WO2013012012A1

WO2013012012A1 - Wooden framework building

Info

Publication number: WO2013012012A1
Application number: PCT/JP2012/068225
Authority: WO
Inventors: 信治中田; 暁矢崎
Original assignee: 旭化成ホームズ株式会社
Priority date: 2011-07-19
Filing date: 2012-07-18
Publication date: 2013-01-24
Also published as: JPWO2013012012A1; JP6096659B2; TW201307644A

Abstract

A wooden framework building is a building which, when a displacement occurs in the building due to an earthquake or the like, can fully adapt to the displacement, and is provided with curtain walls attached to a lower beam and an upper beam.

Description

Wooden frame building

The present invention relates to a wooden frame building.

Conventionally, as shown in Patent Document 1 below, a wooden framed building in which a plurality of ALC panels are attached to a building frame is known. In this building, a plurality of ALC panels are juxtaposed in the vertical direction and the horizontal direction. Each ALC panel is provided with a through hole for inserting a locking member such as a screw. By screwing a locking member into a pillar or the like constituting the building frame, the ALC panel is pressed and fixed toward the pillar or the like.

Specifically, six ALC panels are arranged in parallel in the vertical direction between the lower beam and the upper beam. In this building, a plurality of studs are arranged at regular intervals in the left-right direction, and each ALC panel is fixed to the lower beam, the upper beam, or the studs at eight locations by a locking member. . Furthermore, there is a gap between the locking member inserted through the through hole and the ALC panel, and the locking member is allowed to move freely in the through hole. And surface decorations, such as a tape material and a decorative board, are provided on the joint part between at least two ALC panels.

With this configuration, when a displacement occurs in the building frame due to an earthquake or the like, the displacement is absorbed in the gap between the locking member and the ALC panel. Thereby, it is prevented that ALC panels produce a relative displacement difference, and peeling of a surface decoration etc. is prevented.

JP 2002-339481 A

However, in the conventional building described above, a plurality of panels are fixed in the vertical direction by providing the studs, and many locking members for fixing the studs are provided. Therefore, when a displacement occurs in the building frame, the gap may not be able to absorb the displacement, and there is a possibility that the ALC panel may be damaged starting from the fixed portion by the locking member. As described above, in a conventional building, when a displacement occurs in the building due to an earthquake or the like, there is a case where the displacement cannot be completely followed.

The object of the present invention is to provide a wooden framed building that can sufficiently follow the displacement when the building is displaced due to an earthquake or the like.

木 A wooden frame building that has solved the above problems has a book wall attached to the lower and upper beams.

According to this wooden frame building, since the book wall is attached to the lower beam and the upper beam, it is possible to attach the book wall without requiring a stud. Here, the book wall is a wall that does not bear structural strength. With the book wall attached in this way, the number of attachment locations can be reduced, and a locking structure that can be locked (swayed) with respect to the lower beam and the upper beam can be easily realized. Therefore, when a displacement occurs in the building due to an earthquake or the like, the book wall can be locked with respect to the lower beam and the upper beam, and the displacement of the building can be sufficiently followed.

In the wooden frame building, the book wall faces the upper beam in the thickness direction of the book wall, and the book wall has one bolt protruding from the inner side surface of the book wall toward the upper beam. The upper beam is formed with one bolt insertion hole through which the bolt is inserted, and the book wall can be rotated with respect to the upper beam by screwing the bolt and nut inserted into the bolt insertion hole. Is attached. In this case, since the book wall can be freely locked with respect to the upper beam, it can reliably follow the displacement of the upper beam. Further, there is no need to use a ruler or the like separately, and the locking construction method can be realized with a simple structure.

In the wooden frame building, a damping material made of a viscoelastic material is interposed between the inner surface of the book wall and the outer surface of the upper beam. In this case, it is possible to increase the area where the damping material is interposed between the book wall and the upper beam without attaching an additional member for attaching the damping material. Is increased.

