JP6543080B2 - Seismic isolation stand and installation method of weight to seismic isolation stand - Google Patents

Description

  The present invention relates to a seismic isolation base and a method of installing a weight on the seismic isolation base.

  A container for storing an electronic device such as a computer or a storage battery is fixed to a base at a site, and therefore, there is a problem that vibration is transmitted to the electronic device stored when an earthquake occurs, and the electronic device is broken. Then, as a countermeasure against such a problem, installing the apparatus inside a container on the seismic isolation mount frame provided with the seismic isolation apparatus, and protecting an electronic device from vibration is performed.

  In addition, a technology for installing a weight as a balancer in a weight storage space of such a seismic isolation stand is disclosed (for example, see Patent Document 1).

Patent No. 4545299

  However, in the conventional seismic isolation base, in many cases, the seismic isolation device is generally designed by a method in which the performance of the seismic isolation device is determined by designing individually according to the weight of the object. Thus, it takes time and effort to design and manufacture each member according to the weight of the object each time it is designed. The above is also a problem that is likely to be manifested when the weight of the object placed on the seismic isolation stand is different from the calculated value.

  Therefore, the present invention is to reduce the time and labor required for designing or manufacturing by making it possible to use the seismic isolation device of the standard setting even when the weight of the object placed on the seismic isolation rack is lighter than the calculated value. It is an object of the present invention to provide a seismic isolation base capable of reducing vibration and a method of installing a weight on the seismic isolation base.

In order to solve the above-mentioned problems, the present invention is a seismic isolation system in which a framework for receiving the weight of an upper load and a seismic isolation device are combined,
A weight having a size capable of passing through an opening constituted by a framework is installed in the framework of the framework,
The end portion of the weight and the receiving portion of the skeleton constituting the opening are fixed.

  In this seismic stand, the weight can be easily installed according to the weight deviation of the upper load. Therefore, when the weight of the object placed on the seismic isolation system is lighter than the calculated value, the weight of the upper part is adjusted to be within the specified value at which the seismic isolation device previously calculated functions by adding a weight. can do. According to this, it becomes possible to use the seismic isolation device of the standard setting as it is.

  Moreover, the effect | action that the weight added in this way suppresses the deformation | transformation in the construction surface of a framework is also acquired.

  The frame in the seismic isolation system may be an H-shaped steel, and the receiving portion may be a lower flange of the H-shaped steel. By combining the framework and the receiving part, the structure becomes simpler.

  In addition, a hole for wiring may be opened in the frame. In such a seismic isolation stand, wiring can be pulled out from the side of a stand.

  Moreover, the seismic isolation base may be provided with the connection metal fitting which fixes the ISO container based on ISO specification. Such a seismic isolation stand facilitates connection with the ISO container.

  Moreover, the seismic isolation base may have a jack that applies a force in the horizontal direction to the foundation on which the seismic isolation device is mounted, and a plurality of reaction force application units that apply a reaction force to the jack. Such a seismic isolation system is convenient for returning the seismic isolation system to an initial position after an earthquake.

  Further, the reaction force applying portion may be a recess or a hole provided on the base. In this case, the reaction force can be applied with a simple configuration.

  Further, in the seismic isolation base, the seismic isolation device is a sliding bearing, and a cover is provided for covering the sliding surface of the sliding bearing, and the cover is a cover side fastener component provided on the cover; A foundation side fastener component provided on the foundation and secured to the foundation by the foundation side fastener component, the cover being configured to exert a force to release the cover side fastener component away from the sliding support It is also good. When configured in this way, complete detachment of the surface fastener can be reduced even if the seismic isolation base moves during an earthquake.

The present invention relates to a method of installing a weight on a seismic isolation system comprising a combination of a framework for receiving the weight of an upper load and a seismic isolation device,
Passing the weight through an opening defined by the framework within the framework of the framework;
Bringing the end of the weight into contact with the four receiving parts constituting the opening of the framework by rotating the weight;
And a step of fixing the end of the weight and the receiving portion.

  According to this installation method, the weight can be installed on the seismic isolation base according to the weight deviation of the upper load. Therefore, when the weight of the object placed on the seismic isolation system is lighter than the calculated value, the weight of the upper part is adjusted to be within the specified value at which the seismic isolation device previously calculated functions by adding a weight. can do. According to this, it becomes possible to use the seismic isolation device of the standard setting as it is.

  Moreover, the effect | action that the weight added in this way suppresses the deformation | transformation in the construction surface of a framework is also acquired.

