Building
Patent Information
- Authority / Receiving Office
- VN Β· VN
- Patent Type
- Applications
- Current Assignee / Owner
- MORIYAKENSETU CO LTD
- Filing Date
- 2024-09-30
- Publication Date
- 2026-06-15
AI Technical Summary
Conventional raised-floor buildings that use concrete between the upper and lower floors face issues such as high maintenance costs, labor-intensive demolition processes, and challenges with disposing of concrete after demolition.
A building design where the upper floors are constructed using pillars at a higher level than the ground, with a first wooden base on top of the pillars, a viscoelastic member, a second wooden base, and flooring material, eliminating the use of concrete between the upper and lower floors.
This design reduces the weight and cost of the building, enhances insulation and ventilation, simplifies maintenance and demolition processes, and reduces environmental impact by eliminating concrete disposal issues.
Smart Images
Figure VN1202506881_0
Abstract
Description
building
[0001] The present invention relates to buildings, and more particularly to raised-floor buildings in which the upper floors are constructed above ground level by pillars.
[0002] BACKGROUND ART Conventionally, in order to make effective use of land, raised-floor buildings have been known in which the first floor is used as a parking lot or garage, and the second floor is used as living space (for example, Patent Document 1).
[0003] As shown in Figure 5, some conventional raised-floor buildings have concrete C laid on a steel deck B supported by steel columns (column materials) A, a wooden base D placed on top of the concrete C, and floor materials (floor panels) E placed on top of the wooden base D.
[0004] Japanese Patent Application Laid-Open No. 2002-70197
[0005] Like conventional raised-floor buildings, the strength of the building can be increased by laying concrete C on top of a steel deck B. However, since concrete C weighs 2,300 kg (2.3 t) per cubic meter, the foundation needs to be sturdy, which tends to increase costs.
[0006] Furthermore, conventional buildings in which concrete C is laid on top of a steel frame deck B have issues such as high maintenance costs for utilities and other expenses, time-consuming maintenance of water pipes, time-consuming demolition, and the problem of disposing of the concrete after demolition.
[0007] The present invention has been made in view of the above circumstances, and the problem to be solved by the present invention is to provide a building in which concrete is not laid between the upper and lower floors.
[0008] [Building] The building of the present invention is a building in which the floors of the upper floors are constructed at a position higher than the ground using pillars, and a first wooden base made of wood is provided above the pillars, a viscoelastic member is provided above the first wooden base, a second wooden base made of wood is provided above the viscoelastic member, and flooring is provided above the second wooden base.
[0009] In the building of the present invention, a resin foundation gasket can also be provided between the pillar material and the first wooden base.
[0010] In the building of the present invention, the pillar material, foundation gasket, and first wooden base can be connected by a first connecting material, and the first wooden base, viscoelastic member, and second wooden base can be connected by a second connecting material.
[0011] In the building of the present invention, concrete is not laid between the upper and lower floors, so there are no inconveniences that would arise from laying concrete between the upper and lower floors.
[0012] Fig. 1 is a cross-sectional view showing an example of a building of the present invention. Fig. 1 is an enlarged view of part Y in Fig. 1. Fig. 2 is an explanatory view showing an example of the structure of the part between the upper and lower floors of the building in Fig. 1. Fig. 2 is a view taken along the X-X arrow in Fig. 1. Fig. 3 is an explanatory view showing an example of the structure of the part between the upper and lower floors of a conventional raised-floor building.
[0013] An example of an embodiment of the present invention will be described with reference to the drawings. As an example, the building shown in Fig. 1 is a raised-floor building in which the upper floor is constructed above the ground by pillars 1, and includes pillars 1, foundation packing 2, a first wooden base 3, a viscoelastic member 4, a second wooden base 5, and upper floor materials 6, as shown in Figs.
[0014] The pillars 1 are members that function as pillars supporting the flooring 6 of the upper floor, and can be made of steel (steel frame) such as H-beams. A plurality of pillars 1 are provided for each building, and a first wooden base 3, a second wooden base 5, etc. are installed above the pillars 1.
[0015] As shown in Figure 4, in this embodiment, three pillars 1 are installed on each of the left, center, and right sides of the figure. The number and positions of the pillars 1 shown here are merely examples, and the number and positions of the pillars 1 may be other than these.
[0016] The foundation packing 2 is a member for ensuring breathability. The foundation packing 2 is provided between each pillar material 1 and the first wooden base 3. For example, a resin packing with a thickness of about 10 to 30 mm, preferably about 20 mm, can be used as the foundation packing 2. Resin packing is breathable and has the effect of preventing condensation and blocking moisture. The foundation packing 2 given here is an example, and other types of foundation packing 2 may also be used.
[0017] The first wooden base 3 is a member that supports the floor material 6 of the upper floor in cooperation with the second wooden base 5, the viscoelastic member 4, etc. Various types of wood such as cypress, zelkova, cedar, red pine, black pine, etc. can be used for the first wooden base 3. Laminated material can also be used for the first wooden base 3.
[0018] In this embodiment, a first wooden base 3 is provided on each foundation packing 2. The first wooden base 3 can be made of wood formed into a predetermined shape, and the size, thickness, etc. can be adjusted as appropriate.
