Design method

Abstract

To design having story nature with moderate irregularity while minimizing a designer's workload.SOLUTION: A range of a building surface determined in a target range determination step 11 is divided into a plurality of areas in an area division step 12. A wind simulation is performed in a wind simulation step 13 corresponding to a location within the range determined in target range determination step 11. According to a result from simulated wind in the wind simulation step 13, a design is selected in a design selection step 15, for application to each of the plurality of areas divided in the area division step 12 among a plurality of designs prepared in a design preparation step 14.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method for designing the design of a building surface. [Background technology]

[0002] In the design of building surfaces, designs with a moderate amount of irregularity are sometimes preferred. In such cases, the irregularity has conventionally been realized based on the intuitive feeling of the designer. Patent Document 1 discloses a design support device for designing the shapes of a plurality of exterior walls having gaps between adjacent exterior walls. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-190988 Summary of the Invention [Problem to be solved by the invention]

[0004] A method of realizing irregularity based on the intuitive sense of the designer places a heavy burden on the designer. An object of the present invention is to solve such problems and reduce the burden on designers. [Means for solving the problem]

[0005] A predetermined area of ​​the building surface is divided into a plurality of regions of the same shape, wind is simulated at positions corresponding to the predetermined area, and a design to be applied to each of the plurality of divided areas is selected from a predetermined plurality of designs based on the results of the wind simulation. [Effects of the Invention]

[0006] The design to be applied to the area is selected based on the results of wind simulation, so it is possible to create a moderately irregular design while reducing the burden on the designer. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 10 is a flow diagram showing an example of a design process. [Figure 2] FIG. 1 is a perspective view showing an example of a building. [Figure 3] FIG. [Figure 4] FIG. 10 is a perspective view showing an example of an open passageway. [Figure 5] FIG. 10 is a diagram showing an example of wind simulation. [Figure 6] FIG. 10 is a diagram showing an example of an image. [Figure 7] FIG. 10 is a diagram showing an example of a design result. DETAILED DESCRIPTION OF THE INVENTION

[0008] Referring to FIG. 1, a design process 10 will be described. In the design process 10, the design of the building surface is designed. The design process 10 includes, for example, a target range determination step 11, a region division step 12, a wind simulation step 13, a design preparation step 14, and a design selection step 15.

[0009] In the target range determination step 11, the target range of the design is determined from the surface of the building. Here, the surface of the building may be an external surface of the building such as an exterior wall or roof, or an internal surface of the building such as an indoor wall, ceiling, or floor. For example, the building 80 shown in Fig. 2 has an open passageway 81 on the ground floor that can be passed through in the ±X directions, as shown in Fig. 3. Because the open passageway 81 is open, when the wind blows, the wind passes through the open passageway 81. 4, the open passage 81 has a ceiling surface 82 facing in the -Z direction, a wall surface 83 facing in the -Y direction, and a wall surface 84 facing in the +Y direction. In this example, the ceiling surface 82 and parts of the wall surfaces 83 and 84 are the target range.

[0010] The region dividing step 12 is executed, for example, after the target range is determined in the target range determining step 11. In the region dividing step 12, the target range determined in the target range determining step 11 is divided into a plurality of regions. For example, the shape of one region is set to a 20 cm x 20 cm square, and the target range is divided into a grid of the same shape.

[0011] The wind simulation step 13 is executed, for example, after the target range is determined in the target range determination step 11. In the wind simulation step 13, for example, wind tunnel simulation software is used to simulate the wind blowing around the building 80 and analyze the generated airflow. For example, assuming a situation in which wind passes through the open passage 81, a simulation is performed in which wind of a predetermined strength blows from the -X direction parallel to the open passage 81. Alternatively, if there is a seasonal wind specific to the location where the building 80 is located, that seasonal wind may be simulated. Then, for example, as shown in Fig. 5, the type of airflow occurring within a plane 91 that is parallel to and located very close to the wall surface 83 is analyzed, and an image showing the analysis results is generated. For example, a monochrome image is generated in which the direction of the airflow at a certain point is represented by an arrow, and the color intensity and length of the arrow represent the strength of the airflow. Then, for example, as shown in Fig. 6, an image 92 of a range corresponding to the target range of the wall surface 83 is cut out from the generated image.

