JP2016211626A - Base isolation frame and method of installing weight to base isolation frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce time and labor required for design and manufacturing by making a seismic isolator having a standard setting available, even when the weight of an object installed on a base isolation frame is lighter than a calculated value.SOLUTION: A base isolation frame 1 is formed by combining a frame 10 receiving the weight of an upper loaded object, with a seismic isolator 20. In the base isolation frame, a large weight 30 capable of passing an opening constituted by the frame 10 is installed in an engine frame 13 of the frame 10, and the end part of the weight 30 and the reception part of the frame 10 constituting the opening are fixed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a base isolation frame and a method for installing a weight on the base isolation frame.

  Containers for storing electronic devices such as computers and storage batteries are fixed to the foundation at the site, so that there is a problem in that the vibration is transmitted to the electronic devices stored in the event of an earthquake and the electronic devices are broken. Therefore, as a countermeasure against such a problem, the equipment inside the container is installed on a seismic isolation frame equipped with a seismic isolation device to protect the electronic equipment from vibration.

  Moreover, the technique which installs a weight as a balancer in the weight storage space of such a base isolation frame is disclosed (for example, refer patent document 1).

Japanese Patent No. 4545299

  However, in conventional seismic isolation racks, in general, seismic isolation devices are often designed by a method of individually designing according to the weight of an object and determining the performance of the seismic isolation device. Thus, it takes time and effort to design and manufacture each member in accordance with the weight of the object each time it is designed. The above is also a problem that is easily manifested when the weight of the object placed on the base isolation frame is different from the calculated value.

  Therefore, the present invention reduces the time and effort required for design or production by making the standard seismic isolation device available even when the weight of the object placed on the seismic isolation frame is lighter than the calculated value. It is intended to provide a seismic isolation frame that can be used and a method of installing a weight on the base isolation frame.

In order to solve the above problems, the present invention is a seismic isolation frame in which a framework that receives the weight of the upper load and a seismic isolation device are combined,
A weight of a size that can pass through an opening constituted by a framework is installed in the framework of the framework,
An end portion of the weight and a receiving portion of the skeleton constituting the opening portion are fixed.

  In this base isolation frame, the weight can be easily installed according to the weight deviation of the upper load. Therefore, if the weight of the object to be placed on the seismic isolation rack is lighter than the calculated value, the weight of the upper part is adjusted so that the weight is within the specified value that the pre-calculated seismic isolation device functions by adding a weight. can do. According to this, it becomes possible to use the standard seismic isolation device as it is.

  In addition, the weight added in this way also has an effect of suppressing deformation in the frame surface.

  The framework in the base isolation frame may be H-shaped steel, and the receiving portion may be a lower flange of the H-shaped steel. By using both the skeleton and the receiving part, the structure becomes simpler.

  Moreover, a hole for wiring may be opened in the framework. In such a seismic isolation frame, the wiring can be drawn from the side surface of the frame.

  Moreover, the seismic isolation frame may be provided with a connection fitting for fixing an ISO container in accordance with the ISO standard. Such a seismic isolation frame facilitates connection with the ISO container.

  Further, the base isolation frame may include a jack that applies a force in a horizontal direction to a foundation on which the base isolation device is placed, and a plurality of reaction force application units that apply a reaction force to the jack. According to such a base isolation frame, it is convenient to return the base isolation frame to the initial position after the earthquake.

  The reaction force application part may be a recess or a hole provided in the foundation. In this case, the reaction force can be applied with a simple configuration.

  Further, in the base isolation frame, the base isolation device is a sliding bearing, and a cover for covering the sliding surface of the sliding bearing is provided, and the cover includes a cover side surface fastener constituent member provided on the cover, A base side fastener constituting member provided on the foundation, and fixed to the foundation, and the cover is configured to apply a force to peel from a position away from the sliding support of the cover side fastener constituent member. Also good. When comprised in this way, even if a base isolation frame moves at the time of an earthquake, it can reduce that a hook_and_loop | surface fastener peels completely.

The present invention is a method of installing a weight on a base isolation frame in which a framework that receives the weight of an upper load and a base isolation device are combined,
Passing the weight through an opening constituted by a framework in the framework of the framework; and
Rotating the weight to bring the end of the weight into contact with the four side receiving portions constituting the opening of the framework; and
And a step of fixing the end portion of the weight and the receiving portion.

