JP2023104656A - Wood covered rc member and its formation method - Google Patents

Abstract

To provide a wood-covered RC member and its formation method that eliminate need for stain countermeasures.SOLUTION: A wood-covered RC member 50 is made by attaching a wood face material 20 to a surface of a reinforced concrete RC member 10 that has been pre-constructed or pre-manufactured, to cover the RC member 10. A method of forming the wood-covered RC member is attaching the wood face material 20 to the surface of a reinforced concrete RC member 10 that has been pre-constructed or pre-manufactured, and covering the RC member 10.SELECTED DRAWING: Figure 1

Description

The present invention relates to a wood-coated RC member and method of forming the same.

BACKGROUND ART In the field of construction, technology development that effectively utilizes wooden materials is actively being carried out in view of the recent increase in efforts to reduce the burden on the environment and the active efforts to be environmentally friendly. The main technology that utilizes this wooden material is the design and construction of wooden buildings.

Buildings include RC (Reinforced Concrete) and SRC (Steel Reinforced Concrete) structures. Realize high-rise buildings.

Therefore, regarding structural members of buildings, structural members having the strength and rigidity of RC members while effectively utilizing the above-described wooden materials are desired.

Here, in Patent Document 1, a hollow pillar having a hollow space is manufactured by joining three or more long rectangular wooden boards to each other, reinforcing bars are arranged in the hollow space, and concrete is filled. and a method for manufacturing the surface wooden pillar has been proposed. In this manufacturing method, a hollow column made of a wooden plate functions as a formwork for filling with concrete.

Japanese Patent Application Laid-Open No. 2021-67026

According to the surface wooden pillar and the manufacturing method thereof described in Patent Document 1, it is possible to manufacture a pillar having the strength and rigidity of an RC member while effectively utilizing the wooden material. However, since a hollow pillar made of wooden boards is used as a formwork and filled with concrete, there is an extremely high possibility that the concrete will stick to the surface of the wooden material and stain it. In order to function as a design material that imparts designability, it is necessary to perform a post-treatment to wash off stains adhering to the surface. Alternatively, in order to prevent the adhesion of such dirt, it is necessary to take measures such as curing the wood material in advance to prevent adhesion of concrete. be.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wood-covered RC member that eliminates the need for countermeasures against contamination and a method for forming the same.

In order to achieve the above object, one aspect of the wood-covered RC member according to the present invention is
A wooden face member is attached to the surface of a previously constructed or previously manufactured RC member made of reinforced concrete to cover the RC member.

According to this aspect, by attaching the wooden face material to the surface of the RC member made of reinforced concrete that has been preliminarily constructed or manufactured in advance, the RC member can be effectively utilized while eliminating the need for countermeasures against stains. It becomes a building component with the strength and rigidity of

Here, since the wooden face material that constitutes the wood-covered RC member also has a certain degree of rigidity, the wooden face material functions as a structural material and can also be used as a design material that imparts the appearance design that wood brings out. Function.

In addition, "Pre-constructed reinforced concrete RC members" includes RC columns, RC beams, RC walls, RC slabs, etc. Includes existing RC members that are years to decades old. On the other hand, the "previously manufactured RC member made of reinforced concrete" includes precast concrete members (precast RC members) manufactured in a factory or the like. Furthermore, in this specification, the term "RC member" includes not only the literal RC member but also the SRC member.

In another aspect of the wood-coated RC member according to the present invention,
The wooden face material is fixed to the surface of the RC member with an adhesive.

According to this aspect, the wooden face material is fixed to the surface of the RC member via an adhesive, so that the wood-covered RC member is excellent in manufacturability or workability.

In another aspect of the wood-coated RC member according to the present invention,
The wooden face member is further fixed to the RC member by an anchor,
The anchor is embedded at a position that does not interfere with the main reinforcement and the shear reinforcement embedded in the RC member.

According to this aspect, since the wooden face material is fixed to the RC member by the anchor in addition to the adhesive, a wood-covered RC member with high fixing strength between the RC member and the wooden face material is obtained.

