JP2006250585A - Load-bearing panel, building, and simple diagnosis system and method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To diagnose a decrease in the load bearing of the structure skeleton of a building easily, rapidly, and inexpensively. <P>SOLUTION: A load-bearing frame 11 of a load-bearing panel 10 is joined to a framework constructed by a columnar member S1, a beam member S2, or the like, and a sensor 20 is installed at a perpendicular brace 13 of the load-bearing frame 11. When prescribed deformation or a stress history occurs in the perpendicular brace 13 by the horizontal load of an earthquake, or the like in a building H having the structure skeleton S, a detection signal is outputted from a detection circuit 30, based on the occurrence of cracks G having at least prescribed length in a detection member 21 of the sensor 20. A diagnosis device 50 collects the detection signal via a communication line or by radio, and diagnoses the reduced state of the strength of structure in the building H based on a prescribed diagnosis program. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a building simple diagnosis system, a building simple diagnosis method, and such a simple diagnosis system for enabling quick and simple diagnosis of a decrease in the strength of a structural frame in a building or a workpiece. The present invention relates to a load-bearing panel that is used for a structural frame of a building in order to make it possible, and a building using the load-bearing panel.

Building users are very interested in disasters such as earthquakes and deterioration in the strength of building structures due to secular changes, and there is an increasing demand for diagnosis of reduced strength in building structures during disasters and after-maintenance. Yes.
Conventionally, when a building is damaged by an earthquake, the state of the building after the earthquake is evaluated by checking a state change such as a damage degree of the building and a residual deformation by visual inspection. In addition, when the visual inspection cannot be performed without destroying the building, a method of evaluating the state of the building using ultrasonic waves or infrared rays is used. In addition, a state inspection system for diagnosing a deterioration state based on an output of a sensor embedded in a civil structure in advance is used in a civil structure or the like. (For example, refer to Patent Document 1).
Japanese Patent No. 3416875 (page 4-7, FIG. 1, FIG. 18)

However, there is a problem that the judgment by visual observation may miss a slight change and lacks objectivity. In addition, since changes that cannot be visually recognized cannot be confirmed in the first place, there is a problem that sufficient information necessary for diagnosing the deterioration of the strength of the structural frame cannot be obtained. Also, depending on the building, preparations such as building a scaffold were required. Therefore, there is a problem that it is not possible to make a quick diagnosis. In addition, the method using ultrasonic waves, infrared rays, etc. has a problem that it is large-scale and requires cost and time.
In addition, the state inspection system of Patent Document 1 is a system in which a sensor is embedded in a large-scale structure such as an RC structure, and the output of the sensor is measured by a traveling body that travels inside. It does not apply to small-scale buildings such as detached houses.

  On the other hand, when a disaster occurs, requests for inspection from residents are concentrated on residential buildings such as houses. In addition, if an aftershock occurs, further inspection is required. However, with existing technology, it is difficult to make a quick diagnosis, and it has not been possible to quickly respond to residents' anxieties. Further, as a service at the time of after-maintenance, there has been a demand for a simple and quick diagnosis of the structural body at a lower cost.

  The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to make a diagnosis about a decrease in the strength of a structural frame of a building simply and quickly and at a low cost.

  According to the load-bearing panel according to claim 1, the problem is a load-bearing panel that is joined to a steel frame and forms a structural frame of a building together with the steel frame, and is installed in the brace and the brace. Detecting means, and the detecting means enters a predetermined detection state based on detection of a predetermined deformation of the brace or a predetermined stress history generated in the brace, and a detection signal is detected in the detection state. The detection signal is solved by being used as diagnostic information for diagnosing whether a part or the whole of the structural housing is in a predetermined strength reduction state.

Thus, the load-bearing panel according to claim 1 is provided with braces joined to the steel frame. In such a structure, the brace bears a horizontal load caused by an earthquake or wind. That is, a tensile force is applied to the brace due to an earthquake or wind, and when a predetermined stress history is passed, a fatigue damage state occurs and deformation occurs.
Therefore, it is possible to easily and quickly diagnose the reduced strength state of the structural frame of the building by paying attention to the deformation of the braces and the stress history. That is, a detection member capable of detecting the occurrence of a predetermined deformation or stress history in the brace is installed, and the fatigue damage state of the brace is diagnosed based on the detection signal. Based on this information, the structural structural body of the building It is possible to easily and quickly diagnose the reduced strength state.
In addition, the brace can be previously joined to the frame at the factory by converting the wall body into a component called a load-bearing panel. Therefore, it is not necessary to perform the installation work of the detection member at the site by previously installing the detection member on the brace at the stage of manufacturing the load-bearing panel in the factory. Therefore, the construction process is shortened. Moreover, the installation mistake of a detection member is prevented and diagnostic accuracy improves.

  Further, according to the building of claim 2, the subject is a building having a structural housing including a steel frame and a brace, and a detection unit installed on the brace, wherein the detection unit Is in a predetermined detection state based on detection of a predetermined deformation of the brace or a predetermined stress history generated in the brace, and is configured to output a detection signal in the detection state. Is solved by being used as diagnostic information for diagnosing whether or not a part or the whole of the structural casing is in a predetermined proof strength reduction state.

  Thus, the building according to claim 2 includes a brace joined to the steel frame, and the brace is provided with a detection member capable of detecting deformation and stress history. Therefore, similarly to the first aspect, it is possible to diagnose the fatigue damage state of the brace based on the detection signal of the detection member, and to easily and quickly diagnose the reduced strength state of the structural frame based on this information. Can provide a building.

