Interlayer deformation measurement device

Abstract

To provide an interlayer deformation measurement device which can easily confirm an interlayer deformation without using a large device.SOLUTION: An interlayer deformation measurement device 10 has a displacement sensor 12 for measuring an amount of floating of a load receiving fastener part 110 at the time of an earthquake provided on right and left sides in a width direction a rocking-type curtain wall 106 rotatably attached in a framework plane of a building 100 in the direction of the inside of the plane.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an interlayer deformation measuring device. [Background technology]

[0002] Conventionally, displacement measuring devices for measuring the displacement of buildings have been proposed.

[0003] The following Patent Document 1 discloses a displacement measuring device that includes a vertical rod attached between the lower and upper floors of a building, a long diagonal member that is attached diagonally between the vertical rod and the lower floor and is extendable in the longitudinal direction, and a measuring instrument that measures the expansion and contraction displacement of the diagonal member. In this displacement measuring device, the upper and lower ends of the vertical rod that spans the upper and lower floors of the building are connected to the framework of the lower and upper floors with pin joints, and the deformation of the diagonal member is measured with the measuring instrument to determine inter-story deformation and inter-story deformation angle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-159601 A Summary of the Invention [Problem to be solved by the invention]

[0005] The displacement measuring device described in Patent Document 1 requires a large device to be installed across the lower and upper floors of a building to measure the displacement of the diagonal members. In addition, in order to accurately measure inter-story deformation, the upper and lower ends of the vertical rods need to be joined to the framework of the lower and upper floors so that they form pin contacts, which makes the configuration of the displacement measuring device complicated.

[0006] In consideration of the above, an object of the present invention is to provide an interlayer deformation measuring device that can easily check interlayer deformation without using a large-scale device. [Means for solving the problem]

[0007] The interlayer deformation measuring device described in the first embodiment is equipped with a measuring member that measures the amount of lift during an earthquake of load-receiving parts provided on the left and right sides of the width direction of a locking-type curtain wall that is rotatably attached in the in-plane direction within the building's structural surface, or the amount of vertical movement during an earthquake of parts that penetrate the anti-sway parts provided on the left and right sides of the width direction of the curtain wall.

[0008] According to the interstory deformation measuring device of the first aspect, a rocking-type curtain wall attached to the inside of the plane of the building's frame rotates in the in-plane direction in response to deformation of the frame during an earthquake. In other words, the curtain wall rotates around one of the load receivers on the left or right as a fulcrum, causing the other load receiver to rise. The amount of rise of the load receivers is measured with a measuring device, and the amount of rise is divided by the distance between the load receivers to calculate the rotation angle of the curtain wall. In the case of a sway restraint, the member protruding from the curtain wall and penetrating the sway restraint moves up and down due to the rotation of the curtain wall. The amount of up and down movement of the member penetrating the sway restraint is measured with a measuring member, and the amount of up and down movement is divided by the distance between the members penetrating the sway restraint, allowing the rotation angle of the curtain wall to be calculated. The rotation angle of this curtain wall can be considered to be the same as the inter-story deformation angle calculated from the inter-story deformation and floor height of the building. Therefore, compared to measuring inter-story deformation using a large displacement meter equivalent to the height of a building floor, it is possible to easily check inter-story deformation without using a large device.

[0009] The interlayer deformation measuring device according to a second aspect is the interlayer deformation measuring device according to the first aspect, wherein the measuring member is a displacement sensor that detects the amount of lift or the amount of up-down movement per unit time.

[0010] According to the interstory deformation measuring device of the second aspect, the amount of uplift or the amount of vertical movement per unit time during an earthquake is detected and sent to a calculation unit, thereby making it possible to derive a time history waveform of the interstory deformation of a building.

[0011] The interlayer deformation measuring device described in the third aspect is the interlayer deformation measuring device described in the first aspect, and is a mechanical scale in which the measuring member stops at a position where it is pushed up by the load-receiving portion or at a position where it is pushed down by a member that penetrates the anti-vibration portion.

[0012] According to the inter-story deformation measuring device described in the third aspect, in a case where it is not necessary to derive the time history waveform of the inter-story deformation of a building and it is sufficient to record the maximum value of the inter-story deformation of a building during an earthquake, the cost of installing the device can be reduced. Effect of the Invention

[0013] According to the interlayer deformation measuring device of the present disclosure, it is possible to easily check interlayer deformation without using a large-scale device. [Brief description of the drawings]

[0014] [Figure 1] 1 is an elevation view showing an example of a building to which the interlayer deformation measuring device of the first embodiment is applied. [Diagram 2] 1 is a diagram showing the behavior of a curtain wall during an earthquake in a building to which the interstory deformation measuring device of the first embodiment is applied. FIG. [Diagram 3] FIG. 2 is an enlarged configuration diagram showing the interlayer deformation measuring device of the first embodiment. [Figure 4] 5(A) to 5(D) are diagrams showing a process of deriving a time history waveform of inter-story deformation of a building in the inter-story deformation measuring device of the first embodiment. [Diagram 5] FIG. 6 is an enlarged configuration diagram showing an interlayer deformation measuring device according to a second embodiment. [Figure 6] FIG. 11 is an enlarged configuration diagram showing an interlayer deformation measuring device according to a third embodiment. [Figure 7] FIG. 13 is an enlarged configuration diagram showing an interlayer deformation measuring device according to a fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings, in which elements that are less relevant to the present invention are omitted.

