JP4603443B2 - Building exterior wall structure - Google Patents

Description

  The present invention relates to an outer wall structure of a building. Specifically, regarding outer wall structures equipped with seismic reinforcement members, the stress applied to the building structure drive due to earthquakes and strong winds is absorbed and attenuated to suppress deformation of the structure drive, and cracks and damage to the outer wall material are prevented. It relates to the outer wall structure of a building to be prevented.

  In recent years, there has been an increasing interest in seismic resistance, vibration control, and anti-vibration properties in wooden buildings and steel structure buildings, and the need for them has been increasing. Conventionally, wooden structures and steel structure buildings have been reinforced. Various reinforcement structures for reinforcing the structural material of the building have been proposed.

  Various exterior wall structures and construction methods for wooden buildings and steel structure buildings are also known, and one of them is the curtain wall type exterior wall structure in which the exterior walls are constructed by attaching the exterior wall panels to the pillars and beam structures of the building. is there. As an outer wall structure with improved seismic resistance in such an outer wall structure, for example, in Patent Document 1, in a curtain wall structure wall having a wooden base, an outer wall material holder is provided so that the outer wall is not destroyed by stress due to deformation of the structure driving body. An outer wall structure is disclosed in which one end of an outer wall such as an outer wall panel is movable by being joined to a plate with a bolt via a loose hole. However, since the outer wall material is directly fixed to a structural material such as a column or a beam via a trunk edge or the like, the stress cannot be sufficiently absorbed when an external stress is applied to the structural material.

  In addition, in the curtain wall type outer wall structure, the outer panel having a frame is integrated on the outside of the flash structure inner panel as the outer wall panel, and the outer wall is constructed to increase the strength of the panel itself. An excellent outer wall structure is disclosed in Patent Document 2, for example.

  Further, for example, in Patent Document 3, in a wooden building, as an outer wall structure for preventing the occurrence of cracks in the mortar layer due to distortion of the building driving body, the outer wall surface of the building driving body is made of an elastic body at intervals. An outer wall structure is disclosed in which a spacer is provided, a back sheet of the outer wall and a wire mesh are provided thereon, and a wall material such as mortar is applied thereon.

  Also in the structures described in Patent Documents 2 and 3, when an external wall material is directly attached to a structural material such as a column or a beam via a trunk edge or the like, and stress is applied to the structural material such as a column or a beam from the outside. In addition, the outer wall material itself may be distorted and deformed following the deformation of the structural material, and the outer wall may be cracked or damaged.

JP-A-5-222790 Japanese Patent Laid-Open No. 10-72886 JP-A-8-74401

  The present invention absorbs and attenuates stress applied to a building structure driving body due to an earthquake or strong wind, suppresses deformation of the structure driving body, and prevents the occurrence of cracks or damage to the wall structure. The purpose is to provide a structure.

  The present invention does not directly attach an outer wall material to a structural material of a building such as a pillar or a beam, and arranges a reinforcing member having vibration damping properties with an energy absorber sandwiched between the structural material of the building, and the body is attached to the reinforcing member. The above object could be achieved by adopting an outer wall structure in which an outer wall material is attached via an edge or the like.

That is, the present invention provides (1) a reinforcing member having a vibration control property having a structure in which an energy absorber is sandwiched between a back metal member and a front metal member, and these are joined and integrated. The surface metal member is connected to the column structure material in a portion where the back surface metal member and the energy absorber that are extended of the surface metal member constituting the reinforcing member do not exist across the other structural material connected to the material. The back metal member constituting the reinforcing member is fixed to the surface of the column structure material, fixed to another structural material, and the outer wall material mounting member is attached to the front surface metal member joined and integrated with the energy absorber. An outer wall structure of a building comprising a structure in which an outer wall member is attached to a member attaching member.

(2) The energy absorber constituting the reinforcing member is a high-damping rubber having an equivalent damping constant (Heq) of 10 to 60% and a shear elastic modulus (G) of 0.05 to 2.0 N / mm ^2. The outer wall structure of a building as described in (1) above, which is one kind selected from an elastic thermoplastic resin.

