JP6196490B2 - Frame design method - Google Patents

Description

  The present invention relates to a frame structure design method capable of obtaining an optimal solution for the arrangement of small beams in a short time.

  For example, a building frame of a building by a shaft construction method has structural members including columns and beams. Further, the beam includes a plurality of large beams that horizontally connect between the columns, and a small beam that further classifies the horizontal frame surrounded by the large beams.

  Design factors including the arrangement and cross-sectional shape of the beam are determined according to the shape of the building and the load conditions. 2. Description of the Related Art Conventionally, a design factor that can increase the strength of a frame body while satisfying the shape and load conditions of a building has been obtained using a computer.

Japanese Patent No. 4712075

  For example, in order to obtain the optimal solution for the arrangement of the small beams, for example, it is conceivable to create a plurality of types of arrangement patterns for the small beams and calculate the optimal solution for the arrangement of the small beams. However, such a method has a problem that an undesired arrangement pattern in which no beam is arranged is created at a position where the beam is required. Such an undesired arrangement pattern is excluded from the optimum solution of the arrangement of the beam. Therefore, as the number of undesired arrangement patterns increases, the calculation efficiency decreases, and there is a problem that it takes a lot of time to obtain the optimum solution for the arrangement of the beam.

  The present invention has been devised in view of the above circumstances, and has as its main object to provide a frame structure design method capable of obtaining an optimal solution for the arrangement of small beams in a short time.

  The frame structure design method according to the present invention includes a column and a beam, and the beam includes a plurality of large beams that horizontally connect the columns, and a plurality of small frames that further divide a horizontal frame plane surrounded by the large beams. A method for designing a structure of a building including a beam using a computer, wherein the horizontal frame is arranged in accordance with the structure of the building. A condition input step including a planned position and inputting a design constraint condition including the planned layout position to the computer, and numerical information for the computer to specify the arrangement of the beam based on the design constraint condition A population generation step of generating a population composed of a plurality of types of chromosome information, and an optimization calculation step in which the computer uses the population to calculate an optimal solution for the arrangement of the beam based on a genetic algorithm Including The condition input step inputs a beam arrangement list including first beam arrangement information for arranging the first beam that passes through the planned arrangement position, and the group generation step selects from the beam arrangement list The chromosome information is generated so that the first beam is necessarily included based on the first beam arrangement information.

  In the frame structure designing method according to the present invention, the chromosome information defines a first information part for defining the first beam and a second beam defined regardless of the planned placement position. Preferably, in the group generation step, the first information portion is defined based on the first beam arrangement information selected from the beam arrangement list.

  In the frame structure designing method according to the present invention, the first information portion is set, for each of the first beam beams, a first beam beam that defines an arrangement of the first beam beams. It is preferable that one beam beam gene includes section information for specifying the first beam arrangement information and direction information indicating the direction of the first beam.

  In the frame structure designing method according to the present invention, each horizontal frame surface is divided into a plurality of small frame surfaces by the small beams, and the second information portion is divided into a plurality of small beam surfaces for each second small beam. 2 trabecular genes are set, and the 2nd trabecular gene includes the frame surface information for specifying the horizontal frame surface or the frame surface where the second beam is arranged, and the direction of the second beam. It is desirable to further include direction information to indicate and arrangement information for specifying the position of the second beam.

  In the frame design method according to the present invention, the first beam beam includes order information indicating an order in which the first beam is arranged on the horizontal frame, and the second beam beam is It includes order information indicating the order in which the second beam is arranged on the horizontal frame, and the order of the second beam is the order of the first beam used in the first information portion. It is desirable to be assigned except.

  In the frame structure designing method according to the present invention, the beam arrangement list includes second beam arrangement information for arranging a second beam defined regardless of the planned arrangement position, and the group In the generating step, the chromosomes are included so that the first and second beamlets are included based on the first and second beamlet arrangement information selected from the beam arrangement list. It is desirable to generate information.

  In the frame design method according to the present invention, the chromosome information is a beam in which an arrangement of the first beam and the second beam is defined for each of the first beam and the second beam. A gene is set, and the trabecular gene indicates section information for specifying the first trabecular arrangement information or the second trabecular arrangement information, and the direction of the first trabecular or the second trabecular It is desirable to include direction information.

  In the frame design method according to the present invention, each horizontal frame plane is divided into a plurality of small frame planes by the small beams, and the small beam gene is the first small beam or the second small beam. It is desirable to further include frame surface information for specifying the horizontal frame surface or the small frame surface on which is arranged.

  In the frame design method according to the present invention, it is preferable that the planned arrangement position includes a planned arrangement straight line specified by at least two coordinate values in the horizontal frame plane.

  In the design method of the frame according to the present invention, it is preferable that the building has an opening in the horizontal frame surface, and the planned arrangement straight line is set to at least a part of the periphery of the opening. .

  In the frame structure designing method according to the present invention, it is desirable that the planned arrangement position includes a planned arrangement point specified by one coordinate value in the horizontal frame plane.

  In the design method of the frame body according to the present invention, it is preferable that the building has a bundle of sheds supported by the horizontal frame surface, and the arrangement planned point is set to a position for supporting the shed bundle. .

  The present invention includes a column and a beam, and the beam includes a plurality of large beams that horizontally connect between the columns, and a plurality of small beams that further section a horizontal frame surrounded by the large beams. This is a method for designing a frame using a computer. The horizontal frame includes the planned position of the beam where the beam is required based on the structure of the building.

  In the frame design method of the present invention, a condition input step for inputting a design constraint condition including a planned layout position, and a plurality of pieces of chromosome information which are numerical information for specifying the arrangement of the beam based on the design constraint condition The method includes a group generation step for generating a group of types, and an optimization calculation step for calculating an optimal solution for the arrangement of the beam using the group based on a genetic algorithm. Accordingly, in the present invention, chromosome information can be evolved in time series from a small number of samples based on a genetic algorithm, so that an optimal solution for the arrangement of beamlets can be obtained in a short time.

  In the condition input step, a beam arrangement list including first beam arrangement information for arranging the first beam passing through the planned arrangement position is input. Then, in the group generation step, chromosome information is generated based on the first beam arrangement information selected from the beam arrangement list so that the first beam is necessarily included. In such a frame design method, it is possible to prevent chromosome information defining an undesirable arrangement pattern in which a small beam is not arranged at a planned arrangement position. Therefore, in the frame design method of the present invention, it is possible to prevent a reduction in calculation efficiency and to obtain an optimal solution for the arrangement of the small beams in a short time.

It is a perspective view of the computer which performs the design method of this embodiment. It is a perspective view which shows the frame of a building. FIG. 3 is a plan view of the frame body of FIG. 2. (A) is a plan view of the horizontal frame surface on which the first beam is arranged, and (b) is a plan view of the horizontal frame surface on which the second beam is arranged. It is a flowchart which shows an example of the process sequence of the design method of this embodiment. It is a flowchart which shows an example of the process sequence of the basic information input process of this embodiment. It is a perspective view of the frame of a building. (A) is a top view of the 1st horizontal frame surface which excluded the small beam, (b) is a top view of the 1st horizontal frame surface where the small beam was arrange | positioned. It is a key map showing an example of a beam arrangement list. It is a conceptual diagram of the group which consists of multiple types of chromosome information. It is a conceptual diagram which shows an example of the 1st information part and 2nd information part of a 1st horizontal frame. It is a flowchart which shows an example of the process sequence of the group production | generation process of this embodiment. It is a top view explaining arrangement | positioning of the 1st small beam defined by the leftmost 1st small beam locus. It is a top view explaining arrangement | positioning of the 1st beam defined in the 2nd 1st beam locus from the left. It is a top view which shows the horizontal frame in which the small beam is not arrange | positioned. (A), (b) is a top view of the horizontal frame in which one small beam is arrange | positioned. It is a top view explaining arrangement | positioning of the 1st 1st small beam. It is a top view explaining arrangement | positioning of the 2nd 1st small beam. It is a top view explaining arrangement | positioning of the 3rd 1st small beam. It is a top view explaining arrangement | positioning of the 4th 1st small beam. It is a top view explaining arrangement | positioning of the 5th 1st small beam. It is a top view explaining arrangement | positioning of the 1st 2nd small beam. It is a top view explaining arrangement | positioning of the 2nd 2nd small beam. It is a flowchart which shows an example of the process sequence of an optimization calculation process. It is a diagram which shows the calculation result of a 1st target variable and a 2nd target variable. It is a flowchart which shows an example of the process sequence of the gene operation process of this embodiment. It is a flowchart which shows an example of the process sequence of the next generation group production | generation process of this embodiment. (A) is a conceptual diagram showing chromosome information before crossover, (b) is a conceptual diagram showing chromosome information after crossover. It is a conceptual diagram explaining a mutation. It is a conceptual diagram which shows the chromosome information of other embodiment of this invention. (A) is a top view of the 1st horizontal frame surface which excluded the small beam of this embodiment, (b) is a top view of the 1st horizontal frame surface where the small beam is arrange | positioned. It is a conceptual diagram which shows an example of the beam arrangement list | wrist of other embodiment of this invention. It is a conceptual diagram which shows an example of a frame surface list. It is a flowchart which shows an example of the process sequence of the group production | generation process of other embodiment of this invention. It is a conceptual diagram which shows an example of the trabecular gene of the 1st horizontal frame surface of other embodiment of this invention. It is a top view explaining arrangement | positioning of the 1st small beam. It is a top view explaining arrangement | positioning of the 2nd small beam. It is a top view explaining arrangement | positioning of the 3rd small beam. It is a top view explaining arrangement | positioning of the 4th small beam. It is a top view explaining arrangement | positioning of the 5th small beam. It is a top view explaining arrangement | positioning of the 6th small beam. It is a top view explaining arrangement | positioning of the 7th small beam.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The frame structure design method of the present embodiment (hereinafter sometimes simply referred to as “design method”) is a method for designing a frame structure of a building such as an industrialized house using a computer, for example.

  FIG. 1 is a perspective view of a computer that executes the design method of the present embodiment. The computer 1 includes a main body 1a, a keyboard 1b, a mouse 1c, and a display device 1d. The main body 1a is provided with, for example, an arithmetic processing unit (CPU), a ROM, a working memory, a storage device such as a magnetic disk, and disk drive devices 1a1, 1a2.

  The storage device stores in advance processing procedures (programs) of the design method of the present embodiment. This processing procedure is executed by the arithmetic processing unit of the computer 1. Therefore, the computer 1 is configured as a design apparatus 1A for implementing the design method of the present invention.

  FIG. 2 is a perspective view showing a frame of a building, and FIG. 3 is a plan view of the frame of FIG. The frame 2 of the building B has structural members including, for example, columns 3 and beams 4. The beam 4 includes a plurality of large beams 7 that horizontally connect the columns 3 and 3, and a small beam 8 that further divides the horizontal frame 9 surrounded by the large beams 7. The large beam 7 and the small beam 8 are configured as a floor beam for supporting a floor (not shown) of two or more floors or a roof beam for supporting the roof 10. Moreover, the large beam 7 and the small beam 8 are comprised from the substantially horizontal H-shaped shape steel etc., for example.

  Further, the building B has an opening 11 such as a staircase or a stairwell on each horizontal frame surface 9 and a shed bundle 12 supported by the horizontal frame surface 9. The opening 11 is formed by the large beam 7 or the small beam 8. The opening 11 of the present embodiment is formed of, for example, a first side 11a, a second side 11b, a third side 11c, and a fourth side 11d on the horizontal frame 9 at the lower left in FIG. Has been. Moreover, the shed bundle 12 is comprised from the 1st shed bundle 12a arrange | positioned in the horizontal frame surface 9 of the lower left of FIG. Such a shed bundle 12 is supported by the horizontal frame 9 by arranging the large beam 7 or the small beam 8 at the lower end thereof.

