JP2007120019A - Vibration control structure of building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control structure of a building, which can bring about a sufficient vibration control effect irrespective of the size of a gap made between the skeleton and exterior wall panel of the building. <P>SOLUTION: In this vibration control structure of the building, a first exterior-wall panel (exterior-wall panel) 7 is connected to a floor beam 11, a ceiling beam 12, a stud 13 and the like, which are constructed as the skeleton of a house (building) 1, via a vibration control member (vibration control means) 20. In the vibration control member 20, a mounting part 21a at one end is fixed to an inside with respect to an outside surface 13a of the stud 13, and a metallic plate part 23 at the other end is protruded to an outside with respect to an outside surface 13a of the stud 13. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a building damping structure that suppresses vibration generated in a building frame to which an outer wall panel is connected.

  Conventionally, a damping building in which damping tape is interposed between a ceiling beam and an outer wall panel and between a floor beam and an outer wall panel is known (for example, see Patent Document 1).

In this damping building, when a relative displacement occurs between the outer wall panel, the ceiling beam, and the floor beam at the time of the earthquake, the damping tape is elastically deformed to exhibit a damping effect.
Japanese Patent Laid-Open No. 2001-323865

  By the way, in the above-mentioned vibration control building, one surface of the vibration control tape is fixed to the outer surface of the ceiling beam or the floor beam, and the back surface of the outer wall panel is fixed to the other surface of the vibration control tape.

  That is, the damping tape is provided outside the ceiling beam and the floor beam, and is disposed in a gap generated between the ceiling beam and the outer wall panel.

  Therefore, when this gap is narrow, it is difficult to ensure a sufficient thickness of the damping tape, and there is a possibility that a sufficient damping effect cannot be obtained.

  Therefore, an object of the present invention is to provide a building damping structure that can obtain a sufficient damping effect regardless of the size of the gap formed between the building frame and the outer wall panel.

  In order to solve the above-described problem, a building damping structure according to the invention described in claim 1 is a building damping system in which an outer wall panel is connected to a building frame such as a column, a beam, or a load-bearing wall via damping means. In the vibration structure, the damping means is characterized in that one end is fixed inside the outer surface of the casing and the other end protrudes outside the outer surface of the casing.

  According to a second aspect of the present invention, in the building vibration damping structure according to the first aspect, the vibration damping means is fixed to a pillar extending in the vertical direction at the one end.

  The invention according to claim 3 is the building damping structure according to claim 1, wherein the damping means is fixed to a beam extending in the horizontal direction at the one end.

  According to a fourth aspect of the present invention, in the building vibration damping structure according to any one of the first to third aspects, the vibration damping means has an elastic portion made of high damping rubber or viscoelastic rubber. It is said.

  According to a fifth aspect of the present invention, in the building damping structure according to the fourth aspect, the damping means includes the elastic portion and the metal plate portion, and the metal plate portion and the elastic portion are laminated. It is characterized by being formed.

  According to the invention of claim 1 of the present application, since one end of the vibration damping means is fixed to the inner side of the outer side surface of the building housing, the vibration damping device enters the inside of the housing and is sufficiently large. The thickness (thickness) can be secured.

  This makes it possible to obtain a sufficient vibration damping effect regardless of the size of the gap generated between the building frame and the outer wall panel.

  In addition, since the vibration is transmitted to the damping means using the surface rigidity of the outer wall panel, the rigidity of the housing can be reduced, and the cross-sectional areas of columns, beams, and the like can be reduced.

  According to the second aspect of the present invention, in addition to the effect of the first aspect, it is possible to reliably transmit the shear deformation caused by the vibration generated between the column and the outer wall panel to the vibration damping means to obtain the vibration damping effect.

  According to the third aspect of the present invention, in addition to the effect of the first aspect, it is possible to reliably transmit the shear deformation caused by the vibration generated between the beam and the outer wall panel to the vibration damping means, thereby obtaining the vibration damping effect.

  According to the invention of claim 4 of the present application, in addition to the effects of claims 1 to 3, the rigidity (fixedness) and damping force of the damping means can be easily adjusted, and the rigidity and damping force of the entire building Can be designed to a desired size.

  According to the invention of claim 5 of the present application, in addition to the effect of claim 4, the rigidity and the like of the vibration damping means can be further easily adjusted, and the vibration damping means can be firmly and easily attached to the building frame or the outer wall panel. Can be fixed to.

  Next, a building vibration control structure of the best mode for carrying out the present invention will be described with reference to the drawings.