(3) An outer wall material receiving bracket is installed on another structural material connected to the pillar structure material, and an upper portion and / or a lower portion of the outer wall material is arranged in the outer wall material receiving bracket, and the outer wall material in the receiving bracket The outer wall structure of a building according to any one of the above ( 1) or (2) , wherein the space is filled with an impact material.

(4) The outer wall structure of a building according to any one of the above ( 1) to (3) , wherein the outer wall material is an outer wall material having at least a heat insulating material as a constituent member.
Is the gist.

  The outer wall structure of the present invention has a structure in which an energy absorber is sandwiched between a back surface metal member and a front surface metal member between a pillar structure material and another structure material connected to the pillar structure material, and these are joined and integrated. A reinforcing member having damping properties is attached, and the outer wall material is attached to the surface metal member of the reinforcing member via the outer wall material attaching member, and stress (tear shear force or Stretching force) is absorbed and attenuated by the energy absorber that constitutes the reinforcing member to suppress deformation, thereby suppressing deformation and distortion of the outer wall material and preventing generation and breakage of cracks.

  The reinforcing member having seismic control used for the outer wall structure of the present invention is a structure in which the reinforcing member is extended by spanning between the column structure material and the other structure material connected to the column structure material. One end is fixed to the other structural material (beam or foundation) connected to the column structure material, the back metal member is attached to the column structure material, and the surface metal member and the portion corresponding to the column structure material of the energy absorber are fixed If the outer wall material is attached to the surface of the surface metal member sandwiched and integrated by sandwiching the energy absorber, it is applied from the outside by the action of the sandwiched energy absorber (for example, high damping rubber) Since the movement of the outer wall material due to the stress and the movement of the structural material such as the pillar of the building are separated, the strength of the structure itself can be reinforced using the rigidity of the outer wall material.

  Further, the reinforcing member having damping properties used in the outer wall structure of the present invention is such that the front and back metal members constituting the reinforcing member enhance the reinforcing effect against stress from the outside of the structural material, and are sandwiched between both metal members. In combination with the action of the formed energy absorber (for example, high-damping rubber), it is possible to provide an outer wall structure with improved vibration proofing and earthquake resistance.

  In the outer wall structure of the present invention, as the outer wall material, an outer wall material having at least a heat insulating material is used as a structure of the wall material, and it is preferable to use an outer wall material using a refractory material or a non-combustible material together with the heat insulating material. Further, it is possible to provide an outer wall structure that is excellent in heat insulation, fire resistance, etc. in addition to earthquake resistance and vibration resistance.

  The outer wall structure of the present invention has a structure in which an energy absorber is sandwiched between a back surface metal member and a front surface metal member between a pillar structure material and another structure material connected to the pillar structure material, and these are joined and integrated. A reinforcing member having damping properties is attached, and the outer wall member is attached to the surface metal member of the reinforcing member via the outer wall member attaching member.

The reinforcing member used in the present invention has a configuration in which an energy absorber is sandwiched between the metal member of the back surface metal member and the surface metal member, and these are joined and integrated. The energy absorber constituting the reinforcing member is a high-damping rubber having viscoelastic heat, an equivalent damping constant (Heq) of 10 to 60%, and a shear elastic modulus (G) of 0.05 to 2.0 N / mm ^2. A plastic resin is selected. High damping rubber is usually preferred.

  In the present invention, the reinforcing member is installed across the column structural material and other structural materials connected to the column structural material, but the reinforcing member may be installed over the entire length of the column structural material. When it is not necessary to install the entire length in relation to strength, material, etc., it can be partially installed at the intermediate portion between the beam of the column structure material and the base. In addition, the column structure material may be simply referred to as “column”, and another structure material connected to the column structure material may be referred to as “beam, foundation”. In addition, both the column structure material and other structure materials connected to the column structure material may be referred to as “structure material”.

