Wood composite wall structure

Abstract

To provide a ligneous composite wall structure improved in workability, while heightening design.SOLUTION: A ligneous composite wall structure comprises: a frame having a pair of columns, an upper beam and a lower beam installed to the pair of columns; a pair of wooden surface materials 44 arranged between the upper beam and the lower beam and facing each other in the outer surface direction of the frame; a pair of end part partition plates 50 and an intermediate partition plate 54 connecting the pair of wooden surface materials 44 and partitioning a space between the pair of wooden surface materials 44 into a plurality of filling spaces R in the material axis direction of the beam; and filling concrete 60 filled into each of the multiple filling spaces R and connected to the upper beam and the lower beam.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a wood composite wall construction. [Background technology]

[0002] 2. Description of the Related Art A wall structure including a reinforced concrete earthquake-resistant wall and a wooden earthquake-resistant wall covering the wall surface of the reinforced concrete earthquake-resistant wall is known (see, for example, Patent Document 1).

[0003] Also, a steel plate concrete wall structure formed by pouring concrete between steel plates is known (see, for example, Patent Document 2).

[0004] Furthermore, a building block is known that includes a pair of opposing decorative panels and a connecting member that connects the pair of decorative panels together (see, for example, Patent Document 3). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2015-040401 A [Patent Document 2] JP 2002-339485 A [Patent Document 3] JP 2003-003591 A Summary of the Invention [Problem to be solved by the invention]

[0006] The technology disclosed in Patent Document 1 can enhance the design by covering the surface of a reinforced concrete earthquake-resistant wall with a wooden earthquake-resistant wall. However, there is room for improvement in terms of workability, since the construction of the reinforced concrete earthquake-resistant wall requires the installation and removal of temporary formwork.

[0007] In consideration of the above-mentioned facts, the present invention aims to improve the workability of wood composite wall structures while enhancing their design. [Means for solving the problem]

[0008] The wooden composite wall structure described in claim 1 includes a frame having a pair of columns and upper and lower beams erected on the pair of columns, a pair of wooden panelings arranged between the upper and lower beams and facing each other in the out-of-plane direction of the frame, a partition plate connecting the pair of wooden panelings and partitioning the space between the pair of wooden panelings into a plurality of filled spaces in the material axis direction of the beams, and filled concrete that is filled into each of the multiple filled spaces and joined to the upper and lower beams. Equipped with.

[0009] According to the composite wood wall structure of claim 1, the frame has a pair of columns and upper and lower beams erected on the pair of columns. A pair of wood panelings is arranged between the upper and lower beams. The pair of wood panelings face each other in the out-of-plane direction of the frame. The pair of wood panelings are connected by a partition plate. The partition plate divides the space between the pair of wood panelings into a plurality of filled spaces in the material axis direction of the beams. The multiple filled spaces are filled with filling concrete that is joined to the upper and lower beams. This forms a composite wood wall.

[0010] Here, the pair of wooden panels and the partition plate function as a formwork for the filling concrete. This eliminates the need to temporarily install or remove a formwork for filling concrete. This improves the design while improving the ease of construction of the wooden composite wall.

[0011] In addition, by connecting a pair of wooden paneling with a partition board, it is possible to prevent the pair of wooden paneling acting as formwork from opening when filling with concrete.

[0012] Furthermore, the filled concrete is joined to the beams above and below. This allows the seismic force (horizontal force) to be transmitted from the upper and lower beams to the filled concrete during an earthquake. The seismic force transmitted to the filled concrete is then transmitted to the pair of wooden surface panels via the partition plate. In this way, not only the filled concrete but also the pair of wooden surface panels can resist seismic force during an earthquake, improving the earthquake resistance of the wooden composite wall.

[0013] In addition, by filling multiple spaces divided by partition plates with concrete and dividing the concrete into multiple parts, the concrete resists earthquake forces like a bending column. This improves the toughness of the wood composite wall, thereby improving its deformation performance.

[0014] The composite wood wall structure described in claim 2 is the composite wood wall structure described in claim 1, which comprises multiple pairs of the wood panel members aligned in the material axis direction of the beam, and the multiple pairs of the wood panel members are joined in a state where the partition plates provided at each end are overlapped.

