JP2024160661A - Architectural materials, architectural structures and buildings made of laminated bamboo lumber - Google Patents

Abstract

To provide construction materials such as pillar members or beam members consisting of assembled bamboo, construction structures and buildings that use them.SOLUTION: A pillar member 100 consisting of assembled bamboo is composed of an intermediate pillar member 110 consisting of four long rod-shaped members 111 with a square cross-section, and a reinforcing core member 120 consisting of one short rod-shaped member 121 with a cross-shaped cross-section. A beam member 200 consisting of assembled bamboo is composed of a connecting beam member 210 consisting of three plate-like members 211, 212 having a rectangular cross-section, and an intermediate beam member 220 consisting of two plate-like members 221 having a rectangular cross-section. The pillar member 100 and the beam member 200 are connected horizontally and vertically, and the pillar member 100 is installed on a foundation 300. In addition, a wall panel is connected and installed between the pillar members 100, and a roofing material is installed on the beam member 200 to form a structure that can be used as an arbor, a shaded shelf, etc.SELECTED DRAWING: Figure 1

Description

The present invention relates to architectural structural materials such as pillars, beams, and joists made of laminated bamboo timber, architectural structures combining these materials, and buildings using these architectural structural materials and structures.

Traditionally, in relatively large outdoor spaces such as parks, gardens, exhibition halls, and sports facilities, structures such as gazebos and pergolas have often been installed to allow users to view the surroundings or take a rest at any time.

These buildings are often made from wood so that they can be easily assembled, dismantled and removed, blend in with their surroundings and take into consideration the mental health of the occupants.

Recently, however, large amounts of trees have been cut down in forests and other areas to be used as lumber, and as a result, new trees have not been able to grow fast enough, leading to a sharp decline in lumber resources and the risk of them being depleted.

On the other hand, bamboo has traditionally been used rarely as a building material, and bamboo groves around forests and other areas are often left abandoned or cut down without any use, meaning that bamboo resources are not being used effectively.

In order to make effective use of bamboo resources, it has been proposed to divide bamboo into thin rectangular pieces, stack and press multiple pieces together to produce bamboo laminated lumber, which can then be further joined and glued together for use as building structural materials for floors, walls, etc. (see Patent Documents 1, 2, and 3).

JP 2001-105408 A JP 2000-291236 A Japanese Patent Application Publication No. 09-057714

However, the architectural structural materials made of laminated bamboo lumber described in Patent Documents 1, 2, and 3 are intended to be used as floor and wall components made of flat plate materials, and are not intended to be used as pillar and beam components made of rod-shaped materials that are subject to large compressive and shear forces.

The present invention was made to solve these problems, and aims to provide architectural structural materials made of laminated bamboo lumber, particularly architectural structural materials such as pillars and beams made of rod-shaped materials that are subject to large compressive and shearing forces.

The objective is also to provide architectural structures that combine these architectural structural materials, and buildings that use these architectural structural materials and architectural structures.

In order to achieve the above objective, the architectural structural material of the present invention is a pillar member made of laminated bamboo lumber, characterized in that the pillar member is composed of an intermediate pillar member made of four long rod-shaped members with a square cross section, and a reinforcing core member made of one short rod-shaped member with a cross-shaped cross section.

The architectural structural material of the present invention is a beam member made of laminated bamboo lumber, characterized in that the beam member is composed of a connecting beam member made of three flat plate members with a rectangular cross section, and an intermediate beam member made of two flat plate members with a rectangular cross section.

Furthermore, in order to achieve the above object, the architectural structure of the present invention is characterized in that the column member and the beam member are joined at the upper end of the intermediate column member and the middle part of the connecting beam member, and fastened with fastening members to form a column-beam joint structure.

Furthermore, in order to achieve the above-mentioned objective, the building of the present invention is characterized in that it uses the column members and the beam members, connects the column members and the beam members in the front, back, left and right directions to form the column-beam joint structure, and further installs the column members on a foundation.

The building of the present invention is characterized in that it is constructed by using the column members and the beam members, connecting the column members and the beam members in the front, back, left and right directions to form the column-beam joint structure, installing the column members on the foundation, connecting and installing wall panels between the column members, and installing roofing materials on the beam members.

Here, the building is characterized as being a gazebo or a shade shelf.

The architectural structural material of the present invention can provide architectural structural materials made of laminated bamboo lumber, such as pillars and beams made of long rod-shaped materials that are subjected to large compressive and shearing forces.

Furthermore, the architectural structure of the present invention allows the above architectural structural materials to be combined and connected well, thereby enabling the construction of a building using these architectural structural materials and architectural structures to be ideally realized.

