JP5028891B2 - Relative displacement detection method and relative displacement recording apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a relative displacement detection method or the like, usable repeatedly, capable of suppressing maintenance cost inexpensively, and detecting the displacement after experience of an earthquake or a strong wind. <P>SOLUTION: This relative displacement recording device for recording an interval formed in accompany with relative displacement has a moving body storing body provide with a storage part for guiding a plurality of stored moving bodies downward following one of two members to be displaced relatively; the first regulation plate capable of dropping a moving body in some storage part following the other member; and the second regulation plate arranged over the first regulation plate at an interval capable of storing one moving body, capable of blocking a storage part becoming droppable by opening, and dropping a moving body from a storage part adjacent to the storage part becoming droppable. This detection method has a step for specifying the state of an interval formed in the moving body storing body by using the recording device, and a step for detecting the relative displacement based on the specified interval state. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a relative displacement detection method and a relative displacement recording apparatus, and in particular, detects relative displacement (cumulative displacement, maximum displacement, residual displacement, etc.) generated between an upper floor and a lower floor of a structure such as a building. The present invention relates to a relative displacement detection method and a relative displacement recording apparatus.

Some buildings, such as high-rise buildings, are equipped with vibration dampers and plastic dampers using steel materials to absorb the seismic energy to suppress the shaking of the building and to prevent damage to the building. . Such vibration dampers and plastic dampers deteriorate due to repeated loads, and therefore need to be replaced with new ones. For this reason, it is desirable to detect a relative displacement that has occurred in the past between the upper floor and the lower floor of a building equipped with a vibration damper or a plastic damper. As a device for detecting the relative displacement that has occurred in the past, for example, a building is provided with a plurality of carbon fibers, and the maximum displacement is determined from the difference in energization situation due to the carbon fibers being cut according to the relative displacement of the building. What is comprised so that a value may be read is known (for example, refer patent document 1).
Japanese Patent Laid-Open No. 9-96502

  However, in the apparatus for detecting the relative displacement as described above, the carbon fiber that has been cut once cannot be restored. For this reason, the cut | disconnected carbon fiber had to be replaced | exchanged for a new thing, and there existed a subject that maintenance expense of an apparatus would require a big expense.

  The present invention has been made in view of the above-described conventional problems, can be used repeatedly, can reduce maintenance costs, and can detect the displacement after experiencing an earthquake or a strong wind. An object of the present invention is to provide a relative displacement detection method and a relative displacement recording apparatus.

  In order to achieve the above object, a relative displacement detection method according to the present invention is a relative displacement detection method for detecting a relative displacement between two members, and is displaced following one of the two members. In addition, a moving body storage body in which a plurality of moving bodies are arranged in a line in the vertical direction and a storage portion that guides the moving body downward is provided in a plurality of rows in the displacement direction of the two members, and the two The movable body is displaced following the other of the members and is provided under the movable body storage body, and the mobile body stored in any one of the plurality of storage sections is moved away from the storage section. A first restricting plate that has an opening that allows it to fall and restricts dropping of the movable body stored in another storage portion; and is displaced together with the first restricting plate, and is disposed above the first restricting plate. The movable body is disposed at an interval that can accommodate the moving body. A first opening having an opening that closes the storage section that can be dropped by the opening and that allows the moving body to drop onto the first regulating plate from a storage section adjacent to the storage section that can be dropped. And a relative displacement recording device that records the relative displacement by a gap formed in the storage portion by dropping the moving body with relative displacement of the two members. After the two members are relatively displaced, the step of identifying the state of the gap formed in the movable body storage body as a record of the relative displacement in the relative displacement recording device, and based on the identified state of the gap, And a step of detecting a relative displacement between the two members.

  Due to the relative displacement of the two members, one moving body housed in the housing portion present at the position where the opening of the first restricting plate has moved falls, and the opening of the first restricting plate and the second restricting plate A gap is formed between the two. At this time, the moving body also falls from the storage part existing at the position before the opening of the first restricting plate moves and the position where the opening passes, and a gap is formed, but finally the first restricting plate Since the upper moving body falls on the first regulating plate when the opening of the second regulating plate passes through the storage part other than the position where the opening of the opening moves, the gap is closed by the moving body. Therefore, according to the relative displacement detection method as described above, the state of the gap formed between the first restricting plate and the second restricting plate due to the relative displacement of the two members is maintained even after the relative displacement is settled. Therefore, it is possible to specify the state of the gap after the relative displacement is settled, and reliably and easily detect the relative displacement generated between the two members based on the specified state of the gap. is there. Further, in the relative displacement detection method as described above, since there is nothing to be destroyed for detecting the relative displacement, it is possible to repeatedly use the relative displacement recording device, and it is possible to keep maintenance costs low. is there.

  In this relative displacement detection method, the relative displacement recording device can be displaced together with the second restricting plate, and one moving body can be accommodated in each of the accommodating portions above the second restricting plate. At least one third restriction plate having a plurality of openings arranged at intervals is provided, and each of the third restriction plates is located at a position facing the opening of the restriction plate positioned one below. It is desirable that a restricting part for restricting the falling of the moving body is provided, and an opening is provided next to the restricting part.

  According to such a relative displacement detection method, according to the relative displacement of the two members, first, when the opening of the first regulating plate is relatively moved by one storage portion and the opening is moved to the adjacent storage portion, The moving body between the first restricting plate and the second restricting plate of the adjacent storage unit falls to form a gap. At this time, since the opening of the second restricting plate moves to the upper part of the gap where the opening of the first restricting plate was located before the movement, the moving body falls to the original gap, and the gap is closed by the moving body. Instead, a gap is formed between the opening of the second restriction plate and the third restriction plate. Then, when the opening of the first restricting plate is relatively moved by one storage portion and the opening is further moved to the adjacent storage portion, the first restriction plate and the second restriction of the storage portion that is two adjacent from the first storage portion. A moving body between the plates falls to form a gap. At this time, since the opening of the second restriction plate and the opening of the third restriction plate move to the upper part of the gap where the opening of the first restriction plate and the opening of the second restriction plate were located before the movement, it was the original gap. The movable body falls to a position to close the gap, and instead, between the opening of the second restriction plate and the third restriction plate, and above and above the opening of the third restriction plate just above the second restriction plate. A gap is formed between the third regulating plate and the third regulating plate. As described above, when the opening of the first restricting plate is displaced by one storage portion due to the relative displacement of the two members, the position of the gap sequentially moves upward. Then, two relative displacement histories are recorded by the arrangement of the gaps. For this reason, it is possible to specify the state of the gap after the relative displacement is settled and to detect the history of the relative displacement based on the specified state of the gap.