Moreover, it is not necessary for the energy absorber which comprises a reinforcement member to be arrange | positioned over the whole between a surface metal member and a back surface metal member, and you may arrange | position partially.
In the present invention, when the reinforcing member is arranged over the entire length of the column structure material, the energy absorber is in the vicinity of the connection portion between the column structure material and another structure material (such as a beam or a base) connected to the column structure material. The energy absorber is preferably arranged with a certain length, but the other parts may be arranged with an appropriate interval partially. In relation to the strength of the structural member itself, it may be better to partially arrange the energy absorber.

  Further, the back surface metal member constituting the reinforcing member is attached to the column structure material, and the shape thereof is a flat plate shape, the cross section is a U shape, etc., and the surface metal member is a T shape, L shape, I shape. There are various shapes such as shapes (strips), crosses, etc., and the appropriate shape is selected according to the part to which the reinforcing member is applied (for example, columns and beams, columns and foundations, or corner columns). Used.

  For example, when applied between columns, studs and beams, or between pillars, studs and foundations, the surface metal member is generally T-shaped, I-shaped, L-shaped, or cross-shaped. When the back surface metal member is flat, the back surface metal member is attached to the surface of the column, and when the cross section is U-shaped, it is attached to the side surface of the column. In the case where the reinforcing member is applied to the intermediate pillars of the wooden structure material, it is preferable that the cross section is U-shaped. In the case of a steel structure material, the back metal member is usually a flat plate, and the front metal member is usually T-shaped, I-shaped or cross-shaped.

  The outer wall structure according to the present invention can be applied to either a so-called inner heat insulating construction method in which a heat insulating material is provided on the indoor side or a so-called outer heat insulating construction method in which a heat insulating material is provided on the outdoor side. The outer wall structure according to the present invention is useful for the outer heat insulating construction method and can solve the conventional problems found in the outer heat insulating construction method. As the outer wall material applied to the outer wall structure of the present invention, those conventionally used as outer wall materials are used. When adopting the outer heat insulating construction method, it is desirable to have at least a heat insulating material as a constituent member constituting the outer wall material, and further to have a non-combustible material or a refractory material as a constituent member together with the heat insulating material. As the structure of the outer wall material, for example, mounting base plate / moisture-proof waterproof sheet / heat insulating material / incombustible material or fireproof material / exterior material, mounting base plate / moisture-proof waterproof sheet / heat insulating material / incombustible material or fireproof material / breathable waterproof sheet Examples include, but are not limited to, exterior materials and the like. The heat insulating material is preferably a synthetic resin foam such as polystyrene foam or polyolefin foam, and the non-combustible material and refractory material are usually used for wall materials, and examples thereof include inorganic materials. Further, a ventilation portion is provided between the heat insulating material and the incombustible material or the refractory material. Examples of the exterior material include a commonly used exterior panel.

The outer wall structure according to the present invention will be specifically described with reference to the drawings.
FIG. 1 shows a reinforcing member (hereinafter simply referred to as a “reinforcing member”) 3 having damping properties according to the present invention, spanning a column 1 and a beam 2, and a fixing member (not shown) at a fixing portion 34 of the reinforcing member. The outer wall structure of the present invention is an example of a wooden building in which the body edge 5 is attached to the surface of the reinforcing member 3 with the body edge fixing bolt 53 and the outer wall material 6 is attached to the body edge. An explanatory diagram is shown. The outer wall material 6 shown in FIG. 1 is composed of a mounting base plate 61 / a moisture-proof waterproof sheet 63 / a heat insulating material 62 / a fire resistant material (or non-combustible material) 65 / a moisture permeable waterproof sheet 64 / an exterior material 66. The thing which the ventilation | gas_flowing part was provided through the trunk edge etc. between (or noncombustible material) was illustrated.