[0019] The viscoelastic member 4 is a member that reduces shaking by absorbing or deflecting vibrations related to a building, and is a member that has both viscosity and elasticity. Viscoelastic members 4 include those that have one or more of a vibration-damping function, a vibration-damping function, and an earthquake-resistant function (for example, what is called a vibration-damping material, a vibration-damping material, an earthquake-resistant material, a vibration-damping tape, a vibration-damping tape (registered trademark), an earthquake-resistant tape, etc.).
[0020] In this embodiment, a tape-shaped viscoelastic body having a vibration-damping function (hereinafter referred to as a "tape-shaped vibration-damping material") is used as the viscoelastic member 4. The tape-shaped vibration-damping material may be a double-sided tape having adhesive surfaces on both sides, or a single-sided tape having an adhesive surface on only one side.
[0021] The tape-shaped vibration-damping material may be a few millimeters thick (approximately 1 to 3 mm) and may be of a type that melts when heated by shaking. The viscoelastic member 4 shown here is an example, and other materials may also be used for the viscoelastic member 4.
[0022] The viscoelastic member 4 is provided on each first wooden base 3. It is preferable that the viscoelastic member 4 is provided on the entire top surface of each first wooden base 3, but it can also be provided on the top surface of each first wooden base 3 with a gap therebetween.
[0023] The second wooden base 5 is a member that supports the upper floor floor material 6 in cooperation with the first wooden base 3, the viscoelastic member 4, etc. As with the first wooden base 3, the second wooden base 5 can be made of various types of wood such as cypress, zelkova, cedar, red pine, black pine, etc., as well as laminated wood.
[0024] The second wooden base 5 is provided so as to straddle the plurality of viscoelastic members 4. The second wooden base 5 can be made of a plurality of pieces of wood. In this case, the plurality of pieces of wood are laid over the entire surface, and the floor material 6 for the upper floor is provided on top of them.
[0025] The second wooden base 5 can be made of wood shaped into a predetermined shape. The size, thickness, etc. of the second wooden base 5 can be adjusted as needed. In this embodiment, the second wooden base 5 has the same size and thickness as the first wooden base 3.
[0026] Heat insulating material 7 can be provided on both or either of the side peripheral surface of the first wooden base 3 and the surface of the second wooden base 5 facing the lower floor. The heat insulating material 7 can be provided, for example, by spraying a heat insulating material onto these surfaces.
[0027] The insulating material 7 can have a thickness equal to the sum of the thickness of the first wooden base 3 and the thickness of the second wooden base 5. For example, if the thickness of the first wooden base 3 and the thickness of the second wooden base 5 are both 105 mm, the insulating material 7 can have a thickness of 210 mm.
[0028] 3, in this embodiment, the pillar material 1, foundation packing 2, and first wooden base 3 are connected by a first connecting member 8, and the first wooden base 3, viscoelastic member 4, and second wooden base 5 are connected by a second connecting member 9. Anchor bolts or the like can be used for the first connecting member 8 and the second connecting member 9.
[0029] In addition, in respects other than those described in this embodiment, the structure can be the same as that of a conventional building.
[0030] In the building of this embodiment, no concrete is used between the upper and lower floors, which significantly reduces the weight and eases the burden on the foundation. According to estimates by the applicant, a weight reduction of more than 30 tons can be achieved compared to when concrete is used between the upper and lower floors, although this is only a reference value.
[0031] In addition, by not using concrete between the upper and lower floors, costs can be reduced. According to estimates by the applicant, costs can be reduced by 53% compared to using concrete between the upper and lower floors, although this is only a reference value.
[0032] Furthermore, because the building of this embodiment uses wood instead of concrete, it is possible to spray insulation material onto the concrete parts as in the past. This results in higher insulation and better ventilation than conventional buildings. As a result, maintenance costs such as utility bills can also be reduced.
[0033] In addition, in the building of this embodiment, a space is created below the second wooden base 5, which was not present in conventional buildings, and water pipes and the like can be installed in this area, making maintenance of the water pipes easier than in conventional buildings.
[0034] In the building of this embodiment, wood is used instead of concrete, so wood can be reused when demolished, reducing disposal costs. Furthermore, using reusable wood also contributes to a decarbonized society and helps reduce environmental impact.
[0035] The structure of the building in this embodiment is an example, and the structure of the building of the present invention is not limited to the structure of this embodiment. The building of the present invention can be modified as needed by adding, replacing, or omitting components within the scope of achieving the intended purpose.
[0036] The building of the present invention can be used as a building for various purposes, such as a residential building, an office building, etc.
[0037] REFERENCE SIGNS LIST 1 Pillar material 2 Foundation packing 3 First wooden base 4 Viscoelastic member 5 Second wooden base 6 Floor material 7 Heat insulating material 8 First connecting material 9 Second connecting material A Steel column (pillar material) B Steel deck C Concrete D Wooden base E Floor material (floor panel)
Claims
1. A building in which an upper floor is constructed above ground level using pillars, a first wooden base made of wood is provided above the pillars, a viscoelastic member is provided above the first wooden base, a second wooden base made of wood is provided above the viscoelastic member, and flooring for the upper floor is provided above the second wooden base.
2. The building according to claim 1, characterized in that a foundation gasket is provided between the pillar material and the first wooden foundation.
3. A building according to claim 2, characterized in that the pillar material, the foundation packing and the first wooden base are connected by a first connecting material, and the first wooden base, the viscoelastic member and the second wooden base are connected by a second connecting material.
4. A building according to claim 1, characterized in that a heat insulating material is provided on the side peripheral surface of the first wooden foundation and / or on the surface of the second wooden foundation facing the lower floor.