JP4141011B2 - How to install a pendulum type seismic isolation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for installing a pendulum type seismic isolation device that can be applied to a building or art display case or a seismic isolation floor for a computer.
[0002]
[Prior art]
As an example of a conventional pendulum type seismic isolation device, the technology (first known example) disclosed in Japanese Patent Publication No. 5-62179 is connected to a support base 50 provided on the ground, as shown in FIG. A curved housing 52 is held by a tray housing 51 made of concrete, and a slider housing 54 that slidably holds a joint slider 53 serving as a load transmitting body that is slidable on the tray 52 is a support column 55. Further, the support column 55 is connected to the structure connection plate 56, and the structure connection plate 56 is fixed to the support structure 58 by bolts 57.
[0003]
As a second known example, the technique shown in FIG. 37 is a technique in which a lower iron 61 formed by machining a soft steel plate having a thickness of 30 mm or more and machining a curved surface 61a is formed on a support base 60 provided on the ground. The lower sliding plate 62, which is mounted and fixed by bolting, is slidable on the curved surface 61a and becomes a movable load transmission body, is bonded to the upper sliding plate 63, which is also the load transmission body, and the upper sliding plate 63 A columnar member 64 that slidably holds is connected to a flange member 65 to form an upper collar, and the flange member 65 is fixed to the support structure 66 by bolting.
[0004]
Further, the technique (third known example) disclosed in Japanese Utility Model Laid-Open No. 5-32505 has a lower collar 73 in which a spherical portion 72a is formed on a lower device 71 with a cylindrical body 72 as a base, as shown in FIG. Anchor bolts 74 embedded in the lower device 71 are inserted into anchor bolt insertion holes 73a provided at the four corners of the lower side of the lower side, and a nut 75 is fastened to the anchor bolt 74 so that the lower rod 73 is placed on the lower device 71. Fixed. In addition, an upper rod 78 having a spherical portion 77a having the same radius of curvature as the spherical portion 72a with a cylindrical body 77 as a base is formed in the lower portion of the upper device 76 through bolt insertion holes provided on the upper side thereof. The slider 79 is fixed to the upper device 76 by fastening means, and a slider 79 serving as a load transmitting member is slidably contacted between the spherical surface portion 72a of the lower rod 73 and the spherical surface portion 77a of the upper rod 78.
[0005]
However, in each of the above-described known examples, the lower iron 61 of the second known example shown in FIG. 37 and the lower iron 73 and the upper iron 78 of the third known example shown in FIG. Machining thick soft steel plates and the like to cut and form the curved surfaces 61a and the spherical portions 72a and 77a, which increases the processing cost and processing costs, and is expensive because steel plates are used as raw materials. There was a problem that the material cost increased.
[0006]
In addition, the weight of the lower rods 61 and 73 and the upper rod 78 increases. For example, a 1m square, 30 mm thick thick steel plate has a weight of about 236 kg, so it must be carried by a hoisting machine, It was difficult.
[0007]
As a technique capable of solving the above problem, a technique (fourth known example) disclosed in Japanese Patent Laid-Open No. 10-37519 has been proposed, and the configuration thereof is a rubber layer attached to the upper device as shown in FIG. Under the top plate 82 having 81, there is a grout material 83, a saucer iron plate 84 formed in a conical shape, and a saucer 86 having a reinforcing material 85 in the center is attached to the lower device via a ball 87 serving as a load transmission body. A base plate 89 fixed by an L-shaped anchor bolt 88 and a support body 91 having a ball bearing retainer 90 are supported.
[0008]
In the above-described configuration, the grout material 83 is filled and solidified on the upper part of the saucer iron plate 84 formed into a conical shape with which the ball 87 abuts to form the upper saucer 86, whereby the thick stainless steel plate or the thick soft steel plate as described above. It is not necessary to machine, etc., and it is possible to reduce the processing cost and material cost and reduce the weight of each member to facilitate the construction work.
[0009]
Therefore, the present inventor has developed a technique in which not only the upper load receiving portion fixed to the upper structure but also the lower load receiving portion fixed to the lower structure is formed by integrating the metal plate and the grout solidified layer. Currently, patent applications are being filed in Japanese Patent Application No. 10-111707 and Japanese Patent Application No. 10-111708.
[0010]
[Problems to be solved by the invention]
However, the technique proposed by the present inventor is not completely free of problems. When the peripheral portion of the metal plate constituting the lower load receiving portion is supported and fixed by a plurality of fixing members, a plurality of fixings are performed. Since the height level and horizontal level of the entire metal plate were adjusted by individually adjusting the fixed height position of the member, it took time to adjust the height level and horizontal level of the metal plate. There is a problem in that the flat portion where the peripheral portion of the metal plate is fixed by the fixing member due to its own weight is bent and an error occurs in the height level and the horizontal level. Further, there is a problem that the work on the upper part of the metal plate cannot be performed until the grout material filled in the gap between the metal plate and the lower structure is solidified, resulting in a longer construction period.
[0011]
Also, in the first known example described above, when the curved dish 52 is held by the dish housing 51 made of concrete, the concrete is cast in a state where the curved dish 52 is supported by some support means. It takes time to adjust the height level and horizontal level of the curved dish 52 to form 51, and work on the upper part of the curved dish 52 cannot be performed until the concrete of the dish housing 51 is solidified. There was a problem of becoming longer.
[0012]
The present invention solves the above-mentioned problems, and an object of the present invention is to form a curved receiving surface of at least a lower load receiving portion of a pendulum type seismic isolation device by integrating a metal plate and a grout solidified layer. Installation of a pendulum type seismic isolation device that can easily and reliably adjust the height level and horizontal level of the metal plate that constitutes the lower load receiving part, and shorten the work period, while reducing processing costs and material costs It is intended to provide a method.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, a pendulum type seismic isolation device installation method according to the present invention includes a curved receiving surface, an upper load receiving portion fixed to the upper structure, and a curved receiving surface. And a pendulum type seismic isolation device having a lower load receiving portion fixed to the lower structure and a load transmitting body interposed between both receiving surfaces of the upper load receiving portion and the lower load receiving portion. In the method of installing between both structures, one height adjustment support member and a plurality of fixing members surrounding it are erected on the lower structure, and the lower load receiving portion In the middle to form Curved receiving surface Yes A metal plate to be prepared, the lower surface of the central portion of the metal plate is supported by the height adjustment support member, the height level thereof is adjusted, and the horizontal level is further adjusted by the plurality of fixing members. Fix the periphery of the metal plate, Using a grout material filling pipe embedded in the lower structure in advance so that the filling port is located near the center of the metal plate and exposed from the upper surface of the lower structure. A lower load receiving portion in which the metal plate and the grout solidified layer are integrated is formed by filling and solidifying a non-shrinkable grout material in a gap between the lower structure and the metal plate.
[0014]
According to the above installation method, after the height level and the horizontal level of the metal plate are adjusted in a state in which the lower surface of the substantially central portion of the metal plate is supported by one height adjustment support member erected on the lower structure. The height of the metal plate constituting the lower load receiving portion or the horizontal level is fixed by fixing the peripheral portion of the metal plate to a plurality of fixing members surrounding one height adjusting support member and standing on the lower structure. Level adjustment work can be done easily and reliably. In particular, workability is good because the height level of the metal plate can be adjusted at one location of the height adjustment support member.
[0015]
In addition, since the height adjustment support member receives the load of the metal plate by supporting the lower surface of the substantially central portion of the metal plate by the height adjustment support member, the peripheral portion of the metal plate fixed by the fixing member is flat. The portion does not bend, and no error occurs in the height level or horizontal level of the metal plate.
[0016]
Furthermore, before the grout material filled in the gap between the lower structure and the metal plate is solidified, the load transmitting body, the upper load receiving portion, and the upper structure can be placed on the metal plate for work. Therefore, it is not necessary to wait for the solidification time of the grout material, and the construction period can be shortened.
