JP4257241B2 - Positioning jig for installing a seismic isolation device and method for installing a seismic isolation device using the positioning jig - Google Patents

Description

  The present invention relates to a positioning jig used for installing a seismic isolation device used for a seismic isolation structure between a lower structure and an upper structure of the structure, and in particular, an upper mounting portion and a lower portion. In a seismic isolation device such as a rolling bearing that can be separated from the mounting part, a positioning jig for installing a seismic isolation device that can be easily positioned up and down, is simple in construction, and can be moved up and down using the jig. It is related with the construction method which can install easily the seismic isolation apparatus isolate | separated into.

  Conventional jigs for installing seismic isolation devices are installed on the base formed below the building across the lower and outer sides of the building. A stand with installation direction display means, and a support means for lifting the seismic isolation device, which is movably arranged on the bottom of the building, and on the base with the seismic isolation device lifted. And a gauge means for installing the gantry at a predetermined position below the building (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 10-331427 (paragraph [0008], FIG. 1)

  By the way, the jig for installing the seismic isolation device having the above structure has a problem in that the construction is complicated, the weight is large, and the size is large, so the carrying is complicated, and the time and cost required for the production are great. There was a problem. In addition, the construction requires a lot of time for installation, requires a plurality of workers, and has a problem that it is difficult to obtain the position accuracy required when installing the seismic isolation device.

  The present invention has been made in view of such problems. The object of the present invention is simple, lightweight and compact, easy to manufacture, achieving cost reduction, easy to implement and short. The object is to provide a positioning jig for installing a seismic isolation device that can be positioned in time. It is another object of the present invention to provide a seismic isolation device installation method that uses the seismic isolation device positioning jig to easily obtain the required accuracy and facilitates positioning.

To achieve the above object, a positioning jig for seismic isolation device installed according to the present invention is formed from a metal plate material, Ru includes a main body portion, and a position reference portion, and a positioning portion. Ie, the positioning jig, a seismic isolation device and the lower mounting portion of the separable fixed to the lower structure such as the upper mounting portion and the foundation is fixed to the upper structure of the building structures, etc., the superstructure A positioning jig used when installing between the body and the lower structure, a main body part, a position reference part based on one outer periphery of the mounting part of the seismic isolation device, and a mounting part A positioning portion for setting the other position of the projection, and as the positioning portion, a projection such as a mark or a pin can be used, and a through-hole for hanging the swing-down swing can be used. This jig is formed from a metal plate, but may be made of resin or cast. In the positioning jig of the present invention, the position reference portion is a bent portion formed by bending the main body portion and abuts on the one outer periphery, and the positioning portion is a through hole or a hole formed in the main body portion. The other center position is set by a downward swing suspended in the through hole .

The positioning jig for installing the seismic isolation device configured as described above is configured such that, for example, the upper mounting portion of the seismic isolation device is fixed to the upper structure, and the position reference portion of the jig is aligned with the outer periphery of the fixed upper mounting portion. The positioning part that sets the other position of the mounting part can determine the center position of the lower mounting part and fix the lower mounting part according to the center position. Can be fixed with the same accuracy. For this reason, the function of a seismic isolation apparatus can be stabilized and the performance of a seismic isolation building can be improved.

In addition, according to this configuration, the upper mounting portion of the seismic isolation device is fixed to the upper structure, and the position reference portion of the jig is aligned with the outer periphery of the fixed upper mounting portion, and is exempted according to the through hole of the jig. The fixed position of the lower mounting part of the seismic device can be set, and the fixed position of the lower mounting part of the seismic isolation device can be easily set by the sharp part of the lower end of the downward swing by hanging and fixing the swinging swing through the through hole. It is possible to accurately match the vertical positional relationship of the seismic isolation device simply by fixing the lower mounting portion in accordance with this fixed position .

Furthermore, as another aspect of the positioning jig for installing the seismic isolation device according to the present invention , it is formed of a metal plate material, and includes a main body portion, a position reference portion, and a positioning portion, and an upper mounting portion and a lower mounting portion. Is a positioning jig that sets the other center position with respect to one of the upper mounting portion and the lower mounting portion of the seismic isolation device with respect to the outer periphery of the seismic isolation device that can be separated, and the position reference portion is The bent portion formed by bending the main body portion is in contact with the one outer periphery, and the positioning portion is formed at an end portion of the main body portion and is in contact with the other outer periphery .

According to this configuration, the position reference part of the jig is pressed against the outer periphery of one of the mounting parts, and the end of the main body part, which is the positioning part, is brought into contact with the other outer periphery of the mounting part. The positional relationship of the mounting portions can be set with a predetermined accuracy.

