building

Abstract

To provide a building having a main building section and a sub-building section joined to the side of the main building section and less rigid than the main building section, which adopts a configuration that the earthquake force of the whole building including the sub-building section is mainly borne by the main building section and, while allowing natural lighting to the sub-building section, can be easily and reasonably applied even in a small area.SOLUTION: In plan view, a sub-building section 2 is configured in a rectangular shape and a main building section 1 is configured in a shape that follows at least two adjacent outer peripheries 2a and 2b of the sub-building section 2 and opens at least one of outer peripheries 2c and 2d.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a building comprising a main building section and a secondary building section joined to the side of the main building section and having lower rigidity than the main building section. [Background technology]

[0002] Patent Document 1 describes a building comprising a main building portion (reinforced concrete frame 32) made of reinforced concrete and a secondary building portion (steel frame frame 52) made of steel and having lower rigidity than the main building portion. In the building described in Patent Document 1, the secondary building section (52) is configured in a rectangular shape in plan view, and the main building section (32) is configured in a shape that surrounds the entire periphery of the secondary building section (52). In the building described in Patent Document 1, the seismic force that occurs in the entire building, including the secondary building section, is mainly borne by the main building section (32), making it possible to suppress the transmission of vibrations to the secondary building section (52). Furthermore, by providing the main building section (32) around the entire periphery, it is said that the torsional rigidity of the entire building is increased, making it possible to effectively resist seismic force. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-66222 Summary of the Invention [Problem to be solved by the invention]

[0004] If a high-rigidity main building section is used to surround the entire periphery of a low-rigidity secondary building section, as in the case of Patent Document 1 mentioned above, the size of the entire building will become large in plan view, making it difficult to apply to small lots, and the boundary wall between the secondary building section and the main building section that surrounds the entire periphery will become very wide, resulting in a complex structure.Furthermore, there is also the problem that natural light from the surroundings cannot be let in to the secondary building section. In light of this situation, the main objective of the present invention is to provide a technology that, in a building comprising a main building section and a secondary building section joined to the side of the main building section and having lower rigidity than the main building section, enables the main building section to bear the seismic force of the entire building, including the secondary building section, while allowing natural lighting to enter the secondary building section and can be easily and rationally applied even on small sites. [Means for solving the problem]

[0005] The first characteristic configuration of the present invention is a building comprising a main building portion and a sub-building portion joined to the side of the main building portion and having lower rigidity than the main building portion, In plan view, the secondary building portion is configured in a rectangular shape, and the main building portion is configured to follow at least two adjacent outer peripheries of the secondary building portion and open at least one outer periphery, which is an open-side outer periphery; The main building is constructed as a school building. The building is made of reinforced concrete. The sub-building is configured as a gymnasium with a large pillar-free space inside. It is a steel-framed building. , The main building section is provided with a seismic wall, and the secondary building section does not have a seismic wall in any area other than the boundary wall between the secondary building section and the main building section; The secondary building section does not have a seismic wall along the outer periphery of the open side, ensuring natural lighting through the outer periphery of the open side into the secondary building section.