  In the above-described method of installing the weight on the seismic isolation base, the framework may be an H-shaped steel, and the receiving portion may be a lower flange of the H-shaped steel.

  According to the present invention, even when the weight of an object placed on the seismic isolation rack is lighter than the calculated value, the time and effort required for designing or manufacturing can be reduced by making the seismic isolation device of the standard setting available. Can.

It is a front view which shows the structural example of the seismic isolation base in the 1st Embodiment of this invention. It is a front view of the seismic isolation base provided with the hole for wiring in frame. It is a top view of the seismic isolation base which shows the process of mounting a weight from an opening part. It is a top view of the base isolation stand which shows the state which rotated the weight and fixed to the frame. It is a figure which shows the outline of the inside of the seismic isolation base which shows the process of mounting a weight from an opening part. It is a figure which shows the outline of the inside of the seismic isolation base which shows the state which rotated the weight and fixed to the frame. It is a front view which shows the structural example of the seismic isolation base in the 2nd Embodiment of this invention. It is a top view of a seismic isolation base and a concrete foundation. It is a front view which shows the structural example of the seismic isolation base in the 3rd Embodiment of this invention. It is a figure which expands and shows the periphery of the sliding bearing in FIG. It is a top view which shows the state which expand | deployed the cover. It is a top view which shows the state which wrapped the sliding support by the cover. It is a figure which expands and shows the circumference of a sliding bearing. It is a figure which shows an example of the waterproof cover structure of a sliding bearing.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First Embodiment
FIG. 1 etc. show an embodiment of the seismic isolation system 1 according to the present invention. The seismic isolation base 1 of the present embodiment is a combination of a framework 10, an seismic isolation device 20, a weight 30, and the like, and is provided on a foundation, for example, a concrete foundation 100.

  The framework 10 is configured by combining, for example, a frame forming a framework of the seismic isolation system 1 into a rectangular shape in plan view (see FIG. 3 and the like). The combined frame and the like constitute a frame 13. Further, in the framework 10, an opening 14 to which the weight 30 can be attached and detached is formed. The framework 10 has sufficient strength to receive the weight of the upper load (for example, the container 2) loaded on the seismic isolation stand 1.

  The framework 10 of this embodiment is an H-shaped steel. Further, the lower flange of the H-shaped steel is the receiving portion 11 described later. By combining the framework 10 and the receiving portion 11, the structure becomes simpler. In the present embodiment, the receiving portions 11 are provided on four sides of the opening 14 of the framework 10.

  In addition, the container 2 may be an ISO container (a container conforming to the international standard of ISO), and in this case, the seismic isolation base 1 is designed in accordance with the ISO container (for example, a 20ft, 40ft size container) It may be By matching the outside of the seismic isolation stand 1 to an ISO container, the design of the seismic isolation stand 1 can be patterned. The corner fitting (connection fitting) 50 for fixing an ISO container is installed in the seismic isolation base 1 of this embodiment, and it enables it to fix only by mounting the container 2 (refer FIG. 1 etc.).

  The wiring hole 12 may be provided in the seismic isolation base 1 (the framework 10 constituting the same) (see FIG. 2). For example, when the wiring is routed under the floor of the seismic isolation stand 1, the wiring can be passed from the inside to the outer side of the seismic isolation stand 1 or the reverse through the wiring hole 12.

  As the seismic isolation apparatus 20 combined with the seismic isolation base 1, what was designed according to the performance of the seismic isolation base 1 calculated or set beforehand is used. A slide bearing is used as the seismic isolation device 20 in the seismic isolation base 1 of the present embodiment. In this embodiment, the weight of the container (upper load) 2 placed on the seismic isolation rack 1 is set, and if it is within the range, it is planned that the seismic isolation device 20 can be used as it is. On the other hand, when the weight of the container 2 is lighter than the calculated value, the seismic isolation device 20 of the standard setting is used as it is by accumulating the weight 30.

