JP7456847B2 - Design support equipment - Google Patents

Description

The present invention relates to a design support device.

Conventionally, there has been proposed a method comprising a step of inputting basic data of a steel frame structure, and a step of generating structural member data of the steel structure based on the basic data and predetermined member arrangement rules set in advance. A design support system for steel structures with features is known (for example, Patent Document 1).

In addition, a structure that inputs CAD information for design design and generates information indicating the center line of the building based on information indicating the shape, dimensions, and position of multiple columns or multiple walls included in the CAD information for design design. An analysis information generation device is known (for example, Patent Document 2).

In addition, the number of each product member used in all planar modules included in the building, the number of structural members obtained from each product member by cutting the product member, and the size and arrangement of each structural member. A building CAD system is known that obtains information indicating the position where the building is located (for example, Patent Document 3).

Japanese Patent Application Publication No. 2004-245040 Japanese Patent Application Publication No. 2008-158793 Japanese Patent Application Publication No. 2017-10413

In the technique described in Patent Document 1, after input of basic data on an input screen is completed, structural member data of a steel structure is generated and the generation results are displayed. However, Patent Document 1 does not describe how to generate a plurality of combination candidates of structural members and find the optimal combination.

In the technique described in Patent Document 2, data for structural analysis is created in a series of steps from CAD data of a design including the volume of a building. However, Patent Document 2 does not describe how to generate a plurality of combination candidates of structural members and find the optimal combination.

Further, Patent Document 3 does not describe how to generate a plurality of combination candidates of structural members and find an optimal combination.

The present invention takes the above-mentioned facts into account and aims to support the structural design of a building using an optimal combination of structural members.

The design support device according to the present invention includes a node assigning unit that assigns nodes on the boundaries of sections in the input volume or planar shape of a building to be designed, in accordance with a predetermined node rule; a structural member candidate generation unit that divides the volume or planar shape between the nodes according to the division rule, and generates combination candidates of structural members to be placed in the building based on the division results; , a score calculation unit that calculates a score for each of the plurality of division rules using a predetermined objective function for the structural member combination candidates generated by the structural member candidate generation unit. has been done.

According to the design support device according to the present invention, the node assignment unit assigns nodes on the boundaries of sections in the input volume or planar shape of the building to be designed, in accordance with a predetermined node rule. The structural member candidate generation unit divides the volume or planar shape between the nodes according to a plurality of predetermined division rules, and based on the division results, the structural member to be placed in the building. Generate combination candidates. Then, the score calculation unit calculates a score for each of the plurality of division rules for the structural member combination candidates generated by the structural member candidate generation unit using a predetermined objective function.

In this way, the volume or planar shape is divided between nodes for each of a number of division rules, and candidate combinations of structural members to be placed on the building are generated based on the division results, and a score is calculated using a predefined objective function, thereby assisting in the structural design of a building using an optimal combination of structural members.

In the design support device according to the present invention, the node rule provides nodes at both ends of the boundary line, and provides the nodes so that the boundary line separated by the nodes is equal to or less than a specified maximum element length. That's true. Thereby, nodes can be appropriately added to the boundary line.

In the design support device according to the present invention, the plurality of division rules include dividing the volume into a hexahedron, dividing the volume into a pentahedron, and dividing the volume into a rectangle in a plan view. The method may include dividing, or dividing so that the planar shape becomes a triangle. Thereby, division results of various volumes or planar shapes can be obtained.

In the design support device according to the present invention, the objective function includes the balance of the divided volumes or planar shapes, the degree of density of structural members, the degree of dispersion of structural members, or the span of structural members. This allows for the structural design of a building using the optimal combination of structural members, taking into consideration the balance of the divided volumes or planar shapes, the degree of density of structural members, the degree of dispersion of structural members, or the span of structural members. We can support you.

The design support apparatus according to the present invention may further include a display unit that displays combination candidates of the structural members selected according to the score, superimposed on the volume. This makes it possible to support the structural design of buildings more effectively.

As explained above, according to the design support device of the present invention, a volume or planar shape is divided between nodes according to a plurality of division rules, and based on the division results, combination candidates of structural members to be placed in the building are By generating this and calculating the score using a predetermined objective function, it is possible to support the structural design of a building using an optimal combination of structural members.