[0015] According to the wooden composite wall structure of claim 2, there are provided a plurality of pairs of wooden panel members arranged in the material axis direction of the beam. The plurality of pairs of wooden panel members are joined in a state where the partition plates provided at the respective ends are overlapped with each other.

[0016] By providing partition plates at the ends of a pair of wooden paneling in this manner, the wooden composite wall can be easily expanded as needed.

[0017] The wood composite wall structure described in claim 3 is the wood composite wall structure described in claim 1 or 2, further comprising a connecting steel bar that is embedded in the filled concrete and connects the filled concrete to the beam.

[0018] According to the wood composite wall structure of claim 3, a joint reinforcing bar is embedded in the filled concrete. By using this joint reinforcing bar to join the filled concrete to the upper and lower beams, the earthquake resistance of the wood composite wall can be improved. Effect of the Invention

[0019] As described above, according to the present invention, it is possible to improve the ease of construction of a wooden composite wall structure while enhancing the design. [Brief description of the drawings]

[0020] [Figure 1] FIG. 2 is an elevational view showing a frame and a wooden composite wall to which a wooden composite wall structure according to one embodiment is applied. [Diagram 2] 2 is an elevational cross-sectional view showing the upper beam and the upper portion of the wood composite wall shown in FIG. 1. [Diagram 3] 2 is an elevational cross-sectional view showing the lower beam and the lower part of the wood composite wall shown in FIG. 1. [Figure 4] 4 is a cross-sectional view taken along line 4-4 of FIG. 1. [Diagram 5] This is a cross-sectional plan view showing a wooden composite wall to which a modified example of a wooden composite wall structure according to one embodiment is applied. [Figure 6] A modified example of a wooden composite wall structure according to one embodiment is shown in a cross-sectional plan view of a pillar and a wooden composite wall. [Figure 7] A modified example of a wooden composite wall structure according to one embodiment is shown in a cross-sectional plan view of a pillar and a wooden composite wall. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, a wooden composite wall structure according to one embodiment will be described with reference to the drawings.

[0022] (wood composite wall structure) As shown in FIG. 1, the wooden composite wall structure according to this embodiment includes a frame 10 and a wooden composite wall 40.

[0023] (frame) The frame 10 is a rigid frame having a pair of columns 20 and an upper beam 30U and a lower beam 30L erected on the pair of columns 20. The pair of columns 20 are, for example, made of reinforced concrete and are erected with a horizontal gap between them. Each column 20 has a plurality of column main reinforcements 22 and a plurality of shear reinforcements 24 (see FIG. 6) embedded therein.

[0024] The upper beam 30U and the lower beam 30L are erected on a pair of columns 20 with a gap between them in the vertical direction. As shown in Fig. 2, the upper beam 30U is made of reinforced concrete and has a plurality of beam main reinforcements 32 and a plurality of shear reinforcements 34 buried therein. Similarly, as shown in Fig. 3, the lower beam 30L is made of reinforced concrete and has a plurality of beam main reinforcements 32 and a plurality of shear reinforcements 34 buried therein.

[0025] In addition, the arrow X shown in each figure indicates the material axis direction of the upper beam 30U and the lower beam 30L (the width direction of the wood composite wall 40). Also, the arrow Y direction indicates the out-of-plane direction of the frame 10 (the thickness direction of the wood composite wall 40). Also, the upper beam 30U and the lower beam 30L are examples of upper and lower beams.

[0026] (wood composite wall) As shown in Fig. 1, the wooden composite wall 40 is, for example, an earthquake-resistant wall or a load-bearing wall provided within the structural plane of the frame 10. The wooden composite wall 40 is disposed between the upper beam 30U and the lower beam 30L. The upper end of the wooden composite wall 40 is joined to the upper beam 30U. Similarly, the lower end of the wooden composite wall 40 is joined to the lower beam 30L.

[0027] In addition, the wood composite wall 40 and the pair of pillars 20 are not joined, and openings 26 are formed between the wood composite wall 40 and the pair of pillars 20, respectively.