  In FIG. 1, the reinforcing member 300 is a reinforcing member having a U-shaped cross section of the back surface metal member and a T-shaped surface metal member, and the back surface metal member is attached by a fixing member (bolt) 56 on the side surface of the column or the stud. The reinforcing member 301 shows a mode in which the back surface metal member is a flat plate and the front surface metal member is a T-shaped reinforcing member, and the back surface metal member is attached to the surface of the column by a fixing member (bolt) 56. The reinforcing member 302 is a reinforcing member having a U-shaped cross section of the back surface metal member and an L-shaped surface metal member, and is applied to the corner pillar, and the back surface metal member is attached by a fixing member (bolt) 56 on the side of the column. The aspect which is shown is shown. The reinforcing member 303 has a cross-shaped surface metal member. In addition, an outer wall material receiving bracket 7 is provided on the base.

The fixing portion of the reinforcing member to the structural material is fixed to the structural material such as a beam or a base at a portion where the front surface metal member constituting the reinforcing member is extended and the back surface metal member and the energy absorber are not present. In FIG. 1, the fixing portion of the reinforcing member to the structural member corresponds to a T-shaped lateral portion and an L-shaped lateral portion of the surface metal member constituting the reinforcing member. Further, when the surface metal member has a cross shape, it is a cross-shaped lateral portion.

  FIG. 2 is a longitudinal sectional view, partly cut away, showing an example of an embodiment of an outer wall structure in which an outer wall material is attached to a body edge attached to a surface metal member constituting the reinforcing member 3. In FIG. 2, the reinforcing member 3 is an extended portion of the front surface metal member 32 constituting the reinforcing member 3, and is fixed to the beam 2 via the spacer 4 at a portion where the back surface metal member 31 and the energy absorber 33 are not present. The back metal member 31 joined and integrated with the energy absorber 33 constituting the reinforcing member 3 is fixed to the column 1, and the body edge 5 is attached to the surface of the surface metal member 32 by a body edge fixing bolt (not shown). The outer wall material 6 is attached to the trunk edge 5. The lower part of the outer wall material 6 is arranged in an outer wall material receiving metal fitting 7 attached to the base 2, and an outer wall structure in which a space between the receiving metal fitting and the outer wall material is filled with a buffer material such as a synthetic resin foam. The aspect of is shown.

  The energy absorber 33 constituting the reinforcing member 3 shown in FIG. 2 is arranged with a required length in the vicinity of the connection between the beam and the column, and the other parts are arranged with an appropriate interval partially. The reinforcing member is shown. Moreover, the outer wall material 6 shown in FIG. 2 exemplifies the one constituted by the mounting base plate 61 / the heat insulating material 62 / the refractory material 65 / the exterior material 66. In addition, although a moisture-proof waterproof sheet, a moisture-permeable waterproof sheet, etc. are not shown in figure, it can provide suitably as needed.

  FIG. 3 is an example of an embodiment of an outer wall structure in which an outer wall material mounting angle member is used as the outer wall member mounting member, and the outer wall member is attached to the reinforcing member via the angle member. It is principal part sectional drawing of the part which shows the attachment state of the outer wall material to. In FIG. 3, an attachment angle 54 is attached to a surface metal member constituting the reinforcing member 3 fixed to the pillar member 101 by a fixing member 57, and an outer wall material attachment angle member (body edge) is attached to the attachment angle 54. ) 51 and 52 are fixed by bolts. The lower part of the upper outer wall member 6 is attached to the outer wall attaching angle member 51 by an attaching member such as a bolt, and the upper part of the lower outer wall member 6 is attached to the outer wall attaching angle member 52 by an attaching member such as a bolt. . For example, a cushioning material 8 such as a rubber elastic body, a synthetic resin elastic body, or a synthetic resin foam is disposed on the upper and lower outer wall material joints, and a waterproof sealing material (not shown) is further provided. In addition, the outer wall material 6 shown in FIG. 3 illustrates the thing of the structure similar to what was shown in FIG. In addition, although a moisture-proof waterproof sheet, a moisture-permeable waterproof sheet, etc. are not shown in figure, it can provide suitably as needed.

