for installation on the base plate 4 is made in the same manner as described above, and the female screw member 15 fixed to the lower surface of the base plate 4 is attached. The through hole 22 of the engaging member 23 or the cylindrical portion 25 of the engaging member 26 is rotatably fitted to the lower end of the screwed adjusting bolt 16, and the installation portion 1
2 is movably mounted on the receiving member 20 previously fixed at a predetermined position. In the operation of adjusting the installation state of the base plate 4 by the adjusting bolt 16, the horizontal position of the base plate 4 fluctuates due to the adjusting operation by the adjusting bolt 16, and the horizontal position of the base plate 4 is changed for other reasons. Since re-adjustment may be required, until the final fine adjustment step, the adjustment work is performed without fixing the engaging members 23 and 26 to the receiving member 20 side. In this case, since the lower end of the adjusting bolt 16 is fitted into the through hole 22 or the cylindrical portion 25, the engaging members 23 and 26 follow the movement of the adjusting bolt 16 and the receiving members Will move up. When the main adjustment work, that is, the adjustment of the installation position of the base plate 4 in the horizontal direction, the adjustment of the installation height, and the main adjustment of the horizontal state is completed, and the final fine adjustment stage is reached, it is necessary to Then, the final fine adjustment of the horizontal installation position is performed again using the down swing or the like in accordance with the blackout position, and the engaging members 23 and 26 are fixed to the receiving member 20 by welding or the like. Then, in such a state, fine adjustment regarding the installation height and the horizontal state of the base plate 4 is performed. In the fine adjustment work relating to the installation height and the horizontal state of the base plate 4, the engagement members 23 and 26 reliably prevent the base plate 4 from moving in the horizontal direction, and the predetermined installation position is maintained. The workability is improved and the final work accuracy is improved. When the above fine adjustment is completed, the lower end of the adjusting bolt 16 is engaged with the engaging member 23 in the embodiment of FIG. 6, and is engaged with the engaging member 23 in the embodiment of FIG. The cylindrical portion 25 of the member 26
Is fixed by welding or the like.

As for the manner of regulating the adjusting bolts 16 in the horizontal direction at the final fine adjustment work stage, as shown in FIG. By welding the angle piece 27 to the receiving member 20 side while applying a vertical flat portion from the outside, the movement of the adjustment bolt 16 in the horizontal direction is regulated by the interaction of the entire angle piece 27, and fine adjustment is performed. It is also possible to prevent the horizontal position of the base plate 4 from fluctuating during the operation. Also, as shown in FIG. 9, the angle pieces 28 are welded to the receiving member 20 side while applying inner corners from the inside of the respective adjustment bolts 16, so that the adjustment is made by the interaction of the entire angle pieces 28. It is also possible to restrict the horizontal movement of the bolt 16 for use. In the above case, when the final fine adjustment work is completed, each adjustment bolt 1
6 is fixed to the angle pieces 27 and 28 by welding or the like.

After the adjustment work and the fixing work regarding the installation position and the installation state of the base plate 4 are completed as described above, a formwork is assembled around the base plate 4 and concrete is cast to form the installation base portion 6. I do. In that case, as shown in FIG. 1, the casting operation is divided into two stages,
First, concrete is poured to a predetermined height of the installation base portion 6, and after solidification, a non-shrink mortar 8 is filled between the upper surface of the concrete and the base plate 4 to thereby achieve adhesion of the lower surface of the base plate 4. Is also effective. Since the adjusting bolt 16 is buried in the installation base portion 6, there is no need to disassemble and remove it, and the work load is eliminated. Thereafter, as in the prior art, the resin protective cap 14 is removed, the seismic isolation device 1 is placed above the base plate 4, and the seismic isolation device 1 is tightened and fixed with the fixing bolts 5, and then the upper flange portion 3 is fixed. A required number of anchor members 10 are fixed with the upper base plate 9 interposed therebetween, a formwork is formed around the base plate 9, and concrete is poured into the lower support portion 1 of the upper building.
1 is formed, and then a frame is successively constructed with respect to the lower support portion 11.

In the embodiment described above, the case where the base plate 4 is supported via the adjusting bolts 16 to the installation portion 12 itself such as the lower foundation concrete as described above is shown in FIG. As described above, the installation unit 12
It is also possible to form a supporting frame 29 and to support the adjusting bolt 16 by a receiving portion 31 formed at the upper end of the support column 30. Also in this case, in a state where the base plate 4 is supported on the receiving portion 31, the adjustment of the installation state of the base plate 4 is performed through the respective adjusting bolts 16, and then the welding is performed with the receiving portion 31 by welding or the like. Casting concrete while fixing is the same as in the above-described embodiment.

