JP6376235B1 - Measuring system and displacement measuring device - Google Patents

Abstract

To provide a measurement system and a displacement measuring device capable of measuring a situation with high accuracy even when a displacement, particularly a large interlayer displacement, is caused in a building due to a shake such as an earthquake. A vertical gutter 100 attached between a lower floor and an upper floor of a building, and a long shape that is attached obliquely between the vertical gutter 100 and a lower floor or an upper floor and can be expanded and contracted in the longitudinal direction. The displacement measuring device 1 is used, which includes the diagonal member 101 and the measuring device 102 that measures the expansion and contraction displacement of the diagonal member 101. Then, the inter-layer displacement derived from the expansion / contraction displacement measured by the measuring instrument 102 based on the relationship between the inter-layer displacement between the lower floor and the upper floor exceeds the reference value set based on the threshold regarding damage to the building. In case, the warning about building damage is output. The relationship between expansion / contraction displacement and interlayer displacement is linearly approximated. [Selection] Figure 2

Description

  The present invention relates to a measurement system that measures the displacement of a building and a displacement measurement device that can be used in such a measurement system.

  Measuring equipment is installed in the building, the situation of the shaking, deformation, etc. of the building is estimated against the shaking of the earthquake, etc., the input of the situation of damage, deterioration, etc. is accepted, and multiple buildings A monitoring system for homes that collects and analyzes the situation is proposed. The applicant of the present application has proposed a housing structure monitoring system in which a resident of a building inputs information such as damage and deterioration of the building in addition to the measuring device arranged in the building (Patent Document 1).

  In addition, the applicant of the present application has proposed a displacement measuring device that uses diagonal materials that are attached obliquely between the lower and upper floors and extend and contract in the axial direction as measuring equipment for measuring the shaking of the building. (Patent Document 2).

  In general, when a building shakes such as an earthquake, a rectangular frame surrounded by columns and beams is deformed into a parallelogram. Correlation between the displacement measured by the movable part of the measuring jig attached to the building and the inter-layer deformation of the building when the column and beam are deformed while maintaining their geometrical elements such as length and linearity The measurement displacement and the interlayer deformation can be linearly approximated.

JP 2006-164703 A Japanese Patent Application Laid-Open No. 2006-109611

  The inventors of the present application further improve the technique disclosed in Patent Document 1 and Patent Document 2 described above, and improve the measurement accuracy of the displacement of the building, particularly in a situation such as a large earthquake in which the building may be greatly deformed. We tackled it as an issue.

  The present invention has been made in view of such circumstances. A vertical fence is attached between a lower floor and an upper floor of a building, and further, an oblique member that can be expanded and contracted with respect to the vertical fence is attached. Measure expansion and contraction displacement. As a result, even if there is a displacement in the building, especially when a large inter-layer displacement occurs, the linearity between the expansion / contraction displacement (measurement displacement) and the inter-layer displacement is maintained over a wide range, but it is simple but high. An object is to provide a measurement system capable of obtaining the interlayer displacement with high accuracy.

  Another object of the present invention is to provide a displacement measuring device used in the measuring system according to the present invention.

  In order to solve the above problem, a measurement system described in the present application includes a vertical gutter attached between a lower floor and an upper floor of a building, and an intermediate portion of the vertical gutter between the lower floor or the upper floor. A diagonal member attached obliquely and stretchable in the longitudinal direction, and a measuring instrument for measuring expansion and contraction displacement of the diagonal member, the upper and lower ends of the vertical rod are horizontal members constituting the lower and upper floors of the frame. It is joined to the frame member by a joining form that can be regarded as a pin node, and the upper and lower ends of the diagonal member are pin nodes to the vertical member and the horizontal member constituting the lower or upper floor frame. It is characterized by being joined by an appreciable joining form.

In the measurement system, the diagonal member is attached obliquely at an angle of 10 ° or more with respect to the vertical shaft .

Further, in the measurement system, based on a linear approximation relationship between the expansion / contraction displacement and the interlayer displacement between the lower floor and the upper floor, the interlayer displacement derived from the expansion / contraction displacement measured by the measuring instrument is the building When the reference value set based on the threshold value regarding damage to the building exceeds a threshold value, output means is provided for outputting the building damage .

In the measurement system, the reference value with which the output means outputs the damage to the building is set based on a value corresponding to an interlayer deformation angle at which a derived interlayer displacement is ± 1/30 (rad) or more. It is characterized by being.

Further, in the measurement system, further comprising a pre-Symbol instruments that can communicate an output device, the output device, characterized by comprising the output means.

  Further, the measurement system further includes an information processing device capable of communicating with the plurality of output devices.

  Furthermore, the displacement measuring device described in the present application can be used in the measuring system, and includes the downpile, the diagonal member, and the measuring instrument.