[0017]
Also, a lightweight and easy-to-handle metal plate for the lower load receiving portion, and a grout solidified layer integrated with the metal plate by filling and solidifying a non-shrinkable grout material in the gap between the metal plate and the lower structure The workability is good due to the formation.
[0018]
Further, a grout material filling pipe is embedded in the lower structure in advance, and a non-shrinkable grout material is filled into the gap between the lower structure and the metal plate from the outside through the grout material filling pipe. By By setting the filling port of the grout material filling tube at the central portion where the cross section of the gap between the lower structure and the metal plate is narrowed, filling of the grout material into the narrow central portion can be ensured.
[0019]
Further, according to the installation method of the pendulum type seismic isolation device, the receiving surface of the upper load receiving portion has a smaller radius of curvature than the receiving surface of the lower load receiving portion, and the load transmitting body is the upper load receiving portion. An upper surface and a lower surface of a radius of curvature that match the receiving surface of the lower portion and the receiving surface of the lower load receiving portion, respectively, and the load transmitting body moves integrally with the upper load receiving portion to When it is possible to slide on the receiving surface of the part, the receiving surface of the upper load receiving portion and the receiving surface of the lower load receiving portion have the same radius of curvature, and are interposed between the receiving surfaces This is suitable for the installation method of the pendulum type seismic isolation device when the load transmitting body is allowed to slide without substantially rotating between the two receiving surfaces.
[0020]
Further, a grout material filling hole and a grout material confirmation hole are provided in the metal plate forming the curved receiving surface in the lower load receiving portion, and the grout material is filled from the grout material filling hole, and the filled state is grouted. When confirming with the material confirmation hole, it can be easily filled by pouring a non-shrinkable grout material from the upper side of the metal plate of the lower load receiving portion into the gap between the lower structure and the metal plate, Furthermore, by visually confirming that the grout material overflows from the grout material confirmation hole, it is possible to reliably fill the grout material with no gap between the lower structure and the metal plate, and the metal plate and the grout solidified layer are strong and A lower load receiving portion that is reliably integrated can be formed.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the installation method of the pendulum type seismic isolation device according to the present invention will be specifically described with reference to the drawings. 1 and 2 are cross-sectional explanatory views showing the configuration of the first embodiment of the pendulum type seismic isolation device according to the present invention, FIG. 3 is a plan view showing the configuration of the lower load receiving portion of the first embodiment, and FIG. FIG. 5 is a cross-sectional explanatory view showing a state in which the load transmitting body slides on the receiving surface of the lower load receiving portion in the first embodiment, and FIG. 5 shows the load transmitting body on the receiving surface of the lower load receiving portion in the first embodiment. FIG. 6 to FIG. 13 are cross-sectional explanatory views showing the installation method of the lower load receiving portion of the first embodiment, FIG. 14 (a) to (c), FIG. 15 and FIG. FIGS. 17 to 21 are views showing other configurations of the height adjusting support member, and FIGS. 17 to 21 fill the gap between the lower structure and the metal plate through the grout material filling pipe embedded in the lower structure of the first embodiment. FIG. 22 is a sectional view showing the configuration of the second embodiment of the pendulum type seismic isolation device according to the present invention. FIG. 23 is an explanatory sectional view showing the configuration of the third embodiment of the pendulum type seismic isolation device according to the present invention, FIG. 24 is a plan view showing the configuration of the upper load receiving portion of the third embodiment, and FIG. FIG. 26 to FIG. 30 are cross-sectional explanatory views showing the installation method of the upper load receiving portion of the third embodiment, and FIG. 31 is a pendulum type according to the present invention. Cross-sectional explanatory view showing the configuration of the fourth embodiment of the seismic isolation device, FIG. 32 is a cross-sectional explanatory view showing how the load transmitting body slides on the receiving surfaces of the upper and lower load receiving portions in the fourth embodiment, FIG. 33 is a plan view showing the configuration of the upper load receiving portion of the fourth embodiment, FIG. 34 is a plan view showing the configuration of the lower load receiving portion of the fourth embodiment, and FIG. 35 is a pendulum type seismic isolation device according to the present invention. It is a section explanatory view showing the composition of a 5th embodiment.
[0022]
The installation method of the pendulum type seismic isolation device according to the present invention relates to the installation method of the pendulum type seismic isolation device that can be suitably applied to buildings such as houses and offices, art display cases or seismic isolation floors for computers, In the following description, an example when applied to a building such as a house or an office will be described.
[0023]
First, a first embodiment of the installation method of the pendulum type seismic isolation device according to the present invention will be described with reference to FIGS. In the figure, reference numeral 1 denotes a lower structure formed by placing concrete on the ground or the like, and the lower structure 1 is a length in which a bolt 4 is screwed onto an upper portion constituting one height adjustment support member. A nut 2 and anchor bolts 3 serving as a plurality of fixing members surrounding the nut 2 are erected and attached.
[0024]
When the long nut 2 and the anchor bolt 3 are embedded in the lower structure 1 and are erected, a hole is formed in the lower structure 1 and then the long nut 2 and the anchor bolt 3 are inserted into the hole to stand. Just set up.
[0025]
The long nut 2 has a through thread groove having a length corresponding to the adjustment amount of the height level of the metal plate 5 of the lower load receiving portion A. A bolt 4 having a length corresponding to an adjustment allowance for the height level of the metal plate 5 of the load receiving portion A is attached to be freely screwed.
[0026]
Then, the height level of the curved receiving surface 5a of the metal plate 5 of the lower load receiving portion A placed on the upper portion of the bolt 4 is adjusted by adjusting the screwing height position of the bolt 4. It has become.
[0027]
On the other hand, as shown in FIG. 6, a nut 6 is screwed at a predetermined position in the height direction of the anchor bolt 3, and a washer 7 inserted through the anchor bolt 3 is attached to the upper surface of the nut 6. Note that the nut 6 and the washer 7 may be constituted by a nut with a seat formed integrally.
[0028]
As a method for installing the lower load receiving portion A, first, as shown in FIG. 6, a metal plate in which a curved receiving surface 5a having a predetermined curvature that is circular in a plan view and is convex downward is formed in the center portion. The height level of the bolt 4 is adjusted by screwing and rotating the bolt 4 for placing and supporting the lower surface of the substantially central portion 5 in a predetermined direction with respect to the long nut 2.
[0029]
Specifically, as shown in FIG. 6, the scale 4 is applied to the upper surface of the bolt 4, and the bolt 4 is screwed and rotated in a predetermined direction with respect to the long nut 2 while measuring with a level surveying machine 9 from the periphery thereof. The height level of the bolt 4 is adjusted so that the metal plate 5 placed on the upper surface of the plate 4 has a preset height level.
[0030]
Anchor bolt insertion holes 5b are formed at four corners outside the curved receiving surface 5a of the metal plate 5, and four anchor bolt insertion holes 5b of the metal plate 5 are provided as shown in FIGS. The metal plate 5 is supported by being inserted into the anchor bolt 3 and placing the lower surface of the substantially central portion of the metal plate 5 on the bolt 4.
[0031]
Then, as shown in FIG. 8, the level 10 is placed on the flat portion around the curved receiving surface 5a of the metal plate 5, and the horizontal level of the metal plate 5 supported by the bolt 4 is adjusted. 6 is screwed and raised with respect to the anchor bolt 3, and the height of the nut 6 is adjusted to a position where the washer 7 contacts the lower surface of the metal plate 5.
[0032]
Then, the washer 7 is fitted into the anchor bolt 3 from the upper side of the metal plate 5 and the nut 6 is screwed and fastened to the anchor bolt 3 to fix the metal plate 5 to the anchor bolt 3.
[0033]
The metal plate 5 can be made of, for example, a thin soft steel plate having a thickness of about 2.3 mm or less, and the curved receiving surface 5a can be easily formed by bending the metal plate 5. I can do it. Therefore, mass production can be performed by press working, and if it is small production, the metal plate 5 can be bent by spatula drawing or the like to easily form the curved receiving surface 5a.