In FIG. 1, in a house 1 which is a two-story building, a first floor 3 is provided on a foundation 2 provided so as to protrude from the ground, and a second floor 4 is provided thereon. A partition wall 5 is provided between the first floor 3 and the second floor 4, and a roof 6 is provided on the second floor 4. The partition wall 5 has a ceiling (not shown) of the first floor portion 3 and a floor (not shown) of the second floor portion 4.
Between the foundation 2 of the first floor portion 3 and the partition wall 5, a first outer wall panel 7 which is an outer wall panel used for damping and second outer wall panels 8 and 8a which are outer wall panels not used for damping. And a plurality of each are provided.

  Further, a sash window 9a is provided at a position where the first and second outer wall panels 7, 8, 8a are not provided. In addition, the sash window 9a is provided in the opening part 9 mentioned later formed by the housing of the house 1, specifically, the shaft assembly itself.

 Further, between the partition wall 5 and the roof 6 of the second floor portion 4, an outer wall panel (not shown) similar to the second outer wall panels 8 and 8 a (outer wall panels not used for vibration suppression) provided on the first floor portion 3. ) Only.

 Here, as shown in FIG. 2, a second outer wall panel 8 a having an L-shaped cross section is formed at the corner portion of the house 1 along the X direction of the first floor 3 of the house 1 and on the lower side of the drawing. 8a is provided. Between the second outer wall panels 8a and 8a, the first outer wall panel 7, the sash window 9a, the first outer wall panel 7, the second outer wall panel 8, the first outer wall panel 7, the sash window 9a, and the first outer wall panel. 7 are arranged in order.

 The first outer wall panel 7, the second outer wall panel 8 (8 a), and the sash window 9 a are also provided at predetermined positions along the X direction and the Y direction of the house 1 on the outside portion of the house 1 other than the above. ing.

  In addition, between the 1st outer wall panel 7 and the 2nd outer wall panels 8 and 8a, between the 1st outer wall panel 7 and the sash window 9a, between the 2nd outer wall panel 8 and the sash window 9a, a 2nd outer wall panel A gap K (see FIG. 3) is formed between the second outer wall panel 8 and the adjacent second outer wall panel 8. A gasket (not shown) is fitted and fixed in the gap K so that rain does not blow in from the gap K and the appearance of the house 1 does not deteriorate.

  Further, this gasket is formed of a flexible synthetic resin, so that the rotational movement is not hindered even when the first outer wall panel 7 is rotated by vibration as will be described later. .

  As shown in FIG. 3, the first floor 3 in FIG. 2 is provided with a floor beam 11 and a ceiling beam 12 extending in the horizontal direction along the X direction or the Y direction. The floor beam 11 and the ceiling beam 12 are supported so as to be parallel to each other by a post (not shown). Further, between the pillars, a plurality of pillars 13 extending in the vertical direction are erected between the floor beam 11 and the ceiling beam 12.

  The frame of the house 1 is constituted by the floor beam 11, the ceiling beam 12, the stud 13, and a post (not shown).

  The floor beam 11 is fixed to the foundation 2 with a bolt or the like (not shown), and the ceiling beam 12 is fixed to the partition wall 5 with a bolt or the like (not shown). The stud 13 is fixed so as to be perpendicular to the longitudinal direction of the floor beam 11 and the ceiling beam 12 and to connect the floor beam 11 and the ceiling beam 12. Moreover, the support | pillar which is not shown in figure is provided inside the 2nd outer wall panel 8a.

  Here, as shown in FIG. 4, the floor beams 11, the ceiling beams 12, and the studs 13 are connected so that the outer surfaces 11 a, 12 a, 13 a facing the outside of the house 1 are flush with each other, By this connection, an opening 9 (see FIG. 3) surrounded by the floor beam 11, the ceiling beam 12, and the stud 13 is formed.

  The first outer wall panel 7 is connected to the housing of the house 1 via a plurality of damping members (damping means) 20 and a pair of bolts 14.

  As shown in FIG. 3, the first outer wall panel 7 has a rectangular shape when viewed from the front. The lower edge portion overlaps a part of the floor beam 11, and the upper edge portion overlaps a part of the ceiling beam 12. The both side edge portions are arranged at positions overlapping with a part of the intermediate pillars 13 and 13 located on both sides, respectively.

  One end of each of the plurality of damping members 20 is fixed in the vicinity of the upper end portion or the lower end portion of the stud 13, and the other end is fixed in the vicinity of the four corners of the first outer wall panel 7.

  As shown in FIGS. 5A and 5B, each vibration damping member 20 includes a bracket portion 21 in which an attachment portion 21 a and a support portion 21 b are substantially orthogonal to each other and have an L-shaped cross section, and the bracket portion 21. The elastic portion 22 has one surface bonded and fixed to the support portion 21b, and the metal plate portion 23 bonded and fixed to the other surface of the elastic portion 22.