  Furthermore, the displacement measuring device described in the present application can be installed between a vertical gutter that can be attached between a lower floor and an upper floor of a building, and a slant between the middle part of the vertical gutter and the lower or upper floor. A diagonal member that can be expanded and contracted in the longitudinal direction, and a measuring instrument that measures the expansion and contraction displacement of the diagonal member, wherein the upper and lower ends of the vertical frame constitute a frame of the lower and upper floors. The upper and lower ends of the diagonal member can be regarded as pin nodes with respect to the vertical member and the horizontal member constituting the lower or upper floor frame. It is characterized by being joined according to the joining form.

  The above-described measurement system and displacement measurement apparatus can measure a relatively large interlayer displacement with high accuracy.

  The present invention is a vertical gutter attached between a lower floor and an upper floor of a building via a pin node, and is attached obliquely via a pin node between a middle part of the vertical gutter and a lower floor or an upper floor. The displacement of the building is measured using a diagonal material that can be expanded and contracted in the longitudinal direction and a measuring instrument that measures the expansion and contraction displacement of the diagonal material. As a result, even if the installation space for the displacement measuring device is small, the linearity of the diagonal expansion and contraction displacement and the interlayer displacement of the building is maintained over a wide range, and the measurement accuracy for the interlayer displacement of the building, especially the large interlayer displacement, is maintained. It is possible to improve the effect, such as excellent effects.

It is explanatory drawing which shows typically an example of the outline | summary of the measurement system described in this application. It is the schematic which shows an example of the displacement measuring device used with the measuring system of this application description. It is the schematic which shows an example of the measuring device of the displacement measuring device used with the measuring system of this application description. It is a block diagram which shows roughly the structural example of the displacement measuring device and input / output device which are used with the measuring system of this-application description. It is a block diagram which shows roughly the example of a structure of the information processing apparatus and terminal device which are used with the measurement system of this application description. It is explanatory drawing which shows an example of the characteristic of the displacement measuring device described in this application. It is explanatory drawing which shows an example of the characteristic of the displacement measuring device described in this application. It is explanatory drawing which shows an example of the characteristic of the displacement measuring device for a comparison. It is the schematic which shows an example of the displacement measuring device used with the measuring system of this application description. It is the schematic which shows an example of the displacement measuring device used with the measuring system of this application description. It is the schematic which shows an example of the displacement measuring device used with the measuring system of this application description.

  Hereinafter, embodiments of the present invention will be described in detail. The following embodiment is an example embodying the present invention, and is not intended to limit the technical scope of the present invention.

<System overview>
FIG. 1 is an explanatory diagram schematically illustrating an example of an outline of a measurement system described in the present application. FIG. 1 shows an example in which the measurement system described in the present application is applied to a housing structure monitoring system that analyzes the state of a building against a shake such as an earthquake using a displacement measuring device 1 that measures the displacement of the building.

  In the measurement system illustrated in FIG. 1, when a building such as a detached house or an apartment house is in a disaster such as an earthquake, various information such as information on the disaster and information on the response to the disaster is provided to the residents of the building. To do. Such services are provided for customers such as residents living in buildings by a management entity that develops various businesses such as housing, construction, and information provision.

  For example, when a disaster such as an earthquake occurs, the management entity diagnoses the situation such as the disaster situation and the damage situation from various information such as the measurement result of the displacement measuring device 1, and diagnoses the residents of the building Provide various information such as disaster and damage information based on the results and diagnosis results. In addition, the management entity collects door-to-door damage information indicating the state of damage from each house in the building, taking into account the collected door-to-door damage information, and more accurately and precisely grasping the situation, Providing residents with more useful information such as disaster and damage information.

  A displacement measuring device 1 is disposed on each floor of the building. The displacement measuring device 1 is disposed for each door or floor and is connected to the input / output device 2 so as to be communicable. The input / output device 2 disposed in each house is connected to a network NW such as a dedicated network, a VPN (Virtual Private Network), or the Internet. The displacement measuring device 1 can be configured to be connected to the network NW, and communication between the input / output device 2 and the displacement measuring device 1 can be performed via the network NW.

  An information processing device 3 using a computer such as a server computer is connected to the network NW, and the information processing device 3 is managed by a management business entity. The information processing device 3 receives various information such as measurement results measured by the displacement measuring device 1 from buildings in various regions via the network NW, and records the received information. Also, the recorded information is appropriately used by the management entity for purposes such as structural diagnosis.

  The management entity manages the terminal device 4 operated by the operator, and the terminal device 4 can communicate with the input / output device 2 and the information processing device 3 via the network NW.

  As such an input / output device 2, it is not always necessary to use a dedicated device. For example, a computer with a display used in a home energy management system called HEMS (Home Energy Management System) can be used. In other words, the applicants of the present application have proposed a smart house that combines a housing structure monitoring system and a home energy management system.