[0028] The wooden composite wall 40 has a plurality of (two in this embodiment) wall portions 42. The wall portions 42 are arranged adjacent to each other in the width direction of the wooden composite wall 40 (the material axis direction of the upper beam 30U and the lower beam 30L), and their ends are joined together.

[0029] 4, each wall section 42 has a pair of wooden paneling 44, a pair of end partition boards 50, a middle partition board 54, a plurality of filled concrete 60, and a plurality of unit wall reinforcement bars 70. The pair of wooden paneling 44, the pair of end partition boards 50, and the middle partition board 54 are formed from CLT (Cross Laminated Timber).

[0030] The pair of wooden surface panels 44, the pair of end partition panels 50, and the intermediate partition panel 54 are not limited to CLT, and may be formed of, for example, wooden panels such as LVL (Laminated Veneer Lumber) or laminated lumber. The intermediate partition panel 54 is not limited to wooden panels, and may be formed of metal panels or shaped steel.

[0031] As shown in FIG. 1, the pair of wooden panel members 44 are formed in a rectangular shape when viewed in the thickness direction (out-of-plane direction of the frame 10), and are disposed across the lower surface of the upper beam 30U and the upper surface of the lower beam 30L.

[0032] 4, a pair of wooden panel boards 44 are arranged facing each other in the out-of-plane direction (arrow Y direction) of the frame 10 with a gap between them in the out-of-plane direction. The pair of wooden panel boards 44 are connected by a pair of end partition plates 50 and a middle partition plate 54. The end partition plates 50 and the middle partition plate 54 are examples of partition plates.

[0033] The pair of end partition plates 50 are disposed on both sides in the width direction (arrow X direction) of the pair of wooden surface materials 44. The pair of end partition plates 50 are the same height as the pair of wooden surface materials 44, and span from the lower end to the upper end of the pair of wooden surface materials 44. The pair of end partition plates 50 are disposed opposite each other in the width direction of the pair of wooden surface materials 44.

[0034] Each end partition plate 50 is disposed across the widthwise ends 44E of the pair of wooden surface materials 44. The inner surfaces 50S of each end partition plate 50 are placed on the end faces of the ends 44E of the pair of wooden surface materials 44 and are fixed to the end faces with wood screws 46. This allows the pair of end partition plates 50 to connect the ends 44E of the pair of wooden surface materials 44 to each other.

[0035] The multiple wall sections 42 are arranged with their respective wooden surface materials 44 lined up in the width direction. In other words, the wooden composite wall 40 has multiple pairs of wooden surface materials 44 lined up in the material axis direction of the upper beam 30U and the lower beam 30L. Adjacent wall sections 42 are arranged with their respective end partition plates 50 overlapping each other. The overlapping end partition plates 50 are joined via a pair of connecting plates 52.

[0036] The pair of connecting plates 52 are disposed on both sides in the width direction (outside the plane of the frame 10) of the overlapping end partition plates 50. The pair of connecting plates 52 are also the same height as the pair of wooden surface materials 44, and extend from the lower end to the upper end of the end partition plate 50.

[0037] Each connecting plate 52 is disposed across the end face in the width direction of the overlapped end partition plates 50, and is fixed to the end face with a wood screw 46. In this way, the overlapped end partition plates 50 are joined by the pair of connecting plates 52.

[0038] The intermediate partition plate 54 is disposed between the pair of wooden surface materials 44. The intermediate partition plate 54 is also disposed between the pair of end partition plates 50, and faces each of the pair of end partition plates 50. The intermediate partition plate 54 is of the same height as the pair of wooden surface materials 44, and spans from the lower end to the upper end of the pair of wooden surface materials 44.

[0039] The middle partition plate 54 is disposed across the inner surfaces (opposing surfaces) 44S of the pair of wooden surface materials 44. In addition, the end faces of the middle partition plate 54 are overlapped with the inner surfaces 44S of the pair of wooden surface materials 44, and are fixed to the inner surfaces 44S with wood screws 46. The middle partition plate 54 and the pair of end partition plates 50 divide the space between the pair of wooden surface materials 44 into multiple (two) filling spaces R in the material axis direction of the upper beam 30U and the lower beam 30L.

[0040] At least one filling space R can be formed between a pair of wooden surface materials 44.

