JP6540225B2 - Method of replacing seismic isolation device, flange position adjustment mechanism of seismic isolation device, and flange position adjustment device of seismic isolation device - Google Patents

Description

  The present invention relates to a method of replacing a seismic isolation device, a flange position adjustment mechanism of the seismic isolation device, and a flange position adjustment device of the seismic isolation device.

  When problems such as aged deterioration or damage occur in the seismic isolation device provided between the upper structure and the lower structure, it is necessary to replace the seismic isolation device. At this time, the shape of the structure may change from the time of completion due to temperature change, drying shrinkage, etc. Thus, the positions of the upper and lower flanges of the seismic isolation device (in other words, bolt holes and lower portions of the upper structure) The horizontal position of the bolt holes of the structure may be shifted. So, for example, in patent document 1, when installing a new seismic isolation apparatus, one flange is fixed and the position adjustment apparatus which provided multiple jacks inside the frame of the closed plane shape was used. , The method of adjusting the position of the other flange is proposed.

Japanese Patent Laid-Open No. 2001-27282

  However, in the above-described method, it takes time and labor to attach the frame on which the plurality of jacks are installed to the seismic isolation apparatus and the operation to adjust the position of the flange, and there is a problem in workability.

  This invention is made in view of this subject, Comprising: The main purpose is to aim at the improvement of construction nature.

In order to achieve such an object, the method for replacing a seismic isolation system of the present invention is
The method of replacing the seismic isolation device in which the upper flange is attached to the upper structure by the upper bolt and the lower flange is attached to the lower structure by the lower bolt from the existing seismic isolation device to the new seismic isolation device There,
Removing the upper structure by jacking up and removing the existing seismic isolation device;
By installing the new seismic isolation device and finally tightening one of the upper bolt and the lower bolt, any one flange of the upper flange and the lower flange is used as the upper structure or the lower structure A first bolting step to fix to one side of the
Engaging an engagement member in a bolt hole of the other flange of the upper flange and the lower flange and pushing or pulling the engagement member with the upper structure and the lower structure as a fulcrum Adjusting the position of the other flange by
A second bolting step of temporarily fixing the other of the upper bolt or the lower bolt to temporarily fix the other flange to the other of the upper structure or the lower structure;
A third bolting step of jacking down the upper structure to fully tighten the other of the upper bolt and the lower bolt;
Have
The bolt hole of the other flange is a bolt hole for inserting the other of the upper bolt or the lower bolt .
According to such a method of replacing the seismic isolation device, the position of the flange can be easily adjusted, and the workability can be improved.

In order to achieve such an object, the flange position adjusting mechanism of the seismic isolation system of the present invention is
A flange position adjusting mechanism of a seismic isolation system, comprising: an upper flange attached to the upper structure; and a lower flange attached to the lower structure,
A fixing portion for fixing one of the upper flange and the lower flange to one of the upper structure or the lower structure;
Bolt holes for the other flange of the upper flange and the lower flange, for inserting bolts for fixing the other flange to the other of the upper structure or the lower structure An engagement member that engages;
A pushing and pulling mechanism that pushes or pulls the engaging member engaged with the bolt hole with the upper structure and the lower structure as a fulcrum;
, And the position of the other flange is adjusted by moving the engagement member by the push and pull mechanism.

In order to achieve such an object, the flange position adjusting device of the seismic isolation device of the present invention is
In a seismic isolation apparatus having an upper flange attached to an upper structure and a lower flange attached to a lower structure, any one flange of the upper flange and the lower flange is the upper structure or the lower structure A flange position adjusting device of a seismic isolation device for adjusting the position of either the upper flange or the lower flange while fixed to one of the two,
An engagement member engaged with a bolt hole of the other flange for inserting a bolt for fixing the other flange to the other of the upper structure or the lower structure;
A pushing and pulling mechanism that pushes or pulls the engaging member engaged with the bolt hole with the upper structure and the lower structure as a fulcrum;
A flange position adjusting device of a seismic isolation system, comprising: moving the engaging member by the pushing and pulling mechanism to adjust the position of the other flange.