In this relative displacement detection method, the moving body is a metal member, the storage portion is a non-metallic member, the storage portion, the first restriction plate, the second restriction plate, and the first An IC tag storing information on the unit storage portion is provided on an inner wall portion forming a unit storage portion capable of storing one moving body, which can be formed by three restriction plates, It is desirable to specify the state of the gap by reading information stored in the IC tag from the outside opposite to the inner wall portion where the IC tag is provided across a space in which the mobile body is stored.
According to such a relative displacement detection method, when there is a moving body between the reading device and the IC tag, the information of the IC tag cannot be read, and only the unit storage portion serving as the gap is IC. It is possible to read tag information. For this reason, since it is detected that the unit storage unit from which the information of the IC tag has been read is a gap, it is possible to easily identify the state of the gap.

In this relative displacement detection method, the information includes information for specifying which unit storage unit is formed in any of the plurality of storage units. It is desirable that it be included.
According to such a relative displacement detection method, it is possible to easily specify the number of gaps formed in each storage unit by reading the information of the IC tag.

In this relative displacement detection method, the information includes information for identifying which unit storage portion is located in the vertical direction in the storage portion. desirable.
According to such a relative displacement detection method, it is possible to easily specify the arrangement of the gaps formed in the movable body storage body.

In this relative displacement detection method, it is preferable that the storage portion is formed of a permeable member, and the gap is specified visually.
According to such a relative displacement detection method, since the gap is visually identified, it is possible to specify the state of the gap without using any device. For this reason, since a reading device or the like is not required, an inexpensive relative displacement recording device can be realized.

In this relative displacement detection method, the moving body is a metal member, the storage portion is a non-metal member, and the gap is specified using electromagnetic induction, electromagnetic wave radar, radiation, or the like. It is good as well.
According to such a relative displacement detection method, it is possible to specify the gap formed in the entire moving body storage body up to its arrangement at a time.

In this relative displacement detection method, before the two members are relatively displaced, the storage portion where the opening of the first restriction plate is located is used as a reference, and after the relative displacement, the reference is the most in the displacement direction. It is desirable to detect the maximum amount of displacement by a gap formed in the storage portion that is separated.
According to such a relative displacement detection method, since the position of the gap indicates that the two members are relatively displaced, the maximum displacement amount is accurately detected by the gap formed at the position farthest from the reference. It is possible.

In this relative displacement detection method, after the two members are relatively displaced, a residual displacement is detected based on a distance in the displacement direction between the storage portion where the opening of the first restriction plate is located and the reference. Is desirable.
According to such a relative displacement detection method, the storage portion in which the opening of the first restriction plate is positioned after the two members are relatively displaced indicates the result of the relative displacement of the two members. The residual displacement after the relative displacement of the two members can be detected by the distance between the storage portion where the opening of the first restricting plate is located after the relative displacement and the reference position.

In this relative displacement detection method, it is preferable that the accumulated displacement is detected based on the number of the gaps formed in the movable body storage body after the two members are relatively displaced.
According to such a relative displacement detection method, the number of gaps newly formed in the movable body storage body due to the relative displacement of the two members is equal to the number of times the two members have moved one storage portion in the displacement direction. Therefore, it is possible to easily detect the accumulated displacement based on the number of gaps formed in the movable body storage body after the two members are relatively displaced.

In this relative displacement detection method, it is preferable that the history of relative displacement is detected by the arrangement of the gap formed in the movable body storage body after the two members are relatively displaced.
According to such a relative displacement detection method, since the gaps formed in the movable body storage body after the two members are relatively displaced are arranged in the order in which the gaps are formed, the two members are relatively displaced. After that, it is possible to easily detect the history of relative displacement generated between the two members by the arrangement of the gaps formed in the moving body storage body.

  A relative displacement recording device provided between two members capable of relative displacement for detecting the relative displacement, wherein the device is displaced following one of the two members and is made of a plurality of metals. A moving body storage body in which a plurality of rows of non-metallic storage portions for guiding the moving body in the vertical direction are arranged in a vertical direction while the moving body is provided in a plurality of rows in the displacement direction of the two members. The movable body is displaced following the other of the members and is provided under the movable body storage body, and the mobile body stored in any one of the plurality of storage sections is moved away from the storage section. A first restricting plate that has an opening that allows it to fall and restricts dropping of the movable body stored in another storage portion; and is displaced together with the first restricting plate, and is disposed above the first restricting plate. The moving body is disposed at an interval that can accommodate the moving body, and the front A second portion having an opening that closes the storage portion that can be dropped by the opening and allows the moving body to fall on the first regulating plate from a storage portion adjacent to the storage portion that can be dropped. Displacement together with the restriction plate and the second restriction plate, and is disposed above the second restriction plate with a space capable of accommodating one moving body in each of the storage portions, and has at least a plurality of openings. A third restricting plate, and each of the third restricting plates has a restricting portion for restricting the moving body from being dropped at a position facing the opening of the restricting plate located one below. A unit capable of storing one moving body, which is provided and has an opening next to the restricting portion and can be formed by the storage portion and the first restricting plate, the second restricting plate, and the third restricting plate. An IC tag in which information of the unit storage portion is stored on the inner wall forming the storage portion It has been kicked is a relative displacement recording apparatus characterized.