[0016] [First embodiment] The interlayer deformation measuring device of the first embodiment will be described with reference to Figs. 1 to 4. Fig. 1 shows an example of a building 100 to which the interlayer deformation measuring device of the first embodiment is applied. Fig. 2 shows an example of the behavior of a curtain wall 106 (described later) of the building 100 during an earthquake. Fig. 3 shows the interlayer deformation measuring device 10 of the first embodiment. Note that Figs. 1 and 2 omit the illustration of the interlayer deformation measuring device 10 to make the configuration easier to understand.

[0017] (Building composition) 1 and 2 show a portion of multiple floors of a building 100. As shown in Fig. 1, the building 100 includes a plurality of columns 102, beams 104 suspended between adjacent columns 102, and a plurality of curtain walls 106 (two in this embodiment) arranged between the adjacent columns 102.

[0018] A lower portion 106A of one curtain wall 106 is attached to the lower beam 104 using two load-receiving fastener portions 110. An upper portion 106B of the one curtain wall 106 is attached to the upper beam 104 using two anti-sway fastener portions 112. As an example, the curtain wall 106 is attached across two stories of the building 100.

[0019] The curtain wall 106 is a wall that separates the interior and exterior spaces like a curtain without bearing the load of the building 100. The curtain wall 106 has sufficient strength against external forces such as earthquakes and typhoons, and furthermore, even if a displacement difference occurs between the upper and lower floors of the building 100, the curtain wall 106 follows without falling off or being damaged due to the load-receiving fastener parts 110 and the sway-stop fastener parts 112. In the first embodiment, the curtain wall 106 is a locking-type curtain wall that is attached to the frame surface of the building 100 by the load-receiving fastener parts 110 and the sway-stop fastener parts 112 so as to be rotatable in the in-plane direction. Here, the locking type refers to a method in which the curtain wall 106 follows inter-story displacement by rotating (rocking) in the in-plane direction.

[0020] The two load-receiving fastener portions 110 are provided at an interval on the left and right sides in the width direction of the lower portion 106A of the curtain wall 106. The load-receiving fastener portion 110 is an example of a load-receiving portion. The load-receiving fastener portion 110 is a mounting fitting that bears the weight (vertical force) and horizontal load (out-of-plane force, in-plane force) of the curtain wall 106. As shown in Fig. 3, the load-receiving fastener portion 110 includes a base pin 120 attached to the beam 104 and a load-receiving angle 122 attached to the curtain wall 106 (see Figs. 1 and 2).

[0021] 3, the base pin 120 includes a base 120A fixed to the upper part of the beam 104 by a fixture (not shown), and a pin 120B extending upward from the base 120A. The base pin 120 bears the horizontal reaction force of the curtain wall 106.

[0022] The load-receiving angle 122 bears the vertical force due to the weight of the curtain wall 106. The load-receiving angle 122 is an L-shaped member and includes a vertical plate portion 122A and a horizontal plate portion 122B bent horizontally from the lower end of the vertical plate portion 122A. The vertical plate portion 122A is fixed to the side surface of the curtain wall 106 by a mounting fixture (not shown). A hole portion 124 is formed in the horizontal plate portion 122B, and the inner diameter of the hole portion 124 is larger than the outer diameter of the pin 120B. The hole portion 124 is a loose hole and can absorb the horizontal construction error with the base pin 120. The pin 120B is capable of moving in the axial direction relative to the hole portion 124 while being inserted through the hole portion 124. Although not shown, a plurality of connecting plates having a through portion through which the pin 120B passes may be interposed between the horizontal plate portion 122B and the base 120A.

[0023] As shown in Fig. 1, under normal conditions (when no earthquake is occurring), the base 120A and the horizontal plate portion 122B of the load-receiving angle 122 are in surface contact. As shown in Fig. 2, during an earthquake, the curtain wall 106 rotates (for example, in the direction of arrow R) with the load-receiving angle 122 of one of the left and right load-receiving fastener portions 110 as a fulcrum, and the load-receiving angle 122 of the other left and right load-receiving fastener portion 110 is lifted up.

[0024] 1 and 2, the two anti-sway fastener parts 112 are provided at a distance from each other on the left and right sides in the width direction of the upper beam 104. The anti-sway fastener part 112 is a mounting metal fitting that bears the horizontal load of the curtain wall 106. The anti-sway fastener part 112 includes a mounting angle 130 attached to the beam 104 and an anchor bolt 132 partially embedded in the curtain wall 106.

[0025] The mounting angle 130 is an L-shaped member, and includes a horizontal plate portion 130A and a vertical plate portion 130B bent vertically from one end of the horizontal plate portion 130A. The horizontal plate portion 130A is fixed to the lower portion of the beam 104 by a fixture (not shown). A long hole 136 is formed in the vertical plate portion 130B, and the long hole 136 is arranged so that the longitudinal direction of the long hole 136 is vertical when the curtain wall 106 is in a normal state (a state in which no earthquake has occurred) (see FIG. 1). The inner diameter of the long hole 136 in the short side direction is larger than the outer diameter of the shaft portion of the anchor bolt 132. When the shaft portion of the anchor bolt 132 is inserted into the long hole 136, the anchor bolt 132 is relatively movable in the long direction of the long hole 136. A nut 134 is fastened to the head of the anchor bolt 132, and the outer diameter of the nut 134 is larger than the inner diameter of the long hole 136 in the short side direction. The nut 134 prevents the anchor bolt 132 from slipping out of the long hole 136 .