In the flange position adjusting device of the seismic isolation system, it is preferable that the flanges are respectively arranged in two orthogonal directions around the seismic isolation system.
According to the flange position adjusting device of such a seismic isolation device, the flange can be adjusted to any position.

In order to achieve such an object, the flange position adjusting device of the seismic isolation device of the present invention is
In a seismic isolation apparatus having an upper flange attached to an upper structure and a lower flange attached to a lower structure, any one flange of the upper flange and the lower flange is the upper structure or the lower structure A flange position adjusting device of a seismic isolation device for adjusting the position of either the upper flange or the lower flange while fixed to one of the two,
An engagement member engaged with a bolt hole of the other flange;
A pushing and pulling mechanism that pushes or pulls the engaging member engaged with the bolt hole with the upper structure and the lower structure as a fulcrum;
A flange position adjusting device for moving the engagement member by the push and pull mechanism to adjust the position of the other flange,
Are arranged in two orthogonal directions of the periphery of the seismic isolation device,
The fulcrum point of each of the flange position adjustment devices is a horizontal sliding bearing in which the push and pull mechanism of the flange position adjustment device is perpendicular to a direction in which the engagement member is pushed or pulled .
It is characterized by

The flange position adjusting device of the seismic isolation device, wherein the pushing and pulling mechanism includes a slide member provided with the engagement member, a jack for moving the slide member, the upper structure, and the lower structure. It is desirable to provide a frame part which supports the slide member and the jack while abutting.
According to the flange position adjusting device of such a seismic isolation device, the position of the flange can be easily adjusted.

It is desirable that it is a flange position adjustment device of this seismic isolation device, and the above-mentioned jack is arranged by the side of the above-mentioned seismic isolation device to the above-mentioned frame part.
According to the flange position adjusting device of such a seismic isolation device, space saving can be achieved, and it can be installed in a narrow space.

  According to the present invention, the workability can be improved.

FIG. 1A and FIG. 1B are conceptual diagrams for explaining displacement of a flange of a seismic isolation device. FIG. 2A and FIG. 2B are explanatory drawings about the outline of flange position adjustment. 3A and 3B are layout diagrams of the flange position adjusting device 20 of the present embodiment. It is a figure which shows the structure of the flange position adjustment apparatus 20 of this embodiment. 5A to 5F are explanatory views of a method of replacing the seismic isolation device 10. FIG.

=== Embodiments ===
<Displacement of flange of seismic isolation device>
FIG. 1A and FIG. 1B are conceptual diagrams for explaining displacement of a flange of a seismic isolation device. In addition, FIG. 1A shows the state at the time of completion of the existing building, and FIG. 1B simply shows the state after completion of the existing building.

  The seismic isolation device 10 is interposed between the upper structural body 1 and the lower structural body 3 and seismically supports the upper structural body 1. The seismic isolation device 10 is of a laminated rubber type, and is configured by sandwiching a laminated body 12 in which rubber and steel plates are alternately stacked by an upper flange 11 and a lower flange 13. A plurality of bolt holes (bolt holes 11a and bolt holes 13a described later) are formed in the upper flange 11 and the lower flange 13, respectively. The upper flange 11 is fixed to the upper structure 1 by a bolt (not shown) (upper bolt 16 described later), and the lower flange 13 is fixed to the lower structure 3 by a not illustrated bolt (lower bolt 18 described later) It is done.