[0034]
Further, if the metal plate 5 is a thin mild steel plate, the material cost is low. For example, a 1 m square, 2.3 mm thick thin mild steel plate has a weight of about 18 kg. It can be reduced in weight, can be easily brought into the site by an operator without relying on a hoisting machine, and construction work can also be facilitated.
[0035]
The metal plate 5 erected from the lower structure 1 is substantially supported by the central bolt 4 serving as one height adjustment support member. Even if the metal plate 5 is a thin plate, the curved receiving surface 5a portion has a bending rigidity larger than that of the flat portion due to its shape, and the weight of the metal plate 5 is maintained even when supported by the bolt 4 at the center. It can support a larger load than the original.
[0036]
Accordingly, the flat portion of the peripheral portion of the metal plate 5 fixed by the fixing member including the anchor bolt 3, the washer 7, and the nut 6 is not bent, and an error occurs in the height level and the horizontal level of the metal plate 5. There is nothing. Further, before the grout material 12 filled in the gap between the lower structure 1 and the metal plate 5 is solidified, a shoe 13 serving as a load transmitting body and a shoe holder 14 serving as an upper load receiving portion are formed on the metal plate 5. Since it is possible to mount and attach the shape steel 15 or a pillar of a building fixed to the shape steel 15, it is not necessary to wait for the grout material 12 to be solidified, and the construction period can be shortened.
[0037]
According to the said structure, since the height level adjustment of the metal plate 5 which comprises the lower side load receiving part A can be performed in one place of the volt | bolt 4 used as a height adjustment support member, workability | operativity is good and the height of the metal plate 5 is sufficient. Level and horizontal level adjustment work can be done easily and reliably.
[0038]
Next, as shown in FIGS. 9 and 10, the mold 11 is arranged on the four sides of the metal plate 5 outside the anchor bolt 3. A through hole 5c serving as a grout material filling hole and a grout material confirmation hole is formed outside the curved receiving surface 5a of the metal plate 5, and is formed of one of the through holes 5c as shown in FIG. Non-shrinkable grout material 12 is filled from the grout material filling hole.
[0039]
The non-shrinkable grout material 12 is filled in the gap space formed by the lower structure 1, the mold 11 and the metal plate 5, and the non-shrinkable grout is formed from the grout material confirmation hole including the other three through holes 5c. By confirming that the material 12 overflows, it is possible to confirm that the non-shrinkable grout material 12 is filled in the gap space formed by the lower structure 1, the mold 11 and the metal plate 5. .
[0040]
Then, at the stage where the non-shrinkable grout material 12 is solidified, as shown in FIG. 13, the mold 11 is removed, and the grout solidified layer obtained by solidifying the non-shrinkable grout material 12 and the metal plate 5 are integrated. Thus, the lower load receiving portion A is formed.
[0041]
Also, normally, for the installation of a pendulum type seismic isolation device, a non-shrinkable grout material is several millimeters to several tens of millimeters under the pendulum type seismic isolation device in order to adjust its height level and levelness. According to the above configuration, the grout solidified layer filled with a non-shrinkable grout material 12 between the metal plate 5 and the lower structure 1 and solidified, and the metal plate 5 are placed. Since the non-shrinkable grout material 12 can be used for height level adjustment and leveling adjustment of the lower load receiving portion A as it is, it is reasonable.
[0042]
Therefore, there is no need to machine expensive and heavy thick stainless steel plates and thick mild steel plates as in the above-mentioned known examples, and processing costs are reduced by omitting processing operations, material costs are reduced, and weight is reduced. It can be reduced and the construction work can be facilitated.
[0043]
On the curved receiving surface 5a of the metal plate 5 constituting the upper surface of the lower load receiving portion A, a shoe 13 serving as a load transmission body is slidably disposed on the curved receiving surface 5a. ing. As shown in FIG. 1, the shoe 13 has a sliding spherical surface portion 13 a having a predetermined curvature that is circular and convex downward corresponding to the curvature of the curved receiving surface 5 a of the metal plate 5, and the sliding spherical surface portion. 13a is formed of a single part having a sliding spherical surface portion 13b having a predetermined curvature that is concentrically and circular in a plan view.
[0044]
In this embodiment, the shoe 13 is formed by cutting using a mild steel material. For example, the radius of curvature of the sliding spherical surface portion 13a is set to 2234 mm and the radius of curvature of the sliding spherical surface portion 13b is set to 50 mm. The surface of the shoe 13 is rust-prevented by manganese phosphate treatment (parkarizing), and the surface is lubricated by coating molybdenum disulfide by baking or the like.
[0045]
In FIG. 1, a shoe holder 14 that is a columnar portion that holds the shoe 13 slidably and serves as an upper load receiving portion is disposed on the shoe 13. At the upper end of the shoe holder 14, a bolt 16 is inserted from a top surface of the lower flange 15a into a through hole 15b formed in a lower flange 15a of an H-shaped steel 15 serving as a steel frame of an upper structure, and the bolt 16 is screwed. A screw hole 14a serving as a coupling portion for bolt coupling by fastening is formed from the upper end surface side of the shoe holder 14 at a predetermined depth in the thickness direction.
[0046]
Further, the lower end portion of the shoe holder 14 corresponds to the sliding spherical surface portion 13b of the shoe 13 in a plan view and is more curved than the curved receiving surface 5a of the metal plate 5 of the lower load receiving portion A which is convex upward. A curved receiving surface 14b having a small radius of curvature is formed.
[0047]
Sliding spherical surface portions 13a and 13b formed on the lower surface and the upper surface of the shoe 13 serving as a load transmitting body are provided on the curved load receiving surface 5a of the metal plate 5 of the lower load receiving portion A and the shoe holder 14 serving as the upper load receiving portion. It is configured with a radius of curvature that aligns with the curved receiving surface 14b, and the shoe 13 moves integrally with the shoe holder 14 so that it can slide on the curved receiving surface 5a of the lower load receiving portion A. Has been.
[0048]
In the present embodiment, the shoe holder 14 is also formed by cutting using a mild steel material in the same manner as the shoe 13. For example, the shoe holder 14 has an outer diameter of 110 mm and a thickness of 50 mm, and has a curved surface. The radius of curvature of the surface 14b is 50mm, the diameter of the screw hole 14a is 12mm, the depth is 15mm, and the screw hole 14a is arranged at a position of 60mm square, and is set on the periphery of the upper end of the curved receiving surface 14b. Further, a curved surface having a curvature radius of 1 mm is formed.
[0049]
Further, the surface of the shoe holder 14 is rust-prevented by manganese phosphate treatment (parkerizing) in the same manner as the shoe 13, and the surface of the curved receiving surface 14b is covered with molybdenum disulfide by baking or the like. Processing has been applied.
[0050]
With the above configuration, the shoe 16 as the columnar portion can be directly coupled to the H-shaped steel 15 as the structure by screwing and tightening the bolt 16 into the screw hole 14a as the coupling portion.
[0051]
In the above configuration, when vibration is applied to an upper structure such as a building constructed on the upper part of the H-shaped steel 15 due to an earthquake or the like, the metal plate 5 of the lower load receiving portion A, as shown in FIGS. The shoe 13 slidably mounted on and supported by the curved receiving surface 5a slides on the curved receiving surface 5a integrally with the upper structure via the shoe holder 14, and moves horizontally. The seismic load applied to the superstructure can be attenuated by allowing the shaking of the upper structure.
[0052]
When the shoe 13 moves on the curved receiving surface 5a of the metal plate 5 of the lower load receiving portion A, the upper structure such as the shoe 13, the shoe holder 14 holding the shoe 13, and the H-shaped steel 15 is provided. As shown in FIG. 4, the height rises along the curved receiving surface 5a, and the shoe 13 is integrated with the anchor bolt 3 and the nut 6 for fixing the peripheral portion of the metal plate 5. It is set so that the superstructure such as the moving H-shaped steel 15 does not come into contact. If the upper end of the anchor bolt 3 remains longer than necessary when the height level of the metal plate 5 is adjusted, the anchor bolt 3 is cut at the site as necessary.