  FIG. 4A and FIG. 4B are plan views of the horizontal frame. As shown in FIG. 4A, the first beam 8 a is arranged on the horizontal frame 9. Thereby, the horizontal frame 9 is divided into two small frames 13. As shown in FIG. 4B, the horizontal frame 9 has three small frames 8b by arranging the second beam 8b on one of the two small frames 13 and 13. It is divided into 13. Thus, the horizontal frame 9 is divided into a plurality of small frames 13 by arranging the small beams 8.

  In this embodiment, in FIG. 4A, when divided into two small frame surfaces 13, the small frame surface 13 closest to the reference point 15a, which is the lower left apex of the horizontal frame surface 9, is the first small frame. The frame surface 13a is distinguished from the other frame surface 13b as the second frame surface 13b. Furthermore, in the present embodiment, in FIG. 4B, when the second small construction surface 13b (shown in FIG. 4A) is further divided into two small construction surfaces 13, the second small construction surface 13b. The small frame surface 13 closest to the reference point 15b, which is the lower left apex, is defined as the second small frame surface 13b, and the other small frame surface 13 is distinguished as the third small frame surface 13c.

  FIG. 5 is a flowchart illustrating an example of a processing procedure of the design method according to the present embodiment. In this design method, an optimal solution for the arrangement of the small beams 8 (shown in FIG. 4) is calculated, and the frame 2 and the building B are manufactured based on the optimal solution.

  In the design method of the present embodiment, first, basic information of the building B is input to the computer 1 (basic information input step S1). FIG. 6 is a flowchart illustrating an example of a processing procedure of a basic information input process according to the present embodiment.

  In the basic information input step S1 of the present embodiment, first, the shape of the building B is input to the computer 1 (step S11). FIG. 7 is a perspective view of a building frame of a building. In this step S11, for example, the shapes and arrangement positions of the pillar 3, the beam 7, the horizontal frame 9 and the roof 10 (shown in FIG. 3) of the building B shown in FIGS. The In this step S11, the beam 8 (shown in FIGS. 2 and 3) for which the optimum solution is calculated is not input.

  As shown in FIG. 7, the arrangement, length, and the like of the pillar 3 and the large beam 7 are set with reference to a predetermined horizontal module or vertical module. The pillar 3 and the large beam 7 are fixed by, for example, a pin 16 in which a bolt is modeled. Thereby, the frame 2 and the horizontal frame 9 excluding the small beam 8 (shown in FIG. 2) are set. Furthermore, the long beam 7 of the present embodiment is arranged such that its longitudinal direction is along the X-axis direction or the Y-axis direction.

  Further, for the pillar 3 and the large beam 7, for example, parameters necessary for structural calculation such as a cross-sectional shape and a secondary moment of the cross-section are set. Such arrangement and parameters of the pillars 3 and the large beams 7 are all stored in the computer 1 as numerical data.

  The horizontal frame 9 according to the present embodiment includes a first horizontal frame 9a to a fourth horizontal frame 9d that supports the roof 10 (shown in FIG. 3), and a fifth horizontal frame 9e to a second frame that supports the second floor. 8 horizontal frame 9h.

  FIG. 8A is a plan view of the first horizontal frame 9a without the small beam 8, and FIG. 8B is a plan view of the first horizontal frame 9a on which the small beam 8 is arranged. As shown in FIG. 8A representatively of the first horizontal frame 9a, each horizontal frame 9a-9h is defined with a plurality of nodes 17 arranged at equal intervals according to the horizontal module. ing. Such horizontal frame surfaces 9 a to 9 h are stored in the computer 1.

  The arrangement and shape of the roof 10 (shown in FIG. 3) are set on the basis of the horizontal module or the vertical module, similarly to the pillar 3 and the beam 4. Such an arrangement of the roof 10 is stored in the computer 1 as numerical data.

  Next, in this embodiment, the load condition of the building B (shown in FIG. 2) is input to the computer 1 (step S12). The load condition is information regarding an external force acting on the building B. The load condition is input based on various specifications of the building B, for example, an outer wall specification, a floor specification, a roof covering material, a fire resistance specification, an earthquake resistance grade, or a wind resistance grade. Such a load condition is also numerical data and is stored in the computer 1.

  The basic building information can be set using software such as general CAD and a consistent structural calculation system. In the present embodiment, the two-story building B is shown as an example, but it may be, for example, a one-story building or a three-story building or more.

  Next, a design constraint condition for arranging the beam 8 on the frame 2 is input to the computer 1 (condition input step S2). The design constraint conditions of the present embodiment include the orientation of the small beam 8 and the fixable position in each horizontal frame surface 9a to 9h.

  As shown in FIG. 8B, the direction of the small beam 8 of the present embodiment is defined with reference to the longitudinal direction. This longitudinal direction is limited to the X-axis direction or the Y-axis direction in the drawing. The longitudinal direction is not limited to such a mode, and may be limited to any direction including, for example, a component in the X-axis direction and a component in the Y-axis direction.

  As a fixable position of the small beam 8 of this embodiment, it arrange | positions on the basis of the node 17 defined according to the horizontal module. Both ends 8t and 8t of the small beam 8 are arranged so as to contact the node 17 defined by the large beam 7 or the small beam 8. In addition, in the drawing, “●” indicates a win and “◯” indicates a loss of the big beam 7 or the small beam 8.

  Further, the design constraint condition includes an upper limit value of the number of small beams 8 arranged on each horizontal frame 9a to 9h. This upper limit value is set to be equal to or less than the maximum number of small beams 8 that can be arranged on each horizontal frame surface 9a to 9h. Moreover, an upper limit can be arbitrarily set according to various conditions, such as intensity | strength required for the frame 2, and cost. For example, “7” is set as the upper limit value in the present embodiment.

  As shown in FIG. 8A, the design constraint condition includes a planned placement position 21 of the small beam 8. The planned placement position 21 is a position where the small beam 8 is required on each of the horizontal frame surfaces 9a to 9h. Such a planned placement position 21 is set based on the structure of the building B (shown in FIG. 2). Further, the small beam 8 (hereinafter, simply referred to as “first small beam 29”) passing through the planned placement position 21 is a small beam 8 arranged over the entire planned placement position 21. In addition, the 1st small beam 29 may be arrange | positioned protruding from the arrangement | positioning planned position 21, for example.

  The planned placement position 21 is set based on the nodes 17 of the horizontal frame surfaces 9a to 9h. The planned placement position 21 of the present embodiment includes a planned placement straight line 21a defined on each horizontal frame 9a-9h and a planned placement point 21b.

  The planned placement straight line 21a is specified by at least two coordinate values (two coordinate values in the present embodiment) on each of the horizontal frame surfaces 9a to 9h. This coordinate value is the coordinate value of the nodes 17 and 17 at which both ends of the planned arrangement line 21a are arranged. Such an arrangement planned straight line 21a is set, for example, around the opening 11 (shown in FIG. 3) or at an arrangement position of a handrail (not shown). The planned placement straight line 21 a of the present embodiment is set at least at a part around the opening 11 and is defined as the planned opening position 22. The planned opening position 22 is set for each of the horizontal frame surfaces 9a to 9h.

  The planned opening position 22 is, for example, a first planned opening position 22a and a second side 11b (in FIG. 3) that define the position of the first side 11a (shown in FIG. 3) of the opening 11 in the first horizontal frame 9a. 2nd planned opening position 22b that defines the position of the third side 11c (shown in FIG. 3), the third planned opening position 22c that defines the position of the third side 11c (shown in FIG. 3), and the position of the fourth side 11d (shown in FIG. 3) Includes a fourth planned opening position 22d.

  The planned placement point 21b is specified by the coordinate value of one node 17 on each horizontal frame 9a to 9h. Such an arrangement planned point 21b is set at, for example, a position for supporting the shed 12 or a column position (in the case of a flat roof) of a solar panel installation stand. The planned placement point 21b of the present embodiment is set to a position that supports the shed bundle 12 and is defined as the planned shed bundle position 23. The planned shed bundle position 23 is set for each of the horizontal frame surfaces 9a to 9h.

  The shed bundle planned position 23 includes, for example, the first shed bundle planned position 23a that defines the arrangement position of the first shed bundle 12a shown in FIG. 3 on the first horizontal frame 9a. These design constraint conditions are stored in the computer 1.

  As shown in FIG. 8 (b), the first small beam 29 is moved to the first opening planned position 22a (FIG. 8 (a)) on the first horizontal frame surface 9a. A first opening beam 29a passing through the second opening planned beam position 22b (shown in FIG. 8A), and a third opening beam position 22c (shown in FIG. 8A). And a third aperture beam 29d passing through a fourth planned opening position 22d (shown in FIG. 8A). Furthermore, the first shed beam 29 includes a first shed bundle beam 29e passing through the first shed bundle planned position 23a.

  In the condition input step S2 of the present embodiment, a small beam arrangement list is input for each of the horizontal frame surfaces 9a to 9h based on the planned arrangement position 21 shown in FIG. The beam arrangement list of the present embodiment includes first beam arrangement information for arranging the first beam 29 shown in FIG. 8B. FIG. 9 is a conceptual diagram of a beam arrangement list on the first horizontal frame surface 9a of the present embodiment.

  The small beam arrangement list 25 includes, for example, the first opening small beam 29a, the second opening small beam 29b, the third opening small beam 29c, and the fourth opening small size shown in FIG. 8B on the first horizontal frame 9a. Each first beam arrangement information 36a for arranging the beam 29d and the first shed bundle beam 29e is defined. The first beam arrangement information 36a includes division information for distinguishing the beam beams 29a to 29e and position information for specifying the positions of the beam beams 29a to 29e.

As the segment information, a numerical range assigned to each first beam 29 is set in each of the horizontal frames 9a to 9h (shown in FIG. 7). For example, in the first horizontal frame 9a, the segment information of each of the small beams 29a to 29e (shown in FIG. 8B) has a numerical range of 0.00 to 1.00 for each of the small beams 29a to 29e. It consists of a numerical range divided by 5 minutes. The details of the classification information of this embodiment are as follows.
Classification information of the first aperture beam 29a: 0.00 or more and 0.20 or less Classification information of the second aperture beam 29b: 0.21 or more and 0.40 or less Classification information of the third aperture beam 29c: 0. 41 or more and 0.60 or less Classification information of the fourth opening beam 29d: 0.61 or more and 0.80 or less Classification information of the first shed bundle beam 29e: 0.81 or more and 1.00 or less

  In addition, although the division | segmentation information of this embodiment showed what divides the numerical range of 0-1 equally for every 1st small beam 29, it is not necessarily limited to this. For example, the segment information of a specific first beam 29 may be set to a larger numerical range than the segment information of other first beam 29.

