JP2014222204A - Seismic isolation effect monitoring method of seismic isolation building, and monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seismic isolation effect monitoring method which can determine a status of a seismic isolation operation of a seismic isolation device after determining that a factor of a load acting on a building is an earthquake, and does not cause damage to sensors even at the application of a large load of the earthquake or the like, and a monitoring device.SOLUTION: A seismic isolation effect monitoring method uses an acceleration sensor which measures the vibration of a building main body placed on a seismic isolation device of a seismic isolation building, and a magnetic sensor which monitors the horizontal displacement of the seismic isolation device, and is switched between an on-state and an off-state. The method also includes a vibration source factor determination process (S1) and a seismic isolating determination process (S2). The vibration source factor determination process (S1) determines a vibration source from a feature of a vibration waveform, and at least determines, as this determination, whether the vibration source is an earthquake or a factor other than the earthquake. The seismic isolating determination process (S2) determines whether or not the seismic isolation device generates seismic isolating from a result of the on/off-switching of the magnetic sensor, and determines whether or not residual displacement is generated in the seismic isolation device.

Description

  The present invention relates to a seismic isolation effect monitoring method and a monitoring apparatus for monitoring the seismic isolation effect of a seismic isolation device in a house or other seismic isolation building.

There are two main types of systems for monitoring seismic isolation in houses and other seismic isolation buildings.
(1) Non-contact monitoring system using an acceleration sensor.
(2) A contact-type monitoring system that directly draws a seismic isolation track with a stylus on the seismic isolation device itself.

JP 2006-249833 A JP 2006-233703 A JP 2012-137339 A

Since the non-contact monitoring system (1) uses only the vibration measurement value by the acceleration sensor, the displacement amount of the seismic isolation device of the building cannot be accurately grasped. In addition, the load acting on the earthquake and wind cannot be clearly determined, and the factor cannot be solved.
The contact monitoring system in (2) above may be destroyed during the seismic isolation action. Moreover, the judgment is only whether or not it has moved, and it is not possible to clearly judge the factors of the load acting such as earthquake and wind. Therefore, the factor cannot be solved.
In a seismic isolation building, no system has been devised to determine what is the cause of the load acting on the building.

The object of the present invention is to determine that the factor of the load acting on the building is an earthquake, and to determine the seismic isolation status of the seismic isolation device. The object is to provide a seismic isolation effect monitoring method and a monitoring apparatus for a seismic isolation building that does not cause damage.
Another object of the present invention is to make it possible to determine that the factor of the load acting on the building is wind and to know whether or not there is a residual displacement in the seismic isolation device. That is.

The seismic isolation effect monitoring method for a seismic isolation building according to the present invention is a seismic isolation effect monitoring method for monitoring the effect of a seismic isolation device in a seismic isolation building,
An acceleration sensor for measuring the vibration of the building body mounted on the seismic isolation device of the seismic isolation building; and the horizontal displacement between the base side portion and the building body side portion of the seismic isolation device that can be horizontally displaced from each other, and Using a magnetic sensor that switches on and off at a predetermined amount of horizontal displacement,
A vibration source factor determination process for determining a vibration source from the characteristics of the vibration waveform measured by the acceleration sensor, and at least determining whether the vibration source is an earthquake or a factor other than an earthquake as this determination;
One of the determination of whether or not the seismic isolation device has produced a predetermined seismic isolation action and the determination of whether or not residual displacement has occurred in the seismic isolation device from the result of the on / off switching of the magnetic sensor or Seismic isolation judgment process to do both,
Including.