[0026] Although not shown, a sliding material having a through hole formed therein through which the shaft of the anchor bolt 132 passes may be interposed between the vertical plate portion 130B and the curtain wall 106. Furthermore, although not shown, a sliding material having a through hole formed therein through which the shaft of the anchor bolt 132 passes or a plate that prevents interference between the nut 134 and the long hole 136 may be interposed between the vertical plate portion 130B and the nut 134.

[0027] As shown in FIG. 2, during an earthquake, the curtain wall 106 rotates (see the direction of arrow R in FIG. 2), and the anchor bolts 132 fixed to the curtain wall 106 move relatively within the long holes 136 of the mounting angles 130.

[0028] (Overall configuration of interlayer deformation measuring device) Next, the interlayer deformation measuring device 10 of the first embodiment will be described.

[0029] As shown in Fig. 3, the interlayer deformation measuring device 10 is equipped with a displacement sensor 12 that measures the amount of lift of the load-receiving angle 122 constituting the load-receiving fastener part 110 during an earthquake. The displacement sensor 12 is an example of a measuring member. The displacement sensor 12 is provided on each of the load-receiving fastener parts 110 arranged on the left and right in the width direction of the lower part 106A of the curtain wall 106. The two displacement sensors 12 have the same configuration.

[0030] The two displacement sensors 12 are each electrically connected to the user terminal 30. In the first embodiment, the two displacement sensors 12 are electrically connected to the user terminal 30 by wires, but may be configured to transmit data to the user terminal 30 by wireless communication.

[0031] Although not shown in the figures, as an example, a displacement sensor 12 is provided on each of the load-receiving fastener portions 110 arranged on the left and right sides in the width direction of the lower portion 106A of the multiple curtain walls 106. Each displacement sensor 12 is electrically connected to the user terminal 30 by wire, or transmits data to the user terminal 30 by wireless communication.

[0032] (Displacement Sensor) The displacement sensor 12 comprises a mounting portion 14 attached to a beam 104, a sensor body 16 supported on the upper portion of the mounting portion 14, and a contact 18 extending downward from the sensor body 16 and movable in the vertical direction.

[0033] The mounting part 14 includes a base 14A attached to the upper part of the beam 104, and an arm 14B extending upward from the base 14A. The base 14A is fixed to the upper part of the beam 104 by a mounting fixture (not shown). The arm 14B is L-shaped and is bent horizontally from the upper end of a rod extending upward from the base 14A. The horizontally bent portion at the upper end of the arm 14B is shaped to extend obliquely from the base 14A toward the load-receiving fastener part 110. The horizontally bent portion at the upper end of the arm 14B extends above the load-receiving angle 122.

[0034] The sensor body 16 is supported at the tip of the horizontally bent portion of the arm 14B. The sensor body 16 is disposed above the horizontal plate portion 122B of the load-receiving angle 122. The sensor body 16 has a cylindrical case and is disposed so that its axial direction is the up-down direction. The sensor body 16 supports a contact 18 extending downward from the lower portion of the sensor body 16 so as to be movable in the vertical direction.

[0035] The lower end of the contact 18 is in contact with the upper surface of the horizontal plate portion 122B of the load-receiving angle 122. When the load-receiving angle 122 is displaced upward relative to the beam 104 during an earthquake, the contact 18 moves vertically according to the position of the horizontal plate portion 122B of the load-receiving angle 122. As an example, the contact 18 is always in contact with the upper surface of the horizontal plate portion 122B of the load-receiving angle 122, and moves vertically according to the upward and downward displacement of the horizontal plate portion 122B of the load-receiving angle 122. The displacement sensor 12 measures the amount of lift of the load-receiving angle 122 constituting the load-receiving fastener portion 110 during an earthquake based on the moving position of the contact 18. Although not shown in the drawings, as an example, the displacement sensor 12 is provided on each floor of the building 100.

[0036] In the first embodiment, the displacement sensor 12 measures the amount of floating of the load receiving angle 122 at each time. The displacement sensor 12 outputs information on the amount of floating measured at each time (i.e., measurement data) to the user terminal 30.

[0037] The user terminal 30 receives information on the amount of uplift at each time measured by two displacement sensors 12 on the left and right sides of the width direction of the lower portion 106A of the curtain wall 106. As an example, the user terminal 30 is a personal computer (PC). The user terminal 30 includes a calculation unit (not shown), which calculates the rotation angle of the curtain wall 106 to derive the inter-story deformation of the building 100.

[0038] Next, a method for deriving the inter-story deformation of the building 100 using the user terminal 30 will be described.

[0039] First, the principle of the method for deriving the inter-story deformation of the building 100 will be described. As shown in Fig. 2, the curtain wall 106 rotates as indicated by the arrow R in response to the deformation of the building 100 during an earthquake, thereby following the deformation of the building 100 without deforming the curtain wall 106 itself. At this time, the rotation angle of the curtain wall 106 is a value obtained by dividing the vertical displacement Δh of the load-receiving angle 122 of the load-receiving fastener portion 110 by the dimension between the supports of the two load-receiving fastener portions 110 (i.e., the distance between the supports) L.