  Further, according to the simple diagnosis system according to claim 3, the problem is that the detection means installed in the structural member constituting the structural frame of the building, and the diagnostic means configured to be able to communicate or connect to the detection means And the detection means is in a predetermined detection state based on detecting a predetermined deformation of the structural member or a predetermined stress history generated in the structural member, and in the detection state, the predetermined detection state The diagnosis means is configured to be capable of outputting a detection signal, and the diagnostic means acquires the detection signal from the detection means in accordance with an operation signal input from the outside, and a fatigue damage state of the structural member based on the detection signal It is solved by diagnosing.

  Thus, in the simple diagnosis system according to the third aspect, the detection member capable of detecting the deformation and the stress history is installed in the structural member. Therefore, the fatigue damage state of the structural member can be diagnosed based on the detection signal. Moreover, not only a brace but arbitrary structural members can be diagnosed. The diagnostician can check the fatigue damage state in units of structural members. Accordingly, it is possible to check the fatigue damage state of only an important structural member according to the purpose, and thereby, it is possible to make a simpler and quicker diagnosis of the reduced strength of the structural frame.

  At this time, as described in claim 4, the diagnostic means diagnoses whether or not a part or the whole of the structural casing is in a predetermined proof strength reduction state based on a diagnostic result of the structural member. Can be configured. As described above, based on the diagnosis of each structural member, diagnosis can be performed at various levels according to the purpose, such as diagnosis for each part of the structural body and diagnosis of the entire structural body. Therefore, diagnosis can be performed for various purposes according to demands during after-sales maintenance. In addition, it can be applied to various diagnostic items other than a decrease in yield strength such as a diagnosis of ground subsidence.

  According to a fifth aspect of the present invention, the detection means includes a detection circuit that is energized in the detection state and is de-energized in a state that is not the detection state, and the detection signal is supplied to the detection circuit. The diagnostic means diagnoses whether the structural member is in a predetermined fatigue damage state based on whether the detection signal is output. As described above, the detection circuit outputs only the on / off signal indicating the energized state or the energized cut-off state. Therefore, the configuration of the detection circuit and the configuration for processing of the detection signal can be simplified. . Therefore, it can be installed at low cost.

According to a sixth aspect of the present invention, a plurality of the detection means are installed in the structural housing, and the detection signal stores identification information that can identify the detection means that is a transmission source. Can be configured to store map information for associating the identification information with the position of the detection means specified by the identification information on the structural body.
If comprised in this way, based on a detection signal, the distribution of which position the structural member on a structural frame will be in a fatigue damage state can be created automatically, and a diagnosis can be performed. Therefore, simple diagnosis can be automated, and diagnosis can be performed quickly and easily.

Further, as described in claim 7, the diagnostic means provides a result of diagnosis on a monitoring panel installed in the building or a terminal or monitoring panel installed in a business office of a business operator who undertakes maintenance management of the building. Is displayed.
In this way, by displaying the diagnosis result of the structural frame on the monitoring panel installed in the building, it is possible to check the structural strength of the building user or the resident himself. In addition, a business operator who undertakes maintenance management can monitor whether the structural strength is normal or abnormal online. Therefore, the anxiety about the structural safety of the building user or the resident can be eliminated.

More specifically, as described in claim 8, the structural member may be composed of braces. As described in claim 1, paying attention to the deformation of the braces and the stress history, it is possible to easily and quickly diagnose the reduced strength state of the structural frame of the building.
More specifically, as described in claim 9, more specifically, the structural frame includes a steel frame and a load-bearing wall, and the brace is vertically stretched over a frame of a load-bearing panel constituting the load-bearing wall. It can be configured to consist of braces. Thus, by using a structure in which the steel frame and the load-bearing panel are used in combination, the detection member can be installed in advance in the brace at the stage of manufacturing the component called the load-bearing panel. Therefore, it is not necessary to perform the installation work of the detection member at the site, and the construction process is shortened. Moreover, the installation mistake of a detection member is prevented and diagnostic accuracy improves.

In addition, according to the simple diagnosis method for a building according to claim 10, the problem is that a structural structural body of the building is configured by the simple diagnosis system for a building according to any one of claims 3 to 9. A simple building diagnosis method for diagnosing a fatigue damage state of a structural member, wherein a detection means installed in the structural member constituting the structural frame of the building is a predetermined deformation of the structural member or a predetermined generated in the structural member A detection signal that is output based on the detection of the stress history of the detection signal collecting step, the diagnostic means configured to be communicable with or connected to the detection means is acquired according to an operation signal input from the outside, The diagnostic means diagnoses the fatigue damage state of the structural member based on the detection signal collected in the detection signal collecting step, and the diagnostic means in the structural member diagnostic step Based on the kicking diagnosis result, part or all of the structural framework is solved by performing a structural frame diagnosis process for diagnosing whether a predetermined strength reduction state, the.
When configured in this way, a detection means capable of outputting information for diagnosing the fatigue damage state of the structural member is installed in the structural member in advance to construct a building, and the information is collected by the diagnostic means as necessary. Thus, it is possible to diagnose the reduced strength state of the structural frame of the building.

As described above, according to the present invention, the following effects can be obtained.
(A) According to the present invention, it is possible to easily and quickly diagnose a reduced strength state of a structural frame of a building by paying attention to deformation and stress history of a structural member such as a brace. That is, a detection means capable of outputting information for diagnosing fatigue damage is installed in a structural member such as a brace in advance to construct a building, and the detection information is collected by the diagnosis means as necessary for diagnosis. I do. Thereby, depending on the purpose, it is possible to easily and quickly diagnose a reduced strength state of a part of or the entire structural member or the structural frame of the building.

