JP5755912B2 - Vibration insulation structure and vibration insulation member - Google Patents

Description

  The present invention relates to a vibration insulation structure that prevents propagation of floor vibration between rooms partitioned by walls such as a partition wall and a boundary wall, and a vibration insulation member used in the vibration insulation structure.

  An apartment house in which a plurality of dwelling units are separated by a boundary wall is known (see Patent Document 1). Here, when a floor panel made of ALC is used as the floor of the house, the vibration of the floor is easy to propagate because the rigidity is lower than the RC floor, and the partition wall between the living rooms and the boundary wall between the dwelling units in the apartment house Even if the sound insulation property is excellent, vibration is propagated through the floor, causing a decrease in sound insulation property between living rooms and between dwelling units.

  Here, it is possible to suppress vibration by placing mortar on the floor panel and increasing the rigidity of the floor, but the finished level of the floor becomes high, the ceiling height is sacrificed, labor or There is a problem that the cost increases. In particular, in the case of a floor on the first floor, there is a demand for providing a heat insulating layer between a floor panel and a floor finishing material in order to improve heat insulation, and it is considered that mortar is placed.

  On the other hand, Patent Document 2 discloses a floor structure configured to cut off a vibration transmission path between adjacent rooms by forming a watermark joint (joint in which a gap is formed) on a composite plate directly under a partition wall. Is disclosed.

JP 2001-214522 A JP 2009-144350 A

  However, it is not preferable to leave a gap without filling the joints of the floor panel made of ALC without filling the mortar from the viewpoint of preventing the floor from slipping, and temporarily filling a cotton-like material such as rock wool. Even if the gap is closed, it does not improve in terms of preventing floor slippage. That is, practically, it is necessary to fill the joints of the floor panel with joint mortar, and as a result, it has been difficult to prevent propagation of floor vibration between the rooms.

  The present invention prevents the propagation of floor vibration between adjacent rooms across a wall by insulating adjacent floor panels in a floor where the joint of the floor panel needs to be filled with joint mortar. An object is to provide a vibration isolation structure and a vibration isolation member.

The present invention relates to a vibration insulation structure for preventing propagation of floor vibration between living rooms partitioned by a wall portion such as a partition wall or a boundary wall, a floor panel forming a joint portion along the wall portion, and a joint A joint panel mortar filled in the joint part and a vibration insulation member disposed in the joint part and blocking the joint joint mortar, and the floor panel is supported on the upper surface of the beam part below the joint part, and the vibration insulation member Is characterized in that the joint mortar is divided into one room side and the other room side, and a gap along the joint part is formed in the joint part.

  In the present invention, since the gap is formed along the joint portion by the vibration insulating member and the joint mortar is divided, propagation of vibration from one room side to the other room side and the opposite direction is prevented. The As a result, propagation of floor vibrations between adjacent living rooms is prevented.

  Further, the vibration insulating member is a bent plate-like member having a pair of dam plates connected through the bent portions, one dam plate dams the joint mortar on the one side of the room, and the other dam plate It is preferable that the joint mortar on the other side of the room is dammed and a gap for dividing the joint is formed between the dam plates. The joint mortar on one room side is dammed with one dam plate part of the vibration insulating member, and the joint mortar on the other room side is dammed with the other dam plate part. The gap that divides is easily formed.

  Further, it is preferable that the bent portion is provided with a plurality of slits formed intermittently along the longitudinal direction. Providing a plurality of intermittently formed slits can reduce the propagation of vibration through the bent portion.

  Furthermore, the dam plate portion has a base end portion on the bent portion side and a tip end portion on the free end side, and a slip stopper piece that protrudes outward and contacts the end face of the floor panel is formed on the tip portion. It is preferable. Until the joint mortar is placed and cured, it can be held at a predetermined position by preventing misalignment by the misalignment stopper.