The position information is defined based on the planned placement position 21 (shown in FIG. 8A) of each first beam 29. For example, on the first horizontal frame surface 9a, the position information of the first opening beam beam 29a to the fourth opening beam beam 29d includes the nodes 17 and 17 (both ends of the first opening scheduled position 22a to the fourth opening scheduled position 22d ( The coordinate values shown in FIG. 8A are set. Further, as the position information of the first shed bundle beam 29e, the coordinate value of one node 17 of the first shed bundle planned position 23a is set. Such position information designates the positions where the small beams 29a to 29e are arranged. Details of the position information of this embodiment are as follows. These design constraint conditions are stored in the computer 1.
A: Coordinate values of nodes at both ends of the first opening planned position B: Coordinate values of nodes at both ends of the second opening planned position C: Coordinate values of nodes at both ends of the third opening planned position D: Fourth opening position Coordinate values of nodes at both ends E: Coordinate values of nodes at the first shed bundle planned position

  Next, the computer 1 generates a group composed of a plurality of types of chromosome information based on the design constraint condition (group generation step S3). Chromosome information is numerical information for specifying the arrangement of the small beams 8 (shown in FIG. 8B). FIG. 10 is a conceptual diagram of a group composed of a plurality of types of chromosome information, and FIG. 11 is a conceptual diagram showing an example of the first information portion and the second information portion of the first horizontal frame 9a. FIG. 12 is a flowchart illustrating an example of the processing procedure of the group generation step S3 of the present embodiment.

  In the group generation step S3 of the present embodiment, first, a small beam 8 (shown in FIG. 8B) is defined in the computer 1 (step S31). The small beam 8 is numerical data in which a cross-sectional shape, a cross-sectional secondary moment, and the like are defined. Such numerical data is stored in the computer 1.

  Next, chromosome information is defined in the computer 1 (step S32). As shown in FIG. 10, each chromosome information 26 includes a first beam for defining the first beam 29 (shown in FIG. 8B) for each of the horizontal frames 9a to 9h shown in FIG. The information part 27 and the 2nd information part 28 for defining the 2nd small beam 30 (shown in FIG.8 (b)) defined irrespective of the arrangement plan position 21 are included. By setting a plurality of types of such chromosome information 26, a group 31 is generated.

  In the first information portion 27, for each of the first beam beams 29 (shown in FIG. 8B), the first beam beam that can store the first beam beam that defines the arrangement of the first beam beams 29 is stored. A locus 33 is set. The first beam beam locus 33 is assigned to each first beam beam 29 in each horizontal frame surface 9a to 9h. Therefore, as shown in FIG. 11, in the first information portion 27 of the first horizontal frame 9a, five first beam traits 33 (33A to 33E) are defined. In the present embodiment, based on the first beam beam gene stored in the first beam beam locus 33, the first beam beam 29 is sequentially arranged from the first beam beam locus 33 arranged on the leftmost side in the drawing. Is defined.

  The first beam beam gene of the present embodiment includes classification information for specifying the first beam arrangement information 36a in the beam arrangement list 25 (shown in FIG. 9) and the first beam 31 (FIG. 8B). Direction information indicating the direction of Accordingly, each first trabecular locus 33 is set with a section locus 33a capable of storing section information and a direction locus 33b capable of storing direction information. Such a first information portion 27 is stored in the computer 1.

  In the second information portion 28, a second beam beam gene is set for each second beam beam 30 (shown in FIG. 8B). Accordingly, at least one second beam loci 34 in which the second beam beam gene is stored is set in the second information portion 28.

  The second beam beam locus 34 has an upper limit value (seven in this embodiment) of the number of beam beams 8 set in the design constraint condition on each horizontal frame 9a to 9h (shown in FIG. 7). Only the same number (two in the present embodiment) as the difference from the number of first beam loci 33 in the first information portion 27 (five in the present embodiment) is created. As a result, the chromosome information 26 is obtained by combining the first beam beam locus 33 and the second beam beam locus 34 on each horizontal frame 9a to 9h, and the upper limit of the beam 8 set by the design constraint condition. The gene locus for the value can be set. In the second information portion 28 of the present embodiment, based on the second trabecular gene stored in the second trabecular locus 34, in order from the second trabecular locus 34 arranged on the leftmost in the figure, The arrangement of the second beam 30 is defined.

  The second beam beam gene of the present embodiment is frame surface information that identifies the horizontal frame surface 9 or the beam frame surface 13 (shown in FIG. 4) on which the second beam 30 (shown in FIG. 8B) is arranged. And direction information indicating the direction of the second beam 30 and arrangement information for specifying the position of the second beam 30 are included. For this reason, the second beam beam locus 34 includes a frame surface locus 34a capable of storing frame surface information, a direction locus 34b capable of storing direction information, and a placement locus 34c capable of storing arrangement information. included. Such a second information portion 28 is stored in the computer 1.

  Next, the computer 1 stores the first beam beam gene in the first information portion 27 of the chromosome information 26 (step S33). In this step S33, the division information stored in the division locus 33a and the direction information stored in the direction locus 33b are set.

  The division information of this embodiment is information for identifying the first beam arrangement information 36a (shown in FIG. 9) from the beam arrangement list 25. For this reason, the segment information stored in the segment locus 33a is randomly determined according to a random number function from a numerical range of “0.00 to 1.00” that can be taken by the segment information in the beam arrangement list 25.

  FIG. 13 is a plan view for explaining the arrangement of the first beam beams 29 defined by the leftmost first beam beam locus 33A, and FIG. 14 shows the first of the first beam beam loci 33B that is the second from the left. It is a top view explaining arrangement | positioning of the small beam 29. FIG. As shown in FIG. 13, the leftmost first beam beam locus 33A has the division information of the division locus 33a of “0.41”. This division information is within the range of the division information (0.41 or more and 0.60 or less) of the third opening beam 31c in the beam arrangement list 25. Thereby, the first beam arrangement information 36a of the third opening beam 31c is selected, and the arrangement of the third opening beam 29c is defined based on the position information “C”. In addition, since the direction of the third aperture beam 29c is uniquely determined, the direction information of the direction locus 33b is ignored.

  In the present embodiment, the first beam arrangement information 36a of the selected third beam beam 29c is deleted from the beam arrangement list 25. Then, the beam arrangement list 25 is reproduced based on the first beam arrangement information 36a of the first beam beam 29a, the second beam beam 29b, the fourth beam beam 29d, and the first beam bundle beam 29e. Built. Accordingly, as shown in FIG. 14, the beam arrangement list 25 includes a first opening beam 29a, a second opening beam 29b, a fourth opening beam 29d, and a first shed bundle beam 29e. It consists of first beam arrangement information 36a.

  The second trabecular locus 33B from the left has the segment information of the segment locus 33a of “0.28”. This division information is within the range of the division information (0.26 or more and 0.50 or less) of the second opening beam 31b in the beam arrangement list 25. Thereby, the first beam arrangement information 36a of the second aperture beam 29b is selected, and the arrangement of the second beam beams 29b is defined based on the position information “B”. In addition, since the direction of the second opening beam 29b is uniquely determined, the direction information of the direction locus 33b is ignored. Further, the first beam arrangement information 36a of the selected second beam beam 29b is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed.

  Thus, since the 1st information part 27 can acquire the positional information on the small beams 29a-29e from the reconstructed small beam arrangement list 25 based on the classification information of the classification gene locus 33a, There is no need to separately hold information for specifying the beams 29a to 29e. For this reason, the 1st information part 27 can prevent that each 1st small beam 29a-29e is arrange | positioned overlapping, simplifying the structure of the chromosome information 26. FIG.

  In addition, since the sorting information of the sorting loci 33a is randomly determined according to a random number function, it is possible to set various variations of arrangement in which the arrangement order of the respective small beams 29a to 29e is different. It should be noted that the beam arrangement list 25 is reconstructed every time the arrangement of the beam beams 29a to 29e is defined. The initial beam arrangement list 25 (shown in FIG. 9) is always held in the computer 1. Yes. Therefore, even if the chromosome information 26 is redefined, the computer 1 can appropriately recognize the arrangement of each of the small beams 29a to 29e using the initial small beam arrangement list 25.

The direction information indicates the direction of the first small beam 29 as described above. In the direction information of the present embodiment, the longitudinal direction of the first beam 29 is defined. In addition, the direction information is defined by at least one digit character or numerical value, in this embodiment, at least one digit numerical value. Each numerical value that can be taken by the direction information of the present embodiment is 1 or 2, and details are as follows.
1: Parallel to X-axis direction 2: Parallel to Y-axis direction

  The direction information is determined randomly according to a random number function. Such direction information determines the direction of the first shed bundle beam 29e. On the other hand, the orientations of the first aperture beam 31a to the fourth aperture beam 29d are uniquely determined based on the segment information of the segment locus 33a (position information stored in the beam arrangement list 25). For this reason, the direction information of the first aperture beam 31a to the fourth aperture beam 29d is substantially meaningless. As described above, in the present embodiment, by carrying out the process of determining the direction information of the first opening small beam 29a to the fourth opening small beam 29d as well as the direction information of the first shed bundle beam 31e, The processing procedure can be simplified.

  Next, the computer 1 stores the second trabecular gene in the second information portion 28 of the chromosome information 26 (step S34). In this step S34, as shown in FIG. 11, the frame surface information stored in the frame surface gene locus 34a, the direction information stored in the direction gene locus 34b, and the arrangement information stored in the arrangement gene locus 34c are stored. Is set.

For the frame surface information, the horizontal frame surface 9 or the frame frame 13 (FIG. 4 (FIG. a) and (b) are specified. The frame surface information of the present embodiment includes the frame surface 13 (the eighth frame surface (not shown) in this embodiment) formed after the last beam 8 (the seventh beam 8) is arranged. Defined except. The frame surface information of this embodiment is as follows, for example.
0: No arrangement of second beam 1: Horizontal frame or first frame surface 2: Second frame surface 3: Third frame surface 4: Fourth frame surface 5: Fifth frame surface 6: 6th small frame 7: 7th small frame

  FIG. 15 is a plan view showing the horizontal frame 9 before the beam 8 is arranged. For example, when the frame surface information of the frame surface gene locus 34 a is “1”, the second beam 30 is arranged on the horizontal frame surface 9. On the other hand, when the frame surface information is “0”, the second beam 30 is not arranged on the horizontal frame surface 9.

  16 (a) and 16 (b) are plan views of the horizontal frame 9 on which one small beam 8 is arranged. A first small frame surface 13a and a second small frame surface 13b are formed on the first horizontal frame surface 9a. As shown in FIG. 16A, when the frame surface information of the frame surface locus 34a is “1”, the second beam 30 is arranged on the first frame surface 13a. As shown in FIG. 16B, when the frame surface information is “2”, the second beam 30 is arranged on the second frame surface 13b.

  In this embodiment, when the frame surface information is “3” or more where the corresponding frame surface 13 does not exist, for example, among the frame surfaces 13 divided into the horizontal frame surface 9, The second beam 30 is arranged on the frame surface 13 (in this embodiment, the second frame surface 13b). Note that the present invention is not limited to such a mode. For example, based on the numerical value of the frame surface information, the first frame surface 13a to the last frame surface 13 (in this embodiment, the second frame surface 13b). ), The small frame 13 on which the second beam 30 is arranged may be determined. For example, when the frame surface information is “3”, the second small frame surface 13a and the second second frame surface 13b are passed through the second first frame surface 13a. A beam 30 is arranged.

  Thus, the frame surface information can specify the horizontal frame surface 9 or the small frame surface 13 on which the second beam 30 is arranged. The frame surface information of the present embodiment is randomly determined from the frame surface information 0 to 7 according to the random number function.