[0041] The multiple filling spaces R are each filled with filling concrete 60. The filling concrete 60 is filled from the lower end to the upper end of the filling spaces R. Furthermore, unit wall reinforcement 70 is embedded in each of the filling concrete 60.

[0042] The unit wall reinforcement 70 has a pair of vertical reinforcement 72 and multiple horizontal reinforcement 74, and is arranged in each of the multiple filling spaces R. The pair of vertical reinforcement 72 extends in the vertical direction and is arranged at an interval in the horizontal direction of the wood composite wall 40. The pair of vertical reinforcement 72 is connected by multiple horizontal reinforcement 74.

[0043] The horizontal reinforcements 74 extend in the width direction of the wood composite wall 40 and are spaced apart in the vertical direction. Each horizontal reinforcement 74 is disposed across a pair of vertical reinforcements 72 and is joined to the pair of vertical reinforcements 72 by a tie wire, welding, or the like (not shown). The unit wall reinforcements 70 reinforce the filled concrete 60.

[0044] 2, the filled concrete 60 and the upper beam 30U are joined via a joint reinforcing bar 80U. The lower end of the joint reinforcing bar 80U is embedded in the upper part of the filled concrete 60. Meanwhile, the upper end of the joint reinforcing bar 80U is embedded in the upper beam 30U. The upper end of the joint reinforcing bar 80U is bent in an L-shape along the material axis direction of the upper beam 30U.

[0045] As shown in Fig. 3, the filled concrete 60 and the lower beam 30L are joined via a joint reinforcing bar 80L. The upper end side of the joint reinforcing bar 80L is embedded in the lower part of the filled concrete 60. Meanwhile, the lower end side of the joint reinforcing bar 80L is embedded in the lower beam 30L. The lower end side of this joint reinforcing bar 80L is bent in an L-shape along the material axis direction of the lower beam 30L.

[0046] (action) Next, the operation of this embodiment will be described.

[0047] According to this embodiment, the frame 10 has a pair of columns 20, and an upper beam 30U and a lower beam 30L installed on the pair of columns 20. A pair of wooden surface materials 44 are arranged between the upper beam 30U and the lower beam 30L.

[0048] The pair of wooden surface materials 44 face each other in the out-of-plane direction of the frame 10. The pair of wooden surface materials 44 are connected by a pair of end partition plates 50 and a middle partition plate 54. The pair of end partition plates 50 and the middle partition plate 54 divide the space between the pair of wooden surface materials 44 into multiple filled spaces R in the material axis direction of the upper beam 30U and the lower beam 30L.

[0049] The multiple filled spaces R are filled with filled concrete 60 that is joined to the upper beams 30U and the lower beams 30L. In this way, the wood composite wall 40 is formed.

[0050] Here, the pair of wooden surface panels 44, the pair of end partition boards 50, and the middle partition board 54 function as a formwork for the filling concrete 60. This eliminates the need to temporarily install or remove a formwork for the filling concrete 60. This therefore improves the design while improving the ease of construction of the wooden composite wall 40.

[0051] Furthermore, by connecting the pair of wooden surface panels 44 with the pair of end partition plates 50 and the middle partition plate 54, it is possible to prevent the pair of wooden surface panels 44 acting as a formwork from opening when filling with the filling concrete 60. Therefore, for example, a separator or the like for connecting the pair of wooden surface panels 44 can be omitted, improving workability.

[0052] Furthermore, the filled concrete 60 is joined to the upper beams 30U and the lower beams 30L. As a result, during an earthquake, seismic force (horizontal force) is transmitted from the upper beams 30U and the lower beams 30L to the filled concrete 60. The seismic force transmitted to the filled concrete 60 is transmitted to the pair of wooden surface materials 44 via the pair of end partition plates 50 and the middle partition plate 54. In this way, during an earthquake, not only the filled concrete 60 but also the pair of wooden surface materials 44 can resist seismic force, improving the earthquake resistance performance of the wooden composite wall 40.

[0053] In particular, the wooden surface material 44 of this embodiment is formed of CLT, which has high rigidity (surface rigidity). This further improves the earthquake resistance performance of the wooden composite wall 40.