  The weight 30 is a weight for being added to the seismic isolation rack 1 and adjusting its weight when the weight of the container 2 is lighter than the calculated value. In this embodiment, the frame 10 has a size capable of passing through the opening 14 formed by the frame 10 in the frame 13 of the frame 10, and the frame 30 constituting the end 31 of the weight 30 and the opening 14 A part (herein, a part receiving the end 31 of the weight 30 is called a receiving part, indicated by reference numeral 11) can be fixed, for example, a substantially rectangular shape or a shape similar to this (corner cut The plate-like weight 30 of shape is employ | adopted (refer FIG. 3 etc.). Such a weight 30 can be attached to and removed from the framework 10 through the opening 14 (see FIG. 5). Further, by fixing the end portion 31 to the receiving portion 11, the weight 30 can be integrated into the framework 10. The configuration for fixing the end 31 to the receiving portion 11 is not particularly limited. However, for example, the weight 30 dropped inside the framework 10 is rotated by a predetermined amount there, and the end 31 is received by the receiving portion 11 It can be in a state and fixed with or without a fastener (see FIGS. 4 and 6). The weight 30 fixed to the frame 10 itself becomes a reinforcing member (brace), and suppresses deformation in the surface of the frame 10.

  When the seismic isolation device 20 functions and the seismic isolation base 1 is shifted, the restoration rubber 80 restores the seismic isolation base 1 to near the original position so as not to deviate from the operating range. In the present embodiment, the restoration rubber 80 is disposed between the framework 10 of the seismic isolation stand 1 and the concrete foundation 100 (see FIG. 1 etc.). It is also preferable that the restoration rubber 80 be installed at two or more places. When the restoration rubber 80 is installed at only one place, the freedom of movement of the seismic isolation base 1 is high, and there is a possibility that the seismic isolation base 1 may rotate when restored, but at least two places. If the restoration rubber 80 is installed on the side, rotation of the seismic isolation base 1 at the time of restoration can be suppressed. It is further preferable that the at least two restoration rubbers 80 be disposed symmetrically with reference to the center of gravity position of the seismic isolation stand 1.

Second Embodiment
FIGS. 7 and 8 show a second embodiment of the seismic isolation system 1. This seismic isolation base 1 has a jack 60 for restoration and a recess (a reaction force application portion) 70 for jack fixing.

  A plurality of jack fixing recesses 70 are provided at predetermined positions of the concrete foundation 100. In the seismic isolation system 1 of the present embodiment, the recessed portions 70 are provided at eight places in total at two places on each side of the concrete foundation 100, but it is also possible to use one place on each side (see FIG. 8). ). The jack 60 is inserted into the recess 70 and attached to a predetermined place of the concrete foundation 100. The jack 60 is disposed such that a part of the jack 60 abuts on the outer wall of the framework 10, and the position of the seismic isolation base 1 is restored to the original position (initial position) by expansion and contraction. At this time, the recess 70 functions as a reaction force applying unit that applies a reaction force to the jack 60. The reaction force applying portion can also be configured by a convex portion or the like instead of the concave portion. The jack 60 can be retrofitted to the jack fixing recess 70 later.

Third Embodiment
FIGS. 9 to 13 show a third embodiment of the seismic isolation base 1. In the seismic isolation base 1, a cover 40 is provided which covers the sliding surface (surface in sliding contact with the sliding plate) of the sliding bearing (base isolation device) 20.

  In general, if foreign matter such as dust gets caught between the sliding bearing 20 and the sliding plate, the performance as a seismic isolation device will deteriorate. However, if the slide bearing 20 is connected to the concrete foundation 100, the base isolation function does not work because it does not slip at the time of an earthquake. In this respect, in the present embodiment, the cover 40 is attached to the sliding bearing 20 and the space between the sliding plate and the sliding plate is sealed using the surface fastener 41 so that the sliding bearing 20 can move at the time of an earthquake and water In addition, foreign matter such as dust is prevented from entering. Such a seismic isolation base 1 is particularly suitable as a seismic isolation base such as a container type storage battery, a container type power conditioning system, or a container type data center.

  In the seismic isolation system 1 of the present embodiment, the surface fastener 41 includes a cover side fastener component (not shown) provided on the cover 40 and a base side fastener component (not shown) provided on the concrete foundation 100. It is configured. The cover 40 is fixed to the concrete foundation 100 by the cover side fastener component and the base side fastener component (see FIGS. 9 and 10).

  Also, the cover 40 is configured to apply a peeling force from a position away from the slide bearing 20 of the cover side fastener component. When configured in this manner, complete detachment of the surface fastener 41 can be reduced even if the seismic isolation base 1 moves during an earthquake. The cover 40 is preferably made of a polymer waterproof sheet in terms of flexibility and durability.