The direction information indicates the direction of the second small beam 30. In the direction information of the present embodiment, the direction of the longitudinal direction of the second beam 30 is defined similarly to the direction information of the first beam beam. Each numerical value that can be taken by the direction information of the present embodiment is 1 or 2, and details are as follows. Note that the direction information is randomly determined according to a random number function.
1: Parallel to X-axis direction 2: Parallel to Y-axis direction

  The arrangement information specifies the position of the second beam 30. As shown in FIG. 15, the position of the second beam 30 in the present embodiment is the horizontal frame 9 or the small frame 13 (see FIGS. 16A and 16B) of the pair of ends 8t and 8t. Are set based on the end portion 18 (hereinafter, simply referred to as “reference end portion”) 18 closest to the reference points 15a and 15b.

  The arrangement information includes the length L2 of the side 35 with which the reference end 18 abuts on the horizontal frame 9 or the small frame 13 (shown in FIGS. 16A and 16B) on which the second beam 30 is arranged. And the ratio (L1 / L2) of the distance L1 between the reference points 15a, 15b and the reference end 18 of the second small beam 30. Therefore, the numerical value that the arrangement information can take is 0.00 to 1.00. The arrangement information is determined randomly according to a random number function.

  FIG. 15 illustrates a case where the frame information of the frame locus 34a is “1”, the direction information of the direction locus 34b is “2”, and the arrangement information of the arrangement locus 34c is “0.35”. Is done. In this case, the position of the reference end 18 of the second beam 30 is set such that the reference of the horizontal frame 9 is relative to the length L2 of the side 35 (X-axis direction) of the horizontal frame 9 with which the reference end 18 abuts. A distance L1 (X-axis direction) from the point 15a is defined by a node 17 near 0.35.

  In FIG. 16B, for example, the frame surface information of the frame surface gene locus 34a is “2”, the direction information of the direction gene locus 34b is “1”, and the arrangement information of the arrangement gene locus 34c is “0.65”. "Is exemplified. In this case, the position of the reference end portion 18 of the second small beam 30 is set such that the length of the second small structure 30 with respect to the length L2 of the side 35 (Y axis direction) of the second small structure surface 13b with which the reference end portion 18 abuts. A distance L1 (Y-axis direction) from the reference point 15b which is the lower left vertex of the surface 13b is defined by a node 17 in the vicinity of 0.65.

  Thus, the arrangement information of this embodiment can define the fixed position of the reference end portion 18 of the second beam 30. Therefore, the arrangement of the second beam 30 is defined by frame information, direction information, and arrangement information.

  In addition, when the frame surface information of the frame surface gene locus 34a is “0”, the second beam 30 is not arranged. Therefore, the arrangement information of the arrangement gene locus 34c includes, for example, a symbol ( For example, “*” or the like may be input.

  It should be noted that the arrangement information of the present embodiment is desirably generated repeatedly until a value is set in which the second beam 30 is not arranged across the inside of the opening 11 (shown in FIG. 8B). . Thereby, it can prevent that the 2nd small beam 30 crossing the inside of the opening part 11 is set.

  Through such step S33 and step S34, the chromosome information 26 shown in FIG. 11 is generated. Next, the arrangement of the small beams 8 defined by the chromosome information 26 will be described on behalf of the first horizontal frame 9a.

  In the chromosome information 26 of the present embodiment, the definition is made in the first information portion 27 prior to the placement of the second beam 30 defined in the second information portion 28 in each horizontal frame 9a to 9h (shown in FIG. 7). It is defined from the arrangement of the first small beams 29.

  In the first information portion 27, as described above, in each of the horizontal frames 9a to 9h (shown in FIG. 7), the first first small first lobe is arranged in order from the first trabecular locus 33 arranged on the leftmost side. The arrangement of the first first beams 29 of the beams 29 to 5 is defined. In the leftmost first beam beam locus 33A, the division information of the division locus 33a is “0.41”, and the direction information of the direction locus 33b is “2”.

  FIG. 17 is a plan view for explaining the arrangement of the first first small beams 29. The division information “0.41” of the first beam loci 33A arranged on the leftmost side is the division information (0.41 or more and 0.60 or less) of the third opening beam 31c in the beam arrangement list 25. It is in the range. Thereby, the first beam arrangement information 36a of the third opening beam 29c is selected, and the third opening beam 29c is defined as the first first beam 29. In addition, since the direction of the third aperture beam 29c is uniquely determined, the direction information of the direction locus 33b is ignored.

  Further, both ends 29t and 29t of the third opening small beam 29c are in contact with the large beams 7 and 7 arranged on the extension line in the Y-axis direction of the third opening planned position 22c from the third opening planned position 22c to Y. It is arranged so as to protrude in the axial direction. Thereby, arrangement | positioning of the 3rd opening small beam 29c is defined. Further, the first beam arrangement information 36a of the selected third beam beam 29c is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed. The reconstructed beam arrangement list 25 is shown in FIG.

  Next, as shown in FIG. 11, the second first beam 29 defined by the second first beam locus 33B from the left is arranged. The second trabecular locus 33B from the left has the division information of the division locus 33a of “0.28” and the direction information of the direction locus 33b of “1”.

  FIG. 18 is a plan view for explaining the arrangement of the second first small beams 29. The segment information “0.28” of the first first beam loci 33B from the left is the segment information (0.26 or more and 0.50 or less) of the second apertured beam 29b in the beam configuration list 25. Is in range. As a result, the first beam arrangement information 36a of the second aperture beam 29b is selected, and the second beam beam 29b is defined as the second first beam 29. In addition, since the direction of the second opening beam 29b is uniquely determined, the direction information of the direction locus 33b is ignored.

  Further, both ends 29t, 29t of the second opening small beam 29b are in contact with the third opening small beam 29c and the large beam 7 arranged on the extension line in the X-axis direction of the second opening planned position 22b. It is arranged so as to protrude from the planned position 22b in the X-axis direction. Thereby, arrangement | positioning of the 2nd opening small beam 29b is defined. Further, the first beam arrangement information 36a of the selected second beam beam 29b is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed. The reconstructed beam arrangement list 25 is shown in FIG.

  Next, as shown in FIG. 11, a third first beam 29 defined by the third first beam locus 33C from the left is arranged. The third first beam locus 33C from the left has the division information of the division locus 33a of “0.55” and the direction information of the direction locus 33b of “2”.

  FIG. 19 is a plan view for explaining the arrangement of the third first beam 29. The segment information “0.55” of the third first beam loci 33C from the left is the segment information (0.34 or more and 0.66 or less) of the fourth aperture beam 31d in the beam configuration list 25. Is in range. As a result, the first beam arrangement information 36 a of the fourth aperture beam 29 d is selected, and the fourth beam beam 29 d is defined as the third first beam 29. In addition, since the direction of the fourth opening beam 29d is uniquely determined, the direction information of the direction locus 33b is ignored.

  Further, both ends 29t, 29t of the fourth opening small beam 29d are in contact with the second opening small beam 29b and the large beam 7 arranged on the extension line in the Y-axis direction of the fourth opening planned position 22d. It is arranged to protrude from the planned position 22d in the Y-axis direction. Thereby, the arrangement of the fourth aperture beam 29d is defined. Further, the first beam arrangement information 36a of the selected fourth beam beam 29d is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed. The reconstructed beam arrangement list 25 is shown in FIG.

Next, as shown in FIG. 11, the fourth first beam 29 defined by the fourth first beam locus 33D from the left is arranged. In the first first beam locus 33D from the left, the division information of the division locus 33a is “0.30”, and the direction information of the direction locus 33b is “1”.
Is.

  FIG. 20 is a plan view for explaining the arrangement of the fourth first small beams 29. The segment information “0.30” of the fourth first beam loci 33D from the left is the segment information (0.00 or more and 0.50 or less) of the first opening beam 31a in the beam arrangement list 25. Is in range. As a result, the first beam arrangement information 36 a of the first beam beam 29 a is selected, and the first beam beam 29 a is defined as the fourth first beam 29. In addition, since the direction of the first aperture beam 29a is uniquely determined, the direction information of the direction locus 33b is ignored.

  Further, both ends of the first opening beam 29a abut on the third opening beam 29c and the fourth opening beam 29d disposed at both ends in the X-axis direction of the first opening planned position 22a. Thereby, arrangement | positioning of the 1st opening small beam 29a is defined. Further, the first beam arrangement information 36a of the selected first opening beam 29a is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed. The reconstructed beam arrangement list 25 is shown in FIG.

  Next, as shown in FIG. 11, the fifth first beam 29 defined by the fifth first beam locus 33E from the left is arranged. In the first first beam locus 33E from the left, the division information of the division locus 33a is “0.75”, and the direction information of the direction locus 33b is “1”.

  FIG. 21 is a plan view for explaining the arrangement of the fifth first small beams 29. The section information “0.75” of the fifth first beam loci 33E from the left is the section information (0.00 or more and 1.00 or less) of the first shed bundle beam 31e in the beam arrangement list 25. It is in the range. As a result, the first beam arrangement information 36a of the first beam bundle 29e is selected, and the first beam bundle 29e is defined as the fifth first beam 29. Further, since the direction information of the direction locus 33b is “1”, the longitudinal direction of the first shed bundle beam 29e is arranged parallel to the X axis.

  Further, both ends 29t, 29t of the first shed bundle beam 29e are in contact with the third open beam 29c and the large beam 7 arranged on the extension line in the X-axis direction of the first shed bundle planned position 23a. Thereby, the arrangement of the first shed bundle beams 31e is defined. The first beam arrangement information 36a of the selected first sheave bundle beam 29e is deleted from the beam arrangement list 25. As a result, the number of the first beam arrangement information 36a defining the first beam 29 becomes 0 in the beam arrangement list 25. Accordingly, in the first horizontal frame 9a, the arrangement of all the first small beams 29 is defined.

  Next, as shown in FIG. 11, the arrangement of the second beam 30 defined by the second information portion 28 is defined. In the second information portion 28, as described above, in each of the horizontal frames 9a to 9h (shown in FIG. 7), the first second small beam is sequentially arranged from the second small beam gene locus 34A arranged on the leftmost side. The arrangement of the beam 30 and the second second small beam 30 is defined.

  FIG. 22 is a plan view for explaining the arrangement of the first second beam 30. In the second beam structure 33B arranged at the leftmost position, the frame surface information of the frame surface gene locus 34a is “6” and the direction information of the direction gene locus 34b is “1”. For this reason, the first second small beam 30 is arranged with its longitudinal direction parallel to the X axis on the sixth small frame 13f.

  Further, the arrangement information of the arrangement locus 34c is “0.6”. For this reason, the position of the reference end portion 18 of the first second beam 30 is set to the length L2 of the side 35 (Y-axis direction) of the sixth small frame 13f with which the reference end portion 18 abuts. A distance L1 (in the Y-axis direction) from the reference point 15b of the six small frame 13f is defined by a node 17 arranged at a position of 0.6. Further, the other end 30t of the first second small beam 30 abuts on a third opening small beam 29c arranged on an extension line of the reference end portion 18 in the X-axis direction. Thereby, the arrangement of the first second beam 30 is defined.

  Next, as shown in FIG. 11, the second second beam 30 defined by the second second beam locus 34B from the left is arranged. FIG. 23 is a plan view for explaining the arrangement of the second second beam 30. The second trabecular locus 34B from the left has “2” in the frame surface information of the frame surface locus 34a and “1” in the direction information of the direction locus 34b. For this reason, the second second beam 30 is arranged with the longitudinal direction thereof parallel to the X axis on the second small frame surface 13b.

  Further, the arrangement information of the arrangement gene locus 34c is “0.7”. For this reason, the position of the reference end portion 18 of the second second beam 30 is set to the length L2 of the side 35 (Y-axis direction) of the second small frame 13b with which the reference end portion 18 abuts. The distance L1 (in the Y-axis direction) from the reference point 15b of the two small frame 13b is defined by the node 17 arranged at a position near 0.7. The other end 30t of the second second small beam 30 abuts on a fourth opening small beam 29d arranged on an extension line of the reference end portion 18 in the X-axis direction. Thereby, the arrangement of the second second beam 30 is defined.