[0040] Here, the fulcrum (i.e., support point) of the load-receiving fastener part 110 is the contact point between the corner of the base pin 120 and the load-receiving angle 122. In the first embodiment, the contact point between the contactor 18 of the displacement sensor 12 and the load-receiving angle 122 is disposed vertically above the contact point between the corner of the base pin 120 and the load-receiving angle 122. For this reason, the dimension (distance) L between the fulcrums of the two load-receiving fastener parts 110 is equal to the distance between the centers of the contactors 18 of the two load-receiving fastener parts 110 (see FIG. 2).

[0041] On the other hand, the inter-story deformation angle calculated from the inter-story deformation δ and the story height H of the building 100 can be regarded as the same as the rotation angle of the curtain wall 106 as shown in Fig. 2. In other words, by utilizing the balance of the rotation angles described above, the inter-story deformation δ of the building 100 can be easily estimated simply by measuring the vertical displacement Δh of the load-receiving fastener part 110 with the relatively small displacement sensor 12.

[0042] As shown in FIG. 2, when the inter-story deformation of the building 100 is δ, the floor height is H, the vertical displacement is Δh, and the distance between supports is L, the balance between the inter-story deformation angle of the building 100 and the rotation angle of the curtain wall 106 is expressed by the following formula (1). Interlayer deformation angle: δ / H=Δh / L ··· Formula (1)

[0043] By transforming formula (1) into formula (2) below, the inter-story deformation of the building 100 is derived. Interlaminar deformation: δ=Δh×H / L Formula (2)

[0044] However, during an actual earthquake, the building 100 deforms on both the left and right sides, so if interstory deformation progresses in the opposite direction to that shown in Fig. 2, the value of the vertical displacement Δh of the left fulcrum of the load-receiving fastener part 110 will be 0, and conversely, the vertical displacement of the right fulcrum will be large. For this reason, in order to estimate the interstory deformation on both the left and right sides, it is necessary to measure the vertical displacement at both fulcrums of the load-receiving fastener part 110.

[0045] Furthermore, as mentioned above, when building 100 is deformed to the left or right, the vertical displacement of one of the supports is always zero. Therefore, by recording the time history waveforms of the vertical displacement of both supports and synthesizing them at the same time, it is possible to continuously reproduce the left and right movement of the inter-story deformation of building 100.

[0046] 4(A) to 4(D) are diagrams showing the process of deriving the time history waveform of interstory deformation of a building 100 using an interstory deformation measuring device 10. As shown in Fig. 3, the displacement sensors 12 installed at the fulcrums of the left and right load-receiving fastener parts 110 measure the time history displacement of the left and right load-receiving fastener parts 110 during an earthquake.

[0047] As shown in FIG. 4(A), the calculation unit of the user terminal 30 records the vertical displacement 42A of the load-receiving fastener part 110 (i.e., the load-receiving angle 122) measured by the left-side displacement sensor 12. This vertical displacement 42A is a displacement amount displaced from 0 to the positive side. As shown in FIG. 4(B), the calculation unit of the user terminal 30 records the vertical displacement of the load-receiving fastener part 110 (i.e., the load-receiving angle 122) measured by the right-side displacement sensor 12 as a vertical displacement 42B with the polarity reversed. This vertical displacement 42B is a displacement amount displaced from 0 to the negative side. At this time, the left-side vertical displacement 42A and the right-side vertical displacement 42B are shifted on the time axis (i.e., on the horizontal axis t) (see FIGS. 4(A) and (B)).

[0048] As shown in Fig. 4(C), the vertical displacements 42A, 42B recorded by the left and right displacement sensors 12 during an earthquake are combined on the time axis with their polarities reversed to each other to obtain combined vertical displacements 42A, 42B. Furthermore, as shown in Fig. 4(D), the inter-story deformation is calculated using the above formula (2) to create a time history waveform 44 of the inter-story deformation of the building 100. This makes it possible to estimate the inter-story deformation of the building 100.

[0049] (Action and Effects) Next, the operation and effects of the first embodiment will be described.

[0050] The interlayer deformation measuring device 10 of the first embodiment is provided with displacement sensors 12 that measure the amount of lift during an earthquake of load-receiving fastener sections 110 provided on the left and right sides in the width direction of a locking-type curtain wall 106 that is rotatably attached in the in-plane direction within the structural plane of the building 100.

[0051] During an earthquake, the locking-type curtain wall 106 attached within the plane of the building's frame rotates in the in-plane direction following the deformation of the frame. In other words, the curtain wall 106 rotates with the load-receiving angle 122 of one of the left and right load-receiving fastener parts 110 as a fulcrum, and the load-receiving angle 122 of the other load-receiving fastener part 110 on the left or right side lifts up. The amount of lift of the load-receiving angle 122 of the load-receiving fastener part 110 is measured by the displacement sensor 12, and the rotation angle of the curtain wall can be calculated by dividing the amount of lift by the distance between the fulcrums of the load-receiving fastener parts 110.

[0052] The rotation angle of this curtain wall can be considered to be the same as the inter-story deformation angle calculated from the inter-story deformation and floor height of the building 100.

