JP3846864B2 - Residential vibration control structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technology of a vibration control structure disposed on a wall structure of a house.
[0002]
[Prior art]
Conventionally, as a means of improving seismic resistance in structures such as buildings and houses, hydraulic dampers have been installed instead of braces mounted at diagonal positions on rectangular wall structures, or upper and lower A method of attaching a hydraulic damper between members projecting from a beam is known.
In any of these methods, the rectangular wall structure is deformed at the joint, and macroscopically, for example, when the rectangular structure is deformed into a parallelogram, the diagonal length and the phase of the upper and lower beams are flat. Utilizing visual change. In other words, the amount of expansion and contraction of the hydraulic damper changes according to the change in the length of the diagonal line and the phase of the beam. It is intended to reduce damage and avoid damage / collapse.
[0003]
[Problems to be solved by the invention]
From the viewpoint of aesthetics and ensuring a living space, it is desirable that the above-mentioned vibration control structure fits in a space surrounded by a rectangular wall structure (ie, inside the wall), and many of the methods that are actually known are walls. A hydraulic damper and a member for mounting the damper are accommodated in the interior.
However, especially when a force that deforms the rectangular wall structure is applied in the direction in which the hydraulic damper contracts, if the amount of deformation and its speed are large, the damper mounting member may be twisted before the hydraulic damper contracts and the wall surface There is a possibility of breaking or breaking through the material from the inside. This is an aesthetic problem, and the original purpose of absorbing the energy applied to the structure by the fluid resistance of the oil enclosed in the hydraulic damper and minimizing damage to the structure may not be fulfilled sufficiently. There is sex. That is, in order to maximize the vibration control effect of the hydraulic damper, it is necessary to regulate the operation direction of the hydraulic damper or the damper mounting member so that the hydraulic damper expands and contracts on a plane parallel to the wall surface.
[0004]
[Means for Solving the Problems]
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
[0005]
In claim 1, the upper bracket 5 is attached to the joint between the pillars 1, 2 and the upper beam 3 in a space surrounded by a rectangular structure composed of a pair of left and right pillars 1, 2 and a pair of upper and lower beams 3, 4. · 6 fixedly mounted, fixedly to the lower bracket 7 and 8 at the junction of the pillar 1, 2 and lower beam 4, the damper mounting member 12, constructed from one transmission member 13 and the other transmission member 14 The one transmission member 13 protrudes obliquely downward from the upper bracket 5, the other transmission member 14 protrudes obliquely downward from the upper bracket 6, and the lower ends of both transmission members 13 and 14 are welded or the like. Are joined to each other and formed in a V shape in a side view, and a guide 15 is fixed at the lower end in parallel with the beams 3 and 4, and the guide rail 17 is placed between the lower brackets 7 and 8 in parallel with the guide 15. Further, a damper 21 is arranged in parallel with the guide 15. The damper 21 has the piston rod 22 side fixed to the support member 30 of the lower brackets 7 and 8 and the other end fixed to the guide 15 by the damper fixing member 24 so that the guide rail 17 can slide in the guide 15. It is inserted.
[0006]
According to claim 2, in the residential vibration control structure according to claim 1, the guide rail 17 is constituted by two bar-like members arranged horizontally with a space therebetween, and abuts between the bar-like members, A spacer 19 that is a contact member that restricts deformation of the rod-shaped member is fixed to the guide 15.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the invention will be described.
FIG. 1 is a side view showing a first embodiment of a residential vibration control structure, FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1 of the first embodiment of the residential vibration control structure, and FIG. FIG. 4 is a side view showing another structural example of a residential vibration control structure, and FIG. 5 is a side view showing a second embodiment of the residential vibration control structure.
[0008]
First, the overall configuration in the first embodiment of the residential vibration control structure will be described with reference to FIG.
In the following description, for the sake of convenience, the direction perpendicular to the paper surface of FIG. 1 will be referred to as the “depth direction”.
As shown in FIG. 1, a rectangular structure is formed by horizontally laying and joining an upper beam 3 and a lower beam 4 between a pair of columns 1 and 2, and at the joint between the columns 1 and 2 and the upper beam 3. Upper brackets 5 and 6 are respectively fixed, and lower brackets 7 and 8 are respectively fixed to the joints between the columns 1 and 2 and the lower beam 4.