  As described above, the first information portion 27 and the second information portion 28 of the first horizontal frame surface 9a shown in FIG. 11 are arranged with the small beams 8 on the first horizontal frame surface 9a (shown in FIG. 8B). Can be defined. Such a decoding process is performed in the calculation step S41 of the next optimization calculation step S4.

  In step S33 and step S34, the first information portion 27 and the second information portion 28 are set on each of the horizontal frame surfaces 9b to 9h in the same manner as the first horizontal frame surface 9a. Thereby, each chromosome information 26 can specify one frame 2 (design sample) in which the small beams 8 are respectively arranged on each horizontal frame 9a to 9h. In the group generation step S3, a plurality of types of such chromosome information 26 are formed. Thereby, a group 31 composed of a plurality of types of chromosome information 26 is generated.

  Further, in step S33 and step S34 of this embodiment, in the first information portion 27 and the second information portion 28, the division information, the frame surface information, the direction information, and the arrangement information are randomly set by the computer 1. . For this reason, various variations of chromosome information 26 can be easily set in the group generation step S3. A group 31 composed of such chromosome information 26 is stored in the computer 1 as numerical data.

  In the present embodiment, the case where the first small beam 29 or the second small beam 30 does not overlap is illustrated, but for example, when the first small beam 29 or the second small beam 30 overlaps, they are arranged later. The arrangement of the first beam 29 or the second beam 30 is ignored. Thereby, the arrangement | positioning with which the 1st small beam 29 or the 2nd small beam 30 overlaps is excluded.

  Further, in the group generation step S3 of the present embodiment, the chromosome information 26 is generated based on the first beam arrangement information 36a selected from the beam arrangement list 25 so that the first beam 29 is always included. . Thereby, in the design method of this invention, the chromosome information 26 which defined the undesirable arrangement | positioning pattern in which the small beam 8 is not arrange | positioned in the arrangement plan position 21 can be prevented. Such an undesirable arrangement pattern is excluded from the optimum solution for the arrangement of the beam 8. Therefore, in the design method of the present invention, it is possible to prevent a decrease in calculation efficiency in the next optimization calculation step S4, and an optimal solution for the arrangement of the small beams 8 can be obtained in a short time.

  Next, the computer 1 uses the group 31 to calculate the optimal solution for the arrangement of the small beams 8 (shown in FIG. 8B) based on the genetic algorithm (GA) (optimization calculation step S4). .

  A genetic algorithm is a learning algorithm that mimics the process by which a living organism adapts to the environment and evolves. In this genetic algorithm, genetic operations such as crossover or mutation are repeated for a plurality of chromosome information expressed by genes. Thereby, in a genetic algorithm, chromosome information can be evolved in time series from a small number of samples, and an optimal solution can be obtained in a short time. FIG. 24 is a flowchart illustrating an example of the processing procedure of the optimization calculation step S4 of the present embodiment.

  In the optimization calculation step S4 of the present embodiment, first, the first target variable and the second target variable of the frame 2 are calculated based on each chromosome information 26 of the group 31 (calculation step S41).

  FIG. 25 is a diagram showing calculation results of the first target variable and the second target variable. The first target variable of the present embodiment is an approximate cost of the frame 2. For example, this cost may be calculated by multiplying the weight of the beam 8 (shown in FIG. 4) set in the chromosome information 26 by the unit price per unit weight of the beam 8 or for each beam 8. It is calculated by a method of adding up based on the price of the parts made in the database.

  The first target variable is better as the numerical value is smaller. Furthermore, the allowable range of the first target variable is, for example, 1.10 times or less the target cost. The target cost is appropriately set based on, for example, the budget for the building B. Such a first target variable is calculated for each chromosome information 26 and stored in the computer 1.

  The second target variable is the fitness to the design constraint condition of the frame 2 defined by the chromosome information. This fitness is calculated based on, for example, the number of violations of design constraints such as the strength of the frame 2 and the degree of violation. Note that the second target variable and the first target variable are mutually independent variables.

  The strength of the frame is obtained, for example, by the retained horizontal strength calculation (so-called route 3 calculation) specified by the Building Standard Law. This 2nd target variable is so good that a numerical value is high, and if it is 1.0 or more, the conditions demanded for frame 2 will be satisfied. Such a second target variable is calculated for each chromosome information 26 (shown in FIG. 11) and stored in the computer 1. When the fitness is less than 1.0, a numerical value may be added as a penalty to the first target variable that is the cost of the frame 2.

  Next, the computer 1 determines whether or not there is at least one chromosome information 26 (hereinafter simply referred to as “optimum solution”) that satisfies both the first target variable and the second target variable (determination). Step S42). In the determination step S42 of the present embodiment, when it is determined that an optimal solution exists among all the chromosome information 26 constituting the group 31, the next manufacturing step S5 is executed.

  On the other hand, when it is determined that there is no optimal solution, the computer 1 performs genetic operations such as crossover and mutation on at least a part of the chromosome information 26 to reconstruct the chromosome information 26 (gene operation). Step S43). Based on the reconstructed chromosome information 26, the calculation step S41 and the determination step S42 are executed again. Thereby, in the optimization calculation process S4, an optimal solution can be obtained reliably.

  In the determination step S42 of the present embodiment, it is determined only whether or not an optimal solution exists, but the present invention is not limited to this. For example, in the determination step S42, in addition to the above condition, only when the chromosome information 26 with the lowest cost of the frame 2 represented by the first target variable is not updated a plurality of times (for example, 5 to 15 times), The next manufacturing process S5 may be executed.

  FIG. 26 is a flowchart showing an example of the processing procedure of the gene manipulation step S43 of the present embodiment. In the gene manipulation step S43 of the present embodiment, first, as shown in FIG. 25, the computer 1 has a low cost of the frame 2 that represents the plurality of chromosome information 26 belonging to the group 31 by the first target variable. Ranking in order (step S431).

  Next, the computer 1 classifies each chromosome information 26 into an elite group 41 and a non-elite group 42 (step S432). The elite group 41 includes chromosome information 26 having a relatively high degree of optimization among all the chromosome information 26 belonging to the group 31. On the other hand, the non-elite group 42 includes chromosome information 26 having a lower degree of optimization than the chromosome information 26 of the elite group 41. The ratio of the elite group 41 can be set as appropriate. For example, it may be determined to be about 5 to 20% of all chromosome information 26 constituting the group 31 (shown in FIG. 10).

  Next, the computer 1 generates a new population 31 of chromosome information 26 used in the next calculation step S41 (next generation population generation step S433). FIG. 27 is a flowchart illustrating an example of a processing procedure of the next generation group generation step S433 according to the present embodiment.

  In the next generation population generation step S433, first, the computer 1 includes the chromosome information 26 of the elite group 41 in the new population 31 without crossover or mutation (step S71). Thereby, in calculation process S41, since the chromosome information 26 of the elite group 41 is included, it can prevent moving away from an optimal solution. The chromosome information 26 of the elite group 41 is stored in the computer 1 as the chromosome information 26 constituting the new group 31.

  Next, the computer 1 performs crossover on a part of the chromosome information 26 constituting the group 31 shown in FIG. 10 (crossover step S72). FIG. 28A is a conceptual diagram showing chromosome information before crossover, and FIG. 28B is a conceptual diagram showing chromosome information after crossover.

  In the crossover step S72 of the present embodiment, for example, a first trabecular locus 33 or a second trabecular locus 34 (not shown) sandwiched between two crossing points 43 and 43 between a pair of chromosome information 26a and 26b. The first beam beam gene or the second beam beam gene stored in () is replaced. Such crossover can replace the first beam beam gene or the second beam beam gene defining the same beam 8 (for example, the second beam 30) between the pair of chromosome information 26a and 26b. . Accordingly, the crossover can easily reconstruct the chromosome information 26 without setting the first and second beam beams again. The reconstructed chromosome information 26 is stored in the computer 1 as chromosome information 26 constituting a new group 31. Note that the crossover points 43 and 43 are desirably set at random by the computer 1.

  In the present embodiment, the case where the crossover is a two-point crossover in which the first beam beam gene or the second beam beam sandwiched between the two crossing points 43, 43 is illustrated, but is not limited thereto. is not. As crossover, for example, one-point crossover, multipoint crossover, or uniform crossover may be used, or a combination of these may be implemented.

  Next, the computer 1 performs mutation on a part of the chromosome information 26 constituting the group 31 shown in FIG. 10 (mutation step S73). In step S73 of the present embodiment, mutation is performed on the first beam beam gene at the first beam beam locus 33 or the second beam beam gene at the second beam beam locus 34.

  FIG. 29A is a conceptual diagram illustrating mutation of the first beam beam gene. In the mutation of the first beam beam according to the present embodiment, first, in each chromosome information 26, the section locus 33a or the direction locus 33b of the first beam beam locus 33 is randomly selected. Next, the section information stored in the selected section locus 33a or the direction information stored in the direction locus 33b is replaced with a numerical value selected at random from all the numerical values that can be taken. Even if the section information of the section locus 33a is replaced, the first beam arrangement information is selected from the beam arrangement list 25 (shown in FIG. 9) as described above. Since it is defined based on 36a, an undesirable arrangement pattern in which the first beam 29 is not arranged is not generated.

  FIG. 29B is a conceptual diagram illustrating mutation of the second beam beam gene. In the mutation of the second beam beam according to the present embodiment, first, similarly to the mutation of the first beam beam gene, first, the frame plane locus 34a, the direction locus 34b, or the arrangement of the second beam beam locus 34 are arranged. The locus 34c is selected at random. Next, the frame information, direction information, or arrangement information stored in the selected frame plane locus 34a, direction locus 34b, or arrangement locus 34c is randomly selected from all the numerical values that can be taken. Replaced with the selected number.

  Unlike the crossover, such a mutation is not limited to the segment information, the frame plane information, the direction information, or the arrangement information defined in each chromosome information 26 constituting the group 31, and a new segment Chromosome information 26 can be reconstructed using information, frame information, direction information, or arrangement information. Therefore, the mutation can prevent falling into a local optimal solution. The reconstructed chromosome information 26 is stored in the computer 1 as chromosome information 26 constituting a new group 31.

  As described above, in the optimization calculation step S4 of the present embodiment, as shown in FIG. 25, the chromosome information 26 of the elite group 41 having a high degree of optimization of the first target variable and the second target variable is left, and the chromosome Information 26 can be reconstructed and a new evolution can be attempted. Thereby, in the design method of the present invention, the arrangement of the small beams 8 (shown in FIG. 8B) can be evolved with a small number of samples. Therefore, the design method of the present invention can find the optimum solution in a short time.

  The ratio of the chromosome information 26 to be mutated can be set as appropriate, but may be determined to be, for example, about 10 to 40% of all the chromosome information 26 constituting the group 31. If the percentage of chromosome information 26 to be mutated is less than 10%, the genetic information may not be sufficiently evolved. On the other hand, if the proportion of chromosome information 26 to be mutated exceeds 40%, gene information that violates the design constraint condition is greatly increased, and an optimal solution may not be obtained in a short time.