(B) Further, according to the present invention, since the detection member can be installed in the brace in advance at the stage of manufacturing the componentized member called the load bearing panel, it is necessary to perform the installation work of the detection member at the site. There is no. Therefore, the construction process is shortened. Moreover, the installation mistake of a detection member is prevented and diagnostic accuracy improves.

(C) Also, according to the present invention, the diagnosis of the structural frame is displayed on the monitoring panel installed in the building, so that the building user or the resident can check. In addition, businesses that undertake maintenance management can check the normality and abnormality of structural strength online. Therefore, the anxiety about the structural safety of the building user or the resident can be eliminated.

(D) Further, according to the present invention, the detection circuit outputs only the on / off signal indicating whether the detection signal is in the energized state or in the energized state, so that the configuration of the detection circuit and the processing of the detection signal Therefore, the configuration for this can be simplified. Therefore, it can be installed at low cost.

  Embodiments of the present invention will be described with reference to the drawings. Further, the arrangement, shape, and the like described below do not limit the present invention, and various modifications can be made in accordance with the spirit of the present invention.

  FIG. 1 to FIG. 7 are diagrams showing an embodiment of the present invention, FIG. 1 is an explanatory view showing a building and a structural frame of the example, FIG. 2 is an explanatory view showing a brace and a load-bearing frame of the example, FIG. Is a perspective view showing the horizontal brace of the embodiment, FIG. 4 and FIG. 5 are explanatory diagrams showing the configuration of the sensor of the embodiment, FIG. 6 is an explanatory diagram showing the configuration of the simple diagnostic system for the building of the embodiment, and FIG. It is a flowchart which shows the flow of a process by the simple diagnostic system of an example building.

(Structure of structural housing with braces)
For example, as shown in FIGS. 1 and 2, the building H in the present embodiment has a structural frame on a surface of a predetermined portion of a frame structure constructed by a column member S1, a beam member S2, a truss S3, and the like. A structural housing S having a so-called panel-shaft combined structure in which a load-bearing panel 10 including a load-bearing frame 11 constituting the portion is installed.
In the present embodiment, the building H is used as a house or an apartment house, but any structure can be used as long as it uses the load-bearing frame 11 having a brace in which a sensor 20 described later is installed as a part of the structural frame. Such a building may be used. For example, it can be applied to office buildings, commercial facilities, factory facilities, warehouses, medical facilities, educational facilities, public buildings, and the like.

The load-bearing panel 10 includes a frame member 12 (consisting of an upper frame member 12a, a lower frame member 12b, a vertical frame member 12c, etc.) and a vertical brace 13 constituting the load-bearing frame 11. A plate-shaped base board is stretched.
The load-bearing panel 10 is erected so as to form a part of an outer wall or a partition wall of a building. When installed as an outer wall, for example, on a surface outside the building, a pier (horizontal or vertical pier) fixed to the base board at a predetermined pitch, and an outer wall finishing material attached to the outside of the pier, Is provided. Various interior finishing materials can be provided on the surface of the base board on the surface inside the building. Moreover, when installing as a partition wall, an indoor finishing material is provided in both surfaces, respectively. Moreover, you may provide layers, such as a heat insulating material, a fireproof material, a moisture proof material, a ventilation member, between a base board and an outer wall finishing material or an indoor finishing material.

  As shown in FIG. 2, the load-bearing frame 11 is formed on the surface of a rectangular frame 12 formed by assembling an upper frame member 12 a and a lower frame member 12 b of a predetermined cross section and left and right vertical frame members 12 c. The vertical brace 13 is stretched diagonally. A member such as an intermediate rail 12d may be disposed between the upper frame member 12a and the lower frame member 12b or between the left and right vertical frame members 12c so as not to intersect the vertical brace 13. For example, the middle rail 12d shown in FIG. 2 is provided so as to overlap the vertical brace 13.

  The upper frame member 12a, the lower frame member 12b, and the vertical frame member 12c can be made of a steel material such as channel steel, for example. The cross-sectional shape may be a C-shaped cross section, an H-shaped cross section, a prismatic cross section, or the like, in addition to the groove-shaped cross section. Moreover, you may use an aluminum material instead of steel materials. In short, any member may be used as long as it can maintain the shape as a wall and has a cross-sectional performance capable of supporting a predetermined load as a structural member.

  The vertical brace 13 is configured by joining steel plates 13b to both ends of a flat bar (flat steel) 13a by welding or the like, and welding the plates 13b on both ends to opposite corners of the frame member 12, respectively. By joining using joining members, such as a volt | bolt, it is spanned in the diagonal direction of the load-bearing frame 11. In addition, L-shaped steel etc. can be used instead of a flat bar (flat steel). Moreover, the material can also be an aluminum material like the frame material.

Then, the load-bearing frame 11 constituting the load-bearing panel 10 shown in FIG. 1 is joined to the surface of a predetermined portion of the frame structure constructed by the column member S1 and the beam member S2 as follows.
First, as shown in FIG. 2, the left and right vertical frame members 12c of the load-bearing frame 11 are respectively joined to the column member S1 by bolts T or the like. Thereby, pillar member S1 exhibits the structural performance as a pillar member united with joined vertical frame material 12c. The upper frame member 12a is joined to the beam member S2 (not shown) as necessary, and the lower frame member 12b is also joined to the base member S4 or the beam member S2 when installed on the upper floor as necessary. Is done. If comprised in this way, the vertical brace 13 will be the structure spanned on the diagonal on the predetermined surface of the axial structure constructed | assembled by the column member S1 and the beam member S2.

