JPH10122912A - Framework with deformation recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install a device which is capable of easily and positively detect and record to what degree a maximum deformation has been actually experienced by the framework when a structure is damaged by earthquake, etc., and which is of simple and cheap construction, in many buildings. SOLUTION: A deformation recording device 4 consisting of a cantilever operating member 5, a guide member 6, and a slide member 7, is incorporated in the middle in the opening plane of a framework 3 composed of pillars 1 and beams 2 of a structure. The, when the framework is deformed in one direction, the slide member 7 is pressed by the operating member 5 to be displaced. When the framework is deformed in opposite direction to the above deformation, the slide member retains its position, and after vibrating deformation is stopped, the slide member 7 is adapted to record a maximum displacement which has been experienced by itself until now.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deformation recording apparatus capable of detecting and recording a maximum deformation actually experienced by a frame of a structure when the structure receives a horizontal external force due to an earthquake or the like. It is related to an attached frame.

[0002]

2. Description of the Related Art Conventionally, there is a seismometer as a device for detecting and recording a horizontal external force applied to a structure due to an earthquake, a strong wind, etc., and the structure is damaged, and how much the frame is actually deformed. This could be determined by integrating the acceleration or velocity records of the seismic waves.

[0003]

However, it is practically impossible to install expensive items such as seismometers in many buildings, and maintenance is also difficult. In fact, only a few buildings have seismometers installed, so it was not possible to know how much maximum deformation was experienced even if the building was damaged by an earthquake or the like. When there is a seismograph, it is possible to estimate the maximum deformation by response analysis, but the analysis result could not be verified.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned situation, and has as its object the purpose of experiencing the maximum deformation of a frame when a structure is damaged by an earthquake or the like. Can be easily and reliably detected and recorded, and a simple and inexpensive device can be provided.
An object of the present invention is to provide a frame with a deformation recording device that can be installed in many buildings.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a frame composed of columns and beams of a structure, wherein when the frame is deformed in one direction, it is displaced following the deformation of the frame, and A deformation recording device having a slide member for holding a position without operating when the frame is deformed in the opposite direction is incorporated in the plane of the frame (claim 1). By arranging two slide members at an interval in the deformation direction of the frame in the deformation recording device, or by installing two deformation recording devices having one slide member,
Deformation in both directions can be detected and recorded.

More specifically, the deformation recording device comprises an operating member and a guide member which can move integrally with the frame, and a slide member which is movably attached to the guide member and can be moved by the operating member. For example, from the center of one of the upper and lower beams, protruding a cantilevered operating member orthogonal to the beam, the tip is to the front of the other opposing beam,
A slide member is mounted on the other beam via a guide member such that the tip of the cantilevered operating member is in contact with the slide member. The slide member moves when pressed by the operation member, and is attached to the guide member so that when the operation member moves in the opposite direction, the stationary state can be maintained at the position immediately before the slide member. (See claim 2 and FIG. 1) The guide member is disposed at the center between the upper and lower beams via a support member, and the tip of the half-length operating member is in contact with the slide member of the guide member. (See claim 2 and FIG. 3). In addition, a horizontal member is bridged between the centers of the two columns of the frame, the guide member and the slide member are respectively attached to upper and lower beams, and a cantilevered operating member is vertically projected vertically from the center of the horizontal member. Alternatively, the tip of each operating member may be in contact with the upper and lower slide members (see claim 2 and FIG. 4).

Although the above description is for a case where there is no wall at the opening of the frame, in the case of a frame with a wall, a deformation recording device can be installed on one side or both sides of the wall.
Not shown). Further, in the case of a frame with a brace in which a shear panel is incorporated, a reduced version of the above-described deformation recording device can be incorporated in the shear panel (see claim 4, FIGS. 5 and 6).

In the deformation recording device, a wire rope or the like is wound on a diagonal line of the frame to form a guide member, and a slide member is movably mounted on the guide member, and the wire rope is fixed to the frame and the wire rope is inserted therethrough. The slide member may be moved by a member (see claim 5 and FIG. 7).

