JP6228495B2 - Structure design apparatus, structure design method, structure design program, and recording medium therefor - Google Patents

Description

  The present invention relates to a structural design apparatus, a structural design method, a structural design program, and a recording medium for automating the selection of building structural materials as much as possible.

    When building a custom-built house, the floor plan desired by the owner is determined and the arrangement of the main structural members is determined. Various techniques have been developed to automate the process of calculating and evaluating the result by a computer. In addition, a technology for automatically selecting a structural material and supporting a designer has been developed.

JP 2013-41418 A JP 2013-111961 A JP 2001-188812 A

The known prior art has the following problems to be solved.
When automating the design of a building, for example, determine the layout of the load-bearing wall according to the required floor plan, determine the structure of the roof and floor while determining the layout of the required strength columns and beams, and I will decide. In order to select a structural material to be used for these, after extracting a candidate for a structural material having a required strength, a material having the lowest construction cost is selected in consideration of a required cross-sectional dimension, material strength, and the like.

  In the case of a house constructed by the wooden frame construction method, joining of the joint portions of the structural materials is performed with a required strength metal. In the joint portion of the structural material, a part of the structural material is cut out or cut according to the shape of the hardware. At this time, there may be a difference between the result of the strength calculation performed on the assumption that the structural materials without cutting are combined and the actual result. As a result, if a comprehensive judgment is made that the design is not safe, the design will be redone.

  In addition, the size of the hardware to be used may not match the size of the structural material, and in this case, the design is re-executed. It is not technically impossible to obtain an optimum design by automatically selecting a structural material using a computer and repeatedly performing redesign while evaluating it.

  However, in the case of a house using a wooden frame construction method, there are many joint portions of structural materials, and the joint structures are also various. When one structural material is changed, the other parts are affected. Therefore, the repeated calculation processing time for redesign becomes enormous. Moreover, it is difficult to predict the calculation time until the optimum design is reached.

  In order to prevent this, in general, a method has been adopted in which a part of automatic design is performed, and a design work is performed while correction and confirmation are performed by a designer who is familiar with the structure of the building each time. In this case, the burden on the skilled designer is great, and it is not easy to improve productivity. In addition, by designing for safety, an excessively high quality structural material may be selected, resulting in high costs.

In order to solve the above problems, an object of the present invention is to provide the following structural design device, structural design method, structural design program, and recording medium therefor.
(1) Almost fully automates the selection of building structural materials, minimizing the burden of confirmation processing by the designer.
(2) To provide an optimal system for designing buildings with wooden frames.

  The following configurations are means for solving the above-described problems.

<Configuration 1>
A calculation module for each part that automatically executes structural design of the building, a verification calculation module, a joint calculation module, a structural calculation module, and a storage device that stores a database for structural design;
The database includes structural material data indicating the specifications of all structural materials used in the structural design, and at least one joint structure that may be employed in the joint of the structural material,
The part-by-part calculation module determines the arrangement of the structural material used for the part of the building in accordance with the specified condition, and refers to the database, and can be used for all locations of the part or parts. Select a structural material and have a function to generate candidate data with an evaluation of the selected structural material.
The test calculation module has a function to test whether the structural material selected by the part-by-part calculation module satisfies the specified condition, and to leave a suitable one in the candidate data,
The said junction calculation module compares the data read from the said database about what has a junction among the structural materials selected by the said site | part calculation module, and leaves what has a common junction structure in the said candidate data It has a function
In the structural calculation module, when a plurality of structural material candidates are selected at the same location, an evaluation for ranking the plurality of structural materials according to a predetermined evaluation criterion is added to each candidate data. When a process for adopting the structural material with the highest evaluation is executed for all locations of the part, a predetermined structural calculation is performed and the result of the structural calculation is output. A structural design device characterized by that.

<Configuration 2>
In the structural design apparatus described in Configuration 1,
The structural calculation module performs a structural calculation as to whether or not all the required conditions for the entire building are satisfied in the predetermined structural calculation, and if the result of this calculation is determined to be inappropriate, The structural design apparatus, wherein the structural material of the corresponding part is excluded from the candidate data, and the result of adopting the structural material having the highest evaluation is accepted and the predetermined structural calculation is executed again.