  When problems such as aged deterioration and damage occur in this seismic isolation device 10, it becomes necessary to replace the seismic isolation device 10. Here, at the time of completion of the building, as shown in FIG. 1A, the upper flange 11 and the lower flange 13 of the seismic isolation device 10 are in the same position in the horizontal direction (displacement does not occur). However, when time passes after completion, as shown in FIG. 1B, the shape of the upper structure 1 may change due to temperature change or drying shrinkage, whereby the upper flange 11 and the lower flange of the seismic isolation device 10 Misalignment may occur in the 13 horizontal positions. In particular, as shown in the figure, the displacement of the end portion of the seismic isolation device 10 becomes larger than that of the central portion. And in this way, the position of the upper flange 11 and the lower flange 13 is stabilized in the shifted state.

  If such positional deviation occurs, when installing the new seismic isolation device 10, for example, if the upper flange 11 is fixed (bolted) to the upper structure 1, the bolt holes of the lower flange 13 and the lower structure The position with the bolt hole 3 does not match. In this case, since the position of the bolt hole of the lower structure 3 can not be changed, it is necessary to adjust the position of the lower flange 13.

  As a method of adjusting the position of the flange, one flange is fixed and a method of pulling the flange which is not fixed using a chain block or the like, or a plurality of jacks inside a closed planar frame There is known a method of attaching the installed position adjustment device to a flange which is not fixed and pushing the flange with a jack. However, in these methods, the installation work of the apparatus takes time and requires a large-scale temporary construction material, and there is a problem in the workability. Moreover, it was difficult to obtain a large reaction force in a narrow space.

  Therefore, in the present embodiment, by using the flange position adjusting device 20 described later, the workability is improved, and the position adjustment of the flange can be easily performed.

<Overview>
First, an outline of flange position adjustment in the present embodiment will be described.
FIG. 2A and FIG. 2B are explanatory drawings about the outline of flange position adjustment. In FIG. 2A, the lower flange 13 is fixed to the lower structure 3 by the lower bolt 18, and the horizontal position of the bolt hole 11a of the upper flange 11 and the bolt hole 1a of the upper structure 1 deviates for the reason described above. ing.

  So, in this embodiment, the position of a flange (here upper flange 11) is adjusted using the flange position adjustment apparatus 20. As shown in FIG. The flange position adjusting device 20 includes a pair of frames 30, a hydraulic jack 40, and a slide member 50. Details of each part will be described later.

  The hydraulic jack 40 and the slide member 50 are supported by a pair of frames 30, and the slide member 50 is movable in the horizontal direction. Further, the slide member 50 is provided with a protrusion 51 that abuts on the hydraulic jack 40, and an engagement pin 52 that engages with the bolt hole of the flange (here, the bolt hole 11a of the upper flange 11).

  The engagement pin 52 of such a flange position adjustment device 20 is engaged with the bolt hole 11 a of the upper flange 11 as shown in FIG. 2A. Then, as shown in FIG. 2B, when the hydraulic jack 40 is extended, the hydraulic jack 40 abuts on the projection 51 of the slide member 50 and pushes the projection 51 with the upper structure 1 and the lower structure 3 as a fulcrum . Thereby, the slide member 50 (and the engagement pin 52) moves in the horizontal direction, and the upper flange 11 is pulled in the movement direction of the engagement pin 52. Thus, the positions of the bolt holes 11 a of the upper flange 11 and the bolt holes 1 a of the upper structure 1 are made to coincide with each other, and the upper flange 11 is fixed to the upper structure 1 by the upper bolts 16.

  Thus, by using the flange position adjustment device 20, the position of the flange of the seismic isolation device 10 can be easily adjusted.

Regarding the Configuration of Flange Position Adjustment Device 20
3A and 3B are layout diagrams of the flange position adjusting device 20 of the present embodiment. FIG. 3A is a horizontal sectional view at the position of the lower flange 13 and FIG. 3B is a side view. Note that FIG. 3B shows a partial cross section. Moreover, FIG. 4 is sectional drawing and arrow view which show the structure of the flange position adjustment apparatus 20 of this embodiment. In the following description, each direction is defined as shown in the figure. That is, in a horizontal plane perpendicular to the vertical direction, two directions (horizontal directions) orthogonal to each other are taken as the left-right direction and the front-rear direction.