In the above construction, when the frame is deformed due to an earthquake or the like and the upper and lower beams relatively move, the slide member is pushed by the operating member integrated with the frame, and the guide member integrated with the frame is moved. The slide member is displaced. This displacement is equal to the horizontal deformation amount of the frame (when the guide member and the slide member are arranged vertically, the total displacement of each slide member is the horizontal deformation amount of the frame). When the frame is deformed in one direction and the operating member presses the slide member, and the deformation of the frame is reversed in the opposite direction, the slide member has no restoring force, and thus maintains the position immediately before the inversion. Furthermore, when a deformation larger than the deformation is applied, the slide member updates the displacement by that amount, and when the deformation is smaller than the deformation, the position of the slide member does not change and the slide member records the maximum displacement experienced in the past. . That is, after the vibration deformation of the frame stops, the position of the slide member confirmed indicates the maximum deformation amount of the frame.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. 1 and 2 show a first embodiment of the present invention. FIG. 3 shows a second embodiment of the present invention. FIG. 4 shows a third embodiment of the present invention. FIG. 5 shows a fourth embodiment of the present invention.
FIG. 6 shows a fifth embodiment of the present invention. FIG. 7 shows a sixth embodiment of the present invention.
An example will be described.

In the first embodiment shown in FIGS. 1 and 2,
Frame 3 composed of left and right pillars 1, 1 and upper and lower beams 2, 2
A deformation recording device 4 including a cantilevered operating member 5, a guide member 6, a slide member 7, and the like is installed in the center of the opening. The cantilevered operating member 5 is a member for operating the slide member 7 provided on the guide member 6, and has a lower end fixed to the upper surface of the central portion of the lower beam 2 and a tip of a column-shaped main body 5 a protruding vertically upward. Position the surface slightly below the upper beam 2,
The operating piece 5b is projected from the tip of the main body 5a.

The guide member 6 is composed of a pair of L-shaped plate-like members 6a, 6a fixed to the lower surface of the central portion of the upper beam 2 so as to extend a sufficient length in the longitudinal direction of the beam 2. In addition, the operation piece 5b of the operation member 5 is configured to be sandwiched from both sides in a direction orthogonal to the frame surface. In addition, each plate member 6
In the hanging pieces a and 6a, slide holes 6b-1 and 6b-2 which are sufficiently long in the longitudinal direction of the beam 2 are formed so as to be located on both sides of the operation piece 5b, and the slide holes 6b-1 and 6b- 2
, Slide members 7-1 and 7-2 are attached thereto.

As shown in FIG. 2, the slide member 7 comprises a pin 7a inserted into the slide hole 6b, and a locking head 7b provided at both ends of the pin to prevent the pin from coming off.

Each of the slide members 7-1 and 7-2 includes
As shown in FIG. 1, the slide holes 6b-1 and 6b-2 are arranged so as to be in contact with the operation piece 5b at the ends. Furthermore, resistance is given to the slide member 7 by, for example, the pressing member 8 so that the slide members 7-1 and 7-2 do not move with slight vibration or force. This holding member 8
As shown in FIG. 2, the upper portion of a plate member made of rubber or the like is mounted on the slide holes 6b-1 and 6b-2, and the lower portion presses the locking head 7b of the slide member 7 so that it can be moved at any position. The slide members 7-1 and 7-2 are prevented from moving with a slight force.

FIG. 1C shows a state in which the frame 3 of the first embodiment has been deformed by a horizontal external force indicated by a solid arrow.
The guide member 6 integrated with the upper beam 2 moves with respect to the operating member 5 integrated with the lower beam 2, and the slide member 7-1 constantly in contact with the operating piece 5b of the operating member 5 is pushed. The frame 3 is displaced with respect to the guide member 6 and the displacement δ ₁₁ from the initial position is
Represents the amount of deformation of the body. Then, the deformation of the Frame 3 is reversed, the slide member 7-1 retains the same position, whereas the actuating member 5 pushes the slide member 7-2, the slide member 7-2 is displaced by [delta] _12.

