JP5053673B2 - Damping materials, joint members and buildings - Google Patents

Description

  The present invention relates to a joining member and a building for joining members such as beams and columns constituting the building.

  Conventionally, as a joining member for joining members such as beams and columns constituting a building, for example, as disclosed in Patent Document 1, for example, a ceiling beam of a first floor building unit and a second floor building unit are disclosed. An inter-beam damping material that is disposed between floor beams and absorbs vibration is known.

  The inter-beam damping material is bonded to the opposing surfaces of the ceiling beam and the floor beam with double-sided tape, respectively.

On the other hand, since the inter-beam damping material is not a member for structurally joining the beams, it is sufficient that an adhesive force is ensured so as not to be peeled off during the period of use.
Japanese Patent Laid-Open No. 11-22019

  However, the adhesive force of the double-sided tape used conventionally is strong, and when disassembling a unit building in units of building units, the beams cannot be easily peeled off.

  In addition, for example, when lifting a building unit with a crane and attempting to disassemble it, if a large force is applied to release the joining with the double-sided tape, the double-sided tape suddenly peels off and the reaction becomes unstable due to the reaction. There is a risk, and the building unit that has been lifted is greatly dangerous because it shakes greatly.

  Furthermore, it is preferable that the double-sided tape is easily peeled off and the surface is clean when trying to reuse the building members, and it is not possible to deform or damage the members due to the large force applied at the time of dismantling. I want to avoid it.

  Therefore, an object of the present invention is to provide a joining member that facilitates the dismantling of a building in which members are joined with an adhesive or the like, and a building including the joining member.

  In order to achieve the above object, the joining member of the present invention is a joining member that joins members constituting a building, and the joining member is provided with an adhesive layer on a surface facing one member, The one member side of the adhesive layer is formed so that the inner side is raised from the side edge, and the bonding strength with the one member is weaker than the bonding strength with the other member.

  Here, on one member side of the adhesive layer, one or a plurality of cross-sectional arched raised portions can be formed.

  Further, the adhesive layer or the base layer thereof may be formed of an elastic material.

  Furthermore, the joining member of the present invention is a joining member that joins between the members constituting the building, and the joining member has a non-adhesive portion or weakness on at least a part of the side edge of the surface facing the one member. An adhesive portion is provided, and the bonding strength with one member is weaker than the bonding strength with the other member.

  Further, the non-adhesive portion or the weakly bonded portion may be formed on one side edge, and an adhesive portion may be formed on the other side edge facing the one side edge on the same surface side.

  Furthermore, the building of this invention was equipped with one of said joining members.

  In the joining member of the present invention configured as described above, since the adhesive layer on the surface facing one member protrudes due to the bulging, the joining area with respect to the member is reduced as compared with the case where the joining area does not bulge. Moreover, since it forms so that an inner side may protrude from a side edge, the joint strength of a side edge is weak.

  For this reason, a member can be gradually peeled from the side edge with weak joint strength, and it can cancel easily joining of a member of a building and a joining member, without applying big force.

  Moreover, by forming the shape of one member side of the adhesive layer into a single cross-sectional arch shape, the bonding strength can be gently reduced on both sides with the vertex of the arc as a boundary. On the other hand, by forming a plurality of cross-sectional arch shapes, the joint area can be further reduced, and the joint portions are scattered, so that the joint strength on one member side is reduced as a whole. be able to.

  Furthermore, when the member is moved away from the joining member by forming the adhesive layer or the base layer thereof with the elastic material, the member is easily peeled with the aid of the restoring force of the elastic material.

  Further, the bonding member of the present invention is provided with a non-adhesive portion or a weakly bonded portion on the side edge of the surface facing one member, and is weaker than the bonding strength with the other member.

  For this reason, when it is going to peel off the member of a building from a joining member, it can control to be surely peeled off from the one member side with weak joint strength.

  In addition, since the non-adhesive portion or the weakly bonded portion is provided on at least a part of the side edge, the member can be easily peeled from the side edge provided with the non-adhesive portion or the weakly bonded portion having a low bonding strength.

