JP6207975B2 - Anti-vibration structure - Google Patents

Description

  The present invention relates to an anti-vibration structure, and more particularly to a technique for preventing sound from being transmitted from an upper floor portion to a lower floor portion of a unit type building.

A conventional unit-type building is obtained by arranging a plurality of building units in the horizontal direction and the vertical direction and connecting these building units.
Moreover, there exists a technique which interposes a rubber elastic body between adjacent building units for the purpose of vibration proof, vibration suppression, or sound proof (refer patent documents 1, 2, and 3).

JP-A-8-302829 JP 2012-207454 A Japanese Patent No. 4002359

When an object falls on the floor of the upper floor of the unit type building, the impact sound of the falling object and the floor is generated, and the impact sound is transmitted from the upper floor to the lower floor. The techniques disclosed in Patent Documents 1 to 3 cannot sufficiently suppress the generation and propagation of such an impact sound.
Therefore, an object of the present invention is to prevent the impact sound from being transmitted from the upper floor to the lower floor of the unit type building.

The invention according to claim 1 for solving the above-described problem is, for example, as shown in FIGS. 1, 2, 3, 7, 11, and 12, a plurality of building units 13, 13, 14, 14. Are arranged between adjacent ceiling beams 13a, 13a of adjacent lower-floor building units 13, 13 in the vibration-proof structures 30, 30A, 30B of the unit building 1 formed by assembling them vertically and horizontally. Between the lower connection bracket 31 fastened to the ceiling beams 13a and 13a and the adjacent floor beams 14b and 14b of the adjacent upper floor building units 14 and 14 assembled on the lower floor building unit 13 respectively. The upper connecting bracket 41 fastened to the floor beams 14b and 14b and between the adjacent ceiling beams 13a and 13a to between the adjacent floor beams 14b and 14b. And the adjacent ceiling beams 13a and 13a are suspended from the adjacent floor beams 14b and 14b by the vibration damping materials 50, 51, 55, and 58, respectively. and,
The lower part of the damping material 50, 51, 55 is fixed to the lower connection bracket 31, and the upper part of the damping material 50, 51, 55 is fixed to the upper connection bracket 41. It is a structure.

According to the first aspect of the present invention, since the upper connection bracket 41 is fastened to the adjacent floor beams 14b, 14b of the adjacent upper floor building units 14, 14, the rigidity of the floor of the upper floor portion is improved. Since the lower connection bracket 31 is fastened to the adjacent ceiling beams 13a, 13a of the adjacent lower floor building units 13, 13, the rigidity of the ceiling of the lower floor is improved. Therefore, even if an impact is given to the floor of the upper floor, the impact sound and vibration are not easily transmitted to the lower floor.
Since the adjacent ceiling beams on the lower floor are suspended from the adjacent floor beams on the upper floor by the vibration damping materials 50, 51, 55, 58, the impact sound and vibration on the upper floor are caused by the vibration damping materials 50, 51, 55. , 58. In particular, compression in the vertical direction of the damping materials 50, 51, 55, and 58 can be suppressed, and reduction of the damping effect by the damping materials 50, 51, 55, and 58 can be suppressed. Therefore, it is difficult for sound to be transmitted from the upper floor to the lower floor.
According to the first aspect of the present invention, since the damping members 50, 51, 55 are fixed to the upper connecting bracket 41 and the lower connecting bracket 31, the impact noise and vibration of the upper floor portion are affected by the damping member 50. , 51, 55. Therefore, it is difficult for sound to be transmitted from the upper floor to the lower floor.
Furthermore, because the connection brackets 31 and 41 are used, the lower connection bracket 31 and the upper connection bracket 41 are fastened to the lower floor building unit 13 and the upper floor building unit 14 respectively, and then the lower floor building unit 13 and the upper floor are adjacent to each other. Since the damping members 50, 51, 55 can be fixed to the lower connection bracket 31 and the upper connection unit 41 before the building unit 14 is connected, workability for constructing a vibration isolation structure is good.

  As for invention which concerns on Claim 2, as shown, for example in FIG.3, FIG.7, FIG.11 and FIG. 12, in the vibration-proof structure of Claim 1, the said damping material 50,51,55,58 is the said The lower connecting bracket 31 and the adjacent ceiling beams 13a, 13a are disposed between the fastening portions and the fastening portions between the upper connecting bracket 41 and the adjacent floor beams 14b, 14b. Anti-vibration structure.

  According to the second aspect of the invention, the damping members 50, 51, 55, and 58 are provided between the lower connection bracket 31 and the fastening position of the ceiling beams 13a and 13a and between the upper connection bracket 41 and the fastening position of the floor beam. Therefore, the vibration damping materials 50, 51, 55, and 58 are easily provided between the adjacent ceiling beams 13a and 13a and between the adjacent floor beams 14b and 14b, and the vibration-proof structure is easy to construct.