This operation continues until the vibration due to the earthquake or the like stops, but since the slide member 7 has no restoring force, the maximum displacement of the slide member 7 experienced in the past (the maximum displacement ), As long as you do not cross it. Therefore, the distance δ between the position where the slide members 7-1 and 7-2 stop after the vibration stops and the initial position.
₁₁ and δ ₁₂ are the past maximum empirical deformation amounts of the frame 3 in the respective directions. In the first embodiment, the guide member 6 and the slide member 7 may be disposed on the lower beam 2 and the operating member 5 may be mounted on the upper beam 2, contrary to the illustrated example.

Next, in a second embodiment (showing a deformed state) shown in FIG. 3, the guide member 6 is installed at an intermediate position between the upper and lower beams 2, and the guide member 6 is placed on the lower portion of the upper beam 2 from the center lower surface. The columnar support member 9 is hung down, and the guide member 6 is fixed to the lower surface of the support member 9.

The cantilevered operating member 5 is about half as long as the operating member of the first embodiment, and the operating piece 5a is inserted between the pair of plate members 6a. The configurations of the guide member 6 and the slide member 7 are the same as in the first embodiment. Also in this case, the distances δ ₂₁ and δ ₂₂ between the positions where the slide members 7-1 and 7-2 stop and the initial position are the past maximum empirical deformation amounts of the frame 3 in the respective directions. Note that this second
Also in the embodiment, the operating member 5 may be attached to the upper beam 2, and the guide member 6, the slide member 7, and the support member 9 may be attached to the lower beam 2.

FIG. 4 shows a third embodiment (showing a deformed state).
Is provided with an actuating member 5 in the center of the frame 3 and upper and lower beams 2
2, a guide member 6 and a slide member 7 are provided, and the operating member 5 includes a horizontal operating member 10 and a vertical operating member 11. The horizontal operating member 10 extends horizontally between the upper and lower beams 2 and 2 horizontally, and has one end rotatably joined to the intermediate portion of the column 1 via a pin 12 and the other end via a roller 13 and a slot. The frame 3 is rotatably and horizontally movable so that no force acts on the horizontal operating member 10 when the frame 3 is deformed. The vertical operating member 11 is
Projecting vertically upward and downward from the center of
Is the length before the upper and lower beams 2 and the upper and lower operating pieces 11
b is a pair of plate members 6 of the upper and lower guide members 6, respectively.
a and 6a. The configurations of the guide member 6 and the slide member 7 are the same as in the first embodiment.

In the third embodiment, the upper beam 2 and the lower beam 2 move relative to each other with respect to the operating members 10 and 11 integral with the column 1, and are pushed by the vertical operating member 11 to generate a force. Δ ₃₁ (= δ _{31 U)}
+ Δ _31L ) is the deformation amount of the main body of the frame 3. Also in this case, the distances δ ₃₁ and δ ₃₂ between the positions where the slide members 7-1 and 7-2 stop and the initial position are the past maximum empirical deformation amounts of the frame 3 in the respective directions.

In the above-described first to third embodiments, the deformation recording device 4 is incorporated in the opening of the frame 3. However, even if the frame has a wall, the deformation recording device 4 can be mounted on one or both sides of the wall. It can be installed alongside. Although the case where the deformation recording device 4 is directly attached to the main body of the frame 3 has been described above, the frame 3 with the brace has the shear panel 21 at the intersection of the brace 20 as shown in FIG. In such a case, the sheared panel 21 may be incorporated with the downsized deformation recording device 4. 5 and 6 show an example in which the deformation recording device 4 is incorporated in the shear panel 21. FIG.

Fourth embodiment shown in FIG. 5 (showing a deformed state)
Is a miniaturized version of the concept of the second embodiment, in which a cantilevered plate-shaped operating member 22 is hung from the lower surface of the central portion of the upper flange 21a of the shear panel 21 to lower the lower flange 21a.
A cantilevered columnar support member 23 is protruded from the upper surface of the central portion of a, and a slide member 25 is mounted on the support member 23 via a guide member 24. The operating member 22 and the support member 23 are arranged at the same position in a front view and shifted in a direction orthogonal to the deformation direction in a plan view in a state where the frame 3 is not deformed. A thin guide member 24 through which the slide member 25 is inserted is attached. The slide member 25 has a plate shape, and an engagement pin 25a that comes into contact with the operation member 22 protrudes from one end. Note that the slide member 25 is prevented from moving with a small force, for example, by applying a large frictional resistance between the guide member 24 and the slide member 25.