  In addition, after the chromosome information 26 that satisfies the cost of the frame 2 represented by the first target variable and falls within the allowable range and that satisfies the fitness represented by the second target variable appears, the vicinity of the optimal solution is generally determined. It can be determined that the search has been completed. For this reason, in the next generation population generation step S433, it is desirable to prioritize evolution by crossing relatively good chromosome information 26. Thereby, in optimization calculation process S4, an optimal solution can be calculated | required in a short time. In this case, the mutation rate may be set to about 5 to 10% of all chromosome information 26 constituting the group 31.

  The number of chromosome information 26 belonging to the group 31 is preferably 15 to 50. If the number of chromosome information 26 is less than 15, genetic information may not be sufficiently evolved. On the other hand, if the number of chromosome information 26 exceeds 50, a lot of calculation time may be required.

Further, it is desirable that the number of chromosome information 26 belonging to the group 31 is determined by the number of floors and the total floor area of the building B, for example. For example, in the case of a two-story building B as in this embodiment, it is desirable that the chromosome information 26 is set according to the number set for each total floor area described below. In the case of a three-story building (not shown), it is desirable to set chromosome information 26 for the number obtained by adding 5 to the following number. Further, in the case of a one-story building (not shown), it is desirable to set chromosome information 26 for the number obtained by subtracting 5 from the following number.
100m less than ^2: 20 100~120m ^2: 25 pieces 120~140m ^2: 30 pieces 140~160m ^2: 35 pieces 160~180m ^2: 40 pieces 180~200m ^2: 45 pieces 200 meters ² or more: 50

  Next, in the final generation group 31, the frame body 2 and the building B shown in FIG. 2 are manufactured based on the chromosome information 26 having the highest degree of optimization (manufacturing step S5). Thereby, in the design method of this embodiment, the frame 2 and the building B having the highest fitness for passing the small beam 8 to the planned placement position 21 can be easily and easily suppressed while keeping the cost of the frame 2 within a predetermined range. It can be manufactured reliably.

  The chromosome information 26 having the highest degree of optimization is, for example, 1.10 times the first target variable having the lowest first target variable among all the chromosome information 26 having the second target variable of 1 or more. The chromosome information 26 which is the following and has the highest fitness of the frame 2 used for the calculation of the second target variable can be determined.

  The first beam beam gene of the present embodiment is exemplified by segment information and direction information, but is not limited thereto. For example, the first beam beam gene may include order information indicating the order in which the first beam beams 29 (shown in FIG. 8B) are arranged on the horizontal frame 9. Further, the second beam beam gene may also include order information indicating the order in which the second beam 30 (shown in FIG. 8B) is arranged on the horizontal frame 9. Thereby, the order loci 33c and 34d capable of storing the order information are set in the first trabecular locus 33 and the second trabecular locus 34. FIG. 30 is a conceptual diagram showing chromosome information 26 of another embodiment.

  The order information stored in the respective order loci 33c and 34d is defined by the first beam 29 and the second information part 28 defined by the first information part 27 in each horizontal frame 9a to 9h. The order including the second beam 30 (shown in FIG. 8B) is defined. In this embodiment, since the upper limit value of the number of the small beams 8 defined by the design constraint condition is “7”, the order information is defined by an integer of 1 to 7. In addition, the 1st small beam 29 or the 2nd small beam 30 is arrange | positioned from the order with the small numerical value of order information.

  In the step S33 of storing the first beam beam in the group generation step S3, it is preferable that the order (order information) determined at random according to the random number function is stored in the order locus 33c of the first information portion 27. Further, in step S34 for storing the second beam beam, it is desirable that the first beam beam 29 used in the first information portion 27 is assigned in an order other than the order. Thereby, it can prevent that the order of the 1st small beam 29 and the order of the 2nd small beam 30 overlap. Note that the order information of the second beam 30 is desirably determined randomly according to a random number function when there are a plurality of the second beam 30.

  Since such order information can be arranged by changing the order in which the first beam 29 and the second beam 30 are arranged, chromosome information 26 of more variations can be set.

  In the mutation step S73 of the next generation group generation step S433, for example, mutation is performed based on a technique by Grefenstette et al. That is typically applied in the Traveling Salesman Problem (TSP) or the like. Is desirable. Thereby, the order information can be set at random between the first trabecular locus 33 and the second trabecular locus 34 while preventing the inconsistent order information such as duplication and omission from being stored. it can. The specific procedure of the technique by Grefenstette et al. Is described in, for example, literature (System Control Information Society, “Genetic Algorithm and Optimization”, 4th edition, Asakura Shoten Co., Ltd., 2004, P37-P39). Can be implemented on the basis of

  Further, although the beam arrangement list 25 of the present embodiment is exemplified to include only the first beam arrangement information 36a for arranging the first beam 29, it is not limited to this. For example, the small beam arrangement list 25 may include second beam arrangement information 36b for arranging the second beam 30 in addition to the first beam arrangement information 36a. In this embodiment, a plan view of the first horizontal frame surface 9a without the small beam 8 shown in FIG. 31 (a) and the first beam in which the small beam 8 shown in FIG. 31 (b) is arranged. This will be described based on a plan view of the horizontal frame 9a.

  Unlike the previous embodiment, the first horizontal frame 9a of this embodiment newly includes a second shed bundle planned position 23b as the shed bundle planned position 23. As a result, on the first horizontal frame 9a of this embodiment, the first small beam 29 includes the first opening small beam 29a, the second opening small beam 29b, the third opening small beam 29c, and the fourth opening small beam 29d. , A first shed bundle beam 29e and a second shed bundle beam 29f passing through the second shed bundle planned position 23b are included. The first horizontal frame 9a includes two second small beams 30. In addition, as a design constraint condition of this embodiment, “8” is set as the upper limit value of the number of small beams 8. FIG. 32 is a conceptual diagram of the beam arrangement list 25 on the first horizontal frame 9a of this embodiment.

  The small beam arrangement list 25 includes, for example, the first opening small beam 29a, the second opening small beam 29b, the third opening small beam 29c, and the fourth opening small size shown in FIG. 31B on the first horizontal frame 9a. Six first beam arrangement information 36a defining the beam 29d, the first beam bundle beam 29e, and the second beam bundle beam 29f (not shown), and the two second beam beams 30 and 30 are defined. Two pieces of second beam arrangement information 36b are included. The first beam arrangement information 36a and the second beam arrangement information 36b include classification information and position information, like the first beam arrangement information 36a of the previous embodiment.

In the first horizontal frame 9a, the segment information is divided into a numerical range of 0.000 to 1.000 equally for each of the first beams 29a to 29f and the second beams 30 and 30 (equivalent to 8). ). The division information of this embodiment is as follows.
Classification information of the first aperture beam 29a: 0.000 or more and 0.125 or less Classification information of the second aperture beam 29b: 0.126 or more and 0.250 or less Classification information of the third aperture beam 29c: 0. 251 or more and 0.375 or less Classification information of the fourth opening beam 29d: 0.376 or more and 0.500 or less Classification information of the first shed bundle beam 29e: 0.501 or more and 0.625 or less The second shed bundle Section information of the small beam 29f: 0.626 or more and 0.750 or less Section information of the second beam: 0.751 or more and 0.875 or less Section information of the second beam: 0.876 or more and 1.000 or less

The position information is defined based on the planned placement position 21 (shown in FIG. 31A) of each first beam 29. On the first horizontal frame surface 9a, as the positional information of the first opening small beam 29a to the fourth opening small beam 29d, the positions of both ends of the first opening planned position 22a to the fourth opening planned position 22d are the same as in the previous embodiment. The coordinate values of the nodes 17 and 17 (shown in FIG. 31A) are set. Further, as the position information of the first shed bundle beam 29e and the second shed bundle beam 29f, as in the previous embodiment, one node of each of the first shed bundle planned position 23a and the second shed bundle scheduled position 23b. 17 coordinate values are set. Such position information designates positions where the small beams 29a to 29f are arranged. Since the second beam 30 is defined regardless of the planned placement position 21, no position information is set. Therefore, the position information of the second beam arrangement information 36b is set with, for example, a symbol (for example, “*”) that is distinguished from the position information of the first beam arrangement information 36a. The position information of this embodiment is as follows.
A: Coordinate values of nodes at both ends of the first opening planned position B: Coordinate values of nodes at both ends of the second opening planned position C: Coordinate values of nodes at both ends of the third opening planned position D: Fourth opening position Coordinate values of nodes at both ends E: Coordinate values of nodes at the first shed bundle position F: Coordinate values of nodes at the second shed bundle position

  In this embodiment, a frame surface list including frame surface information for specifying the horizontal frame surface 9 or the frame surface 13 on which the second beam 30 is arranged is input. FIG. 33 is a conceptual diagram of the frame surface list 38 of the first horizontal frame surface 9a of this embodiment.

  The frame surface information 39 includes classification information for distinguishing the horizontal frame surface 9 or the small frame surface 13 and position information for specifying the position of the horizontal frame surface 9 or the small frame surface 13.

  As the classification information, a numerical range assigned to the horizontal frame 9 or the small frame 13 is set in each of the horizontal frames 9a to 9h (shown in FIG. 7). Furthermore, the classification information includes classification information indicating that the second beam 30 is not arranged (hereinafter, simply referred to as “no arrangement”).

A first small frame surface 13a to an eighth small frame surface 13h are formed on the first horizontal frame surface 9a shown in FIG. For this reason, the classification information is set from a numerical range obtained by dividing the numerical range of 0.000 to 1.000 into nine equal parts (the first small frame surface 13a to the eighth small frame surface 13h and no arrangement). The division information of this embodiment is as follows, for example.
Non-arrangement classification information: 0.000 or more and 0.111 or less Classification information of the first small frame (or horizontal frame): 0.112 or more and 0.222 or less Classification information of the second small frame: 0 .223 or more and 0.333 or less Classification information of the third frame: 0.334 or more and 0.444 or less Classification information of the fourth frame: 0.445 or more and 0.555 or less Section information: 0.556 or more and 0.666 or less Section information on the sixth frame: 0.667 or more and 0.777 or less Section information on the seventh frame: 0.778 or more and 0.888 or less Classification information of small frame: 0.889 or more and 1.000 or less

As the position information, for example, coordinate values indicating the horizontal frame surface 9 or the small frame surface 13 (for example, coordinate values of four nodes 17 arranged in four directions) are set. Note that the non-arranged position information is set with, for example, a symbol (for example, “*”) that is distinguished from other position information. The position information of this embodiment is as follows.
A: Coordinate value of the first small frame (or horizontal frame) B: Coordinate value of the second small frame C: Coordinate value of the third small frame D: Coordinate value of the fourth small frame E: First Coordinate values of the 5th frame: F: Coordinates of the 6th frame: G: Coordinates of the 7th frame H: Coordinates of the 8th frame

  The small frame surface 13 is not formed before the small beams 8 are arranged on the horizontal frame surface 9. For this reason, in the stage before the arrangement of the small beams 8 on the horizontal frame 9 is calculated, a frame surface list 38 (shown in FIG. 36) consisting of frame information 39 of only “no arrangement” and “horizontal frame” is displayed. Used. The frame surface list 38 is sequentially updated every time the arrangement of the small beams 8 is calculated.

  FIG. 34 is a flowchart showing an example of the processing procedure of the group generation step S3 of this embodiment. In the group generation step S3 of this embodiment, the chromosome information 26 is defined (step S32) after the small beam 8 (shown in FIG. 31B) is defined (step S31), as in the previous embodiment. . FIG. 35 is a conceptual diagram showing an example of a trabecular gene on the first horizontal frame 9 a of the chromosome information 26.