<Configuration of each device>
FIG. 2 is a schematic diagram showing an example of a displacement measuring apparatus 1 used in the measuring system described in the present application. Fig.2 (a) is a front view, FIG.2 (b) is a top view in an AB cross section, and FIG.2 (c) is a right view. For example, the displacement measuring apparatus 1 is used for daily living, including pipe spaces, meter boxes, storage rooms, equipment machine rooms, and walls in outer walls and partition walls in each floor of detached houses and apartment houses. It is arranged in a non-residential space, etc. that is not conspicuous and is partitioned from the space.

  The displacement measuring apparatus 1 includes a vertical gutter 100 that is attached substantially vertically between a lower floor and an upper floor of a building, and a telescopic slant that is obliquely attached between an intermediate portion of the vertical gutter 100 and a lower floor. A material 101 and a measuring instrument 102 that measures the expansion and contraction displacement of the diagonal material 101 are provided.

  The vertical fence 100 is formed by using a long and narrow bar-like member, and the upper and lower ends thereof are horizontal members such as beam members, foundations, purlins, floor slabs, etc. (stiff floor materials having rigidity) on the lower and upper floors, respectively. And a horizontal member such as an underfloor material) in a joining form that can be regarded as a pin node. A pin node is a node that can be treated as structurally mechanically transmitting axial and shearing forces but not transmitting bending moments. The vertical rod 100 illustrated in FIG. 2 is formed using a square steel pipe having a width of several centimeters. A joint member 100b having a cross-shaped cross section is welded to the upper and lower ends of the vertical rod 100 via a sealing end plate 100a welded so as to close the tube end opening of the square steel pipe. The parts are joined to the flanges of the beam member 60 made of H-shaped steel on the lower floor and the upper floor by bolts and nuts, respectively, via flat end plates 100c welded to the ends.

  The diagonal member 101 is disposed so as to form an angle of, for example, about 20 ° with respect to the vertical rod 100 from the middle portion of the vertical rod 100 to the beam member 60 on the lower floor. The diagonal member 101 is formed so that the entire length can be expanded and contracted by inserting a substantially cylindrical inner cylinder member 101b inside a substantially cylindrical outer cylinder member 101a so as to be slidable with respect to each other. Yes. A slit is formed at the upper end of the diagonal member 101 so as to open in the end of the diagonal member and extend in the axial direction. A flat plate-like joining plate 101c is inserted into the slit and welded. The joining plate 101c is a diagonal material in the weak axis direction (plate thickness direction) of the joining plate 101c with respect to the flat mounting plate 100d projecting sideways from a position about 2/5 from the bottom of the vertical rod 100. Welding is performed in a direction not constraining displacement of the tilt angle of 101 (a direction perpendicular to the material axis of the diagonal member 101 in the plane of FIG. 2A).

  Similarly to the upper end, the lower end of the diagonal member 101 is formed with a slit that opens in the end of the material and extends in the axial direction, and a flat joining plate 101d is inserted into the slit and welded. The joining plate 101d has a weak axial direction (the plate) of the joining plate 101d with respect to the flat mounting plate 60a projecting on the upper surface of the beam member 60 on the lower floor at a predetermined distance from the lower end of the vertical rod 100. The thickness direction is welded in a direction (same as above) in which the displacement of the inclination angle of the diagonal member 101 is not constrained. As a result, the upper and lower ends of the diagonal member 101 are respectively joined to the vertical rod 100 and the beam member 60 on the lower floor in a bonding form that can be regarded as a pin node.

  FIG. 3 is a schematic diagram showing an example of the measuring instrument 102 of the displacement measuring apparatus 1 used in the measuring system described in the present application. The measuring instrument 102 has a substantially cylindrical shape, and is attached to the inner cylinder member 101 b via a holder 1020 so as to be substantially parallel to the diagonal member 101. From the distal end of the measuring instrument 102 on the outer cylinder member 101a side, a bar-shaped measuring element 1021 protrudes in a biased state in parallel with the diagonal member 101, and the leading end of the measuring element 1021 is arranged on the side surface of the outer cylindrical member 101a. It is in contact with or fixed to the substantially L-shaped measuring piece 1022 provided. A cable including various communication lines is connected to the rear part of the measuring instrument 102, and is connected to the input device and / or the information processing device 3.

  In the displacement measuring apparatus 1 configured in this way, when an interlayer displacement occurs due to an earthquake or the like between the upper floor and the lower floor, the interlayer displacement is regarded as an expansion / contraction displacement of the diagonal member 101 included in the displacement measuring apparatus 1. measure. The measured expansion / contraction displacement of the diagonal member 101 is transmitted as a measurement result to devices such as the input / output device 2 and the information processing device 3.

  FIG. 4 is a block diagram schematically showing a configuration example of the displacement measuring device 1 and the input / output device 2 used in the measuring system described in the present application. The displacement measuring apparatus 1 described above is disposed on each floor or each door, and includes various configurations such as a measuring unit 10, a calculating unit 11, a connecting unit 12, a communication unit 13, and the like.

