Building design and structure

Abstract

To provide a design surface structure for a building that suppresses cracking and peeling of plastering materials. [Solution] The floor structure 10 of a high-rise building 5 comprises a resin body 26 attached to the surface side of a base material 22 and containing fibrous members 24 in at least a portion thereof, and a plastering material 28 attached to the surface side of the resin body 26. This allows for the dispersion of internal stresses in the building's design surface structure and the mitigation of local stress concentrations. As a result, cracking and peeling of the plastering material 28 can be suppressed.

Description

[Technical Field]

[0001] This invention relates to the design structure of a building. [Background technology]

[0002] In the design surface structure of a building, it is known to apply plastering materials (see, for example, Patent Document 1).

[0003] Patent Document 1 discloses a floor structure in which a building compound composition kneaded with water is applied with a plastering trowel onto the underlayment of the walls and floors of a new building or a used building being renovated.

[0004] In the design surface structure of a building, it is preferable to prevent cracking and peeling of plastering materials. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-131345 Summary of the Invention [Problem to be solved by the invention]

[0006] Taking the above facts into consideration, the purpose of this invention is to provide a design surface structure for buildings that suppresses cracking and peeling of plastering materials. [Means for solving the problem]

[0007] The decorative surface structure of a building in the first aspect of the present invention comprises a resin body provided on the surface side of a base material and containing fibrous members in at least a portion thereof, and a plastering material provided on the surface side of the resin body.

[0008] In the design surface structure of a building of the second aspect of the present invention, in the design surface structure of a building of the first aspect of the present invention, the plastering material is an elastic cement mortar containing at least one of elastic resin and fiber, an elastic resin mortar containing elastic resin or containing elastic resin and fiber, or an elastic clay mortar containing at least one of elastic resin and fiber.

[0009] In the architectural design structure of the third aspect of the present invention, the fibrous member and the resin body in the architectural design structure of the first or second aspect of the present invention are made to have approximately the same thickness.

[0010] In the design surface structure of a building of the fourth aspect of the present invention, in the design surface structure of a building of any one of the first to third aspects of the present invention, the fibrous members and the resin body are arranged so as to span at least the joints of the base material.

[0011] The fifth aspect of the building design structure of the present invention is a building design structure of any one of the first to fourth aspects of the present invention, which is provided with a finishing material applied to the surface side of the plastering material.

[0012] In the sixth aspect of the building design structure of the present invention, in the building design structure of any one of the first to fifth aspects of the present invention, the base material is supported via a support member provided on the surface side of the base material. [Effects of the Invention]

[0013] In the architectural surface structure of the first aspect of this invention, the fibrous members and resin are integrated to act as a reinforcing material, improving mechanical strength in tension, bending, compression, etc. By providing a resin body that at least partially contains fibrous members, the internal stress of the architectural surface structure of the building is dispersed and local stress concentration is alleviated, thereby suppressing cracking and peeling of the plaster material.

[0014] In the architectural design of the second aspect of the present invention, the plastering material is an elastic cement mortar containing at least one of elastic resin and fiber, an elastic resin mortar containing elastic resin or elastic resin and fiber, or an elastic clay mortar containing at least one of elastic resin and fiber. This improves the elastic properties of the plastering material. Therefore, when the building vibrates due to, for example, an earthquake or traffic vibrations (such as the passing of large trucks), the plastering material follows the vibrations of the building. As a result, cracking and peeling of the plastering material can be suppressed.

[0015] In the architectural design of the third aspect of the present invention, the fibrous members and the resin body are made to be approximately the same thickness, so that the fibrous members are embedded in the resin body. This integrates the fibrous members and the resin, improving their strength. As a result, cracking and peeling of the plaster material can be suppressed.

[0016] In the fourth aspect of the present invention, the fibrous members and resin bodies are arranged to straddle at least the joints of the base material, which increases the strength of the joints of the base material where large stress concentrations occur when the building vibrates, thereby suppressing cracks in the plaster material.

[0017] In the fifth aspect of the building design structure of the present invention, even if the building design structure has a finishing material attached to the surface side of the plastering material, cracks in the finishing material can be suppressed.