[0012] In the design preparation step 14, a plurality of designs that can be applied to the regions divided in the region division step 12 are prepared. For example, in a design in which a 20 cm x 20 cm square panel is attached to the region to which the design is to be applied, four designs are prepared, with the panel attached at angles of 0 degrees, 3 degrees, 6 degrees, and 9 degrees. The plurality of designs are not limited to such differences in shape, and may also be different in color, such as hue or shade. If the number of designs prepared in the design preparation step 14 is small, the number of types of parts that need to be prepared during construction will be reduced, which will help reduce costs. However, if the number of designs is too small, the design may become less attractive. After examining this example, we found that sufficient design appeal can be achieved if the number of designs is four or more.

[0013] The design selection step 15 is executed, for example, after the target area is divided into a plurality of areas in the area division step 12, the wind is simulated in the wind simulation step 13, and the design is prepared in the design preparation step 14. In the design selection step 15, a design to be applied to each of the regions divided in the region division step 12 is selected from the plurality of designs prepared in the design preparation step 14 based on the results of the simulation in the wind simulation step 13. For example, the image 92 generated in the wind simulation step 13 is divided into a plurality of region images corresponding to the regions into which the target range was divided in the region division step 12. Then, for each divided region image, the contrast values ​​(an example of pixel values) of the pixels included in that region image are averaged to calculate an average value, and a design is selected based on the calculated average value. For example, if there are four types of designs prepared in the design preparation step 14 and the contrast value can take values ​​between 0 and m, if the calculated average value is less than m / 4, a first design (e.g., an installation angle of 0 degrees) is selected; if the average value is between m / 4 and m / 2, a second design (e.g., an installation angle of 3 degrees) is selected; if the average value is between m / 2 and 3m / 4, a third design (e.g., an installation angle of 6 degrees) is selected; and if the average value is 3m / 4 or more, a fourth design (e.g., an installation angle of 9 degrees) is selected. In this way, by selecting a design to be applied to all areas divided in the area division step 12, a design is created for the entire target area determined in the target area determination step 11, as shown in Figure 7.

[0014] As described above, the wind blowing around the building is analyzed through simulation, and the design to be applied to each area is selected based on the results of the analysis, thereby reducing the burden on the designer. It should be noted that all or part of the design process 10 may be automated using a three-dimensional modeling tool, a visual programming language, etc. This will further reduce the burden on the designer.

[0015] In this way, if the area affected by the wind flowing around the building is set as the target area of ​​the design, the wind blowing around the building 80 is simulated and the wind in the target area of ​​the design is analyzed. The resulting design reflects the actual wind blowing around the building, so it is not simply irregular, but embodies and visualizes the wind. This allows the design to have a narrative that is dependent on the land as its basis.

[0016] If the target area of ​​the design is an area that is not affected by the wind flowing around the building, such as an indoor area, you can simulate the wind blowing in that indoor space and analyze the wind that hits the target area. For example, you can simulate air currents caused by air conditioning or updrafts caused by temperature differences.

[0017] Alternatively, the area hit by the wind blowing around the building may be associated with the target area of ​​the design, the wind blowing around the building may be simulated, and the wind hitting the area associated with the target area may be analyzed. For example, the inner surface of a wall separating the indoor and outdoor areas of a building may be used as the target area of ​​the design, and the wind hitting the outer surface of the wall may be analyzed. This allows the same narrative quality to be imparted as the basis for the design as when the area hit by the wind blowing around the building is used as the target area of ​​the design.

[0018] The method of visualizing the results of the simulation in the wind simulation step 13 is not limited to the above-mentioned method, and other methods may be used. Furthermore, instead of selecting a design in the design selection step 15 based on the visualized results, the design may be selected directly based on the numerical values ​​of the simulated results, such as wind speed.