  An example of the waterproof cover structure of the sliding bearing 20 will be described (see FIG. 14). A cover (waterproof sheet) 40 having a waterproof function is put on the sliding bearing 20, and a surface fastener fixing bracket 43 is used which constitutes a surface to which the surface fastener 41 and the surface fastener 41 bind a portion near the outer edge of the cover 40. Then, it is attached to the concrete foundation 100 and sealed between the slide plate (bearing support) 42. Further, the cover 40 is attached to the support fixture 22 using the cover fixing bracket 45 and the fixing pin 46 with the waterproof packing 44 interposed therebetween. With such a configuration, while the movement of the slide bearing 20 is secured during an earthquake, water and dust entering the slide bearing 20 are normally prevented, and the slide fastener 20 slips when the surface fastener 41 is removed during an earthquake. ing. The cover is preferably larger so that the sliding surface is not exposed even if there is a slight displacement.

  In addition, it is preferable that the cover 40 and the surface fastener 41 have a margin (remaining length) that does not easily peel off when the sliding bearing 20 moves. For example, when the surface fastener 41 is folded back and stacked, when the sliding bearing 20 moves and the cover 40 is pulled, the folded portion can be displaced to follow a certain stroke, so that the fastener The bonded state can be maintained to prevent the entry of foreign matter such as water and dust (see FIG. 14). Alternatively, of the surfaces where the surface fastener 41 and the cover 40 are in contact, a portion on the outer side (a position away from the slide bearing 20 of the cover side fastener component) is fixed, By unfixing the part of), it is possible to create a margin (remaining length) which does not easily peel off when the sliding bearing 20 moves.

  The above-described embodiment is an example of the preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the scope of the present invention.

  The present invention can be deployed in applications such as storage batteries, container-type power conditioning systems, and container-type data centers. The weight of the battery varies depending on the type, so a weight adjustment function is required. In particular, in the case of a container type storage battery, the weight is largely different depending on the battery type such as lead storage battery or lithium ion battery, even if the capacity is the same, the weight adjustment function becomes important as a container.

1 ... Seismic isolation stand 2 ... container (upper load)
DESCRIPTION OF REFERENCE NUMERALS 10 frame 11 receiving portion 12 (for frame) wiring hole 13 (for frame) frame for frame 14 opening 20 sliding bearing (base isolation device)
21 ... (slide bearing) sliding surface 30 ... weight 31 ... (end of weight) end 40 ... cover 41 ... surface fastener 50 ... corner bracket (connection bracket)
60 ... jack 70 ... recessed portion (reaction force application portion)
80 ... restored rubber 100 ... concrete foundation (base)

Claims (9)

It is a seismic isolation base where the frame receiving the weight of the upper load and the seismic isolation system are combined,
Within the framework of the framework it is possible to pass past the opening constituted by the framework, while at the receiving part of the framework there is placed a weight of a shape and size which abuts ,
An isolation support according to claim 1, wherein an end of the weight and a receiving portion of the skeleton constituting the opening are fixed.   The seismic isolation system according to claim 1, wherein the framework is an H-shaped steel, and the receiving portion is a lower flange of the H-shaped steel. The seismic isolation stand according to claim 1 or 2 , wherein a hole for wiring is opened in the frame.   The seismic isolation rack according to any one of claims 1 to 3, further comprising a connection fitting for fixing an ISO container conforming to the ISO standard. 5. The foundation according to claim 1, further comprising: a jack that applies a force in the horizontal direction; and a plurality of reaction force application units that apply a reaction force to the jack. 4. Seismic isolation stand described.   The seismic isolation system according to claim 5, wherein the reaction force applying portion is a recess or a hole provided in the base. The seismic isolation device is a sliding bearing,
A cover is provided to cover the sliding surface of the sliding bearing,
The cover is fixed to the foundation by a cover side fastener component provided on the cover and a foundation side fastener component provided on a foundation on which the seismic isolation device is mounted .
The seismic isolation system according to any one of claims 1 to 6, wherein the cover is configured to apply a peeling force from a position of the cover side surface fastener component away from the slide bearing. A method of installing a weight on a seismic isolation base comprising a combination of a framework receiving the weight of an upper load and a seismic isolation device,
Step 1 to pass the weight to the opening configured by the framework to call the premises of the framework,
Step 2 of rotating the weight to bring the end of the weight into contact with the four sides of the receiving portion of the opening of the framework;
Step 3 for fixing the said receiving portion and the end portion of the weight, only including,
A method of installing a weight on a seismic isolation base, wherein the method is performed in the order of step 1, step 2, and step 3 . The method according to claim 8, wherein the frame is an H-shaped steel and the receiving portion is a lower flange of the H-shaped steel.

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