 According to such a relative displacement recording apparatus, according to the relative displacement of the two members, first, when the opening of the first restricting plate is relatively moved by one storing portion and the opening moves to the next, the next storing is performed. The moving body between the first restriction plate and the second restriction plate falls to form a gap. At this time, since the opening of the second restriction plate moves to the upper part of the gap where the opening of the first restriction plate was located before the movement, the moving body falls to the position of the original gap and the gap is closed, Instead, a gap is formed between the opening of the second restriction plate and the third restriction plate. When the opening of the first restricting plate further moves relative to one storage portion, the moving body between the first restricting plate and the second restricting plate adjacent to the first storage portion falls. A gap is formed. At this time, since the opening of the second restriction plate and the opening of the third restriction plate move to the upper part of the gap where the opening of the first restriction plate and the opening of the second restriction plate were located before the movement, it was the original gap. The movable body falls to the position and the gap is closed. Instead, the second restriction plate is opened between the opening of the second restriction plate and the third restriction plate immediately above the second restriction plate, and immediately above the second restriction plate. A gap is formed between the opening of the three regulating plates and the third regulating plate thereon. Thus, when the opening of the first restricting plate is displaced by one storage portion due to the relative displacement of the two members, the position of the gap sequentially moves upward, and the history of the two relative displacements is recorded by the arrangement of the gap. Will be. When the information of the IC tag is read, if there is a moving body in front of the IC tag, the information of the IC tag cannot be read, and the unit storage unit that does not exist and forms a gap Only IC tag information can be read. For this reason, since it is detected that the unit storage section from which the information of the IC tag can be read is a gap, it is possible to easily specify the state of the gap after the relative displacement is settled. Therefore, it is possible to detect relative displacement reliably and easily. Moreover, since there is nothing to destroy the relative displacement recording apparatus as described above in order to detect the relative displacement, it can be used repeatedly and the maintenance cost can be reduced.

  As is clear from the above explanation, the relative displacement detection method and the relative displacement recording apparatus according to the present invention can be used repeatedly, can keep maintenance costs low, and after experiencing earthquakes and strong winds. It is possible to provide a relative displacement detection method and a relative displacement recording apparatus capable of detecting the displacement.

  Hereinafter, embodiments of the present invention shown in the drawings will be described.

  1 to 10 show a first embodiment of a relative displacement recording apparatus according to the present invention. FIG. 1 is a schematic front view showing the whole, FIG. 2 is a side view of FIG. 1, and FIG. FIG. 4 is a schematic diagram showing an example attached to a structure, FIG. 4 is a schematic diagram showing another example attached to the structure, FIG. 5 is an explanatory diagram showing the relationship between relative displacement and time, and FIGS. It is explanatory drawing shown.

  As shown in FIGS. 1 to 3, the relative displacement recording apparatus 10 according to the first embodiment is provided between the upper floor 2 and the lower floor 4 as two members in a structure 1 such as a building that can be relatively displaced in the horizontal direction. Which is used to detect a relative displacement in the horizontal direction as a displacement direction generated between the upper floor 2 and the lower floor 4, of the upper floor 2 or the lower floor 4 of the structure 1. The movable body regulating member 30 attached to either one (upper floor 2 in this embodiment) and the other of lower floor 4 or upper floor 2 (lower floor 4 in this embodiment). And a non-metallic (for example, resin) storage casing 13.

  The relative displacement recording device 10 may be provided between the upper floor 2 and the lower floor 4 of the structure 1 in an exposed state, or as shown in FIGS. 1 to 3, the upper floor 2 and the lower floor 4. You may comprise so that it may shield with walls 7, such as a partition wall provided in between. As shown in FIG. 4, you may provide in the location where the damper 6 provided in order to absorb vibration energy between the upper floor 2 and the lower floor 4 of the structure 1 is interposed.

  As shown in FIGS. 1 and 2, the storage casing 13 includes a plurality of (four in the present embodiment) storage portions 16, 17, and 18 each having a predetermined length and diameter and having a tube shape. , 19 is a movable body storage body 12 arranged in a line in a horizontal direction that is a displacement direction so that each storage section 16, 17, 18, 19 is directed in the vertical direction, and four storage sections 16, 17, 18, 19 is provided with a moving body receiving portion 23 for receiving and storing the iron ball 20 falling from the lower end opening portion of 19. In the following description, the leftmost storage part in FIG. 1 is the 0th storage part 16, the second storage part from the left is the first storage part 17, and the third storage part from the left is the second storage part. The storage unit 18 and the storage unit located on the rightmost side are referred to as a third storage unit 19. The moving body receiving portion 23 does not need to be closed, and a part of the bottom portion may be open. Moreover, it is good also as a structure which is not equipped with the mobile body receiving part 23. FIG.

  In each of the storage units 16, 17, 18, and 19, iron balls 20 as metal moving bodies that are slightly smaller than the inner diameters of the storage units 16, 17, 18, and 19 are stored in a line in the vertical direction. Although possible, since the lower ends of the storage portions 16, 17, 18, 19 are open, the state in which the iron ball 20 is stored is not maintained in the state of the storage casing 13 alone. Since the movable body storage body 12 and the storage portions 16, 17, 18, and 19 of the present embodiment are formed of a resin that does not transmit light, the internal state of the iron ball 20 and the like cannot be visually observed. Has been. In addition, you may comprise the mobile body storage body 12 by five or more storage parts or three or less storage parts.

  The four storage parts 16, 17, 18, 19 and the mobile body receiving part 23 of the mobile body storage body 12 are integrally formed in the storage casing 13, and, as shown in FIG. And fixed to a mounting portion 5 protruding from the lower floor 4 of the structure 1. For this reason, when the upper floor 2 and the lower floor 4 of the structure 1 are relatively displaced, the movable body storage body 12 is displaced following the lower floor 4 of the structure 1.

  The moving body regulating member 30 houses a U-shaped housing 31 whose lower side is opened, a first regulating plate 32 that closes a lower end opening of the housing 31, and one iron ball 20 above the first regulating plate 32. The second restricting plate 34 disposed at a possible interval, and above the second restricting plate 34, with an interval at which one iron ball 20 can be accommodated in each of the accommodating portions 16, 17, 18, 19. It has the 4th 3rd control board 50 arrange | positioned. Here, for convenience of explanation, the four third restriction plates 50 are the third restriction plate 50 provided at the bottom as the lower third restriction plate 50a, and the third restriction plate 50 provided at the second position from the bottom as the middle. The third restriction plate 50b, the third restriction plate 50 provided third from the bottom is the upper third restriction plate 50c, and the uppermost third restriction plate 50 is the uppermost third restriction plate 50d.