<Configuration 3>
In the structural design apparatus according to Configuration 1 or 2,
The database includes at least one type of joint structure that may be employed in the joint of the structural material, and at least one type of hardware data that may be used in the joint structure,
When there are multiple parts in the target building, the candidate data listed the structural materials that can be used in all places of those parts, their joint structures, and hardware data with an evaluation. And
The joint calculation module includes a joint structure and a hardware that may be adopted for a plurality of structural materials to be joined at the same place among the structural materials selected for each location of the part. Are compared with each other, and a structural material having common data indicating the joint structure is left in the candidate data.

<Configuration 4>
In the structural design apparatus described in Configuration 2,
The processing results output by the structural calculation module after the structural calculation include structural materials used for all parts, joint structures of all structural materials, hardware data, and structural calculation results.
A structural design apparatus characterized by including a calculation process in a processing result when the predetermined structural calculation is automatically executed again.

<Configuration 5>
The storage device stores a database containing structural material data indicating the types of all structural materials used in the structural design and at least one type of joint structure that may be employed in the joint of the structural material. ,
By calculation processing of modules configured by computers,
Determining the placement of structural materials used in the building site according to specified conditions;
Referring to the above database, select one or more structural materials that can be used in all locations of the above part, test whether the specified conditions are met, and find the candidate data that matches Step to leave and
Comparing the data read from the database for the structural materials included in the candidate data, and leaving the common joint structure in the candidate data,
A step of adding an evaluation for ranking the plurality of structural materials according to a predetermined evaluation criterion when a plurality of structural material candidates are selected at the same location;
Executing the process of adopting the structural material having the highest evaluation for all the locations of the part; and
Performing a structural calculation of whether all required conditions are met for the entire building using the adopted structural material; and
If it is judged that the result of this calculation is inappropriate, the structural material of the corresponding part is excluded from the candidate data, and the result of adopting the structural material with the highest evaluation is accepted and the predetermined structure is again obtained. Performing a calculation;
A step of outputting the result of the structural calculation;
A structural design method comprising:

<Configuration 6>
A structural design program that causes a computer to function as the structural design device described in Configuration 1.

<Configuration 7>
A computer-readable recording medium on which the structural design program according to Configuration 6 is recorded.

<Effect of Configuration 1>
Refer to the database to select one or more structural materials that can be used in all locations of the above part and generate candidate data that evaluates the structural material considering the joint structure. Since the structure does not fit, it is possible to prevent the process of starting over from the beginning.
<Effect of Configuration 2>
As a result of structural calculation, when it is found that the strength of some structural materials is insufficient, etc., it is switched to the next candidate structural material included in the candidate data and recalculated. Can be shortened.
<Effect of Configuration 3>
Since all the structural materials used for each part of the building can be selected from a common database, the management of the database can be facilitated. In addition, if the joint structure that can be adopted for the joint and the hardware are compared with each other, the structure material having the same data indicating the joint structure is left in the candidate data, and the range of the selected structural material Can be easily narrowed down.
<Effect of Configuration 4>
The result of the structural calculation can be evaluated with the eyes of the designer, and the suitability can be confirmed comprehensively.

1 is a block diagram illustrating main functions of a system according to Embodiment 1. FIG. (A) is a hut assembly, (b) is a floor assembly, and (c) is a perspective view showing an example of a joint portion of a structural material. It is an example explanatory drawing of a database. It is a processing operation flowchart in a basic design phase. It is a flowchart of the big flow until it determines all the structural materials and its junction part structure. It is a specific operation | movement flowchart which selects a structural material for every site | part. It is a specific operation | movement flowchart of a junction part calculation module. It is a specific flowchart of the process which adds evaluation to candidate data. It is a flowchart explaining the final processing operation | movement of candidate data.

  Hereinafter, embodiments of the present invention will be described in detail for each example.