According to this method, two types of sensors, an acceleration sensor and a magnetic sensor, are used to determine the mutual state. For example, first, it is determined from the characteristics of the vibration waveform whether the vibration is caused by an earthquake or is caused by a factor other than the earthquake. Since the vibration of a building has its characteristics depending on what the vibration source is, the vibration source can be clearly identified by whether or not the vibration waveform has the characteristics, and it can be determined whether or not the vibration is caused by an earthquake. After the determination of the vibration factor, the state of the seismic isolation action of the seismic isolation device is determined from the result of the on / off switching of the magnetic sensor. Since the magnetic sensor is switched on and off by a predetermined amount of horizontal displacement, the seismic isolation device operates depending on whether or not the on / off is switched, the number of times of switching, and whether it is currently on or off. Thus, it is possible to accurately grasp whether the building body has moved and whether a residual displacement has occurred.
In this way, since the two types of sensors, the acceleration sensor and the magnetic sensor, are used to determine the mutual state, the movement of the building is accurately grasped, and the factor when the seismic isolation device is activated is an earthquake Can be clearly determined. Since the situation in which the seismic isolation action has occurred can be evaluated together with the vibration factor, it is possible to appropriately evaluate whether or not a predetermined seismic isolation action has occurred. For this reason, it is easy to examine a countermeasure when seismic isolation is not properly performed. Because the factors are clear, you can take action according to the situation without going to the site. Moreover, since the building situation is automatically judged, there is no mistake in judgment by a person.
Moreover, even if the sensors to be used are an acceleration sensor and a magnetic sensor, since they are non-contact sensors, they are not damaged even when a large load such as an earthquake is applied.

In the method of the present invention, when it is determined in the vibration source factor determination process that the vibration is caused by an earthquake, the seismic isolation device is predetermined when the measured value by the acceleration sensor is less than a set value compared with a set value. It may be determined that the seismic isolation action is not generated, and an off-action earthquake judgment process that proceeds to the seismic isolation judgment process when it is equal to or greater than a set value may be included.
If the load applied to the building is not large enough, the seismic isolation device will not be seismic isolation. Therefore, when the measured value of vibration by the acceleration sensor is less than the set value, it can be determined that the seismic isolation device did not work.

In the method of the present invention, the vibration source factor determination process is an earthquake determination process for determining whether the vibration source is an earthquake or a non-earthquake factor, and the earthquake determination process determines that it is a factor other than an earthquake. A wind factor determination process for determining whether the vibration is caused by a wind or a factor other than wind from the characteristics of the vibration waveform, and when the magnetic sensor determines that the vibration is caused by the wind A residual displacement determination process may be provided for determining whether or not there is a residual displacement in the seismic isolation device from the on / off value of.
The building may be shaken greatly by wind load, and the residual displacement of the seismic isolation device may change. For this reason, the factor of vibration is a wind load, and by knowing the presence or absence of residual displacement of the seismic isolation device, a countermeasure according to the wind load can be appropriately examined.

A seismic isolation effect monitoring device (20) for a base isolation building according to the present invention is a device for monitoring the effect of the base isolation device (2) in the base isolation building (1),
An acceleration sensor (4) for measuring vibration of the building body (1a);
A magnetic sensor that monitors the horizontal displacement between the base side portion (2a) and the building body side portion (2b) of the seismic isolation device (2) that can be horizontally displaced, and switches on and off at a predetermined amount of the horizontal displacement. (5) and
Seismic isolation effect monitoring means (21) for monitoring the detection signals of the acceleration sensor (4) and the magnetic sensor (5) and performing predetermined processing,
This seismic isolation monitoring means (21)
A vibration source factor determination means (22) for determining a vibration source from the characteristics of the vibration waveform measured by the acceleration sensor (4) and at least determining whether the vibration source is an earthquake or a factor other than an earthquake. When,
Judgment as to whether or not the seismic isolation device (2) has produced a predetermined seismic isolation action from the result of on / off switching of the magnetic sensor (5), and whether there is residual displacement in the seismic isolation device (2) Seismic isolation determination means (23) for performing either or both of determination of whether or not,
And have.

  According to the seismic isolation effect monitoring device of this configuration, in the same manner as described for the seismic isolation effect monitoring method of the present invention, after determining that the factor of the load acting on the building (1) is an earthquake, The seismic isolation status of the seismic device (2) can be judged. In addition, the sensors (4, 5) are not damaged even during a large load such as an earthquake.

In the apparatus according to the present invention, when the vibration source factor determining means (22) determines that the vibration is caused by an earthquake, the measured value by the acceleration sensor (4) is compared with a set value and is less than the set value. It includes a seismic isolation unit (25b) that determines that the seismic isolation device (2) did not produce a predetermined seismic isolation effect and causes the seismic isolation determination means 23 to perform processing when the seismic isolation device 23 exceeds a set value. May be.
In the case of this configuration, it can be determined that the factor of the load acting on the building (1) is wind, and in that case, it can be known whether or not there is a residual displacement in the seismic isolation device (2). .