[0009]
A brace 9 is interposed between the upper bracket 5 and the lower bracket 8 positioned diagonally, and a brace 10 is interposed between the upper bracket 6 and the lower bracket 7. Then, turnbuckles 11 and 11 are screwed in the middle of the braces 9 and 10, and the turnbuckle 11 is configured to be able to adjust the tension of the braces 9 and 10 by rotating the turnbuckle 11. In consideration of strength and the like, either one or both of the braces 9, 10 may be omitted.
[0010]
The damper mounting member 12 includes one transmission member 13 and the other transmission member 14. The transmission member 13 protrudes obliquely downward from the upper bracket 5, and the transmission member 14 protrudes obliquely downward from the upper bracket 6. The lower end portions of the transmission members 13 and 14 are joined to each other by a method such as welding to form a V shape in side view. The shape of the damper mounting member is not limited to this embodiment, and the main point is that the change in the phase in the longitudinal direction of the upper beam 3 (the amount of distortion of the rectangular structure) is reflected in the amount of expansion and contraction of the hydraulic damper described later. What is necessary is just to comprise.
[0011]
As shown in FIG. 2, the guide 15 is a U-shaped member in sectional view, and includes a horizontal portion 15a and side wall portions 15b and 15b. The guide 15 has a side wall portion 15b, 15b protruding downward from the horizontal portion 15a, and the lower end portion of the damper mounting member 12 so that the longitudinal direction of the guide 15 substantially coincides with the longitudinal direction of the upper beam 3 and the lower beam 4. It is fixed. Further, the reinforcing members 16 and 16 are joined to both the guide 15 and the damper mounting member 12 by a method such as welding to reinforce the joint between the guide 15 and the damper mounting member 12.
[0012]
The guide rails 17 and 17 are two round bar-like members arranged substantially parallel to the upper beam 3 and the lower beam 4 with a space in the depth direction, and both ends of the guide rails 17 and 17 are bent obliquely downward to form a lower bracket. Mounted horizontally between 7 and 8. The inner wall surfaces of the side wall portions 15b and 15b of the guide 15 are slidably in contact with the side surfaces of the guide rails 17 and 17. As described above, the guide rails 17 and 17 are disposed inside the guide 15. For this reason, the diameter of the guide 15 can be increased, and the diameters of the transmission member 13 and the transmission member 14 can also be increased within the width of the columns 1 and 2.
Thereby, the rigidity of the transmission members 13 and 14 and the guide 15 in the hydraulic damper sliding direction can be improved. And the transmission efficiency of the vibration to the hydraulic damper 21 can be improved, and the seismic control structure with high seismic control efficiency can be comprised. A bottom plate 18 is fixed to the lower edges of the side wall portions 15b and 15b by a method such as welding or screwing, and the two guide rails 17 and 17 are slid with respect to both guide rails 17 and 17. A spacer 19 that abuts movably is arranged. Since the spacer 19 is disposed between the two guide rails 17 and 17, the clearance between the guide rail 17 and the spacer 19 can be easily adjusted, and the assembly accuracy can be improved. Damper stays 20 and 20 are provided on the bottom surface of the bottom plate 18.
In FIG. 2, the spacer 19 is placed on the bottom plate 18, but may be fixed to the bottom plate 18 or may be fixed to the horizontal portion 15 a of the guide 15. That is, when the guide 15 slides in the longitudinal direction of the beam with respect to the guide rails 17 and 17, even if a force for twisting the guide 15 in the direction of rotating on the horizontal plane is simultaneously applied, the guide rails 17 and 17 are What is necessary is just to be comprised so that it may not be bent (to the direction which compresses the spacer 19).
[0013]
The hydraulic damper 21 includes a piston rod 22, a cylinder 23, a damper fixing member 24, and the like. The damper fixing members 24 and 24 are wound and fixed around the outer periphery of the cylinder 23 and fastened to the damper stay 20 by bolts 25, nuts 26 and washers 27. At this time, the hydraulic damper 21 is fixed to the damper mounting member 12 so that the expansion / contraction direction of the hydraulic damper 21 (that is, the sliding direction of the piston rod 22) substantially coincides with the longitudinal direction of the guide rails 17 and 17. . A piston (not shown) is provided at one end of the piston rod 22 and is inserted into the cylinder 23, and damper oil is sealed in the cylinder 23.