[0054] Furthermore, connecting rebars 80U, 80L are embedded in the upper and lower parts of the multiple filled concrete structures 60. By connecting each filled concrete structure 60 to the upper beams 30U and the lower beams 30L with these connecting rebars 80U, 80L, seismic force can be transmitted from the upper beams 30U and the lower beams 30L to the filled concrete structures 60 more reliably.

[0055] In addition, by filling each of the multiple filling spaces R with the filling concrete 60 and dividing the filling concrete 60 into multiple pieces, the multiple filling concretes 60 resist earthquake forces like bending columns. As a result, in this embodiment, the bending deformation of the wood composite wall 40 is superior compared to when the multiple filling concretes 60 are integrated, and the toughness of the wood composite wall 40 is improved. Therefore, the deformation performance of the wood composite wall 40 can be improved.

[0056] In addition, a release agent may be applied to the inner surfaces 50S of the pair of end partition plates 50 and the surfaces (inner surfaces) 54S on both sides of the middle partition plate 54 to facilitate peeling of the filled concrete 60 from these inner surfaces 50S, 54S during an earthquake. This can further improve the toughness of the wood composite wall 40.

[0057] The composite wood wall 40 also has a plurality of wall sections 42. Each wall section 42 has a pair of wood surface materials 44. In other words, the composite wood wall 40 has a plurality of pairs of wood surface materials 44 aligned in the material axis direction of the upper beam 30U and the lower beam 30L. The plurality of pairs of wood surface materials 44 are joined in a state where the end partition plates 50 provided at each end are overlapped with each other.

[0058] In this way, by providing end partition panels 50 at the ends of a pair of wooden paneling 44 in adjacent wall sections 42, the wooden composite wall 40 can be easily expanded as needed.

[0059] (Modification) Next, a modification of the above embodiment will be described.

[0060] In the modification shown in Fig. 5, a plurality of wood screws 62 are provided on the inner surface 44S of the pair of wooden surface materials 44. The plurality of wood screws 62 protrude from the inner surface 44S of the pair of wooden surface materials 44 and are embedded in the filled concrete 60. This allows the shear force between the pair of wooden surface materials 44 and the filled concrete 60 to be transmitted via the plurality of wood screws 62. This improves the earthquake resistance of the wooden composite wall 40.

[0061] The wood screws 62 are an example of shear force transmission parts. Also, the inner surface 44S of the wooden face material 44 may be provided with shear force transmission parts such as ribs, projections and recesses, etc., instead of the wood screws 62.

[0062] 5, metal plates 90 are attached to the inner surfaces 50S of the pair of end partition plates 50. Each metal plate 90 is formed of a steel plate or the like. Each metal plate 90 is bent into a C-shape along the inner surface 50S of the end partition plate 50 and the inner surfaces 44S of the pair of wooden surface materials 44 in a plan cross-sectional view.

[0063] Moreover, metal plates 90 are attached to the surfaces (inner surfaces) 54S on both sides of the middle partition plate 54. Each metal plate 90 is formed of a steel plate or the like. Moreover, each metal plate 90 is bent into a C-shape along the inner surface 54S of the middle partition plate 54 and the inner surfaces 44S of the pair of wooden surface materials 44 in a plan cross-sectional view.

[0064] A release agent is applied to the surface of the metal plate 90 to which the filled concrete 60 is attached. This makes it easier for the filled concrete 60 to peel off from the pair of end partition plates 50 and the middle partition plate 54 during an earthquake. This further increases the toughness of the wood composite wall 40.

[0065] In the above embodiment, the pair of pillars 20 are not joined to the wooden composite wall 40. However, for example, as in a modified example shown in FIG. 6, the wooden composite wall 40 may be joined to the pillars 20.

[0066] Specifically, in the wooden composite wall 40, an end partition plate 50 (see FIG. 4) is not provided at one end 44E of the pair of wooden panel materials 44 facing the pillar 20, and the end 44E abuts against the side surface 20S of the pillar 20. Also, a pair of positioning members 100 are provided on the outer surface of the one end 44E of the pair of wooden panel materials 44. The pair of positioning members 100 are formed from wooden boards such as CLT, and are arranged along the one end 44E of the pair of wooden panel materials 44.