  The seismic isolation building monitoring method and monitoring apparatus according to the present invention uses two types of sensors, an acceleration sensor and a magnetic sensor, and the factor of the load acting on the building is an earthquake from the characteristics of the vibration waveform. In order to determine the seismic isolation action of the seismic isolation device from the magnetic sensor and to determine the mutual state of both sensors, it is determined that the cause of the load acting on the building is an earthquake. Thus, it is possible to determine the state of the seismic isolation action of the seismic isolation device, and to obtain an effect that the sensors are not damaged even when a large load such as an earthquake occurs.

  In the present invention, it includes a wind factor determination process for determining whether the vibration is caused by wind or a factor other than wind from the characteristics of the vibration waveform, and when it is determined that the vibration is caused by the wind, If a residual displacement process that determines whether or not there is a residual displacement in the seismic isolation device from the on / off value, it can be determined that the factor of the load acting on the building is wind, and in that case It is possible to know whether there is any residual displacement in the seismic isolation device.

It is explanatory drawing of the seismic isolation effect monitoring apparatus used for the seismic isolation effect monitoring method of the base isolation building which concerns on one Embodiment of this invention. It is a block diagram which shows the conceptual structure of the seismic isolation effect monitoring apparatus. It is explanatory drawing of the outline | summary of the seismic isolation effect monitoring method. It is a schematic flowchart of the seismic isolation effect monitoring method. It is a flowchart which shows each process of the seismic isolation effect monitoring method. It is a figure which expands and shows a part of the flowchart. It is a figure which expands and shows the remaining part of the same flowchart.

  An embodiment of the present invention will be described with reference to the drawings. This seismic isolation effect monitoring method for a base isolation building is a method for monitoring the base isolation effect of the base isolation device 2 in the base isolation building 1. The seismic isolation building 1 has a building main body 1 a mounted on a seismic isolation device 2 provided on a foundation 3. The seismic isolation building 1 may be a detached house, an apartment house, an office building, or the like. The seismic isolation device 2 only needs to be of a type that becomes a base isolation frame. In this example, a spherical body 2c such as a steel ball is provided between the foundation side member 2a having a concave spherical surface and the building body side portion 2b. The base side member 2a and the building main body side portion 2b are allowed to be horizontally displaced and have a function of returning to the origin. In addition to this, the seismic isolation device 2 may be a type in which the foundation side member 2a and the building main body side portion 2b are brought into frictional contact, or a viscoelastic body having a function of returning to the origin.

  This seismic isolation effect monitoring method monitors the horizontal displacement between the acceleration sensor 4 for measuring the vibration of the building main body 1a of the base isolation building 1 and the base side portion 2a and the building main body side portion 2b of the base isolation device 2. A magnetic sensor 5 and an information processing device 6 are used. As the acceleration sensor 4, a sensor that measures an acceleration value in an arbitrary direction and a direction in which the acceleration occurs is used. The magnetic sensor 5 is composed of, for example, a proximity switch. In this example, the magnetic sensor 5 is provided on the foundation-side portion 2a and made of a ferromagnetic material, and is provided on the building body-side portion 2b to detect the detection object 5a. The sensor element 5b is switched on and off at a predetermined amount of relative horizontal displacement between the foundation side portion 2a and the building body side portion 2b. For example, it remains on when the horizontal displacement is within a predetermined amount, and turns off when it exceeds the predetermined amount. The predetermined amount is a suitably determined amount or an amount that the magnetic sensor 5 has as a characteristic. Either the detected body 5a or the sensor element 5b may be installed in the building body side portion 2b.

  The information processing device 6 is a computer such as a personal computer, and the seismic isolation effect monitoring program 8 stored in the storage means 7 is executed by a CPU (central processing unit) 9, whereby the seismic isolation effect monitoring method of this embodiment is executed. Each process described later in FIG. The seismic isolation effect monitoring program 8 is an application program that can be executed on the OS (operation program) of the information processing apparatus 6. Signals output from the acceleration sensor 4 and the magnetic sensor 5 are input to the information processing device 6 from the input / output port 10. In addition to this, the information processing device 6 includes or is connected to an input device 11 such as a keyboard and a screen display device 12 that displays an image such as a liquid crystal display. Note that the information processing device 6 may be a tablet terminal, a multi-function telephone terminal called a smartphone or the like. In this example, the signals output from the acceleration sensor 4 and the magnetic sensor 5 are taken into the information processing device 6 in real time, but the vibration measurement information of the acceleration sensor 4 and the on / off state of the magnetic sensor 5 are stored in a storage device (not shown). The detection state may be stored in association with time, and may be taken into the information processing device 6 periodically or at any time, for example, to determine the seismic isolation effect.