Furthermore, the installation method of the seismic isolation device according to the present invention, the above-described seismic isolation using positioning jigs for apparatus installation, the lower structure such as the upper mounting portion and the base to be fixed to the upper structure of the building structures, etc. A seismic isolation device, which is separable from the lower mounting part fixed to the body, is a construction method for installing between the lower structure and the upper structure, fixing one of the mounting parts to one of the structures, The position reference part of the positioning jig is aligned with the outer periphery of one fixed mounting part, the fixing position of the other mounting part is set according to the positioning part of the positioning jig, and the other structure is set. It is characterized in that the other of the attachment portions is fixed in accordance with the fixing position.

  According to this configuration, the above-described positioning jig is used, the position reference portion of the jig is brought into contact with one outer periphery of the mounting portion fixed to one of the structures, and the mounting portion is aligned with the positioning portion of the jig. Since the other fixed position can be set and fixed, the vertical position of the seismic isolation device separated vertically can be set easily with a predetermined accuracy, and the installation work of the seismic isolation device can be done in a short time, Installation work can be simplified.

As another aspect of the installation method of the seismic isolation device according to the present invention , the above-described positioning jig for installing the seismic isolation device is used, such as an upper mounting portion and a foundation that are fixed to an upper structure such as a building frame. A construction method for installing a seismic isolation device, which is separable from a lower mounting portion fixed to a lower structure, between the lower structure and the upper structure, and fixing the upper mounting portion to the upper structure Then, the hanging swing is suspended from the through hole, the position reference portion of the positioning jig is aligned with the outer periphery of the fixed upper mounting portion, and the fixing position of the lower mounting portion is set to the lower structure at the center of the lowering swing, The lower mounting portion is fixed in accordance with a fixed position where the lower structure is set. According to this configuration, the lower mounting portion is positioned at the fixed point of the jig, for example, the sharpened portion at the lower end of the downward swing suspended from the through hole that determines the center position, so the lower mounting portion of the seismic isolation device is fixed. The seismic isolation device can be installed by easily setting the fixed position.

According to the positioning jig for installing the seismic isolation device of the present invention, when fixing the separable seismic isolation device to the upper mounting portion and the lower mounting portion, first, one of the mounting portions is fixed, and the fixed mounting is performed. Since the fixing position of the other mounting part is set after setting the fixing position of the other mounting part on the basis of the outer periphery of the part, the upper and lower two mounting parts can be fixed with a predetermined accuracy, and the function of the seismic isolation device Can improve the performance of the base-isolated building. Moreover, the position confirmation after determining the position of the other attachment part with respect to one fixed attachment part can be performed easily.

Further , according to the positioning jig for installing the seismic isolation device of the present invention, the bent portion of the metal plate material is brought into contact with the outer periphery of one fixed mounting portion, and the fixing position of the other mounting portion is fixed by the positioning portion of the jig. Therefore, positioning of the other mounting portion with respect to the fixed one mounting portion can be easily performed. Furthermore , according to the positioning jig for installing the seismic isolation device of the present invention, the fixed position of the other mounting portion can be set with a downward swing with respect to one fixed mounting portion. Since the other mounting portion can be easily fixed in accordance with this, the seismic isolation device can be easily installed.

According to the positioning jig for installing the seismic isolation device of the present invention, the position reference portion of the jig is aligned with the outer periphery of one mounting portion, the positioning portion of the jig is brought into contact with the other outer periphery of the mounting portion, Since the positional relationship between the attachment portions is set, the upper and lower attachment portions can be easily installed with a predetermined accuracy. If the positioning part does not come into contact with the outer periphery, the two mounting parts are moved closer to each other, and when the positioning part comes into contact with the outer periphery, the position reference part and one mounting part move away so that both mounting parts are separated. That's fine. That is, since the upper and lower positional relationship can be confirmed in a state where one attachment portion is fixed and the other attachment portion is temporarily fixed, the other attachment portion can be easily fixed.

According to the installation method of the seismic isolation device according to the present invention, since the fixed position of the other mounting portion can be set on the basis of the fixed one mounting portion, the positional relationship between both mounting portions is set to a predetermined value. Can be matched with accuracy. According to another aspect of the installation method of the seismic isolation device according to the present invention, the fixing position of the other mounting part fixed to the lower structure by swinging downward with reference to one mounting part fixed to the upper structure. Can be set, and the positional relationship between both mounting portions can be maintained with a predetermined accuracy.

  Hereinafter, an embodiment of a positioning jig for installing a seismic isolation device according to the present invention will be described in detail with reference to the drawings. First, a seismic isolation device using the positioning jig of this embodiment and a seismic isolation building using this seismic isolation device will be described. FIG. 1 is a longitudinal sectional view of an example of a seismic isolation device using a positioning jig for installing the seismic isolation device according to the present embodiment, a cross-sectional view taken along line bb, and FIG. 2 is a seismic isolation device of FIG. It is a top view which shows the base isolation frame of the base isolation building which installs.