[0067] The pair of positioning members 100 are fixed to the side surface 20S of the pillar 20 with a plurality of screws (concrete screws) 102 or the like. The pair of positioning members 100 prevent the one ends 44E of the pair of wooden surface materials 44 from opening when filling concrete 60 is filled between the pair of wooden surface materials 44.

[0068] In addition, a plurality of anchor bars 110 are provided on the side surface 20S of the column 20. The anchor bars 110 are arranged at intervals in the vertical direction. The anchor bars 110 protrude from the side surface 20S of the column 20 and are embedded in the filled concrete 60. These anchor bars 110 are connected to the horizontal bars 74 of the unit wall bars 70, for example, by lap joints or the like.

[0069] By joining the pillar 20 and the filled concrete 60 via the anchor bars 110 in this manner, the earthquake resistance of the wood composite wall 40 can be improved.

[0070] In the modified example shown in FIG. 6, the anchor 110 is a post-installed anchor, but in the case of a new building, for example, the anchor may be embedded integrally with the pillar 20 when the pillar 20 is installed.

[0071] 7, one end 44E of a pair of wooden surface materials 44 may be connected via a separator 120 instead of a pair of positioning members 100. This separator 120 prevents the one end 44E of the pair of wooden surface materials 44 from opening when filling concrete 60 is filled between the pair of wooden surface materials 44.

[0072] Moreover, the wooden composite wall 40 in the above embodiment has a plurality of wall portions 42. However, it is sufficient that the wooden composite wall 40 has at least one wall portion 42.

[0073] In the above embodiment, the pair of wooden paneling 44 is connected by a pair of end partition plates 50 and a middle partition plate 54. However, the middle partition plate 54 may be provided as necessary and may be omitted as appropriate. Also, as described above, when joining the wooden composite wall 40 to the pillar 20, the end partition plate 50 may also be omitted. In other words, the pair of wooden paneling 44 may be connected by at least one of the end partition plate 50 and the middle partition plate 54.

[0074] In the above embodiment, the end partition plate 50 is joined in an overlapping state to the end faces of the end portions 44E of the pair of wooden surface materials 44. However, similar to the intermediate partition plate 54, the end partition plate 50 may be disposed between the end portions 44E of the pair of wooden surface materials 44, and joined in an overlapping state to the inner surfaces 44S of the end portions 44E of the pair of wooden surface materials 44.

[0075] In the above embodiment, the unit wall reinforcement 70 and the joint reinforcement bars 80U, 80L are embedded in the filled concrete 60. However, the unit wall reinforcement 70 and the joint reinforcement bars 80U, 80L may be provided as necessary and may be omitted as appropriate.

[0076] Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and one embodiment and various modified examples may be used in appropriate combination, and it is of course possible to implement the present invention in various forms without departing from the gist of the present invention. [Explanation of symbols]

[0077] 10 Frame 20 Pillars 30U Upper beam (upper beam) 30L Lower beam (lower beam) 44 Wood-based surface materials 50 End partition plate (partition plate) 54 Intermediate partition plate (partition plate) 60 Filled Concrete 80L Joint Reinforcement Bar 80U Joint Rebar R filling space Arrow X: Beam material axis direction Arrow Y: Out-of-plane direction of the frame

Claims

1. A frame having a pair of columns and upper and lower beams installed on the pair of columns; A pair of wooden surface materials are arranged between the upper and lower beams and face each other in an out-of-plane direction of the frame; A partition plate that connects a pair of the wooden surface materials and divides the space between the pair of the wooden surface materials into a plurality of filled spaces in the material axis direction of the beam; Filled concrete is filled into each of the plurality of filling spaces and joined to the upper and lower beams; A wood composite wall structure.

2. The beam is provided with a plurality of pairs of the wooden surface materials arranged in the material axis direction of the beam, A plurality of pairs of the wooden surface materials are joined in a state where the partition plates provided at each end are overlapped with each other. The wood composite wall structure according to claim 1.

3. A joint reinforcing bar is embedded in the filled concrete and connects the filled concrete to the beam. The wood composite wall structure according to claim 1 or 2.

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