FIG. 1 is a block diagram showing a design support device according to an embodiment of the present invention. FIG. 1 is a functional block diagram showing a design support device according to an embodiment of the present invention. FIG. 3 is a diagram showing an example of an image representing the volume of a building. FIG. 3 is a diagram illustrating an example in which nodes are added to boundaries of a planar shape of a building. FIG. 3 is a diagram illustrating an example in which the planar shape of a building is divided between nodes. FIG. 3 is a diagram illustrating an example of a screen that displays a combination of columns superimposed on the volume of a building. 3 is a flowchart showing the contents of a design support processing routine of the design support apparatus according to the embodiment of the present invention. FIG. 3 is a diagram illustrating an example in which the planar shape of a building is divided between nodes. FIG. 3 is a diagram illustrating an example of the planar shape of a building, which is color-coded according to the purpose of the room.

Embodiments of the present invention will be described in detail below with reference to the drawings.

<Configuration of design support device according to the present invention>
As shown in FIG. 1, a design support apparatus 100 according to an embodiment of the present invention includes a CPU 12, a graphic card 13, a GPU 14, a RAM 16, an HDD 18, a communication interface 21, and a bus 23 for interconnecting these. ing.

The CPU 12 and GPU 14 execute various programs. The RAM 16 is used as a work area etc. when the CPU 12 executes various programs. The HDD 18 as a recording medium stores various programs and data including a program for executing a design support processing routine to be described later.

The design support apparatus 100 according to the present embodiment is shown in FIG. 2 when expressed in functional blocks along with a program for executing a design support processing routine. The design support device 100 includes an input section 10, a calculation section 20, and an output section 50.

The input unit 10 receives the volume or planar shape of the building to be designed as input. For example, a planar shape obtained by projecting a three-dimensional space of the volume of a building to be designed onto a two-dimensional plane as shown in FIG. 3 is accepted as input.

The calculation unit 20 includes a node assignment unit 22, a structural member candidate generation unit 24, a score calculation unit 26, and a display unit 28.

The node assigning unit 22 assigns a plurality of nodes on the boundaries of sections in the input building volume or planar shape according to a predetermined node assigning rule (FIG. 4). Specifically, as a node assignment rule, nodes are assigned to both ends of the boundary line, and the nodes are assigned equally so that the boundary line separated by the nodes is equal to or less than the specified maximum element length. Note that the nodes may be provided so that the density of the nodes is not uniform; for example, the nodes may be provided so that the density of the nodes increases or decreases toward both ends.

The structural member candidate generation unit 24 divides the volume or planar shape between nodes in accordance with the division rule (FIG. 5). For example, the volume division rules include dividing only into hexahedrons, only dividing into pentahedrons, and dividing into pentahedrons and hexahedrons. Divide according to one of the following rules:

In addition, the division rules for planar shapes include dividing only into quadrangles, dividing only into triangles, and dividing into triangles and squares. Divide according to the selected rule.

Note that if the dividing rule is to divide into triangles in two dimensions, it is possible to handle any planar shape (FIG. 6). In this case, a structural member with a certain degree of shape can be produced. Further, the interval between nodes may be adjusted for each boundary line of each room.

The above division is repeated until a predetermined repetition end condition is met. The repetition end condition may be that the number of repetitions reaches an upper limit, that all divided volumes or plane shapes satisfy a predetermined condition, or the like.

The structural member candidate generation unit 24 generates combination candidates of structural members to be placed in the building for each type of structural member (column, beam, wall) based on the division result of the volume or planar shape of the building.

For example, based on the generation rules for structural members for divided volumes or planar shapes that are determined for each type of structural member (columns, beams, walls, etc.), structural members are created on the boundaries of divided volumes or planar shapes. and generate combination candidates of structural members.

The above process of the structural member candidate generation unit 24 is repeated while changing the division rule. As a result, a plurality of sets of structural member combination candidates generated for each type of structural member (column, beam, wall, etc.) are obtained.

The score calculation unit 26 calculates a score for each division rule using a predetermined objective function for the combination candidates of structural members generated for each type of structural member by the structural member candidate generation unit 24 in accordance with the division rule.

For example, for candidate combinations of structural members generated for each type of structural member, the objective function is expressed using the balance of divided volumes or planar shapes, the degree of density/dispersion of structural members, and the span of structural members. Calculate the score using Specifically, the better the balance of the divided volumes or planar shapes, the higher the score, the closer the density/dispersion of the structural members to the standard value, the higher the score, and the closer the span of the structural member is to the standard value. The score is calculated using an objective function that is determined so that the closer it is to the score, the higher the score.

The score calculation unit 26 determines possible combinations of structural members according to the calculated score. For example, a set of candidate combinations of structural members for each type of structural member with the maximum score is determined.