  The seismic isolation effect monitoring means 21 of the seismic isolation effect monitoring device 20 is composed of the seismic isolation effect monitoring program 8 and the hardware configuration such as the CPU 9 of the information processing device 6. explain.

  This seismic isolation effect monitoring method includes the following steps as shown in FIGS. 3 and 4 and a detailed flowchart in FIGS. 5 to 7. Each of these processes is a process in which the information processing apparatus 6 performs a process, and each of them is a process of executing each procedure of the seismic isolation effect monitoring program 8. Each step in FIGS. 5 to 7 shows each procedure in the seismic isolation effect monitoring program 8 and will be described as each process of the seismic isolation effect monitoring method.

First, an outline will be described with reference to FIGS. This seismic isolation effect monitoring method includes a vibration source factor determination process S1, a seismic isolation determination process S2, and a countermeasure proposal process S3. In FIG. 3, a sensor used in each process is illustrated before each process.
In the vibration source factor determination process S1, the vibration source is determined from the characteristics of the vibration waveform measured by the acceleration sensor 4, and at least determination as to whether the vibration source is an earthquake or a factor other than an earthquake is made as this determination. Since the vibration of the base-isolated building 1 has its characteristics depending on what the vibration source is, the vibration source can be clearly identified by whether or not the vibration waveform has the characteristics, and it can be determined whether the vibration is caused by an earthquake. .

  The seismic isolation determination process S2 includes determining whether or not the seismic isolation device 2 has produced a predetermined seismic isolation action based on the on / off switching result of the magnetic sensor 5, that is, whether or not seismic isolation has been performed. One or both of the determination as to whether or not residual displacement has occurred in the seismic device 2 is performed. In this example, both determinations are made. Since the magnetic sensor 5 is switched on and off by a predetermined amount of horizontal displacement, whether or not the building main body 1a is moved by the seismic isolation device 2 depending on whether the on / off switching is performed, that is, the seismic isolation is performed. Whether or not the residual displacement has occurred can be grasped depending on whether it is currently on or off.

  The coping method proposing process S3 is a process of outputting a predetermined coping method proposal to the screen display device 12 (FIG. 1) according to the determination results of the vibration source factor determining process S1 and the seismic isolation determining process S2. The coping method suggestion step S3 does not necessarily have to be performed automatically, and a person may consider the coping method from the judgment results of the steps S1 and S2.

  Specifically, the vibration source factor determination process S1 is an earthquake determination process S1a for determining whether or not the vibration source is an earthquake from the characteristics of the vibration waveform. It includes a wind factor determination process S1b for determining whether or not, other factor determination process (1) S1c, and other factor determination process (2) S1d. Further, when the earthquake determination process S1a is determined to be a vibration caused by an earthquake in the earthquake determination process S1a, the seismic isolation device 2 is compared with the measured value by the acceleration sensor 4 compared to the set value. Includes a non-action seismic determination process S1aa that proceeds to the seismic isolation determination process S2 when it is determined that a predetermined seismic isolation action has not occurred and is equal to or greater than a set value.

An example of the characteristics of the vibration waveform determined in the vibration source factor determination step S1 will be described.
The characteristics of the earthquake waveform are that the vibration time is short (for example, 3 minutes or less), the frequency at which the response spectrum is maximum is about 1 Hz or less, and the main movement (large shaking) is observed after the initial fine movement (small shaking). That is. Therefore, the measured vibration is less than a set value (for example, 5 minutes), the frequency at which the response spectrum is maximum is less than a set value (for example, about 3 Hz), and the magnitude of vibration is less than the set value (for example, less than 10 Gal). If 10 Gal or more is observed after observation for 1 second or more, it is determined that the vibration source is an earthquake.