  According to this installation method, the weight can be installed on the base isolation frame according to the weight deviation of the upper load. Therefore, if the weight of the object to be placed on the seismic isolation rack is lighter than the calculated value, the weight of the upper part is adjusted so that the weight is within the specified value that the pre-calculated seismic isolation device functions by adding a weight. can do. According to this, it becomes possible to use the standard seismic isolation device as it is.

  In addition, the weight added in this way also has an effect of suppressing deformation in the frame surface.

  In the above-described method of installing the weight on the base isolation frame, the framework may be 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 a base isolation frame is lighter than the calculated value, it is possible to reduce the time and effort required for design or production by making the standard base isolation device available. Can do.

It is a front view which shows the structural example of the seismic isolation rack in the 1st Embodiment of this invention. It is a front view of the base isolation frame provided with the hole for wiring in the framework. It is a top view of the seismic isolation stand which shows the process of mounting | wearing a weight from an opening part. It is a top view of the base isolation frame which shows the state which rotated the weight and was fixed to the frame. It is a figure which shows the outline inside the seismic isolation stand which shows the process of mounting | wearing a weight from an opening part. It is a figure which shows the outline inside the seismic isolation stand which shows the state which rotated the weight and was fixed to the frame. It is a front view which shows the structural example of the seismic isolation rack in the 2nd Embodiment of this invention. It is a top view of a base isolation frame and a concrete foundation. It is a front view which shows the structural example of the seismic isolation stand 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 with the cover. It is a figure which expands and shows the periphery of a slide support further. It is a figure which shows an example of the waterproof cover structure of a sliding support.

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

<First Embodiment>
FIG. 1 shows an embodiment of a base isolation frame 1 according to the present invention. The seismic isolation frame 1 of this embodiment is a combination of a framework 10, a seismic isolation device 20, a weight 30, and the like, and is provided on a foundation such as a concrete foundation 100.

  The skeleton 10 is configured by, for example, combining a frame or the like forming a skeleton of the base isolation frame 1 into a rectangular shape in plan view (see FIG. 3 and the like). The combined frame or the like constitutes the frame 13. In addition, the frame 10 is provided with an opening 14 to which the weight 30 can be attached and detached. The framework 10 has sufficient strength to receive the weight of the upper load (for example, the container 2) loaded on the base isolation frame 1.

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

  In addition, the container 2 may be an ISO container (container conforming to ISO international standards). In this case, the seismic isolation rack 1 is designed in accordance with the ISO container (for example, 20ft and 40ft size containers). It may be. By matching the outside of the base isolation frame 1 with the ISO container, the design of the base isolation frame 1 can be patterned. The base isolation frame 1 of the present embodiment is provided with corner fittings (connection fittings) 50 for fixing the ISO container, and can be fixed simply by placing the container 2 (see FIG. 1 and the like).

  A wiring hole 12 may be provided in the base isolation frame 1 (the frame 10 constituting the base frame) (see FIG. 2). For example, when wiring is routed under the floor of the base isolation frame 1, the wiring can be passed through the wiring hole 12 from the inside to the outside of the base isolation frame 1 or vice versa.

  As the seismic isolation device 20 to be combined with the base isolation frame 1, a device designed in accordance with the performance of the base isolation frame 1 calculated or set in advance is used. In the base isolation frame 1 of the present embodiment, a sliding bearing is used as the base isolation device 20. In the present embodiment, the weight of the container (upper load) 2 to be placed on the seismic isolation cradle 1 is set, and it is planned that the seismic isolation device 20 can be used as it is within the range. On the other hand, when the weight of the container 2 is lighter than the calculated value, the standard seismic isolation device 20 is used as it is by increasing the weights 30.