  1 and 2, a base-isolated building 1 is composed of a building housing 2 that is an upper structure on the upper side and a foundation 3 that is a lower structure on the lower side. It is something to support. And the base isolation frame 4 is fixed to the lower part of the building frame 2, and a plurality of base isolation devices 10, 20, 30 are installed between the base isolation frame and the foundation 3, and the ground G vibration due to an earthquake or the like is It is comprised so that it may insulate, without transmitting directly to the housing 2. The base isolation frame 4 is configured by connecting a plurality of blocks welded with beam materials such as C steel and H steel, and is reinforced with braces 5 and formed with a floor portion 6 for an entrance.

The seismic isolation building 1 of this example has a unit structure in which a plurality of building units having a steel frame ramen structure are arranged as a building frame 2 and stacked up and down as necessary. Six building units (not shown) are arranged side by side on the first floor, and the seismic isolation stand 4 located below the building unit is connected to the beam members so as to support the six building units. A plurality of seismic isolation devices are installed between the base isolation frame 4 and the foundation 3. That is, 12 rolling support type seismic isolation devices 10 installed corresponding to the corners of each building unit and the frame constituting the frame in the center of the building are positioned to attenuate the vibration energy caused by the earthquake. A total of 14 seismic isolation devices 20 having a damper function and wind isolation devices 30 are provided.

  Next, a plurality of seismic isolation devices 10 that are used will be described with reference to FIG. The seismic isolation device 10 is a type of seismic isolation device generally called a rolling bearing, and basically has a lower mounting portion 11 fixed to a lower structure such as a foundation 3, a building frame 2, and a base isolation frame. It is comprised from the upper attaching part 12 fixed to upper structure bodies, such as 4, and rolling bodies 13, such as a steel ball located between both, It is the structure which can be divided | segmented into three parts. With this configuration, when the lower structure such as the foundation 3 vibrates due to an earthquake or the like, the rolling body 13 moves and the vibration of the ground G is not directly transmitted to the upper structure 2.

  The lower mounting portion 11 has a flat bowl-shaped concave portion 11a formed on the upper surface, and is fixed to the grout portion 3a of the foundation 3 with anchor bolts. The upper mounting portion 12 has a shape opposite to that of the lower mounting portion 11 on the lower surface. A flat bowl-shaped recess 12a is formed, and is fixed to the base isolation frame 4 with a fixing bolt. And the rolling body 13 is located in the center position of the upper and lower attachment parts 11 and 12, and becomes a stable position in normal times. In this way, the rolling support type seismic isolation device 10 is installed such that the centers of the lower mounting portion 11 and the upper mounting portion 12 are substantially coincident, and the allowable range of the center position is approximately 20 to 30 mm. Therefore, the seismic isolation device 10 can be installed without using the positioning jig of the present invention because the allowable range of the vertical position is large. Moreover, since the upper and lower members of the seismic isolation device 10 have the same shape and can be connected in advance and opened after the installation, they can be installed without using a jig.

  Next, examples of the seismic isolation devices 20 and 30 that are most suitable for the positioning jig for installing the seismic isolation device according to the present invention will be described with reference to FIGS. The seismic isolation device 20 shown in FIGS. 3 and 4 is installed between the building frame 2 and the foundation 3 together with the above-described rolling support type seismic isolation device 10 and has a damper function that attenuates the vibration of the earthquake during an earthquake. It is a seismic device and is installed between the base isolation frame 4 and the foundation 3 at the bottom of the building housing 2. The building housing 2 includes a small beam 2a, a floor joist 2b, a floor board 2c, and a heat insulating material 2d.

  The seismic isolation device 20 includes a lower damper body portion 21 and an upper tray portion 22, and the tray portion 22 has an inverted bowl-shaped concave portion 23 formed therein, and a piston portion protruding above the damper body portion 21. 24 is elastically contacted with the recess 23 of the tray portion by hydraulic pressure. In the seismic isolation device 20, when the ground vibrates due to an earthquake or the like, the damper main body portion 21 and the saucer portion 22 are relatively displaced, and the piston portion 24 is pushed by the inclined surface of the saucer portion 22, thereby generating hydraulic resistance. It functions to attenuate vibrations. The saucer portion 22 is circular in plan view, and its diameter is set to D1. Since the seismic isolation device 20 is different in shape from the lower damper body 21 and the upper tray 22 as described above and is difficult to install in a connected state, the positioning jig of the present invention can be used accurately and easily. Can be installed.

  The seismic isolation device 20 is mounted by laminating a plurality of maintenance plates P on the upper surface of the grout portion 3 a on the foundation 3 and fixed by a plurality of anchor bolts B. The anchor bolt B and the bolt hole have a relatively large gap, and when the outer diameter of the anchor bolt B is 20 mm, the inner diameter of the bolt hole is about 24 to 25 mm, and the anchor bolt B is inserted temporarily. The base of the damper main body portion 21 is configured to be able to move forward and backward, left and right with a little over 2 mm. The number and thickness of the maintenance plates P are adjusted to function as spacers, and the vertical height of the fixed position is adjusted.