[0053] Therefore, with the interlayer deformation measuring device 10, it is possible to easily check interlayer deformation without using a large device, compared to when measuring interlayer deformation using a large displacement meter equivalent to the floor height of the building 100.

[0054] Generally, in order to directly measure inter-story deformation in a building, large displacement meters with the same height as the upper and lower floors to be measured are installed. In this case, space is required to install the large displacement meters, making simple measurements difficult. To solve this problem, attempts have been made to evaluate the relative deformation of each floor by integrating the acceleration records of seismometers, but there are issues with accuracy, as it is difficult to eliminate the effects of integration constants and noise. In particular, it is difficult to evaluate residual deformation.

[0055] In contrast, the interlayer deformation measuring device 10 of the first embodiment is provided with displacement sensors 12 that measure the amount of lift during an earthquake of the load-receiving fastener parts 110 provided on the left and right sides in the width direction of the curtain wall 106. Therefore, with the interlayer deformation measuring device 10, it is possible to easily check the interlayer deformation of the building 100 without using a large device.

[0056] The interlayer deformation measuring device 10 is a displacement sensor in which the displacement sensor 12 detects the amount of lifting at each time.

[0057] Therefore, in the interstory deformation measuring device 10, the displacement sensor 12 detects the amount of uplift per hour during an earthquake and sends this to the calculation unit of the user terminal 30, thereby deriving the time history waveform of the interstory deformation of the building 100.

[0058] Second Embodiment Next, an interlayer deformation measuring device according to a second embodiment will be described. Note that the same components as those in the first embodiment described above are given the same reference numbers and the description thereof will be omitted.

[0059] An interlayer deformation measuring device 50 of the second embodiment is shown in Fig. 5. In the second embodiment, an interlayer deformation measuring device 50 is provided instead of the interlayer deformation measuring device 10 (see Fig. 3) of the first embodiment provided on the load-receiving fastener portions 110 on the left and right in the width direction of the curtain wall 106 of the building 100 shown in Fig. 1. The interlayer deformation measuring device 50 includes a measuring member 52 that measures the amount of lift of the load-receiving fastener portions 110 provided on the left and right in the width direction of the lower portion 106A of the curtain wall 106 during an earthquake.

[0060] The measuring member 52 is an example of a mechanical scale that stops at a position pushed up by the load receiving angle 122 of the load receiving fastener part 110. Specifically, the measuring member 52 includes a moving piece 54 that moves in the vertical direction along the pin 120B of the base pin 120 and stops at a position pushed up in the direction of arrow C by the load receiving angle 122, and a scale member 56 that is arranged at a position corresponding to the stopping position of the moving piece 54.

[0061] The moving piece 54 extends in a horizontal direction perpendicular to the axial direction of the pin 120B, and the lower surface of the moving piece 54 contacts the horizontal plate portion 122B of the load-receiving angle 122. The moving piece 54 has a curved recess 54A that follows the outer circumferential surface of the pin 120B, and the pin 120B fits into the recess 54A of the moving piece 54. As an example, at least the inner surface of the recess 54A of the moving piece 54 is made of rubber. As a result, the moving piece 54 stops at a position where it is pushed up in the direction of arrow C by the horizontal plate portion 122B of the load-receiving angle 122 due to the frictional force with the pin 120B.

[0062] The scale member 56 is a caliper-like scale with graduations of the inter-story deformation angle and inter-story deformation prepared in advance using the above formulas (1) and (2). For example, when performing a damage assessment of the building 100, it is not always necessary to record the deformation over time for the inter-story deformation, and it may be sufficient to know the maximum value. The scale member 56 has graduations of the inter-story deformation angle and the maximum value of the inter-story deformation corresponding to the movement position of the upper surface of the moving piece 54.

[0063] 5, the measuring member 52 is provided on one of the load-receiving fastener portions 110 on the left and right sides in the width direction of the curtain wall 106. Although not shown, a similar measuring member 52 is provided on the other load-receiving fastener portion 110 on the left and right sides in the width direction of the curtain wall 106. Other configurations of the interlayer deformation measuring device 50 are similar to those of the interlayer deformation measuring device 10 of the first embodiment.

[0064] The interlayer deformation measuring device 50 can provide the following actions and effects in addition to the actions and effects provided by the same configuration as the interlayer deformation measuring device 10 of the first embodiment.

[0065] The interstory deformation measuring device 50 is equipped with a measuring member 52 that measures the amount of lift during an earthquake of the load-receiving fastener parts 110 provided on the left and right sides in the width direction of the curtain wall 106. In the measuring member 52, a moving piece 54 stops at a position where it is pushed up in the direction of arrow C by the load-receiving angle 122 of the load-receiving fastener part 110. Then, by reading the scale of the interstory deformation angle and the interstory deformation on the scale member 56 that corresponds to the position of the upper surface of the moving piece 54, the maximum interstory deformation amount during an earthquake can be confirmed after an earthquake.

[0066] Therefore, in the interlayer deformation measuring device 50, there is no need to derive the time history waveform of the interlayer deformation of the building 100, and if it is sufficient to record the maximum value of the interlayer deformation of the building 100 during an earthquake, the cost of installing the device can be reduced.