  The measuring unit 10 includes various members such as the above-mentioned downarm 100, the diagonal member 101, and the measuring instrument 102, and detects the expansion / contraction displacement of the diagonal member 101 as an interlayer displacement.

  The calculation unit 11 is built in the measuring instrument 102, for example, and performs a simple calculation to convert the measured expansion / contraction displacement into an interlayer displacement (or interlayer deformation angle). The calculation performed by the calculation unit 11 is a calculation using a linear function performed on the premise that the expansion / contraction displacement is linearly approximated to the interlayer displacement. By adopting a simple configuration capable of executing only simple calculations, it can be expected to increase resistance to vibration, impact, and deformation caused by shaking such as an earthquake. In addition, since the calculation is simple, it is possible to execute the calculation at high speed. It is also possible to convert to an interlayer deformation angle instead of the interlayer displacement.

  The connection unit 12 is a communication circuit configured using a communication adapter and its attached circuit, and is connected to the input / output device 2 via a connection line included in the cable so as to be communicable.

  The communication unit 13 is a communication circuit configured using a communication adapter and its attached circuit, and is communicably connected to the network NW via a communication line included in the cable.

  The input / output device 2 provided for each apartment house includes a control unit 20, a recording unit 21, a storage unit 22, a communication unit 23, a connection unit 24, an input unit 25, a display unit (image output unit) 26, and an operation unit. 27, various components such as an audio output unit 28 are provided. The user interfaces such as the input unit 25 and the display unit 26 may be connected to the input / output device 2 as separate devices.

  The control unit 20 includes various circuits such as an information processing circuit, a timing circuit, and a register circuit, and is a circuit such as a CPU (Central Processing Unit) that executes processing for controlling each unit in the apparatus.

  The recording unit 21 is a circuit composed of a magnetic recording medium such as a hard disk drive and a non-volatile memory such as a semiconductor recording medium, and records various information such as various programs and data.

  The storage unit 22 is a circuit configured using a volatile memory, and temporarily stores data generated when various programs are executed. For the sake of convenience, the recording unit 21 and the storage unit 22 are illustrated as different configurations, but may be configured with a single circuit, and their functions may be mutually complemented.

  The communication unit 23 is a communication circuit configured using a communication adapter and its attached circuit, and is connected to the network NW through a device such as a router (not shown).

  The connection unit 24 is a communication circuit configured using a communication adapter and its attached circuit, and is connected to the displacement measuring device 1 so as to be communicable.

  The input unit 25 and the display unit 26 are configured using a touch panel display in which a thin plate-like input unit 25 that detects contact or approach of a finger or a support and a thin-film display unit 26 such as a liquid crystal panel are stacked. ing. Then, the display unit 26 displays and outputs a warning that there is a possibility that the building is seriously damaged.

  The operation unit 27 is an input man-machine interface configured using various buttons such as a power button and other input components.

  The audio output unit 28 is an output man-machine interface configured using components such as a speaker that outputs audio.

  FIG. 5 is a block diagram schematically showing a configuration example of the information processing device 3 and the terminal device 4 used in the measurement system described in the present application.

  The information processing apparatus 3 includes various mechanisms such as a control unit 30, a recording unit 31, a storage unit 32, and a communication unit 33. The recording unit 31 records various information such as information about each building, information about each door, information about measurement results measured by each displacement measuring device 1, information about damage, and information indicating a response status to damage.

  The terminal device 4 includes various mechanisms such as a control unit 40, a recording unit 41, a storage unit 42, an input unit 43, an output unit 44, and a display unit 45. The input unit 43 is an input man-machine interface such as a keyboard and a mouse. The output unit 44 is an output man-machine interface that emits sound and light in an emergency. The display unit 45 is an output man-machine interface such as a monitor.

<Process overview of each device>
In the measurement system configured as described above, when a shaking such as an earthquake occurs and an interlayer displacement occurs between the upper floor and the lower floor with respect to the floor where the displacement measuring device 1 is disposed, the vertical shaft 100 is It swings and the diagonal member 101 expands and contracts. The measuring instrument 102 measures the expansion / contraction of the diagonal member 101 as an expansion / contraction displacement, and transmits the measurement result to the information processing apparatus 3 connected to the input / output device 2 and / or the network NW. When the input / output device 2 determines that the interlayer displacement based on the measurement result exceeds a predetermined reference value, the input / output device 2 outputs an output to warn the resident that the interlayer displacement exceeds the reference value. This is done from the output unit 28. In addition, the information processing device 3 determines whether or not a large earthquake has occurred, the state of the building, the necessity of warning for the resident, and the contents based on the measurement results measured by the displacement measuring devices 1 at various places. In response, warning information indicating a warning is transmitted to the input / output device 2. In the input / output device 2, based on the received warning information, the display unit 26 and / or the audio output unit 28 outputs a warning to the resident. Various determinations based on the measurement result can be designed to be performed by each of the measuring instrument 102, the input / output device 2, and the information processing device 3, and in this case, the determination content is suitable for each device. It becomes contents. The processing of the information processing device 3 is executed based on the operation of an operator who operates the terminal device 4 as necessary. In each device such as the information processing device 3 and the terminal device 4 operated by the operator, the interlayer deformation angles of each door and each region are collected, the collapse status of the building is grasped, and the building, the region, etc. are grouped. By performing such processing, recovery support is supported.