  The first restricting plate 32 has an opening 33 through which the iron ball 20 stored in any one of the four storage portions 16, 17, 18, 19 can be dropped. And restricts dropping of the iron balls 20 stored in the other storage units 16, 17, 18, and 19. In the example of FIG. 1, the opening 33 is located at the lower end of the 0th storage portion 16, and the lower ends of the first to third storage portions 17, 18, 19 are closed by the first restriction plate 32.

  The second restricting plate 34 includes a closing portion 36 as a restricting portion that closes the accommodating portions 16, 17, 18, 19 that can be dropped from the opening 33 of the first restricting plate 32, and the accommodating portion 16 that can be dropped. 17, 17, 19, and an opening 35 through which the iron ball 20 can be dropped from the storage portions 16, 17, 18, 19 adjacent to the first restriction plate 32 into a gap. The openings 35 are provided on both sides of the closing portion 36 so that the iron ball 20 falls into the gap regardless of whether the gap moves to the left or right due to the relative displacement between the movable body regulating member 30 and the movable body storage body 12. ing. In the example of FIG. 1, the closing portion 36 is located in the 0th storage portion 16 where the opening 33 of the first regulating plate 32 is located, and the openings 35 are provided on both sides in the left-right direction of the closing portion 36.

  The lower third restriction plate 50a includes a closing portion 52 that closes the storage portions 16, 17, 18, 19 that can be dropped from the opening 35 of the second restriction plate 34, and a storage portion 16, 17, that can be dropped. 18 and 19, and an opening 51 capable of dropping the iron ball 20 into the gap on the second regulating plate 34 from the storage portions 16, 17, 18, 19 adjacent to the storage portion 16. In the example of FIG. 1, the closing portion 52 is positioned on the left side of the 0th storage portion 16 where the opening 35 of the second restriction plate 34 is located and the first storage portion 17, and the opening 51 is formed on both sides in the left-right direction of the closing portion 52. Are provided. The middle third restriction plate 50b, the upper third restriction plate 50c, and the uppermost third restriction plate 50d are closed above the openings 51, 53, and 55 of the third restriction plates 50a, 50b, and 50c, respectively. Portions 54, 56, and 58 are provided, and openings 53, 55, and 57 are provided on both sides of each closing portion 54, 56, and 58, respectively. As described above, the third restriction plates 50a, 50b, 50c, and 50d are each provided with a restriction plate (for example, the second restriction plate 34 for the lower third restriction plate 50a and the middle third restriction plate 50b). Closed portions 52, 54, 56, 58 that restrict the dropping of the iron ball 20 are provided at positions facing the openings 35, 51, 53, 55 of the lower third restriction plate 50 a). , 56, 58 are provided with openings 51, 53, 55, 57 on both sides.

  The moving body storage body 12 is disposed inside the housing 31 of the moving body restriction member 30, and the first restriction plate 32, the second restriction plate 34, and the third restriction plate 50 are disposed in a plurality of slits 14 provided in the storage casing 13. Is slidably inserted, and the storage casing 13, the mobile body storage body 12, and the mobile body regulating member 30 are assembled so as to be relatively movable in the horizontal direction. In the following description, each of the storage portions 16, 17, 18, 19, the first restriction plate 32, the second restriction plate 34, and the four third restriction plates 50a, 50b, 50c, and 50d may be formed. A space in which one iron ball 20 can be stored is referred to as a unit storage unit S. At this time, the unit storage portion S may not be completely partitioned by the openings 33, 35, 51, 53, 55, and 57. Here, it is assumed that the openings 33, 35, 51, 53, 55, and 57 are also closed. Thus, the unit storage portion S is defined. That is, in FIG. 1, four unit storage portions S are formed in the displacement direction and five in the vertical direction. When each unit storage portion S is shown individually, the unit storage portion S formed between the first restriction plate 32 and the second restriction plate 34 is moved from the left to S01, S11, S21, S31, the second restriction plate. The unit storage part S formed between the lower 34 and the lower third restriction plate 50a is referred to as a unit storage part from the left as S02, S12, S22, S32.

  An IC tag 21 is provided on either side of a direction orthogonal to the displacement direction on the inner wall 30a of each of the storage portions 16, 17, 18, and 19 forming each unit storage portion S. Here, the IC tag 21 refers to an IC chip with an antenna. The IC tag 21 stores information for specifying each unit storage portion S. For example, the IC tag 21 of the unit storage unit S01 stores “0” as information for specifying the storage unit 16 and “1” as information for specifying the lowest level in the vertical direction. The IC tag 21 of the part S22 stores “2” as information for specifying the storage unit 18 and “2” as information for specifying the second level from the bottom in the vertical direction.

  As shown in FIG. 3, the moving body regulating member 30 has a housing 31 integrally fixed to a mounting portion 3 protruding downward from the upper floor 2 of the structure 1 by bolts or the like. For this reason, when the upper floor 2 and the lower floor 4 of the structure 1 are relatively displaced, the moving body regulating member 30 is displaced following the upper floor 2 of the structure 1.

  The moving body regulating member 30 and the housing casing 13 having the moving body housing body 12 include the housing 31, the housing casing 13, The horizontal relative position is set, and in this state, it is attached to the upper floor 2 or the lower floor 4 of the structure 1, respectively, and follows the relative displacement in the horizontal direction between the upper floor 2 and the lower floor 4 of the structure 1. And it is comprised so that it may displace relatively in a horizontal direction.

  Next, the operation of the relative displacement recording apparatus 10 configured as described above and the relative displacement detection method will be described with reference to FIGS. 1 and 6 to 10.

  In a stationary state after the relative displacement recording device 10 is installed, as shown in FIG. 6, the housing casing 13 is located at the center of the housing 31 of the moving body regulating member 30, and the opening 33 of the first regulating plate 32 is formed. It is located in the 0th storage part 16. The lower end openings of the first storage unit 17, the second storage unit 18, and the third storage unit 19 are closed by the first restriction plate 32. At this time, a gap is formed in the lowermost unit storage portion S01 of the 0th storage portion 16, and unit storage portions S11, S21 of the first storage portion 17, the second storage portion 18, and the third storage portion 19 are formed. The iron balls 20 are accommodated in S31.