[0053]
Note that an upper structure such as a building is supported by the lower structure 1 through at least four or more pendulum type seismic isolation devices. Each shoe holder 14 serving as an upper load receiving portion is fixed to the upper structure, and each lower load receiving portion A is fixed to the lower structure 1, so the shoe holder 14 and the upper structure to which the shoe holder 14 is fixed. The object is always arranged parallel to the lower structure 1 and the lower load receiving portion A.
[0054]
Next, another configuration of the height adjustment support member will be described with reference to FIGS. 14 (a) to 14 (c), FIG. 15, and FIG. 14A to 14C are partial enlarged views showing the configuration of the height adjustment support member, and other configurations and construction methods are configured in the same manner as in the above-described embodiment. In FIG. 14 (a), a lock nut 21 screwed into the bolt 4 between a long nut 2 standing at a predetermined position of the lower structure 1 and a bolt 4 screwed into the upper portion of the long nut 2 is shown. Is provided.
[0055]
When adjusting the height level of the bolt 4 as described above, first, the lock nut 21 is screwed in advance above the head side of the bolt 4 and the height level of the bolt 4 is adjusted. Thereafter, the lock nut 21 is lowered while being screwed onto the bolt 4, and is brought into contact with the upper surface of the long nut 2 to be fastened and fixed. It is preferable that the height level of the adjusted bolt 4 does not shift even if the operator carelessly touches the bolt 4 or the like.
[0056]
FIG. 14 (b) shows a height adjustment support member which is composed of an anchor bolt 22 erected at a predetermined position of the lower structure 1 and a nut 23 screwed onto the upper portion of the anchor bolt 22. In the above configuration, the lower surface of the substantially central portion of the metal plate 5 of the lower load receiving portion A is placed on the upper surface of the nut 23, and the height of the metal plate 5 is adjusted by screwing the nut 23 to the anchor bolt 22. The height level can be adjusted by the length of the screw groove of the nut 23 in the vertical direction in FIG. 14B, and the height level adjustment allowance of the metal plate 5 can be small. In particular, in this case, since the anchor bolt 22 and the normal nut 23 can be used without using the long nut 2, the component cost can be reduced.
[0057]
In FIG. 14C, a lock nut 21 that is screwed into the anchor bolt 22 is provided below the nut 23 in FIG. 14B. When the height level of the nut 23 is adjusted in the same manner as described above, first, the lock nut 21 is screwed below the nut 23 (position close to the lower structure 1). After adjusting the height level, the lock nut 21 is raised while being screwed to the anchor bolt 22, and the height level of the nut 23 is adjusted by contacting the lower surface of the nut 23 and fastening and fixing it. The nut 23 can be securely fixed to the anchor bolt 22, so that the height level of the adjusted nut 23 does not shift even if the operator carelessly contacts the nut 23.
[0058]
The height adjustment support member shown in FIG. 15 is constituted by a commercially available height adjustment support component called super bun S (trade name) provided with a height level adjustment member using bolts and nuts on iron buns, and is provided with a lower structure 1 It is constructed so that it is constructed before the concrete is solidified.
[0059]
The height adjustment support component is integrally formed by welding, for example, an embedded container 24, a floating plate 25, and a nut 26 each having a space of a predetermined length, and a bolt 27 is screwed into the nut 26 to be embedded. The container 24 is configured to be stored in the internal space.
[0060]
Then, before the concrete which is the lower structure 1 is solidified, an embedding container 24 is buried inside the concrete and a floating plate 25 is floated on the upper surface of the concrete. After the concrete is completely solidified, the bolt 27 Is screwed onto the nut 26 to adjust the height level of the bolt 27 in the same manner as described above, and the lower surface of the substantially central portion of the metal plate 5 is placed on the upper surface of the bolt 27 to adjust the horizontal level of the metal plate 5. After that, the peripheral portion of the metal plate 5 is fixed by the anchor bolt 3 and the nut 6 and the washer 7 as the fixing members. At this time, the anchor bolt 3 surrounding one height adjusting support member is erected in combination with a reinforcing bar provided under the concrete of the lower structure 1.
[0061]
According to the above configuration, the concrete can be solidified and fixed to the lower structure 1 in a state where the upper part is floated from the floating plate 25 by the floating plate 25 while the buried container 24 is buried in the concrete that has not yet solidified. In the case where the long nut 2 and the anchor bolt 3 are embedded in the lower structure 1 as described above, a hole is formed in the lower structure 1, and then the long nut 2 and the anchor bolt 3 are installed in the hole. The trouble of inserting and standing up can be omitted, and workability is improved.
[0062]
The height adjustment support member shown in FIG. 16 is provided with a cup-shaped cap 28 that has a claw that contacts the upper surface of the floating plate 25 shown in FIG. It is.
[0063]
First, the cap 28 is inserted into the outer peripheral portion of the nut 26 so as to contact the upper surface of the floating plate 25, and the floating plate 25 and the embedded container 24 are buried in the unsolidified concrete while being locked to the outer peripheral portion of the nut 26. The cap 28 is also buried in the concrete partway along the side.
[0064]
As shown in FIG. 16, even if the floating plate 25 and the buried container 24 are further submerged in the concrete than in FIG. 15, the cap 28 is used to reach the portion of the nut 26 and the bolt 27 where the unsolidified concrete is disposed inside the cap 28. The screw 27 can be screwed into the nut 26 without any trouble.
[0065]
Then, after the concrete of the lower structure 1 is solidified, the cap 28 is pulled out from the outer periphery of the nut 26 and removed, and then the height level of the bolt 27 is adjusted in the same manner as described above to place a metal plate on the upper surface of the bolt 27. 5, the horizontal level of the metal plate 5 is adjusted, and the periphery of the metal plate 5 is fixed by the anchor bolt 3, the nut 6, the washer 7, and the like.
[0066]
With the above configuration, the floating plate 25, the buried container 24, and the nut 26 are further submerged in the concrete, so that the height level of the metal plate 5 placed on the upper surface of the bolt 27 can be set low. The amount of the grout material 12 filled in the gap between the metal plate 5 and the metal plate 5 can be reduced and the height position of the upper structure can be set low.
[0067]
In FIG. 16, a recessed portion 5d having a predetermined depth is formed at a position corresponding to the anchor bolt 3 in the peripheral portion of the metal plate 5, and an anchor bolt insertion hole 5b through which the anchor bolt 3 is inserted into the recessed portion 5d. Is formed. The depressed portion 5d can be easily formed by press working or the like. In the depressed portion 5d, the peripheral portion of the metal plate 5 is fixed by the nut 6 and the washer 7 that are screwed into the anchor bolt 3 in the same manner as described above.
[0068]
According to the above configuration, the upper tip height position of the anchor bolt 3 and the fixed height position of the nut 6 can be set low. As shown in FIG. 16, the upper tip end of the anchor bolt 3 and the nut 6 are depressed 5d. Can be set lower than the height of the metal plate 5, the upper structure such as the H-shaped steel 15 that moves integrally with the shoe 13 is attached to the anchor bolt 3 and the nut 6. The upper structure can also be arranged in the vicinity of the upper portion of the anchor bolt 3 without contact.
[0069]
In FIG. 16, the mold 11 used when the grout material 12 is filled in the gap between the lower structure 1 and the metal plate 5 is constituted by a transparent mold such as an acrylic plate. It is possible to visually check the filling state of the grout material 12, and in particular, by visually checking the filling state of the grout material 12 filled in the central portion where the cross section of the gap between the lower structure 1 and the metal plate 5 is narrowed. It is possible to reliably check the filling of the grout material 12 in the narrow central part.