[0067] Furthermore, the interlayer deformation measuring device 50 can be manufactured at a lower cost than the interlayer deformation measuring device 10 of the first embodiment and is maintenance-free, making it easy to apply to buildings having multiple floors, such as high-rise buildings.

[0068] Third Embodiment Next, an interlayer deformation measuring device according to a third embodiment will be described. Note that the same components as those in the first and second embodiments are given the same reference numerals and the description thereof will be omitted.

[0069] An interlayer deformation measuring device 60 of a third embodiment is shown in Fig. 6. In the third embodiment, an interlayer deformation measuring device 60 is provided instead of the interlayer deformation measuring device 10 (see Fig. 3) of the first embodiment provided on the load-receiving fastener portions 110 on the left and right in the width direction of the curtain wall 106 of the building 100 shown in Fig. 1. The interlayer deformation measuring device 60 includes a measuring member 62 that measures the amount of lift of the load-receiving fastener portions 110 provided on the left and right in the width direction of the lower portion 106A of the curtain wall 106 during an earthquake.

[0070] The measuring member 62 is an example of a mechanical scale that stops at a position pushed up by the load-receiving angle 122 of the load-receiving fastener part 110. Specifically, the measuring member 62 has a cap 64 that moves in the vertical direction along the pin 120B of the base pin 120 and stops at a position pushed up by the load-receiving angle 122 in the direction of arrow C.

[0071] The cap 64 is a cone-shaped member with the top cut off, and is a trapezoidal member when viewed from the front. The cap 64 has a hole 64A through which the pin 120B passes. The bottom surface of the cap 64 is in contact with the side plate portion 122B of the load-receiving angle 122. As an example, at least the area near the inner circumferential surface of the hole 64A of the cap 64 is made of rubber. As a result, the cap 64 stops at a position where it is pushed up in the direction of arrow C by the side plate portion 122B of the load-receiving angle 122 due to the frictional force with the pin 120B.

[0072] In the interlayer deformation measuring device 60, during an earthquake, the cap 64 stops at the position where it was pushed up in the direction of arrow C. After the earthquake, the amount of movement of the cap 64 is measured, and the interlayer displacement angle and maximum interlayer deformation of the building 100 are calculated from the above formulas (1) and (2). Other configurations of the interlayer deformation measuring device 60 are similar to those of the interlayer deformation measuring device 10 of the first embodiment.

[0073] The interlayer deformation measuring device 60 can provide the following actions and effects in addition to the actions and effects provided by the same configuration as the interlayer deformation measuring device 10 of the first embodiment.

[0074] The interstory deformation measuring device 60 is equipped with a measuring member 62 that measures the amount of lift during an earthquake of the load-receiving fastener parts 110 provided on the left and right sides in the width direction of the curtain wall 106. During an earthquake, the measuring member 62 stops at a position where the cap 64 is pushed up in the direction of arrow C by the load-receiving angle 122 of the load-receiving fastener part 110. Then, by measuring the amount of movement of the cap 64, the maximum interstory deformation during an earthquake can be confirmed after the earthquake.

[0075] Therefore, in the interlayer deformation measuring device 60, there is no need to derive the time history waveform of the interlayer deformation of the building 100, and if it is sufficient to record the maximum value of the interlayer deformation of the building 100 during an earthquake, the cost of installing the device can be reduced.

[0076] Furthermore, the interlayer deformation measuring device 60 can be manufactured at a lower cost than the interlayer deformation measuring device 10 of the first embodiment and is maintenance-free, making it easy to apply to buildings having multiple floors, such as high-rise buildings.

[0077] [Fourth embodiment] Next, an interlayer deformation measuring device according to a fourth embodiment will be described. Note that the same components as those in the first to third embodiments described above are given the same reference numerals and the description thereof will be omitted.

[0078] (Overall configuration of interlayer deformation measuring device) Fig. 7 shows an interlayer deformation measuring device 70 of a fourth embodiment. In the interlayer deformation measuring device 70 of the fourth embodiment, displacement sensors 72 are provided in anti-sway fastener portions 112 on the left and right sides in the width direction of the curtain wall 106, instead of the displacement sensors 12 (see Fig. 3) of the interlayer deformation measuring device 10 of the first embodiment provided in the load-receiving fastener portions 110 on the left and right sides in the width direction of the curtain wall 106 of the building 100 shown in Fig. 1. The anti-sway fastener portions 112 are an example of anti-sway portions.

[0079] 7, the displacement sensor 72 is an example of a measuring member, and measures the vertical displacement during an earthquake of the anchor bolts 132 that penetrate the anti-sway fastener parts 112 provided on the left and right in the width direction of the upper part 106B of the curtain wall 106. The displacement sensors 72 are provided in the anti-sway fastener parts 112 that are provided on the left and right in the width direction of the upper part 106B of the curtain wall 106. The anchor bolts 132 are an example of a member that penetrates the anti-sway parts.

[0080] The two displacement sensors 72 are each electrically connected by wire to the user terminal 90. The two displacement sensors 72 may be configured to transmit data to the user terminal 90 by wireless communication. The displacement sensors 72 transmit the measured data to the user terminal 90.

[0081] (Displacement Sensor) The displacement sensor 72 comprises a mounting portion 74 attached to the lower portion of the beam 104, a sensor body 76 supported by the lower portion of the mounting portion 74, and a contactor 78 extending upward from the sensor body 76 and movable in the vertical direction.