The invention according to claim 3, for example, as shown in FIG. 3, a vibration damping structure according to claim 1 or 2, wherein the lower connecting bracket 31, the adjacent ceiling beam 13a, is disposed between 13a The first web 31a and one of the adjacent ceiling beams 13a, 13a extend from the end portion of the first web 31a on the one ceiling beam 13a side in the direction in which the one ceiling beam 13a extends, and the one ceiling beam The first flange 31b fastened to 13a and the direction of the first flange 31b extending from the end of the first web 31a on the other ceiling beam 13a side of the adjacent ceiling beams 13a, 13a A second flange 31c fastened to the other ceiling beam 13a, and the upper connection bracket 41 overlaps the first web 31a when viewed from above or below, The second web 41a disposed between the adjacent floor beams 14b and 14b, and the one of the adjacent floor beams 14b and 14b on the side of the one floor beam 14a disposed on the one ceiling beam 13a. A third flange 41b extending from the end of the second web 41a in the same direction as the extending direction of the first flange 31b and fastened to the one floor beam 14a, and the adjacent floor beams 14b and 14b. It extends in the same direction as the extension direction of the second flange 31c from the end of the second web 41a on the other floor beam side arranged on the other ceiling beam 13a, and is fastened to the other floor beam. A fourth flange 41c, wherein the number of the damping members 50 and 51 is two, and the lower and upper portions of the side surface of one damping member 50 are the first flange 31b and the third flange, respectively. 41b and the other A vibration damping system, characterized in that the lower and upper side of the damping material 51 is fixed to the second flange 31c and the fourth flange 41c, respectively.

According to the invention of claim 3 , since the same side surfaces of the damping members 50 and 51 are fixed to the lower connecting bracket 31 and the upper connecting bracket 41, the damping members 50 and 51 are fixed to the lower connecting bracket 31 and the upper connecting bracket. It is easy to stick to 41, and it is easy to construct a vibration-proof structure.

As for the invention which concerns on Claim 4 , as shown, for example in FIG. 7, in the vibration isolating structure of Claim 1 or 2 , the said lower connection bracket 31 is arrange | positioned between the said adjacent ceiling beams 13a and 13a. The first web 31a and one of the adjacent ceiling beams 13a, 13a extend from the end portion of the first web 31a on the one ceiling beam 13a side in the direction in which the one ceiling beam 13a extends, and the one ceiling beam The first flange 31b fastened to 13a and the direction of the first flange 31b extending from the end of the first web 31a on the other ceiling beam 13a side of the adjacent ceiling beams 13a, 13a A second flange 31c fastened to the other ceiling beam 13a, and the upper connection bracket 41 overlaps the first web 31a when viewed from above or below, The second web 41a disposed between the adjacent floor beams 14b and 14b, and the one of the adjacent floor beams 14b and 14b on the side of the one floor beam 14a disposed on the one ceiling beam 13a. A third flange 41b extending from the end of the second web 41a in the same direction as the extending direction of the second flange 31c and fastened to the one floor beam 14a; It extends in the same direction as the extending direction of the first flange 31b from the end of the second web 41a on the other floor beam side arranged on the other ceiling beam 13a, and is fastened to the other floor beam. A fourth flange 41c, and the number of the damping members 50, 51 is two, of which the lower part of the side surface of one damping member 50 and the upper part of the side surface on the opposite side are respectively The first flange 31b and the fourth flange The vibration damping structure is characterized in that the lower portion of the side surface of the other damping material 51 and the upper portion of the opposite side surface are fixed to the second flange 31c and the third flange 41b, respectively. is there.

According to the invention which concerns on Claim 4 , one damping material 50 is pinched | interposed between the 1st flange 31b and the 4th flange 41c, and the damping material 50 is hard to peel from the 1st flange 31b and the 4th flange 41c. . Further, in the cross-sectional view, since the fixing portion between the damping material 50 and the lower coupling bracket 31 and the upper coupling bracket 41 is located diagonally, the shearing force to the damping material 50 is large, and as a result, the damping material. The work of 50 is also increased. Therefore, the sound attenuation effect by the damping material 50 is high. The same applies to the other damping material 51.

As for the invention which concerns on Claim 5 , as shown, for example in FIG. 11, in the vibration isolating structure of Claim 1 or 2 , the said lower connection bracket 31 is one ceiling beam among the said adjacent ceiling beams 13a and 13a. A first flange 31h fastened to 13a, a second flange 31i facing the first flange 31h and fastened to the other ceiling beam 13a of the adjacent ceiling beams 13a, 13a, and one end portion of the first flange 31h A first web 31g connected to one flange 31h and the other end connected to the second flange 31i, and the upper connecting bracket 41 is one of the adjacent floor beams 14b and 14b. A third flange 41h fastened to one floor beam 14a disposed on the ceiling beam 13a, and the adjacent floor beams 14b and 14b facing the third flange 41h. A fourth flange 41i fastened to the other floor beam disposed on the other ceiling beam 13a, one end portion is connected to the third flange 41h, and the other end portion is connected to the fourth flange 41i. A second web 41g, and a lower portion of the damping material 55 is sandwiched between the first flange 31h and the second flange 31i and fixed to the first flange 31h and the second flange 31i. The vibration damping member 55 is sandwiched between the third flange 41h and the fourth flange 41i and fixed to the third flange 41h and the fourth flange 41i. It is a structure.