The building of the present invention allows users to view the surroundings and take a rest at any time, and allows for easy construction of gazebos, shade shelves (pergolas), and other buildings that blend in with the surrounding environment and take into consideration the mental health of users.

FIG. 2 is an exploded perspective view of a column member and a beam member as architectural structural materials made of the bamboo laminated lumber of the present invention. FIG. 2 is a perspective view of a joint between the column member and the foundation shown in FIG. 1 . 2 is a perspective view of a joint between a column member and a beam member shown in FIG. 1 . 2 is an explanatory diagram showing a method of manufacturing a reinforcing core member that constitutes the pillar member shown in FIG. 1. FIG. FIG. 1 is a perspective view of an architectural structure made by combining architectural structural members made of laminated bamboo lumber of the present invention. FIG. 1 is a perspective view of an architectural structure made by combining architectural structural members made of laminated bamboo lumber of the present invention. FIG. 1 is a perspective view of a building using architectural structural materials and architectural structures made from the bamboo laminated lumber of the present invention.

First, the architectural structural material made from laminated bamboo lumber of the present invention will be described in detail below with reference to the drawings.

The pillar member 100 as a building structural material made of laminated bamboo lumber of the present invention is composed of an intermediate pillar member 110 and a reinforcing core member 120, as shown in Figure 1.

As shown in FIG. 1, the intermediate column member 110 is composed of four rod-shaped members 111, 111, 111, 111 with a square cross section, and these rod-shaped members 111, 111, 111, 111 are arranged with a gap S11 with a cross-shaped cross section.

As shown in FIG. 1, the reinforcing core member 120 is composed of a single short rod-shaped member 121 with a cross-shaped cross section.

The rod-shaped member 111 is made of laminated bamboo lumber and is shaped to dimensions such as 40 mm length x 40 mm width x 1,000 mm, 1,500 mm, or 2,000 mm length.

On the other hand, the short rod-shaped member 121 is a member made of laminated bamboo lumber, and for example, as shown in Figure 4, in a flat plate material 122 of length 28 mm x width 102 mm x length 1,800 mm, a groove 122a of width 28 mm x length 900 mm is formed extending from one end to the center.
The two flat plate members 122 are joined together at the grooves 122a and connected by fastening members such as screws to form a single short rod-like member 121 having a cross-shaped cross section, as shown in FIG.

The pillar member 100 is constructed by inserting a reinforcing core member 120 with a cross-shaped cross section into the gap S11 with a cross-shaped cross section at the connecting portion of the upper and lower intermediate pillar members 110, 110, as shown in FIG. 1, and fastening and connecting them with fastening members such as screws.

The beam member 200 as a building structural material made of laminated bamboo lumber of the present invention is composed of a connecting beam member 210 and an intermediate beam member 220, as shown in FIG. 1.

As shown in FIG. 1, the connecting beam member 210 is composed of two flat plate members 211, 211 with a rectangular cross section and one flat plate member 212 with a rectangular cross section, and these flat plate members 211, 211, 212 are arranged with a predetermined gap S21, S21 maintained.

As shown in FIG. 1, the intermediate beam member 220 is composed of two flat plate members 221, 221 with a rectangular cross section, and these flat plate members 221, 221 are arranged with a predetermined gap S22 maintained between them.

Here, the flat plate member 211 is a member made of laminated bamboo lumber, and is formed into a shape having dimensions of, for example, 40 mm wide x 150 mm long x 2,000 mm long.
The flat plate member 212 is formed to have dimensions of, for example, 40 mm wide x 150 mm long x 2,000 mm long. A 108 mm long central portion is slightly cut out to form a narrow cutout portion 212a having a width of 34 mm, and 300 mm long portions at both ends are slightly cut out to form narrow cutout portions 212b, 212b having a width of 34 mm.

The flat plate member 221 is made of laminated bamboo lumber and is molded to a size of, for example, 40 mm wide x 150 mm long x 1,600 mm long.

As shown in Figures 1 and 3, one end of each of the flat plate-like members 221, 221 constituting the intermediate beam member 220 is inserted into the predetermined gaps S21, S21 at both ends of the flat plate-like members 211, 211, 212 constituting the connecting beam member 210, and they are fastened and connected using fastening members such as screws, whereby the intermediate beam member 220 can be connected to the connecting beam member 210, and the beam member 200 can be formed.

Furthermore, as shown in Figures 1 and 3, by inserting the upper ends of the long rod-shaped members 111, 111, 111, 111 constituting the intermediate column member 110 into the predetermined gaps S21, S21 in the center of the flat plate-shaped members 211, 211, 212 constituting the connecting beam member 210 and fastening and connecting them with fastening members such as screws, the connecting beam member 210 can be connected to the intermediate column member 110, and the column member 100 and the beam member 200 can be connected, thereby forming a column-beam joint structure.