[0018] In the sixth aspect of the present invention, the base material is supported by a support member attached to the surface of the base material, so that even if a crack occurs in the plaster material, the building's design surface can be easily replaced. Therefore, even if a crack occurs in the plaster material, it can be easily replaced. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a cross-sectional view showing the design structure of a building according to an embodiment. [Figure 2] FIG. 1 is a cross-sectional view showing a construction method for the design surface structure of a building according to an embodiment. [Figure 3] FIG. 1 is a cross-sectional view showing a construction method for the design surface structure of a building according to an embodiment. [Figure 4] FIG. 1 is a cross-sectional view showing a construction method for the design surface structure of a building according to an embodiment. [Figure 5] FIG. 10 is a diagram showing the results of a test conducted to confirm the effect of the design surface structure of the building according to the embodiment. [Figure 6] FIG. 1 is a diagram showing test results of Comparative Example 1. DETAILED DESCRIPTION OF THE INVENTION

[0020] The design surface structure of a building according to the embodiment will be described below with reference to the drawings. The design surface structure of a building according to the embodiment will be described as an example of a floor structure (an example of a design surface structure) 10 of a new high-rise building (an example of a building) 5. In each drawing, an arrow H indicates the up-down direction of the building. The upper side in the up-down direction is the front side, and the lower side in the up-down direction is the back side.

[0021] [Configuration of floor structure 10] As shown in FIG. 1, a floor structure 10 of a high-rise building 5 is a double floor structure including a floor slab (an example of a base material) 12, support legs (an example of a support member) 14, and a floor body 20.

[0022] (Floor slab 12) The floor slab 12 is a plate-like member that forms a horizontal surface in the high-rise building 5. The floor slab 12 is made of materials such as reinforced concrete or steel-reinforced concrete. The floor slab 12 forms the floor of the upper floor and also forms part of the ceiling of the lower floor. The floor slab 12 is supported by vertical structural members such as columns, beams, or walls, and has the function of supporting static loads and dynamic loads applied from above and transmitting these loads to the vertical structural members.

[0023] (Support leg 14) The support legs 14 are fixed to the front surface of the floor slab 12. The support legs 14 are formed as rod-shaped members extending in the vertical direction, and a plurality of support legs 14 are provided at predetermined intervals in the horizontal direction. These support legs 14 support the floor main body 20 from the back surface side. In other words, the floor main body 20 is supported by the floor slab 12 via the support legs 14.

[0024] [Configuration of floor body 20] As shown in FIG. 1, the floor body 20 is configured to include a base material 22, fibrous members 24, a resin body 26, and a plastering material 28.

[0025] (Base material 22) The base material 22 is made of, for example, plywood and is formed into a rectangular plate shape when viewed from above. The back side of the base material 22 is supported by the support legs 14, and multiple base materials 22 are arranged side by side in the horizontal direction. A joint 23 is formed between adjacent base materials 22 in the horizontal direction. The base material 22 can be made of wood, concrete, mortar, concrete mortar, steel, etc.

[0026] (fibrous member 24) The fibrous members 24 may be, for example, a sheet-like glass net formed by forming glass fibers into a mesh. The thickness of the fibrous members 24 in the vertical direction is, for example, 0.1 mm to 3.0 mm. The fibrous members 24 are arranged so as to cover the surface of the base material 22.

[0027] From the viewpoint of cement resistance, it is preferable to use alkali-resistant glass fiber as the fibrous members 24. Note that glass fiber, carbon fiber material, aramid fiber, nonwoven fabric, etc. can be used as the fibrous members 24. Furthermore, the fibrous members 24 may be disposed on the surface side of the base material 22 so as to span at least the seam 23 of the base material 22.

[0028] (Resin body 26) The resin body 26 is formed of, for example, an epoxy resin, an acrylic resin, a polyurethane resin, or the like. The resin body 26 is arranged so as to cover the surface of the base material 22. The resin body 26 contains the fibrous member 24 therein. From the viewpoint of strength, it is preferable that the fibrous member 24 be arranged in the center of the resin body 26 in the vertical direction.

[0029] The thickness of the resin body 26 in the vertical direction is, for example, 0.1 mm to 3.0 mm. From the viewpoint of strength, it is preferable that the thickness of the fibrous member 24 in the vertical direction be approximately the same as the thickness of the resin body 26 in the vertical direction.

[0030] The resin body 26 may contain fibrous members 24 at least in the portion spanning the joint 23 of the base material 22. That is, the resin body 26 may contain fibrous members 24 in at least a portion thereof. The resin body 26 may also be a resin with a self-leveling effect. In this case, the workability of the floor body 20 (for example, ease of leveling work, reduction of work time) is improved.

[0031] (plastering material 28) The plastering material 28 is arranged so as to cover the surface of the resin body 26. The plastering material 28 is preferably an elastic-material-containing plastering material that contains an elastic material. Examples of elastic materials include elastic resins (e.g., acrylic resins) and fibers (e.g., nylon fibers). The elastic-material-containing plastering material may be elastic cement mortar containing at least one of elastic resin and fiber, elastic resin mortar containing elastic resin or elastic resin and fiber, or elastic clay mortar containing at least one of elastic resin and fiber.