  In the present embodiment, as shown in FIGS. 3A and 3B, the flange position adjusting device 20 is disposed on the front side and the right side of the seismic isolation device 10. Each drawing of FIG. 4 shows the configuration of the right one of the two flange position adjusting devices 20 of FIGS. 3A and 3B, and in the following description, the flange position adjusting device 20 on the right side will be described. The same applies to the configuration of the flange position adjustment device 20 of (but the directions are different). By arranging the flange position adjusting device 20 in the front-rear direction and the left-right direction (two directions orthogonal to each other) as described above, the position of the flange can be adjusted arbitrarily.

  As described above, the flange position adjusting device 20 of the present embodiment mainly includes the pair of frames 30, the hydraulic jack 40, and the slide member 50. In the description of the outline (FIGS. 2A and 2B), the flange position adjustment device 20 adjusts the position of the upper flange 11, but in the following description, the position of the lower flange 13 is adjusted. For this reason, in the following description, the position and the direction of the slide member 50 in the flange position adjusting device 20 are different from those in the outline (FIGS. 2A and 2B).

  The pair of frames 30 are two back-to-back two U-shaped grooved steels that support the hydraulic jack 40 and the slide member 50. The pair of frames 30 are respectively attached to the height adjusting jack base 31, and the height (vertical position) can be adjusted by the height adjusting jack base 31. Further, the pair of frames 30 is provided with a grip 33, an upper contact plate 34, and a lower contact plate 35.

  The grips 33 are provided along the left-right direction so as to face each other on the inner side of the pair of frames 30. And the holding part 33 holds the lower part (lower side flange) of the said slide member 50 from the upper and lower sides so that the slide member 50 (H-shaped steel) can move horizontally (here horizontal direction). doing.

  The upper contact plate 34 is a portion that contacts the side surface of the upper structure 1 and is provided at the upper left end of the pair of frames 30. In addition, a mounting plate 34a that protrudes to the right is provided at the center of the upper contact plate 34 in the front-rear direction, and a pair of frames 30 are fixed by bolts across the mounting plate 34a. Thus, the upper contact plate 34 is attached to the pair of frames 30.

  The lower contact plate 35 is a portion that contacts the lower structure 3 and is provided at the lower left end of the pair of frames 30. Further, a mounting plate 35a that protrudes to the right is provided at the center of the lower contact plate 35 in the front-rear direction, and a pair of frames 30 are fixed by bolts across the mounting plate 35a. Thus, the lower contact plate 35 is attached to the pair of frames 30.

  In addition, if the friction coefficient of the surface of the upper contact plate 34 and the lower contact plate 35 is large, as shown in FIG. 3, when the flange position adjusting device 20 is arranged in two directions orthogonal to each other, two flange position adjusting devices At 20, it becomes difficult to pull the lower flange 13 (adjust the position). Therefore, in the present embodiment, the friction coefficient of the contact surface between the upper contact plate 34 and the lower contact plate 35 and the frame 30 is reduced, and the upper contact plate 34 and the lower contact plate 35 are slid. It is supposed to be a support. Specifically, grease is applied to the contact surface between the upper contact plate 34 and the lower contact plate 35 and the frame 30 to reduce the coefficient of friction. Thus, for example, the upper contact plate 34 and the lower contact plate 35 of the flange position adjustment device 20 disposed on the right side (horizontal direction) of the seismic isolation device 10 in FIG. There is. Further, in FIG. 3A, the upper contact plate 34 and the lower contact plate 35 of the flange position adjustment device 20 disposed on the front side (front-rear direction) of the seismic isolation device 10 are slidingly supported in the left-right direction. By doing so, the lower flange 13 can be pulled in the left-right direction and in the front-rear direction respectively by the two flange position adjusting devices 20, and adjustment in any direction can be facilitated.