  Furthermore, a non-adhesive part or a weak adhesive part is provided on one side edge, and an adhesive part is provided on the opposite side edge on the same surface side. The member can be easily peeled off from the joining member by lifting the bonding portion side.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view showing a configuration of an inter-beam damping material 2 as a joining member for joining members constituting a building.

  As shown in FIG. 2, the inter-beam damping material 2 is disposed in, for example, part A of a unit building 10 as a building.

  First, the structure of the unit building 10 will be described. The unit building 10 is configured by connecting a plurality of box-shaped building units 1, 1 </ b> A, 1 </ b> B in the horizontal direction and the vertical direction.

  As shown in FIGS. 2 and 3, the building units 1, 1 </ b> A, 1 </ b> B are mainly composed of a ramen structure formed by a floor beam 11, a ceiling beam 12, and a pillar 13. The building unit 1B on the lower floor is structurally connected via a bolt (not shown) between the floor beam 11 and the ceiling beam 12 or between the upper and lower columns 13 and 13.

  In the present embodiment, as shown in FIG. 3, a vibration-proof plate mounting hole 12a is provided in the ceiling beam 12, and the first-floor ceiling beam 12 and the second-floor floor beam are provided via the vibration-proof plate (not shown). 11 are structurally connected to each other by bolts (not shown).

  Further, as shown in FIG. 3, the inter-beam damping material 2 is disposed between the ceiling beam 12 and the floor beam 11. Here, the inter-beam damping material 2 is also disposed across the adjacent building units 1B, 1 (see FIG. 2).

  Further, the inter-beam damping material 2 is interposed between the upper and lower beams in order to reduce floor impact sound and floor vibration, and does not require a joining strength that structurally joins both beams. The upper and lower surfaces may be in close contact with the floor beam 11 and the ceiling beam 12, respectively.

  The configuration of the inter-beam damping material 2 will be described with reference to FIG. 1. The inter-beam damping material 2 includes a double-sided tape 24 for joining to the ceiling beam 12 which is the other member, and an upper surface of the double-sided tape 24. The base 23 is bonded to the base 23, the base layer 22 is formed in a substantially trapezoidal shape in cross section on the base 23, and the double-sided tape 21 as an adhesive layer attached to the upper surface of the base layer 22. The

  As shown in FIG. 3, when the release paper 25 is peeled off, the double-sided tape 21 has an adhesive portion 2 b that appears on the upper surface, and an inner portion (upper side of the trapezoid) that is raised on the floor beam 11 side that is one member is the floor beam 11. It is in contact with and adhered to the lower surface.

  That is, the lower surface of the double-sided tape 21 is bonded to the base layer 22 having a substantially trapezoidal shape in cross section, and the edges on both sides of the base layer 22 are lower than the upper side and are separated from the lower surface of the floor beam 11. The non-adhesive part 2a is formed without the double-sided tape 21 to be bonded to the floor beam 11 coming into contact.

  The underlayer 22 has a laminated structure in which a UV curable acrylic plate 22a, which is a synthetic resin plate, and a steel plate 22b therebelow are integrated by acrylic adhesives 22c and 22c.

  In addition, the base 23 is formed in a rectangular shape in cross section with substantially the same width as the lower side of the base layer 22, and the UV cured acrylic plates 23a and 23a and the steel plate 23b are integrated by the acrylic adhesives 23c and 23c. It is a laminated structure.

  Here, the base layer 22 and the base portion 23 have been described separately for the sake of explanation, but these exhibit a damping function as an integrally formed laminated structure.

  Next, the operation of the inter-beam vibration damping material 2 of the present embodiment will be described.

  The inter-beam damping material 2 of the present embodiment configured as described above is such that the double-sided tape 21 on the surface facing the floor beam 11 has an upper side shorter than the lower side due to the base layer 22 being raised in a substantially trapezoidal shape in cross section. Projecting toward the floor beam 11, the bonding area to the floor beam 11 is smaller than the bonding area between the ceiling beam 12 and the double-sided tape 24.

  Further, at the side edge of the double-sided tape 21 on the floor beam 11 side (one member side), the non-adhesive portion 2a is formed without the trapezoidal hypotenuse being in contact with the floor beam 11, so that the bonding strength is the ceiling beam 12. It is weaker than the side (the other member side).