Moreover, in the building H of this embodiment, as shown in FIG. 3, the horizontal surface is comprised by constructing beam members S2, such as a big beam and a small beam. Then, a horizontal brace 40 is stretched over a predetermined position of the construction surface in order to give a predetermined horizontal rigidity to the structural frame.
The horizontal brace 40 can be, for example, a brace with a turnbuckle capable of adjusting the length by connecting round steels 40a and 40b with a turnbuckle 41. The brace with turnbuckle is usually provided with so-called battledore plates 42 at both ends. Then, after this battledore plate 42 is joined to the opposite corners of the construction surface surrounded by the beam member S2, the turnbuckle 41 is tightened. Thereby, the brace with a turnbuckle is tensioned in the diagonal direction of the construction surface surrounded by the beam member S2.
Note that a brace with a turnbuckle as described above may be used as the vertical brace 13 of the load-bearing frame 11, and a flat bar (flat steel), L-shaped steel, or the like may be used as the horizontal brace 40.

(Sensor configuration)
Next, the sensor 20 installed in the vertical brace or horizontal brace of the structural frame will be described.
In the structural housing of the so-called panel shaft combination structure mainly including the shaft assembly composed of the column member S1 and the beam member S2 and the load-bearing panel 10 having the vertical brace 13 as in the present embodiment, it is caused by an earthquake or a wind. The horizontal load is borne by the load-bearing frame 11 provided with the vertical brace 13 and mainly acts as a tensile load borne by the vertical brace 13. Therefore, by diagnosing the reduced strength state of the vertical brace 13, it is possible to easily and easily diagnose the reduced strength state of the structural housing.

The applicant of the present application pays attention to this, and in order to monitor the strength reduction state of the vertical brace 13, a sensor 20 is installed at a predetermined position of the vertical brace 13, and a simple strength reduction diagnosis of the structural frame in the building is performed. It was configured to be able to perform.
Depending on the direction of the horizontal load, a tensile load is also generated in the horizontal brace 40. Therefore, the sensor 20 is installed also in the horizontal brace 40, and the structural enclosure is diagnosed by adding information about the horizontal brace 40. Also good.

In the present embodiment, a plurality of load-bearing panels 10 are installed in the building H, and accordingly, the vertical braces 13 are installed in a plurality of locations. A plurality of horizontal braces 40 are also installed. The sensor 20 can be installed in all of these braces and checked for all the proof stress reduction states, but more simply, the sensor 20 is set only in the braces provided in the portion where the load is structurally large. To be configured.
As will be described later, identification information, for example, ID, can be given to each sensor in order to associate the arrangement and detection signals of the plurality of sensors 20 installed in each brace. This ID can be stored in, for example, a wireless IC tag connected to each sensor 20 in order to output a detection signal described later.

  In this embodiment, the load-bearing wall is made into a component called the load-bearing panel 10, and the vertical brace 13 can be joined to the load-bearing frame 11 in advance at the factory. Therefore, by installing the sensor 20 in the vertical brace 13 in advance at the stage of manufacturing the load-bearing panel 10 in the factory, it is not necessary to perform the installation work of the sensor 20 on site. Therefore, the construction process is shortened. Moreover, the installation mistake of the sensor 20 is prevented and the diagnostic accuracy is improved.

A structural member made of a metal such as a steel material like the structural casing of the present embodiment is in a fatigue damage state, that is, a proof stress reduction state, according to a stress history generated by an external force. In addition, when a predetermined stress or more is applied, residual deformation occurs in the structural member.
The sensor 20 of the present embodiment is installed on the vertical brace 13 or the horizontal brace 40 where tensile stress is generated by an earthquake, and detects the stress history and deformation state generated in these members. It detects that a fatigue damage state has been reached.

  For example, as shown in FIG. 4, the sensor 20 includes a detection member 21 having a notch 21 a formed in a substantially central portion, and a base member provided between the detection member 21 and the vertical brace 13 to be detected. 22. 4A is a perspective view of the sensor 20, and FIG. 4B is a cross-sectional view taken along line AA in FIG. 4A. The sensor 20 concentrates the force acting on the length range where the sensor 20 is installed on the notch 21 a of the detection member 21. And according to the progress length of the crack which generate | occur | produces in the notch part 21a, it is comprised so that the fatigue damage state of the installed member can be measured.

The detection member 21 has a notch 21a thinner than other portions and is formed to be fragile. Therefore, when a tensile force is applied to the detection member 21 in a direction crossing the notch 21a, a crack G is generated at the tip 21aa of the notch 21a.
That is, when a predetermined tensile force is applied to the detection member 21 based on the deformation generated in the vertical brace 13 by an external force, a crack G is generated in the detection member 21. Then, when an external force is further applied to the vertical brace 13 thereafter, the crack G further develops corresponding to the stress history generated in the vertical brace 13, and the length of the crack G is extended. At this time, the stress history of the vertical brace 13 and the progress length of the crack G are approximately proportional to each other. Therefore, by detecting whether or not the crack G has a predetermined progress length, it is possible to detect whether or not the brace is in a predetermined fatigue damage state.