  Further, in FIG. 4, the adjustment member 36 is attached to the lower contact plate 35. The adjusting member 36 abuts against both the upper structure 1 and the lower structure 3 when the positions of the side surfaces of the lower structure 3 of the upper structure 1 at the places where the pair of frames 30 are installed are different. It is to If a plurality of adjusting members 36 having different thicknesses (lengths in the left-right direction in FIG. 4) are prepared, it becomes possible to securely attach the pair of frames 30 to various structures. In addition, the adjustment member 36 may not be provided as long as the position of the side surface of the lower structure 3 of the upper structure 1 at the place where the pair of frames 30 is installed is the same. Also, a hydraulic jack is provided on the upper side (position facing the upper structure 1) or the lower side (position facing the lower structure 3) of the pair of frames 30, and the contact plate is brought into contact with the structure by the hydraulic jack. You may do so. In this case, the plurality of adjustment members 36 may not be prepared.

  The hydraulic jack 40 is fixed to the pair of frames 30 so as to be extensible to the right via the pair of holding members 41 and the hydraulic jack reaction member 42.

  The pair of holding members 41 are each formed of a U-shaped grooved steel in cross section, and extend in the left direction on the left side of the pair of frames 30 (the side of the seismic isolation device 10 with respect to the frame 30) It is attached back to back to do. The hydraulic jack 40 is held via the hydraulic jack reaction member 42.

  The hydraulic jack reaction member 42 is provided to connect the left ends of the pair of holding members 41. A hydraulic jack 40 is attached to the right side of the hydraulic jack reaction member 42, and the hydraulic jack 40 is provided on the side (left side) of the seismic isolation device 10 with respect to the pair of frames 30. Thereby, space saving can be achieved, and the flange position adjusting device 20 can be installed in a narrow space. However, the present invention is not limited to this, and the hydraulic jacks 40 may be provided on the opposite side (right side) of the seismic isolation device 10 with respect to the pair of frames 30. In this case, the length of the slide member 50 may be increased, and the protrusion 51 described later may be positioned ahead of the hydraulic jack 40.

  As described above, the H-shaped steel is used for the slide member 50, and the slide member 50 is gripped by the grips 33 on the inner side of the pair of frames 30 so as to be slidable in the left-right direction. In the present embodiment, the slide member 50 is provided below the hydraulic jack 40 in order to adjust the position of the lower flange 13. However, the present invention is not limited to this, and the slide member 50 may be provided above the hydraulic jack 40 as outlined (FIGS. 2A and 2B), or the slide member 50 may be provided beside the hydraulic jack 40. Good.

  Further, the slide member 50 is provided with a protrusion 51 and an engagement pin 52.

  The projecting portion 51 is provided to project upward at the right end of the slide member 50. The protrusion 51 abuts on the hydraulic jack when the hydraulic jack 40 is extended.

  The engagement pin 52 is a portion to be engaged with the bolt hole of the flange, and is provided to project downward at the right end of the slide member 50. Although the engaging pin 52 is directly engaged with the bolt hole of the flange in the outline description, the intermediate member 70 is used here.

  The intermediate member 70 has a shape corresponding to a part of the outer periphery of the flange (here, the lower flange 13), and two engagement pins 72 engaged with the two bolt holes of the lower flange 13; An engagement hole 74 provided between the engagement pins 72 is provided. The two engagement pins 72 of the intermediate member 70 are respectively engaged with the bolt holes 13 a of the lower flange 13, and the engagement pins 52 of the slide member 50 are engaged with the engagement holes 74 of the intermediate member 70. Thereby, the engagement pin 52 is attached to the lower flange 13 via the intermediate member 70. In this case, the portion where the engagement pin 52 and the intermediate member 70 are combined corresponds to the engagement member.