  The characteristic of the wind waveform is that the acceleration is small (about 1 to 3 Gal), the pitch is smaller in each direction, the vibration frequency is the longest (about 10 minutes or more), and the response spectrum is maximum. Degree. Therefore, the measured vibration is within a set acceleration range (for example, 0.5 to 5 Gal), the roll is larger than the pitch, the vibration time is longer than the set time (for example, 5 minutes), and the response spectrum is maximized. When the number is within a set range (for example, 3 to 10 Hz), it is determined that the vibration source is wind.

  The other feature (1) is the characteristic of the collision waveform due to disasters such as accidents. The magnitude acceleration (about 100 Gal) enters once, and then the free vibration occurs, and the frequency that maximizes the response spectrum is the natural vibration of the building. A few. Accordingly, in the other factor determination process (1) S1c, when the set acceleration (for example, 50 Gal) once enters, and then the free vibration occurs and the frequency at which the response spectrum becomes maximum is within the set range (for example, 3 to 10 Hz) , It is determined that the vibration source is “other (1)”.

The other feature (2) is the characteristic of traffic vibration, with small acceleration (about 1 to 3 Gal), and by direction, the pitching is greater than the rolling and is short (less than 1 minute). Therefore, in the other factor judgment process (2) S1c, the acceleration is within the set range (for example, 0.5 to 5 Gal), the pitch is greater than the roll, and the vibration is within the set time (for example, within 2 minutes). In some cases, it is determined that the vibration source is “Other (2)”.
In the above example, the conditions are determined for all the characteristics of each vibration source. However, it is only necessary to distinguish the types of vibration sources, and any of the above determination conditions may be omitted.

The seismic isolation determination process S2 includes a seismic isolation presence determination process S2a and a residual displacement determination process S2b. The seismic isolation presence / absence determination process S2a determines that seismic isolation, that is, a predetermined seismic isolation effect has occurred when the magnetic sensor 5 is switched on and off.
In the residual displacement determination step S2b, it is determined that there is no residual displacement if the magnetic sensor 5 is on at the end of the vibration, and it is determined that there is residual displacement if it is off.

Next, specific steps of the seismic isolation effect monitoring method will be described with reference to FIGS. FIG. 5 shows the whole, and a part of FIG. 5 is enlarged and shown in FIG.
As shown in FIG. 6, first, it is determined whether or not the acceleration waveform measured by the acceleration sensor 4 has an earthquake-specific characteristic (earthquake determination process S1a).

If it does not have the characteristics peculiar to earthquakes, the process proceeds to the process shown in FIG. When it has the characteristic peculiar to an earthquake, it is determined whether or not the acceleration is 100 Gal or more (earthquake determination process S1aa). If the load applied to the building is not large to some extent, the seismic isolation device 2 is not seismically isolated. Therefore, when the measured value of vibration by the acceleration sensor 4 is less than the set value (100 Gal in this example), it can be determined that the seismic isolation device did not act.
If it is less than 100 Gal, it is determined whether or not the magnetic sensor 5 at the end of vibration (hereinafter abbreviated as “final mug”) is on (S2b ₁ ). If it is not on, it is determined that there is a residual displacement without seismic isolation (b ₁₁ ). In this case, the seismic isolation device (seismic isolation layer) 2 is inspected, and a proposal of a countermeasure for pulling back the building is output to the screen display device 12 (S3 ₁ ). Note that, regarding the matter of “outputting the proposal to the screen display device 12”, the following is simply referred to as “showing the proposal”. If it is on, it is determined that the seismic isolation is not performed and there is no residual displacement (b ₁₂ ).

When the acceleration is 100 Gal or more in the non-action earthquake determination process S1aa, it is determined whether the magnetic sensor 5 has changed from on to off or has been operated from off to on at least once (seismic isolation). Presence / absence determination step S2a). If the condition is not satisfied (NG), it is determined whether the last mug is on (S2b ₂ ). When it is not ON, there is a possibility of seismic isolation, there is a residual displacement (b ₂₁ ), and a proposal of a countermeasure for pulling back the building is shown (S 3 ₂ ). When it is on, it is determined that there is a possibility of seismic isolation and that there is no residual displacement (b ₂₂ ).
If the condition is satisfied in the seismic isolation presence determination step S2a, it is determined that the seismic isolation has been performed, and it is determined whether the final mug is on (S2b ₃ ). If it is not on, it is seismically isolated and there is a residual displacement (b ₃₁ ), and a suggestion of a countermeasure for pulling back the building is shown (S _{3 3} ). If it is on, it is determined that there is seismic isolation and no residual displacement (b ₃₂ ).