In another aspect of the wood-coated RC member according to the present invention,
The wood face material includes an inner wood face material on the RC member side and an outer wood face material laminated on the inner wood face material,
The inner wooden surface member is fixed to the RC member with an adhesive and an anchor, and the anchor is embedded at a position that does not interfere with the main reinforcement and shear reinforcement embedded in the RC member,
The outer wooden surface member is fixed to the inner wooden surface member with an adhesive.

According to this aspect, the outer wooden surface member is fixed via the adhesive to the inner wooden surface member fixed to the RC member by the adhesive and the anchor, so that the anchor head is exposed to the outside. This can be prevented with a wooden surface material, and deterioration of the appearance design of the wood-coated RC member can be suppressed.

In another aspect of the wood-coated RC member according to the present invention,
The pre-constructed RC members are characterized by being RC columns or RC beams constructed on-site.

According to this aspect, since the wood-covered RC member is an RC column or RC beam constructed on site, for example, an existing RC column or RC beam can be renewed in a manner having a woody appearance design. It becomes a member or a beam member. In old RC pillars, etc., there are often cases where cracks occur on the surface, but by attaching a wooden face material to the surface afterward, it will lead to the blinding of cracks, etc. on the surface of RC pillars, etc. .

In another aspect of the wood-coated RC member according to the present invention,
The pre-manufactured RC members are characterized by being any one of PCa columns, PCa joints, and PCa beams, which are PCa members made of precast concrete.

According to this aspect, the PCa members such as pre-fabricated PCa columns, PCa joints, PCa beams, etc. are post-attached with wooden face materials, so that anti-fouling measures are unnecessary and the PCa members can be efficiently manufactured. A wood-covered RC member is fabricated with a wood panel and a wood panel.

In addition, one aspect of the method for forming a wood-covered RC member according to the present invention is
It is characterized in that the surface of a reinforced concrete RC member that has been preliminarily constructed or manufactured in advance is covered with a wooden surface material.

According to this aspect, the wood-coated RC member can be efficiently constructed or manufactured without the need for countermeasures against staining by attaching the wooden face material to the surface of the previously constructed or previously manufactured reinforced concrete RC member afterward. can do.

Another aspect of the method for forming a wood-covered RC member according to the present invention is
The wooden surface material is fixed to the surface of the RC member with an adhesive.

According to this aspect, by fixing the wooden surface material to the surface of the RC member via an adhesive, the wood-covered RC member can be constructed or manufactured more efficiently.

Another aspect of the method for forming a wood-covered RC member according to the present invention is
The wooden face member is further fixed to the RC member by an anchor, and at that time, the anchor is embedded in a position that does not interfere with the main reinforcement and shear reinforcement embedded in the RC member. .

According to this aspect, by adding the adhesive to the RC member and further fixing the wooden face member with the anchor, it is possible to construct or manufacture a wood-covered RC member with high fixing strength between the RC member and the wooden face member.

In another aspect of the method for forming a wood-covered RC member according to the present invention,
The wooden face member includes an inner wooden face member on the side of the RC member RC member, and an outer wooden face member laminated on the inner wooden face member,
The inner wooden panel is fixed to the RC member with an adhesive and an anchor, and at that time, the anchor is embedded in advance at a position that does not interfere with the main reinforcement and the shear reinforcement embedded in the RC member, or , buried by post-construction,
After fixing the inner wooden surface member to the RC member, the outer wooden surface member is fixed to the inner wooden surface member with an adhesive.

According to this aspect, the inner wooden surface member is fixed to the RC member with the adhesive and the anchor, and the outer wooden surface member is fixed to the inner wooden surface member with the adhesive, thereby preventing the anchor head from being exposed. This can be prevented by the outer wooden surface material, and the deterioration of the appearance design of the wood-coated RC member can be suppressed.