  By using such an intermediate member 70, for example, as shown in FIG. 3A, even if the bolt hole 13a of the lower flange 13 is not located at the installation position of the flange position adjusting device 20, the slide member 50 is fixed to the lower flange 13. Can be attached. Further, in FIG. 3A, if the engagement pin 52 of the slide member 50 is directly engaged with the bolt hole 13a and pulled, there is a possibility that the vibration isolation device 10 may twist, but using the intermediate member 70 It can be suppressed. In addition, if a plurality of intermediate members 70 having different shapes (such as the arrangement of the two engagement pins 72 and the engagement holes 74) are prepared, attachment to various types of seismic isolation devices 10 can be supported. For example, even if the engagement pin 52 does not reach the flange, the flange position adjusting device 20 can be attached to the flange by using the intermediate member 70 having a corresponding shape.

<Operation of Flange Position Adjustment Device 20>
When the hydraulic jack 40 is extended in the right direction with the flange position adjusting device 20 (here, the flange position adjusting device 20 on the right side) installed as shown in FIGS. 3A and 3B, the hydraulic jack 40 is a protrusion of the slide member 50 51 and contact. The reaction force in the left direction is received by this contact, but the hydraulic jack 40 is fixed to the pair of frames 30 via the hydraulic jack reaction member 42 and the pair of holding members 41, and the upper structure 1 and the upper structure 1 The protrusion 51 (slide member 50) can be pushed rightward with the lower structure 3 as a fulcrum. In other words, the engagement pin 52 (intermediate member 70) can be pulled rightward with the upper structure 1 and the lower structure 3 as a fulcrum, and the lower flange 13 can be pulled rightward.

  Similarly, the front flange positioning device 20 can pull the engagement pin 52 (intermediate member 70) in the forward direction, and can pull the lower flange 13 in the forward direction. Therefore, the position of the lower flange 13 can be arbitrarily adjusted by the two flange position adjusting devices 20.

<About the replacement method of seismic isolation system>
Next, the method of replacing the seismic isolation device 10 of the present embodiment will be described with reference to the drawings.

  5A to 5F are explanatory views of a method of replacing the seismic isolation device 10. FIG.

  First, as shown in FIG. 5A, the seismic isolation device replacement jack 100 is installed between the upper structural body 1 and the lower structural body 3. Note that the upper flange 11 and the lower flange 13 of the existing seismic isolation device 10 are misaligned in the horizontal direction for the reason described above. That is, the bolt holes 1a of the upper structure 1 and the bolt holes 3a of the lower structure 3 are displaced in the horizontal direction.

  Next, as shown in FIG. 5B, the upper structural body 1 is jacked up by the seismic isolation device replacement jack 100, and the existing seismic isolation device 10 is removed (corresponding to the removal step).

  Then, as shown in FIG. 5C, a new seismic isolation device 10 is installed, and the upper bolt 16 (corresponding to a fixing member) corresponds to the bolt hole 11a of the upper flange 11 of the seismic isolation device 10 and the bolt hole 1a of the upper structure 1 ) Is fixed to fix the upper flange 11 to the upper structure 1 (corresponding to a first bolting step).

  Subsequently, as shown in FIG. 5D, the upper structural body 1 is replaced by the seismic isolation device replacing jack 100 until the clearance between the lower structural body 3 and the lower flange 13 of the seismic isolation device 10 becomes approximately 0 to 1 mm. Jack down.

  After that, as shown in FIG. 5E, the flange position adjusting device 20 is attached, the engagement pin 52 is engaged with the bolt hole 13a of the lower flange 13, and the hydraulic jack 40 is extended. The slide member 50 is slid with the body 3 as a fulcrum. Thereby, position adjustment of lower flange 13 is performed (equivalent to a position adjustment process). Although only one flange position adjusting device 20 is described in FIG. 5E, by arranging the flange position adjusting devices 20 in two directions orthogonal to each other as shown in FIGS. 3A and 3B, it is possible to lower in any direction. The position of the flange 13 can be adjusted. Then, the lower bolt 18 is lightly engaged with the bolt hole 13a of the lower flange 13 and the bolt hole 3a of the lower structure 3 (corresponding to temporary tightening) to temporarily fix the lower flange 13 to the lower structure 3 (second bolting Equivalent to the process).