FIG. 1 is a block diagram illustrating main functions of the system according to the first embodiment. FIG. 2A is a perspective view showing an example of a hut assembly, FIG. 2B is a floor assembly, and FIG.
The structural design of the building is executed by the following procedure using a computer. This process will be described separately for the basic design phase and the partial design phase. The computer constituting the structural design device 12 includes a display 13, an arithmetic processing device 16, and a storage device 18.

[Basic design phase]
First, as shown in FIG. 1, floor plan data 15 is displayed on the operation screen 14 of the display 13. The floor plan data 15 may be acquired from the basic specifications 17 of the building created in advance. All the positions for arranging the walls in the floor plan data 15 are selected, and it is determined whether the load bearing elements are arranged there or the walls of other structures. Thereafter, the basic calculation module 39 determines the basic structure.

  The process so far may be, for example, an automatic process of automatically applying the wall layout data of the standard floor plan, or a process of determining that the load bearing element is to be arranged at a place designated by the designer with a mouse or the like. The designer may appropriately correct the result of the automatic processing to determine the basic structure data 19 of the building. Using this basic structure data 19 as an input signal, the partial design phase is started.

[Partial design phase]
As shown in FIG. 1, the computer processing device 16 includes a part-by-part calculation module 26, a test calculation module 28, and a joint calculation module 30. These modules correspond to devices having a certain function, and are realized by executing a computer program described later. In the partial design phase, the part-by-part calculation module 26, the test calculation module 28, and the joint calculation module 30 cooperate to perform automatic calculation.

  For example, a building using a wooden frame construction method can be divided into parts such as a shed, a floor, a wall, and a pillar and can be designed. Therefore, as shown in FIG. 1, the part-by-part calculation module 26 is configured to include a hut calculation module 32, a floor calculation module 34, a wall calculation module 36, and a basic calculation module.

  On the other hand, in addition to the building basic specifications 17, floor plan data 15, and basic structure data 19, the database 38, candidate data 50, evaluation reference data 58, and the like are stored in the computer storage device 18. Based on the basic structure data 19 and other predesignated conditions, it is possible to determine the arrangement of the structural material such as the shed and the walls, columns, and floors that support the shed. That is, for example, the cabin set shown in FIG. 2A and the floor set shown in FIG.

  The structural material 20 refers to a load-bearing element such as all the columns and beams constituting these frames. FIG. 2C shows the joint 22 of the structural material 20. In the specification of the application, since the structural material 20 of each part is not handled separately, the same reference numerals are used in the drawings. The same applies to the joint 22. In the joining portion 22, a process of cutting a part of the structural material 20 or attaching the hardware 24 to join the structural material 20 is performed. When attaching the metal object 24, a part of the structural material 20 may be cut.

  If a part of the structural material 20 is cut, the strength may be reduced as compared with that without cutting. At that time, the design strength may not be satisfied unless the structural member 20 having a larger cross-sectional dimension is used. In other words, even if all the structural materials 20 are selected so as to satisfy the design strength, the selection of a part of the structural materials 20 is often changed when the structure of the joint portion 22 is determined. However, if the structural material 20 is changed to a thicker structural material 20 than planned, the hardware 24 for joining the structural material becomes large, and the fitting of the hardware 24 in the joint 22 becomes inconsistent again, so that the other structural materials 20 In some cases, it affects the choice.

  When a large number of structural members 20 are combined in a complicated manner as in the wooden frame construction method, a change in a part of the structural members 20 leads to a change in the surrounding structural members 20 and the structural design becomes extremely complicated. Therefore, a method has been adopted in which a skilled person selects a structural material having a slight margin in structural strength based on experience values to prevent recalculation. In that case, the design becomes excessive in terms of strength, material and dimensions, which hinders cost reduction and weight reduction of the building. In addition, there is a risk of affecting the planar space, ceiling height, and the like.