[0070]
17 to 21, a grout material filling pipe 31 for filling the grout material 12 in the lower structure 1 is embedded in advance, and the lower structure 1 and the metal plate 5 are externally passed through the grout material filling pipe 31. The gap is filled with a non-shrinkable grout material 12.
[0071]
As shown in FIG. 17, the grout filling tube 31 uses a rubber tube, a thin metal tube, or the like, and the filling port at one end thereof is near the center where the gap between the lower structure 1 and the metal plate 5 becomes narrow. The lower structure 1 is disposed so as to be exposed from the upper surface of the concrete, and the other end portion is disposed outside the formwork 11 so as to be exposed from the upper surface of the concrete of the lower structure 1 and an intermediate portion thereof is embedded in the concrete.
[0072]
And after adjusting the height level of the volt | bolt 4 screwed together by the upper part of the long nut 2 as mentioned above, the substantially center part lower surface of the metal plate 5 is mounted on the upper surface of this volt | bolt 4, and this metal plate 5 After the horizontal level of the metal plate 5 is adjusted and the peripheral portion of the metal plate 5 is fixed using the anchor bolt 3, the nut 6 and the washer 7, the mold frame 11 is arranged around the metal plate 5 and shown in FIGS. In this way, the grout material 12 is supplied from the other end of the grout material filling pipe 31 and the grout material 12 is filled from the central part through which the cross section of the gap between the lower structure 1 and the metal plate 5 becomes narrower. To do.
[0073]
Then, as shown in FIG. 20, by confirming that the grout material 12 overflows through the grout material confirmation hole formed of the through hole 5c formed in the metal plate 5, there is no gap in the gap between the lower structure 1 and the metal plate 5. The grout material 12 can be reliably filled, and the lower load receiving portion A in which the metal plate 5 and the grout solidified layer are firmly and reliably integrated can be formed.
[0074]
Further, by setting the filling port of the grout material filling pipe 31 at the center part where the cross section of the gap between the lower structure 1 and the metal plate 5 is narrowed, the grout material 12 can be more reliably filled into the narrow center part. .
[0075]
Then, as shown in FIG. 21, the mold 11 is removed when the grout material 12 is solidified, and the other end portion of the grout material filling tube 31 is cut and removed as necessary.
[0076]
As another construction method, the grout material 12 is filled with the grout material filling pipe 31 from the central portion where the cross section of the gap between the lower structure 1 and the metal plate 5 becomes narrow, and at the same time, from the through hole 5c of the metal plate 5 as described above. The grout material 12 may be filled from the grout material filling hole, and the grout material 12 may be confirmed by the grout material confirmation hole including the remaining through holes 5c.
[0077]
Next, a second embodiment of the installation method of the pendulum type seismic isolation device according to the present invention will be described with reference to FIG. In addition, what was comprised similarly to the said 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.
[0078]
In the present embodiment, the curved receiving surface 5a of the metal plate 5 of the lower load receiving portion A is formed as a mortar-shaped conical surface, and the center bottom is formed of a spherical surface. On the other hand, the bolt 16 is inserted into the lower flange 15a of the H-shaped steel 15 serving as the steel structure of the upper structure by inserting the bolt 16 from the upper surface side of the lower flange 15a into the through hole 15b formed in the lower flange 15a. A holder 35 serving as an upper load receiving portion having a ball bearing fixed by screwing into the screw hole 35a is attached.
[0079]
A ball 36 serving as a load transmission body is supported on the ball bearing portion of the holder 35 so as to be able to roll. The ball 36 rolls on the curved receiving surface 5a of the metal plate 5, whereby the ball 36 is held in the holder. It is possible to roll and move on the curved receiving surface 5a integrally with the upper structure via 35, and to allow the horizontal vibration to be attenuated so that the seismic load applied to the upper structure can be attenuated. It has become.
[0080]
Also in the present embodiment, the lower load receiving portion A is constructed in substantially the same manner as the installation method shown in the first embodiment. That is, in a state where the lower surface of the substantially central portion of the metal plate 5 is placed and supported on the upper surface of the bolt 4 that is screwed into the long nut 2 that is one height adjustment support member that is erected on the lower structure 1. After adjusting the height level and the horizontal level of the metal plate 5, the nut 6 and the washer 7 are used for the anchor bolts 3 that serve as a plurality of fixing members erected on the lower structure 1 around the metal plate 5. The height level and the horizontal level of the metal plate 5 constituting the lower load receiving portion A can be adjusted easily and reliably. In particular, since the height level of the metal plate 5 can be adjusted at one place of the bolt 4 screwed into the long nut 2 serving as a height adjustment support member, workability is good.
[0081]
Further, since the bottom surface of the substantially central portion of the metal plate 5 is supported by the bolt 4 screwed into the long nut 2 that is the height adjustment support member, the height adjustment support member receives the load of the metal plate 5. The flat part around the metal plate 5 does not bend, and no error occurs in the height level or horizontal level of the metal plate 5. Further, before the grout material 12 filled in the gap between the substructure 1 and the metal plate 5 is solidified, the ball 36 or the holder 35, the H-shaped steel 15 or the H-shaped steel 15 or the like serving as a load transmission body is fixed on the metal plate 5. Since it is possible to mount and attach the pillars of the building to be built, it is not necessary to wait for the setting time of the grout material 12, and the construction period can be shortened.
[0082]
Also, the lower load receiving part A is integrated with the metal plate 5 by filling and solidifying the light-weight metal plate 5 and the gap between the metal plate 5 and the lower structure 1 with a non-shrinkable grout material 12. The workability is good because it is formed by the solidified grout solidified layer. Other configurations and construction methods are configured in the same manner as in the first embodiment, and similar effects can be obtained.
[0083]
In the present embodiment and each of the embodiments described later, various configurations described in the other configurations of the first embodiment can be adopted as appropriate, and similar effects can be obtained for these configurations.
[0084]
Next, a third embodiment of the installation method of the pendulum type seismic isolation device according to the present invention will be described with reference to FIGS. In addition, what was comprised similarly to each said embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.
[0085]
The lower load receiving portion A of the present embodiment is configured in substantially the same manner as in the first embodiment, and the portion fixed to the periphery of the metal plate 5 using the anchor bolt 3, the nut 6, and the washer 7 is the first portion. The depressed portion 5d shown in FIG. 16 of one embodiment is formed.
[0086]
On the curved receiving surface 5a of the metal plate 5 of the lower load receiving portion A, a shoe 41 serving as a load transmitting body is slidably arranged with respect to the curved receiving surface 5a. As shown in FIG. 23, the shoe 41 is formed of a columnar member having a predetermined dimension in the height direction, and is circular in a plan view and convex downward corresponding to the curvature of the curved receiving surface 5a of the metal plate 5. A sliding spherical surface portion 41a having a predetermined curvature, and a sliding spherical surface portion 41b having the same curvature as the sliding spherical surface portion 41a that is concentric with the sliding spherical surface portion 41a and that is also circular and convex upward. Configured.
[0087]
In the present embodiment, the shoe 41 is formed by cutting using a mild steel material. For example, the outer diameter is set to 100 mm. The surface of the shoe 41 is rust-prevented by manganese phosphate treatment (parkarizing), and the surface is lubricated by coating molybdenum disulfide by baking or the like.
[0088]
On the other hand, an upper load receiving portion B is provided at the lower portion of the H-section steel 15 that supports an upper structure such as a building. First, as shown in FIG. 26, the upper load receiving portion B is installed with a curvature equal to the radius of curvature of the curved receiving surface 5a of the metal plate 5 that is circular in the center and is convex upward. A curved receiving surface 42a having a radius is formed, and a grout material filling hole or a grout material confirmation hole is formed in an upper portion of a box-shaped metal plate 42 which is a box having a side plate 42b extending upward from the peripheral portion thereof. The load transmission plate 43 provided with the through hole 43a and the screw hole 43b is fixed by fastening the screw 44 to the side portion 43c of the load transmission plate 43 from the outside of the side plate 42b of the metal plate 42.