The seismic isolation device 30 having the wind fixing function shown in FIGS. 5 and 6 includes a lower device main body 31 and an upper saucer 32, and the device main body 31 and the saucer 32 can be separated. The saucer part 32 has an inverted bowl-shaped concave part 33 having a steep slope. The saucer portion 32 has a circular shape in plan view, an inverted bowl-shaped concave portion 33 is formed at the center, and the outer periphery is an inclined conical surface 33a. The apparatus main body 31 has a lock shaft 34 that protrudes upward by hydraulic pressure, and the tip of the lock shaft enters the recess 33 of the tray to prevent horizontal movement between the tray 32 and the apparatus main body 31. It is configured to lock. This seismic isolation device 30 is also mounted by laminating a plurality of maintenance plates P on the upper surface of the grout portion 3 a on the foundation 3, and fixed with anchor bolts B.

  With this configuration, for example, the building housing 2 is prevented from moving with respect to the foundation 3 in a strong wind. In the event of an earthquake, a seismic sensor (not shown) built in the device main body 31 detects the earthquake and releases the hydraulic pressure, and the lock shaft 34 descends to disengage the recess 33, and the foundation 3 and the building housing 2 are insulated so that earthquake vibrations are not directly transmitted to the building housing 2. In addition, the diameter of the saucer part 32 of the seismic isolation apparatus 30 is set to the diameter D2 smaller than the diameter D1 of the seismic isolation apparatus 20 which has the said damper function.

  Next, an embodiment of the positioning jig will be described in detail with reference to FIGS. The positioning jig J1 shown in FIG. 7 is a jig for positioning the seismic isolation device 20 having a damper function, and is formed from a metal plate material, for example, a plate material having a thickness of about 1 to 2 mm such as a steel plate or a stainless steel plate. is doing. The positioning jig J1 is formed by bending two sides of a flat and square main body 41 upward at right angles to form bent portions 42 and 42, and notching the intersection of the two bent portions. And the corner part pinched | interposed into the bending part of the main-body part 41 is notched squarely. The length of one side of the main body portion 41 is larger than ½ of the diameter D1 of the saucer portion 22 of the seismic isolation device 20. The bent portion 42 functions as a position reference portion for aligning the positioning jig J1 with the tray portion 22 that is an attachment portion above the seismic isolation device 20. It should be noted that the cutout portion of the bent portion 42 and the cutout portion of the main body portion 41 may be omitted, and the cutout portion of the main body portion may be cut off at an inclined side of 45 degrees.

  A through hole 43 having a diameter of about 1 mm is formed as a positioning portion at the intersection of the two sides of the main body 41 on the side where the two bent portions 42 are not present. The position of this through-hole corresponds to the center position of the saucer portion 22 when it comes into contact with the bent portion 42 on the outer periphery of the saucer portion 22 of the seismic isolation device 20, and the diameter of the saucer portion 22 of the seismic isolation device 20. When D1 is D1, the distance between the through hole 43 and the bent portion 42 is set to D1 / 2 in two directions perpendicular to each other. And this through-hole 43 hangs down swing S in the case of construction, and fixes it.

  A positioning jig J2 shown in FIG. 8 is a jig for positioning the seismic isolation device 30 having a wind fixing function, and basically has the same configuration as that of the positioning jig J1. A bent portion 42A is formed, and a positioning through hole 43A is formed at a corner portion where two sides having no bent portion intersect. And unlike the positioning jig J1 of the damper seismic isolation device 20 having a large diameter D1, the saucer portion 22 has a small size in accordance with the saucer portion of the wind fixing seismic isolation device 30 having a small diameter D2. Is formed. That is, the distance between the through hole 43A and the bent portion 42A is set to be D2 / 2 in two directions perpendicular to each other. As shown in FIG. 9, two through holes 43B and 43C are drilled in a large positioning jig J3, the distance between the outer through hole 43B and the bent portion 42B is D1 / 2, and the inner through hole is formed. The distance between 43C and the bent portion 42B may be set to D2 / 2 so that it can be shared.

Since the positioning jigs J1 to J3 can form a metal plate by sheet metal processing, the configuration is extremely simple, small and light, and after forming the outer shape, holes for the through holes 43 and 43A to 43C are formed, and the bent portion 42 is formed. , 42A, 42B, it is easy to manufacture just by bending two sides, and it can be manufactured at low cost. Further, when positioning the damper main body 21 and the apparatus main body 31 which are the lower members with reference to the tray parts 22 and 32 which are the upper members of the seismic isolation apparatuses 20 and 30, Although it is necessary to operate between the upper structure and the jig, the jig is small and light, so it has excellent operability.

