JP2019128216A - Method for measuring deformation amount of architectural structure - Google Patents

Abstract

To reduce the cost and man-hour of a method for measuring a deformation amount of an architectural structure.SOLUTION: Positional sensors 11 are supported on mullion 6 of a curtain wall 1. On the basis of information acquired by the positional sensors 11 through radio communication, two-dimensional coordinate values indicating positions of the positional sensors 11 are calculated and displacement of the two-dimensional coordinate values from reference values is determined, so as to determine a deformation amount of the mullion 6.SELECTED DRAWING: Figure 1

Description

  The present invention measures deformations of vertical members, horizontal members, and panels of a building structure, for example, in a wind pressure test or an interlayer displacement test of a rectangular frame-shaped building structure such as a curtain wall or an opening device. The present invention relates to a method for measuring the amount of deformation of a building structure.

  When building a steel frame structure, after assembling the steel frame (frame), a plurality of curtain walls constituting the outer wall are attached to the outside of the steel frame. Such a curtain wall needs to be subjected to various performance tests such as a wind pressure test and an inter-layer displacement test according to the shape of the building, installation conditions, design conditions, and the like before installation on the site. In the wind pressure test and the inter-layer displacement test, external force is applied to the curtain wall, and the direction of the curtain wall and the amount of deformation of the panel are measured. For example, a contact displacement meter described in Japanese Patent Application Laid-Open No. 2004-233194 can be used as a sensor for measuring the orientation of the curtain wall, the texture, and the amount of deformation of the panel.

  FIG. 3 and FIG. 4 show a conventional example of a method of measuring the amount of deformation of the curtain 6 of the curtain wall 1 by the contact displacement gauges 2a and 2b in the performance test. A support housing 3 for supporting the contact displacement meters 2a and 2b is provided to face the curtain wall 1 supported by a virtual housing (not shown) of the test apparatus. By bringing the tips of the probes 5a and 5b of the contact-type displacement gauges 2a and 2b supported on the support frame 4 of the support housing 3 into contact with the side surface of the curtain 6 of the curtain wall 1, The displacement in the inward direction (left and right direction in FIGS. 4A and 4C) and in the out-of-plane direction (left and right direction in FIG. 4B, and up and down direction in FIG. 4C) can be measured. That is, the main body portion 7a is supported by the support frame 4 via the auxiliary arm 8 extending in the out-of-plane direction so that the axial direction of the probe 5a coincides with the in-plane direction. The tip of the probe 5a to which the elasticity of the direction is applied is brought into contact with one side surface in the in-plane direction of the stand 6. On the other hand, the tip portion of the probe 5b which supports the main body 7b with respect to the support frame 4 so that the axial direction of the probe 5b coincides with the out-of-plane direction of the contact displacement meter 2b. Is brought into contact with one side surface of the facing 6 in the out-of-plane direction. In the performance test, an external force is applied to the curtain wall 1 by applying a wind pressure generated from a blower to the curtain wall 1 or displacing a virtual case supporting the curtain wall 1. When the lateral wall 6 of the curtain wall 1 is deformed by this external force, the probes 5a and 5b of the contact displacement meters 2a and 2b are displaced in the respective axial directions. By recording the displacement amounts of the respective probes 5a and 5b by the data logger, it is possible to measure the deformation amounts in the in-plane direction and the out-of-plane direction of the curtain 6 of the curtain wall 1.

Unexamined-Japanese-Patent No. 2004-233194

  The method of measuring the amount of deformation of the curtain wall as described above has room for improvement in terms of cost and man-hour reduction. That is, in the conventional method shown in FIGS. 3 and 4, the expensive contact displacement gauges 2a and 2b are displaced in the in-plane direction of the curtain wall 1 at each measurement position P (see FIG. 4A). Two are required, one that measures the displacement and one that measures the displacement in the out-of-plane direction. The number of contact-type displacement meters 2a and 2b in the entire apparatus depends on the size of the curtain wall 1 that is a test body and the test conditions, but about 200 at the maximum may be required.