  The weight 30 is a heavy object that is added to the base isolation frame 1 to adjust the weight when the weight of the container 2 is lighter than the calculated value. In the present embodiment, the frame 10 is of a size that can pass through the opening 14 formed by the frame 10 in the frame 13 of the frame 10, and that forms the end portion 31 of the weight 30 and the opening 14. A portion (in this specification, a portion that receives the end portion 31 of the weight 30 is referred to as a receiving portion, which is indicated by reference numeral 11) can be fixed, for example, a substantially rectangular shape or a shape approximate to this (the corner is cut) A plate-shaped weight 30 (see FIG. 3 and the like). Such a weight 30 can be attached to and detached from the frame 10 through the opening 14 (see FIG. 5). Further, the weight 30 can be integrated with the framework 10 by fixing the end 31 to the receiving portion 11. The configuration for fixing the end 31 to the receiving portion 11 is not particularly limited. For example, the weight 30 dropped into the inside of the framework 10 is rotated by a predetermined amount to be received by the receiving portion 11. It can be set as a state, and it can be set as the structure fixed with or without using a fastener (refer FIG. 4, FIG. 6). The weight 30 fixed to the skeleton 10 itself becomes a reinforcing member (brace), and suppresses deformation in the surface of the skeleton 10.

  When the seismic isolation device 20 functions and the seismic isolation cradle 1 is displaced, the restoration rubber 80 restores the seismic isolation cradle 1 to the original position so as not to deviate from the operating range. In the present embodiment, a restoring rubber 80 is disposed between the framework 10 of the base isolation frame 1 and the concrete foundation 100 (see FIG. 1 and the like). It is also preferable that the restoring rubber 80 is installed at two or more places. When the restoration rubber 80 is installed only in one place, the degree of freedom of movement of the base isolation frame 1 is high, and there is a possibility that the base isolation base 1 will rotate when restored, but there are at least two places. If the restoration rubber 80 is installed, the rotation of the seismic isolation rack 1 when restored can be suppressed. More preferably, these at least two restoration rubbers 80 are arranged symmetrically with respect to the position of the center of gravity of the base isolation frame 1.

<Second Embodiment>
7 and 8 show a second embodiment of the seismic isolation rack 1. The seismic isolation cradle 1 has a restoration jack 60 and a concave portion (reaction force imparting portion) 70 for fixing the jack.

  A plurality of jack fixing recesses 70 are provided at predetermined locations of the concrete foundation 100. In the seismic isolation rack 1 of the present embodiment, the recesses 70 are provided at eight places, two places on each side of the concrete foundation 100, but may be provided at one place on each side (see FIG. 8). ). The jack 60 is inserted into the recess 70 and attached to a predetermined location of the concrete foundation 100. The jack 60 is arranged so that a part thereof is in contact with the outer wall of the framework 10, and the position of the base isolation frame 1 is restored to the original position (initial position) by expanding and contracting. At this time, the recess 70 functions as a reaction force application unit that applies a reaction force to the jack 60. The reaction force imparting portion can be constituted 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>
9 to 13 show a third embodiment of the seismic isolation rack 1. The seismic isolation rack 1 is provided with a cover 40 that covers the sliding surface of the sliding bearing (seismic isolation device) 20 (the surface that is in sliding contact with the sliding plate).

  In general, if foreign matter such as dust is caught between the sliding support 20 and the sliding plate, the performance as a seismic isolation device is deteriorated. However, if the sliding bearing 20 is connected to the concrete foundation 100, the seismic isolation function does not work because it does not slip during an earthquake. In this respect, in this embodiment, the cover 40 is attached to the slide support 20 and the space between the slide plate is sealed by using the hook-and-loop fastener 41, so that the slide support 20 can move in the event of an earthquake. And foreign matter such as dust is prevented from entering. Such a seismic isolation rack 1 is particularly suitable as a seismic isolation rack for container-type storage batteries, container-type power conditioning systems, container-type data centers, and the like.

  In the base isolation frame 1 of the present embodiment, the hook-and-loop fastener 41 is composed of a cover side fastener constituent member (not shown) provided on the cover 40 and a base side fastener constituent member (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 constituent member and the base side fastener constituent member (see FIGS. 9 and 10).