  Another embodiment of the positioning jig of the present invention will be described in detail with reference to FIGS. 10 and 11 are a perspective view, a side view, and a plan view, respectively, of another embodiment of the seismic isolation device positioning jig according to the present invention. In addition, the positioning jigs J4 and J5 of this embodiment set and set the fixing positions of the upper mounting portion and the lower mounting portion of the seismic isolation device that are separable up and down with respect to the above-described embodiment. This jig is suitable for confirming that the fixing positions are matched. That is, after positioning the lower damper body 21 and the apparatus body 31 with respect to the upper tray parts 22 and 32 using the positioning jigs J1 to J3, the damper body 21 and the apparatus body 31 are moved. Suitable for checking the position when fixing. Other substantially equivalent configurations are denoted by the same reference numerals, and detailed description thereof is omitted.

  10 and 11, the positioning jigs J4 and J5 of this embodiment are formed of a metal plate material having a thickness of about 1 to 1.5 mm. The positioning jig J4 is a bent portion 52 in which one end portion of the main body portion 51 is bent at a right angle, and a V-shaped cut 53 is formed at the other end portion. The opening angle of the V-shaped cut 53 is set to 90 degrees, but may be larger or smaller than 90 degrees. This jig J4 has an inclined side of the notch 53 that contacts the outer periphery of the damper main body 21 that is the other member when the bent portion 52 is pressed against the outer periphery of the saucer portion 22 that is one member of the seismic isolation device 20. The length of the main body 51 is set so as to be in contact with each other, and constitutes a positioning portion.

  The positioning jig J5 is a bent portion 52A in which one end of the main body 51A is bent at a right angle, and a V-shaped cut 53A is formed at the other end. This jig J5 has an outer periphery of the device main body 31 in which the inclined side of the cut 53A is the other member when the bent portion 52A is brought into contact with the outer periphery of the tray portion 32 which is one member of the seismic isolation device 30. The length of the main body 51 </ b> A is set so as to come into contact with the main body 51 </ b> A. The opening angle of the cut 53A is also set to 90 degrees. However, the cuts 53 and 53A are not limited to the 90-degree angle, and may be any angle, such as a semicircular shape or a trapezoidal shape matching the shape of the other party. It may be linear.

  Next, a method for installing the seismic isolation device using the positioning jig having the above-described configuration will be described. First, the seismic isolation devices 10, 20, and 30 are installed at predetermined locations on the foundation 3, and the seismic isolation rack 4 is installed on the seismic isolation device. Installation of the seismic isolation rack 4 is performed by dividing into blocks. That is, a block installed on the seismic isolation device is temporarily placed and temporarily secured to the upper mounting portion 12 and the tray portions 22 and 32 of the seismic isolation device with bolts. After all the blocks and the upper member of the seismic isolation device are temporarily fixed, the blocks are connected to form the seismic isolation rack 4. Thereafter, the seismic isolation device and the seismic isolation rack 4 are permanently fixed. At this time, when the seismic isolation device 20 having the damper function and the seismic isolation device 30 having the wind fixing function are fixed, the positioning treatment is performed. If tools J1 to J5 are used, they can be fixed with high precision.

  As described above, the seismic isolation devices 10, 20, and 30 have a shape that can be separated vertically, and the rolling support type seismic isolation device 10 may have a relatively rough vertical relationship. For example, the seismic isolation device 10 has a damper function. The seismic device 20 is required to be fixed in a state where the centers of the lower damper body 21 and the upper saucer portion 22 coincide with each other with a small allowable range (for example, about ± 5 mm), and has a wind fixing function. 30 is preferably fixed in a state in which the lower apparatus main body 31 and the upper tray part 32 coincide with each other in a smaller allowable range (for example, about ± 2 mm).

As shown in FIG. 12, the installation of the seismic isolation device 20 first fixes the upper tray portion 22. That is, the saucer portion 22 is fixed to the lower surface of the base isolation frame 4 of the building housing 2 so that the mortar surface faces downward, and the maintenance plate P is laminated to a predetermined height H (FIG. 12a). . Thereafter, the lower damper body 21 is fixed in accordance with the center of the fixed saucer 22. That is, the swinging swing S is suspended through the through-hole 43 of the positioning jig J1 (FIGS. 12B and 12C), and the bent portions 42 and 42 of the positioning jig J1 are brought into contact with the outer peripheral surface of the fixed tray portion 22. Align and hold in place.

  Then, the maintenance plate P is moved in accordance with the sharpened portion at the lower end of the downward swing S, and the center line CL of the maintenance plate P and the sharpened portion of the downward swing S are adjusted, for example, within a range of ± 5 mm. A mark M is attached to the side surfaces of the maintenance plate P and the grout portion 3a, and the damper main body portion 21 is installed in accordance with the mark (FIG. 12d). If it does not fall within the above range, the positional relationship between the seismic isolation gantry 4 and the foundation 3 is shifted, or the fixing bolt of the tray 22 is loosened and adjusted so that it falls within the above range.