  The contact displacement meters 2a and 2b need to be attached to the supporting housing 3 installed so as to face the curtain wall 1 with high accuracy. That is, the axial position (the amount of protrusion of the probes 5a, 5b from the body portions 7a, 7b) of the probes 5a, 5b with respect to the body portions 7a, 7b is properly regulated, and the central axes of the probes 5a, 5b stand upright. It is necessary to attach the contact type displacement gauges 2a and 2b to the support housing 3 in a state in which the tips of the probes 5a and 5b are in contact with the side surfaces of the crosspiece 6 so as to be perpendicular to the side surfaces. In short, the operation of attaching the contact displacement gauges 2a, 2b to the supporting housing 3 requires skill, is complicated, and requires a lot of man-hours. The preparation for testing the curtain wall 1 including the installation operation of the support housing 3 and the installation operation of the contact displacement meters 2a and 2b takes much time and labor.

  SUMMARY OF THE INVENTION In view of the above-described circumstances, the present invention realizes a method of measuring the amount of deformation of a building structure that can reduce cost and man-hours and reduce variations due to the degree of skill of the installation worker. The purpose is.

  The building structure which is the object of the method for measuring the deformation amount of the building structure of the present invention is attached to the vertical member arranged in the vertical direction, the horizontal member arranged in the horizontal direction, and the vertical member and the horizontal member. And a panel. That is, the method for measuring the amount of deformation of a building structure according to the present invention can be applied to, for example, a curtain wall or an opening device such as a sash or a door.

  In the method for measuring a deformation amount of a building structure according to the present invention, a position sensor is supported by at least one member among the vertical member, the horizontal member, and the panel, and the position sensor is based on information acquired by wireless communication. Then, a two-dimensional coordinate value representing the position of the position sensor is calculated, and a deviation (displacement amount) from the reference value of the two-dimensional coordinate value is obtained, whereby a deformation amount (elastic deformation amount) of the member supporting the position sensor. And residual deformation etc.).

  The position sensor is preferably a GPS sensor.

  According to the method for measuring a deformation amount of a building structure according to the present invention, it is possible to reduce costs and man-hours, and to reduce variations due to the skill level of an installation worker.

FIG. 1 is a schematic perspective view showing a measurement mode using a position sensor in a curtain wall deformation measuring method according to an example of an embodiment of the present invention. FIG. 2 (A) is a schematic front view showing a measurement position with respect to a curtain wall deformation measuring method according to an example of an embodiment of the present invention, and FIG. 2 (B) shows a mounting manner of the position sensor. FIG. 2C is a view corresponding to the aa cross section of FIG. 2A, and FIG. 2C is a view corresponding to the bb cross section of FIG. . FIG. 3 is a schematic perspective view showing a measurement mode by a contact type displacement gauge in the conventional method of measuring the deformation amount of a curtain wall. FIG. 4A is a schematic front view showing a measurement position with respect to a conventional method for measuring a deformation amount of a curtain wall, and FIG. 4B shows a measurement mode using a contact displacement meter. FIG. 4C is a diagram corresponding to the dd cross section of FIG. 4A, showing a measurement mode using a contact displacement meter.

  1 and 2 show an example of an embodiment of the present invention. The curtain wall 1 which is the object of the method for measuring the amount of deformation of a building structure according to the present invention, including the present example, is a vertical member arranged in the vertical direction, and a plurality of vertical walls 6 and adjacent left and right walls. A plurality of invisible 9s, which are horizontal members respectively disposed between the verticals 6, and a panel 10 attached to an opening surrounded by the verticals 6 and 9 Equipped with

  Next, a method for measuring the amount of deformation of the curtain wall for measuring the amount of deformation of the curtain wall 1 during performance tests such as a wind pressure test and an interlayer displacement test will be described. The performance test is performed in a state where a plurality of vertical positions of the vertical wall 6 of the curtain wall 1 are supported and fixed to a virtual casing (not shown) of the test apparatus via a bracket.

  The feature of this example is a GPS (Global Positioning System) sensor that outputs its own position information as a two-dimensional coordinate value (latitude and longitude in this example) based on a radio signal from a satellite. It is used to measure the deformation of at least one member of the vertical wall 6, the blank 9 and the panel 10 of the curtain wall 1. 1 and 2 show a structure for measuring the deformation of the square 6 by the position sensor 11.