[0082] The mounting part 74 includes a base 74A attached to the lower part of the beam 104 by a mounting tool (not shown), and an arm 74B extending downward from the base 74A. The arm 74B is L-shaped and is bent horizontally from the lower end of a rod extending downward from the base 74A. The arm 74B is shaped to extend obliquely from the base 74A fixed to the lower part of the beam 104 toward the anti-sway fastener part 112.

[0083] The sensor body 76 is supported at the tip of a horizontally bent portion of the arm 74B. The sensor body 76 supports a contact 78 extending upward from the top of the sensor body 76 so as to be movable in the vertical direction.

[0084] As an example, a plate-like body 78A is joined to the upper end of the contactor 78, and the upper surface of the plate-like body 78A extends in a direction substantially perpendicular to the longitudinal direction of the contactor 78. The upper surface of the plate-like body 78A is in contact with a nut 134 fastened to the anchor bolt 132. Although not shown, the contactor 78 is given an upward pressing force by an elastic member such as a spring so that the contactor 78 is always in contact with the lower part of the nut 134. When the curtain wall 106 rotates clockwise during an earthquake, the anchor bolt 132 on the left side in FIG. 7 moves upward, and when the curtain wall 106 rotates counterclockwise, the anchor bolt 132 on the left side in FIG. 7 moves downward. That is, the anchor bolt 132 protruding from the curtain wall 106 moves up and down within the long hole 136 in response to the rotation of the curtain wall 106. As a result, the contactor 78 in contact with the nut 134 fastened to the anchor bolt 132 moves up and down. At this time, the upper surface of the plate-shaped body 78A of the contactor 78 comes into contact with the nut 134, thereby preventing the nut 134 from coming off the plate-shaped body 78A. The displacement sensor 72 measures the amount of vertical movement of the anchor bolt 132 during an earthquake based on the movement position of the contactor 78.

[0085] In the fourth embodiment, the displacement sensor 72 measures the vertical movement amount at each time of the anchor bolt 132. The displacement sensor 72 outputs to the user terminal 90 information on the measured vertical movement amount at each time.

[0086] The user terminal 90 receives information on the amount of vertical movement at each time measured by two displacement sensors 72 on the left and right in the width direction of the upper part 106B of the curtain wall 106. The user terminal 90 includes a calculation unit (not shown), which calculates the rotation angle of the curtain wall 106 to derive the interstory deformation of the building 100. The method of calculating the rotation angle of the curtain wall 106 and the method of deriving the interstory deformation of the building 100 differ from the interstory deformation measuring device 10 of the first embodiment in the following points.

[0087] In the fourth embodiment, the left and right anchor bolts 132 each move symmetrically up and down, starting from the center of the vertical long hole 136. Therefore, unlike the measurement of the lower part of the curtain wall 106 in the first embodiment (see Figure 3), it is possible to calculate the inter-layer deformation by measuring only the displacement sensor 72 on either the left or right side.

[0088] Moreover, for the above operation, the method of calculating the interlayer deformation δ is changed as follows for the interlayer deformation measuring device 10 of the first embodiment.

[0089] Interlaminar deformation: δ=Δh×H / L Formula (2) In formula (2), L is the distance between the left and right anchor bolts 132. The vertical displacement Δh is calculated using the measurement value (±y) of either the left or right displacement sensor 72, and is given by Δh = ±y × 2. The displacement waveform of this Δh has the same image as the waveform in Figure 4 (C).

[0090] (Action and Effects) Next, the operation and effects of the fourth embodiment will be described.

[0091] The interlayer deformation measuring device 70 is equipped with a displacement sensor 72 that measures the amount of vertical movement of the anchor bolts 132 that pass through the anti-sway fastener portions 112 provided on the left and right sides of the width direction of the locking-type curtain wall 106 during an earthquake.

[0092] The locking-type curtain wall 106 attached within the plane of the building 100's frame rotates in the in-plane direction during an earthquake, following the deformation of the frame. That is, in the case of the anti-sway fastener part 112, the rotation of the curtain wall 106 causes the anchor bolt 132 protruding from the curtain wall 106 and penetrating the anti-sway fastener part 112 to move up and down. The amount of up and down movement of the anchor bolt 132 penetrating the anti-sway fastener part 112 is measured by the displacement sensor 72, and the rotation angle of the curtain wall 106 can be calculated by dividing the amount of up and down movement by the distance between the left and right anchor bolts 132 (in the fourth embodiment, the distance between the centers of the contacts 78 of the two displacement sensors 72).

[0093] The rotation angle of this curtain wall 106 can be considered to be the same as the inter-story deformation angle calculated from the inter-story deformation and floor height of the building 100.

[0094] Therefore, with the inter-layer deformation measuring device 70, compared to measuring inter-layer deformation using a large displacement meter equivalent to the floor height of the building 100, it is possible to easily check inter-layer deformation without using a large device.

[0095] In addition, in the interstory deformation measuring device 70, the displacement sensor 72 detects the vertical movement amount for each hour. Therefore, in the interstory deformation measuring device 70, the time history waveform of the interstory deformation of the building 100 can be derived by detecting the vertical movement amount for each hour during an earthquake and sending it to the calculation unit.