Here, when anchors are to be driven into RC members that have already been constructed or manufactured, the positions of the main reinforcing bars and shear reinforcing bars are specified based on the design cover and bar arrangement pitch, etc., and these reinforcing bars and Anchors are driven at positions that do not interfere. On the other hand, when RC members are manufactured as PCa members in a factory, etc., concrete is placed after anchors are installed when arranging main reinforcement and shear reinforcing bars, and RC members are manufactured with anchors. be done. Therefore, as this anchor, it is possible to apply an anchor that is embedded inside the RC member and has a headed end, or an anchor that straddles a pair of opposing side surfaces of the RC member. It becomes possible to attach a wooden face material with a high anchor.

As can be understood from the above description, according to the wood-covered RC member and the method for forming the same according to the present invention, it is possible to provide a wood-covered RC member and the method for forming the same that do not require countermeasures against staining.

1 is a perspective view of an example of a wood-covered RC member according to the first embodiment; FIG. FIG. 6 is a perspective view of an example of a wood-covered RC member according to the second embodiment, and a process diagram of an example of a method for forming the wood-covered RC member according to the first embodiment. FIG. 10 is a vertical cross-sectional view of an example of a wood-covered RC member according to a second embodiment; FIG. 11 is a vertical cross-sectional view of an example of a wood-covered RC member according to a third embodiment; FIG. 11 is a vertical cross-sectional view of an example of a wood-covered RC member according to a fourth embodiment; FIG. 11 is a perspective view of an example of a wood-covered RC member according to the fifth embodiment, and a process diagram of an example of a method for forming the wood-covered RC member according to the second embodiment. FIG. 4 is a process diagram of an example of a method for forming a wood-covered RC member according to the first embodiment; FIG. 6A is a process diagram of an example of the method for forming the wood-covered RC member according to the first embodiment, following FIG. 6A; FIG. 10 is a process diagram of an example of a method for forming a wood-covered RC member according to the second embodiment; FIG. 7A is a process diagram of an example of the method for forming the wood-covered RC member according to the second embodiment, following FIG. 7A;

An example of a wood-covered RC member according to an embodiment and a method of forming the same will be described below with reference to the accompanying drawings. In addition, in the present specification and drawings, substantially the same components may be denoted by the same reference numerals, thereby omitting duplicate descriptions.

[Wood-covered RC member according to the first embodiment]
First, an example of the wood-covered RC member according to the first embodiment will be described with reference to FIG. Here, FIG. 1 is a perspective view of an example of the wood-covered RC member according to the first embodiment.

The wood-coated RC member 50 is a reinforced concrete slender rectangular parallelepiped RC member 10 that is pre-constructed or pre-fabricated, and has a slender rectangular parallelepiped RC member 10. The wooden surface members 20 are attached to the four side surfaces of the RC member 10 to cover the entire side surface of the RC member 10. It consists of The RC members 10 are existing RC columns and RC beams, or precast concrete columns, beams, and joints (PCa columns, PCa beams, PCa joints) manufactured in a factory or the like. The existing RC pillars and the like are, for example, RC pillars that constitute an old RC building. Here, the PCa member may be a wide RC wall, RC slab (floor), or the like. .

The RC column 10 has a plurality of main reinforcements 15 and a plurality of shear reinforcements 16 surrounding each main reinforcement 15 . Here, the shear reinforcing bars 16 of the RC column 10 are ties, and when the RC member 10 is an RC beam, the shear reinforcing bars are stirrups or stirrups.

Various surface materials such as solid wood, laminated wood, laminated veneer lumber (LVL), and plywood can be applied to the wooden surface material 20 .

A wood-covered RC member 50 is formed by fixing the wooden surface material 20 to each of the four side surfaces of the RC column 10 via the adhesive 30 . Here, when the RC member 10 is columnar, for example, a thin piece of wooden surface material is wound around the side surface of the RC member 10 to form a cylindrical shape, thereby covering the RC member 10 .

Adhesives include epoxy adhesives with excellent water resistance, moisture resistance, alkali resistance, heat resistance, and abrasion resistance, acrylic adhesives with fast curing speed, and silicone adhesives with flexibility and impact resistance. An adhesive, an inexpensive vinyl acetate-based adhesive, or the like is applied.