According to the fifth aspect of the present invention, one end of the first web 31g is connected to the first flange 31h, and the other end of the second web 41g is connected to the second flange 31i. The rigidity of the ceiling of the lower floor is high. Similarly, the rigidity of the upper connection bracket 41 is high, and the rigidity of the upper floor is high. Therefore, it is difficult to transmit sound from the upper floor to the lower floor.
Further, since the damping material 55 is sandwiched between the first flange 31 h and the second flange 31 i, the damping material 55 is difficult to come off from the lower connection bracket 31. Further, since the damping material 55 is sandwiched between the third flange 41h and the fourth flange 41i, the damping material 55 is difficult to come off from the upper connection bracket 41.

  According to the present invention, even if an impact sound is generated on the floor of the upper floor, it is difficult for the sound to be transmitted from the upper floor to the lower floor of the unit type building.

It is a schematic perspective view of a unit type building. It is a perspective view of four building units adjacent to an up-down direction and a horizontal direction. It is a side view of the vibration isolating structure which concerns on 1st Embodiment of this invention. It is a top view of the vibration isolating structure which concerns on the same embodiment. It is VV sectional drawing of the vibration isolating structure which concerns on the same embodiment. It is a front view of the vibration isolating structure which concerns on the same embodiment. It is a side view of the vibration isolating structure which concerns on 2nd Embodiment of this invention. It is a top view of the vibration isolating structure which concerns on the same embodiment. It is IX-IX sectional drawing of the vibration isolating structure which concerns on the same embodiment. It is a front view of the vibration isolating structure which concerns on the same embodiment. It is a front view of the vibration isolating structure which concerns on 3rd Embodiment of this invention. It is a front view of the vibration isolating structure which concerns on the reference example of this invention.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. However, since the embodiments described below are provided with various technically preferable limitations for carrying out the present invention, the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Absent.

[First Embodiment]
FIG. 1 is a schematic perspective view of a unit type building 1.
This unit building 1 is installed on a foundation 2. The lower floor 3 of the unit type building 1 is composed of a plurality of rectangular parallelepiped building units 13, 13,. These building units 13, 13, ... are arranged on the foundation 2, and these building units 13, 13, ... are connected. The upper floor portion 4 of the unit type building 1 is composed of a plurality of rectangular parallelepiped building units 14, 14,. These building units 14, 14,... Are arranged on the building units 13, 13,... On the lower floor part 3, and these building units 14, 14,. The building units 14, 14,... Are connected to the lower building units 13, 13,. Moreover, the roof part 5 is installed on the building units 14, 14,.
The building units 13, 13,... And the building units 14, 14,... Are transported from the factory to the construction site, and are arranged and combined by a crane or the like.

  FIG. 2 is a perspective view showing building units 13 and 13 adjacent in the horizontal direction and building units 14 and 14 connected on the building units 13 and 13 respectively. As shown in FIG. 2, the building unit 14 includes a plurality (four) of ceiling beams 14a, 14a, 14a, 14a, a plurality (four) of floor beams 14b, 14b, 14b, 14b, and a plurality of (four). ) Pillars 14c, 14c, 14c, 14c. These ceiling beams 14a, 14a, 14a, 14a, floor beams 14b, 14b, 14b, 14b and pillars 14c, 14c, 14c, 14c are framed in a rectangular parallelepiped shape to form a building unit 14. That is, the ceiling beams 14a, 14a, 14a, 14a are assembled in a rectangular frame shape, the floor beams 14b, 14b, 14b, 14b are assembled in a rectangular frame shape, and the upper ends of the columns 14c, 14c, 14c, 14c are the ceiling beams 14a. , 14a, 14a, 14a are connected to the four corners of the rectangular frame, and the lower ends of the columns 14c, 14c, 14c, 14c are connected to the four corners of the rectangular frame made of the floor beams 14b, 14b, 14b, 14b, respectively. Is done. The building unit 13 is also provided in the same manner as the building unit 14, and the building unit 13 is assembled by assembling the ceiling beams 13a, 13a, 13a, 13a, the floor beams 13b, 13b, 13b, 13b and the columns 13c, 13c, 13c, 13c. 13 is built. In addition, the exterior material is attached to the building units 13 and 14 as needed.

  Next, with reference to FIGS. 3 to 6, a vibration isolation structure (vibration isolation connection structure) 30 that connects adjacent building units 13, 13, 14, 14 will be described. 3 is a side view of the vibration isolation structure 30, FIG. 4 is a plan view of the vibration isolation structure 30, and FIG. 5 shows the surface along VV shown in FIG. FIG. 6 is a front view of the vibration isolating structure 30.

  In the unit type building 1, all the sets of four building units 13, 13, 14, 14 adjacent in the vertical and horizontal directions are connected in the same manner, and therefore, the vibration-proof structure 30 at one place will be described. The building units 13, 13,... And the building units 14, 14,... Are adjacent to each other by a main connection structure different from the vibration isolation structure 30, and the vibration isolation structure 30 has the main connection structure. It is auxiliary to reinforce.

  The ceiling beam 13a of the building unit 13 and the ceiling beam 13a of the building unit 13 adjacent to the building unit 13 are arranged so as to be parallel to each other at intervals in the horizontal direction. Similarly, the floor beam 14b of the building unit 14 and the floor beam 14b of the building unit 14 adjacent to the building unit 14 are arranged to be parallel to each other at an interval in the horizontal direction. Ceiling beams 13a and 13a are respectively disposed under the floor beams 14b and 14b, and the ceiling beams 13a and 13a and the floor beams 14b and 14b are parallel to each other.