<Characteristics of displacement measuring device>
Next, characteristics of the displacement measuring apparatus 1 used in the measurement system described in the present application will be described. FIG. 6 is an explanatory diagram illustrating an example of characteristics of the displacement measuring apparatus 1 described in the present application. FIG. 6A schematically shows the arrangement of the vertical rod 100 and the diagonal member 101 in the displacement measuring apparatus 1. In this schematic model, the floor height (the length of the vertical fence 100) is 2,762 mm, the height of the node between the middle portion of the vertical fence 100 and the upper end of the diagonal member 101 is 1,381 mm, the lower end of the vertical fence 100 and the diagonal When the separation distance from the lower end of the material 101 is set to 1,000 mm and the inclination angle of the oblique material with respect to the substantially vertical vertical shaft 100 is set to 36 °, the actual displacement corresponding to the expansion / contraction displacement of the oblique material 101 Table 1 shows the interlayer displacement and the interlayer deformation angle.

  The graph of FIG. 6B shows the correlation between the oblique member 101 with the expansion / contraction displacement on the horizontal axis and the interlayer displacement on the vertical axis. The solid line in this graph indicates the relationship between the actual expansion / contraction displacement and the interlayer displacement shown in Table 1, and the alternate long and short dash line indicates a linear function that linearly approximates the relationship between the expansion / contraction displacement and the interlayer displacement.

  FIG. 7 is an explanatory diagram showing another example of the characteristics of the displacement measuring apparatus 1 described in the present application. FIG. 7A schematically shows the arrangement of the vertical rod 100 and the diagonal member 101 in the displacement measuring apparatus 1. In this schematic model, the floor height (the length of the vertical fence 100) is 2,762 mm, the height of the node between the middle portion of the vertical fence 100 and the upper end of the diagonal member 101 is 1,381 mm, the lower end of the vertical fence 100 and the diagonal When the distance from the lower end of the material 101 is set to 500 mm, and the inclination angle of the oblique material with respect to the substantially vertical vertical shaft 100 is set to 20 °, the displacement of the oblique material 101 and the actual interlayer displacement corresponding to the elastic displacement The interlayer deformation angles are as shown in Table 2.

  The graph of FIG. 7B shows the correlation between the diagonal displacement of the diagonal member 101 on the horizontal axis and the interlayer displacement on the vertical axis. The solid line in this graph indicates the relationship between the actual expansion / contraction displacement and the interlayer displacement shown in Table 2, and the alternate long and short dash line indicates a linear function that linearly approximates the relationship between the expansion / contraction displacement and the interlayer displacement.

  FIG. 8 is an explanatory diagram illustrating an example of characteristics of a displacement measuring apparatus for comparison. As shown in FIG. 8A, the displacement measuring device includes an oblique member 70 that can be expanded and contracted in the axial direction between a lower-layer beam member 60 and an upper-layer beam member 60 (the upper end of the vertical shaft 100). Is arranged. In this schematic model, when the floor height is 2,762 mm, the separation distance between the lower end of the vertical rod 100 and the lower end of the diagonal member 101 is 500 mm, and the inclination angle of the diagonal member 70 with respect to the substantially vertical vertical rod 100 is set to 10 ° Table 3 shows the expansion / contraction displacement of the diagonal member 70 and the actual interlayer displacement and interlayer deformation angle corresponding to the expansion / contraction displacement.

  The graph of FIG. 8B shows the correlation between the expansion / contraction displacement of the diagonal member 70 on the horizontal axis and the interlayer displacement on the vertical axis. The solid line in this graph indicates the relationship between the actual expansion / contraction displacement and the interlayer displacement shown in Table 3, and the alternate long and short dash line indicates a linear function that linearly approximates the relationship between the expansion / contraction displacement and the interlayer displacement.

  In addition, when a horizontal force acts on a rectangular frame (column beam construction surface) surrounded by columns and beams, the frame is deformed into a parallelogram, and strictly speaking, a slight displacement occurs in the height direction. The amount of displacement is extremely small when viewed from the amount of deformation of the entire frame due to the earthquake (when the interlayer deformation angle is 1/15 (rad) in the schematic models of FIGS. 6 and 7, the change in height is about 6 mm). . Therefore, in order to simplify the data processing on the device side and realize displacement measurement within a practical error range, the values shown in the table and graph of the above three examples are the values even when the housing is deformed into a parallelogram. The dimension in the height direction is assumed to be constant and is calculated geometrically.