Here, as shown in FIG. 1, it is preferable to form fitting grooves 211c, 211c, 212c having a width of 40 mm and a depth of 15 mm in the perpendicular direction at the central portion of the upper end portion of each of the flat plate-like members 211, 211, 212 constituting the connecting beam member 210.
As a result, as shown in Figs. 1 and 3, the connecting beam members 210, 210 perpendicular to each other in the vertical direction can be fitted into the fitting grooves 211c, 211c, 212c, and reliably connected without misalignment.

When installing the column member 100 on the foundation 300, an installation member 310 is used that is fastened and fixed to the foundation 300 by fastening members such as bolts, as shown in Figures 1 and 2.

As shown in Figures 1 and 2, the installation member 310 is a hollow box-shaped base 311 to which a fitting body 312 with a cross-shaped cross section is fixed and erected, and fitting portions 312a, 312a, 312a, 312a are formed on the outside of the fitting body 312.

Then, as shown in Figures 1 and 2, the lower ends of the four long rod-shaped members 111, 111, 111, 111 of the intermediate column member 110 are inserted into and abutted against the fitting portions 312a, 312a, 312a, 312a of the fitting body 312, and then fastened and fixed with fastening members such as bolts and nuts, so that the column member 100 can be erected on the foundation 300.

As explained above, by using pillar members 100 and beam members 200 as architectural structural materials made of laminated bamboo lumber, constructing a foundation 300 on the site as appropriate, erecting a large number of pillar members 100 on the foundation 300 using installation members 310, and connecting the pillar members 100 and beam members 200 front to back and left to right as shown in Figures 5 and 6, an architectural structure made of the architectural structural materials of the present invention can be constructed.

As shown in Figures 5 and 6, flat wall panels 400 are connected and installed between adjacent pillar members 100, 100, and then a large number of rafter members 500 made of laminated bamboo lumber are arranged on the beam members 200, and flat roofing material 600 is fixed and installed on top of them, resulting in a building 700 that can be used as a gazebo, shade shelf (pergola), etc., as shown in Figure 6.

The wall panels 400 and roofing material 600 may be made of conventional structural plywood, but it is more preferable to use flat members made of laminated bamboo lumber.

As described above, the bamboo laminated timber building materials of the present invention can provide building structural materials made of bamboo laminated timber, such as pillar members and beam members made of long rod-shaped materials that are subjected to large compressive and shearing forces.

Furthermore, the architectural structure of the present invention allows the above architectural structural materials to be combined and connected well, thereby enabling the construction of a building using these architectural structural materials and architectural structures to be ideally realized.

Furthermore, the architectural structural materials and architectural structures made from the bamboo laminated lumber of the present invention can be easily used not only in relatively large outdoor spaces, but also in indoor spaces such as exhibition halls and sports facilities, making it possible to easily construct rest facilities, simple stores, etc., and they can be easily dismantled and removed after use.

Reference Signs List 100 Pillar member 110 Intermediate pillar member 111 Long rod-shaped member 120 Reinforcing core member 121 Short rod-shaped member 200 Beam member 210 Connecting beam members 211, 212 Flat plate-shaped member 220 Intermediate beam member 221 Flat plate-shaped member 300 Foundation 400 Wall panel 600 Roof material 700 Building

Claims (6)

A building structural material made of laminated bamboo lumber, characterized in that the pillar member is composed of an intermediate pillar member made of four long rod-shaped members with a square cross section, and a reinforcing core member made of one short rod-shaped member with a cross-shaped cross section. A beam member made of laminated bamboo lumber, characterized in that the beam member is composed of a connecting beam member made of three flat plate members with a rectangular cross section, and an intermediate beam member made of two flat plate members with a rectangular cross section. An architectural structure characterized in that a column-beam joint structure is formed by using the column member described in claim 1 and the beam member described in claim 2, joining the upper end of the intermediate column member to the middle part of the connecting beam member, and fastening them with fastening members. A building constructed by using the column member described in claim 1 and the beam member described in claim 2, connecting the column member and the beam member in the front, back, left and right directions to form the column-beam joint structure described in claim 3, and further installing the column member on a foundation. A building constructed by using the column member described in claim 1 and the beam member described in claim 2, connecting the column member and the beam member in the front, back, left and right directions to form the column-beam joint structure described in claim 3, and further installing the column members on a foundation, connecting and installing wall panels between the column members, and installing roofing materials on the beam members. The building according to claim 5, characterized in that the building is a gazebo or a shade shelf.

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