  When an external force such as an earthquake is input to the structure 1 and a relative displacement in the horizontal direction occurs between the upper floor 2 and the lower floor 4 of the structure 1, both attachment portions 3 follow the displacement. 5, the movable body storage body 12 and the movable body regulating member 30 are relatively displaced in the horizontal direction.

  For example, a case where relative displacement as shown in FIG. 5 occurs will be described. First, assuming the case of displacement from the position “0” to the position “1” in FIG. 5 with reference to the stationary state (state in FIG. 6), as shown in FIG. Accordingly, the opening 33 moves below the first storage portion 17. As a result of this movement, the iron ball 20 stored in the unit storage portion S11 of the first storage portion 17 passes through the opening 33 and falls and is stored in the moving body receiving portion 23. At this time, since the first restricting plate 32 and the second restricting plate 34 are integrally moved in the horizontal direction, the closing portion 36 of the second restricting plate 34 is moved to the first accommodating portion 17 to store the unit. In order to block the upper part of the part S11, the drop of the iron ball 20 of the first storage part 17 onto the first restriction plate 32 is restricted, and a gap is formed in the unit storage part S11.

  Further, the opening 35 of the second restricting plate 34 moves to the 0th storage portion 16 and the second storage portion 18. At this time, since a gap is formed in the unit storage portion S01 of the 0th storage portion 16, the iron ball 20 stored in the unit storage portion S02 passes through the opening 35 and falls onto the first regulating plate 32. To do. Therefore, a gap is formed between the unit storage portion S02 and the unit storage portion S11 due to the displacement from the displacement “0” to the position “1” in FIG.

  Next, assuming a case of displacement from the displacement “1” to the position “2” in FIG. 5, the opening 33 is formed in the second storage portion 18 by the horizontal movement of the first restriction plate 32 as shown in FIG. 8. Move down. By this movement, the iron ball 20 stored in the unit storage portion S21 of the second storage portion 18 passes through the opening 33 and falls and is stored in the moving body receiving portion 23. At this time, since the first restricting plate 32 and the second restricting plate 34 are integrally moved in the horizontal direction, the closing portion 36 of the second restricting plate 34 is moved to the second storage portion 18 to store the unit. In order to block the upper part of the part S21, the drop of the iron ball 20 stored in the unit storage part S22 onto the first regulating plate 32 is restricted, and a gap is formed in the unit storage part S21.

  Further, the opening 35 of the second restriction plate 34 moves to the first storage portion 17 and the third storage portion 19. At this time, since the lower third restriction plate 50a is also moved in the horizontal direction integrally with the first restriction plate 32 and the second restriction plate 34, the opening 51 of the lower third restriction plate 50a is in the 0th storage portion 16. And move to the second storage unit 18. Since a gap is formed in the unit storage portion S11 of the first storage portion 17, the iron ball 20 stored in the unit storage portion S12 passes through the opening 35 and falls onto the first regulation plate 32. . Further, since a gap is also formed in the unit storage portion S02 of the 0th storage portion 16, the iron ball 20 stored in the unit storage portion S03 passes through the opening 51 and falls onto the second restriction plate 34. . Therefore, a gap is formed in the unit storage portion S21, the unit storage portion S12, and the unit storage portion S03 due to the displacement from the displacement “1” to the position “2” in FIG.

  Next, assuming a case where the displacement is moved from the position “2” to the position “3” in FIG. 5, as shown in FIG. 9, the opening 33 is formed in the third storage portion 19 by the horizontal movement of the first restriction plate 32. Move down. Due to this movement, the iron ball 20 stored in the unit storage portion S31 of the third storage portion 19 passes through the opening 33 and falls into the moving body receiving portion 23 and is stored. At this time, since the first restricting plate 32 and the second restricting plate 34 are integrally moved in the horizontal direction, the closing portion 36 of the second restricting plate 34 is moved to the third storage portion 19 to store the unit. In order to block the upper part of the part S31, the drop of the iron ball 20 stored in the unit storage part S32 onto the first regulating plate 32 is restricted, and a gap is formed in the unit storage part S31.

  Further, the opening 35 of the second restricting plate 34 moves to the second storage portion 18 and the right side of the third storage portion 19. At this time, since the lower third restriction plate 50a and the middle third restriction plate 50b are also moved in the horizontal direction together with the first restriction plate 32 and the second restriction plate 34, the opening of the lower third restriction plate 50a. 51 moves to the first storage part 17 and the third storage part 19, and the opening 53 of the middle third restriction plate 50 b moves to the 0th storage part 16 and the second storage part 18. Since a gap is formed in the unit storage portion S21 of the second storage portion 18, the iron ball 20 stored in the unit storage portion S22 passes through the opening 35 and falls onto the first regulation plate 32. . Further, since a gap is formed also in the unit storage portion S03 of the 0th storage portion 16 and the unit storage portion S12 of the first storage portion 17, the iron ball 20 stored in the unit storage portion S04 is opened 53. And the iron ball 20 stored in the unit storage portion S13 passes through the opening 51 and drops onto the second restriction plate 34. Therefore, a gap is formed in the unit storage section S04, the unit storage section S13, the unit storage section S22, and the unit storage section S31 due to the displacement from the displacement “2” to the position “3” in FIG.

  Next, assuming a case where the displacement is displaced from the position “3” to the position “2” in FIG. 5, the opening 33 is formed by the horizontal movement of the first restricting plate 32 as shown in FIG. 10. Move down. By this movement, the iron ball 20 stored in the unit storage portion S21 of the second storage portion 18 passes through the opening 33 and falls and is stored in the moving body receiving portion 23. At this time, since the first restricting plate 32 and the second restricting plate 34 are integrally moved in the horizontal direction, the closing portion 36 of the second restricting plate 34 is moved to the second storage portion 18 to store the unit. In order to block the upper part of the part S21, the drop of the iron ball 20 stored in the unit storage part S22 onto the first regulating plate 32 is restricted, and a gap is formed in the unit storage part S21.