Moreover, the damping material is arranged on both sides of the bolt inserted through the bolt insertion hole. In this case, the damping material can be arranged at a position where the swing width of the book wall tends to be large with the bolt as a fulcrum, and the damping action can be exhibited more effectively.

According to one aspect of the present invention, when a displacement occurs in a building due to an earthquake or the like, the displacement can be sufficiently followed.

FIG. 1 is a perspective view schematically showing a structure of an embodiment of a wooden frame building. FIG. 2 is a cross-sectional plan view of the upper beam, column, and book wall in FIG. FIG. 3 is an enlarged cross-sectional view showing the structure for attaching the book wall to the foundation. FIG. 4 is an enlarged cross-sectional view showing a structure for attaching a book wall to the upper beam. FIG. 5 is a conceptual diagram showing a state in which the book wall shakes when a displacement occurs in the building. FIG. 6 is an enlarged sectional view showing a second aspect of the book wall mounting structure. FIG. 7 is an enlarged cross-sectional view showing a third aspect of the book wall mounting structure. FIG. 8 is a perspective view showing a fourth aspect of the book wall mounting structure. FIG. 9 is an enlarged cross-sectional view showing the fourth aspect of the book wall mounting structure and showing the book wall mounting structure on the foundation.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant descriptions are omitted.

As shown in FIG. 1, the wooden frame building 1 is a building having a wooden frame structure. The wooden frame building 1 is, for example, two stories. FIG. 1 shows a first floor portion of a wooden frame building 1. The wooden frame building 1 includes a continuous foundation 2 formed along the outer periphery of the wooden frame building 1, a through pillar 6 standing on the continuous foundation 2 and extending to the second floor roof, and an adjacent through pillar 6. It has a second-floor floor beam 3 laid between them, and a high column 7 extending from the continuous foundation 2 to the second-floor floor beam 3 or from the second-floor floor beam 3 to the second-floor roof. The continuous foundation 2 has a function as a beam for receiving a ground reaction force acting upward.

A plurality of vertically long book walls 4 are attached to the continuous foundation 2 and the second floor floor beam 3. Wall bodies W1 and W2 are formed by arranging a plurality of book walls 4 side by side along the continuous foundation 2 in the left-right direction. Each book wall 4 is constituted by a rectangular ALC panel. Each book wall 4 has a length that reaches from the vicinity of the upper end of the continuous foundation 2 to the vicinity of the upper end of the second floor beam 3. That is, each book wall 4 has a length corresponding to the height of the first floor. Each book wall 4 is attached to the continuous foundation 2 and the second-floor floor beam 3, and is not attached to the through pillar 6 or the upper floor pillar 7. The book wall 4 is a so-called curtain wall that partitions the outdoor side and the indoor side of the wooden frame building 1 and is a wall that does not bear structural strength. In such a mounting structure of the first floor book wall 4, the continuous foundation 2 corresponds to the lower beam, and the second floor beam 3 corresponds to the upper beam.

As shown also in FIG. 2, the protruding corner between the book wall 4 forming one wall body W1 and the book wall 4 forming another wall body W2 orthogonal to the wall wall W1 is vertically long and has a cross section L. A character-shaped corner panel 17 is installed. The corner panel 17 is composed of an ALC panel, and is fixed to the through column 6 with a bolt, a fixture, or the like.

The soil concrete 8 is formed on the indoor side of the continuous foundation 2. A plurality of floor bundles 9 are juxtaposed on the soil concrete 8 in a direction parallel to the continuous foundation 2, and a horizontal member 10 constructed between the continuous foundations is supported by these floor bundles 9. A plurality of floor panels 11 on the first floor are installed on the continuous foundation 2 and the horizontal member 10. These floor panels 11 are also constituted by ALC panels.