[0006] According to this configuration, in plan view, the main building section is configured to follow at least two adjacent outer peripheries of the rectangular secondary building section, so the low-rigidity secondary building section can be firmly supported by the high-rigidity main building section along the out-of-plane direction of each of the two outer peripheries. This allows the high-rigidity main building section to better bear the earthquake forces acting on the secondary building section from multiple directions, ensuring a large interior space in the secondary building section. In addition, in plan view, the main building section is configured in a shape that opens up at least one outer perimeter of the secondary building section, and since there is no need for the main building section to be located outside at least one outer perimeter of that secondary building section, natural lighting can be ensured through the open outer perimeter to the secondary building section, and the building's installation area can be made as small as possible. Furthermore, since the partition wall between the main building section and the secondary building section is limited to at least two outer perimeters excluding the outer perimeter of the open secondary building section, the structure can be simplified. Therefore, the present invention provides a technology that, in a building comprising a main building section and a secondary building section joined to the side of the main building section and having lower rigidity than the main building section, allows the main building section to bear the seismic force of the entire building, including the secondary building section, primarily while allowing natural lighting to enter the secondary building section and can be easily and rationally applied even on small sites. Furthermore, with this configuration, in plan view, the main building portion configured as a school building is configured to follow at least two adjacent outer perimeters of the secondary building portion configured as a gymnasium, so access to and views from the school building can be secured around at least two outer perimeters of the gymnasium. Also, since the seismic force acting on the secondary building portion, the gymnasium, is preferably borne by the school building, which has higher rigidity, a large interior space can be secured in the gymnasium. Furthermore, with this configuration, the seismic force acting on the secondary building is mainly borne by the main building, so earthquake-resistant walls can be omitted in areas of the secondary building other than the boundary wall with the main building, such as areas along the open perimeter. This allows for a larger interior space in the secondary building, and by omitting earthquake-resistant walls along the open perimeter, it is possible to ensure better natural lighting from the surrounding area. Furthermore, with this configuration, the main building can be made of reinforced concrete for high rigidity, while the secondary building can be made of steel frame for lower rigidity. Furthermore, even though the secondary building is made of steel frame, seismic forces acting on the secondary building are mainly borne by the main building, so a larger interior space can be secured in the secondary building.

[0009] The present invention 2 A characteristic feature of this structure is that, in plan view, the main building section is configured in an L-shape that follows the two adjacent outer peripheries of the sub-building section.

[0010] According to this configuration, the main and secondary buildings can be arranged in a way that, in plan view, the two adjacent outer peripheries of the secondary building are aligned with the inner corners of the L-shaped main building. This leaves the two outer peripheries of the secondary building open, other than the periphery aligned with the main building, ensuring sufficient natural lighting for the secondary building and making the configuration simpler and more rational to use even on small lots.

[0011] The present invention 3 The characteristic configuration is that, in a plan view, the two adjacent outer peripheries of the sub-building section are aligned with the inner corners of the main building section, which are configured in an L-shape, and the main building section and the sub-building section are arranged in this manner; In plan view, of the two adjacent outer peripheries of the secondary building section that are aligned with the inner corners of the main building section, the main building section protrudes outward from the secondary building section along one outer periphery, and the main building section recedes inward from the secondary building section along the other outer periphery; The main building section protrudes higher in the height direction than the sub-building section.

[0013] The present invention 4 A characteristic feature of this structure is that the columns and the foundations supporting them of the main building section and the sub-building section are shared at the partition wall between the main building section and the sub-building section.

[0014] According to this configuration, the partition wall between the main building section and the secondary building section can achieve an even simpler and more rational configuration by sharing the columns and the foundations that support them of both the main building section and the secondary building section. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view showing a schematic configuration of a building according to an embodiment of the present invention. [Figure 2] FIG. 1 is a plan view showing a schematic configuration of a building according to the present embodiment. [Figure 3] FIG. 1 is an elevation view showing a schematic configuration of a building according to this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] An embodiment of the present invention will be described with reference to the drawings. As shown in Figure 1, the building of this embodiment (hereinafter referred to as "this building") 50 comprises a main building section 1 and a secondary building section 2 joined to its side, and is configured so that the seismic force of the entire building 50, including the secondary building section 2, is mainly borne by the main building section 1, while allowing natural lighting to enter the secondary building section 2 and having a characteristic configuration that makes it easily and rationally applicable even to small sites, and the details of this configuration will be explained below. In this application, the building portion refers to a frame portion having a column spacing of one span or more in the short side direction and long side direction in plan view.