  Comparing the above three examples, as can be understood from FIGS. 6 to 8 and Tables 1 to 3, the displacement measurement for comparison in which the diagonal member 70 is arranged at an angle close to the vertical between the lower floor and the upper floor. In the apparatus, when the expansion / contraction displacement of the diagonal member increases, the difference between the curve indicating the actual interlayer displacement and the approximate line becomes remarkable, and the error increases. This error is due to the fact that the change in the height of the building is more easily reflected in the expansion and contraction displacement of the diagonal material while the angle of the diagonal material is closer to the vertical, while the change in the height is ignored. In addition, since the displacement measuring device for comparison differs in the direction and size in which the error occurs depending on the deformation direction (left and right) of the parallelogram, the inter-layer displacement must be measured after measuring the expansion and contraction displacement due to the earthquake and then reprocessing the data. There is also an inconvenience that it is not possible to accurately grasp.

  On the other hand, the displacement measuring device 1 described in the present application in which the diagonal member 101 is connected to the middle portion of the vertical rod 100 to increase the angle of the diagonal member 101 with respect to the vertical line has a linear relationship between the expansion and contraction displacement and the interlayer displacement. It is clear that the error is small even if the inter-layer displacement is obtained from the expansion / contraction displacement by linear approximation and linear expression. This effect is remarkable in a region where the expansion / contraction displacement is large, that is, a region where the interlayer deformation angle is large, particularly a region where the interlayer deformation angle is ± 1/30 (rad), and the interlayer deformation angle is ± 1/15 ( rad) also has a small error. The comparative displacement measuring apparatus shown in FIG. 8 and Table 3 has an interlayer deformation angle of ± 1/30 and ± 1/15 (rad) and an error of about 10% and 22%, whereas FIG. In the displacement measuring apparatus 1 described in the present application shown in FIG. 1, the error can be suppressed to 5% or less and 10% or less with an interlayer deformation angle of ± 1/30 and ± 1/15 (rad).

  In addition, ± 1/30 (rad) of the inter-layer deformation angle is the amount of deformation assumed to cause the brace to break at more than 50% in a general steel brace building in the building damage criteria classification criteria. is there. When this degree of deformation has occurred, there is a risk that the deformation may proceed due to further disturbances such as aftershocks, and it is desirable to take emergency measures. In addition, ± 1/15 (rad) of the interlaminar deformation angle, as described in the appendix of the performance evaluation business method pertaining to the certification of Article 1-3, Paragraph 1 of the Building Standards Law Enforcement Regulations, In the calculation, it is within the range where it can be evaluated that the structural strength is borne, and beyond this, even if the building has not actually collapsed, it is difficult to recover, and the building is collapsed in the structural calculation The amount of deformation that can also be determined.

  Therefore, as described as the processing outline of each device, when each device such as the input / output device 2 and the information processing device 3 determines that the interlayer displacement based on the measurement result exceeds a predetermined reference value, the warning output processing As a predetermined reference value, an interlayer displacement corresponding to an interlayer deformation angle ± 1/30 (rad) is set. Further, an interlayer displacement corresponding to an interlayer deformation angle ± 1/15 (rad) is set as a reference for even greater shaking. Since the interlayer deformation angle can be obtained using the interlayer displacement and the height between floors, an interlayer displacement corresponding to the reference interlayer deformation angle is set in advance for the floor where the displacement measuring device 1 is installed. It is possible to leave.

  As is clear from FIGS. 6 and 7 and Tables 1 and 2, the greater the angle between the vertical hook 100 and the diagonal member 101, the higher the linearity between the stretch displacement and the interlayer displacement. Accordingly, the angle of the diagonal member 101 with respect to the vertical gutter 100 is set to 10 ° or more, preferably 20 ° or more, and more preferably 36 ° or more, within the limits of the space where the displacement measuring device 1 is arranged in the building. desirable.

  The characteristics of the displacement measuring device 1 described in the present application described with reference to the above table and graph are based on the geometric principle, but the displacement measuring device 1 described in the present application is further used in an actual building installation, It has the following advantages. In other words, in an actual building, columns and beams are joined in a form close to a rigid node that maintains the joint angle between them, or struts between lower and upper floors, bearing walls, exterior materials, interior materials, etc. Since the rigidity is enhanced by the arrangement of the rectangular frame, the rectangular frame surrounded by the columns / beams is deformed in a more complicated curved shape than the parallelogram. Depending on the part, the displacement may exceed a slight displacement in the height direction due to the simple deformation of the parallelogram described above. Under such conditions, for example, when the displacement measuring device using only the diagonal material described in Patent Document 2 is installed close to the column, the displacement measuring device can perform complicated deformation of the construction surface due to the curvature of the column or beam. As a result, there is a possibility that an extra error is included in the interlayer displacement calculated from the measured value.