  Finally, as shown in FIG. 5F, the seismic isolation device replacement jack 100 is jacked down until the load is completely released. Then, the flange position adjusting device 20 is removed, and the lower bolt 18 is fully tightened to completely fix the lower flange 13 and the lower structure 3 (corresponding to a third bolting step).

  Thus, in the present embodiment, with the upper flange 11 fixed to the upper structure 1, the engagement pin 52 (or the intermediate member 70) of the flange position adjusting device 20 is engaged with the bolt hole 13 a of the lower flange 13. The flange position adjusting device 20 can be easily installed. Further, the flange position adjusting device 20 can slide the slide member 50 by the hydraulic jack 40 with the upper structure 1 and the lower structure 3 as fulcrums. As a result, the position of the lower flange 13 can be easily adjusted, and the workability can be improved.

  The lower flange 13 may be fixed to the lower structure 3 and the position of the upper flange 11 may be adjusted as shown in the outline description (FIGS. 2A and 2B).

=== Other Embodiments ===
The above embodiments are for the purpose of facilitating the understanding of the present invention, and are not for the purpose of limiting the present invention. It goes without saying that the present invention can be modified and improved without departing from the gist thereof, and that the present invention includes the equivalents thereof. In particular, the embodiments described below are also included in the present invention.

  In the above-mentioned embodiment, although flange position adjustment device 20 (slide member 50) pulled a flange of seismic isolation device 10, it may not be limited to this, and may be made to press. In this case, for example, the upper structure and the lower structure of the adjacent seismic isolation devices may be pressed as a fulcrum (a reaction force may be obtained). However, it is advantageous because pulling is easier to install and there is no problem of buckling.

  Moreover, in the above-mentioned embodiment, although the two flange position adjustment apparatuses 20 were arrange | positioned to one seismic isolation apparatus 10, it does not restrict to this. For example, in the case of adjusting the position in only one direction, the flange position adjusting device 20 may be one. In this case, the upper contact plate 34 and the lower contact plate 35 may not be slide bearings (no grease may be applied). Alternatively, the pair of frames 30 may be brought into direct contact with the upper structure 1 and the lower structure 3 without providing the upper contact plate 34 and the lower contact plate 35.

  Moreover, in the above-mentioned embodiment, although the flange position adjustment apparatus 20 was attached to the jack base 31 for height adjustment, it may not restrict to this and may be attached to the trolley | bogie with a hand pallet, for example. In this case, the flange position adjusting device 20 can be easily moved (carried). It is also possible to adjust the height.

DESCRIPTION OF SYMBOLS 1 upper structure 1a bolt hole 3 lower structure 3a bolt hole 10 seismic isolation apparatus 11 upper flange 11a bolt hole 12 laminated body 13 lower flange 13a bolt hole 16 upper bolt 18 lower bolt 20 flange position adjustment device 30 frame 31 height adjustment Jack base 33 grip portion 34 upper contact plate 34a mounting plate 35 lower contact plate 35a mounting plate 36 adjustment member 40 hydraulic jack 41 holding member 42 hydraulic jack reaction member 50 slide member 51 projection 52 engagement pin 70 middle Member 72 engagement pin 74 engagement hole

Claims (7)