  The bracket portion 21 is formed by bending a steel plate, and the mounting portion 21a is fixed to the side surface 13b covered with the first outer wall panel 7 of the intermediate pillar 13 with screws (see FIG. 5A). .

  At this time, the bracket portion 21 is configured such that the support portion 21b is parallel to the outer surface 13a of the intermediate column 13, and the outer surface 21bA of the support portion 21b is positioned on the inner side of the outer surface 13a of the intermediate column 13. It is attached (see FIG. 4).

  The elastic part 22 is made of high damping rubber or viscoelastic rubber and has a cylindrical shape. Further, as shown in FIG. 5 (b), it is bonded and fixed to substantially the center of the support portion 21 b and the metal plate portion 23.

  As shown in FIG. 4, the elastic portion 22 has a thickness that is substantially flush with the outer side surface 13 a of the stud 13 when bonded and fixed to the support portion 21 b.

  The metal plate portion 23 is a rectangular steel plate having substantially the same size as the support portion 21b, and is fixed to the first outer wall panel 7 by a bolt (not shown).

  Since the metal plate portion 23 is bonded and fixed to the elastic portion 22 that is substantially flush with the outer surface 13a of the intermediate column 13 when bonded and fixed to the support portion 21b, the metal plate portion 23 is outside the outer surface 13a of the intermediate column 13. (See FIG. 4).

  Further, the pair of bolts 14 are attached to substantially the center of the vibration damping member 20 positioned above and below, and pass through the first outer wall panel 7 and the intermediate pillar 13 (see FIG. 4).

  Here, through holes (not shown) are formed in the first outer wall panel 7 and the intermediary pillars 13 at positions facing each other, and bolts 14 are inserted into the through holes and the inserted bolts 14 are inserted. It is fixed by screwing the nut 14a.

  Here, the head portion 14b of the bolt 14 is fitted into a recess (not shown) formed in the first outer wall panel 7, and the nut 14a is fitted into a recess (not shown) formed in the intermediate post 13. . This prevents the head 14b and the nut 14a of the bolt 14 from protruding (see FIG. 4).

  On the other hand, the second outer wall panels 8, 8 a are fixedly connected to the housing of the house 1, that is, the floor beam 11, the ceiling beam 12, and the stud 13 through a plurality of bolts 15.

  Next, the operation of the building vibration control structure of the present invention will be described.

  When the house 1 is vibrated due to an earthquake or strong wind, as shown in FIG. 6, the floor beams 11, the ceiling beams 12, and the studs 13 vibrate and relative displacement (shear deformation) occurs between the first outer wall panel 7. Arise.

  At this time, vibration energy is transmitted to the damping member 20, and the elastic portion 22 of the damping member 20 is elastically deformed. Thereby, the 1st outer wall panel 7 rotates centering on the gravity center position which is not shown in figure.

  The rotation of the first outer wall panel 7 is caused by an inertial force that resists vibration of the house 1 acting on the first outer wall panel.

  Therefore, the rotation of the first outer wall panel 7 due to the inertial force absorbs the vibration of the house 1 itself, and the house 1 can be damped. Further, since the vibration is transmitted to the damping member 20 using the surface rigidity of the first outer wall panel 7, the rigidity of the intermediate pillar 13, which is a casing, can be reduced, and the cross-sectional area of the intermediate pillar 13 etc. can be reduced. Can do.

  In addition, the vibration damping member 20 has an attachment portion 21 a that is one end fixed to the inner side of the outer surface 13 a of the intermediate column 13, and a metal plate portion 23 that is the other end protrudes outward from the outer surface 13 a of the intermediate column 13. 7 is connected to the first outer wall panel.

  Therefore, the vibration damping member 20 is attached in a state of entering the inside of the housing 1 of the house 1, and the elasticity that elastically deforms during vibration regardless of the size of the gap between the housing 1 of the house 1 and the first outer wall panel 7. A sufficient thickness of the portion 22 can be ensured. Therefore, the elastic part 22 can be designed to a desired size, and a sufficient vibration damping effect can be obtained with certainty. Further, in the above-described embodiment, the attachment portion 21a which is one end of the vibration damping member 20 is fixed to the intermediary column 13, so that shear deformation due to vibration generated between the intermediary column 13 and the first outer wall panel 7 is damped. It can be reliably transmitted to the member 20 to obtain a damping effect.

  Furthermore, in the above-described embodiment, since the vibration damping member 20 has the elastic portion 22 made of high damping rubber or viscoelastic rubber, the rigidity (fixed degree) and vibration damping force of the vibration damping member 20 can be easily obtained. It is possible to adjust the degree of rigidity and damping force of the entire house 1 to a desired size.