  Therefore, the displacement measuring device 1 described in the present application is a state in which a rectangular frame surrounded by columns and beams is not easily affected even when complicated curved deformation occurs, and the geometrical positional relationship between the constituent members is clearly maintained. The vertical rod 100 and the diagonal member 101 are combined so that the displacement can be measured by using a configuration in which all ends thereof are joined to the frame at pin nodes. According to this configuration, when a horizontal force is applied to the housing, the vertical rod 100 is tilted while maintaining linearity without being affected by the complicated curved deformation generated in the housing. By measuring the expansion / contraction displacement of the material 101, it is possible to accurately extract only the horizontal displacement of the housing. Further, by connecting the diagonal member 101 to the middle portion of the vertical rod 100, even if the installation width of the displacement measuring device (the interval width between the vertical rod and the lower end of the diagonal member) is small, the angle of the diagonal member with respect to the vertical line can be adjusted. It is possible to reduce the error when linearly approximating the expansion / contraction displacement to the interlayer displacement.

  The present invention is not limited to the embodiments described above, and can be implemented in various other forms. For this reason, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The scope of the present invention is shown by the scope of claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

  Hereinafter, some of various forms of the present invention that are innumerable will be described.

  FIG. 9 is a schematic diagram showing an example of the displacement measuring apparatus 1 used in the measuring system described in the present application. Fig.9 (a) is a front view, FIG.9 (b) is a top view in CD cross section, FIG.9 (c) is a right view. Note that the measuring instrument 102 is omitted. The displacement measuring apparatus 1 illustrated in FIG. 9 is a partial modification of the displacement measuring apparatus 1 illustrated in FIG. 2, and the joining form of the diagonal member 101 to the vertical rod 100 and the beam member 60 on the lower floor is different. Yes.

  The displacement measuring apparatus 1 illustrated in FIG. 9 is attached to the side part of the middle part of the vertical hook 100 so that two flat plate-like attachment plates 100e protrude sideways with their surfaces parallel to each other. ing. On the other hand, a slit is formed at the upper end of the diagonal member 101 so as to open at the end of the diagonal member and extend in the axial direction. A flat joining plate 101e is inserted into the slit and welded. The joining plate 101e has two attachment plates 100e attached to the side portions of the vertical rod 100 in a posture in which the weak axis direction (plate thickness direction) is orthogonal to the column beam construction surface (the paper surface of FIG. 9A). Between them and bolts and nuts are attached together.

  Further, two flat plate mounting plates 60b are mounted on the lower floor beam member 60 so as to protrude upward with their surfaces parallel to each other. Then, similarly to the upper end described above, a slit is formed at the lower end of the diagonal member 101 so as to open at the end of the material and extend in the axial direction. A flat plate-like joining plate 101f is inserted into the slit and welded. . The joining plate 101f is positioned between the two attachment plates 60b attached to the beam member 60 in a posture in which the weak axis direction (plate thickness direction) is orthogonal to the column beam construction surface (the paper surface of FIG. 9A). They are sandwiched and bolted together with them.

  With such a joining form, the diagonal member 101 is joined to the vertical fence 100 and the beam member 60 on the lower floor via the pin nodes.

  FIG. 10 is a schematic diagram illustrating an example of the displacement measuring apparatus 1 used in the measurement system described in the present application. Fig.10 (a) is a front view, FIG.10 (b) is a top view in EF cross section, FIG.10 (c) is a right view. Note that the measuring instrument 102 is omitted. The displacement measuring device 1 illustrated in FIG. 10 is a partial modification of the displacement measuring device 1 illustrated in FIG. 9, and the shape of the vertical rod 100 and the joining form of the diagonal member 101 to the vertical rod 100 are different. .

  In the displacement measuring apparatus 1 illustrated in FIG. 10, an H-section steel having a small cross-sectional dimension is used for the vertical rod 100. The H-shaped steel is divided at the intermediate portion, and the divided H-shaped steels are connected in the axial direction through two connecting plates 100f attached so as to sandwich the respective webs from both sides. ing. Further, the upper and lower ends of the vertical hook 100 are connected so that the connecting plate 60c attached to the beam member 60 and the web of the vertical hook 100 are sandwiched by the connecting plates 100g from both front and back sides so as to be flush with the web. Has been.

  On the other hand, similarly to the embodiment illustrated in FIG. 9, a slit is formed at the upper end of the diagonal member 101 so as to open at the end of the material and extend in the axial direction. A flat joining plate 101e is inserted into the slit and welded. Has been. The joining plate 101e has two mounting plates 100f disposed in the middle portion of the vertical rod 100 in a posture in which the weak axis direction (plate thickness direction) is orthogonal to the column beam construction surface (the paper surface of FIG. 10A). Between them and bolts and nuts are attached together. The joining form of the lower end of the diagonal member 101 and the beam member 60 on the lower floor is the same as the form illustrated in FIG.