  In the present invention, in order to almost fully automate this design, a unique database 38 is created in advance and stored in the storage device 18 as shown in FIG. The data in which the part data 40 and the structural material arrangement data 42 are made to correspond is used to determine the arrangement of the structural material 20 for each part of the building as shown in FIGS. The For example, the part data 40 indicates a design or type of a roof such as a gable or a flat roof, and the structural material arrangement data 42 indicates a basic arrangement of each structural material. The arrangement data 42 may include information indicating an appropriate cross-sectional dimension and material range of the structural material arranged at each location. When the dimensions and floor plan of the roof are input, the specific arrangement of all structural materials is calculated.

  Conditions such as the design of the building for selecting the arrangement data of the structural material may be specified by the designer. On the other hand, the selection of each structural material 20 and the selection of the joint portion 22 of the structural material 20 are all automatically performed by the above-described modules in principle. The designer only needs to confirm the result.

  The next set of data stored in the storage device 18 includes structural material data 44, joint structure 46 data, and hardware data 48. The structural material data 44 is data for specifying all the structural materials 20 used for building structural design. That is, the structural material data 44 is data including identification symbols and specifications (material, cross-sectional dimensions, shape, material strength, etc.) of the structural material 20. The specifications should include at least the data necessary for the following structural design. The joint structure 46 data is data indicating all the joint structures 46 that may be employed in the joint 22 of the structural material 20. The hardware data 48 is data that identifies all the hardware 24 that may be used in the joint structure 46, and includes data such as an identification symbol, various dimensions, and material strength of the hardware 24.

  Hereinafter, the usage of this database 38 will be described along with the operation of each module. First, the part-by-part calculation module 26 divides the building into a plurality of parts, and determines the arrangement of the structural members 20 according to the conditions specified for each part. As described above, this process is executed for each part such as a hut, a floor, or a wall. Furthermore, the specific structural material 20 is selected so as to satisfy the specified design strength and the like for all the structural materials 20 used for the part.

  For example, at first, it is preferable to select a large number of structural materials that satisfy the conditions for each location. After that, let the test calculation module 28 and the joint calculation module 30 perform the calculation, and leave only the structural materials that meet the conditions. Finally, it is preferable to finally determine all the structural members 20 in all the parts.

  The verification calculation module 28 has a function of verifying whether the structural material selected by the part calculation module 26 satisfies a constraint condition such as legal regulations. Not only the theoretical strength but also those that satisfy the conditions of material, strength, dimensions, etc., according to laws and regulations, are excluded from selection.

  The joint calculation module 30 determines the joint structure 46 of the structural material 20 for which the location calculation module 26 has determined the arrangement. For example, it is assumed that there are two structural members 20 that are joined at a joint 22. The joint structure 46 and the hardware data 48 corresponding to the structural material data 44 of those structural materials 20 are compared. If there is a common joint structure 46 and hardware data 48, the joint of that structure is selected. If there are a plurality of candidates, they are all selected as candidates, and candidate data 50 is generated.

FIG. 3 is an explanatory diagram of an example of a database.
A, B, and C in the figure are data showing the joint structure of the structural material in the structural material data a1. D and E in the figure are data indicating the joint structure of the structural material in the structural material data a2. F and G in the figure are data indicating the joint structure of the structural material in the structural material data a3. Here, it is assumed that the structural materials of the structural material data a1 and the structural material data a2 are joined to each other at one place. At this time, the joint structure 46 and the hardware data 48 are compared. When the joint structure 46 and the hardware data 48 are common, it is determined that the two structural members 20 can be joined normally.

  In the above example, since A and D correspond, the structural material of the structural material data a1 and the structural material of the structural material data a2 can be joined by the hardware of the hardware data c1 in the joint structure b1. I understand. The number of joint structure 46 and hardware 24 that can be employed is not limited to one. If there are multiple cases, all data sets are left as candidates.

  On the other hand, the structural material data a1 and the structural material 20 of the structural material data a3 are joined to each other at one place. At this time, even if the joint structure 46 and the hardware data 48 are compared, there is no common thing. In that case, one of the structural members 20 is excluded from the candidates, and another structural member is selected. A plurality of structural materials are listed as candidates for each arrangement position of the structural material, and if there are joints, the data indicating which joint structure 46 and hardware 24 are used for any structural material is listed as a candidate. .