  The opening 35 of the second restricting plate 34 moves to the first storage part 17 and the third storage part 19. At this time, the lower third restriction plate 50a, the middle third restriction plate 50b, and the upper third restriction plate 50c are also moved in the horizontal direction integrally with the first restriction plate 32 and the second restriction plate 34. The opening 51 of the third restriction plate 50a moves to the 0th storage part 16 and the second storage part 18, and the opening 53 of the middle third restriction plate 50b moves to the first storage part 17 and the third storage part 19. The opening 55 of the upper third restriction plate 50 c moves to the 0th storage portion 16 and the second storage portion 18. Then, since a gap is formed in the unit storage portion S31 of the third storage portion 19, the iron ball 20 stored in the unit storage portion S32 passes through the opening 35 and falls onto the first regulation plate 32. . Furthermore, the unit storage part S04 of the 0th storage part 16, the unit storage part S13 of the first storage part 17, the unit storage part S22 of the second storage part 18, and the unit storage part S31 of the third storage part 19 are Since the gap is formed, the iron ball 20 stored in the unit storage portion S05 passes through the opening 55 and falls onto the middle third restriction plate 50b, and the iron ball 20 stored in the unit storage portion S14. Passes through the opening 53 and falls onto the lower third regulating plate 50a, and the iron ball 20 housed in the unit housing portion S23 falls through the opening 51 onto the second regulating plate 34, and the unit housing portion. The iron ball 20 stored in S32 passes through the opening 35 and falls onto the first restriction plate 32. Therefore, a gap is formed in the unit storage portion S21, the unit storage portion S32, the unit storage portion S23, the unit storage portion S14, and the unit storage portion S05 due to the displacement from the displacement “3” to the position “2” in FIG. Is done. After that, if the external force continues to be input, the above operation is continued, and if the external force is no longer input, the state where the gap is left is maintained and the operation is stopped.

  In this way, the first restriction plate 32, the second restriction plate 34, and the third restriction plate 50 cooperate in accordance with the horizontal relative displacement between the movable body storage body 12 and the movable body restriction member 30. As a result, the iron ball 20 drops from any of the storage portions 16, 17, 18, 19 of the mobile body storage body 12, thereby forming a gap corresponding to the relative displacement in the mobile body storage body 12.

  Then, after the earthquake that causes the relative displacement is settled, the relative displacement recording device 10 specifies the state of the gap formed in the movable body storage body 12 as a record of the relative displacement. When specifying the state of the gap, from the outside opposite to the inner wall portion 30a where the IC tag 21 is provided with the unit storage portion S as a space for storing the iron ball 20 of the moving body storage body 12 being inserted, A reading device 40 for reading information stored in the tag 21 is brought close to the tag 21. At this time, in the unit storage portion S where the iron ball 20 exists, the iron ball 20 is interposed between the IC tag 21 and the reading device 40 and shielded even if the reading device 40 is close to the IC tag. 21 information cannot be read. On the other hand, when the reading device 40 is brought close to the unit storage portion S where the iron ball 20 is dropped and a gap is formed, the information on the IC tag 21 can be read because it is not shielded. For this reason, it is possible to specify the state of the gap based on the read information of the IC tag 21.

  Then, by processing the information read by the reading device 40 with the personal computer 45 or the like, it is possible to detect the relative displacement (cumulative displacement, maximum displacement, residual displacement, and history of relative displacement) of the structure 1. is there. Examples of the reading device 40 include a portable information terminal (PDA, mobile phone, etc.) equipped with an IC tag reading function, a dedicated handy terminal, etc., but are not limited to these, and reads information on the IC tag 21. Anything can be used.

For example, the cumulative displacement (Dc) is obtained based on the total number of gaps in the specified moving body storage body 12. Specifically, from the number of gaps newly formed by the relative displacement of the structure 1 (total number of gaps −1), that is, from the total number of gaps specified after the relative displacement of the structure 1, from before the relative displacement. Based on the number excluding the number of existing gaps “1”, the following equation (1) is used. Here, d is a reference displacement amount, corresponding to d in FIG. 1, and n is the number of newly formed gaps (total number of gaps −1).
Cumulative displacement: Dc = n × d (1)
In this case, it is not particularly necessary to distinguish the storage units (0, 1, 2, 3,...).

Further, the maximum displacement (Dm) is the number of the storage unit in which the gap farthest from the reference position set in the stationary state is formed from the reference position among the specified gaps of the mobile body storage body 12 ( Nm), it is obtained by specifying whether it is a storage part, and is obtained by the following equation (2).
Maximum displacement: Dm = Nm × d (2)

Further, the residual displacement (Dr) specifies the number (Nr) of the storage part from the reference position that is the storage part formed by the last drop of the iron ball 20 from the mobile body storage body 12. It is calculated | required by the following formula | equation (3). Finally, the gap formed by dropping the iron ball 20 is formed on the first regulating plate 32.
Residual displacement: Dr = Nr × d (3)

  FIG. 11 shows the damper 6 interposed between the upper floor 2 and the lower floor 4 of the structure 1 in which the relative displacement-time relationship in FIG. 5 is changed to the load-relative displacement relationship of the damper 6. is there. Since the amount of energy absorbed by multiplying the calculated cumulative displacement (Dc) by the load (P0) can be detected from FIG. 11, for example, between the upper floor 2 and the lower floor 4 of the structure 1 This is effective for managing the state of the damper 6 interposed between the two.

  The history of relative displacement is based on the information for identifying the storage unit and the information for identifying the position in the vertical direction among the read information of the IC tag 21, and the horizontal axis indicates the number of times the iron ball 20 has been dropped. From the graph generated by plotting the information for specifying the vertical position on the graph with the vertical axis as the displacement, the number of drops of the iron ball 20 and the information for specifying the storage unit as the displacement A history of relative displacement is detected. At this time, if the scale of the displacement (vertical axis) is the reference displacement amount d, the displacement amount can also be detected.

  According to the relative displacement recording device 10 and the relative displacement detection method of the present embodiment, the distance d corresponding to the opening 33 of the first restriction plate 32 corresponding to one storage portion due to the relative displacement between the upper floor 2 and the lower floor 4. When the gap is displaced only, the position of the gap sequentially moves upward and the existence of the gap is maintained, so that the relative displacement between the upper floor 2 and the lower floor 4 can be recorded as a result of the arrangement of the gap. The relative displacement recording apparatus 10 of this embodiment is provided with an IC tag 21 on the inner wall 30a of each unit storage section S, and each storage section 16, 17, 18, 19 is made of a resin that does not transmit light, Since the iron ball 20 is configured to be movable, when the iron ball 20 exists between the reading device 40 and the IC tag 21, the information of the IC tag 21 cannot be read. In the case where a gap is formed by dropping, it is possible to read information of the IC tag 21 of the unit storage portion S that is the gap. For this reason, since it is detected that the unit storage portion S from which the information of the IC tag 21 has been read is a gap, it is possible to easily specify the state of the gap after the relative displacement is settled.