[0089]
Similar to the metal plate 5, the metal plate 42 can be composed of, for example, a thin soft steel plate having a thickness of about 2.3 mm or less, and the curved surface of the metal plate 42 is obtained by bending the metal plate 42. 42a can be formed easily. Further, the side plate 42b provided upright on the four outer sides of the metal plate 42 can be easily formed by press working or the like. Further, the load transmission plate 43 can also be made of a commercially available mild steel thick plate or the like.
[0090]
Then, as shown in FIG. 27, the non-shrinkable grout material 12 is filled from one of the through holes 43a formed in the load transmission plate 43 (for example, the through hole 43a provided in the central portion).
[0091]
The non-shrinkable grout material 12 was filled in the space formed by the box-shaped metal plate 42 and the load transmitting plate 43, and the non-shrinkable grout material 12 overflowed from the other four through holes 43a. It can be confirmed that the space formed by the metal plate 42 and the load transmission plate 43 is filled with the non-shrinkable grout material 12 (see FIG. 28).
[0092]
In particular, by filling the non-shrinkable grout material 12 from the through-hole 43a provided in the central portion of the load transmitting plate 43, the grout material 12 can be reliably filled into the central portion having a narrow cross section.
[0093]
In the present embodiment, as shown in FIG. 24, the through hole 43a provided in the central portion of the load transmitting plate 43 is disposed directly below the H-shaped steel 15, so that the grout material 12 overflows from the through hole 43a. When solidified, it becomes difficult to fix the load transmission plate 43 in close contact with the H-shaped steel 15, and as shown in FIG. 29, at least the grout material 12 overflowing from the through hole 43 a in the center of the load transmission plate 43 is waste. After wiping with 45 or the like, the upper part of the through-hole 43a is covered with a plate 46 so that the grout material 12 does not overflow from the through-hole 43a again, and is adhered with a gum tape 47.
[0094]
Then, when the non-shrinkable grout material 12 is solidified, the upper load receiving portion B is formed by integrating the grout solidified layer obtained by solidifying the grout material 12 and the metal plate 42, as shown in FIG. Then, the plate 46 and the gummed tape 47 adhered to the upper part of the through hole 43a at the center of the load transmitting plate 43 are removed. From the through hole 43a at the center of the load transmitting plate 43 to which the plate 46 and the gum tape 47 are adhered, a flat surface that can be in close contact with the lower surface of the lower flange 15a of the H-shaped steel 15 without overflowing the grout material 12 is formed. The upper load receiver B may be manufactured at a factory and transported to the site, or may be manufactured at the site.
[0095]
Next, as shown in FIG. 23, the sliding spherical surface portion 41a of the shoe 41 is slidably mounted on the curved receiving surface 5a of the metal plate 5, and the metal plate 42 is placed against the sliding spherical surface portion 41b of the shoe 41. The upper load receiving portion B is fixed to the lower portion of the H-shaped steel 15 so that the curved receiving surface 42a can be slidably contacted.
[0096]
When the upper load receiving portion B is fixed to the lower part of the H-shaped steel 15, the bolt 16 is inserted into the through hole 15b provided in the lower flange 15a of the H-shaped steel 15 from the upper surface side of the lower flange 15a to transmit the load. The upper load receiving portion B is fixed to and supported by the H-shaped steel 15 by being screwed into the screw hole 43b of the plate 43 and fixed.
[0097]
As another installation method, first, after attaching the load transmission plate 43 to the H-shaped steel 15, the metal plate 42 is fixed to the load transmission plate 43 to avoid the H-shaped steel 15. The non-shrinkable grout material 12 may be filled. First, after the load transmission plate 43 is attached to the metal plate 42, the load transmission plate 43 is fixed to the H-shaped steel 15 integrally with the metal plate 42. Similarly, the non-shrinkable grout material 12 may be filled from the through hole 43a formed avoiding the H-shaped steel 15.
[0098]
The load transmitting plate 43 is large enough to prevent the shoe 41 serving as a load transmitting member from being removed from its vertical projection position within the horizontal relative movement range allowed between the upper load receiving portion B and the lower load receiving portion A. It is comprised with thickness.
[0099]
That is, in the present embodiment, as shown in FIG. 24, the upper load receiving portion B is fixed to the upper structure via a crossed beam such as H-section steel 15 or the like, and the entire upper surface of the upper load receiving portion B is H In this case, the shoe 41 moves to the portion of the upper load receiving portion B located at a position deviating from the lower surface of the intersecting H-shaped steel 15. In this case, a shearing force according to the load of the upper structure acts on the metal plate 42 and the grout solidified layer solidified integrally therewith.
[0100]
Therefore, a load transmission plate 43 composed of a thick plate having a predetermined rigidity and strength that can sufficiently withstand the shearing force according to the load of the upper structure is provided between at least the upper load receiving portion B and the lower load receiving portion A. The shoe 41 moves to a position deviated from the lower surface of the H-section steel 15 by having a size that prevents the shoe 41 from being removed from the vertical projection position within the horizontal relative movement range permitted by the Even if a shearing force corresponding to the load of the superstructure acts on the metal plate 42 and the grout solidified layer solidified integrally therewith, the shearing force is received by the load transmitting plate 43 to maintain the upper load receiving portion B. Can be secured.
[0101]
The building is supported by the lower structure 1 through at least four or more pendulum type seismic isolation devices. Since each upper load receiving portion B is fixed to the upper structure, and each lower load receiving portion A is fixed to the lower structure 1, the upper load receiving portion B and the upper structure fixed to this are received. Are always arranged parallel to the lower structure 1 and the lower load receiving portion A.
[0102]
In the above configuration, when a vibration is applied to an upper structure such as a building constructed on the top of the H-shaped steel 15 due to an earthquake or the like, the curved receiving surface 5a and the upper load receiving portion of the metal plate 5 of the lower load receiving portion A The shoe 41, which is slidably provided between the B-shaped metal plate 42 and the curved receiving surface 42a, slides on the curved receiving surfaces 5a and 24a without substantially rotating to form an H shape. The steel 15 and the upper load receiving part B move integrally, and the horizontal load can be allowed to be damped and the seismic load applied to the building can be attenuated.
[0103]
According to the above configuration, the lower load receiving portion A fixed to the lower structure 1 installed on the ground and the upper load receiving portion fixed to the H-section steel 15 provided on the upper structure portion side such as a building. B is attached to a shoe 41 slidably provided between a curved receiving surface 5a of the metal plate 5 of the lower load receiving portion A and a curved receiving surface 42a of the metal plate 42 of the upper load receiving portion B. It is disposed in contact with each other and has an insulating function that substantially separates the upper structure from the lower structure 1 and prevents the seismic force from being transmitted to the upper structure.
[0104]
Further, when the upper structure undergoes a horizontal shift due to the earthquake, the upper load receiving portion B and the shoe 41 are also shifted upward along the curves of the curved receiving surfaces 5a and 42a, respectively. A restoration function that moves separately from the lower structure 1 and restores the upper structure at a position relatively shifted from the lower structure 1 to the same position as before the earthquake after the earthquake has stopped works.
[0105]
Further, the curved receiving surface 5a of the metal plate 5 of the lower load receiving portion A, the curved receiving surface 42a of the metal plate 42 of the upper load receiving portion B, and the sliding spherical surface portions 41a and 41b of the shoe 41 have predetermined dynamic friction. Damping that has a coefficient and converges the reciprocating motion of the upper structure in a short time after the earthquake is settled by the dynamic friction force acting between the curved receiving surfaces 5a and 42a and the sliding spherical surface portions 41a and 41b. Function works.