According to the wood-coated RC member 50, the wooden surface material 20 is attached via the adhesive 30 to the surface of the RC member 10 made of reinforced concrete, which is preliminarily constructed or prefabricated. , the wooden material is effectively used, and the building pillar member and beam member having the strength and rigidity of the RC member 10 are obtained.

In addition, in the case where the RC member 10 is an RC column or the like constituting an old RC building, the cracks occurring on the surface of the column are hidden by the wooden surface material 20, and the appearance design of the timber is imparted to the column. can be renewed as

Furthermore, since the RC member 10 is located inside, in the event of a fire, although the outer wooden surface material is burned and carbonized, the internal RC member stops burning, thereby suppressing the collapse of the building. . In the formation of the wood-coated RC member 50, when wood is harvested and used as the wood surface material, by planting the wood equivalent to the harvested amount, the amount of carbon retained in the wood used can be substantially matched. CO ₂ can be reduced, which leads to reduction of environmental impact load.

[Wood-covered RC member according to the second embodiment]
Next, an example of the wood-covered RC member according to the second embodiment will be described with reference to FIGS. 2A and 2B. Here, FIG. 2A is a perspective view of an example of the wood-covered RC member according to the second embodiment, and FIG. 2B is a longitudinal sectional view of an example of the wood-covered RC member according to the second embodiment. Here, FIG. 2A is also a process drawing of an example of a method for forming a wood-covered RC member according to the first embodiment described below.

The wood-covered RC member 50A is embedded in the RC member 10 in addition to the four wooden surface members 20A adhered to the four side surfaces of the rectangular parallelepiped RC member 10 via the adhesive 30 respectively. It is different from the wood-covered RC member 50 in that the wooden surface member 20A is fixed by the anchors 40 .

The wooden surface member 20A has a plurality of counterbore grooves 25 on its outer surface, and the anchors 40 are post-installed through the counterbore grooves 25 and screwed or driven into the RC member 10 .

The anchor 40 has a shaft portion 41 with a sharp tip and a head portion 42 at the end of the shaft portion 41. The shaft portion 41 is embedded at a position where it does not interfere with the main reinforcement 15 or the shear reinforcing reinforcement 16 of the RC member 10. , the head 42 is fixed to the groove bottom of the counterbore groove 25 .

The filling material 26 that hides the head portion 42 of the anchor 40 is stuffed in the counterbore groove 25, thereby preventing the head portion 42 from being exposed and suppressing deterioration of the appearance design.

According to the wood-covered RC member 50A, in addition to exhibiting the same effects as the above-described wood-covered RC member 50, the wooden face member 20A is fixed to the RC member 10 by the adhesive 30 and the anchor 40, thereby enabling RC A wood-covered RC member having high fixing strength between the member 10 and the wooden face member 20 is formed.

[Wood-covered RC member according to the third embodiment]
Next, an example of the wood-covered RC member according to the third embodiment will be described with reference to FIG. Here, FIG. 3 is a longitudinal sectional view of an example of the wood-covered RC member according to the third embodiment.

The wood-covered RC member 50B differs from the wood-covered RC member 50A in that it has an anchor 40A having heads 42 and 43 at both ends of a shaft portion 41. As shown in FIG.

For example, the inner head portion 43 embedded in the RC member 10 is manufactured integrally with the shaft portion 41, and the outer head portion for fixing the wooden surface member 20A is attached to the shaft portion 41 freely. It is part 42 .

The RC member 10 in the illustrated example is, for example, a PCa column or the like, and the RC member 10 is first manufactured with the head portion 43 and the shaft portion 41 embedded during manufacture in a factory or the like. The wooden surface material 20A is not used as a formwork when manufacturing the RC member 10, but a formwork for placing concrete is used to manufacture the RC member 10. After that, the formwork is removed and the wooden surface is formed. The wood-covered RC member 50B is manufactured by the method of attaching the wood 20A. This manufacturing method eliminates the need to take countermeasures against staining when manufacturing the wooden surface material 20A, and the wooden surface material 20A is retrofitted to the "previously manufactured RC member 10".