  In addition, the IC tag 21 includes information for specifying which storage unit 16, 17, 18, 19 each unit storage unit S is formed in, and each storage unit 16, 17, 18, 19 Since information for specifying which unit storage portion S is located in the vertical direction is included, the mobile body storage body 12 is read without destroying the relative displacement recording device 10 by reading the information of the IC tag 21. It is possible to easily specify the arrangement of the gaps formed in (1). In addition, it is possible to easily detect the history of relative displacement in addition to the accumulated displacement, maximum displacement, and residual displacement from the arrangement of the gaps formed in each specified storage portion.

  Further, there is no portion where the relative displacement recording device 10 is destroyed when the relative displacement is performed, and it is possible to specify the gap formed in the movable body storage body 12 without destroying the relative displacement recording device 10. Therefore, the relative displacement recording apparatus 10 can be used repeatedly, and maintenance costs can be reduced.

  In the present embodiment, the IC tag 21 has information for identifying which storage unit 16, 17, 18, 19 each unit storage unit S is formed in, and each storage unit 16, 17, 18. , 19 includes information for specifying which unit storage portion S is located in the vertical direction, but the information stored in the IC tag 21 is stored in each unit storage portion S. It may be only information for specifying which storage unit 16, 17, 18, 19 is formed. In this case, at least the cumulative displacement and the maximum displacement can be detected.

  In the said embodiment, although the example which provided the IC tag 21 in the inner wall part 30a of each unit storage part S was demonstrated, IC tag 21 is not necessarily required, for example, after the relative displacement is settled, an electromagnetic induction method, The gap formed in the movable body storage body 12 may be specified by relative displacement by a method used for nondestructive inspection such as an electromagnetic wave laser method and a radiation method.

  Furthermore, in the said embodiment, although each accommodating part 16, 17, 18, 19 and the accommodation casing 13 were demonstrated with the member which does not permeate | transmit light, each accommodating part 16, 17, 18, 19, and When the storage casing 13 is formed of a transparent or translucent member, for example, the gap state of the moving body storage body 12 or the shadow of the projected iron ball 20 is visually identified. Is possible. In this case, the moving body need not be a metal member such as an iron ball.

  In the description of the above embodiment, the case where the displacement in the right direction is detected has been described. However, in the case where the displacement in the left direction is detected, the relative displacement recording apparatus 10 described above is configured to be bilaterally symmetric. A relative displacement recording device (not shown) may be provided.

  Further, when detecting the displacement in both the left and right directions, the above-described relative displacement recording devices 10 may be provided as a pair of left and right, and the displacement in both the left and right directions may be detected by both the relative displacement recording devices.

Further, when detecting both the left and right displacements, the relative displacement recording apparatus 10 may be configured as shown in FIG. That is, the right side portion of the movable body storage body 12 is configured by the 0th storage portion 16, the first storage portion 17, the second storage portion 18, and the third storage portion 19 in the same manner as the relative displacement recording device 10 described above. The left side portion is constituted by the -1 storage portion 17a, the -2 storage portion 18a, and the -3 storage portion 19a, and a gap is specified for each unit storage portion S of the -3 storage portion 19a to the third storage portion 19 It is good also as a structure which provided the IC tag 21 which memorize | stored the information for doing. The displacement in the left and right directions can be detected by the relative displacement recording apparatus 10 having such a configuration.

  In the above-described embodiment, the third restriction plate has been described with respect to the example in which the closing portion is provided at a position facing the opening of the restriction plate located one position below and the opening is provided on both sides of the closing portion. The number of openings is not limited to this. For example, the number of openings to be provided in the third regulating plate can be easily calculated by using the following relational expression.

The absolute value of the maximum value of the row number of the storage part of the mobile body storage part 12 is Na, the number of restriction plates is Nd, and the number of openings of the target i-th restriction plate (i-th restriction plate from the bottom) is No ( i) and Nd ≧ 2,
When i = 1 to Nd,
When i ≦ Na−1, No (i) = i
When i ≧ Na and i = Na + 2 × m, No (i) = Na
When i ≧ Na and i = Na + 2 × m + 1, No (i) = Na + 1
(Where m = 0, 1, 2, ...)
It becomes.

For example, a relative displacement recording apparatus (Na = 3, Nd = 6) having six restriction plates (four for the third restriction plate) and having an absolute value of the maximum value of the column number of the storage unit being “3”. The number of openings to be provided in
In i = 1 to Nd (= 6),
i = 1 No (1) = 1
i = 2 No (2) = 2
i = 3 No (3) = 3 (= Na)
i = 4 No (4) = 4 (= Na + 1)
i = 5 No (5) = 3 (= Na)
i = 6 No (6) = 4 (= Na + 1)
It becomes. When an opening is formed based on the calculation result, a relative displacement recording apparatus as shown in FIG. 13 is obtained.

  Moreover, the said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

1 is a schematic front view showing an entire relative displacement recording apparatus according to the present invention. It is a side view of FIG. It is explanatory drawing which shows the state which attached the relative displacement recording device of FIG. 1 between the upper floor and lower floor of a structure. It is explanatory drawing which shows the modification of an attachment state. It is explanatory drawing which shows the relationship between relative displacement and time. It is explanatory drawing which shows the stationary state of the relative displacement recording device shown in FIG. It is explanatory drawing which showed operation | movement of the relative displacement recording device shown in FIG. 1, Comprising: It is explanatory drawing which showed the state when displaced from a stationary state to the position of "1" of FIG. It is explanatory drawing which showed the state when it displaced from the position of "1" of FIG. 5 to the position of "2". It is explanatory drawing which showed the state when it displaced from the position of "2" of FIG. 5 to the position of "3". It is explanatory drawing which showed the state when it displaced from the position of "3" of FIG. For example, with respect to the damper 6 interposed between the upper floor 2 and the lower floor 4 of the structure 1, the relative displacement-time relationship in FIG. 5 is corrected to the load-relative displacement relationship of the damper 6. It is the schematic front view which showed the modification of the relative displacement recording device by this invention. It is a figure which shows an example of the relative displacement recording device in which the opening was formed based on the calculation result.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Structure, 2 Upper floor, 4 Lower floor, 10 Relative displacement recording device, 12 Mobile body storage body,
13 storage casing, 16 0th storage section, 17 first storage section, 18 second storage section,
19 3rd storage part, 20 Iron ball, 21 IC tag, 30 Moving body control member,
31 housing, 32 first restricting plate, 34 second restricting plate, 36 closing portion,
40 reading device, 45 personal computer, 50 third restriction plate,
50a Lower third restriction plate, 50b Middle third restriction plate, 50c Upper third restriction plate,
S unit storage