Further, the vibration insulating member according to the present invention forms a joint portion along the wall portion, a floor panel supported on the upper surface of the beam portion below the joint portion, and a joint mortar filled in the joint portion. A member for use in a floor provided, and a member for preventing propagation of floor vibration between rooms partitioned by a wall, and has a bent plate shape having a pair of weir plates connected via a bent portion , One dam plate part dams the joint mortar on one room side, the other dam plate part dams the joint mortar on the other room side, and a gap is formed between the dam plate parts to divide the joint part. It is characterized by being.

  By installing this vibration insulating member in the joint part, the joint mortar in the joint part can be divided. As a result, propagation of vibration from one room side to the other room side and in the opposite direction is prevented, and propagation of floor vibration between adjacent rooms is prevented.

  Further, it is preferable that the bent portion is provided with a plurality of slits formed intermittently along the longitudinal direction. Providing a plurality of intermittently formed slits can prevent the propagation of vibrations through the bent portion.

  Furthermore, the dam plate portion has a base end portion on the bent portion side and a tip end portion on the free end side, and a slip stopper piece that protrudes outward and contacts the end face of the floor panel is formed on the tip portion. It is preferable. Until the joint mortar is placed and cured, it can be held at a predetermined position by preventing misalignment by the misalignment stopper.

  According to the present invention, in the floor where the joint portion of the floor panel needs to be filled with joint mortar, the adjacent floor panels are insulated from each other to thereby propagate the floor vibration between the adjacent rooms across the wall portion. Can be prevented.

It is a plane sectional view showing typically an apartment house where a vibration insulation structure concerning an embodiment of the present invention was adopted. It is sectional drawing along the II-II line of FIG. 1, and is sectional drawing of the vibration insulation structure which concerns on 1st Embodiment. It is a top view which shows the state which the steel plate used as an insulated metal hardware developed. Insulated hardware is shown, (a) is a perspective view, (b) is a cross-sectional view cut along a direction orthogonal to the longitudinal direction. It is a figure which shows the construction process of a vibration-insulation structure, (a) is a figure which shows the state which has inserted the insulation metal in the joint part, (b) shows the state which has put joint mortar in the joint part FIG. It is sectional drawing of the vibration insulation structure which concerns on 2nd Embodiment of this invention.

Preferred embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)

  The vibration isolation structure according to the first embodiment of the present invention will be described with reference to FIG. 1 and FIG. The vibration isolation structure 1A can be used, for example, in an apartment house B provided with a plurality of dwelling units Ba, Bb, Bc in one building.

  Each dwelling unit Ba, Bb, Bc is provided with one or a plurality of living rooms 2a, 2b, 2c, and the floor 3 of the living rooms 2a, 2b, 2c is configured by a plurality of floor panels 5 and 7 being laid out. ing. The floor panels 5 and 7 are rectangular panels made of lightweight aerated concrete (ALC), for example, and are arranged so that the ends thereof are related to beam portions 9 such as RC foundation beams and horizontal members made of steel frames. Yes. In the present embodiment, an example in which the short sides 5a and 7a of the floor panels 5 and 7 are supported by the beam portion 9 made of an RC foundation beam will be described.

  A joint portion 11 is formed at the joint of the plurality of floor panels 5 and 7, and joint mortar 13 is placed in the joint portion 11. Further, on the floor panels 5 and 7, a heat insulation layer 18 is formed by laminating a floor heat insulation styroscope 15, a plywood 16, a soundproof parquet 17, and the like.

  The adjoining rooms 2a, 2b between the dwelling units Ba, Bb are partitioned by a boundary wall (wall part) 21. The boundary wall 21 is a fireproof stud type wall having a pair of gypsum boards, a stud that supports the gypsum board between the pair of gypsum boards, a heat insulating material accommodated between the gypsum boards, and the like. Excellent in properties.

  The floor panels 5 and 7 of the adjacent living rooms 2a and 2b respectively form a joint 11 along the boundary wall 21 below the boundary wall 21. In the joint 11, a long insulating metal (vibration insulating member) 23 having a V-shaped cross section is disposed, and a joint mortar 13 is placed around the insulating metal 23 so as to close the joint 11. ing.