The formwork used for placing concrete is removed, and the end portions of the shaft portions 41 of the plurality of anchors 40A are exposed from the side surfaces of the manufactured RC member 10 . After attaching the wooden surface member 20A having the counterbore grooves 25 at positions corresponding to the respective shaft portions 41 to the side surface of the RC member 10 via the adhesive 30, the shaft portions 41 protruding inside the counterbore grooves 25. By screwing the threaded hole of the retrofitted head 42 into the threaded groove at the end of the wooden face member 20A, the wooden face member 20A is fixed to the RC member 10 by the adhesive 30 and the anchor 40A. As with the wood-covered RC member 50A, the counterbore grooves 25 are filled with the filler material 26 to prevent the retrofitted head portion 42 from being exposed, thereby suppressing deterioration of the appearance design.

According to the wood-covered RC member 50B, in addition to exhibiting the same effects as the wood-covered RC member 50A described above, the head 43 is also provided at the inner end of the anchor 40A embedded in the RC member 10. As a result, a wood-covered RC member having a higher fixing strength between the RC member 10 and the wooden surface member 20A is formed by the anchor 40A having a higher pull-out resistance.

[Wood-covered RC member according to the fourth embodiment]
Next, an example of the wood-covered RC member according to the fourth embodiment will be described with reference to FIG. Here, FIG. 4 is a longitudinal sectional view of an example of the wood-covered RC member according to the fourth embodiment.

In the wood-covered RC member 50C, the shaft portion 41A of the anchor 40B extends across the opposite side surfaces of the RC member 10, and the anchor 40B is inserted into the counterbore groove 25 of the wooden surface member 20A on both side surfaces. It differs from the wood-covered RC members 50A and 50B in that both ends protrude, and retrofitted heads 44 are attached to both ends.

The illustrated RC member 10 is manufactured by installing a rectangular frame-shaped form (not shown) so as to surround the main reinforcement 15 and the shear reinforcement 16, penetrating the shaft 41A of the anchor 40B through the opposite form, and forming the mold. The RC member 10 is manufactured by fixing the back surface of the form with a separator (not shown) using the ends of the shafts 41A protruding to the outside of the frame, and filling the form with concrete.

The ends of the common shaft portions 41A protrude from the opposing side surfaces of the RC member 10 manufactured by removing the formwork for placing concrete. A plurality of such shaft portions 41</b>A protrude from each side surface of the RC member 10 . Then, after attaching the wooden surface member 20A having the counterbore groove 25 at the position corresponding to the shaft portion 41A to the side surface of the RC member 10 via the adhesive 30, the shaft portion projecting inside the counterbore groove 25 By screwing the threaded hole of the retrofitted head 44 into the threaded groove at the end of 41A, the wooden surface member 20A is fixed to the RC member 10 with the adhesive 30 and the anchor 40B. As with the wood-covered RC member 50A, the counterbore groove 25 is filled with the filler material 26 to prevent the retrofitted head portion 44 from being exposed, thereby suppressing deterioration of the appearance design.

According to the wood-covered RC member 50C, in addition to having the same effects as the above-described wood-covered RC member 50A, the wooden surface materials 20A are attached to both side surfaces of the RC member 10 by the anchors 40B that span the opposite side surfaces of the RC member 10. is fixed, a wood-covered RC member having a higher fixing strength between the RC member 10 and the wooden surface member 20A is formed by the anchor 40B having a higher pull-out resistance.

[Wood-covered RC member according to the fifth embodiment]
Next, an example of the wood-covered RC member according to the fifth embodiment will be described with reference to FIG. Here, FIG. 5 is a perspective view of an example of the wood-covered RC member according to the fifth embodiment. Here, FIG. 5 is also a process drawing of an example of a method for forming a wood-covered RC member according to the second embodiment described below.

The wood-covered RC member 50D differs from the wood-covered RC members 50A, 50B, and 50C in that it has an inner wood surface member 20B on the RC member 10 side and an outer wood surface member 20C laminated on the inner wood surface member 20B. .