The method of replacing the seismic isolation device in which the upper flange is attached to the upper structure by the upper bolt and the lower flange is attached to the lower structure by the lower bolt from the existing seismic isolation device to the new seismic isolation device There,
Removing the upper structure by jacking up and removing the existing seismic isolation device;
By installing the new seismic isolation device and finally tightening one of the upper bolt and the lower bolt, any one flange of the upper flange and the lower flange is used as the upper structure or the lower structure A first bolting step to fix to one side of the
Engaging an engagement member in a bolt hole of the other flange of the upper flange and the lower flange and pushing or pulling the engagement member with the upper structure and the lower structure as a fulcrum Adjusting the position of the other flange by
A second bolting step of temporarily fixing the other of the upper bolt or the lower bolt to temporarily fix the other flange to the other of the upper structure or the lower structure;
A third bolting step of jacking down the upper structure to fully tighten the other of the upper bolt and the lower bolt;
Have
The bolt hole of said other flange is a bolt hole for making the other of said upper bolt or said lower bolt penetrate , The replacement method of the seismic isolation apparatus characterized by the above-mentioned . A flange position adjusting mechanism of a seismic isolation system, comprising: an upper flange attached to the upper structure; and a lower flange attached to the lower structure,
A fixing portion for fixing one of the upper flange and the lower flange to one of the upper structure or the lower structure;
Bolt holes for the other flange of the upper flange and the lower flange, for inserting bolts for fixing the other flange to the other of the upper structure or the lower structure An engagement member that engages;
A pushing and pulling mechanism that pushes or pulls the engaging member engaged with the bolt hole with the upper structure and the lower structure as a fulcrum;
A flange position adjusting mechanism of a seismic isolation system, comprising: moving the engaging member by the push and pull mechanism to adjust the position of the other flange. In a seismic isolation apparatus having an upper flange attached to an upper structure and a lower flange attached to a lower structure, any one flange of the upper flange and the lower flange is the upper structure or the lower structure A flange position adjusting device of a seismic isolation device for adjusting the position of either the upper flange or the lower flange while fixed to one of the two,
An engagement member engaged with a bolt hole of the other flange for inserting a bolt for fixing the other flange to the other of the upper structure or the lower structure;
A pushing and pulling mechanism that pushes or pulls the engaging member engaged with the bolt hole with the upper structure and the lower structure as a fulcrum;
A flange position adjusting device of a seismic isolation system, comprising: moving the engaging member by the pushing and pulling mechanism to adjust the position of the other flange. It is a flange position adjustment apparatus of the seismic isolation apparatus of Claim 3, Comprising:
Arranged in two orthogonal directions around the seismic isolation device,
Flange position adjusting device for seismic isolation device characterized in that. In a seismic isolation apparatus having an upper flange attached to an upper structure and a lower flange attached to a lower structure, any one flange of the upper flange and the lower flange is the upper structure or the lower structure A flange position adjusting device of a seismic isolation device for adjusting the position of either the upper flange or the lower flange while fixed to one of the two,
An engagement member engaged with a bolt hole of the other flange;
A pushing and pulling mechanism that pushes or pulls the engaging member engaged with the bolt hole with the upper structure and the lower structure as a fulcrum;
A flange position adjusting device for moving the engagement member by the push and pull mechanism to adjust the position of the other flange,
Are arranged in two orthogonal directions of the periphery of the seismic isolation device,
The fulcrum point of each of the flange position adjustment devices is a horizontal sliding bearing in which the push and pull mechanism of the flange position adjustment device is perpendicular to a direction in which the engagement member is pushed or pulled .
Flange position adjusting device for seismic isolation device characterized in that. The flange position adjusting device of the seismic isolation device according to any one of claims 3 to 5, wherein
The push and pull mechanism is
A slide member provided with the engagement member;
A jack for moving the slide member;
A frame portion supporting the slide member and the jack while in contact with the upper structure and the lower structure;
A flange position adjusting device of a seismic isolation device comprising: The flange position adjusting device of the seismic isolation device according to claim 6, wherein
The jack is disposed on the side of the seismic isolation device with respect to the frame portion;
Flange position adjusting device for seismic isolation device characterized in that.

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