  In this way, no matter which structural material in the candidate data is adopted, there is always a joint structure and hardware data that fits in the candidate data. Further, even if a change is made to another structural material included in the candidate data, there is always another structural material having a matching joint structure and hardware data. Therefore, it is possible to sufficiently shorten the calculation time for the process of determining the optimum structural material while performing the structural calculation.

  As shown in FIG. 1, the candidate data 50 for the structural material 20 includes a structural material location 52, a structural material candidate 54, a joint structure 46, hardware data 48, and an evaluation 56. Candidate data 50 that lists one or more structural material candidates is generated for all locations where structural materials are to be placed. When a plurality of structural material candidates 54 are selected at the same place, the plurality of structural materials 20 are ranked according to a predetermined evaluation standard, and the highest structural material 20 is finally adopted. Rating 56 is used for that ranking.

  The evaluation criteria are stored as evaluation criteria data 58 in the storage device 18 as shown in FIG. For example, the cost is evaluated as XX, the size (weight) is evaluated as XX, and the man-hour (construction time) is evaluated as XX, and the total score becomes 56. For example, the cost when the selected candidate is adopted is calculated, and a higher score is assigned as the cost is lower. Also, the smaller the size (weight), the higher the score. The shorter the construction time, the higher the score. The score may be something like a five-level evaluation. The evaluation point calculation formula is included in the evaluation reference data 58.

  Evaluation 56 is calculated for all candidates, the one with the highest number of points is preferentially selected for each location of the structural material, and one type of structural material 20 is determined for each location. The hut calculation module 32, the floor calculation module 34, and the wall calculation module 36 perform the same calculation and output the results. In any module, the generated candidate data 50 is left in the storage device 18 in order to facilitate subsequent correction of the result.

  With the above calculation, the structural materials used at all locations and the structures of the joints were determined for all the parts. The structural calculation module 37 executes the structural calculation of the entire building using the result as input data, and calculates whether all the requirements for the building are satisfied in relation to the load condition, the structure and the strength. To do. If it is determined that the calculation is inappropriate, the corresponding structural material is excluded from the candidate data 50, and the next candidate structural material 20 is adopted and recalculated.

  Then, the structural calculation by the structural calculation module 37 is executed again. The processing result includes the structural material used for all the parts, the joint structure of all the structural materials, and the result of the structural calculation, which are displayed on a display or printed by a printer (not shown) and output. . When recalculation is performed by automatic processing, the progress may be included in the processing result 60 so that the person in charge of design can easily confirm. Further, the candidate data 50 may be included in the output data of the processing result so that the evaluation can be performed by the designer's eyes and partly recalculated.

  In the above embodiment, the structural material selected by the part calculation module 26 is verified by the verification calculation module 28, and the joint calculation module 30 calculates the joint. The timing of this cooperation is arbitrary. For example, after the part-by-part calculation module 26 selects the structural material for the entire part, the test calculation module 28 and the joint calculation module 30 may perform calculation processing in order. What is necessary is just to complete while updating the candidate data 50 in order.

4 to 9 are flowcharts showing a structural design procedure using the above module.
Specific examples of the structural design method and the structural design program will be described with reference to these drawings. The structural design program is recorded on an arbitrary recording medium and installed in the computer shown in FIG.

FIG. 4 is a processing operation flowchart in the basic design phase.
First, in step S11, the operation screen 14 is displayed on the display 13 of the structural design apparatus 12. Next, floor plan data 15 is acquired from the storage device 18 and displayed on the operation screen 14 in step S12. In step S13, for example, the person in charge of the design selects the position of the load-bearing wall with the mouse, and the structural design device 12 receives the result.

  In step S14, the designer determines each wall structure using existing data (not shown). Further, the basic structure is determined in step S15. Including the result, basic structure data 19 is generated and stored in the storage device 18 in step S16.

FIG. 5 is a flow chart of a large flow until all structural materials and their joint structure are determined.
First, in step S21, the database 38 is opened, and all modules are prepared to refer to it. In step S22, a structural material selection process is performed by the part calculation module and the test calculation module. The specific process will be described with reference to FIG.