  As shown in FIGS. 3 and 4, the insulating hardware 23 has a bent plate shape formed by bending a rectangular steel plate P. The steel plate P is provided with a plurality of slits 25 formed intermittently along the longitudinal direction as perforations, and the insulating metal piece 23 is formed by bending a straight line in which the slits 25 are arranged. Yes. The insulating hardware 23 has a bent portion 27 that becomes a fold, and a pair of dam plates 28A and 28B joined by the bent portion 27.

  The dam plate portions 28A and 28B have a pair of long side portions and a pair of short side portions. One long side portion on the bent portion 27 side is a virtual straight portion (base end portion) 28a substantially integrated with the bent portion 27, and the other long side portion is on the free end side. It is the front-end | tip part 28b. A plurality of protruding fins (displacement stopper pieces) 29 are formed at the tip portions 28b of the weir plate portions 28A and 28B. The projecting fins 29 are formed by forming two strips at the tip portion 28b to form strip-shaped short pieces and then folding the short pieces so as to project outward.

  As shown in FIGS. 2 and 5, the vibration isolation structure 1 </ b> A is a floor structure for preventing floor vibration from being propagated between the adjacent rooms 2 a and 2 b of the dwelling units Ba and Bb. On the beam portion 9 provided at the boundary between the dwelling units Ba and Bb, a support side (short side) 5a of the floor panel 5 on the living room 2a side of one dwelling unit Ba and a floor panel on the living room 2b side of the other dwelling unit Bb. 7 support sides (short sides) 7a are locked. A gap of about 15 to 20 mm is formed between the short side 5 a of the one floor panel 5 and the short side 7 a of the other floor panel 7, and this gap is formed in the joint portion 11 along the boundary wall 21. Become.

  An insulating metal piece 23 is inserted into the joint portion 11 with the bent portion 27 facing upward. A plurality of protruding fins 29 are provided on both dam plate portions 28A and 28B of the insulating hardware 23, and the protruding fins 29 slide on the end surfaces of the floor panels 5 and 7 in conjunction with the insertion of the insulating hardware 23. To do. In a state in which the insulating hardware 23 is inserted to the bottom of the joint portion 11, the protruding fins 29 interfere (contact) with the end surfaces of the floor panels 5 and 7. As a result, the projecting fins 29 function to prevent the insulating hardware 23 from coming off, and play the role of preventing the displacement of the insulating hardware 23 and holding it in place until the joint mortar 13 is placed and cured.

  After setting the insulating hardware 23 at a predetermined position in the joint 11, the joint mortar 13 is placed in the joint 11. The joint mortar 13 is filled in a gap between one dam plate portion 28A of the insulating metal piece 23 and the end face of the one floor panel 5, and the other dam plate portion 28B of the insulating metal piece 23 and the other floor panel 7 are filled. It fills in the gap between the end surfaces of the. Here, the joint mortar 13 is not filled in a substantially triangular prism-shaped space formed between the pair of dam plates 28 </ b> A and 28 </ b> B (inside the insulating hardware 23), and extends along the longitudinal direction of the joint 11. A gap S is formed. As a result, the joint mortar 13 is separated between the one room 2a side and the other room 2b side by the insulating hardware 23, and the propagation of the floor vibration through the joint mortar 13 is blocked.

  In addition, the joint mortar 13 may enter inside the insulating hardware 23 from, for example, a slight gap generated by the formation of the protruding fins 29. However, since the amount of the joint mortar 13 that enters the inside of the insulating hardware 23 is very small and does not fill the gap S, it is considered that there is no substantial influence in terms of preventing propagation of floor vibration.