[0032] The thickness of the plastering material 28 in the vertical direction is, for example, 1.0 mm to 30.0 mm. The plastering material 28 may be a known plastering material such as a lime-based plastering material, a gypsum-based plastering material, a cement-based plastering material, a clay-based plastering material, or a resin-based plastering material. Stone particles, glass, roofing tiles, ceramics, recycled materials, or the like may be mixed into the plastering material 28 to create a terrazzo finish. A finishing material such as tiles, stone, or brick may also be placed on the surface of the plastering material 28.

[0033] [Construction method for floor structure 10] As shown in Fig. 2, first, a plurality of support legs 14 are installed at predetermined positions on the floor slab 12. Next, a plurality of base materials 22 are installed on the plurality of support legs 14. At this time, a caulking material may be injected into the joints 23 between adjacent base materials 22 to fill the gaps. Next, fibrous members 24 are laid on the surface of the base materials 22.

[0034] 3, the resin body 26 contained in the container 27 is poured from above the fibrous members 24. At this time, a working tool may be used so that the resin body 26 has approximately the same thickness as the fibrous members 24. Next, the resin body 26 is left for a specified time until it hardens.

[0035] Next, as shown in Figure 4, a plastering trowel 29 is used to apply plastering material 28 to the surface of resin body 26 in a predetermined thickness. Next, the plastering material 28 is left for a specified time until it hardens, and construction of floor structure 10 is completed. Note that a primer for plastering material 28 may be applied to the surface of resin body 26 before applying plastering material 28. Also, a primer coat for plastering material 28 may be applied before applying plastering material 28.

[0036] [Effectiveness verification test] A test was conducted to confirm the effect of suppressing cracking and peeling of the plaster material of the floor structure 10 according to the embodiment.

[0037] In the test, a test specimen of the embodiment and a test specimen of Comparative Example 1 were prepared. Then, a bending test in accordance with JIS K 7171 was carried out on the test specimen of the embodiment and the test specimen of Comparative Example 1.

[0038] As shown in Figure 5(A), the test specimen of the embodiment was made by placing a fibrous member 24 made of glass net on the surface of a base material 22 made of plywood, pouring an epoxy resin body 26 into it and allowing it to harden, and then applying an elastic plastering material 28 to the surface to form a floor body 20A.

[0039] As shown in Figure 6(A), the test specimen of Comparative Example 1 was formed by applying a normal plastering material that did not contain elastic material as the plastering material 28 to the surface of a base material 22 formed from plywood to form a floor body 20B.

[0040] Looking at each specimen after the test, as shown in Fig. 5(B), the specimen of the embodiment showed no visible cracks or peeling in the plaster material 28. As shown in Fig. 6(B), the specimen of Comparative Example 1 showed no visible cracks or peeling in the plaster material 28.

[0041] [Effect] However, when a building vibrates due to an earthquake or traffic vibrations (such as the passing of large trucks), the plastering material 28 may not be able to follow the vibrations of the building, resulting in cracks.

[0042] The floor structure 10 of the high-rise building 5 of the embodiment comprises a resin body 26 provided on the surface side of the base material 22 and containing fibrous members 24 in at least a portion thereof, and a plastering material 28 provided on the surface side of the resin body 26 (see Figure 1).

[0043] The fibrous members 24 and resin are integrated to act as a reinforcing material, improving mechanical strength in tension, bending, compression, etc. By providing a resin body 26 that at least partially contains the fibrous members 24, internal stress in the design surface structure of the building is dispersed and local stress concentration is alleviated. As a result, cracking and peeling of the plastering material 28 can be suppressed.

[0044] In the floor structure 10 of the high-rise building 5 of the embodiment, the plastering material 28 is an elastic cement mortar containing at least one of elastic resin and fiber, an elastic resin mortar containing elastic resin or containing elastic resin and fiber, or an elastic clay mortar containing at least one of elastic resin and fiber (see Figure 1).

[0045] Plastering material 28 is an elastic cement mortar containing at least one of elastic resin and fiber, an elastic resin mortar containing elastic resin or elastic resin and fiber, or an elastic clay mortar containing at least one of elastic resin and fiber, which improves the elastic properties of plastering material 28. Therefore, when a building vibrates due to, for example, an earthquake or traffic vibrations (such as the passing of a large truck), plastering material 28 follows the vibrations of the building. As a result, cracking and peeling of plastering material 28 can be suppressed.