  In step S23, the joint structure and hardware selection processing by the joint calculation module is executed. The specific process will be described with reference to FIG. Through the above processing, candidate data 50 is generated. In step S25, the structural material with the highest evaluation added to the candidate data 50 is automatically selected to determine all structural materials and connection structures. Thereafter, the structural calculation by the structural calculation module 37 is executed in step S26.

  Here, comprehensive structural calculation of the entire building is performed, and it is determined in step S27 whether or not the selection of the structural material is “adapted”. If not, the process returns to step S25 to select another candidate data. If it matches, the processing result 60 is output in step S28. At this time, a calculation process of automatic processing in which a structural material is reselected as a result of structural calculation may be included in the processing result 60. Specialized engineers can see this calculation process and return to the selection of structural material before recalculation. This makes it possible to change conditions so that costs are prioritized when the criteria for conformity of structural calculations are somewhat strict.

FIG. 6 is a specific operation flow diagram for selecting a structural material for each part.
If the parts to be processed are huts, walls, and floors, these parts are selected in order and this flow is executed. First, in step S31, a part to be processed is selected. Next, in step S32, input of conditions is accepted. A condition such as a design is input. In step S33, the arrangement of the structural material is determined. The arrangement is as shown in FIG.

  Thereafter, the part calculation module 26 refers to the database 38 in step S34. Then, in step S35 and subsequent steps, selection of the structural material for each location is started. In step S36, the test calculation by the test calculation module 28 is executed. Based on the result of the test, it is determined in step S37 whether or not it is “conforming”.

  If the result of this determination is yes, the process proceeds to step S38, and if no, the process returns to step S34 to select another structural material. In step S38, candidate data 50 is generated from the selection result. Since this candidate data 50 is updated several times later, its version is displayed as V1.

FIG. 7 is a specific operation flowchart of the joint calculation module 30.
In step S41, the candidate data obtained by the process of FIG. 6 is read. In step S42, it is determined whether there is a joint using the structural material. When the result of this determination is yes, the process proceeds to step S43, and when no, the process proceeds to step S46. In step S43, the structural material data constituting the joint is compared.

  In step S44, a joint structure and a hardware that are common to the structural members constituting the joint are selected. Using the result, candidate data 50 is generated in step S45. In step S46, it is determined whether or not all locations have been completed. If the processing of all the places where the structural material is to be arranged has been completed, the result of this determination is yes, and the process proceeds to step S47. If no, the process returns to step S41. In step S47, it is determined whether or not all the parts have been completed. If all the parts have not been processed, the process returns to step S41.

  Since the candidate data 50 generated here has not yet been added with the evaluation 56, its version is displayed as V2. This evaluation is added by the process shown in FIG.

FIG. 8 is a specific flowchart of processing for adding evaluation to candidate data.
This processing is executed by the part calculation module 26. In step S51, the candidate data 50 generated so far is read. In step S52, the evaluation reference data 58 is read. In step S53, the evaluation of the candidate data is calculated. In step S54, the candidate data is evaluated and updated based on the calculation result. In step S55, it is determined whether or not “update all candidate data”. If the result of this determination is yes, the process ends. If no, the process returns to step S31.

  The version of the candidate data obtained as a result of this processing is displayed as (V3). Thus, the target candidate data 50 (FIG. 1) is completed. The candidate data 50 obtained at this time is a list of structural materials that can be used in all locations of each part of the target building, their joint structures, and hardware data with an evaluation. is there. Even if any structural material is adopted, the result of the test by the test calculation module is considered to be acceptable, but the result of the last structural calculation may not be met, and the results including the next candidate are listed. Has been.

FIG. 9 is a flowchart for explaining the final processing operation of candidate data.
In step S61, the evaluated candidate data generated by the processing so far is read. In step S62, the evaluations of the structural materials arranged at the same place are compared. Then, in step S63, the one with the highest evaluation is selected to determine the structural material. In step S64, it is determined whether or not all places have been completed. If the result of this determination is yes, the process proceeds to step S65, and if no, the process returns to step S61 to process another candidate.