[0019] The main building 1 is made of high-rigidity reinforced concrete and is primarily used as a school building, while the secondary building 2 is made of steel, which is less rigid than the main building 1, and is primarily used as a gymnasium. In the plan view shown in Figure 2, the secondary building section 2 is configured in a rectangular shape, and the main building section 1 is configured in an L-shape that follows the two adjacent outer peripheries of the secondary building section 2, the main building section side outer peripheries 2a and 2b. That is, the inner outer peripheries 1a, 1b, which are the two adjacent outer peripheries on the inside of the L-shaped main building section 1, overlap with the main building section side outer peripheries 2a, 2b, which are the two adjacent outer peripheries of the rectangular secondary building section 2. Furthermore, the open side outer peripheries 2c, 2d, which are the outer peripheries other than the main building section side outer peripheries 2a, 2b of the rectangular secondary building section 2, are in an open state with no main building section 1 present on the outside.

[0020] By adopting this configuration, the low-rigidity secondary building section 2 is firmly supported by the high-rigidity main building section 1 along the out-of-plane direction of each of the two main building side outer peripheries 2a, 2b of the secondary building section 2. Seismic forces acting on the secondary building section 2 from multiple directions are then effectively borne by the higher-rigidity main building section 1. Therefore, the secondary building section 2 can be effectively used as a steel-framed gymnasium with a large interior space. 2, the main building section 1 is configured in a shape that opens the open-side outer peripheries 2c, 2d of the secondary building section 2, and the main building section 1 does not exist outside the open-side outer peripheries 2c, 2d of the secondary building section 2. Therefore, natural lighting is ensured for the secondary building section 2 through the open open-side outer peripheries 2c, 2d, and the installation area of ​​the building 50 can be made small. Furthermore, the structure has been simplified by limiting the boundary wall 6 between the main building section 1 and the secondary building section 2 to the main building side outer perimeters 2a and 2b, excluding the open side outer perimeters 2c and 2d of the open secondary building section 2. In addition, in the boundary wall 6 between the main building section 1 and the secondary building section 2, which corresponds to the two main building side outer perimeters 2a and 2b of the secondary building section 2, access and views are ensured between the secondary building section 2, which is configured as a gymnasium, and the main building section 1, which is configured as a school building.

[0021] As shown in Figure 3, in the parting wall 6 between the main building section 1 and the auxiliary building section 2, the columns 11 of the main building section 1 and the supporting foundation 21 and the columns 12 of the auxiliary building section 2 and the supporting foundation 22 are shared, realizing an even simpler and more rational configuration. Note that in this embodiment, a configuration is adopted in which the columns 11, 12 and the supporting foundations 21, 22 are shared throughout the entire area of ​​the parting wall 6 between the main building section 1 and the auxiliary building section 2, but it is also possible that the columns 11, 12 and the supporting foundations 21, 22 are not shared between the main building section 1 and the auxiliary building section 2 in some or all of the range of the parting wall 6.

[0022] As shown in Figure 2, the main building 1 has partitions 4 appropriately placed to separate classrooms and other areas, and also has earthquake-resistant walls 5 appropriately placed. In particular, at least one earthquake-resistant wall 5 is placed in the area of ​​the main building 1 where seismic forces are transmitted perpendicularly from the secondary building 2 to the main building's outer perimeters 2a and 2b. Meanwhile, the secondary building 2 has wide column spacing to create a large column-free interior space. However, because the seismic forces acting on the secondary building 2 are primarily borne by the main building 1, the earthquake-resistant walls described above are omitted in areas other than the parting wall 6 between the secondary building 2 and the main building 1, i.e., in the exterior wall areas along the open-side outer perimeters 2c and 2d. This ensures a larger interior space in the secondary building 2, which is configured as a gymnasium. Furthermore, the omission of earthquake-resistant walls along the open-side outer perimeters 2c and 2d allows for better natural lighting from the surrounding area to be ensured in the open-side outer perimeters 2c and 2d. 2 shows an example of the arrangement of the earthquake-resistant walls 5 in the building 50, but the arrangement of the earthquake-resistant walls 5 can be changed as appropriate. For example, in order to further improve the accessibility and view between the auxiliary building section 2 and the main building section 1, it is possible to reduce or eliminate the earthquake-resistant walls 5 arranged along the boundary wall section 6 between the main building section 1 and the auxiliary building section 2 as much as possible.