A bar-shaped receiving material 13 having a quadrangular cross section is fixed to the side surface of the second floor beam 3. The receiving member 13 extends along the longitudinal direction of the second-floor floor beam 3, and is attached to an intermediate portion in the height direction of the second-floor floor beam 3. A plurality of second-floor floor panels 14 are installed on the receiving

members

13 and 13 fixed to the parallel second-floor floor beams 3 and 3 facing each other (only one floor panel 14 is shown in FIG. 1). ing). These floor panels 14 are also constituted by ALC panels. The cross section (beam formation) of the second-floor floor beam 3 is appropriately changed according to the magnitude of the acting load. A brace 16 is appropriately provided between the second-floor floor beam 3, the through column 6, and the upper floor column 7.

The attachment structure of the book wall 4 will be described in more detail with reference to FIGS. FIG. 3 is an enlarged cross-sectional view showing the attachment structure of the book wall 4 to the continuous foundation 2, and FIG. 4 is an enlarged cross-sectional view showing the attachment structure of the book wall 4 to the second-floor floor beam 3.

As shown in FIG. 3, in the attachment structure A of the book wall 4 to the continuous foundation 2, a wall receiver 20 having a substantially L-shaped cross section is fixed on the upper surface 2 a of the continuous foundation 2. The wall support 20 extends vertically on the upper surface 2a and extends horizontally toward the outdoor side of the upper surface 2a. One wall receiver 20 may be provided continuously in the extending direction of the continuous foundation 2, or a plurality of wall receiving hardware 20 may be provided separately in the extending direction of the continuous foundation 2. On the horizontal portion of the wall support 20, a spacing holder 21 having a square cross section is placed. The lower part 4 a of the book wall 4 is placed on the interval holder 21. The space | interval holder 21 is what keeps the space | interval of the upper surface 2a of the continuous foundation 2, and the lower part 4a of the book wall 4, and ensures air permeability indoors and outdoors.

A bolt 23 that protrudes toward the indoor side is fixed to the lower portion 4a of the book wall 4. The bolt 23 is a bolt with a hook having a flange 26 at an intermediate portion and having male threads cut at shaft portions on both sides of the flange 26. One of the bolts 23 is screwed into the embedded nut 27 embedded in the inside of the book wall 4 until the flange 26 comes into contact with the inner surface of the book wall 4, and the other side of the bolt 23 projects toward the indoor side. On the inner surface side of the lower portion 4 a of the book wall 4, a vertical portion of the wall receiving metal 20 abuts, and a flat mounting bracket 22 is provided, and a bolt 23 passes through the mounting bracket 22. The mounting bracket 22 is fixed to the inner surface side of the lower portion 4 a of the book wall 4 by a nut 24, and the lower end thereof is pressed against the vertical portion of the wall bracket 20. In other words, the mounting bracket 22 is fixed to the lower portion 4a of the book wall 4 and engaged with the wall receiver 20 to restrict the movement of the book wall 4 to the outdoor side.

The book wall 4 attached in this way to the continuous foundation 2 is restricted from moving in the out-of-plane direction (direction perpendicular to the wall surface formed by the book wall 4; indoor and outdoor direction) and It is movable in a direction along the direction (perpendicular to the plane of FIG. 3). That is, the book wall 4 is attached to the continuous foundation 2 so as to be freely rockable (swingable).

As shown in FIG. 4, in the attachment structure B of the book wall 4 to the second floor beam 3, the upper part 4b of the book wall 4 faces the second floor beam 3 in the thickness direction. A cylindrical recess 4c is formed on the outer surface side of the upper portion 4b of the book wall 4, and further, a through hole 4d that communicates the recess 4c with the inner surface side of the upper portion 4b is formed. The recess 4c and the through hole 4d are provided with mounting bolts 30 projecting from the inner side surface 4e of the book wall 4 toward the second floor beam 3. On the other hand, the second floor beam 3 is formed with a bolt insertion hole 3b at a position facing the through hole 4d, and the mounting bolt 30 is inserted into the bolt insertion hole 3b. Some clearance may be provided between the peripheral surface of the bolt insertion hole 3 b and the mounting bolt 30. The mounting bolt 30 protrudes from the inner side surface 3 c of the second-floor floor beam 3. The book wall 4 is attached to the second floor beam 3 by screwing the mounting bolt 30 and the nut 31 together. A locking plate 39 is interposed between the inner side surface 3 c of the second floor beam 3 and the nut 31. Although not shown, the dent 4c is filled with mortar or the like.