[0096] 〔others〕 In the second embodiment, the measuring member 52 of the interlayer deformation measuring device 50 shown in Fig. 5 is provided in the load-receiving fastener part 110, but the present disclosure is not limited to this configuration. For example, the measuring member 52 of the interlayer deformation measuring device 50 may be provided in the anti-sway fastener part 112. That is, the measuring member 52 may be a mechanical scale that stops at a position pressed down by the anti-sway fastener part 112. Specifically, the measuring member 52 may be configured to include a moving piece 54 that stops at a position pressed down by the mounting angle 130 of the anti-sway fastener part 112, and a scale member 56 that corresponds to the position of the moving piece 54.

[0097] In the third embodiment, the measuring member 62 of the interlayer deformation measuring device 60 shown in Fig. 6 is provided in the load-receiving fastener part 110, but the present disclosure is not limited to this configuration. For example, the measuring member 62 of the interlayer deformation measuring device 60 may be provided in the anti-sway fastener part 112. That is, the measuring member 62 may be a mechanical scale that stops at a position pressed down by an anchor bolt 132 penetrating the anti-sway fastener part 112. Specifically, the measuring member 62 may be configured to include a cap 64 that stops at a position pressed down by an anchor bolt 132 penetrating the anti-sway fastener part 112.

[0098] In the third embodiment, the movement amount of the cap 64 is measured and the maximum interstory deformation is calculated, but the present disclosure is not limited to this configuration. For example, a scale member may be provided that marks the maximum interstory deformation angle and interstory deformation according to the movement position of the cap 64.

[0099] In the first embodiment, the displacement sensor 12 is provided on all floors of the building 100. However, instead of this configuration, the displacement sensor 12 may be set on any floor where a large inter-story deformation or damage is expected during an earthquake. When the displacement sensor 12 is installed on any floor, the measuring member 52 of the second embodiment or the measuring member 62 of the third embodiment may be used in combination on floors where the displacement sensor 12 is not installed in order to grasp the deformation state. This allows the inexpensive and maintenance-free measuring member 52 or measuring member 62 to supplement measurements on floors other than the floor where the displacement sensor 12 is installed. Also, the measuring member 52 of the second embodiment or the measuring member 62 of the third embodiment may be installed on all floors of the building 100 from the beginning.

[0100] In the second embodiment, the configuration of the moving piece 54 can be changed. For example, the moving piece 54 may be entirely made of rubber, and may be configured to stop in a state where it moves along the pin 120B.

[0101] In the third embodiment, the configuration of the cap 64 can be changed. For example, the entire cap 64 may be made of rubber, and the cap 64 may be configured to move along the pin 120B and stop in the state.

[0102] In the fourth embodiment, the displacement sensor 72 was provided to measure the amount of vertical movement of the anchor bolt 132 that penetrates the left and right anti-sway fastener parts 112 of the curtain wall 106 during an earthquake, but the present disclosure is not limited to this configuration. For example, since the left and right anchor bolts 132 each move symmetrically up and down with the center of the long hole 136 aligned in the vertical direction as the starting point, a configuration in which the displacement sensor 72 that measures the amount of vertical movement of the anchor bolt 132 during an earthquake is provided on only one side of either the left or right anti-sway fastener parts 112 may be used.

[0103] In addition, in the fourth embodiment, the contact 78 of the displacement sensor 72 is in contact with the nut 134, but the present disclosure is not limited to this configuration, and the contact 78 of the displacement sensor 72 may be in contact with the anchor bolt 132. Furthermore, the displacement sensor is not limited to a contact type displacement sensor, but may be a wire type displacement sensor.

[0104] Although the present invention has been described in detail with respect to a specific embodiment, it will be apparent to those skilled in the art that the present invention is not limited to such an embodiment, and that various other embodiments are possible within the scope of the present invention. [Explanation of symbols]

[0105] 10. Interlaminar deformation measuring device 12 Displacement sensor (an example of a measuring device) 50 Interlaminar deformation measuring device 52 Measuring Parts 54 Moving piece (an example of a mechanical scale) 56 Scale components (an example of a mechanical scale) 60 Interlaminar deformation measuring device 62 Measuring Parts 64 Cap (an example of a mechanical scale) 70 Interlaminar deformation measuring device 72 Displacement sensor (example of measuring device) 100 Buildings 106 Curtain Wall 110 Load-receiving fastener part (an example of a load-receiving part) 112 Anti-vibration fastener part (an example of an anti-vibration part) 132 Anchor bolt (an example of a component that penetrates the anti-vibration part)

Claims

1. An inter-layer deformation measuring device equipped with a measuring member that measures the amount of lift during an earthquake of a load-receiving portion provided on the left and right sides of the width direction of a locking-type curtain wall that is attached to the building's structural surface so as to be rotatable in-plane, or the amount of vertical movement during an earthquake of a member that penetrates the anti-sway portions provided on the left and right sides of the width direction of the curtain wall.

2. 2. The interlayer deformation measuring device according to claim 1, wherein the measuring member is a displacement sensor that detects the amount of lift or the amount of up-down movement per unit time.

3. 2. The interlayer deformation measuring device according to claim 1, wherein the measuring member is a mechanical scale that stops at a position pushed up by the load receiving portion or at a position pushed down by a member that penetrates the vibration prevention portion.

Images