  Moreover, the cover 40 is comprised so that the force made to peel from the position away from the sliding bearing 20 of the cover side surface fastener structural member may be applied. When comprised in this way, even if the base isolation stand 1 moves at the time of an earthquake, it can reduce that the hook_and_loop | surface fastener 41 peels completely. The cover 40 is preferably made of a polymer waterproof sheet from the viewpoint 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 slide support 20 and a hook-and-loop fastener fixing bracket 43 that forms a surface where the fastener is bound to the portion near the outer edge of the cover 40 by the hook-and-loop fastener 41 and the hook-and-loop fastener 41 Then, it attaches to the concrete foundation 100 and seals between the sliding plate (support) 42. Further, a part of the cover 40 is attached to the support fixture 22 using the cover fixture 45 and the fixing pin 46 with the water-stop packing 44 interposed. With such a configuration, the movement of the sliding bearing 20 is ensured in the event of an earthquake, while water and dust entering the sliding bearing 20 are prevented in a normal state, and the sliding bearing 20 is slipped by removing the hook-and-loop fastener 41 in the event of an earthquake. ing. The cover is preferably large so that the sliding surface is not exposed even if there is some deviation.

  Moreover, it is preferable that the cover 40 and the hook-and-loop fastener 41 have a margin (extra length) that does not easily peel off when the sliding bearing 20 moves. For example, if the hook-and-loop fastener 41 is folded and overlapped, when the sliding support 20 moves and the cover 40 is pulled, the folded portion can be displaced to follow up to a certain stroke. The bonded state can be maintained and foreign matter such as water and dust can be prevented from entering (see FIG. 14). Alternatively, of the surface where the hook-and-loop fastener 41 and the cover 40 are in contact with each other, the outer portion (position away from the sliding support 20 of the cover side fastener constituent member) is fixed and the inner side (close to the sliding support 20 of the cover side fastener constituent member). ) Is not fixed, it is also possible to create a margin (extra length) that does not easily peel off when the sliding bearing 20 moves.

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

  The present invention can be developed for uses such as storage batteries, container-type power conditioning systems, and container-type data centers. Since the weight varies depending on the type of battery, a weight adjustment function is required. In particular, in the case of a container type storage battery, the weight adjustment function is important for a container because the weight varies greatly even with the same capacity depending on the type of battery such as a lead storage battery or a lithium ion battery.

1 ... Seismic isolation stand 2 ... Container (upload)
DESCRIPTION OF SYMBOLS 10 ... Frame 11 ... (Frame) receiving part 12 ... (Frame) wiring hole 13 ... Frame structure 14 ... Opening 20 ... Sliding support (Seismic isolation device)
21 ... Sliding surface 30 (of sliding support) ... Weight 31 ... End of weight 40 ... Cover 41 ... Hook fastener 50 ... Corner fitting (connection fitting)
60 ... Jack 70 ... Recess (Reaction force imparting part)
80 ... Restoring rubber 100 ... Concrete foundation (foundation)

Claims (9)

A seismic isolation frame that combines a framework that receives the weight of the upper load and a seismic isolation device,
A weight of a size that can pass through an opening constituted by a framework is installed in the framework of the framework,
The seismic isolation rack according to claim 1, wherein an end portion of the weight and a receiving portion of the frame constituting the opening are fixed.   The base isolation frame according to claim 1, wherein the framework is H-shaped steel, and the receiving portion is a lower flange of the H-shaped steel.   The base isolation frame according to claim 1, 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 in accordance with the ISO standard.   5. The apparatus according to claim 1, further comprising: a jack that applies a force in a horizontal direction to a foundation on which the seismic isolation device is placed, and a plurality of reaction force application units that apply a reaction force to the jack. Base isolation rack.   The base isolation frame according to claim 5, wherein the reaction force application unit is a recess or a hole provided in the foundation. 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 constituent member provided on the cover and a base side fastener constituent member provided on the foundation,
The seismic isolation rack according to any one of claims 1 to 6, wherein the cover is configured to apply a force for separating the cover side surface fastener component from a position away from the sliding support. It is a method of installing a weight on a seismic isolation frame in which a framework that receives the weight of the upper load and a seismic isolation device are combined,
Passing the weight through an opening constituted by a framework in the framework of the framework; and
Rotating the weight to bring the end of the weight into contact with the four side receiving portions constituting the opening of the framework; and
A step of fixing the end of the weight and the receiving portion, and a method of installing the weight on the base isolation frame.   The method for installing a weight on a base isolation frame according to claim 8, wherein the framework is H-shaped steel, and the receiving portion is a lower flange of the H-shaped steel.

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