[0014]
As shown in FIG. 3, a connecting portion 31 is fixed to the other end side (the side where no piston is provided) of the piston rod 22. The connecting portion 31 is composed of a connecting base portion 31a and side portions 31b and 31b, and is a U-shaped member in plan view with the side portions 31b and 31b protruding from both left and right ends of the connecting base portion 31a. Holes are formed in the side portions 31b and 31b, and a horizontal bar 28b of the rod support bar 28 is rotatably inserted in the holes. The rod support bar 28 has a cross shape in which a vertical bar 28a and a horizontal bar 28b, which are two round bars, perpendicularly intersect each other at a substantially central portion, and both ends of the vertical bar 28a are provided on a rod support member 29 described later. It is interposed between the base portion 29a and the horizontal portion 29c, and is fixed so that the longitudinal direction of the vertical bar 28a is the vertical direction. The rod fixing member 29 has a substantially “U” shape in a side view, and includes a base portion 29a, a standing portion 29b, a horizontal portion 29c, and a reinforcing rib 29d. The reinforcing rib 29d is joined to both the base portion 29a and the standing portion 29b, and prevents the rod fixing member 29 from being deformed when the hydraulic damper 21 expands and contracts. The base 29a is fixed to the upper surface of the support member 30 protruding from the lower bracket 7 by a method such as welding or bolt fastening. The braces 9 and 10 and the damper mounting member 12 are arranged so as to be shifted in the depth direction so as not to interfere with each other, or a long hole is formed in the middle of the transmission members 13 and 14 constituting the damper mounting member 12. And the braces 9 and 10 are passed through the long holes so as not to interfere with each other.
In this embodiment, the connecting portion 31, the rod support bar 28, and the rod fixing member 29 are used as means for connecting the piston rod 22 and the support member 30. However, the present invention is not limited to this, and a commercially available universal joint or pillow ball is used. For example, the rod fixing member 29 and the piston rod 22 may be connected using each other. The pillow ball is a self-aligning spherical plain bearing that can be loaded simultaneously with a large radial load and an axial load in both directions while being small, and the connecting portion between the rod fixing member 29 and the piston rod 22 can be made compact. is there.
[0015]
Further, as shown in FIG. 2, all members disposed in the space surrounded by the rectangular structure composed of the pillars 1 and 2, the upper beam 3 and the lower beam 4 are from a plane perpendicular to the depth direction of the rectangular structure. It is configured not to protrude.
[0016]
With the above configuration, when the rectangular structure including the columns 1 and 2, the upper beam 3, and the lower beam 4 is deformed in the longitudinal direction of the beam (distorted into a parallelogram shape), the damper mounting member 12 Moves substantially in parallel with the movement of the upper beam 3 and the hydraulic damper 21 expands and contracts. The energy applied to the rectangular structure is absorbed by the fluid resistance of the damper oil sealed in the hydraulic damper 21.
At this time, the guide 15 fixed to the damper mounting member 12 is slidably fitted (externally fitted in this embodiment) to the guide rail 17 that is horizontally mounted and fixed between the columns 1 and 2. Therefore, the amount of phase change of the upper beam 3 and the amount of expansion / contraction of the hydraulic damper 21 are substantially the same. That is, the damper mounting member 12 or the like is not twisted and protrudes in the depth direction from the rectangular structure, and the energy applied to the rectangular structure is efficiently absorbed by the hydraulic damper 21 and the wall material is damaged. There is no. Moreover, since these damping structures (members housed in a space surrounded by the rectangular structure) do not protrude from the rectangular structure, they can be installed without deteriorating aesthetics or losing the living space.
The guide rail 17 is horizontally mounted and fixed between the pillars 1 and 2, and the guide rail 17 itself functions as a reinforcing member for the rectangular structure, and when the guide rails 17 and 17 are fixed, the guide rails 17 and 17 are attached to the pillars 1 and 2. The strength of the pillars 1 and 2 is maintained by fixing them to the lower brackets 7 and 8 without newly drilling holes.
Further, by sandwiching the spacer 19 as a contact member between the guide rails 17 and 17 as two rod-shaped members, the guide rails 17 and 17 are operated even if a force for bending the guide rail 17 in the direction of protruding to the wall surface works. The energy applied to the rectangular structure is efficiently absorbed by the hydraulic damper 21 without bending.