Claims (12)

A relative displacement detection method for detecting a relative displacement between two members,
A plurality of storage portions that guide and move the moving body downward while arranging a plurality of moving bodies arranged in a line in the vertical direction while being displaced following one of the two members are arranged in the displacement direction of the two members. A movable body storage body provided in a row;
The displacement following the other of the two members is displaced, and the movable body provided below the movable body storage body and stored in any one of the plurality of storage sections is A first restricting plate that has an opening that allows the moving body to be dropped from the storage portion and restricts the falling of the moving body stored in another storage portion;
Displaced together with the first restricting plate, arranged at an interval above which the one moving body can be accommodated above the first restricting plate, closes the accommodating portion that can be dropped by the opening, and can be dropped A second restricting plate having an opening that allows the moving body to fall on the first restricting plate from the accommodating portion adjacent to the accommodating portion.
Using a relative displacement recording device that records the relative displacement by a gap formed in the storage portion by dropping the moving body with relative displacement of the two members,
Specifying the state of the gap formed in the movable body storage body as a record of the relative displacement in the relative displacement recording device after the two members are relatively displaced;
Detecting a relative displacement between the two members based on the identified state of the gap;
A relative displacement detection method comprising: The relative displacement detection method according to claim 1,
The relative displacement recording device is displaced together with the second restricting plate, and is disposed above the second restricting plate with an interval at which one moving body can be housed in each of the housing portions. At least one third regulating plate having an opening is provided;
Each of the third restricting plates is provided with a restricting portion for restricting the moving body from dropping at a position facing the opening of the restricting plate located one below, and an opening is provided next to the restricting portion. A relative displacement detection method characterized by comprising: The relative displacement detection method according to claim 1 or 2,
The moving body is a metal member, and the storage portion is a non-metallic member,
The unit storage portion may be formed on an inner wall portion forming a unit storage portion capable of storing one moving body, which may be formed by the storage portion, the first restriction plate, the second restriction plate, and the third restriction plate. An IC tag storing information on the
The state of the gap is specified by reading the information stored in the IC tag from the outside opposite to the inner wall portion where the IC tag is provided across the space in which the moving body of the storage portion is stored. And a relative displacement detection method. The relative displacement detection method according to claim 3,
The information includes information for identifying whether each of the unit storage units is the unit storage unit formed in any of the plurality of storage units. Relative displacement detection method. The relative displacement detection method according to claim 3 or 4, wherein:
The relative displacement detection method according to claim 1, wherein the information includes information for specifying which of the unit storage units is located in the vertical direction in the storage unit. The relative displacement detection method according to claim 1 or 2,
The storage portion is formed of a permeable member,
The relative displacement detection method, wherein the gap is visually identified. The relative displacement detection method according to claim 1 or 2,
The moving body is a metal member, and the storage portion is a non-metallic member,
2. The relative displacement detection method according to claim 1, wherein the gap is specified using electromagnetic induction, electromagnetic wave radar, radiation, or the like. A relative displacement detection method according to any one of claims 1 to 7,
Before the two members are relatively displaced, the storage portion where the opening of the first restriction plate is located is used as a reference, and after the relative displacement, the storage portion is formed farthest from the reference in the displacement direction. A relative displacement detection method, wherein a maximum displacement is detected by a gap. The relative displacement detection method according to claim 8,
A relative displacement detection method, comprising: detecting a residual displacement based on a distance in the displacement direction between the storage portion where the opening of the first restriction plate is positioned and the reference after the two members are relatively displaced. A relative displacement detection method according to any one of claims 1 to 9,
A relative displacement detection method, comprising: detecting a cumulative displacement based on the number of the gaps formed in the movable body storage body after the two members are relatively displaced. A relative displacement detection method according to any one of claims 1 to 10,
A relative displacement detection method, wherein after the two members are relatively displaced, a history of the relative displacement is detected by an arrangement of the gap formed in the movable body storage body. A relative displacement recording device provided between two members capable of relative displacement for recording the relative displacement,
The non-metallic storage section that displaces following one of the two members and guides the moving body downward while storing a plurality of metallic moving bodies in a line in the vertical direction. A movable body storage body provided in a plurality of rows in the displacement direction of one member;
The displacement following the other of the two members is displaced, and the movable body provided below the movable body storage body and stored in any one of the plurality of storage sections is A first restricting plate that has an opening that allows the moving body to be dropped from the storage portion and restricts the falling of the moving body stored in another storage portion;
Displaced together with the first restricting plate, arranged at an interval above which the one moving body can be accommodated above the first restricting plate, closes the accommodating portion that can be dropped by the opening, and can be dropped A second restricting plate having an opening that allows the moving body to fall on the first restricting plate from the accommodating portion adjacent to the accommodating portion which has become;
Displaced together with the second restricting plate, and disposed above the second restricting plate with an interval capable of accommodating one moving body in each accommodating portion, and having at least one first opening having a plurality of openings. 3 restriction plates,
Have
Each of the third restricting plates is provided with a restricting portion for restricting the moving body from dropping at a position facing the opening of the restricting plate located one below, and an opening is provided next to the restricting portion. ,
An inner wall portion that forms a unit storage portion that can store one moving body, which can be formed by the storage portion, and the first restriction plate, the second restriction plate, and the third restriction plate. A relative displacement recording apparatus comprising an IC tag in which information is stored.

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