[0023] [Another embodiment] Other embodiments of the present invention will be described below. Note that the configurations of the embodiments described below are not limited to being applied independently, but can also be applied in combination with the configurations of other embodiments.

[0024] (1) In the above embodiment, the main building section 1 is made of reinforced concrete and the secondary building section 2 is made of steel, but the architectural components of the main building section and the secondary building section may be changed as appropriate as long as the secondary building section has lower rigidity than the main building section. For example, the main building section and the secondary building section may both be made of the same steel frame construction, and the secondary building section may have more earthquake-resistant walls than the main building section, thereby making the secondary building section less rigid than the main building section.

[0025] (2) In the above embodiment, in the plan view shown in Figure 2, the main building section 1 has an L-shaped shape that follows the two adjacent main building section side outer peripheries 2a, 2b of the secondary building section 2. However, the shape of the main building section in the plan view may be any shape that follows the outer peripheries of at least the two adjacent main building section side outer peripheries of the secondary building section and has at least one open side outer periphery open. For example, it may be a U-shape that follows the three outer peripheries of the secondary building section 2 and has one other outer periphery open.

[0026] (3) In the above embodiment, an example was described in which the building 50 of the present invention was applied to a school, with the main building section 1 being a school building and the secondary building section 2 being a gymnasium, but of course the building of the present invention can also be applied to buildings other than school buildings.

[0027] (4) In the above embodiment, for ease of explanation, the planar shape of the secondary building section 2 is a perfect rectangle, but in the present invention, the planar shape of the secondary building section may be approximately rectangular, and for example, the open side outer periphery 2c, 2d of the secondary building section 2 may have some unevenness, etc. [Explanation of symbols]

[0028] 1 Main building 2. Sub-Building Department 2a, 2b Main building side outer periphery 2c, 2d Open side outer periphery 5 Earthquake-resistant walls 6 Parting wall 11,12 pillars 21,22 Basics 50 Buildings

Claims

1. A building comprising a main building section and a secondary building section joined to the side of the main building section and having lower rigidity than the main building section, In plan view, the secondary building portion is configured in a rectangular shape, and the main building portion is configured to follow at least two adjacent outer peripheries of the secondary building portion and open at least one outer periphery, which is an open-side outer periphery; The main building is a reinforced concrete building configured as a school building, and the secondary building is a steel-framed building configured as a gymnasium with a large column-free space inside, The main building section is provided with a seismic wall, and the secondary building section does not have a seismic wall in any area other than the boundary wall between the secondary building section and the main building section; In the secondary building section, the earthquake-resistant wall along the outer periphery of the open side is omitted, ensuring natural lighting into the secondary building section through the outer periphery of the open side.

2. 2. The building according to claim 1, wherein, in plan view, the main building section is configured in an L-shape along the two adjacent outer peripheries of the sub-building section.

3. In plan view, the main building section and the sub-building section are arranged in such a way that the two adjacent outer peripheries of the sub-building section are aligned with the inner corners of the main building section which are configured in an L-shape, In plan view, of the two adjacent outer peripheries of the secondary building section that are aligned with the inner corners of the main building section, the main building section protrudes outward from the secondary building section along one outer periphery, and the main building section recedes inward from the secondary building section along the other outer periphery; 3. The building according to claim 2, wherein the main building portion protrudes higher than the sub-building portion in the height direction.

4. A building as described in any one of claims 1 to 3, wherein the columns and foundations supporting the columns of the main building section and the secondary building section are shared at the partition wall between the main building section and the secondary building section.

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