  The damper body 21 is placed at an appropriate position on the maintenance plate P on the upper surface of the foundation 3, and the anchor bolt hole of the damper body 21 and the anchor nut hole of the foundation 3 are roughly positioned in a state where the damper body 21 can be moved horizontally. And temporarily fix with the anchor bolt B. The damper main body 21 is moved horizontally on the maintenance plate P, and the mark M and the damper main body 21 are positioned with rough accuracy. And the positional relationship of the saucer part 22 and the damper main-body part 21 is confirmed with another positioning jig J4. That is, as shown in FIGS. 10b and 10c, the bent portion 52 of the positioning jig J4 is pressed against the outer periphery of the saucer portion 22, and it is confirmed that the notch 53 at the tip abuts on the outer periphery of the damper main body portion 21. To fix the damper main body 21 on the foundation 3.

  The operation of confirming the position of the damper main body 21 by the positioning jig J4 is performed so that the damper main body 21 is moved toward the positioning jig J4 when the notch 53 is not in contact with the damper main body 21 and a gap is opened. When the notch 53 hits the damper main body 21 and the bent portion 52 is separated from the tray portion 22, the damper main body 21 is moved away from the positioning jig J4. This confirmation work needs to be performed from at least two directions of the X-axis direction and the Y-axis direction, but is confirmed by applying the jig J4 from opposite sides of the damper main body portion 21 along the X-axis direction. It is preferable to check from four directions by applying the jig J4 from opposite sides of the damper main body 21 along the axial direction.

  With the above operation, the installation of the seismic isolation device 20 having the damper function is completed, and then the installation of the seismic isolation device 30 having the wind fixing function is performed in the same manner. In addition, whichever of the order of installation of the seismic isolation devices 20 and 30 may be performed first. First, the tray part 32 is fixed to the seismic isolation frame 4 which is an upper structure with a bolt. Then, as shown in FIG. 13 a, the swing swing S is suspended from the through hole 43 </ b> A of the positioning jig J <b> 2, and the bent portion 42 </ b> A is pressed against the outer periphery of the saucer portion 32. Thereafter, as shown in FIG. 13 b, the sharpened portion of the downward swing S is aligned with the center of the maintenance plate P. The maintenance plate P is moved so that the positioning accuracy at this time falls within a range of ± 2 mm.

  Then, marks (not shown) are attached to the side surfaces of the maintenance plate P and the grout portion 3a, and the device body 31 of the seismic isolation device 30 is placed at an appropriate position on the maintenance plate P on the upper surface of the foundation 3 with reference to this mark. The anchor bolt hole of the apparatus main body 31 and the anchor nut hole of the foundation 3 are aligned with rough positional accuracy in a state where it can be placed and moved in the horizontal direction, and temporarily fixed with the anchor bolt B. Thereafter, with another positioning jig J5, as shown in FIGS. 11b and 11c, the positional relationship between the tray part 32 and the apparatus main body part 31 is confirmed in the X-axis direction and the Y-axis direction, and the anchor bolt B is finally tightened. Then, the apparatus main body 31 is fixed on the foundation 3. This operation completes the installation of the seismic isolation device 30.

As in the positioning jig J4, the position of the tray portion 32 and the device main body portion 31 is confirmed by applying the bent portion 52A to the outer periphery of the tray portion 32 as shown in FIGS. It confirms contact | abutting on the outer periphery of the main-body part 31. FIG. When the notch 53A is separated from the outer periphery of the apparatus main body 31, the apparatus main body 31 is moved so as to approach, and the notch 53A is too close to the outer periphery of the apparatus main body 31, so that the bent portion 52A and the saucer portion 32 Is left, jig J5
The apparatus main body 31 is moved in a direction away from This operation is performed from two directions orthogonal to the lowest direction, preferably from four directions, and the positions of the apparatus main body 31 and the tray part 32 are confirmed.

  Thus, with respect to the tray portions 22 and 32 that are the upper mounting portions that are fixed using the positioning jigs J1 and J2, the fixed positions of the damper main body portion 21 and the device main body portion 31 that are the lower mounting portions are roughly fixed. Is set with the mark M and the fixing position is confirmed using the positioning jigs J4 and J5, and then the main fixing is performed. Therefore, the center position of both mounting portions can be easily fixed with a predetermined accuracy. Can be easily and accurately performed. Further, the positioning jig has a simple configuration and can be easily manufactured, and can also be easily manufactured at a construction site.