In this embodiment, the guide rails 17 and 17 are constituted by two rod-shaped members. However, the present invention is not limited to this. For example, the guide rails may be externally fitted as rectangular guide rails. Further, the same effect can be obtained by forming a groove on the side of the guide rail that is fixed between the pillars, and fixing a member that is slidable while fitting in the groove to the damper mounting member. Further, regarding the method of attaching the hydraulic damper, the cylinder may be fixed to the column side, and the tip of the pithlon rod may be pivotally attached to the damper attachment member side.
In the present embodiment, the damper mounting member is fixed on the upper beam 3 side. However, on the contrary, the damper mounting member is fixed on the lower beam 4 side, and the upper brackets 5 and 6 are provided with guide rails. The same effect can be achieved by a configuration in which the frame is horizontally mounted and fixed.
[0017]
Furthermore, the same effects as those of the first embodiment can be obtained even if the structure is the same as the other structure example of FIG. 4 or the second embodiment of FIG. In addition, about the other structural example and 2nd Example, what can be comprised with the same member as 1st Example attaches | subjects the same number as what was used in 1st Example.
[0018]
In another configuration example shown in FIG. 4, a damper fixing portion 32 is provided at the lower end of the damper mounting member 12, and a hydraulic damper 33 is provided on the lower surface of the damper fixing portion 32. Alternatively, the damper fixing portion 32 may be omitted, and the hydraulic damper 33 may be fixed to the damper mounting member 12. The hydraulic damper 33 includes a piston rod 34, a piston 35, and a cylinder 36. Both ends of the piston rod 34 are penetrated with both ends penetrating in the axial direction of the cylinder 36, and both ends of the cylinder 36 are the same as in the first embodiment. It is connected to the lower brackets 7 and 8 in the same manner. A piston 35 is provided substantially at the center of the piston rod 34, and can be controlled regardless of whether the upper beam 3 moves left or right in FIG.
4, the piston rod 34 also functions as the guide rail 17 in the first embodiment, the sliding portion of the piston rod 34 and the cylinder 36, and the outer peripheral surface of the piston 35 and the inside of the cylinder 36. The contact portion of the peripheral surface also functions as the guide 15 in the first embodiment. The hydraulic damper 33 is regulated in the left-right direction by the piston rod 34, and the damper mounting member 12 fixed to the hydraulic damper 33 is regulated. Since the guide is configured by the hydraulic damper 33, the vibration control mechanism can be configured in a compact manner. Both ends of the piston rod 34 are configured to be slidable up and down within a certain range.
[0019]
In the second embodiment shown in FIG. 5, a through hole 12a for penetrating the hydraulic damper 21 is formed in the lower part of the damper mounting member 12, and the hydraulic damper 21 is inserted into the through hole 12a. A damper stay 20 is provided to fix the hydraulic damper 21, and the rod bracket 28a, rod fixing member 29, and support member 30 are used for the lower brackets 7a and 8a as in the first embodiment, and the tip of the piston rod 22 is rectangular. Secure to the structure side.
As described above, the configuration in which the hydraulic damper 21 is disposed above the guide 15 also has the same effect as the first embodiment. Then, the space below the guide 15 can be used to increase the length of the damper mounting member 12, and the displacement between the upper beam 3 and the lower beam 4 during vibration can be efficiently transferred to the hydraulic damper 21. Can communicate. However, since the formation of the through hole 12a in the damper mounting member 12 may cause a decrease in strength of the damper mounting member 12, it is desirable to reinforce the damper mounting member 12 using a reinforcing member if necessary.
[0020]
Moreover, in the residential vibration control structure of the present invention, the braces 9 and 10 are disposed together with the vibration control mechanism, and also acts as a bearing wall. The residential vibration control structure of the present invention has a vibration control mechanism disposed in an existing rectangular frame and can be easily replaced with a load bearing wall or the like disposed in an existing house.
Thereby, in the bearing wall arrangement part of the house already constructed | assembled, it is possible to make an existing house easily a damping house by replacing | exchanging the bearing wall and the damping structure for houses of this invention.