In the deformation recording device 4 having the above structure,
Since there is only one slide member, only one direction of deformation can be detected, so as shown in FIG.
The two deformation recording devices 4-1 and 4-2 are installed on both sides of the shear panel 21 with the slide members 25-1 and 25-2 reversed. In the case of the fourth embodiment, the amount of shear deformation of the shear panel 21 is detected. However, as in the first and second embodiments, the positions where the slide members 25-1 and 25-2 stop and the initial position are determined. distance [delta] _41, [delta] ₄₂ becomes the largest ever experience deformation of the shear panel 21 in each direction.

FIG. 6 shows a fifth embodiment (showing a deformed state).
Is a miniaturized version of the concept of the third embodiment, in which the operating member 30 is formed of a cross-shaped plate in a front view, and both ends of the horizontal operating member 31 are connected to the side flange 21b via the pins 12 and the rollers 13. Each is attached. The guide member 6
It is fixed to the upper surface of the upper flange 21a and the lower surface of the lower flange 21a, respectively. The operating member 30 is shown in FIG.
As shown in (b), it is provided on the front and back surfaces of the shear panel 21, and the upper and lower ends of the vertical operating member 32 are attached to the outside of the pair of plate members 6a, 6a, respectively.

Also in the case of the fifth embodiment, the amount of shear deformation of the shear panel 21 is detected in the same manner as in the fourth embodiment, and the upper and lower slide members 7-1 and the upper and lower slide members 7-1 are similar to the third embodiment. The sum δ ₅₁ , δ ₅₂ of the displacement of the slide member 7-2 is the past maximum empirical deformation amount of the shear panel 21 in each direction. In the fifth embodiment, the operating member 30
Are provided on both the front and back surfaces of the shear panel 21, so that the accuracy can be improved by averaging the values detected and recorded on the front and back surfaces.

Next, a sixth embodiment shown in FIG. 7 is an example in which a wire rope is used for a guide member of a slide member, and a wire rope 40 and a winding device 41 of the wire rope 40 are used.
, The operation member 42, the two slide members 43, etc., constitute the deformation recording device 4. The wire rope 40
One end is fixed to one corner of the frame 3 via a fixing bracket, and the other end is wound around a winding device 41 attached to the mounting bracket 44 at the opposite corner, so that the frame 3 is positioned on a diagonal line. It is stretched. The operating member 42 is a stopper of the slide member 43, and is fixed to the tip of a portion 44a of the mounting bracket 44 protruding along the wire rope 40, and the insertion hole 4
The wire rope 40 is inserted through 2a. Slide member 4
3 is fixed to the wire rope 40 so as to sandwich the operating member 42. The slide member 43 is a wire rope 4
0 to prevent it from moving with a small force.

The winding device 41 winds the wire rope 40 by the biasing force of a built-in spring or the like.
So that it is always stretched. In this state, the two slide members 43-1 and 43-2 are located on both sides of the operating member 42. From this state, when a horizontal force in the direction indicated by the solid line in the drawing acts due to an earthquake or the like, the frame 3 is deformed. FIG.
(C), the wire rope 40 is wound, movement of the slide member 43-1 is prevented by the actuation member 42, the displacement [delta] ₆₁ to move relative to the slide member 43 - wire rope 40 Occurs. The moved slide member 43-1 is not moved unless a displacement larger than the displacement occurs.
Hold that position. Note that one of the slide members 43-
2 does not work.

When the deformation of the frame 3 is the reverse of the above, FIG.
(D), the wire rope 40 is unwound, the movement of the slide member 43-2 is prevented by the actuation member 42, the displacement [delta] ₆₂ to move relative to the slide member 43-2 wire rope 40 Occurs.