  The chromosomal information 26 of this embodiment is set with a beam beam gene that defines the arrangement of the first beam beam 29 and the arrangement of the second beam beam 30. The chromosome information 26 defines a beam beam locus 45 in which a beam beam gene can be stored. The beam beam loci 45 are assigned to the first beam beams 29 and the second beam beams 30 (shown in FIG. 31 (b)) on each of the horizontal frame surfaces 9a to 9h. In addition, the chromosome information 26 is defined by eight small beam loci 45 (45A to 45H) on each horizontal frame 9a to 9h based on the upper limit value “8” of the number of small beams 8 in the design constraint condition. Is done. In this embodiment, based on the trabecular gene stored in the trabecular locus 45, the first trabecular 29 and the second trabecular 30 are sequentially arranged from the trabecular loci 45 arranged on the leftmost side in the figure. An arrangement is defined.

  The beam beam gene of the present embodiment includes the section information for identifying the first beam arrangement information 36a and the second beam arrangement information 36b in the beam arrangement list 25 (shown in FIG. 32), the frame plane list 38 (FIG. 33), the frame surface section information for specifying the frame surface information 39, the direction information indicating the direction of the beam 8 (shown in FIG. 31B), and the position of the second beam 30 are specified. Contains placement information. Accordingly, each of the small beam loci 45 includes a section locus 45a capable of storing section information, a frame surface locus 45b capable of storing the frame surface information 39, a direction locus 45c capable of storing direction information, and a placement locus. An arrangement locus 45d capable of storing information is set. Such chromosome information 26 is stored in the computer 1.

  Next, the computer 1 stores the beam beam gene in the beam beam locus 45 of the chromosome information 26 (step S33). In this step S33, the segment information, the frame plane segment information, the direction information, and the arrangement information are stored in the segment locus 45a, the frame plane locus 45b, the direction locus 45c, and the arrangement locus 45d.

  The division information is for specifying the first beam arrangement information 36a or the second beam arrangement information 36b from the division information of the beam arrangement list 25 (shown in FIG. 32). The section information of this embodiment is randomly determined according to a random number function from a numerical range of “0.000 to 1.000” that can be taken by the section information of the beam arrangement list 25.

  The frame surface division information is for specifying each frame surface information 39 from the division information of the frame surface list 38 (shown in FIG. 33). The frame surface section information of the present embodiment is randomly determined according to a random number function from a numerical range of “0.000 to 1.000” that can be taken by the section information of the frame surface list 38.

As described above, the direction information indicates the directions of the first small beam 29 and the second small beam 30. The direction information of the present embodiment defines the longitudinal direction of the first and second small beams 29 and 30. Also, each numerical value that can be taken by the direction information of the present embodiment is 1 or 2, and details are as follows.
1: Parallel to X-axis direction 2: Parallel to Y-axis direction

  The direction information is determined randomly according to a random number function. Based on such direction information, the directions of the first shed bundle beam 29e, the second shed bundle beam 29f, and the second shed beam 30 are determined. On the other hand, the orientation of the first aperture beam 31a to the fourth aperture beam 29d is based on the segment information of the segment locus 33a (position information stored in the beam configuration list 25), as in the previous embodiment. It is uniquely determined. For this reason, the direction information of the first opening small beam 29a to the fourth opening small beam 29d is substantially meaningless.

  The arrangement information specifies the position of the second beam 30. The position of the second beam 30 of the present embodiment is set based on the reference end portion 18 as in the previous embodiment. Accordingly, the arrangement information is randomly determined from a numerical range of 0.00 to 1.00 according to a random number function, as in the previous embodiment. In addition, about the position of the 1st opening beam 29a-the 4th opening beam 29d, the 1st shed bundle beam 29e, and the 2nd shed bundle beam 29f, the division information (beam arrangement list) of the classification locus 33a 25 is uniquely determined based on the position information stored in 25). For this reason, the arrangement information of the first opening beam 29a to the fourth opening beam 29d, the first shed bundle beam 29e, and the second shed bundle beam 29f is substantially meaningless.

  Through such step S33, the chromosome information 26 shown in FIG. 35 is generated. Next, the arrangement of the small beams 8 defined by the chromosome information 26 will be described on behalf of the first horizontal frame 9a.

  In the chromosome information 26 of the present embodiment, as described above, the arrangement of the first and second beam beams 29 and 30 is defined in order from the beam beam locus 45 arranged on the leftmost side. In the leftmost lobe locus 45A, the division information of the division locus 45a is “0.41”, the frame surface division information of the frame surface locus 45b is “0.81”, and the direction information of the direction locus 45c is “ 1 ”and the arrangement information of the arrangement locus 45d is“ 0.50 ”.

  FIG. 36 is a plan view for explaining the arrangement of the first beam in this embodiment. The section information “0.41” of the beam beam locus 45A arranged on the leftmost side is the range of the section information (0.376 or more and 0.500 or less) of the fourth opening beam 31d in the beam arrangement list 25. Is in. Accordingly, the fourth opening small beam 29d is arranged as the first small beam 8. Further, both ends 29t, 29t of the fourth opening small beam 29d are in contact with the large beams 7, 7 arranged on the extension line in the Y-axis direction of the fourth opening planned position 22d from the fourth opening planned position 22d to Y. It is arranged so as to protrude in the axial direction. Thereby, the arrangement of the fourth aperture beam 29d is defined.

  In addition, since the frame surface, direction, and reference end of the fourth aperture beam 29d are uniquely determined, the frame surface section information stored in the frame surface gene locus 45b and the direction gene locus 45c are stored. Direction information and the arrangement information stored in the arrangement locus 45d are ignored.

  Further, the first beam arrangement information 36 a of the selected fourth aperture beam 29 d is deleted from the beam arrangement list 25. In addition, since the 4th opening small beam 29d is arrange | positioned in the 2nd shed bundle planned position 23b, the 2nd shed bundle shed 29f cannot be arrange | positioned on the 1st horizontal frame surface 9a. For this reason, the first beam arrangement information 36a of the second shed bundle beam 30f is also deleted from the beam arrangement list 25. Then, the beam arrangement list 25 is reconstructed.

  Further, the first horizontal frame surface 9a is divided into a first small frame surface 13a and a second small frame surface 13b (shown in FIG. 37) by the arrangement of the fourth aperture beam 29d. Therefore, the frame surface list 38 is reconstructed by adding the frame surface information 39 of the second small frame surface 13b. The reconstructed beam arrangement list 25 and frame surface list 38 are shown in FIG.

  Next, as shown in FIG. 35, the second beam 8 defined by the second beam assembly 45B from the left is arranged. The second beam structure 45B from the left has the classification information of the classification gene locus 45a of “0.85”, the frame information of the frame structure gene locus 45b of “0.61”, and the direction information of the direction gene locus 45c. Is “1”, and the arrangement information of the arrangement locus 45d is “0.35”.

  FIG. 37 is a plan view for explaining the arrangement of the second beam in this embodiment. In the second small beam locus 45B from the left, the classification information “0.85” is within the range of the classification information (0.833 or more and 1.000 or less) of the second beam 30 in the beam arrangement list 25. It is in. Thereby, the second small beam 30 is arranged as the second small beam 8. The frame surface classification information “0.61” is the first small frame surface (0.334 to 0.666) in the frame surface list 38. Thereby, the 2nd small beam 30 is arrange | positioned at the 1st small frame surface 13a.

  In addition, since the direction information is “1” in the second beam structure 45B from the left, the longitudinal direction of the second beam 30 is arranged in parallel to the X-axis direction. Furthermore, the arrangement information is “0.35”. For this reason, the position of the reference end portion 18 of the second small beam 30 is set to the first small structure with respect to the length L2 of the side 35 (Y axis direction) of the first small structure surface 13a with which the reference end portion 18 abuts. A distance L1 (Y-axis direction) from the reference point 15b of the surface 13a is defined by a node 17 arranged in the vicinity of 0.35. Further, the other end 30t of the second small beam 30 abuts on a fourth opening small beam 29d disposed on an extension line of the reference end portion 18 in the X-axis direction. Thereby, the arrangement of the second beam 30 is defined.

  Further, the second beam arrangement information 36b of the selected second beam 30 is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed. Further, the first horizontal frame 9a is newly divided into the third small frame 13c (shown in FIG. 38) by arranging the second beam 30. Therefore, the frame surface list 38 is reconstructed by adding the frame surface information 39 of the third small frame surface 13c. The reconstructed beam arrangement list 25 and frame surface list 38 are shown in FIG.

  Next, as shown in FIG. 35, a third beam 8 defined by the third beam assembly 45C from the left is arranged. In the third beam structure 45C from the left, the classification information of the classification gene locus 45a is “0.75”, the frame information of the frame surface gene locus 45b is “0.13”, and the direction information of the direction gene locus 45c. Is “2” and the arrangement information of the arrangement locus 45d is “0.87”.

  FIG. 38 is a plan view for explaining the arrangement of the third beam in this embodiment. The section information “0.75” of the third beam structure 45C from the left is the range of the section information (0.601 or more and 0.800 or less) of the first shed bundle beam 31e in the beam arrangement list 25. Is within. As a result, the first shed bundle beam 29e is arranged as the third beam 8. Further, since the direction information is “2”, the longitudinal direction of the first shed bundle beam 29e is arranged in parallel to the Y-axis direction. In addition, the second ends 29t and 29t of the first shed bundle beam 29e are in contact with the second beam 30 and the second beam 30 arranged on the extension line in the Y-axis direction of the second shed bundle planned position 23b. It is arranged so as to protrude in the Y-axis direction from the expected shed bundle position 23b. Thereby, the arrangement of the first shed bundle beams 31e is defined.

  In addition, since the frame surface to be arranged and the reference end are uniquely determined in the first shed bundle beam 29e, the frame surface division information of the frame surface locus 45b and the arrangement information of the placement locus 45d are It will be ignored. Further, the first beam arrangement information 36a of the selected first shed bundle beam 31e is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed. Further, the first horizontal frame 9a is newly divided into the fourth small frame 13d (shown in FIG. 39) by arranging the first shed bundle beams 29e. Therefore, the frame surface list 38 is reconstructed by adding the frame surface information 39 of the fourth small frame surface 13d. The reconstructed beam arrangement list 25 and frame surface list 38 are shown in FIG.

  Next, as shown in FIG. 35, the fourth beam 8 defined by the fourth beam assembly 45D from the left is arranged. In the fourth beam structure 45D from the left, the classification information of the classification gene locus 45a is “0.55”, the frame information of the frame surface gene locus 45b is “0.98”, and the direction information of the direction gene locus 45c. Is “1”, and the arrangement information of the arrangement locus 45d is “0.41”.

  FIG. 39 is a plan view for explaining the arrangement of the fourth beam in this embodiment. The division information “0.55” of the fourth beam arrangement 45D from the left is within the range of the division information (0.501 or more and 0.750 or less) of the third opening beam 31c in the beam arrangement list 25. It is. As a result, the third opening beam 29c is arranged as the fourth beam. Further, both ends 29t and 29t of the third opening beam 29c are in contact with the large beam 7 and the second beam 30 arranged on the extension line in the Y-axis direction of the third opening planned position 22c. It is arranged so as to protrude from the planned opening position 22c in the Y-axis direction. Thereby, arrangement | positioning of the 3rd opening small beam 29c is defined.