  Of the joint mortar 13 filled in the joint 11, the joint mortar 13 on the one room 2 a side is solidified in a state where the joint mortar 13 is dammed by the one dam plate part 28 </ b> A of the insulating hardware 23, and is on the other room 2 b side. The joint mortar 13 is solidified in a state where it is dammed to the other dam plate portion 28B. Here, since one dam plate portion 28A and the other dam plate portion 28B are integrated via the bent portion 27, the dam plate portions 28A and 28B do not deviate from each other. Accordingly, the displacement between the floor panels 5 and 7 fixed to the dam plates 28A and 28B via the joint mortar 13 is also suppressed.

  Furthermore, a plurality of slits 25 are formed in the bent portion 27 of the insulating metal piece 23 along the crease, and the pair of dam plates 28A and 28B are connected to each other via a bridge portion 26 in which the slit 25 is not formed. It is in a combined state. Therefore, even if the floor vibration is slightly propagated from the bent portion 27 of the insulating hardware 23, the vibration is substantially cut off by the slits 25 arranged in a row, and is limited through the bridge portion 26. It is effective in preventing the propagation of floor vibration.

  As described above, according to the vibration insulating structure 1A according to the first embodiment, the gap S along the joint portion 11 is formed by the insulating hardware (vibration insulating member) 23, and the joint mortar 13 is divided. Propagation of vibration from the 2a side to the other living room 2b side and the opposite direction is prevented. As a result, the propagation of floor vibrations between adjacent living rooms 2a and 2b is prevented.

  Next, with reference to FIG. 6, a vibration isolation structure 1B according to a second embodiment of the present invention will be described. The vibration isolation structure 1B according to the present embodiment includes the same elements as the vibration isolation structure 1A according to the first embodiment. Therefore, the same elements are denoted by the same reference numerals and detailed description thereof is omitted. To do.

  The beam portion 9 is arranged at the boundary between the dwelling units Ba and Bb, the floor panel 31 on the side of the living room 2a of one dwelling unit Ba has a long side 31a supported by the beam unit 9, and the living room of the other dwelling unit Bb The floor panel 33 on the 2b side has a short side 33 a supported by the beam portion 9. Cutout portions 31b for receiving the joint mortar 13 are formed in the long sides 31a of the floor panels 31 and 33 along the longitudinal direction. In the present embodiment, the long side 31 a of one floor panel 31 is disposed along the center line CL of the beam portion 9, and the short side 33 a of the other floor panel 33 is the long side 31 a of one floor panel 31. From about 15 to 20 mm apart. A joint 35 along the boundary wall 21 is formed by this gap.

  The insulating hardware (vibration insulating member) 23 is formed by bending a rectangular steel plate P (see FIG. 3). The steel plate P is provided with a plurality of slits 25 formed intermittently along the longitudinal direction as perforations, and the insulating metal piece 23 is formed by bending a straight line in which the slits 25 are arranged. Yes. The insulating hardware 23 has a bent portion 27 that becomes a fold, and a pair of dam plates 28A and 28B joined by the bent portion 27.

  Among the pair of dam plates 28A and 28B, a plurality of protruding fins (displacement stopper pieces) 29 are formed at the tip of one dam plate 28B. The protruding fins 29 are formed by forming two strips at the tip portion to form strip-shaped short pieces and then folding the short pieces so as to project outward.

  The insulating metal piece 23 is inserted into the joint portion 35 with the bent portion 27 facing upward. The insulating hardware 23 is provided with protruding fins 29 only on one dam plate portion 28B. In the insulating metal 23, the dam plate portion 28 </ b> A on the side where the projecting fins 29 are not provided is in contact with the long side 31 a of one floor panel 31, and the projecting fins 29 of the dam plate portion 28 </ b> B are short sides of the other floor panel 33. 33a abuts. In a state where the insulating hardware 23 is inserted to the bottom of the joint portion 35, the protruding fin 29 interferes with the end surface of the floor panel 33. As a result, the insulating hardware 23 is prevented from coming off, and the joint mortar 13 is driven. Until it is cured, it plays a role of preventing the displacement of the insulating metal 23 and holding it in a predetermined position.