  In FIG. 3, the aspect in which the cushion material and the waterproof sealing material are arranged at the upper and lower joint portions of the outer wall material is shown. However, the cushion material and the sealing material are also joint portions of the outer wall material in the embodiments other than FIG. 3. A cushioning material and a sealing material for waterproofing are disposed on the outer wall material, and a cushioning material and a sealing material are also disposed on the left and right joints of the outer wall material.

  FIG. 4 is a side view, partly cut away, showing an example of an embodiment of an outer wall structure of a steel structure material to which an outer wall material is attached by an upper holding construction method using an outer wall material receiving metal fitting. The steel plate 110 for mounting which fixes a reinforcement member is provided in the beam structure material 201, and the surface metal member 32 which comprises a reinforcement member by spanning a reinforcement member between the column structure material (inter-column) 101 and the beam structure material 201. The fixed portion 34 extended is fixed to the mounting steel plate 110 with a fixing member (bolt nut) 56, and the back metal member 31 joined and integrated with the energy absorber constituting the reinforcing member is connected to the column structure material 101. The outer wall material mounting angle member (body edge) 52 is attached to the mounting angle 54 attached to the surface of the surface metal member 32 by the fixing member 57 (bolt). This is an example of the outer wall structure in which the outer wall material 6 is attached to the (trunk edge) 52.

  The mounting steel plate 110 for fixing the reinforcing member is attached to a mounting angle 54 provided on the beam structure material by a fixing member (bolt nut) 56. Although the example in which the reinforcing member is mounted and fixed to the mounting steel plate 110 provided on the beam structural material has been shown, an angle for mounting is provided instead of the mounting steel plate, and the reinforcing member is directly attached to the mounting member with a bolt nut or the like. You can also.

  As shown in FIG. 4, the outer wall member 6 is attached to an angle member (trunk edge) 52 attached to a surface metal member 32 constituting the reinforcing member 3 via an attachment angle 54. The lower part of the outer wall material 6 is arranged on an outer wall material receiving metal fitting 7 attached by a fixing member 58 to an attachment steel plate provided on another lower beam structure material, and is disposed in a space portion between the receiving metal fitting and the outer wall material. A buffer material 10 such as a synthetic resin foam is filled.

  In the outer wall structure with the upper holding structure, one end (lower part) of the outer wall material is placed on the outer wall material receiving metal fitting, and the space between the receiving metal fitting and the wall material is filled with a cushioning material such as foam, so that an earthquake or strong wind This is a preferred embodiment because it has the effect of buffering the strain and vibration generated in the outer wall material due to the above, and mitigating the damage and cracking of the wall material.

  FIG. 5 shows a sectional view taken along line XX of FIG. Moreover, FIG. 6 is the front view which cut | disconnected a part which shows the attachment state of the reinforcement member of this invention in the outer wall structure shown in FIG. The reinforcing member 3 shown in FIG. 6 has an I-shaped (strip-shaped) surface metal member 32 constituting the reinforcing member, and the back surface metal member 31 attached to the column structure is a flat plate. A fixing portion in which the surface metal member 32 constituting the reinforcing member is extended is fixed to the mounting steel plate 110 with a fixing member (for example, a bolt and nut), and is joined and integrated with the energy absorber constituting the reinforcing member. The back metal member 31 is fixed to the surface of the column structure material (inter-column) 101 by a fixing member (for example, a bolt and nut).

  An example of the reinforcing member in the present invention is shown in FIGS. FIG. 7 shows a reinforcing member in a form in which the front surface metal member is T-shaped and the back surface metal member is U-shaped in cross section, (1) is a perspective view, (2) is a cross-sectional view along line BB in (1), (3) is a cross-sectional view taken along line AA of (1).

  FIG. 8 shows a reinforcing member in a form in which the front surface metal member is T-shaped and the back surface metal member is flat, (1) is a perspective view, (2) is a sectional view taken along the line BB of (1), (3) ) Shows a cross-sectional view taken along line AA of (1).