If it is determined in the earthquake determination process S1a that there is no characteristic peculiar to an earthquake, the process proceeds to the wind factor determination process S1b in FIG. 7 to determine whether the acceleration waveform has a characteristic peculiar to the wind. . If a wind-specific features, determines whether the magnetic sensor 5 immediately before the vibration generator is on (S2b _4). If not, it is determined whether or not the mug has been turned on (S2b ₅ ). If it is not switched from off to on, it is determined that there is a residual displacement originally (b ₅₁ ), and a proposal of a countermeasure for pulling back the building is shown (b 3 ₄ ). When turned from off to on, there is no residual displacement, but it has returned by the wind or is not moving by the wind (b ₅₂ ). Make a proposal (S3 ₅ ).
If it is determined in the determination process (S2b ₄ ) whether or not the magnetic sensor 5 immediately before the occurrence of vibration is on, it is determined whether or not the magnetic sensor 5 has been turned off from on (S2b ₄ ). ₆ ). If it is not turned off from on, it is determined that there is no residual displacement and the wind is not moving (b ₆₁ ). If turned off from on, move in the wind, it is determined that there is residual displacement (b _62). In this case, a countermeasure for fixing the wind sway and a countermeasure for pulling back the building are proposed (S3 ₆ ).

If it is determined in the wind factor determination step S1b that there is no characteristic peculiar to the wind, it is determined whether or not the vibration waveform has a characteristic of “other (1)” (S1c). If it has this feature, it is determined whether or not the magnetic sensor 5 immediately before the occurrence of vibration is on (S2b ₇ ). If not, it is determined whether the mug has been turned on from off (S2b ₈ ). If it is not switched from off to on, it is determined that there is a residual displacement originally (b ₈₁ ), and a proposal of a countermeasure for pulling back the building is shown (S 3 ₇ ). When turned from off to on, there is no residual displacement, but it has returned by vibration or is not moving by vibration (b ₈₂ ), and a countermeasure for repairing the building is proposed (S 3 ₈ ).
If it is determined that the magnetic sensor 5 immediately before the occurrence of vibration is on in the determination process (S2b ₇ ), it is determined whether the magnetic sensor 5 has been turned off from on (S2b ₇ ). ₉ ). If it is not turned from on to off, it is determined that there is no residual displacement and that it is not moved by vibration (b ₉₁ ). In this case, a proposal for repairing the building is made (S3 ₈ ). When the building is turned off from on, the building moves due to vibration and it is determined that there is a residual displacement (b ₉₂ ). In this case, the coping method which repairs a building and pulls back a building is proposed (S3 ₉ ).

If it is determined in the determination process (S1c) whether or not it has the characteristics of “other (1)”, the vibration waveform has the characteristics of “other (2)”. It is determined whether or not (S1d). If it has this feature, it is determined whether or not the magnetic sensor 5 immediately before the occurrence of vibration is on (S2b ₁₀ ). If not, it is determined whether the mug has been turned on from off (S2b ₁₁ ). If it is not switched from off to on, it is determined that there is a residual displacement originally (b ₁₁₁ ), and a proposal of a countermeasure for pulling back the building is shown (S 3 ₁₀ ). When turned from off to on, there is no residual displacement, but it has returned due to traffic vibration or is not moving due to traffic vibration (b ₁₁₂ ).
If it is determined that the magnetic sensor 5 immediately before the occurrence of vibration is on in the determination process (S2b ₁₀ ), it is determined whether the magnetic sensor 5 has been turned off from on (S2b ₁₀ ). ₁₂ ). If it is not switched from ON to OFF, it is determined that there is no residual displacement and the vehicle is not moving due to traffic vibration (b ₁₂₁ ). If it is turned off from on, the building moves due to traffic vibration and it is determined that there is a residual displacement (b ₁₁₂ ). In this case, the cause of the vibration is pursued, a countermeasure against the traffic vibration is taken, and a countermeasure for pulling back the building is proposed (S ₃₁₁ ).