  That is, it is possible to realize optimum vibration suppression by changing the hardness, thickness, diameter, number, etc. of the elastic portion 22 having a cylindrical shape.

  In the above-described embodiment, the first outer wall panel 7 is rotated around the center of gravity by the elastic deformation of the elastic portion 22, but by changing the size of the elastic portion 2, etc. The position of the center of rotation can be set to an optimum position.

  And in the above-mentioned embodiment, since the metallic bracket part 21, the elastic part 22 having elasticity, and the metal metal plate part 23 are laminated, the damping member 20 is formed. The rigidity and the like of the vibration damping member 20 can be further easily adjusted, and the vibration damping member 20 can be firmly and easily attached to the intermediate column 13 and the first outer wall panel 7.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  For example, in the embodiment of the present invention, one end of the vibration damping member 20 is fixed to the stud 13, but is not limited thereto. One end of the vibration damping member 20 may be fixed to the floor beam 11 or the ceiling beam 12.

  In this case, the attachment portion 21 a of the bracket portion 21 of the vibration damping member 20 is fixed to the side surface of the attachment portion 21 a covered by the first outer wall panel 7 of the floor beam 11 or the ceiling beam 12, and the support portion 21 b of the floor beam 11. It is located in parallel with the outer surface 11a and the outer surface 12a of the ceiling beam 12. At this time, the outer surface 21bA of the support portion 21b is attached so as to be located inside the outer surface 11a of the floor beam 11 and the outer surface 12a of the ceiling beam 12.

  Thereby, the shear deformation caused by vibration generated between the floor beam 11 or the ceiling beam 12 and the first outer wall panel 7 can be reliably transmitted to the vibration damping member 20 to obtain a vibration damping effect.

  In addition, the first outer wall panel 7 may be arranged between the base provided on the foundation 2 and the waistline provided between the first floor part 3 and the second floor part 4. You may arrange.

  Furthermore, it is conceivable that the first outer wall panel 7 hangs down due to the weight of the first outer wall panel 7 and a creep phenomenon of the elastic portion 22 of the damping member 20 occurs. To prevent this, the elastic portion 22 may be formed in a rectangular shape. Good.

  In this case, by making the length in the vertical direction longer than the length in the horizontal direction, the rigidity in the vertical direction can be increased, and the drooping due to the weight of the first outer wall panel 7 and the creep phenomenon of the elastic portion 22 can be prevented. be able to.

  Moreover, you may provide the protrusion part which protrudes perpendicularly | vertically at the lower end part of the support part 21b. In this case, when the sagging occurs due to the weight of the first outer wall panel 7, the metal plate portion 23 comes into contact with the projecting portion and is supported, and the projecting portion serves as a stopper to prevent the first outer wall panel 7 from sagging. be able to.

  Further, in the above-described embodiment, the first outer wall panel 7 is connected to the stud 13 by the plurality of vibration damping members 20 and the pair of bolts 14, but it is not necessary to connect by the bolts 14.

  Even in this case, the first outer wall panel 7 can rotate by generating shear deformation with respect to the stud 13 and can obtain a vibration damping effect.

It is a schematic front view of the house which concerns on this invention. It is explanatory drawing which shows the attachment position of the outer wall panel of the 1st floor part of the house shown in FIG. 1, and the formation position of an opening part. It is a front view which shows attachment of the outer wall panel which concerns on this invention. It is AA sectional drawing in FIG. (A) is principal part perspective explanatory drawing which shows the damping member which concerns on this invention, (b) is a structure explanatory drawing of the damping member in Fig.5 (a). It is explanatory drawing which shows typically the state at the time of a vibration transmitting to the 1st outer wall panel utilized for damping | damping which concerns on this invention.

Explanation of symbols

1 building (house)
7 outer wall panel (first outer wall panel)
11 Floor beams (frame)
12 Ceiling beams (frame)
13 Pillar (frame)
13a Outer side surface 20 Damping means (damping member)
21a One end (mounting part)
23 Other end (metal plate part)

Claims (5)

A building damping structure in which an outer wall panel is connected to a building frame such as a pillar, beam, bearing wall, etc. via damping means,
One end of the vibration damping means is fixed to the inside of the outer surface of the housing, and the other end protrudes to the outside of the outer surface of the housing.   The building damping structure according to claim 1, wherein the damping means is fixed to a column having one end extending in a vertical direction.   The building damping structure according to claim 1, wherein the damping means is fixed to a beam having one end extending in a horizontal direction.   The building damping structure according to any one of claims 1 to 3, wherein the damping means includes an elastic portion made of high damping rubber or viscoelastic rubber. The building damping structure according to claim 4, wherein the damping means includes the elastic portion and a metal plate portion, and the metal plate portion and the elastic portion are laminated. .

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