The base member 22 can be fixed at a predetermined position on the surface of the vertical brace 13, and a recess 22a is formed near the center. The fixing means is not shown in the figure, but may be an adhesive or a fixing member such as a screw. The notch 21a of the detection member 21 is disposed so as to straddle the recess 22a, and both ends of the detection member 21 and both ends of the base member 22 are joined. The base member 22 is made of a material that can be deformed following the deformation of the vertical brace 13.
With such a configuration, when stress is generated and deformed in the vertical brace 13, the deformation generated in a predetermined range on the surface (the pasting region of the base member 22) is transmitted to the detection member 21 through the base member 22. The

  Detection of the growth length of the crack G can be performed by, for example, a known crack growth gauge or a configuration similar to a crack gauge. That is, as shown in FIG. 5A, fine resistance lines R are densely stretched on the crack occurrence surface in a direction intersecting the crack occurrence direction. Thereby, when a crack occurs, the resistance wire R is cut only at the cracked portion. Therefore, the crack length can be measured by measuring the change in resistance value between both ends of the bundle of resistance wires R. Then, a detection circuit 30 (for example, see FIG. 6) that outputs a detection signal when the resistance value exceeds a predetermined value is provided, and the conducting wires R1 and R2 connected to both ends of the resistance wire are connected to the detection circuit 30. Connecting.

  Alternatively, the detection member 21 itself may be formed of a conductive member, and terminals may be provided on both sides of the portion where the crack G should occur to be connected to the detection circuit 30. In this case, a circuit is formed using the detection member 21 itself as a resistance wire. Even in such a configuration, since the resistance value changes based on the change in the length of the crack G as in the case where the resistance wire R is provided, the crack G has been extended beyond a predetermined length of progress. In some cases, a detection signal can be output.

  Further, for example, as shown in FIG. 5B, the detection member C <b> 1 and the contact C <b> 2 may be provided on the surface of the detection member 21 so as to cross a predetermined crack length position. The detection terminal C1 and the contact C2 are connected to the conducting wires R1 and R2 connected to the detection circuit 30, respectively. In this configuration, when the crack G has not reached the predetermined contact position, the detection terminal C1 contacts the contact C2 and the detection circuit 30 is energized. On the other hand, when the crack G progresses beyond this contact position, the detection terminal C1 moves away from the contact C2 and becomes non-contact, and the detection circuit 30 is turned off. If the detection circuit 30 is configured not to output the detection signal to the outside in the energized state and to output the detection signal to the outside in the energized cut-off state, the crack G is extended beyond a predetermined length of progress. In this case, a detection signal can be output.

As described above, the detection circuit 30 is configured to output a detection signal to the outside when the member on which the sensor 20 is installed is in a predetermined proof strength reduction state. The detection circuit 30 can be integrated with the sensor 20. Moreover, it can install in the desired position which can be connected by conducting wire R1, R2.
In addition, you may comprise the edge part of conducting wire R1, R2 as a terminal which can be connected from the outside, without installing the detection circuit 30 beforehand. In this case, it is also possible to directly check the energization of each sensor and the resistance value by a tester or the like to diagnose the proof stress reduction state.

  The detection signal output from the detection circuit 30 can be output to the outside via a lamp line or various signal lines. However, it is not preferable to connect wirings to the sensors 20 on the structural frame, because the configuration becomes complicated. Therefore, it is also possible to use a means capable of transmitting / receiving information to / from the management device using radio waves, such as a known wireless IC tag, and outputting a detection signal using radio waves.

  For example, the detection circuit 30 is connected to or integrated with the semiconductor chip of the wireless IC tag 31 (see FIG. 6). The wireless IC tag 31 can receive a command transmitted by a wireless signal from the outside, and can transmit the detection signal to the outside if the detection signal is output from the detection circuit 30 based on the command. At this time, it can be transmitted together with the ID of each sensor stored in the wireless IC tag 31. Thereby, arrangement | positioning of the sensor 20 and a detection signal are matched.

  In addition, the detection circuit 30 needs to be supplied with electric power. However, the detection circuit 30 may be configured as a power saving circuit in order to operate for an extended period of time with an internal power source such as a battery without being connected to an external power source. Good. That is, it can be configured to keep a balance with a weak power during normal times and to send a signal only when a change is detected. Further, as the internal power source, for example, a lithium battery that can maintain power supply for a long time is used. Further, like the wireless IC tag 31, a current may be generated by irradiation of electromagnetic waves from the outside, and an internal power supply may be completely unnecessary.

  Further, as described above, the detection signal only needs to identify the presence / absence of energization and whether or not the resistance value exceeds a predetermined value. Good. Therefore, the configuration of the detection circuit and the configuration for processing the detection signal can be simplified. Therefore, it can be installed at low cost. However, it is a matter of course that the signal may include more detailed information about the state of the structural member. For example, it may be an analog signal whose level changes according to the amount of deformation or the degree of fatigue damage.

  The detection signal output from the detection circuit 30 can be received and checked by a diagnostic device brought by an inspector who has visited the earthquake-resistant diagnosis at the time of after- maintenance or a disaster, for example. In addition, it can be received and displayed by a predetermined terminal or a monitoring panel at a management center such as a housing company or a management consignment company that undertakes management of a building via a communication line such as the Internet or a dedicated line, and can be checked. It can also be configured so that it can be received and displayed by a control panel such as home security and energy monitoring installed in the building H and checked by the building user himself.