  In FIG. 5, a plurality of processes are surrounded by a one-dot chain line and attached with a reference symbol to show the relationship with each process shown in FIG. 4. That is, each process shown in FIG. 4 includes each individual process surrounded by a one-dot chain line in FIG.

  This seismic isolation effect monitoring method makes such a series of judgments. According to this method, both the acceleration sensor 4 and the magnetic sensor 5 which are non-contact type sensors are used, and the movement of the building is accurately grasped in order to determine the mutual state optimally. A factor when the seismic isolation device 2 is operated can be clearly determined. Therefore, the following advantages can be obtained.

・ The cause of vibration can be clearly determined from the monitoring status of the base-isolated building 1.
・ Since the factors are clear, it is possible to take measures according to the situation without going to the site.
・ Since the situation of building 1 is judged automatically, there is no human error in judgment.
-Since non-contact sensors are used, they will not be damaged even when large loads such as earthquakes occur.

  Next, the seismic isolation effect monitoring device 20 of this base isolation building will be described with reference to FIG. The seismic isolation effect monitoring device 20 is a device that monitors the effect of the seismic isolation device 2 in the seismic isolation building 1, and includes the acceleration sensor 4, the magnetic sensor 5, and the seismic isolation effect monitoring unit 21. Is provided. As described above, the seismic isolation effect monitoring means 21 comprises the following function achievement means shown in FIG. 2 with the seismic isolation effect monitoring program 8 of FIG. 1 and the information processing apparatus 6 executing the program. is there. The seismic isolation effect monitoring unit 21 includes a vibration source factor determination unit 22, a seismic isolation determination unit 23, and a countermeasure proposal unit 24.

The vibration source factor determination means 22 is a means for determining the vibration source from the characteristics of the vibration waveform measured by the acceleration sensor 4, and at least determining whether the vibration source is an earthquake or a factor other than an earthquake. .
The seismic isolation determination means 23 determines whether or not the seismic isolation device 2 has undergone seismic isolation, which is a predetermined seismic isolation function, based on the on / off switching result of the magnetic sensor 5 and the seismic isolation device 2. This is means for performing either one or both of the determination as to whether or not the residual displacement has occurred. In this example, both are performed.
The coping method proposing means 24 is means for outputting a predetermined coping method proposal to the screen display device 12 (FIG. 1) in accordance with the judgment results of the vibration source factor judgment means 22 and the seismic isolation judgment means 23. Specifically, the coping method proposing means 24 performs the processing described in the coping method proposing process S3 of FIGS.

Specifically, the vibration source factor determination means 22 performs each process described in the seismic isolation factor determination step S1 of FIG. The vibration source factor determination unit 22 includes an earthquake determination unit 25, a wind factor determination unit 26, and another factor determination unit 27. The earthquake determination unit 25 is a means for performing the processing described with respect to the earthquake determination process S1a of FIG. 4, and includes a main earthquake determination unit 25a and an out-of-action earthquake determination unit 25b. The earthquake determination unit 25 is a means for determining the process S1a in FIG. The non-action earthquake determination unit 25b is means for determining the process S1aa in FIG. The main earthquake determination unit 25a makes each determination after step S2a in FIG.
The wind factor determination unit 26 performs the determination described for the wind factor determination process S1b in FIGS. The other factor determination unit 27 is a means for performing the processing described in the other factor determination process (1) S1c and the other factor determination process (2) S1d in FIGS.

  Specifically, the seismic isolation determination means 23 is a means for performing each process described in the seismic isolation determination process S2 of FIG. 4 and includes a seismic isolation presence determination section 28 and a residual displacement determination section 29. The seismic isolation presence / absence determination unit 28 performs each process described in the seismic isolation presence / absence determination process S2a of FIGS. The residual displacement determination unit 29 performs each process described in the residual displacement determination step S2b of FIGS.

  According to the seismic isolation effect monitoring device having this configuration, the seismic isolation effect monitoring method can be implemented, and the actions and effects described with respect to the seismic isolation effect monitoring method can be obtained.