  In addition, since the frame surface, the direction, and the reference end of the third opening beam 29c are uniquely determined, the frame surface division information of the frame surface gene locus 45b, the direction information of the direction gene locus 45c, and The arrangement information of the arrangement locus 45d is ignored. Further, the first beam arrangement information 36a of the selected third beam beam 29c is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed. Furthermore, the fifth horizontal frame 13e (shown in FIG. 40) is newly divided on the first horizontal frame 9a by the arrangement of the third aperture beam 29c. Therefore, the frame surface list 38 is reconstructed by adding the frame surface information 39 of the fifth small frame surface 13e. The reconstructed beam arrangement list 25 and frame surface list 38 are shown in FIG.

  Next, as shown in FIG. 35, the fifth beam 8 defined by the fifth beam assembly 45E from the left is arranged. In the fifth beam structure 45E from the left, the classification information of the classification gene locus 45a is “0.33”, the frame information of the frame surface gene locus 45b is “0.76”, and the direction information of the direction gene locus 45c. Is “2” and the arrangement information of the arrangement locus 45d is “0.36”.

  FIG. 40 is a plan view for explaining the arrangement of the fifth small beams in this embodiment. The section information “0.33” of the fifth beam assembly 45E from the left is within the range of the section information (0.000 or more and 0.333 or less) of the first opening beam 31a in the beam arrangement list 25. It is. Thereby, the first opening small beam 29 a is arranged as the fifth small beam 8. Also, both ends 29t and 29t of the first opening beam 29a come into contact with the third opening beam 29c and the fourth opening beam 29d arranged at both ends in the X-axis direction of the first opening planned position 22a. The first opening planned position 22a is arranged. Thereby, arrangement | positioning of the 1st opening small beam 29a is defined.

  In addition, since the frame surface, direction, and reference end portion of the first opening beam 29a are uniquely determined, the frame surface section information of the frame surface gene locus 45b, the direction information of the direction gene locus 45c, and The arrangement information of the arrangement locus 45d is ignored. Further, the first beam arrangement information 36a of the selected first opening beam 29a is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed. Further, the first horizontal frame 9a is newly divided into the sixth small frame 13f (shown in FIG. 41) by arranging the first opening beam 29a. Therefore, the frame surface list 38 is reconstructed by adding the frame surface information 39 of the sixth small frame surface 13f. The reconstructed beam arrangement list 25 and the frame surface list 38 are shown in FIG.

  Next, as shown in FIG. 35, the sixth trabecule 8 defined by the sixth trabecular locus 45F from the left is arranged. In the sixth beam structure 45F from the left, the classification information of the classification gene locus 45a is “0.61”, the frame information of the frame surface gene locus 45b is “0.48”, and the direction information of the direction gene locus 45c. Is “1”, and the arrangement information of the arrangement locus 45d is “0.75”.

  FIG. 41 is a plan view for explaining the arrangement of the sixth beam in this embodiment. In the sixth beam structure 45F from the left, the segment information “0.61” is within the range of the segment information (0.501 or more and 1.000 or less) of the second beam 30 in the beam arrangement list 25. It is in. Thereby, the second small beam 30 is arranged as the sixth small beam 8. The frame surface classification information “0.48” is the third small frame surface (0.430 to 0.572) in the frame surface list 38. Thereby, the 2nd small beam 30 is arrange | positioned at the 3rd small frame 13c.

  In addition, since the direction information is “1” in the sixth beam structure 45F from the left, the longitudinal direction of the second beam 30 is arranged in parallel to the X-axis direction. Furthermore, the arrangement information is “0.75”. For this reason, the position of the reference end portion 18 of the second small beam 30 is set such that the length of the third small frame structure 13c with which the reference end portion 18 abuts is the length L2 of the side 35 (Y-axis direction). A distance L1 (Y-axis direction) from the reference point 15b of the surface 13c is defined by a node 17 arranged at a position of 0.75. Further, the other end 30t of the second small beam 30 abuts on a third opening small beam 29c disposed on an extension line of the reference end portion 18 in the X-axis direction. Thereby, the arrangement of the second beam 30 is defined.

  Further, the second beam arrangement information 36b of the selected second beam 30 is deleted from the beam arrangement list 25, and the beam arrangement list 25 is reconstructed. Furthermore, the 7th small frame surface 13g (shown in FIG. 42) is newly divided by the 2nd small beam 30 arrange | positioning in the 1st horizontal frame surface 9a. Therefore, the frame surface list 38 is reconstructed by adding the frame surface information 39 of the seventh small frame surface 13g. The reconstructed beam arrangement list 25 and the frame surface list 38 are shown in FIG.

  Next, as shown in FIG. 35, the seventh beam 3 defined by the seventh beam assembly 45G from the left is arranged. The seventh beam trait loci 45G from the left has the segmentation information of the segmentation locus 45a “0.27”, the frame surface segmentation information of the frame surface locus 45b “0.36”, and the direction information of the direction locus 45c. Is “2”, and the arrangement information of the arrangement locus 45d is “0.79”.

  FIG. 42 is a plan view for explaining the arrangement of the seventh beam in this embodiment. The section information “0.27” of the seventh beam structure 45G from the left is within the range of the section information (0.000 or more and 1.000 or less) of the second opening beam 31b in the beam arrangement list 25. It is. Thereby, the second opening small beam 29b is arranged as the seventh small beam 8. Further, both ends 29t, 29t of the second opening small beam 29b are in contact with the third opening small beam 29c and the fourth opening small beam 29d arranged at both ends of the first opening planned position 22a. It arrange | positions at the scheduled opening position 22b. Thereby, arrangement | positioning of the 2nd opening small beam 29b is defined.

  In addition, since the frame surface, the direction, and the reference end of the second aperture beam 29b are uniquely determined, the frame surface segment information of the frame surface gene locus 45b, the direction information of the direction gene locus 45c, and The arrangement information of the arrangement locus 45d is ignored. Further, the first beam arrangement information 36a of the selected second aperture beam 29b is deleted from the beam arrangement list 25. Thereby, in the beam arrangement list 25, the number of the first beam arrangement information 36a and the second beam arrangement information 36b becomes zero. Further, the first horizontal frame 9a is newly divided into the seventh small frame 13h (shown in FIG. 31 (b)) by arranging the second opening beam 29b. Therefore, the frame surface list 38 is reconstructed by adding the frame surface information 39 of the seventh small frame surface 13g.

  As shown in FIG. 35, the eighth beam trait loci 45H from the left are the section information of the section locus 45a, the section plane section information of the section plane locus 45b, the direction information of the direction locus 45c, and the arrangement. The arrangement information of the gene locus 45d is set respectively. However, since the number of the first beam arrangement information 36a and the second beam arrangement information 36b is 0 in the beam arrangement list 25, the arrangement of the eighth beam 8 is not defined.

  As described above, the small beam gene on the first horizontal frame surface 9a shown in FIG. 35 can define the arrangement of the small beams 8 on the first horizontal frame surface 9a (shown in FIG. 31 (b)). In step S33, the small beam genes are set on the horizontal frame surfaces 9b to 9h in the same manner as the first horizontal frame surface 9a. Thereby, each chromosome information 26 can specify one frame 2 (design sample) in which the small beams 8 are respectively arranged on each horizontal frame 9a to 9h. In the group generation step S3, a plurality of types of such chromosome information 26 are formed. Thereby, a group 31 composed of a plurality of types of chromosome information 26 is generated.

  Further, in this embodiment, the arrangement of the first beam 29 and the second beam 30 is based on the beam arrangement list 25 including the first beam arrangement information 36a and the second beam arrangement information 36b. Since it is defined, for example, the order in which the first small beam 29 and the second small beam 30 are arranged can be changed without using the order information.

  Further, in this embodiment, in the chromosome information 26, the structure of the trabecular locus 45 of the first trabecular 29 and the second trabecular 30 and the trabecular gene of the first trabecular 29 and the second trabecular 30 are represented. Since they can be shared, the processing procedure can be simplified.

  Further, in the mutation step S73 of the next generation population generation step S433, in the chromosome information 26, the division information of the division locus 45a, the frame surface division information of the frame surface locus 45b, the direction information of the direction locus 45c, and the arrangement It is desirable that the arrangement information of the gene locus 45d is replaced with a numerical value selected at random from all the numerical values that can be taken.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.

3 Columns 4 Beams 7 Large beams 8 Small beams 9 Horizontal frame 21 Planned placement position 25 Small beam placement list 26 Chromosome information 31 Group

Claims (12)

A building structure including a plurality of beams that horizontally connect between the columns, and a plurality of small beams that further divide a horizontal frame surrounded by the beams. A method for designing using a computer,
The horizontal frame includes a planned arrangement position of the beam where the beam is required based on the structure of the building,
A condition input step for inputting design constraint conditions including the planned placement position to the computer;
A group generation step of generating a group consisting of a plurality of types of chromosome information, which is numerical information for specifying the arrangement of the beam, based on the design constraint condition;
The computer includes an optimization calculation step of calculating an optimal solution of the arrangement of the beam using the population based on a genetic algorithm;
In the condition input step, a beam arrangement list including first beam arrangement information for arranging the first beam passing through the arrangement planned position is input,
The group generating step generates the chromosome information so that the first beam is necessarily included based on the first beam arrangement information selected from the beam arrangement list. Design method. The chromosome information includes a first information part for defining the first beam and a second information part for defining a second beam defined regardless of the planned placement position,
2. The frame design method according to claim 1, wherein in the group generation step, the first information portion is defined based on the first beam arrangement information selected from the beam arrangement list. In the first information portion, for each first beam, a first beam gene that defines an arrangement of the first beam is set.
The frame design method according to claim 2, wherein the first beam beam gene includes classification information for specifying the first beam beam arrangement information and direction information indicating a direction of the first beam beam. Each horizontal frame is divided into a plurality of small frames by the beam.
In the second information portion, a second beam beam gene is set for each second beam.
The second beam beam gene includes frame surface information for specifying the horizontal frame surface or the beam frame surface on which the second beam is arranged, direction information indicating the direction of the second beam, and the second The frame structure design method according to claim 2, further comprising arrangement information for specifying a position of the beam. The first beam beam includes order information indicating an order in which the first beam is arranged on the horizontal frame,
The second beam beam includes order information indicating an order in which the second beam is arranged on a horizontal frame,
The frame design method according to claim 4, wherein the order of the second beam is assigned excluding the order of the first beam used in the first information portion. The beam arrangement list includes second beam arrangement information for arranging a second beam defined regardless of the planned arrangement position,
The group generation step includes the first beam and the second beam according to the first beam arrangement information and the second beam arrangement information selected from the beam arrangement list. The frame design method according to claim 1, wherein the chromosome information is generated. The chromosome information is set for each of the first beam and the second beam, a beam beam that defines the arrangement of the first beam and the second beam,
The trabecular gene includes segment information for specifying the first trabecular arrangement information or the second trabecular arrangement information, and direction information indicating the direction of the first trabecular beam or the second trabecular beam. The method for designing a frame according to claim 6. Each horizontal frame is divided into a plurality of small frames by the beam.
The frame structure design method according to claim 7, wherein the beam beam gene further includes frame surface information for specifying the horizontal frame surface or the frame frame on which the first beam or the second beam is arranged. .   The frame layout design method according to claim 1, wherein the planned layout position includes a planned layout line specified by at least two coordinate values in the horizontal frame plane. The building has an opening in the horizontal frame;
The frame design method according to claim 9, wherein the arrangement-scheduled straight line is set to at least a part of the periphery of the opening.   The frame layout design method according to any one of claims 1 to 10, wherein the planned layout position includes a planned layout point specified by one coordinate value in the horizontal frame plane. The building has a shed bundle supported by the horizontal frame.
The frame layout design method according to claim 11, wherein the planned placement point is set at a position that supports the shed bundle.

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