  In step S65, the structural calculation after all structural materials are determined is executed. In the structural calculation, the structures of all the parts are combined, and the strength of each part of the building including the basic structure data is calculated. Then, in step S66, it is determined whether or not “conforming”. If the result of this determination is yes, the process proceeds to step S69, the process result is output, and all processes are terminated. If no, the process returns to step S65 via steps S67 and 68. That is, in step S67, the structural material causing the inappropriateness is deleted. In step S68, the structural material of the next order is determined. Thereafter, the structural calculation is executed again.

  According to the embodiment described above, the database 38 is designed so that the structure of the joint portion 22 determined in the final stage of design can be predicted when the structural material 20 of each part of the building is selected. A module for structural design selects the structural material 20 while referring to the database 38. At this time, since the candidate of the structural material is selected while including the structure of the joint portion that may be adopted later as a determination element, the selection of a large number of structural materials 20 and the joint portion are performed after the final structural calculation. It is possible to prevent the process of redoing the selection of the 22 structures from the beginning.

  That is, select all the structural material candidates to be placed in each part of the building, generate candidate data for each, add evaluation to the candidate data, and combine the highest rated ones. A structural material with high cost performance can always be automatically and preferentially adopted.

  Furthermore, since the database combining the structural material data, the joint structure, and the hardware data can be used in common for selecting the structural material for all the parts of the building, there is also an effect that the management operation of the database becomes easy.

  At the same time, when joints exist in each structural material, all the joint structures that may be adopted for those structural materials are included in the candidate data, so all the structural material candidates that constitute the joints After the data is generated, the candidate data can be compared to automatically determine a structural material that can employ the same joint structure. Moreover, when it is determined that the result does not match as a result of the subsequent structural calculation, another candidate data may be automatically adopted in the order of the evaluation, so that the structural material can be automatically reselected promptly.

  Therefore, according to the method of the above embodiment, the processing from the selection of the structural material to the structural calculation can be performed unattended and fully automatically. For example, there is a building designed by taking about 15 hours by using a partial automatic design according to a conventional method while a specialist designer works. When the above-described fully automatic design is adopted for this, it has been found that the design and the confirmation process are completed in about one third of the total time including the time for the expert designer to confirm the final result. Furthermore, the time for which a highly skilled designer is restrained can be greatly shortened. In other words, it is sufficient if the computer performs automatic processing and outputs the processing result, which is verified by the designer.

  In addition, since the detailed database 38 is used to select the structural material 20, if the evaluation standard data is set appropriately, design using the insufficient or excessive structural material 20 can be prevented, and an optimal high degree of completion can be achieved. Design can be created automatically.

  In order to execute the process of selecting the structural material 20, the selection process of the structural material 20 is executed for each part for a plurality of modules, and a common database 38 is referred to for any part of the building. Since the calculation can be performed, the update process of the database 38 can be simplified. In particular, a remarkable effect can be expected in the case of the wooden frame construction method. Furthermore, it has the effect of providing maintainability and flexibility that can easily cope with revisions to laws and technical standards.

  Note that the data names and module names described in the above embodiments are used to express their properties, and can be freely replaced with data having an equivalent role. Also, the module can be replaced with one having an equivalent function, and each module may be further subdivided, or one of the modules may be integrated. All of these modules and data may not be stored in one computer, and may be distributed to a plurality of computers. Further, a stand-alone type system or a cloud type system may be used.

  Moreover, said apparatus can be applied also to structural designs other than a wooden frame construction method. In the above embodiment, the calculation for selecting the structural material for each part is executed for the building having a plurality of parts, but the same calculation is performed for the building having only one part for selecting the structural material. Processing can be executed.