One of the slide members 43-1 holds the displacement position. Also in this case, the slide members 43-1 and
Distance δ ₆₁ , δ ₆₂ between the position where 43-2 stops and the initial position
Is the past maximum empirical deformation amount of the frame 3 in each direction.

[0030]

According to the present invention, when a frame composed of columns and beams is deformed in one direction, the frame is displaced following the deformation of the frame,
In addition, since the deformation recording device having a slide member for holding the position without operating when the frame is deformed in the direction opposite to the deformation is incorporated in the plane of the frame, the following effects are obtained.

(1) The maximum deformation actually experienced by the frame in response to a horizontal external force such as an earthquake can be easily and reliably detected and recorded, and the degree of damage to the building is clarified.

(2) An actual record of the deformation of the building according to the present invention;
Since the results can be compared with the response analysis results of the building, the analysis results can be verified, which contributes to the improvement of the analysis model.
For example, it is useful for elucidating the degree of influence of secondary members and exterior goods on the vibration properties of the frame.

(3) The deformation recording device is simpler than seismometers, extremely inexpensive, and maintenance-free.
Can be installed in many buildings.

[Brief description of the drawings]

FIG. 1 is a first embodiment of a frame with a deformation recording device according to the present invention, wherein (a) is a front view, (b) is a side view, and (c) is a front view showing a deformed state.

FIG. 2 is a partially detailed side view of the frame with a deformation recording device in FIG. 1;

3A and 3B show a second embodiment of a frame with a deformation recording device according to the present invention, wherein FIG. 3A is a front view showing a deformed state, and FIG. 3B is a side view.

4A and 4B show a third embodiment of a frame with a deformation recording device according to the present invention, wherein FIG. 4A is a front view showing a deformed state, and FIG. 4B is a side view.

5A and 5B show a fourth embodiment of a frame with a deformation recording device according to the present invention, wherein FIG. 5A is a front view of a frame with a brace having a shear panel, and FIG. 5B is a portion showing a deformed state of the shear panel. FIG. 2C is a front view, and FIG.

FIG. 6 is a fifth embodiment of a frame with a deformation recording device according to the present invention, wherein (a) is a partial front view showing a deformed state of a shear panel portion, and (b) is a side view thereof.

7A and 7B are a sixth embodiment of a frame with a deformation recording device according to the present invention, wherein FIG. 7A is a front view, FIG. 7B is a partially detailed front view thereof, and FIG. 7C is a state after being deformed in one direction. (D) is a partial detailed front view showing a state after being displaced in the reverse direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Column 2 ... Beam 3 ... Frame 4 ... Deformation recording device 5 ... Operating member 6 ... Guide member 7 ... Slide member 8 ... Holding member 9 ... Support member 10 ... Horizontal operating member 11 ... Vertical operating member 12 ... Pin 13 ... Roller Reference Signs List 20 brace 21 shear panel 22 operating member 23 supporting member 24 guide member 25 sliding member 30 operating member 31 horizontal operating member 32 vertical operating member 40 wire rope 41 winding device 42 operating member 43: slide member 44: mounting bracket

Claims (5)

[Claims] In a frame composed of columns and beams of a structure, when the frame is deformed in one direction, it is displaced following the deformation of the frame, and when the frame is deformed in a direction opposite to the deformation. A frame with a deformation recording device, wherein a deformation recording device having a slide member for holding a position without operating is incorporated in the plane of the frame. 2. The frame with a deformation recording device according to claim 1, wherein the deformation recording device has a cantilever member orthogonal to the beam of the frame, and the cantilever member is fixed to the beam of the frame, or A frame with a deformation recording device, wherein the frame is attached to a pillar of the vehicle through a horizontal member. 3. A modification according to claim 1, wherein a wall is provided in the frame, and a modification recording device is provided on one side or both sides of the wall. Frame with recording device. 4. The frame with a deformation recording device according to claim 1, wherein a shear panel is provided in the frame via a brace, and the deformation recording device is incorporated in the shear panel. Frame. 5. The frame with a deformation recording device according to claim 1, wherein the deformation recording device has a member bridged on a diagonal line of the frame, and the member is provided with a slide member. Frame with deformation recording device.