[0106]
Similarly, the curved receiving surface 5a of the metal plate 5 of the lower load receiving portion A, the curved receiving surface 42a of the metal plate 42 of the upper load receiving portion B, and the sliding spherical surface portions 41a and 42b of the shoe 41 are predetermined. The coefficient of static friction is relatively high, and it is comparatively relatively difficult for residential buildings and the like due to the static friction force acting between the curved receiving surfaces 5a and 42a and the sliding spherical surface portions 41a and 41b in a normal state when there is no earthquake. The wind lock function prevents the superstructure, which is light and easy to receive wind, from moving with the wind.
[0107]
Therefore, the above-mentioned pendulum type seismic isolation device has four functions of an insulation function, a restoration function, a damping function, and a wind lock function that are generally required for the seismic isolation device.
[0108]
The upper load receiving portion B is light, for example, about 40 kg in weight before placing the grout material 12 and about 60 kg in weight after placing the grout material 12. The load receiving part B can be lifted and attached, and the workability is excellent. The load transmission plate 43 can be manufactured at a low cost because a commercially available thick plate can be manufactured by a simple process such as drilling or threading. Further, the assembly of the upper load receiving part B and the filling work of the grout material 12 can be performed at the site or at the factory, which is preferable.
[0109]
Next, a fourth embodiment of the installation method of the pendulum type seismic isolation device according to the present invention will be described with reference to FIGS. In addition, what was comprised similarly to each said embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.
[0110]
In the third embodiment, as shown in FIG. 23, the case has been described in which the upper load receiving portion B is configured to have substantially the same size as the lower load receiving portion A. However, in the present embodiment, as shown in FIG. An example when the upper load receiving part B is configured to be smaller than the lower load receiving part A is shown.
[0111]
As shown in FIGS. 31 to 33, the metal plate 42 of the upper load receiving portion B is formed in a substantially trapezoidal box shape with the side plate 42b squeezed upward. A load transmission plate 43 provided with a through hole 43a and a screw hole 43b serving as a grout material filling hole or a grout material confirmation hole stops screws 44 from the outside of the side plate 42b of the metal plate 42 to the side portion 43c of the load transmission plate 43. It is fixed by attaching.
[0112]
Also in the load transmission plate 43 of the present embodiment, as shown in FIG. 32, the vertical projection is performed at least within the horizontal relative movement range allowed between the upper load receiving portion B and the lower load receiving portion A. The shoe 41 has a size that prevents the shoe 41 from being removed from the position, and the shoe 41 moves to a position removed from the lower surface of the H-shaped steel 15 to form a grout solidified layer solidified integrally with the metal plate 42. Even if a shearing force according to the load of the superstructure is applied, the shearing force is received by the load transmission plate 43 and the maintenance of the upper load receiving portion B can be ensured.
[0113]
Other configurations and installation methods are configured in the same manner as the above embodiments, and the same effects can be obtained.
[0114]
Next, a fifth embodiment of the installation method of the pendulum type seismic isolation device according to the present invention will be described with reference to FIG. In addition, what was comprised similarly to each said embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.
[0115]
In this embodiment, in the third embodiment shown in FIG. 23, the curved receiving surface 5a of the metal plate 5 of the lower load receiving portion A and the curved receiving surface 42a of the metal plate 42 of the upper load receiving portion B are cosine. It is formed by a curve, and a ball 36 serving as a load transmission body is interposed between both curved receiving surfaces 5a and 42a so as to be able to roll.
[0116]
Also in the load transmission plate 43 of the present embodiment, the ball 36 deviates from its vertical projection position within at least a horizontal relative movement range allowed between the upper load receiving portion B and the lower load receiving portion A. The ball 36 moves to a position deviated from the lower surface of the H-shaped steel 15 and the metal plate 42 and the grout solidified layer solidified integrally with the metal plate 42 are used to load the upper structure. Even if a corresponding shearing force is applied, the shearing force can be received by the load transmission plate 43 to ensure the maintenance of the upper load receiving portion B.
[0117]
Other configurations and installation methods are configured in the same manner as the above embodiments, and the same effects can be obtained.
[0118]
The curved receiving surfaces 5a and 42a of the metal plates 5 and 42 can be formed of various curved surfaces in addition to the above-described spherical surface, conical surface, or cosine curve.
[0119]
【The invention's effect】
Since the present invention has the above-described configuration and operation, the height of the metal plate is supported in a state where the lower surface of the metal plate is supported by one height adjustment support member provided upright on the lower structure. After adjusting the level and the horizontal level, the lower portion of the metal plate is fixed to a plurality of fixing members that surround the single height adjustment support member and are erected on the lower structure. The metal plate height level and horizontal level can be adjusted easily and reliably. In particular, workability is good because the height level of the metal plate can be adjusted at one location of the height adjustment support member.
[0120]
In addition, since the height adjustment support member receives the load of the metal plate by supporting the lower surface of the substantially central portion of the metal plate by the height adjustment support member, the peripheral portion of the metal plate fixed by the fixing member is flat. The portion does not bend, and no error occurs in the height level or horizontal level of the metal plate.
[0121]
Furthermore, before the grout material filled in the gap between the lower structure and the metal plate is solidified, the load transmitting body, the upper load receiving portion, and the upper structure can be placed on the metal plate for work. Therefore, it is not necessary to wait for the solidification time of the grout material, and the construction period can be shortened.
[0122]
Also, a lightweight and easy-to-handle metal plate for the lower load receiving portion, and a grout solidified layer integrated with the metal plate by filling and solidifying a non-shrinkable grout material in the gap between the metal plate and the lower structure The workability is good due to the formation.
[0123]
Further, according to the installation method of the pendulum type seismic isolation device, the receiving surface of the upper load receiving portion has a smaller radius of curvature than the receiving surface of the lower load receiving portion, and the load transmitting body is the upper load receiving portion. An upper surface and a lower surface of a radius of curvature that match the receiving surface of the lower portion and the receiving surface of the lower load receiving portion, respectively, and the load transmitting body moves integrally with the upper load receiving portion to When it is possible to slide on the receiving surface of the part, the receiving surface of the upper load receiving portion and the receiving surface of the lower load receiving portion have the same radius of curvature, and are interposed between the receiving surfaces This is suitable for the installation method of the pendulum type seismic isolation device when the load transmitting body is allowed to slide without substantially rotating between the two receiving surfaces.
[0124]
Further, a grout material filling hole and a grout material confirmation hole are provided in the metal plate forming the curved receiving surface in the lower load receiving portion, and the grout material is filled from the grout material filling hole, and the filled state is grouted. When confirming with the material confirmation hole, it can be easily filled by pouring a non-shrinkable grout material from the upper side of the metal plate of the lower load receiving portion into the gap between the lower structure and the metal plate, Furthermore, by visually confirming that the grout material overflows from the grout material confirmation hole, it is possible to reliably fill the gap between the lower structure and the metal plate without gaps, and the metal plate and the grout solidified layer are firmly and reliably integrated. A lower load receiving portion can be formed.
[0125]
Further, a grout material filling pipe is embedded in the lower structure in advance, and a non-shrinkable grout material is filled into the gap between the lower structure and the metal plate from the outside through the grout material filling pipe. On the occasion By setting the filling port of the grout material filling tube at the central portion where the cross section of the gap between the lower structure and the metal plate is narrowed, filling of the grout material into the narrow central portion can be ensured.
[0126]
Further, the curved load receiving surface of the upper load receiving portion fixed to the upper structure of the pendulum type seismic isolation device and the lower load receiving portion fixed to the lower structure is constituted by a metal plate, By making the grout solidified layer filled with a non-shrinkable grout material between the structure and solidifying it, and the metal plate, the expensive and heavy thick stainless steel plate and thick mild steel plate can be machined. It is possible to provide a pendulum type seismic isolation device installation method that eliminates the need for processing, reduces processing costs by reducing processing costs, reduces material costs, reduces weight, and facilitates construction work.
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view showing a configuration of a first embodiment of a pendulum type seismic isolation device according to the present invention.
FIG. 2 is an explanatory cross-sectional view showing the configuration of the first embodiment of the pendulum type seismic isolation device according to the present invention.