  A lower connection bracket 31 is sandwiched between adjacent ceiling beams 13a, 13a of adjacent building units 13, 13. The lower connecting bracket 31 is fastened to the side surface of the one ceiling beam 13a by the fastening body 32, and fastened to the other ceiling beam 13a by the fastening body 33. Similarly, an upper connection bracket 41 is sandwiched between adjacent floor beams 14b and 14b of adjacent building units 14 and 14, and the upper connection bracket 41 is fixed to the floor beams 14b and 14b by fastening bodies 42 and 43. Has been. The lower connecting bracket 31 and the upper connecting bracket 41 are aligned at a position along the horizontal plane, and are arranged at intervals in the vertical direction. And the damping materials 50 and 51 are arrange | positioned between the ceiling beams 13a and 13a and between the floor beams 14b and 14b. The damping materials 50 and 51 extend vertically between the ceiling beams 13a and 13a and between the floor beams 14b and 14b, and the lower portions of the damping materials 50 and 51 are fixed to the lower connection bracket 31. , 51 are fixed to the upper connecting bracket 41. The damping materials 50 and 51 are made of damping rubber that is viscoelastically deformed. The damping materials 50 and 51 are not compressed in the vertical direction, and the ceiling beams 13a and 13a are suspended from the floor beams 14b and 14b by the damping materials 50 and 51.

  Next, the connection brackets 31 and 41 will be described in detail. The lower connecting bracket 31 is formed in a Z shape or a shape based on it when viewed from above or below. That is, the lower connection bracket 31 includes the first web 31a, the first flange 31b, and the second flange 31c. The plate-like flanges 31b and 31c are bent with respect to the plate-like web 31a, the flange 31b extends in the vertical direction of the web 31a from the one side of the web 31a, and the flange 31c from the other side of the web 31a. Extending in the opposite direction of the flange 31b, the flanges 31b and 31c are provided in parallel to each other.

  The flange 31b abuts against the side surface of one of the adjacent ceiling beams 13a, 13a, the shaft of the bolt 32a of the fastening body 32 penetrates the flange 31c and the ceiling beam 13a, and the nut 32b of the fastening body 32 Is fastened to the bolt 32a, and the flange 32c is fastened to the side surface of the ceiling beam 13a by the bolt 32a and the nut 32b. Similarly, the flange 31c is fastened to the side surface of the other ceiling beam 13a by the bolt 33a and the nut 33b of the fastening body 33. A hole 31d formed in the flange 31b is a hole through which the bolt 32a is passed, and a hole 31e formed in the flange 31c is a hole through which the bolt 33a is passed.

  The upper connecting bracket 41 is formed in the same manner as the lower connecting bracket 31, and the upper connecting bracket 41 is similar to the lower connecting bracket 31 in the web (second web) 41a, the flange (third flange) 41b, and the flange (fourth flange) 41c. Have The flange 41b is fastened to the side surface of one floor beam 14b by the bolt 42a and the nut 42b of the fastening body 42, and the flange 41c is fastened to the side surface of the other floor beam 14b by the bolt 43a and the nut 43b of the fastening body 43. Yes. The holes 41d and 41e are holes through which the bolts 42a and 43a are passed, respectively.

In a state where the lower connection bracket 31 is fixed to the adjacent ceiling beams 13a and 13a, the web 31a is perpendicular to the longitudinal direction of the ceiling beams 13a and 13a. The flange 31b extends from one end of the web 31a in the extending direction of the ceiling beam 13a, and the flange 31c extends from the other end of the web 31b in the direction opposite to the extending direction of the flange 31b.
The web 41a of the upper connection bracket 41 is also perpendicular to the longitudinal direction of the floor beams 14b and 14b. When viewed from above or below, the lower connection bracket 31 and the upper connection bracket 41 overlap, the web 31a and the web 41a overlap, the flange 31b and the flange 41b overlap, and the flange 31c and the flange 41c overlap. That is, the direction in which the flange 31b extends from one end of the web 31a and the direction in which the flange 41b extends from one end of the web 41a are the same. The direction in which the flange 31c extends from the other end of the web 31a is the same as the direction in which the flange 41c extends from the other end of the web 41a.

Next, the fixing location of the vibration damping materials 50 and 51 will be described in detail. The damping material 50 is fixed to the flanges 31b and 41b by adhesion or welding. Specifically, the lower part of the side surface of the damping material 50 is fixed to the flange 31b, the upper part of the same side surface is fixed to the flange 41b, and the damping material 50 is disposed between the hole 41d and the hole 31d. .
Similarly, the damping material 51 is fixed to the flanges 31c and 41c between the hole 41e and the hole 31e.

Subsequently, a method for connecting the building units 13, 13, 14, 14 using the vibration isolation structure 30 will be described, and a method for manufacturing the unit building 1 will be described.
First, the building unit 13 is installed on the foundation 2 (hereinafter referred to as procedure A).
Next, the building unit 14 is arranged on the building unit 13, and the building unit 14 and the building unit 13 are connected by a main connection structure (hereinafter referred to as procedure B). At this time, the main connection structure is temporarily tightened rather than permanently tightened to the building units 13 and 14.