The inner wooden surface member 20B is fixed to the RC member 10 with an adhesive 30 and anchors 40A, like the wooden surface member 20A shown in FIG. Here, the inner wooden surface material 20B may be fixed to the RC member 10 only with the adhesive 30, like the wooden surface material 20 shown in FIG. It may be fixed by an adhesive 30 and an anchor 40 that is installed later, or the RC member 10 is attached to the RC member 10 by an anchor 40B and an adhesive 30 that straddle the opposing wooden surface material 20A in the same manner as the wooden surface material 20A shown in FIG. May be fixed.

The wood-covered RC member 50D is formed by fixing the outer wooden surface member 20C to the inner wooden surface member 20B fixed to the RC member 10 via a separate adhesive 30 .

According to the wood-covered RC member 50D, in addition to having the same effect as the above-described wood-covered RC member 50A and the like, the inner wooden surface member 20B is covered with the outer wooden surface member 20C, so that the anchor 40A Not only can the external wooden surface member 20C prevent the retrofitted head portion 42 from being exposed, but also the filling material is not exposed to the outside, thereby further suppressing deterioration of the appearance design of the wood-covered RC member.

[Method for Forming Wood-Covered RC Member According to First Embodiment]
Next, an example of a method for forming the wood-covered RC member according to the first embodiment will be described with reference to FIGS. 6A, 6B and 2A. Here, FIGS. 6A, 6B, and 2A are step diagrams of an example of the method for forming the wood-covered RC member according to the first embodiment, in order. Here, the wood-coated RC members 50A and 50D shown in FIGS. 2A and 5 will be taken up and the method of forming them will be described in detail.

The RC member 10 shown in FIG. 6A is an RC column of an existing rectangular parallelepiped building, and includes many cracks C on its surface. In other words, it is "precedingly constructed reinforced concrete RC member".

As shown in FIG. 6B, an adhesive 30 is applied to the four side surfaces of the RC member 10 to adhere the four wooden surface members 20A.

Next, the post-installed anchors 40 are screwed or driven into the RC member 10 through the counterbore grooves 25 provided in the wooden surface members 20A, thereby four wooden surface members 20A are attached to the RC member 10. is fixed, and the circumference of the RC member 10 is covered. Finally, by filling the counterbore grooves 25 with the filler material 26, the wood-covered RC member 50A shown in FIG. 2A is formed.

According to the forming method shown in the figure, it is possible to effectively use the wooden surface material 20A and construct the wood-covered RC member 50A with excellent appearance design while hiding the cracks C of the existing RC member 10.

[Method for Forming Wood-Covered RC Member According to Second Embodiment]
Next, an example of a method for forming a wood-covered RC member according to the second embodiment will be described with reference to FIGS. 7A, 7B and 5. FIG. Here, FIG. 7A, FIG. 7B, and FIG. 5 are step diagrams of an example of the method for forming the wood-covered RC member according to the second embodiment, in order.

As shown in FIG. 7A, in a factory or the like, a plurality of main reinforcing bars 15 and a plurality of shear reinforcing bars 16 for PCa columns are assembled, and a plurality of anchors 40A are arranged at positions where the main reinforcing bars 15 and shear reinforcing bars 16 do not interfere. Then, a rectangular formwork K is arranged. The formwork K has through holes K1 at positions corresponding to the respective anchors 40A. , the formwork K is fixed to the plurality of anchors 40A. A head portion 43 that is manufactured integrally with the shaft portion 41 is provided at the other end of the shaft portion 41 .

Next, concrete is placed inside the formwork K in the form of a rectangular frame, and after the concrete hardens, the retrofitted head 42 is removed from the shaft part 41, and the formwork K is demoulded. By removing the formwork K, shafts 41 of a plurality of anchors 40A protrude from the four side surfaces of the RC member 10, respectively.