FIG. 3 is a plan view showing a configuration of a lower load receiving portion of the first embodiment.
FIG. 4 is an explanatory cross-sectional view showing a state in which the load transmitting body slides on the receiving surface of the lower load receiving portion in the first embodiment.
FIG. 5 is a plan view showing a state in which the load transmitting body slides on the receiving surface of the lower load receiving portion in the first embodiment.
FIG. 6 is an explanatory cross-sectional view showing a method for installing the lower load receiving portion of the first embodiment.
FIG. 7 is an explanatory cross-sectional view showing a method for installing the lower load receiving portion of the first embodiment.
FIG. 8 is an explanatory cross-sectional view illustrating a method for installing the lower load receiving portion of the first embodiment.
FIG. 9 is an explanatory cross-sectional view showing a method for installing the lower load receiving portion of the first embodiment.
FIG. 10 is an explanatory cross-sectional view illustrating a method for installing the lower load receiving portion of the first embodiment.
FIG. 11 is an explanatory cross-sectional view illustrating a method for installing the lower load receiving portion of the first embodiment.
FIG. 12 is an explanatory cross-sectional view illustrating a method for installing the lower load receiving portion of the first embodiment.
FIG. 13 is an explanatory cross-sectional view illustrating a method for installing the lower load receiving portion of the first embodiment.
FIGS. 14A to 14C are diagrams showing another configuration of the height adjustment support member.
FIG. 15 is a view showing another configuration of the height adjustment support member.
FIG. 16 is a diagram showing another configuration of the height adjustment support member.
FIG. 17 is a cross-sectional view illustrating a method for installing a lower load receiving portion when a grout material is filled in a gap between the lower structure and a metal plate through a grout material filling pipe embedded in the lower structure according to the first embodiment. FIG.
FIG. 18 is a cross-sectional view illustrating a method for installing a lower load receiving portion when a grout material is filled in a gap between the lower structure and a metal plate through a grout material filling pipe embedded in the lower structure according to the first embodiment. FIG.
FIG. 19 is a cross-sectional view illustrating a method for installing a lower load receiving portion when a grout material is filled in a gap between the lower structure and a metal plate through a grout material filling pipe embedded in the lower structure according to the first embodiment. FIG.
FIG. 20 is a cross-sectional view illustrating a method for installing a lower load receiving portion when a grout material is filled in a gap between the lower structure and a metal plate through a grout material filling pipe embedded in the lower structure according to the first embodiment. FIG.
FIG. 21 is a cross-sectional view illustrating a method for installing a lower load receiving portion when a grout material is filled in a gap between the lower structure and a metal plate through a grout material filling pipe embedded in the lower structure according to the first embodiment. FIG.
FIG. 22 is a cross-sectional explanatory view showing a configuration of a second embodiment of the pendulum type seismic isolation device according to the present invention.
FIG. 23 is a cross-sectional explanatory view showing a configuration of a third embodiment of the pendulum type seismic isolation device according to the present invention.
FIG. 24 is a plan view illustrating a configuration of an upper load receiver according to a third embodiment.
FIG. 25 is a plan view showing a configuration of a lower load receiving portion of the third embodiment.
FIG. 26 is an explanatory cross-sectional view showing a method for installing the upper load receiving portion of the third embodiment.
FIG. 27 is an explanatory cross-sectional view illustrating a method of installing the upper load receiving portion of the third embodiment.
FIG. 28 is a cross-sectional explanatory view showing a method for installing the upper load receiving portion of the third embodiment.
FIG. 29 is a cross-sectional explanatory view showing a method of installing the upper load receiving portion of the third embodiment.
30 is an explanatory cross-sectional view illustrating a method of installing the upper load receiving portion of the third embodiment. FIG.
FIG. 31 is a cross-sectional explanatory view showing a configuration of a fourth embodiment of the pendulum type seismic isolation device according to the present invention.
FIG. 32 is a cross-sectional explanatory view showing a state in which the load transmitting body slides on the receiving surfaces of the upper and lower load receiving portions in the fourth embodiment.
FIG. 33 is a plan view showing a configuration of an upper load receiver according to a fourth embodiment.
FIG. 34 is a plan view showing a configuration of a lower load receiving portion of the fourth embodiment.
FIG. 35 is a cross-sectional explanatory view showing a configuration of a fifth embodiment of the pendulum type seismic isolation device according to the present invention.
FIG. 36 is a diagram illustrating a first known example.
FIG. 37 is a diagram illustrating a second known example.
Fig. 38 is a diagram illustrating a third known example.
FIG. 39 is a diagram illustrating a fourth known example.
[Explanation of symbols]
A ... Lower load receiving part
B ... Upper load receiving part
1 ... Substructure
2. Long nut
3 ... Anchor bolt
4 ... Bolt
5 ... Metal plate
5a: curved receiving surface
5b ... Anchor bolt insertion hole
5c ... through hole
5d ... depression
6 ... Nut
7 ... Washer
8 ... Scale
9 ... Level surveying machine
10… Level
11 ... Formwork
12 ... Non-shrink grout
13 ... Shoe
13a, 13b ... Sliding spherical surface
14 ... Shoe holder
14a ... Screw hole
14b ... Curved receiving surface
15 ... H-section steel
15a ... Lower flange
15b ... through hole
16 ... Bolt
21 ... Lock nut
22 ... Anchor bolt
23 ... Nut
24 ... buried container
25 ... Floating board
26 ... Nut
27 ... Bolt
28… Cap
31 ... Grout filling tube
35 ... Holder
35a ... Screw hole
36… Ball
41 ... Shoe
41a, 41b ... Sliding spherical surface
42… Metal plate
42a ... Curved receiving surface
42b ... side plate
43… Load transmission plate
43a ... Through hole
43b ... Screw hole
43c ... side
44 ... Screw
45 ... Wes
46 ... board
47 ... Gum tape

Claims (4)

An upper load receiving portion having a curved receiving surface and fixed to the upper structure, a lower load receiving portion having a curved receiving surface and fixed to the lower structure, and the upper load In a method of installing a pendulum type seismic isolation device having a load transmission body interposed between both receiving surfaces of the receiving portion and the lower load receiving portion between the two structures,
With one height adjustment support member and a plurality of fixing members surrounding the upright to the lower structure, providing a metal plate have a curved receiving surface in the central portion forming the lower load receiving section The height of the metal plate is supported by the height adjustment support member to adjust its height level, and the horizontal level of the metal plate is adjusted by the plurality of fixing members in the periphery of the metal plate. Fixed,
Using the grout material filling pipe embedded in the lower structure in advance so that the filling port is located near the center of the metal plate and exposed from the upper surface of the lower structure, the lower structure and the metal An installation method for a pendulum type seismic isolation device, wherein a lower load receiving portion in which the metal plate and the grout solidified layer are integrated is formed by filling and solidifying a non-shrinkable grout material in a gap between the plates.   The receiving surface of the upper load receiving portion has a smaller radius of curvature than the receiving surface of the lower load receiving portion, and the load transmitting body is provided on the receiving surface of the upper load receiving portion and the receiving surface of the lower load receiving portion. The upper surface and the lower surface of each of the curvature radii that are aligned with each other, and the load transmitting body is moved integrally with the upper load receiving portion to be slidable on the receiving surface of the lower load receiving portion. Installation method of the pendulum type seismic isolation device described.   The receiving surface of the upper load receiving portion and the receiving surface of the lower load receiving portion have the same radius of curvature, and the load transmitting body interposed between the receiving surfaces substantially rotates between the receiving surfaces. The installation method of the pendulum type seismic isolation device according to claim 1, which can be slid without being performed.   A grout material filling hole and a grout material confirmation hole are provided in the metal plate forming the curved receiving surface in the lower load receiving portion, and the grout material is filled from the grout material filling hole, and the filling state is confirmed. It confirms with a hole, The installation method of the pendulum type seismic isolation apparatus of any one of Claims 1-3 characterized by the above-mentioned.

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