Next, the lower connection bracket 31 is temporarily tightened to the ceiling beam 13a of the building unit 13 installed on the foundation 2 (hereinafter referred to as procedure C). That is, the flange 31b of the lower connection bracket 31 is brought into contact with the side surface of the ceiling beam 13a, and the bolt 32a is passed through the hole 31d of the flange 31b, thereby passing the bolt 32a through the flange 31b and the side surface of the ceiling beam 13a. The nut 32b is temporarily tightened to the bolt 32a.
Similarly, the upper connection bracket 41 is temporarily fastened to the floor beam 14b of the building unit 14 connected on the building unit 13 by the fastening body 42 (hereinafter referred to as procedure D).
Next, the damping material 50 is disposed between the fastening body 32 and the fastening body 42, and the lower portion of the side surface of the damping material 50 is fixed to the flange 31b, and the upper portion of the same side surface is fixed to the flange 41b (hereinafter referred to as the lower side). , Procedure E). An example of fixing is adhesion or welding.
Similarly, the damping material 51 is fixed to the flanges 31c and 41c (hereinafter referred to as procedure F).
Next, the next building unit 13 is installed next to the building unit 13 installed on the foundation 2 (which is also on the foundation 2), and the adjacent building units 13 and 13 are connected by the main connection structure. Connect (hereinafter referred to as procedure G). At this time, the main connection structure is temporarily tightened rather than permanently tightened to the building units 13 and 13.
Next, the next building unit 14 is arranged on the building unit 13 installed in the procedure G, and the building units 13 and 14 are connected in a temporarily tightened state by the main connection structure, and adjacent building units 14 and 14 are connected. 14 are connected in a temporarily tightened state by the main connection structure (hereinafter referred to as procedure H).
Next, the flange 31c of the lower connection bracket 31 is temporarily tightened to the side surface of the ceiling beam 13a of the building unit 13 installed in the procedure G by the fastening body 33 (hereinafter referred to as procedure I).
Similarly, the flange 41c of the upper connecting bracket 41 is temporarily fastened to the side surface of the floor beam 13b of the building unit 14 installed in the procedure H by the fastening body 43 (hereinafter referred to as procedure J).

Thereafter, by repeating Step C to Step J, the building units 13, 13, ... are arranged on the foundation 2, the building units 14, 14, ... are arranged on the building units 13, 13, ..., and further adjacent buildings. The units 13, 13, 14, and 14 are connected with the vibration-proof structure 30 in a temporarily tightened state.
Thereafter, the main connection structures are finally tightened, and the nuts 32b, 33b, 42b, 43b of the fastening bodies 32, 33, 42, 43 of the vibration isolation structures 30 are finally tightened.

  According to the embodiment of the present invention, the following operational effects can be obtained.

(1) Since the floor beams 14b and 14b of the adjacent building units 14 and 14 on the upper floor 4 are connected by the upper connection bracket 41, the rigidity of the floor of the upper floor 4 is increased. Therefore, the sound insulation from the upper floor 4 to the lower floor 3 is enhanced. For example, even when an impact is applied to the floor of the upper floor part 4, it is difficult for the impact sound and vibration to be transmitted to the lower floor part 3.

(2) Since the ceiling beams 13a and 13a of the adjacent building units 13 and 13 of the lower floor 3 are connected by the lower connection bracket 31, the rigidity of the ceiling of the lower floor 3 is increased. Therefore, the sound insulation from the upper floor 4 to the lower floor 3 is enhanced.

(3) Since the upper connecting bracket 41 and the lower connecting bracket 31 are connected by the damping members 50 and 51, the vibration is attenuated by the viscoelastic deformation of the damping members 50 and 51, and the vibration energy is reduced to the damping member 50. , 51. As a result, the sound insulation from the upper floor 4 to the lower floor 3 is enhanced. In particular, since the damping materials 50 and 51 are not compressed in the vertical direction, it is possible to suppress a reduction in the vibration damping effect caused by the damping materials 50 and 51.

(4) Since the ceiling beam 13a of the lower floor 3 is suspended from the floor beam 14b of the upper floor 4 by the connecting brackets 31 and 41 and the damping materials 50 and 51, the mass of the floor of the upper floor 4 Increases, making it difficult for the floor of the upper floor part 4 to vibrate. As a result, the sound insulation from the upper floor 4 to the lower floor 3 is enhanced.

(5) Since the fastening body 42 is on the damping material 50 and the fastening body 32 is below the damping material 50, the damping material 50 can be easily fixed to the connection brackets 31, 41, and Easy to install. The same applies to the damping material 50.

(6) Since the damping materials 50 and 51 are fixed to the connection brackets 31 and 41, the adjacent building units 13, 13, 14, and 14 are easily connected by the vibration isolation structure 30. In other words, if the connecting brackets 31 and 41 are not provided, the adjacent building units 13, 13, 14, and 14 are temporarily assembled, and the damping members 50 and 51 are placed between the ceiling beams 13 a and 13 a and the floor beam 14 b. , 14b and these damping materials 50, 51 must be fixed to the ceiling beams 13a, 13a and the floor beams 14b, 14b. On the other hand, in the present embodiment, the connection brackets 31 and 41 are used so that the connection brackets 31 and 41 are fastened to the building units 13 and 14 and then the next building units 13 and 14 are temporarily assembled. Since the vibration members 50 and 51 can be fixed to the connection brackets 31 and 41, the workability is good.