  These diagnostic devices, terminals, monitoring panels, control panels, and the like are equipped with a control device in which a diagnostic program for diagnosing structural structural deterioration in a sensor or a structural member in which a sensor is installed is stored based on the received detection signal. Can be configured. As a result, not only the received detection signal is displayed as it is, but also the diagnosis of the structural strength reduced state of each structural member or part of the building or the entire structure is performed based on the detection signal, and the diagnosis result can be displayed. it can. In addition, when these devices are connected to a communication line and diagnosed as having a predetermined structural strength reduction state, information is automatically transmitted to a terminal such as a mobile phone or information is transmitted to a server on the Internet. The resident may be able to confirm the diagnosis result.

The processing and display of the detection signal in each of the above devices may be performed as follows, for example.
For example, in a list of structural members where a sensor is installed or a drawing of a structural case, a “detection” mark is displayed only for members for which a detection signal is output, and a “detection” mark is displayed for a member for which no detection signal is output. A display method of not displaying is conceivable. At this time, if an analog signal containing information on the amount of deformation or the degree of fatigue damage is received as a detection signal, the degree of deformation or damage is diagnosed according to the content of the signal, and the degree of deformation or damage Can be displayed. Thereby, it is possible to quickly check a member in which a predetermined deformation or damage has occurred.

Further, in order to diagnose the structural strength reduction state of all or part of the structural frame, for example, it is determined by the diagnostic program that a predetermined deformation or damage has occurred from the structural frame of the building H by the detection signal. Assuming a structural body from which a structural member has been deleted, it is conceivable to perform a structural calculation on the deleted structural body and check it. As a result, if it is determined that the design load is not safe, an indication to that effect may be considered.
In addition, based on the data regarding the deformation | transformation and damage on a structural frame, it can also diagnose and check the occurrence conditions, such as ground subsidence, by a predetermined program. In addition to this, it can be used for various purposes.

  The detection signal can be transmitted together with the ID of each sensor stored in the wireless IC tag 31 as described above. Accordingly, map information in which the ID of the sensor and the identification information of the installed position or the installed structural member are previously associated is stored in a control device such as a diagnostic device, a terminal, a monitoring panel, or a control panel. Thus, it is possible to automatically create a distribution as to which position of the structural member on the structural body is in a fatigue damage state and perform diagnosis. Therefore, simple diagnosis can be automated, and diagnosis can be performed quickly and easily.

In the present embodiment, based on the diagnosis of each structural member, diagnosis can be performed at various levels according to the purpose, such as diagnosis for each part of the structural casing and diagnosis of the entire structural casing. Therefore, diagnosis can be performed for various purposes according to demands during after-sales maintenance.
In addition, by displaying the diagnosis result of the structural member and the structural frame on the diagnostic device, terminal, monitoring panel, control panel and the like as described above, it is possible to check the structural strength by the building user or the resident himself. . In addition, a business operator who undertakes maintenance management can monitor whether the structural strength is normal or abnormal online. Therefore, the anxiety about the structural safety of the building user or the resident can be eliminated.

  In addition, the sensor 20 is not limited to each said structure, A displacement switch and a displacement sensor may be used. In the sensor 20 described above, since the crack G develops according to the stress history, it is possible to diagnose a decrease in yield strength based on the stress history generated in the structural member. However, more simply, it is also possible to detect a temporary displacement amount or residual deformation of the structural member by a displacement switch or a displacement sensor and perform a proof stress reduction diagnosis based on this. The displacement switch or the displacement sensor only needs to be able to output a detection signal in accordance with a predetermined deformation or more of the structural member. For example, a known disconnection detection switch or contacts are brought into contact with or separated from each other to be turned on / off. Limit switches and magnetic proximity switches can be used.

(Simple building diagnostic system)
Next, a description will be given of the configuration and operation of a system for performing a simple proof stress reduction diagnosis of a structural structure of a building using each configuration described above.

(First form: Visit diagnosis system)
The simple diagnosis system U1 of the present embodiment is such that an inspection person who receives a request from a building user brings a receiving device to the building H and visits the site to make a diagnosis. As shown in FIG. 6, this simple diagnostic system has a sensor 20, a detection circuit 30, and a diagnostic device 50 as main components.
The diagnostic device 50 includes a communication unit 51 that can receive a signal from the detection circuit 30, a control unit 52 including a control unit 52a such as a CPU for performing various processes, and a display unit such as a liquid crystal panel. 53 and an operation unit 54 having input means such as a keyboard and an input panel for performing various inputs are mainly configured.

The communication unit 51 is configured according to the output mode of the signal from the detection circuit 30. For example, when the detection signal is output as a radio wave of a predetermined frequency band via the wireless IC tag 31, the antenna is configured to include an antenna capable of receiving the radio wave of the frequency band in a predetermined field range. . The communication unit 51 can transmit a detection signal request command using a radio wave to the wireless IC tag 31 connected to the detection circuit 30.
In addition, when a detection signal is output via wiring, such as an electric lamp line and various signal lines, the communication part 51 can be set as the structure provided with the terminal connectable to the wiring.

The control unit 52 performs a process of receiving a detection signal from the communication unit 51 based on the operation signal from the operation unit 54. Moreover, the process which displays the received signal and the result of a diagnosis on the display part 53 in a predetermined | prescribed aspect is performed.
The control unit 52 includes storage means 52b such as a ROM, RAM, and HDD that stores various data and programs, and can perform processing based on these data and programs. For example, the storage unit 52b stores map data in which the IDs assigned to the plurality of sensors 20 and the arrangement on the structural frame are registered in association with each other. The storage unit 52b stores a predetermined program for performing a proof stress reduction diagnosis based on the detection signal.