DESCRIPTION OF SYMBOLS 12 Structural design apparatus 13 Display 14 Operation screen 15 Floor plan data 16 Arithmetic processing apparatus 17 Basic specification 18 Building 18 Storage device 19 Basic structure data 20 Structural material 22 Joint part 24 Hardware 26 Part calculation module 28 Test calculation module 30 Joint part calculation Module 32 Roof calculation module 34 Floor calculation module 36 Wall calculation module 37 Structural calculation module 38 Database 39 Basic calculation module 40 Site data 42 Structural material arrangement data 44 Structural material data 46 Joint structure 48 Hardware data 50 Candidate data 52 Structural material Location 54 Candidate for structural material 56 Evaluation 58 Evaluation standard data 60 Processing result

Claims (7)

A calculation module for each part that automatically executes structural design of the building, a verification calculation module, a joint calculation module, a structural calculation module, and a storage device that stores a database for structural design;
The database includes structural material data indicating the specifications of all structural materials used in the structural design, and at least one joint structure that may be employed in the joint of the structural material,
The part-by-part calculation module determines the arrangement of the structural material used for the part of the building in accordance with the specified condition, and refers to the database, and can be used for all locations of the part or parts. Select a structural material and have a function to generate candidate data with an evaluation of the selected structural material.
The test calculation module has a function to test whether the structural material selected by the part-by-part calculation module satisfies the specified condition, and to leave a suitable one in the candidate data,
The said junction calculation module compares the data read from the said database about what has a junction among the structural materials selected by the said site | part calculation module, and leaves what has a common junction structure in the said candidate data It has a function
In the structural calculation module, when a plurality of structural material candidates are selected at the same location, an evaluation for ranking the plurality of structural materials according to a predetermined evaluation criterion is added to each candidate data. When a process for adopting the structural material with the highest evaluation is executed for all locations of the part, a predetermined structural calculation is performed and the result of the structural calculation is output. A structural design device characterized by that. The structural design device according to claim 1,
The structural calculation module performs a structural calculation as to whether or not all the required conditions for the entire building are satisfied in the predetermined structural calculation, and if the result of this calculation is determined to be inappropriate, The structural design apparatus, wherein the structural material of the corresponding part is excluded from the candidate data, and the result of adopting the structural material having the highest evaluation is accepted and the predetermined structural calculation is executed again. In the structural design device according to claim 1 or 2,
The database includes at least one type of joint structure that may be employed in the joint of the structural material, and at least one type of hardware data that may be used in the joint structure,
When there are multiple parts in the target building, the candidate data listed the structural materials that can be used in all places of those parts, their joint structures, and hardware data with an evaluation. And
The joint calculation module includes a joint structure and a hardware that may be adopted for a plurality of structural materials to be joined at the same place among the structural materials selected for each location of the part. Are compared with each other, and a structural material having common data indicating the joint structure is left in the candidate data. The structural design device according to claim 2,
The processing results output by the structural calculation module after the structural calculation include structural materials used for all parts, joint structures of all structural materials, hardware data, and structural calculation results.
A structural design apparatus characterized by including a calculation process in a processing result when the predetermined structural calculation is automatically executed again. The storage device stores a database containing structural material data indicating the types of all structural materials used in the structural design and at least one type of joint structure that may be employed in the joint of the structural material. ,
By calculation processing of modules configured by computers,
Determining the placement of structural materials used in the building site according to specified conditions;
Referring to the above database, select one or more structural materials that can be used in all locations of the above part, test whether the specified conditions are met, and find the candidate data that matches Step to leave and
Comparing the data read from the database for the structural materials included in the candidate data, and leaving the common joint structure in the candidate data,
A step of adding an evaluation for ranking the plurality of structural materials according to a predetermined evaluation criterion when a plurality of structural material candidates are selected at the same location;
Executing the process of adopting the structural material having the highest evaluation for all the locations of the part; and
Performing a structural calculation of whether all required conditions are met for the entire building using the adopted structural material; and
If it is judged that the result of this calculation is inappropriate, the structural material of the corresponding part is excluded from the candidate data, and the result of adopting the structural material with the highest evaluation is accepted and the predetermined structure is again obtained. Performing a calculation;
A step of outputting the result of the structural calculation;
A structural design method comprising:   A structural design program for causing a computer to function as the structural design device according to claim 1.   A computer-readable recording medium on which the structural design program according to claim 6 is recorded.

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