  FIG. 9 shows a reinforcing member in which the front surface metal member has a cross shape and the back surface metal member has a flat plate shape, (1) is a perspective view, and (2) is a sectional view taken along line BB in (1).

  The outer wall structure of the present invention using a reinforcing member having damping properties is a column structure material and a structural material (beam or foundation) in which an extended end of a surface metal member constituting the reinforcement member is connected to the column structure material. The back metal member is attached to the pillar structure material, and the outer wall material is attached to the surface of the surface metal member sandwiched and integrated with the energy absorber, so that the sandwiched energy absorber (for example, Due to the action of high-damping rubber), the movement of structural materials such as column structure materials, beam structure materials, and foundations in buildings due to externally applied stress and the movement of outer wall materials are separated and move independently. The strength of the structure itself can be reinforced using the rigidity of the material.

  Furthermore, in the outer wall structure of the present invention, the front and back metal members constituting the reinforcing member having damping properties used enhance the reinforcing effect against external stress applied to the structural material, and the energy sandwiched between the two metal members. Combined with the action of the absorber (for example, high-damping rubber), an outer wall structure with improved vibration resistance and earthquake resistance can be obtained.

It is explanatory drawing which shows an example of the outer wall structure by this invention. It is a partially cut longitudinal cross-sectional view which shows an example of the embodiment of the outer wall structure in the wooden structure material by this invention. It is principal part sectional drawing of the part which shows an example of the embodiment of the outer wall structure which attached the outer wall material to the reinforcement member via the outer wall material attachment angle material. It is a partially cutaway side view which shows an example of another embodiment of the outer wall structure in the steel structure material by this invention. The XX sectional view taken on the line of FIG. 4 is shown. The front view which shows the attachment state of the reinforcement member in the outer wall structure shown in FIG. An example of the reinforcement member used for this invention is shown. The another aspect of the reinforcement member used for this invention is shown. The another aspect of the reinforcement member used for this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 Column structure material 2,201 Beam or base structure material 3,300,301,302,303 Reinforcement member 31 Back surface metal member 32 Front surface metal member 33 Energy absorber 34 Reinforcement member fixing part 4 Spacer 5 Body edge 51, 52 Outer wall material mounting angle material 53 Body edge fixing bolt 54 Mounting angle 56, 57, 58 Fixing member 6 Outer wall material 61 Mounting base plate 62 Heat insulating material 63 Moisture proof waterproof sheet 64 Moisture permeable waterproof sheet 65 Fireproof material or incombustible material 66 Exterior material 7 Outer wall material bracket 8 Cushion material 10 Buffer material 110 Steel plate for mounting

Claims (4)

Between the structural member that connects the column structure material and the column structure material to the reinforcing member that has the vibration damping property, in which the energy absorber is sandwiched between the back surface metal member and the front surface metal member, and these are joined and integrated. And extending the back surface metal member of the surface metal member constituting the reinforcing member and fixing the surface metal member to another structural material connected to the column structure material in a portion where the energy absorber does not exist, The back metal member constituting the reinforcing member is fixed to the surface of the pillar structure material, the outer wall material mounting member is attached to the surface metal member joined and integrated with the energy absorber, and the outer wall material is attached to the outer wall material mounting member. The outer wall structure of a building, characterized by comprising an open structure. The energy absorber constituting the reinforcing member has a high damping rubber, viscoelastic thermoplasticity, having an equivalent damping constant (Heq) of 10 to 60% and a shear elastic modulus (G) of 0.05 to 2.0 N / mm ² . The outer wall structure of a building according to claim 1, wherein the outer wall structure is a kind selected from resins. An outer wall material receiving bracket is installed on another structural material connected to the column structure material, and an upper and / or lower portion of the outer wall material is arranged in the outer wall material receiving bracket, and in a space portion with the outer wall material in the receiving metal fitting. The outer wall structure of a building according to claim 1 or 2 , which is filled with a cushioning material. The outer wall structure of a building according to any one of claims 1 to 3 , wherein the outer wall material is an outer wall material having at least a heat insulating material as a constituent member.

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