Here, one mounting bolt 30 is provided for one book wall 4, and correspondingly, a bolt insertion hole 3 b for mounting one book wall 4 is provided on the second floor. One is formed on the beam 3. The book wall 4 thus attached to the second-floor floor beam 3 via one mounting bolt 30 is restricted from moving in the out-of-plane direction, and has a wall surface with the mounting bolt 30 as an axis. It can be rotated in a horizontal plane. That is, the book wall 4 is attached to the second-floor floor beam 3 so as to be freely rockable.

Furthermore, a damping material 32 made of a viscoelastic body is interposed between the inner side surface 4e of the book wall 4 and the outer side surface 3d of the second floor beam 3. The damping material 32 is provided on most of the inner side surface 4 e of the book wall 4 facing the second-floor floor beam 3.

As described above, each of the plurality of book walls 4 shown in FIG. 1 is attached to the continuous foundation 2 so as to be freely locked, and is also attached to the second floor beam 3 so as to be freely locked. In other words, the lower part 4 a and the upper part 4 b of each book wall 4 are attached to the continuous foundation 2 and the second-floor floor beam 3. Each book wall 4 is not connected to a building frame other than the continuous foundation 2 and the second-floor floor beam 3. Further, a stud for attaching the book wall 4 is not necessary.

Next, the attachment structure C of the book wall 40 on the second floor will be described. An inverted T-shaped wall receiver 33 is fixed to the upper surface 3 a of the second floor beam 3, and a lower part 40 a of the second-level book wall 40 is placed on the wall receiver 33. A bolt 36 protruding toward the indoor side is fixed to the lower portion 40 a of the book wall 40. The bolt 36 is a barbed bolt having the same configuration as the bolt 23 in the mounting structure A. The mounting bracket 34 provided on the inner surface side of the lower portion 40 a is fixed to the inner surface side of the lower portion 40 a by bolts 36 and nuts 37, and the lower end thereof is pressed against the vertical portion of the wall bracket 33. That is, the mounting bracket 34 is fixed to the lower portion 40a and engaged with the wall bracket 33 to restrict the movement of the book wall 40 to the outdoor side.

The book wall 40 attached in this way to the second-floor floor beam 3 is restricted from moving in the out-of-plane direction and is movable in the direction along the wall surface (the direction perpendicular to the paper surface of FIG. 4). It is attached to the second-floor floor beam 3 so as to be freely rockable. In addition, although illustration is abbreviate | omitted, the upper part of the book wall 40 is attached similarly to the upper part 4b of the book wall 4 with respect to the floor beam of a rooftop floor. In such a mounting structure of the book wall 40 on the second floor, the second-floor floor beam 3 corresponds to the lower beam, and the floor beam on the roof floor corresponds to the upper beam. In addition, the floor panel of a rooftop floor is constructed by the receiving material fixed to the side surface of the floor beam similarly to the floor panel 14 of the 2nd floor.

According to the wooden frame building 1, since the book wall 4 is attached to the continuous foundation 2 and the second-floor floor beam 3, it is possible to attach the book wall 4 without requiring a stud. The number of places where the book wall 4 is attached is reduced to two parts, ie, the lower part 4a and the upper part 4b, and a rocking construction method capable of rocking (swinging) the continuous foundation 2 and the second floor beam 3 is realized. Therefore, when a horizontal force acts on the building 1 due to an earthquake or the like, the wall 4 is locked to the continuous foundation 2 and the second floor beam 3 and sufficiently follows the displacement of the building 1 (FIG. 5). reference). In addition, material costs and construction labor are reduced due to the small number of attachment points. The same effect can be obtained with the second-level book wall 40.