  In this example, a power cable to the position sensor 11 and a two-dimensional coordinate value output from the position sensor 11 can be obtained in real time by a computer using a signal cable such as a USB cable connected to the position sensor 11. It has become.

  However, the method of supplying power to the position sensor 11 and the method of obtaining two-dimensional coordinate values output by the position sensor 11 are not particularly limited. For example, power is supplied to the position sensor 11 by a battery built in the sensor holder, or two-dimensional coordinate values output during the test by the position sensor 11 are recorded in a memory built in the sensor holder, It can also be read from memory.

  In this example, the two-dimensional coordinate value is calculated based on the radio signal from the satellite by the arithmetic unit in the position sensor 11 and transmitted from the position sensor 11 to the computer, but is received by the position sensor 11. The information of the radio signal from the satellite can be transmitted to the computer as it is, and the two-dimensional coordinate value of the position sensor 11 can be calculated by the computer.

  In this example, one side (indoor side in a state attached to a building) with respect to the out-of-plane direction (left-right direction in FIG. 2B, up-down direction in FIG. 2C) of the stand 6 constituting the curtain wall 1 The position sensor 11 is attached to a plurality of measurement positions P (three positions in the illustrated example) determined according to the test conditions by using a magnet or an adhesive tape. , Attached one by one. In addition, the position sensor 11 is not limited to the one side surface in the out-of-plane direction of the vertical 6, but the other side surface in the out-of-plane direction of the vertical 6 (the side surface on the outdoor side when attached to the building) It can also be attached to the side surface in the in-plane direction (the left and right direction in FIG. 2 (A) and FIG. 2 (C)).

  In order to measure the deformation amount of the curtain wall 1 during the performance test, first, before carrying out the test, the two-dimensional coordinate values (reference values) of the respective position sensors 11 in a state where no external force is applied are obtained. Keep it.

  Next, an external force according to the test conditions is applied to the curtain wall 1. That is, when the wind pressure test is performed, the wind pressure generated from the blower is applied to the curtain wall 1, and when the interlayer displacement test is performed, the virtual housing supporting the curtain wall 1 is moved in the out-of-plane direction or in-plane direction. Displace.

  In this example, based on the two-dimensional coordinate value of the position sensor 11 acquired during the test, the computer program converts it to a deviation (displacement amount) from the reference value of the position sensor 11. Specifically, based on the two-dimensional coordinate value of the position sensor 11 acquired during the test, the computer calculates the displacement amount in the in-plane direction from the reference position of the position sensor 11 and the displacement amount in the out-of-plane direction. calculate. Thereby, the deformation of the vertical 6 of the curtain wall 1 can be measured.

  According to the curtain wall deformation measuring method of this example as described above, it is possible to reduce costs and man-hours, and to reduce variations due to the skill level of the installation worker.

  That is, in this example, a GPS sensor that is less expensive than the contact displacement meters 2a and 2b used in the conventional method shown in FIGS. 3 and 4 is used as the position sensor 11. Further, both of the displacement amount in the in-plane direction and the displacement amount in the out-of-plane direction can be obtained by one position sensor 11. Accordingly, since only one position sensor 11 is required for each measurement position, the number of position sensors 11 in the entire apparatus is the same as that of the contact type displacement gauges 2a and 2b used in the conventional method shown in FIGS. The number can be reduced to less than half (about half). For these reasons, the cost can be reduced.

  In this example, based on the information acquired by the position sensor 11 through wireless communication, a two-dimensional coordinate value representing the position of the position sensor 11 is calculated, and by obtaining a deviation from the reference value of the two-dimensional coordinate value, The displacement amount of the vertical 6 in the in-plane direction and the out-of-plane direction is obtained. Furthermore, in the present embodiment, the position sensor 11 is supported by being attached to one side surface of the cross plate 6 in the out-of-plane direction. Therefore, according to this example, the position sensor 11 can be easily attached without requiring skill, and the contact displacement meters 2a and 2b are supported as in the conventional method shown in FIGS. There is no need to install a supporting housing 3 for this purpose. For these reasons, it is possible to reduce the number of steps and to reduce variations due to the degree of skill of the installation worker.