  In this embodiment, the positioning jigs J1 and J2 are used to position the upper receiving trays 22 and 32, the lower damper main body 21 and the apparatus main body 31 and then temporarily fix them with the anchor bolt B. The bending jigs 52 and 52A are pressed against the outer peripheries of the upper tray parts 22 and 32 with the positioning jigs J4 and J5, and the notches 53 and 53A at the other end abut against the outer peripheries of the damper main body 21 and the apparatus main body 31. After confirming that the upper and lower mounting parts are in a predetermined positional relationship, the anchor bolt B is tightened to permanently fix the damper main body 21 and the apparatus main body 31. Thus, the positioning jigs J4 and J5 are suitable for re-checking and fixing the positions set in advance by the positioning jigs J1 and J2, and can be a subsequent process of the construction procedure. preferable. In addition, only the positioning jigs J1 and J2 may be used, and the upper and lower mounting portions of the seismic isolation device may be installed within a predetermined range, and the seismic isolation device may be installed within the predetermined range using only the positioning jigs J4 and J5. Of course, it may be positioned and installed.

  Still another embodiment of the positioning jig of the present invention will be described in detail with reference to FIG. FIG. 14 shows still another embodiment of the positioning jig for installing the seismic isolation device according to the present invention, (a) is a perspective view showing the relationship with the upper mounting portion, and (b) is yet another implementation. It is a perspective view of a form. The positioning jig J6 shown in FIG. 14a is formed from a rectangular metal plate, and the length of the long side of the main body portion 60 is formed longer than the diameter of the tray portion 22, and linearly corresponding to the diameter of the tray portion 22 The marks 61, 61 are attached. Further, linear marks 62 and 62 are attached corresponding to the diameter of the small-diameter tray portion 32. A through-hole 63 for suspending the swing swing S is formed at the center. The marks 61 and 62 constitute a position reference part.

  The positioning jig J6 of this embodiment suspends the swinging swing S from the through-hole 63 and stops it with, for example, tape. When the seismic isolation device 20 is installed, the outer periphery of the tray portion 22 is aligned with the mark 61, The maintenance plate is moved so that the sharpened portion and the center of the maintenance plate (not shown) are aligned. When the seismic isolation device 30 is installed, the outer periphery of the tray portion 32 and the mark 62 are aligned, and the sharpened portion of the downward swing S and the center of the maintenance plate are aligned. And the damper main-body part 21 and the apparatus main-body part 31 which are lower attachment parts are fixed on the positioned maintenance plate. In this fixing, the positioning can be confirmed and fixed by using the positioning jigs J4 and J5 as in the above-described operation.

  In the positioning jig J7 shown in FIG. 14B, a plurality of marks 71 are formed as position reference portions on the upper surface of the main body portion 70 of a rectangular metal plate material, and an expandable and contractible central shaft 72 projects downward in the center. It is fixed. A positioning cone 73 is fixed to the lower end of the central shaft 72. When positioning the seismic isolation device using the positioning jig J7, the mark 71 corresponding to the outer periphery of the upper mounting portion such as the saucer portion is aligned, the center shaft 72 is appropriately extended, and the tip of the cone 73 is positioned. The center position of the lower mounting portion such as the main body portion can be set, and the lower mounting portion of the seismic isolation device can be easily fixed within a predetermined range according to the center position.

Although one embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention described in the claims. Design changes can be made. For example, although the example in which the outer shape of the upper mounting portion of the seismic isolation device is circular has been shown, the present invention is not limited thereto, and may be a rectangular shape such as a square or a polygonal shape such as a hexagon.

  Moreover, although the example which formed the positioning jig from the metal plate material was shown, you may form a corner part as a position reference part with a metal casting, and may form a through-hole as a positioning part. Further, the position reference portion and the positioning portion may be formed of an injection molded product of synthetic resin, or may be formed of wood. And in the said embodiment, after fixing an upper member, the example which positions a lower member on the basis of the fixed member was shown, but after fixing a lower member conversely, It may be fixed by positioning.

  Although an example of a rolling support type was shown as a seismic isolation device, a sliding support type seismic isolation device may be used. Although the example of the through hole showing the center position for the downward swing is shown as the positioning portion, the center shaft may be protruded and the position of the other attachment portion may be set at the tip. Further, a triangular plate may be protruded from the main body of the jig, and the center position of the other mounting portion may be set at the apex thereof. Furthermore, a shaft that stands upright by swinging from the main body portion may be fixed as the positioning portion, and the center position of the other mounting portion may be set by standing this shaft vertically.