Further, the upper portion 4b of the book wall 4 is rotatably attached to the second floor beam 3 by screwing the mounting bolt 30 inserted through the bolt insertion hole 3b and the nut 31. The book wall 4 can be locked with respect to the floor beam 3 and can reliably follow the displacement of the second floor beam 3 (see FIG. 5). In addition, it is not necessary to use a ruler or the like separately, and the locking construction method can be realized with a simple structure.

Moreover, since the damping material 32 which consists of a viscoelastic body is interposed between the inner side surface 4e of the book wall 4 and the outer side surface 3d of the 2nd floor floor beam 3, it is for attaching the damping material 32 Without attaching an additional member, the interposing area of the damping material 32 is made large between the book wall 4 and the second-floor floor beam 3, and as a result, the damping effect is enhanced.

Furthermore, since the corner panel 17 is fixed to the through pillar 6, when a horizontal force is applied due to an earthquake or the like and the building 1 is displaced, the corner panel 17 is inclined integrally with the through pillar 6. The wall body W1, W2 is pushed by the corner panel 17 to follow the displacement of the building 1. Therefore, the followability with respect to the displacement of the building 1 is improved as the whole wall bodies W1 and W2.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.

For example, as shown in FIG. 6, in the attachment structure D of the book wall 40 between the first floor and the second floor, the lower part 40a of the book wall 40 may be attached in the same manner as the upper part 4b of the book wall 4. Specifically, the second floor floor beam 3 is provided at a position slightly higher than the position shown in FIG. 4, so that the lower portion 40 a of the book wall 40 faces the second floor floor beam 3. A recess 40c and a through-hole 40d are provided in the lower portion 40a, a mounting bolt 41 projects from the inner side surface 40e of the book wall 40, and a mounting bolt 41 is installed in a bolt insertion hole 3e provided in the second floor beam 3. The lower portion 40 a of the book wall 40 is attached to the second-floor floor beam 3 using the nut 42 and the locking plate 43. The lower end of the book wall 40 is supported by a T-shaped wall receiver 45 fixed to the inner side surface 3 c of the second-floor floor beam 3. The damping material 32 is also interposed between the inner side surface 40 e of the book wall 40 and the outer side surface 3 d of the second-floor floor beam 3. In this case, an L-shaped floor support 44 having an L-shaped cross section can be fixed to the inner side surface 3 c of the second floor beam 3, and the floor panel 14 can be placed on the floor support 44. According to such an attachment structure D, the book wall 40 is attached to the second-floor floor beam 3 so as to be rotatable on a wall surface around the attachment bolt 41 in a horizontal plane.

Further, like the mounting structure E of the upper portion 4b of the book wall 4 shown in FIG. 7 and the mounting structures A and C shown in FIGS. It is good also as a structure to make.

Further, as a mounting bolt in the mounting structure A (see FIGS. 4 and 6) of the upper part 4b of the book wall 4 and the mounting structure D (see FIG. 6) of the lower part 40a of the book wall 40, a bolt 23 (see FIG. 3) and A similar bolt with a hook may be used. Moreover, it is not restricted to a bolt with a hook, You may make it screw the general volt | bolt which consists of a shaft part and a head from the inner side of the floor beam 3 with respect to an embedded nut.

Damping material can be omitted. The wooden frame building is not limited to two stories, but may be one story or three stories.