DESCRIPTION OF SYMBOLS 1 ... Base-isolated building 1a ... Building body 2 ... Seismic isolation device 2a ... Foundation side member 2b ... Building body side part 3 ... Foundation 4 ... Acceleration sensor 5 ... Magnetic sensor 6 ... Information processing device 5a ... Detected object 5b ... Sensor element 8 ... Seismic isolation effect monitoring program 20 ... Seismic isolation effect monitoring device 21 ... Seismic isolation effect monitoring means 22 ... Seismic isolation determination means 23 ... Seismic isolation determination means 24 ... Countermeasure proposal means 25 ... Earthquake determination section 26 ... Wind factor Judgment unit 27 ... Other factor judgment unit 28 ... Seismic isolation presence / absence judgment unit 29 ... Residual displacement judgment unit

Claims (5)

A seismic isolation effect monitoring method for monitoring the effect of a seismic isolation device in a base isolation building,
An acceleration sensor for measuring the vibration of the building body mounted on the seismic isolation device of the seismic isolation building; and the horizontal displacement between the base side portion and the building body side portion of the seismic isolation device that can be horizontally displaced from each other, and Using a magnetic sensor that switches on and off at a predetermined amount of horizontal displacement,
A vibration source factor determination process for determining a vibration source from the characteristics of the vibration waveform measured by the acceleration sensor, and at least determining whether the vibration source is an earthquake or a factor other than an earthquake as this determination;
One of determination of whether or not the seismic isolation device has produced a predetermined seismic isolation action from the result of on / off switching of the magnetic sensor, and determination of whether or not residual displacement has occurred in the seismic isolation device or Seismic isolation judgment process to do both,
Seismic isolation effect monitoring method for base-isolated buildings.   The seismic isolation effect monitoring method for a seismic isolation building according to claim 1, wherein when the vibration source factor determination process determines that the vibration is caused by an earthquake, the measurement value by the acceleration sensor is set in comparison with a set value. It is determined that the seismic isolation device did not produce a predetermined seismic isolation action when the value is less than the value, and the seismic isolation building including the off-action earthquake judgment process that proceeds to the seismic isolation judgment process when the value exceeds the set value Seismic effect monitoring method.   3. The seismic isolation effect monitoring method according to claim 1 or 2, wherein the vibration source factor determination process determines whether the vibration source is an earthquake or a factor other than an earthquake. And a wind factor judgment process for judging whether the vibration is caused by a wind or a factor other than the wind from the characteristics of the vibration waveform when the earthquake judgment process judges that the factor is other than an earthquake. The seismic isolation effect of the base isolation building provided with the residual displacement determination process for determining whether or not the base isolation device has a residual displacement from the on / off value of the magnetic sensor when it is determined that the vibration is caused by the wind Monitoring method. A seismic isolation effect monitoring device for monitoring the effect of a seismic isolation device in a seismic isolation building,
An acceleration sensor that measures the vibration of the building body mounted on the seismic isolation device of the base isolation building; and the horizontal displacement between the base side portion and the building main body side portion of the base isolation device that can be horizontally displaced with respect to each other. A magnetic sensor that switches on and off at a predetermined amount of horizontal displacement;
Seismic isolation effect monitoring means for monitoring the detection signals of these acceleration sensors and magnetic sensors and performing predetermined processing,
This seismic isolation monitoring means
A vibration source factor determining means for determining a vibration source from the characteristics of the vibration waveform measured by the acceleration sensor, and at least determining whether the vibration source is an earthquake or a factor other than an earthquake as this determination;
One of determination of whether or not the seismic isolation device has produced a predetermined seismic isolation action from the result of on / off switching of the magnetic sensor, and determination of whether or not residual displacement has occurred in the seismic isolation device or Seismic isolation judgment means to do both,
A seismic isolation monitoring device for seismic isolation buildings.   5. The seismic isolation effect monitoring device for a seismic isolation building according to claim 4, wherein when the vibration source factor determining means determines that the vibration is caused by an earthquake, the measured value by the acceleration sensor is set by comparison with a set value. It is determined that the seismic isolation device did not produce a predetermined seismic isolation action when the value is less than the value, and the seismic isolation means includes an off-effect seismic judgment means for performing processing by the seismic isolation judgment means when it is equal to or greater than a set value Seismic isolation effect monitoring device for buildings.

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