(7) Since the same side surfaces of the damping members 50 and 51 are fixed to the connecting brackets 31 and 41, the damping members 50 and 51 are easily fixed to the connecting brackets 31 and 41, and the construction of the damping structure 30 is easy to perform. .

[Second Embodiment]
7 is a side view of the vibration isolating structure 30A according to the second embodiment of the present invention, FIG. 8 is a plan view of the vibration isolating structure 30A, and FIG. 9 is a plane along IX-IX shown in FIG. FIG. 10 is a cross-sectional view viewed in the direction of the arrow, and FIG. The same code | symbol is attached | subjected to the part which mutually respond | corresponds between the vibration-proof structure 30A of 2nd Embodiment, and the vibration-proof structure 30 of 1st Embodiment. In the case where the mutually corresponding portions are identically provided between the vibration isolating structure 30A of the second embodiment and the vibration isolating structure 30 of the first embodiment, the description thereof is omitted as much as possible. . Below, the part which is different between the vibration isolating structure 30A of 2nd Embodiment and the vibration isolating structure 30 of 1st Embodiment is mainly demonstrated.

  In the vibration isolating structure 30 of the first embodiment, the lower connection bracket 31 and the upper connection bracket 41 overlap each other when viewed from above or below. On the other hand, in the vibration isolating structure 30A of the second embodiment, the lower connecting bracket 31 and the upper connecting bracket 41 do not overlap each other when viewed from above or below.

  More specifically, the web 31a and the web 41a overlap each other when viewed from above or below, but the flange 31b and the flange 41b are displaced along the ceiling beams 13a and 13a and the floor beams 14b and 14b. The flange 41c is also displaced along the ceiling beams 13a and 13a and the floor beams 14b and 14b. That is, the direction in which the flange 31b extends from one end of the web 31a is opposite to the direction in which the flange 41b extends from one end of the web 41a. The direction in which the flange 31c extends from the other end of the web 31a is opposite to the direction in which the flange 41c extends from the other end of the web 41a.

  When viewed from the side, the flange 41c is disposed on the flange 31c, and the flange 41c is disposed on the flange 31b. And the damping material 51 extends up and down from the flange 31c to the flange 41b, the lower part of the side surface of the damping material 51 is fixed (for example, adhesion or welding) to the flange 31c, and the upper part of the opposite side surface is the flange 41b. (For example, adhesion or welding). Further, the damping material 50 extends vertically from the flange 31b to the flange 41c, the lower part of the side surface of the damping material 50 is fixed to the flange 31b, and the upper part of the opposite side surface is fixed to the flange 41c.

The second embodiment also has the same operational effects as the first embodiment. In addition, since the damping material 51 is sandwiched between the flange 31c and the flange 41b when viewed from above or below, it is difficult for the damping material 51 to be peeled off from the flanges 31c and 41b. High attenuation effect. In particular, as shown in FIG. 10, since the vibration damping member 51 and the upper connection bracket 41 and the lower connection bracket 31 are fixedly positioned at diagonal positions with respect to the center of gravity of the vibration damping material 51, The force is large, and as a result, the function of the damping material 51 is increased, so that the sound damping effect by the damping material 51 is high.
The same applies to the damping material 50.

[Third Embodiment]
FIG. 11 is a front view of a vibration isolating structure 30B according to the third embodiment of the present invention. The same code | symbol is attached | subjected to the part mutually corresponding between the anti-vibration structure 30B of 3rd Embodiment, and the anti-vibration structure 30 of 1st Embodiment. In the case where the parts corresponding to each other are identically provided between the vibration isolating structure 30B of the third embodiment and the vibration isolating structure 30 of the first embodiment, the description thereof is omitted as much as possible. . Below, the part which is different between the anti-vibration structure 30B of 3rd Embodiment and the anti-vibration structure 30 of 1st Embodiment is mainly demonstrated.

  In the first embodiment, the connection brackets 31 and 41 are formed in a Z shape or a shape based on it when viewed from above or below. On the other hand, in the third embodiment, the connection brackets 31 and 41 are formed in an H shape when viewed in the extending direction of the ceiling beam 14a and the floor beam 13b.

  Specifically, the lower connection bracket 31 includes a web 31g, a flange 31h, and a flange 31i. A plate-like flange 31h is provided on one side of the plate-like web 31b, and a plate-like flange 31i is provided on the other side of the web 31b. The web 31g, the flange 31h and the flange 31i are integrated. It has become. The web 31b is provided in a state where it is raised with respect to the flange 31h at the center in the width direction of the flange 31h. Yes. Further, the flange 31h and the flange 31i face each other. Similarly to the lower connection bracket 31, the upper connection bracket 41 is also formed in an H shape by a web 41g, a flange 41h, and a flange 41i.