Further, as shown in FIG. 8, the mounting bolt 30 passed through the bolt insertion hole 3b is sandwiched as in the mounting structure F of the vertically long wall 50 attached to the continuous foundation 2 and the second floor beam 3. A pair of damping materials 51 may be arranged. That is, the damping material 51 is arranged on both sides of the mounting bolt 30 in the extending direction of the second-floor floor beam 3. Specifically, the pair of damping members 51 are provided at positions symmetrical with respect to the mounting bolts 30, and are interposed between the inner side surface 50 e of the book wall 50 and the outer side surface 3 d of the second floor beam 3. Be dressed. As a result, a gap is formed between the mounting bolt 30 and the damping material 51. In the case of this aspect, when the book wall 50 is rotated with the mounting bolt 30 as a fulcrum, the vibration damping material 51 is disposed at a portion where the swing width of the book wall 50 is increased, so that the vibration damping action is more effectively performed. Is demonstrated.

In addition, by adjusting the tightening of the nut 31 to the mounting bolt 30, the damping material 51 can be sandwiched between the second-floor floor beam 3 and the book wall while being pre-compressed. Thereby, the damping performance of the damping material 3 can be further improved.

In addition, by forming a coating film in advance on the indoor side surface of the ALC panel which is the book wall 50, it is possible to improve the adhesion of the damping material 51 to the book wall 50 and to further improve the damping action. is there.

Further, the ALC panel as the book wall 50 is provided with a frame-shaped reinforcing bar 50f embedded therein, and the damping material 51 is bonded in a region surrounded by the reinforcing bar 50f in a plan view so that the ALC is locked. It is also possible to suppress problems such as the book wall 50 formed by the panel being excessively pulled by the damping material 51 and the end portion being damaged by the pulling.

Next, with reference to FIG. 9, the attachment structure G of the book wall 50 with respect to the continuous foundation 2 is demonstrated. A wall receiver 55 having a substantially L-shaped cross section is fixed on the upper surface 2 a of the continuous foundation 2, and a spacing holder 56 is placed on the wall receiver 55. The lower part 50 a of the book wall 50 is placed on the spacing holder 56. On the other hand, a wooden base 53 is attached via a steel base material 52 on the upper surface 2 a of the continuous foundation 2 and at a position closer to the room than the wall support 55.

A hooked bolt 58 that protrudes toward the indoor side is fixed to the lower part 50 a of the book wall 50. One of the hooked bolts 58 is screwed into an embedded nut 57 embedded in the inside of the book wall 50, and the other is passed through a bolt insertion hole 53 b formed in the base 53 of the hooked bolt 58. 53 is fixed.

A pair of vibration damping materials 54 are interposed between the outer side surface 53a of the base 53 and the inner side surface 50e of the book wall 50 so as to sandwich the bolt 58.

In the said embodiment, although terms, such as a continuous foundation and a floor beam, were used, the frame structure which concerns on this invention is a structure where a book wall is attached to the lower horizontal member and upper horizontal member in each hierarchy. It can also be explained.

DESCRIPTION OF SYMBOLS 1 ... Wooden frame building, 2 ... Continuous foundation, 3 ... Second-floor floor beam (upper beam), 3b ... Bolt insertion hole, 3d ... Outer surface of (upper beam), 3e ... Bolt insertion hole, 4 ... Book wall, 4e ... inner surface (of the wall), 30 ... mounting bolt, 31 ... nut, 41 ... mounting bolt, 42 ... nut.

Claims

A wooden framed building with a book wall attached to the lower and upper beams.
The book wall faces the upper beam in the thickness direction of the book wall,
The book wall is provided with one bolt projecting from the inner surface of the book wall toward the upper beam,
One bolt insertion hole through which the bolt is inserted is formed in the upper beam,
2. The wooden shaft according to claim 1, wherein the book wall is rotatably attached to the upper beam by screwing the bolt and a nut inserted into the bolt insertion hole. Building building.
The wooden frame building according to claim 1, wherein a damping material made of a viscoelastic material is interposed between an inner side surface of the book wall and an outer side surface of the upper beam.
3. A wooden frame building according to claim 2, wherein a damping material made of a viscoelastic material is interposed between the inner side surface of the book wall and the outer side surface of the upper beam.
The wooden frame building according to claim 4, wherein the damping material is arranged on both sides of the bolt inserted into the bolt insertion hole.