[0021]

According to the present invention, the following effects can be obtained. (1) Since the base plate is configured to be supported via the adjusting bolt itself, the installation space can be significantly reduced as compared with the related art using a support frame or the like. Interference with reinforcing bars and the like arranged in the part can be greatly reduced. (2) Since the adjustment work relating to the installation state such as the height and the horizontal state of the base plate can be performed only by rotating the adjustment bolt, the workability can be greatly improved and the work space can be greatly reduced. (3) If a through hole is formed at a position corresponding to the female screw member of the base plate, and the adjusting bolt can be rotated from above the base plate through the through hole, the upper portion of the base plate having a large working space can be obtained. Since the adjustment work can be performed in the above, workability can be further improved. (4) Positioning means which can be rotatably engaged with the lower end of the adjusting bolt is provided so that the height adjustment can be performed while regulating the horizontal movement of the base plate via the positioning means. With this configuration, it is possible to improve the workability in the fine adjustment work regarding the installation state such as the installation height and the horizontal state of the base plate and to improve the final work accuracy.

[Brief description of the drawings]

FIG. 1 is a front view showing an installation completed state of a seismic isolation device.

FIG. 2 is a front view showing a construction state of the embodiment of the present invention.

FIG. 3 is a plan view showing a construction state of the embodiment.

FIG. 4 is an enlarged view of a main part in FIG.

FIG. 5 is a partially enlarged view showing another embodiment.

FIG. 6 is a partially enlarged view showing an embodiment relating to positioning means.

FIG. 7 is a partially enlarged view showing another embodiment of the positioning means.

FIG. 8 is a plan view of an installation portion showing another embodiment relating to the positioning of the adjustment bolt.

FIG. 9 is a plan view of an installation portion showing another embodiment relating to the positioning of the adjustment bolt.

FIG. 10 is a front view showing a construction state of another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Seismic isolation device, 2, 3 ... Flange part, 4 ... Base plate, 5 ... Fixing bolt, 6 ... Installation base part, 7 ... Anchor member, 8 ... Non-shrink mortar, 9 ... Base plate, 10
... Anchor member, 11 Lower support part, 12 Seismic isolation device installation part, 13 Bolt insertion hole, 14 Protection cap, 1
5 female screw member, 16 adjustment bolt, 17 through hole,
18 ... engaging part, 19 ... engaging part, 20 ... receiving member, 21
... Angle pieces, 22 ... Through holes, 23 ... Engaging members, 2
4: bottom plate, 25: cylindrical portion, 26: engaging member, 27, 28
... Angle piece, 29 ... Support frame, 30 ... Post, 31 ... Receiving part

Claims (6)

[Claims] 1. A female screw member is provided on a lower surface side of a base plate for installing a seismic isolation device, the base plate is supported via an adjusting bolt screwed to the female screw member, and the adjusting bolt is rotated. Adjusting the screwing position to adjust the installation state of the base plate. 2. The seismic isolation device according to claim 1, wherein, in the adjustment work of the installation state of the base plate, the fine adjustment work is performed in a state where a lower end portion of the adjustment bolt is positioned so as to be rotatable only. How to adjust the installation state of the device. 3. A female screw member is provided on a lower surface side of a base plate for installing a seismic isolation device, and an adjusting bolt screwable to the female screw member is provided, and the base plate is supported via the adjusting bolt. The installation state adjusting device of the seismic isolation device, wherein the installation state of the base plate can be adjusted by adjusting the screwing position by rotating the adjustment bolt in the state. 4. A through hole is formed in the base plate at a position corresponding to the female screw member, and an adjusting bolt screwed to the female screw member from above the base plate through the through hole is rotated. The installation state adjusting device for the seismic isolation device according to claim 3, wherein the screwing position can be adjusted. 5. An adjusting part formed at an appropriate position of the adjusting bolt screwed to the female screw member, and a turning tool is engaged with the engaging part to rotate the adjusting bolt. The installation state adjusting device for the seismic isolation device according to claim 3, wherein the screwing position can be adjusted. 6. A positioning means capable of engaging the lower end of the adjusting bolt rotatably only so as to finely adjust the installation state while regulating the horizontal position of the base plate via the positioning means. The installation condition adjusting device of the seismic isolation device according to any one of claims 3 to 5, wherein the device is configured.