  When a force is applied in the direction of the arrow in FIG. 1, the floor beam 11 can be gradually peeled off from the side edge (non-adhesive portion 2a) having a weak joint strength, and the building can be easily built without applying a large force. The joint between the floor beam 11 and the inter-beam damping material 2 of the unit 1A can be released.

  Hereinafter, Example 1 of the above-described embodiment will be described with reference to FIG. The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  In the first embodiment, a case will be described in which an inter-beam vibration damping material 3 in which a raised portion 32 having a cross-sectional arch shape is formed as a base layer is used as a joining member.

  As shown in FIG. 4 (a), the raised portion 32 has a substantially central arc of the inter-beam vibration damping material 32 with the top protruding upward, and a double-sided tape 31 as an adhesive layer along the upper surface of the arc. Is pasted. That is, one member side (floor beam 11 side) of the double-sided tape 31 is formed so that the inner side protrudes from the side edge.

  Further, the raised portion 32 is formed in a semi-cylindrical shape by an elastic material such as an acrylic adhesive.

  Further, a base 33 and a double-sided tape 34 are laminated below the raised portion 32, and the inter-beam vibration damping material 3 is joined to the ceiling beam 12 via the double-sided tape 34. Here, although illustration is omitted about the structure of the base 33, it can be set as laminated structures, such as a UV hardening acrylic board, a steel plate, and an acrylic adhesive, similarly to the said embodiment.

  Next, the operation of the inter-beam vibration damping material 3 of the first embodiment will be described.

  When the second floor building unit 1A is suspended and pressed against the floor beam 11 from above the inter-beam damping material 3 joined on the ceiling beam 12 via the double-sided tape 34, the vicinity of the apex of the raised portion 32 made of an elastic material Is crushed and deformed into a substantially trapezoidal shape in sectional view as shown in FIG.

  In this way, when the raised portion 32 of the elastic material is deformed and brought into contact, the amount of deformation at the vertex of the arc that protrudes most to the floor beam 11 side is maximized, so the restoring force is also maximized at the vertex. Bonding strength is maximized by pressure bonding.

  Then, with the apex of the arc as a boundary, the bonding strength gradually decreases toward the side edges on both sides, and the non-bonded portions 3a and 3a that do not contact the floor beam 11 are formed on the side edges.

  For this reason, when peeling off the floor beam 11 from the inter-beam damping material 3, it can be easily peeled off from the non-bonding portion 3a side.

  Further, when the floor beam 11 starts to lift, the bulge 32 is gradually released from the force holding the bulge 32, and the bulge 32 starts to return to the cross-sectional arch shape by the restoring force.

  That is, the range in which the inter-beam damping material 3 that has returned to the cross-sectional arch shape and the lower surface of the floor beam 11 contact is only the ridgeline in the depth direction of the arc apex, so the restoring force of the raised portion 32 is reduced from the floor beam 11 to the inter-beam damping. It can be understood that the force for peeling the material 3 is assisted.

  In this way, the base layer is made of an elastic material and has a arch-shaped raised portion 32 in cross-sectional view, so that the joint strength can be gradually reduced on both sides of the arc apex, and the restoring force of the elastic material can be assisted. Thus, the floor beam 11 can be easily peeled off from the inter-beam damping material 3.

  Other configurations and functions and effects are substantially the same as those in the above-described embodiment, and thus description thereof is omitted.

  Hereinafter, Example 2 will be described with reference to FIG. The description of the same or equivalent parts as those described in the above embodiment or Example 1 will be given the same reference numerals.

  In the second embodiment, a case will be described in which an inter-beam vibration damping material 4 in which a plurality of cross-sectional arch-shaped raised portions 42,.

  As shown in FIG. 5 (a), a double-sided tape 41 as an adhesive layer is attached to the upper surface side of the raised portions 42,... Made of an elastic material, and these raised portions 42,. A plurality of rows and a semi-cylindrical shape are formed over the entire width of the base portion 43. That is, one member side (floor beam 11 side) of the double-sided tape 41 is formed so that the inner side protrudes from the side edge. A double-sided tape 44 is attached to the lower surface of the base 43.