  In a state where the web 31g of the lower connecting bracket 31 is substantially horizontal, the lower connecting bracket 31 is sandwiched between the adjacent ceiling beams 13a, 13a of the adjacent building units 13, 13. The flange 31h is in contact with the side surface of the one ceiling beam 13a, and the flange 31h is fastened to the one ceiling beam 13a by a fastening body 35 including a bolt 35a and a nut 35b. The flange 31i contacts the side surface of the other ceiling beam 13a, and the flange 31i is fastened to the other ceiling beam 13a by a fastening body 36 including a bolt 36a and a nut 36b. Fasteners 35, 36 are under web 31g.

  Similarly, with respect to the upper connection bracket 41, the flange 41h is fastened to the one floor beam 14 by the fastening body 45 including the bolt 45a and the nut 45b, and the flange 41i is connected to the other floor beam by the fastening body 46 including the bolt 46a and the nut 46b. 14b is fastened.

  A damping material 55 made of damping rubber extends vertically between the flanges 31h and 31i and between the flanges 41h and 41i. The lower part of one side surface of the damping material 55 is fixed to the flange 31h, and the upper part of the side surface is fixed to the flange 41h. The lower part of the other side surface of the damping material 55 is fixed to the flange 31i, and the upper part of the side surface is fixed to the flange 41i. The damping material 55 is not compressed in the vertical direction, and the ceiling beams 13 a and 13 a are suspended from the floor beams 14 b and 14 b by the damping material 55.

The third embodiment also has the same operational effects as the first embodiment. In addition, since the damping material 55 is sandwiched between the flanges 31h and 31i and between the flanges 41h and 41i, the damping material 55 is unlikely to come off the connection brackets 31 and 41.
Further, since the connecting brackets 31 and 41 are H-shaped, the rigidity of the connecting brackets 31 and 41 is high, and accordingly, the rigidity of the floor of the upper floor part 4 is increased, and the upper floor part 4 to the lower floor part 3 is increased. Increases sound insulation.

[ Reference example ]
FIG. 12 is a front view of a vibration isolating structure 30D according to a reference example of the present invention. The same code | symbol is attached | subjected to the part which mutually respond | corresponds between the vibration isolating structure 30D of a reference example, and the vibration isolating structure 30 of 1st Embodiment. In the case where the parts corresponding to each other are identically provided between the anti-vibration structure 30D of the reference example and the anti-vibration structure 30 of the first embodiment, description thereof will be omitted as much as possible. Below, the part which is different between the anti-vibration structure 30D of a reference example and the anti-vibration structure 30 of 1st Embodiment is mainly demonstrated.

In the first embodiment, the vertical lengths (heights) of the connecting brackets 31 and 41 are equal to or approximate to the vertical lengths (heights) of the beams 13a and 14b. On the other hand, in the reference example , the connecting brackets 31 and 41 have a shorter vertical length (height) than the beams 13a and 14b. The lower connection bracket 31 is close to the lower ends of the adjacent ceiling beams 13a and 13a, and the upper connection bracket 41 is close to the upper ends of the adjacent floor beams 13b and 13b. The fastening of the lower connection bracket 31 and the ceiling beams 13a, 13a is the same as in the first embodiment, and the fastening of the floor beams 13b, 13b adjacent to the upper connection bracket 41 is also the same as in the first embodiment.

In the first embodiment, the damping members 50 and 51 are fixed to the connection brackets 31 and 41. On the other hand, in the reference example , the damping material 58 made of damping rubber is fixed (for example, bonded or welded) to the joining plates 61 and 62 while being sandwiched between the joining plates 61 and 62. Hereinafter, the damping material 58 and the joining plates 61 and 62 will be described in detail.

  The side surface of the damping material 58 is fixed to the first bonding plate 61, and the opposite side surface is fixed to the second bonding plate 62. The first joining plate 61 extends downward from the lower end of the damping material 58, and the extending portion is fastened to the side surface of the one ceiling beam 13 a by the fastening body 38. The second joining plate 62 extends upward from the upper end of the damping material 58, and the extending portion is fastened to the side surface of the floor beam 14 b by the fastening body 48. The fastening location of the fastening body 38 is above the fastening location of the fastening body 33, and the fastening location of the fastening body 48 is below the fastening location of the fastening body 42. Here, reference numerals 38a and 48a are bolts of the fastening bodies 38 and 48, and reference numerals 38b and 48b are nuts of the fastening bodies 38 and 48.

  The first joint plate 61 protrudes upward from the upper ends of the ceiling beams 13a and 13a, and the upper portion of the first joint plate 61 is the floor beam 14b (the floor beam 14b is the ceiling beam 13 to which the first joint plate 61 is fastened). It is placed on the side of The second joint plate 62 projects upward from the lower ends of the floor beams 14b, 14b, and the lower portion of the second joint plate 62 is the ceiling beam 13a (the ceiling beam 13a to which the first joint plate 61 is fastened). Next to each other). A damping material 58 is provided between the ceiling beams 13a and 13a and the floor beams 14b and 14b. The damping material 58 is not compressed in the vertical direction, and the ceiling beams 13a and 13a are suspended from the floor beams 14b and 14b by the damping material 58. The vertical length of the damping material 58 is shorter than the sum of the vertical lengths of the beams 13a and 14b, and is shorter than the vertical length of each of the beams 13a and 14b.