The display unit 28 causes the output unit 50 to display the structural member combination candidates for each type of structural member determined by the score calculation unit 26, superimposed on the volume or planar shape (FIG. 7). FIG. 7 shows an example in which the generated combination of columns is displayed superimposed on the volume of the building to be designed.

<Operation of design support device>
Next, the operation of the design support apparatus 100 according to the embodiment of the present invention will be explained.

First, when the input unit 10 receives the volume or planar shape of the building to be designed as input, the design support apparatus 100 executes a design support processing routine shown in FIG. 8 .

In step S100, the node providing unit 22 obtains the input volume or planar shape of the building.

In step S102, the node assigning unit 22 assigns a plurality of nodes on the boundary line of the section in the input volume or planar shape of the building according to a predetermined node assigning rule.

In step S104, the structural member candidate generation unit 24 repeatedly divides the volume or planar shape between nodes in accordance with the division rule.

In step S106, the structural member candidate generation unit 24 generates combination candidates of structural members to be placed in the building for each type of structural member (column, beam, wall) based on the division result of the volume or planar shape of the building. do.

In step S108, it is determined whether the processes of steps S104 to S106 have been repeated for all division rules. If there is a division rule that has not been processed in steps S104 to S106, the process returns to step S104 and division is performed according to the division rule. On the other hand, if the processing in steps S104 to S106 is repeated for all division rules, the process advances to step S110.

In step S110, the score calculation unit 26 calculates predetermined structural member combination candidates generated for each type of structural member by the structural member candidate generation unit 24 in accordance with the plurality of division rules. The score is calculated using the objective function.

In step S112, the score calculation unit 26 determines combination candidates of structural members according to the calculated score.

In step S114, the display unit 30 superimposes the structural member combination candidates for each type of structural member determined in step S112 above on the volume or planar shape and displays them on the output unit 50, and the design support processing routine end.

As explained above, according to the design support apparatus according to the embodiment of the present invention, nodes are provided on the boundaries of sections in the volume or planar shape of a building along a predetermined node rule, and a predetermined division rule is applied. The volume or planar shape is divided between nodes along the lines, and based on the division results, candidates for combinations of structural members are generated repeatedly while changing the division rule. For each candidate combination, a score is calculated using an objective function. Calculate. Thereby, it is possible to support structural design of a building using an optimal combination of structural members.

The present invention is not limited to the above-described embodiment, and various modifications and applications are possible without departing from the spirit of the invention.

For example, in the embodiment described above, the usage of each space obtained by dividing the input volume or planar shape of a building is accepted, and for each divided space, the corresponding structural member combination candidates generated for each type of structural member are determined. The score may be calculated using an objective function determined for the purpose. For example, as shown in the top view shown in Fig. 9, a planar shape that represents a building and is color-coded according to the purpose of the room is input, and structural member combination candidates are generated for each room and for each type of structural member. , the score may be calculated using an objective function determined for the purpose of the room.

Further, the program of the present invention may be provided by being stored in a storage medium.

10 Input unit 20 Calculation unit 22 Node assignment unit 24 Structural member candidate generation unit 26 Score calculation unit 28 Display unit 30 Display unit 50 Output unit 100 Design support device

Claims (5)

a node assigning unit that assigns nodes on the boundaries of sections in the input volume or planar shape of the building to be designed, in accordance with predetermined node rules;
A structure that divides a volume or a planar shape between the nodes according to a plurality of predetermined division rules, and generates combination candidates of structural members to be placed in the building based on the division results. A member candidate generation unit;
a score calculation unit that calculates a score for each of the structural member combination candidates generated by the structural member candidate generation unit for each of the plurality of division rules, using a predetermined objective function;
Design support equipment including. 2. The design according to claim 1, wherein the node rule is to provide nodes at both ends of the boundary line and to provide the nodes such that the boundary line separated by the nodes is equal to or less than a specified maximum element length. Support equipment. The plurality of division rules are:
Dividing the volume into a hexahedron, dividing the volume into a pentahedron, dividing the volume into a quadrangle, or dividing the volume into a triangle. 3. The design support apparatus according to claim 1, further comprising: The objective function according to any one of claims 1 to 3, wherein the objective function includes the balance of the divided volumes or planar shapes, the degree of density and dispersion of the structural members, or the span of the structural members. Design support equipment. The design support device according to any one of claims 1 to 4 further includes a display unit that displays the candidate combinations of the structural members selected according to the score by superimposing them on the volume or planar shape.