[0046] In the floor structure 10 of the high-rise building 5 of the embodiment, the fibrous members 24 and the resin body 26 have approximately the same thickness (see FIG. 1).

[0047] By making the fibrous members 24 and the resin body 26 approximately the same thickness, the fibrous members 24 are embedded in the resin body 26. This allows the fibrous members 24 and the resin to be integrated, improving strength. As a result, cracking and peeling of the plastering material 28 can be suppressed.

[0048] In the floor structure 10 of the high-rise building 5 of the embodiment, the fibrous members 24 and the resin bodies 26 are arranged so as to straddle at least the joints 23 of the base material 22 (see FIG. 1).

[0049] The fibrous members 24 and the resin bodies 26 are arranged so as to straddle at least the joints 23 of the base material 22, thereby improving the strength of the joints 23 of the base material 22 where large stress concentrations occur when the building vibrates. As a result, cracks in the plastering material 28 can be suppressed.

[0050] The floor structure 10 of the high-rise building 5 of the embodiment includes a finishing material provided on the surface side of the plastering material 28.

[0051] Even if the design surface structure of the building includes a finishing material provided on the surface side of the plastering material 28, cracks in the finishing material can be suppressed.

[0052] In the floor structure 10 of the high-rise building 5 of the embodiment, the base material 22 is supported via support legs 14 provided on the surface side of the floor slab 12 (see FIG. 1).

[0053] The base material 22 is supported via support legs 14 provided on the surface side of the floor slab 12, so that even if a crack occurs in the plaster material 28, the floor body 20 can be easily removed. Therefore, even if a crack occurs in the plaster material 28, the floor body 20 can be easily replaced.

[0054] The design structure of the building of this invention has been explained based on the embodiment. However, the specific configuration is not limited to this embodiment, and design changes are permitted as long as they do not deviate from the gist of the invention according to each claim in the scope of the patent.

[0055] In the embodiment, an example in which the design surface structure is a floor structure is shown, but the design surface structure is not limited to this form and may be a design surface structure of a wall, ceiling, roof, staircase, etc.

[0056] In the embodiment, an example has been shown in which the base material 22 is plywood, but the base material is not limited to this, and may be, for example, concrete or a steel plate.

[0057] In the embodiment, an example has been shown in which the fibrous members 24 are glass nets, but the fibrous members are not limited to this form and may be formed by scattering fibers.

[0058] In the embodiment, an example has been shown in which the base material is the floor slab 12. However, the base material is not limited to this embodiment, and may be a wooden floor.

[0059] In the embodiment, an example has been shown in which the building is a new high-rise building 5. However, the building is not limited to this, and may be a new building or an existing building. Furthermore, the building may be a low-rise building, an apartment building, or a wooden detached house.

[0060] In the embodiment, an example has been shown in which the floor body 20 is composed of a base material 22, fibrous members 24, a resin body 26, and a plastering material 28. However, the floor body may also include particle board, gypsum board, a floor heating mat, a floor underlayment plywood, etc.

[0061] In the embodiment, an example in which the support members are support legs has been described, but the support members are not limited to this example and may be elongated joists that extend horizontally to support floorboards and are fixed to beams or floor slabs.

[0062] In the embodiment, an example in which the design surface structure is a double floor structure has been shown, but the design surface structure is not limited to this form and may be a straight floor structure. [Explanation of symbols]

[0063] 5. Skyscraper (example of a building) 10 Floor structure (an example of a design surface structure) 12 Floor slab (example of base material) 20 Floor body 22 Base material 23 Seam 24 Fibrous members 26 Resin body 28 Plastering materials

Claims

1. a resin body provided on the surface side of the base material and including fibrous members at least in part; A plastering material provided on the surface side of the resin body; The architectural structure of the building.

2. The plastering material is An elastic cement mortar containing at least one of an elastic resin and a fiber; Elastic resin mortar containing elastic resin or containing elastic resin and fiber, or It is an elastic clay mortar containing at least one of elastic resin and fiber. The design surface structure of the building according to claim 1.

3. The fibrous member and the resin body have approximately the same thickness. The design surface structure of the building according to claim 2.

4. The fibrous member and the resin body are disposed so as to span at least the seam of the base material. The design surface structure of the building according to claim 2.

5. A finishing material is provided on the surface side of the plastering material. The design surface structure of the building according to claim 2.

6. The base material is supported via a support member provided on the surface side of the substrate. The design surface structure of the building according to claim 2.

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