  Even in such a joining form, the diagonal member 101 is joined to the vertical fence 100 and the beam member 60 on the lower floor via the pin nodes.

  FIG. 11 is a schematic diagram illustrating an example of the displacement measuring apparatus 1 used in the measurement system described in the present application. Fig.11 (a) is a front view, FIG.11 (b) is a top view in GH cross section, and FIG.11 (c) is a right view. The displacement measuring device 1 illustrated in FIG. 11 is a partial modification of the displacement measuring device 1 illustrated in FIG. 10, and the configuration of the diagonal material 101 is different. In the displacement measuring apparatus 1 illustrated in FIG. 11, square steel pipes are used for the outer cylinder member 101a and the inner cylinder member 101b constituting the diagonal material. The joining form between the upper end of the diagonal member 101 and the vertical rod 100 and the joining form between the lower end of the oblique member 101 and the beam member 60 are the same as those of the displacement measuring apparatus 1 illustrated in FIG. Even in such a joining form, the diagonal member 101 is joined to the vertical fence 100 and the beam member 60 on the lower floor via the pin nodes.

As described above, the joining form of the vertical rod 100, the diagonal member 101, and the beam member 60 can be implemented by appropriately selecting various joining forms that can be structurally regarded as pin nodes. Also, various materials can be used for the vertical rod 100 and the diagonal member 101. For example, a round steel pipe or a grooved steel with a lip can be used for the vertical rod 100 in addition to the above-described form. is there. Further, the vertical gutter 100 may use a pillar or the like in which the upper and lower ends are joined to the beam material in a joining form that can be regarded as a pin node among the pillar materials constituting the building frame. .

  Further, the diagonal member 101 may be configured to connect the intermediate portion of the vertical fence 100 and the beam material 60 on the upper floor instead of connecting the intermediate portion of the vertical fence 100 and the beam material 60 on the lower floor.

  Furthermore, the measuring instrument 102 can be developed in various forms such as being enclosed inside the diagonal material 101 instead of being attached outside the diagonal material 101.

DESCRIPTION OF SYMBOLS 1 Displacement measuring device 10 Measuring part 100 Vertical hook 101 Diagonal material 102 Measuring instrument 1020 Holder 1021 Measuring element 1022 Measuring piece 11 Calculation part 12 Connection part 13 Communication part 2 Input / output device 26 Display part (image output part)
28 Voice output unit 3 Information processing device 4 Terminal device 60 Beam material NW network

Claims (8)

A downspout attached between the lower and upper floors of the building,
A diagonal member attached obliquely between the middle part of the vertical fence and the lower floor or the upper floor, and stretchable in the longitudinal direction,
A measuring instrument for measuring the displacement of the diagonal member,
The upper and lower ends of the vertical fence are joined by a joining form that can be regarded as a pin node with respect to the horizontal member constituting the lower and upper floors,
The upper and lower ends of the diagonal member are joined to the longitudinal member and the horizontal member constituting the lower-layer or upper-layer case by a joining form that can be regarded as a pin node. The measurement system according to claim 1,
The measuring system , wherein the diagonal member is attached obliquely at an angle of 10 ° or more with respect to the vertical shaft . The measurement system according to claim 1 or 2 ,
Based on a linear approximation of the expansion and contraction displacement and the interlayer displacement between the lower floor and the upper floor, the interlayer displacement derived from the expansion and displacement measured by the measuring instrument is based on a threshold regarding damage to the building. A measurement system comprising: output means for outputting an output relating to damage to the building when a set reference value is exceeded . The measurement system according to claim 3 ,
The reference value by which the output means outputs the damage on the building is set based on a value corresponding to an interlayer deformation angle with a derived interlayer displacement of ± 1/30 (rad) or more. Measuring system. The measurement system according to claim 3 or 4 , wherein
Further comprising a front Symbol instruments that can communicate an output device,
The output device includes the output unit. The measurement system according to claim 5,
A measurement system further comprising an information processing device capable of communicating with the plurality of output devices. It can be used for the measurement system according to any one of claims 1 to 6,
A displacement measuring apparatus comprising the downboard, the diagonal member, and the measuring instrument. A downpipe that can be installed between the lower and upper floors of the building,
An oblique member that can be attached obliquely between the middle part of the vertical fence and the lower floor or the upper floor, and can be expanded and contracted in the longitudinal direction,
A measuring instrument for measuring the displacement of the diagonal member,
The upper and lower ends of the vertical fence are joined by a joining form that can be regarded as a pin node with respect to the horizontal member constituting the lower floor and the upper floor frame,
The upper and lower ends of the diagonal member are joined to the longitudinal member and the horizontal member constituting the lower-layer or upper-layer housing in a joint form that can be regarded as a pin node.

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