In this reference example, the same effects as the first embodiment. In addition, the damping material 58 is disposed in the upper part of the gap between the ceiling beams 13a and 13a, and the damping material 58 is disposed in the lower part of the gap between the floor beams 14b and 14b. The vibration member 58 can be reduced in size.

1 Unit type building 3 Lower floor 4 Upper floor 13 Building unit (lower floor building unit)
14 Building unit (upper building unit)
30, 30A, 30B Anti-vibration structure 31 Lower connection bracket 31a Web (first web)
31b Flange (first flange)
31c Flange (second flange)
31g web (first web)
31h Flange (first flange)
31i flange (second flange)
41 Upper connection bracket 41a Web (second web)
41b Flange (third flange)
41c flange (fourth flange)
41g web (second web)
41h Flange (third flange)
41i flange (fourth flange)
50, 51 Damping material 55 Damping material

Claims (5)

In the anti-vibration structure of a unit type building formed by assembling a plurality of building units vertically and horizontally,
A lower connecting bracket disposed between adjacent ceiling beams of adjacent lower floor building units and fastened to these ceiling beams;
Upper connecting brackets arranged between adjacent floor beams of adjacent upper floor building units assembled on each of the upper floor building units, and fastened to these floor beams;
A damping material provided from between the adjacent ceiling beams to between the adjacent floor beams,
Are suspended in floor beams adjacent said adjacent roof beams by the damping material,
The lower part of the damping material is fixed to the lower connection bracket, and the upper part of the damping material is fixed to the upper connection bracket,
Anti-vibration structure characterized by that. In the vibration-proof structure according to claim 1,
The damping material is disposed between a fastening point between the lower connection bracket and the adjacent ceiling beam, and a fastening point between the upper connection bracket and the adjacent floor beam,
Anti-vibration structure characterized by that. The vibration-proof structure according to claim 1 or 2 ,
The lower connecting bracket is
A first web disposed between the adjacent ceiling beams;
A first flange that extends in an extending direction of the one ceiling beam from an end of the first web on the one of the adjacent ceiling beams, and is fastened to the one ceiling beam;
A second flange extending from the end of the first web on the other ceiling beam side of the adjacent ceiling beams in a direction opposite to the extending direction of the first flange, and fastened to the other ceiling beam; ,
Have
The upper connecting bracket is
A second web that overlaps with the first web as viewed from above or below and is disposed between the adjacent floor beams;
Of the adjacent floor beams, one end of the second web arranged on the one ceiling beam extends in the same direction as the first flange extending direction, A third flange fastened to the floor beam;
Of the adjacent floor beams, the other floor beam arranged on the other ceiling beam extends from the end of the second web in the same direction as the extending direction of the second flange. A fourth flange fastened to the floor beam;
Have
The number of the damping materials is 2, the lower part and the upper part of the side surface of one damping material are fixed to the first flange and the third flange, respectively, and the lower part and the upper part of the side surface of the other damping material are respectively Fixed to the second flange and the fourth flange;
Anti-vibration structure characterized by that. The vibration-proof structure according to claim 1 or 2 ,
The lower connecting bracket is
A first web disposed between the adjacent ceiling beams;
A first flange that extends in an extending direction of the one ceiling beam from an end of the first web on the one of the adjacent ceiling beams, and is fastened to the one ceiling beam;
A second flange extending from the end of the first web on the other ceiling beam side of the adjacent ceiling beams in a direction opposite to the extending direction of the first flange, and fastened to the other ceiling beam; ,
Have
The upper connecting bracket is
A second web that overlaps with the first web as viewed from above or below and is disposed between the adjacent floor beams;
The one of the adjacent floor beams is extended in the same direction as the extending direction of the second flange from the end of the second web on one floor beam arranged on the one ceiling beam. A third flange fastened to the floor beam;
Of the adjacent floor beams, the other floor beam arranged on the other ceiling beam extends from the end of the second web in the same direction as the extending direction of the first flange. A fourth flange fastened to the floor beam;
Have
The number of the damping materials is two, and the lower portion of the side surface of one damping material and the upper portion of the side surface on the opposite side are fixed to the first flange and the fourth flange, respectively, A lower portion of the side surface of the material and an upper portion of the opposite side surface are fixed to the second flange and the third flange, respectively;
Anti-vibration structure characterized by that. The vibration-proof structure according to claim 1 or 2 ,
The lower connecting bracket is
A first flange fastened to one of the adjacent ceiling beams;
A second flange facing the first flange and fastened to the other ceiling beam among the adjacent ceiling beams;
A first web having one end connected to the first flange and the other end connected to the second flange;
Have
The upper connecting bracket is
A third flange fastened to one floor beam disposed on the one ceiling beam among the adjacent floor beams;
A fourth flange fastened to the other floor beam arranged on the other ceiling beam among the adjacent floor beams, facing the third flange;
A second web having one end connected to the third flange and the other end connected to the fourth flange;
Have
The lower part of the damping material is sandwiched between the first flange and the second flange, and is fixed to the first flange and the second flange,
The upper part of the damping material is sandwiched between the third flange and the fourth flange, and is fixed to the third flange and the fourth flange.
Anti-vibration structure characterized by that.

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