  After setting the insulating hardware 23 at a predetermined position in the joint 11, the joint mortar 13 is placed in the joint 11. The joint mortar 13 is filled in a gap formed between one dam plate portion 28A of the insulating metal piece 23 and the cutout portion 31b of the one floor panel 31, and the other dam plate portion 28B of the insulating metal piece 23 is filled. And the gap between the other floor panel 33 is filled. Here, the joint mortar 13 is not filled in a substantially triangular prism-shaped space formed between the pair of dam plates 28 </ b> A and 28 </ b> B (inside the insulating hardware 23), and extends along the longitudinal direction of the joint 35. A gap S is formed. As a result, the joint mortar 13 is separated between the one room 2a side and the other room 2b side by the insulating hardware 23, and the propagation of the floor vibration through the joint mortar 13 is blocked.

  According to the vibration insulating structure 1B according to the second embodiment, the gap S along the joint portion 11 is formed by the insulating hardware (vibration insulating member) 23 and the joint mortar 13 is divided. Is prevented from propagating vibrations in the other room 2b side and in the opposite direction. As a result, the propagation of floor vibrations between adjacent living rooms 2a and 2b is prevented.

  As mentioned above, although this invention was demonstrated based on each embodiment, this invention is not limited only to said each embodiment. For example, in the above-described embodiment, an example of an insulating metal object in which a plate-like member is bent as a vibration insulating member has been described as an example. It may be an embodiment that can be formed, and may be made of resin.

  1A, 1B ... Vibration insulation structure, 2a ... one room, 2b ... the other room, 3 ... floor, 5,31 ... a floor panel on one room side, 7,33 ... a floor panel on the other room side, 11, 35 ... Joint part, 13 ... Joint mortar, 21 ... Field wall (wall part), 23 ... Vibration insulation member (insulation metal), 25 ... Slit, 27 ... Bending part, 28A, 28B ... Dam plate part, 28a ... Base end Part 28b ... tip part 29 ... protruding fin (displacement stop piece), S ... gap that divides the joint part.

Claims (7)

A vibration insulation structure that prevents the propagation of floor vibrations between rooms partitioned by walls,
A floor panel that forms a joint portion along the wall portion; a joint mortar filled in the joint portion; and a vibration insulating member disposed in the joint portion and damming the joint mortar,
The floor panel is supported on the upper surface of the beam part below the joint part,
The vibration insulation member divides the joint mortar into one room side and the other room side, and forms a gap along the joint part in the joint part. The vibration insulating member has a bent plate shape having a pair of dam plates joined through a bent portion,
One dam plate portion dams the joint mortar on the one room side, and the other dam plate portion dams the joint mortar on the other room side,
The vibration insulation structure according to claim 1, wherein a gap that divides the joint is formed between the barrier plates.   The vibration insulating structure according to claim 2, wherein the bent portion is provided with a plurality of slits formed intermittently along the longitudinal direction. The barrier plate portion has a base end portion on the bent portion side and a tip end portion on the free end side,
4. The vibration insulating structure according to claim 2, wherein a slip-off preventing piece that protrudes outward and contacts an end face of the floor panel is formed at the tip portion. And forming a joint portion along the wall portion, a floor panel supported on the upper surface of the beam portion below the joint portion, and a joint mortar filled in the joint portion, and used for a floor, A member for preventing propagation of floor vibrations between rooms partitioned by a section,
It is a bent plate shape having a pair of weir plate portions that are coupled via a bent portion,
One dam plate portion dams the joint mortar on the one room side, and the other dam plate portion dams the joint mortar on the other room side,
The vibration insulating member according to claim 1, wherein a gap that divides the joint is formed between the barrier plates.   6. The vibration insulating member according to claim 5, wherein the bent portion is provided with a plurality of slits formed intermittently along the longitudinal direction.   The dam plate portion has a base end portion on the bent portion side and a tip end portion on the free end side, and a slip-off preventing piece that protrudes outward and comes into contact with the end surface of the floor panel is formed on the tip portion. The vibration insulating member according to claim 5, wherein the vibration insulating member is provided.

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