[0021]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0022]
That is, as shown in claim 1, in the joint portion between the columns 1 and 2 and the upper beam 3 in a space surrounded by a rectangular structure composed of a pair of left and right columns 1 and 2 and a pair of upper and lower beams 3 and 4. The upper brackets 5 and 6 are fixed, the lower brackets 7 and 8 are fixed to the joints between the columns 1 and 2 and the lower beam 4, and the damper mounting member 12 is connected to one transmission member 13 and the other transmission member 14. The one transmission member 13 protrudes obliquely downward from the upper bracket 5, the other transmission member 14 protrudes obliquely downward from the upper bracket 6, and the lower ends of both transmission members 13, 14 are welded. The guide 15 is fixed in parallel with the beams 3 and 4 at the lower end, and the guide rail is parallel to the guide 15 between the lower brackets 7 and 8. 17 is mounted horizontally, and further, a damper 21 is mounted in parallel with the guide 15. The damper 21 is fixed to the support member 30 of the lower bracket 7, 8 with the piston rod 22 side fixed to the guide 15 by the damper fixing member 24, and the guide rail 17 is slid into the guide 15. Because it is movably inserted, when the rectangular structure consisting of two pillars and upper and lower beams deforms in the longitudinal direction of the beam (distorts into a parallelogram shape), the guide fixed to the damper mounting member Is slidably fitted to the guide rail that is horizontally mounted and fixed between the columns, so that the hydraulic damper expands and contracts according to the movement of the upper beam, but the damper mounting member is twisted etc. It does not protrude in the depth direction from the rectangular structure, energy applied to the rectangular structure is efficiently absorbed by the hydraulic damper, and the wall material is not damaged. Moreover, since these damping structures (members contained in the space surrounded by the rectangular structure) do not protrude from the rectangular structure, they can be installed without deteriorating the aesthetics or losing the living space.
[0023]
According to a second aspect of the present invention, in the residential vibration control structure according to the first aspect, the guide rail 17 is constituted by two bar-like members arranged horizontally with a space therebetween, and abuts between the bar-like members. Since the spacer 19, which is a contact member for restricting deformation of the rod-like member, is fixed to the guide 15, there is no need to make a new hole in the column when fixing the guide rail, and the strength of the column is increased. Retained. Also, the guide rail is horizontally mounted and fixed between the columns, and it itself serves as a reinforcing member for the rectangular structure.
[Brief description of the drawings]
FIG. 1 is a side view of a residential vibration control structure of the present invention.
2 is a cross-sectional view taken along line AA in FIG. 1 of the residential vibration control structure of the present invention.
FIG. 3 is a perspective view of a rod fixing member.
FIG. 4 is a side view showing another configuration example of a residential vibration control structure.
FIG. 5 is a side view showing a second embodiment of a residential vibration control structure.
[Explanation of symbols]
1 and 2 Pillar 3 Upper beam 4 Lower beam 5 and 6 Upper bracket 7 and 8 Lower bracket 9 and 10 Brace 12 Damper mounting member 13 One transmission member 14 The other transmission member 15 Guide 15
17 Guide rail 19 Spacer 21 Hydraulic damper

Claims (2)

Upper part of the joint between the column (1, 2) and the upper beam (3) in a space surrounded by a rectangular structure consisting of a pair of left and right columns (1, 2) and a pair of upper and lower beams (3, 4) bracket (5, 6) fixedly and fixedly lower bracket (7, 8) at the junction of the column (1, 2) and lower beam (4), a damper mounting member (12), the one The transmission member (13) and the other transmission member (14) are configured such that the one transmission member (13) protrudes obliquely downward from the upper bracket (5), and the other transmission member (14) is the upper bracket 6. The lower end portions of both transmission members (13, 14) are joined to each other by welding or the like to form a V-shape in side view, and a guide (15) is placed on the lower end of the beam (3.4). ) In parallel with the guide bracket (15) between the lower brackets (7, 8) in parallel with the guide (15). 7) is mounted horizontally, and a damper (21) is arranged in parallel with the guide (15), and the damper (21) is disposed on the piston rod (22) side on the support member (30) of the lower bracket (7.8). The other end is fixed to the guide (15) by the damper fixing member (24), and the guide rail (17) is slidably inserted into the guide (15). Damping structure.   2. The residential vibration control structure according to claim 1, wherein the guide rail (17) is constituted by two bar-like members arranged horizontally with a space therebetween, and abuts between the bar-like members to deform the bar-like member. A residential vibration control structure characterized in that a spacer (19), which is a contact member for regulating the movement, is fixed to the guide (15).

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