  Next, the operation of the inter-beam damping material 4 of the second embodiment will be described.

  As shown in FIG. 5 (b), when the floor beam 11 is pressed from above the inter-beam vibration damping material 4, the vicinity of the apexes of the raised portions 42,... Made of an elastic material is similarly crushed and deformed, Between the both side edges of the inter-beam damping material 4 and the raised portions 42, 42, non-adhesive portions 4 a that do not contact the lower surface of the floor beam 11 are formed.

  For this reason, the joint area between the beam damping material 4 and the floor beam 11 is smaller than the joint area between the double-sided tape 44 and the ceiling beam 12, and the floor beam 11 remains in a horizontal state as shown in FIG. Also when lifted, the joint between the inter-beam damping material 4 and the floor beam 11 is released first.

  Moreover, since the restoring force acts on the raised portions 42,... That have been deformed by being pressed against the floor beam 11, the floor beam 11 can be easily peeled off from the inter-beam damping material 4 with the assistance of the restoring force. .

  Other configurations and functions and effects are substantially the same as those of the above-described embodiment or Example 1, and thus description thereof is omitted.

  Hereinafter, Example 3 of the above-described embodiment will be described with reference to FIG. The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  Fig.6 (a) is the top view which looked at joining members 5, such as a beam damping material, from the upper part.

  On the upper surface of the bonding member 5, an adhesive having a low bonding strength is applied to form an adhesive portion 5b as an adhesive layer.

  When applying the adhesive portion 5b, the side edges on both sides of the joining member 5 apply an adhesive to the corrugation to form a plurality of triangular non-adhesive portions 5a,. By doing so, the bonding strength of the side edges can be weakened (weakly bonded portion) as compared to the bonded portion 5b where the adhesive near the center is applied over the entire surface.

  FIG. 6B is a view in which the joining strength at both side edges of the joining member 6 is weakened in a form different from that in FIG.

  That is, in FIG. 6B, by forming an isosceles triangular bonding portion 6b on the side edge, the corner portion of the side edge is made into a non-bonding portion 6a, 6a having a right triangle shape.

  Thus, by providing the non-adhesive portions 5a and 6a in which the bonding strength of the side edges of the bonding members 5 and 6 is weaker than the inner bonding strength, the members can be easily peeled from there.

  Moreover, it is good also as a weak adhesion part by apply | coating the adhesive agent whose adhesive force is weaker than the adhesion parts 5b and 6b to the non-adhesion parts 5a and 6a. Furthermore, it is good also as a weak adhesive part by apply | coating the adhesive agent whose adhesive force is weaker than the adhesive parts 5b and 6b in strip shape along a side edge.

  Other configurations and functions and effects are substantially the same as those in the above-described embodiment, and thus description thereof is omitted.

  Hereinafter, Example 4 of the above-described embodiment will be described with reference to FIG. The description of the same or equivalent parts as those described in the above embodiment will be given the same reference numerals.

  In the fourth embodiment, an adhesive layer is formed by applying an adhesive to one surface of the joining members 7 and 8 as in the third embodiment. However, in the fourth embodiment, the side edges facing each other on the same surface side are used. The bonding strength between them is changed.

  For example, in FIG. 7 (a), adhesive portions 7b and 7b are provided in the form of vertical stripes on one side edge 71 side, and non-adhesive portions 7a, 7a and 7a are provided between them. Compared to 72, the bonding strength on the side edge 71 side is weak (weakly bonded portion).

  On the other hand, in FIG. 7B, the adhesive is applied in a waveform only on one side edge 81 side, non-adhesive portions 8a,... Are provided between the waves, and the entire surface is applied on the other side edge 82 side. Therefore, the bonding strength is weaker on the one side edge 81 side than on the other side edge 82 side (weakly bonded portion).

  In this way, by adding strength to the joint strength between the side edges facing each other on the same surface side, the one side edge 71 provided with the non-adhesive portions 7a, 8a with the other side edges 72, 82 having strong joint strength as fulcrums. , 81 side can be lifted, and the member can be easily peeled off from there.

  Other configurations and functions and effects are substantially the same as those of the above-described embodiment or Example 3, and thus description thereof is omitted.