  As described above, in this example, unlike the conventional method, the supporting housing 3 is not installed at a position facing the curtain wall 1. For this reason, the curtain wall 1 can be easily observed from a close distance during a test such as a wind pressure test and an interlayer displacement test or immediately after the test. In addition, while the position sensor 11 is attached to the curtain wall 1, another performance test such as an airtight test for confirming the airtightness of the curtain wall 1 or a watertight test for confirming the watertightness may be performed. it can.

  In this example, the case where the position sensor 11 is attached to the vertical wall 6 of the curtain wall 1 and the deformation amount of the vertical wall 6 is measured has been described. However, in the curtain wall deformation amount measuring method of the present invention, the vertical wall 6 is In addition to or instead of the square 6, it is also possible to measure the amount of deformation of the blind 9 or the panel 10.

  Moreover, the measuring method of the building structure of this invention can target not only the curtain wall 1 of this example but various rectangular frame-like building structures, such as opening part apparatuses, such as a sash and a door. Specifically, for example, when the target is a sliding window, it is preferable to attach the position sensor 11 to the summon bowl.

  In this example, the case of measuring the amount of deformation of the curtain wall 1 in the wind pressure test and the interlayer displacement test has been described, but according to the method of measuring the amount of deformation of the building structure of the present invention, The amount of deformation of the building structure can be measured. Specifically, for example, by attaching the position sensor 11 to the curtain wall 1 supported by the steel frame (housing) of the building, it is possible to measure the amount of deformation of the curtain wall 1 at the actual construction site.

  Further, when a GPS sensor is used as the position sensor 11 and the radio wave intensity of a radio signal from a satellite is not sufficient, such as indoors, the method for measuring a deformation amount of a building structure according to the present invention is performed. Can be equipped with a relay device. That is, an antenna installed outdoors can receive a radio signal from a satellite, and an amplified radio signal can be re-radiated from a radiator installed indoors and connected to the antenna by a signal cable.

  When a GPS sensor is used as the position sensor 11 as in the present example, the computer may be provided with noise removal means for removing an error superimposed on the output signal of the position sensor 11. Specifically, one GPS sensor is installed at an immobile position not displaced even in performance tests such as wind pressure test and interlayer displacement test, and a computer based on the output signal of the GPS sensor installed at this immobile position. Thus, the error superimposed on the output signal of the position sensor 11 supported on the curtain wall 1 can be removed.

  In this example, a GPS sensor that outputs a two-dimensional coordinate value representing its own position based on a radio signal from a satellite is used as the position sensor 11. However, in the present invention, other sensors can also be used. . Specifically, for example, a transmitter is installed at a fixed position not displaced even in performance tests such as wind pressure test and interlayer displacement test, and a reference signal transmitted by radio from this transmitter is supported on the curtain wall The two-dimensional coordinate value representing the position of the position sensor can be calculated by the position sensor or the computer based on the three-point positioning method. In this case, for communication between the transmitter and the position sensor, for example, a wireless communication means such as Bluetooth (registered trademark) or Wi-Fi can be used.

Reference Signs List 1 curtain wall 2a, 2b contact displacement meter 3 support housing 4 support frame 5a, 5b probe 6 side 7a, 7b main body 8 auxiliary arm 9 blind 10 panel 11 position sensor

Claims (2)

A method of measuring the amount of deformation of an architectural structure, comprising: vertical members arranged in the vertical direction, horizontal members arranged in the horizontal direction, and panels attached to the vertical members and the horizontal members,
A position sensor is supported by at least one member of the vertical member, the horizontal member, and the panel, and the two-dimensional coordinate value representing the position of the position sensor based on the information acquired by the position sensor by wireless communication Calculating the amount of deformation of the member supporting the position sensor by calculating the deviation from the reference value of the two-dimensional coordinate value;
How to measure the amount of deformation of a building structure.   The method according to claim 1, wherein the position sensor is a GPS sensor.

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