Next, a simple diagnosis procedure by the system using each of the above configurations will be described with reference to the flowchart shown in FIG.
First, the detection signals output from the detection circuit 30 connected to each sensor 20 are collected.
That is, the antenna of the communication unit 51 is set so that transmission / reception is possible so that a predetermined part of the building H is within the field range, and the person inspecting the operation inputs an operation from the operation unit 54. Based on this, the control unit 52 transmits detection signal request data to the wireless IC tag 31 connected to or integrated with the detection circuit 30 (step S1). Next, when the detection signal is output from the detection circuit 30, the wireless IC tag 31 that has received the detection signal request data returns this detection signal to the diagnosis device 50, and the diagnosis device 50 receives this detection signal. Is performed (step S2). At this time, information obtained by adding the ID of the sensor 20 to the detection signal can also be transmitted.
The steps S1 and S2 correspond to the detection signal collecting process of the present invention.

  Subsequently, the control unit 52 performs a process of diagnosing the fatigue damage state of each brace where the sensor 20 is installed based on the detection signal received by the communication unit 51 (step S3). In the present embodiment, the detection signal is on / off information that is transmitted only when the crack G is longer than a predetermined length, that is, when it is in a fatigue damage state greater than or equal to the predetermined length. Therefore, in this determination, the detection signal is received. Then, it is determined that the brace is in a fatigue damage state, and if the detection signal is not received, it is determined that the brace is not in a fatigue damage state. This step S3 corresponds to the structural member diagnosis step of the present invention.

  In this embodiment, the sensor 20 is installed in a plurality of braces. When collecting the data for all of them and determining the fatigue damage state, the data is collected so that all the sensors 20 are in the field range or while moving the field range. When it is desired to diagnose only the part, only the data corresponding to the necessary sensor 20 may be collected.

  Subsequently, the control unit 52 performs the strength reduction diagnosis created in advance based on the diagnosis result of step S3, the structural design data at the time of construction of the building H, the map information indicating the arrangement of the braces where each sensor is installed, and the like. According to the program, a process for diagnosing a decrease in the proof stress of the structural frame of the building H is performed according to the purpose (step S4). This step S4 corresponds to the structural body diagnostic step of the present invention.

  Then, the control part 52 performs the process which displays the diagnostic result of step S4 on the display part 53 (step S5). The diagnosis result can be displayed, for example, according to the necessity of repair work. In addition, it can be displayed according to the categories such as repair unnecessary, repair possible by repair, and rebuilding required. In addition, it is possible to display by classification such as how much seismic force is applied next and collapse. It is also possible to display a map of the fatigue damage state of each brace determined in step S3. It can also be displayed along with an estimate of the period and cost required for repair.

  As described above, the sensor 20 and the detection circuit 30 that detects a change in the state of the sensor and outputs a detection signal are installed in advance on the brace of the structural frame of the building, and the detection signal output by the detection circuit 30 By making it possible to collect the data, it is possible to easily and quickly collect the data on the fatigue damage state of the structural frame of the building only when necessary in the event of a disaster such as an earthquake or during a periodic inspection. And since a simple diagnosis can be performed based on this data, the simple diagnosis regarding the proof stress reduction state of a building can be performed easily and rapidly.

  In this example, the diagnostic device 50 is integrally configured. However, a reading device such as a known tag code reader having a configuration corresponding to the communication unit 51 and the operation unit 54 is used as a data collection device. Data collected from this data collection device may be transmitted to a portable terminal such as a notebook computer, and diagnosis and result display may be performed by a program installed in the portable terminal.

(Second form: Online diagnostic system)
The simple diagnosis system U2 of the present embodiment is a system in which a housing company or a management contract company that receives a request from a building user performs an earthquake resistance diagnosis online. Only differences from the simple diagnosis system U1 that performs the visit diagnosis described in the first embodiment will be described below.
As shown in FIG. 8, the simple diagnostic system U <b> 2 is configured such that the diagnostic device 150 and the detection circuit 30 communicate with each other via the communication device 60 and the communication line I installed in the building H. That is, the simple diagnostic system U2 has the sensor 20, the detection circuit 30, the diagnostic device 150, and the communication device 60 as main components.

  The diagnostic apparatus 150 of this example is installed in a management center such as a housing company or a management contract company that undertakes management of a building. The communication device 60 receives an input of a detection signal collection instruction command from the diagnostic device 150 via the communication line I. Then, in response to the input of the detection signal collection instruction command, processing for transmitting the detection signal request data described in the first embodiment from the communication device 60 to each sensor 20 is performed. And the communication apparatus 60 performs the process which receives the detection signal returned from the sensor 20 which received the detection signal request data.

Subsequently, the communication device 60 transmits the received detection signal to the diagnostic device 150 via the communication line I. The diagnostic device 150 receives this data via the communication unit 151 including a modem or the like. And the point which performs various diagnoses and a display based on the received detection signal is the same as that of the said simple diagnostic system U1.
The diagnostic device 150 may be configured to transmit a diagnostic result to a server in the management center so that the diagnostic information can be confirmed via a communication line such as the Internet. In addition, when a predetermined diagnosis result is obtained, information may be transmitted to a terminal such as a building owner or a resident's mobile phone via this server. In addition to receiving the detection signal collection instruction command from the diagnosis device 150, the communication device 60 may collect detection information based on a preprogrammed diagnosis schedule and transmit the detection information to the diagnosis device 150.