  The best embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment and example, and the design does not depart from the gist of the present invention. Such modifications are included in the present invention.

  For example, in the above-described embodiment and Examples 1 and 2, the inter-beam vibration damping materials 2, 3, and 4 that join the ceiling beam 12 and the floor beam 11 as an example of the joining member have been described, but the present invention is not limited thereto. Rather than joining members that are structurally not required for joint strength and that can be easily adjusted, such as joints between columns and joint members between floors and beams The present invention can also be applied to.

  Moreover, in the said embodiment and Example 1, 2, although the joining with respect to the ceiling beam 12 which is another member was also performed via the double-sided tape 24,34,44, it is not limited to this, To another member The connection may be a screw or a bolt.

  Furthermore, in the embodiment and Examples 1 and 2, the shape of the adhesive layer is defined by the shape of the base layers 22, 32, and 42. However, the shape of the adhesive layer itself is not limited to this. One member side may be formed so that the inner side protrudes from the side edge.

It is explanatory drawing which shows the use condition of the beam damping material of the best embodiment of this invention. It is a perspective view explaining the schematic structure of a unit building. It is the perspective view which showed the detailed structure of the A section of FIG. (A) is a side view explaining the schematic structure of the inter-beam damping material of Example 1, (b) is a side view explaining the state which mounted the floor beam on the inter-beam damping material. (A) is a side view for explaining the schematic configuration of the inter-beam damping material of Example 2, (b) is a side view for explaining a state in which a floor beam is placed on the inter-beam damping material, and (c) is It is a side view explaining the state of the vibration damping material between beams when a floor beam is peeled off. (A) is a top view explaining schematic structure of the joining member of Example 3, (b) is a top view explaining schematic structure of the joining member of another form. (A) is a top view explaining schematic structure of the joining member of Example 4, (b) is a top view explaining schematic structure of the joining member of another form.

Explanation of symbols

1 unit building (building)
11 Floor beams (one member)
12 Ceiling beam (the other member)
2 Damping material between beams (joining member)
2a Non-adhesive part 2b Adhesive part 21 Double-sided tape (adhesive layer)
22 Underlayer 3 and 4 Damping material between beams (joining member)
3a, 4a Non-adhesive parts 31, 41 Double-sided tape (adhesive layer)
32, 42 Raised part (underlayer)
5, 6 Joining member 5a, 6a Non-adhesion part 5b, 6b Adhesion part 7, 8 Joining member 7a, 8a Non-adhesion part 7b, 7b Adhesion part 71, 81 One side edge 72, 82 The other side edge

Claims (6)

It is a vibration damping material that joins the members that make up the building,
The vibration damping material has a laminated structure in which a UV curable acrylic plate and a steel plate are integrated with an adhesive,
The damping material is easy peeling portion formed at the side edges of the surface facing the one member, braking, characterized in that towards the joint strength between the one member is weaker than the bonding strength between the other member Vibration material . An adhesive layer is provided on the surface facing the one member on which the easily peelable portion is formed, and the side of the one side of the adhesive layer is formed so that the inner side protrudes from the side edge. The vibration damping material according to claim 1, wherein the damping member is the easy peeling portion. 3. The easily peelable portion is formed on the side edge of one member side of the adhesive layer by forming one or a plurality of cross-sectional arch-shaped raised portions. 4. Damping material . 2. The vibration damping material according to claim 1, wherein the easy peeling portion is a non-bonding portion or a weak bonding portion provided on at least a part of a side edge of a surface facing one member . It is a joining member that joins between the members constituting the building,
The joining member has a laminated structure in which a synthetic resin plate and a steel plate are integrated by an adhesive,
The bonding member has an easily peelable portion formed on the side edge of the surface facing one member, and the bonding strength with the one member is weaker than the bonding strength with the other member,
The easy peeling part is a non-adhesive part or a weak adhesive part provided on at least a part of a side edge of a surface facing one member, and the non-adhesive part or the weak adhesive part is formed on one side edge, junction member you wherein an adhesive portion is formed at the other side edge which faces in the same side to the one side edge. A building comprising the vibration damping material according to any one of claims 1 to 4 or the joining member according to claim 5 .

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