(A) is a longitudinal cross-sectional view of an example of the seismic isolation apparatus which uses the positioning jig for the seismic isolation apparatus installation based on this invention, (b) is the bb sectional view taken on the line of (a). The top view which shows a base isolation frame as an upper structure of the building which installs the base isolation apparatus of FIG. Sectional drawing of the other example of the seismic isolation apparatus optimal for use of the positioning jig which concerns on this invention. The top view which abbreviate | omitted the saucer part above the seismic isolation apparatus of FIG. Sectional drawing of the further another example of the seismic isolation apparatus optimal for use of the positioning jig which concerns on this invention. The top view which abbreviate | omitted the saucer part above the seismic isolation apparatus of FIG. BRIEF DESCRIPTION OF THE DRAWINGS One Embodiment of the positioning jig for seismic isolation apparatus installation which concerns on this invention is shown, (a) is a perspective view, (b) is the side view which fractured | ruptured one part, (c) is a top view. FIGS. 8A and 8B show a modified example of the positioning jig of FIG. 7, in which FIG. 7A is a perspective view, and FIG. The top view of other embodiment of the positioning jig for the seismic isolation apparatus which concerns on this invention. The further embodiment of the positioning jig for seismic isolation apparatus installation concerning this invention is shown, (a) is a perspective view, (b) is a side view which shows positioning operation, (c) is a saucer part of (b) FIG. The further embodiment of the positioning jig for seismic isolation apparatus installation concerning this invention is shown, (a) is a perspective view, (b) is a side view which shows positioning operation, (c) is a saucer part of (b) FIG. (A), (b), (d) is operation | movement explanatory drawing of the positioning jig of FIG. 7, (c) is cc sectional view taken on the line of (b). (A), (b) is operation | movement explanatory drawing of the positioning jig of FIG. (A), (b) is a perspective view of further another embodiment of a positioning jig, respectively.

Explanation of symbols

1: base-isolated building, 2: building frame (upper structure), 3: foundation (lower structure), 4: base isolation frame (upper structure), 10: base isolation device, 11: lower mounting part, 12: Upper mounting part, 20: damper device (seismic isolation device), 21: damper main body part (lower mounting part), 22: saucer part (upper mounting part), 30: wind fixing device (seismic isolation device), 31: device main body Part (lower mounting part), 32: saucer part (upper mounting part), J1 to J7: positioning jig for installing the seismic isolation device, 41, 41A: main body part, 42, 42A: bent part (position reference part), 43, 43A, 43B, 43C: Through hole (positioning part), 51, 51A: Main body part, 52, 52A: Bending part (position reference part), 53, 53A: V-shaped notch (positioning part), 60, 70: body part, 61, 62, 71: alignment mark (position reference part), 63: penetration Hole (positioning part), 72: center axis, 73: cone (positioning unit), S: plumb (positioning portion), P: maintenance plate, M: Mark, CL: center line

Claims (4)

An upper mounting portion of the seismic isolation device , which is formed of a metal plate, includes a main body portion, a position reference portion, and a positioning portion, and is based on the outer periphery of the seismic isolation device in which the upper mounting portion and the lower mounting portion are separable. It is a positioning jig that sets the center position of the other side with respect to one side of the lower mounting part .
The position reference portion is a bent portion formed by bending the main body portion, and is in contact with the one outer periphery,
A positioning jig for installing a seismic isolation device, wherein the positioning portion sets the other center position by a through-hole drilled in the main body portion or a downward swing suspended in the through-hole . An upper mounting portion of the seismic isolation device, which is formed of a metal plate, includes a main body portion, a position reference portion, and a positioning portion, and is based on the outer periphery of the seismic isolation device in which the upper mounting portion and the lower mounting portion are separable. It is a positioning jig that sets the center position of the other side with respect to one side of the lower mounting part.
The position reference portion is a bent portion formed by bending the main body portion, and is in contact with the one outer periphery,
A positioning jig for installing a seismic isolation device , wherein the positioning portion is formed at an end of the main body and abuts against the other outer periphery . An upper mounting portion fixed to an upper structure such as a building frame and a lower mounting portion fixed to a lower structure such as a foundation using the positioning jig for installing the seismic isolation device according to claim 1 or 2 Is a construction method of installing a separable seismic isolation device between the lower structure and the upper structure,
One of the attachment portions is fixed to one of the structures, the position reference portion of the positioning jig is aligned with the fixed outer periphery of the one attachment portion, and the positioning jig is aligned with the positioning portion of the positioning jig. An installation method for a seismic isolation device, wherein a fixing position of the other mounting portion is set to the other of the structure, and the other of the mounting portions is fixed in accordance with a fixed position of the other structure. . Using the positioning jig for installing the seismic isolation device according to claim 1 , the upper mounting portion fixed to the upper structure such as a building frame is separated from the lower mounting portion fixed to the lower structure such as the foundation. A construction method for installing a seismic isolation device that is possible between the lower structure and the upper structure,
The upper mounting portion is fixed to the upper structure, the swinging swing is suspended from the through hole, the position reference portion of the positioning jig is aligned with the outer periphery of the fixed upper mounting portion, and the center of the lower swinging motion And setting the fixing position of the lower mounting part to the lower structure, and fixing the lower mounting part in accordance with the fixed position set of the lower structure.

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