  With the configuration of this example, structural safety can be periodically checked at the management center, and the information can be provided to the user or owner of the building. Therefore, anxiety about structural safety can be eliminated.

It is explanatory drawing which shows the building of an Example, and its structural frame. It is explanatory drawing which shows the brace and load-bearing frame of an Example. It is a perspective view which shows the horizontal brace of an Example. It is explanatory drawing which shows the structure of the sensor of an Example. It is explanatory drawing which shows the structure of the sensor of an Example. It is explanatory drawing which shows the structure of the simple diagnostic system of the building of an Example. It is a flowchart which shows the flow of a process by the simple diagnosis system of the building of an Example. It is explanatory drawing which shows the structure of the simple diagnosis system of the building of another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Strength panel 11 ... Strength frame 12 ... Frame material 12a ... Upper frame material 12b ... Lower frame material 12c ... Vertical frame material 12d ... Middle rail 13 ... Vertical brace 13a ... Flat bar 13b ... Plate 20 ... Sensor 21 ... Detection member 21a ... Notch 21aa ... Tip 22 ... Base member 22a ... Recess 30 ... Detection circuit 31 ... Wireless IC tag 40 ... Horizontal brace 40a, 40b ... Round steel 41 ... Turnbuckle 42 ... ... battledore plates 50, 150 ... diagnostic devices 51, 151 ... communication unit 52 ... control unit 52a ... control unit 52b ... storage unit 53 ... display unit 54 ... operation unit 60 ... communication device C1 ... detection terminal C2 ... ... Contact G ... Crack H ... Building I ... Communication line R ... Resistance wire R1, R2 ... Conductor S ... Structural housing S1 ... Column member S2 ... Beam member S3 ... Truss S4 ... Base member T ... Bo Door U1, U2 ... simple diagnostic system

Claims (10)

A load-bearing panel joined to a steel frame and constituting a structural frame of a building together with the steel frame,
A brace and a detecting means installed on the brace,
The detection means is configured to be in a predetermined detection state based on detection of a predetermined deformation of the brace or a predetermined stress history generated in the brace, and configured to output a detection signal in the detection state,
The load-bearing panel, wherein the detection signal is used as diagnostic information for diagnosing whether a part or the whole of the structural housing is in a predetermined load-bearing state. A building having a structural frame provided with a steel frame and a brace, and a detection means installed on the brace,
The detection means is configured to be in a predetermined detection state based on detection of a predetermined deformation of the brace or a predetermined stress history generated in the brace, and configured to output a detection signal in the detection state,
The building according to claim 1, wherein the detection signal is used as diagnostic information for diagnosing whether or not a part or the whole of the structural frame is in a predetermined reduced strength state. A detection means installed on a structural member constituting the structural frame of the building, and a diagnostic means configured to be able to communicate or connect to the detection means,
The detection means enters a predetermined detection state based on detection of a predetermined deformation of the structural member or a predetermined stress history generated in the structural member, and can output a predetermined detection signal in the detection state. Composed of
The diagnostic means acquires the detection signal from the detection means according to an operation signal input from the outside, and diagnoses a fatigue damage state of the structural member based on the detection signal Simple diagnostic system.   4. The building according to claim 3, wherein the diagnosis unit diagnoses whether or not a part or the whole of the structural casing is in a predetermined strength reduction state based on a diagnosis result of the structural member. Simple diagnostic system. The detection means includes a detection circuit that is energized in the detection state and is de-energized in a state that is not the detection state,
The detection signal is output based on energization of the detection circuit,
The said diagnostic means diagnoses whether the said structural member is a predetermined fatigue damage state based on the presence or absence of the output of the said detection signal, The simple diagnosis system of the building of Claim 3 characterized by the above-mentioned. A plurality of the detection means are installed in the structural housing,
In the detection signal, identification information that can identify the detection means that is the transmission source is stored,
4. The map information for associating the identification information with a position on the structural body of the detection means specified by the identification information is stored in the diagnosis means. A simple diagnostic system for buildings.   The diagnostic means displays a diagnostic result on a monitoring panel installed in the building or a terminal or monitoring panel installed in a business office of a business operator who undertakes maintenance management of the building. The simple diagnosis system of the building as described in any one of Claims 6 thru | or 6.   The said structural member consists of braces, The simple diagnosis system of the building as described in any one of Claim 3 thru | or 5 characterized by the above-mentioned. The structural frame includes a steel frame and a load bearing wall,
9. The simplified building diagnostic system according to claim 8, wherein the brace is composed of a vertical brace suspended over a frame of a load-bearing panel constituting the load-bearing wall. A simple diagnostic method for a building for diagnosing a fatigue damage state of a structural member constituting a structural frame of a building by the simple diagnostic system for a building according to any one of claims 3 to 9,
A detection signal output based on detection of a predetermined deformation history of the structural member or a predetermined stress history generated in the structural member by the detection means installed in the structural member constituting the structural frame of the building, the detection signal A diagnostic means configured to be communicable with or connectable to the means, and a detection signal collecting step that is acquired in response to an operation signal input from the outside;
The diagnostic member diagnoses the fatigue damage state of the structural member based on the detection signal collected in the detection signal collecting step; and
The diagnostic means performs a structural body diagnosis step of diagnosing whether or not a part or the whole of the structural body is in a predetermined strength reduction state based on a diagnosis result in the structural member diagnosis step. A simple diagnostic method for buildings.

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