[0019] The above-described embodiment is an example for facilitating understanding of the present invention. The present invention is not limited thereto, and includes various modifications, changes, additions, or omissions without departing from the scope defined by the appended claims. This can be easily understood by those skilled in the art from the above description.

[0020] When designing walls in typical corridors and passageways within commercial facilities, the designers have traditionally done so intuitively. We will establish a design methodology based on the "wind" that exists around any place on Earth. For example, in a passageway that penetrates a building from the outside, the walls and ceiling surfaces are divided into a grid. The divided surfaces are sloped at a certain angle. By using the results of wind tunnel simulations to set the angle of each surface, it becomes possible to provide evidence that the building's design was guided by the surrounding wind environment, rather than relying on the intuitive feelings of the designer. Specifically, for example, the angle of the wall panel is set by the following procedure. (1) Create a 3D model of the target building. (2) Using wind tunnel simulation software, analyze the airflow occurring in the passageway of the 3D model created in (1). (3) The results of the airflow analysis are extracted as monochrome images for each of the three sides of the corridor (left and right walls and ceiling). (4) The monochrome image extracted in (3) is overlaid on each divided surface, and the results are quantified based on the "contrast." (5) The quantified contrast ratio is converted to a value between 0 and 1, and then divided by the number of panel angle types. For example, if the panel angle types are 0 / 3 / 6 / 9 degrees, the contrast values ​​for each panel surface are 0 / 0.33 / 0.67 / 1. (6) The angle of each surface is set based on the contrast value assigned to each panel in (5). This reduces the burden on the designer as they do not need to set up each individual surface themselves. This makes it possible to instantly propose designs that embody the surrounding wind, which also contributes to reducing design labor. The angle used for the panel shows sufficient design even with a small number of patterns (in this example, four patterns of metal fittings: 0 degrees, 3 degrees, 6 degrees, and 9 degrees). This can contribute to design VE, which can ensure design while simultaneously reducing the number of individual products. The angle of the wall panels installed in the through passage is set based on airflow simulation as the design basis. (1) Direct the wind perpendicular to the entire building. (2) Conduct airflow analysis. (3) The airflow conditions on the wall of the through-passage are extracted as an image from the analysis results. (4) The brightness ratio of the image assigned to each surface is converted into the angle of the panel. [Explanation of symbols]

[0021] 10 Design process, 11 Target range determination process, 12 Area division process, 13 Wind simulation process, 14 Design preparation process, 15 Design selection process, 80 Building, 81 Open corridor, 82 Ceiling surface, 83, 84 Wall surface, 91 Plan surface, 92 Image.

Claims

1. Dividing a predetermined area of ​​the building surface into a plurality of regions; simulating wind at a location corresponding to said predetermined range; selecting a design to be applied to each of the divided regions from a predetermined plurality of designs based on the results of the wind simulation; Design method.

2. the predetermined range is a part of a range hit by wind flowing around the building, In the simulating of the wind, the wind hitting the predetermined range is simulated. The design method of claim 1.

3. In the wind simulation, generating an image representing the results of the simulated wind; In selecting the design, one or more pixels of the generated image are assigned to each of the divided regions; selecting a design to apply to each of the regions based on pixel values ​​of pixels corresponding to the regions; The design method according to claim 1 or 2.

4. In selecting the design, Dividing an interval between a lower limit value and an upper limit value that the pixel value can take into intervals the number of which is the same as the number of the predetermined plurality of designs; selecting a design to be applied to the region based on which of the divided sections a pixel value of a pixel corresponding to the region falls within; The design method of claim 3.

5. the pixel value is the average of the contrast values ​​of the pixels corresponding to the region; The design method of claim 3.

6. The predetermined plurality of designs are designs in which panels of the same shape are attached at different angles. The design method according to claim 1 or 2.

Images