An inner wooden surface member 20B having a counterbore groove 25 at a position corresponding to each protruding shaft portion 41 is prepared. The inner wooden surface member 20B is adhered to the side surface of the RC member 10 by inserting the end of the shaft portion 41 of the corresponding anchor 40A. Next, as shown in FIG. 7B, by screwing the retrofit head portion 42 to the end portion of the shaft portion 41 protruding into the counterbore groove 25, the RC member 10 is secured to the inner side by the adhesive 30 and the anchor 40A. The wooden surface material 20B is fixed.

Finally, a separate adhesive 30 is applied to the surface of the inner wooden surface member 20B, and the outer wooden surface member 20C is adhered to the inner wooden surface surrounding the four side surfaces of the RC member 10 as shown in FIG. A wood-covered RC member 50D is formed in which the face member 20B is further surrounded by the outer wooden face member 20C.

According to the forming method shown in the figure, since the inner wooden surface member 20B and the outer wooden surface member 20C are successively attached to the previously manufactured RC member 10, it is possible to effectively use the wooden surface members while manufacturing the RC member 10. The wood-covered RC member 50D can be manufactured by an efficient forming method that does not require countermeasures against contamination of the wooden surface material.

Other embodiments may be possible in which other components are combined with the above-described configurations, etc., and the present invention is not limited to the configurations shown here. Regarding this point, it is possible to change without departing from the gist of the present invention, and it can be determined appropriately according to the application form.

10: RC member (RC column)
15: Main reinforcement 16: Shear reinforcement 20, 20A: Wooden face material 20B: Inner wood face material 20C: Outer wood face material 25: Counterbore groove 26: Filling material 30: Adhesive 40, 40A, 40B: Anchor 41, 41A: Axle 42: Retrofitted head (head)
43: Head 44: Retrofitted head (head)
50, 50A, 50B, 50C, 50D: Wood-coated RC member K: Formwork C: Crack

Claims (10)

A wood-covered RC member, characterized in that a wooden face member is attached to the surface of a pre-constructed or pre-fabricated reinforced concrete RC member to cover the RC member. 2. A wood-covered RC member according to claim 1, wherein said wooden face member is fixed to the surface of said RC member by means of an adhesive. The wooden face member is further fixed to the RC member by an anchor,
3. The RC member covered with wood according to claim 2, wherein the anchor is embedded at a position that does not interfere with the main reinforcement and the shear reinforcement embedded in the RC member. The wood face material includes an inner wood face material on the RC member side and an outer wood face material laminated on the inner wood face material,
The inner wooden surface member is fixed to the RC member with an adhesive and an anchor, and the anchor is embedded at a position that does not interfere with the main reinforcement and shear reinforcement embedded in the RC member,
2. A wood-covered RC member according to claim 1, wherein said outer wood panel is fixed to said inner wood panel with an adhesive. A wood-covered RC member according to any one of claims 1 to 4, characterized in that said pre-constructed RC member is a field-constructed RC column or RC beam. 5. Any one of claims 1 to 4, characterized in that the pre-manufactured RC member is one of PCa columns, PCa joints, and PCa beams, which are PCa members made of precast concrete. A wood-coated RC member according to . 1. A method of forming a wood-covered RC member, comprising: attaching a wooden face member to the surface of a pre-constructed or pre-fabricated reinforced concrete RC member to cover the RC member. 8. The method of forming a wood-covered RC member according to claim 7, wherein the wooden face member is fixed to the surface of the RC member with an adhesive. The wooden face member is further fixed to the RC member by an anchor, and at that time, the anchor is embedded in a position that does not interfere with the main reinforcement and shear reinforcement embedded in the RC member. 9. A method of forming a wood-coated RC member according to claim 8. The wooden face member includes an inner wooden face member on the side of the RC member RC member, and an outer wooden face member laminated on the inner wooden face member,
The inner wooden panel is fixed to the RC member with an adhesive and an anchor, and at that time, the anchor is embedded in advance at a position that does not interfere with the main reinforcement and the shear reinforcement embedded in the RC member, or , buried by post-construction,
8. The wood-covered RC member according to claim 7, wherein after fixing the inner wooden surface member to the RC member, the outer wooden surface member is fixed to the inner wooden surface member with an adhesive. Forming method.

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