Earthquake motion simulation device

Abstract

To immediately provide an approximate result of earthquake motion simulation according to the adjustment of a user.SOLUTION: An earthquake motion simulation device 14 performs earthquake motion simulation at a construction spot represented by construction spot information on the basis of seismic center information, seismic scale information, the construction spot information, and a setting parameter, and causes a display section to display a result of earthquake motion simulation. The earthquake motion simulation device 14 receives an adjustment parameter, which is a parameter input by the user and which is a parameter for adjusting conditions of the earthquake motion simulation. The earthquake motion simulation device 14 corrects the result of the earthquake motion simulation according to the adjustment parameter without performing the earthquake motion simulation again on the basis of the adjustment parameter and the result of the earthquake motion simulation.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an earthquake motion simulation device. [Background technology]

[0002] Conventionally, there are known earthquake motion evaluation model generation methods capable of generating earthquake motion evaluation models for evaluating and predicting earthquake motions that are thought to occur in the future with high accuracy (see, for example, Patent Documents 1 to 5). These earthquake motion evaluation model generation methods generate earthquake motion evaluation models through machine learning. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-189134 [Patent Document 2] Patent Publication No. 2021-189135 [Patent Document 3] Japanese Patent Publication No. 2021-189136 [Patent Document 4] Patent Publication No. 2021-189137 [Patent Document 5] Japanese Patent Publication No. 2021-189138 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, when executing an earthquake motion simulation, it is necessary to set a large number of parameters. For example, when executing an earthquake motion simulation, it is necessary to set a large number of parameters regarding the earthquake source characteristics, such as the location, magnitude, dip, rupture starting point, direction, and speed of the earthquake source. Here, for example, suppose a user sets a large number of parameters and then causes a computer to execute an earthquake motion simulation. In this case, the user may wish to refer to the results of the earthquake motion simulation, change the parameters, and have the computer execute another earthquake motion simulation to confirm the results of the earthquake motion simulation.

[0005] However, there are issues with the large number of parameters that must be set to run a seismic motion simulation, and running a seismic motion simulation again takes a long time. In practice, it is preferable to obtain approximate results of a seismic motion simulation immediately.

[0006] The technologies disclosed in the above Patent Documents 1 to 5 are intended to generate earthquake motion evaluation models for evaluating and predicting earthquake motion with high accuracy, and are not intended to provide approximate results of earthquake motion simulations immediately.

[0007] The present invention has been made in view of the above circumstances, and aims to provide approximate results of earthquake motion simulation in real time in response to user adjustments. [Means for solving the problem]

[0008] a parameter reading unit that reads out setting parameters associated with the hypocenter indicated by the hypocenter information from a storage unit that stores setting parameters, the setting parameters being parameters that are preset for each earthquake hypocenter and related to the conditions of the earthquake motion simulation; a simulation unit that executes an earthquake motion simulation at the construction site indicated by the construction site information based on the hypocenter information, the earthquake magnitude information, and the construction site information acquired by the acquisition unit and the setting parameters read out by the parameter reading unit, and displays the results of the earthquake motion simulation on a display unit; an adjustment parameter receiving unit that receives adjustment parameters input by a user and that are parameters for adjusting the conditions of the earthquake motion simulation; and a correction unit that corrects the results of the earthquake motion simulation in accordance with the adjustment parameters based on the adjustment parameters received by the adjustment parameter receiving unit and the results of the earthquake motion simulation, without executing the earthquake motion simulation again. This allows approximate results of earthquake motion simulation to be provided immediately in response to user adjustments.

[0009] In a second aspect of the present invention, the correction unit corrects the results of the earthquake motion simulation based on the adjustment parameters received by the adjustment parameter receiving unit, correction coefficient parameters that are preset for each type of adjustment parameter and that correct the results of the earthquake motion simulation according to the adjustment parameters, and the results of the earthquake motion simulation. This makes it possible to appropriately correct the results of the earthquake motion simulation according to the preset correction coefficient parameters.

[0010] Furthermore, in a third aspect of the present invention, the correction unit corrects the results of the earthquake motion simulation by inputting the adjustment parameters received by the adjustment parameter receiving unit and the results of the earthquake motion simulation into a trained model that has been trained in advance through machine learning or a statistical model that has been generated in advance, and acquiring the corrected results of the earthquake motion simulation that are output from the trained model or the statistical model. This makes it possible to appropriately correct the results of the earthquake motion simulation using the trained model that has been trained in advance through machine learning or the statistical model that has been generated in advance.

[0011] Furthermore, the earthquake motion simulation of the fourth aspect of the present invention is repeated for each set fault, thereby obtaining simulation results for each fault. [Effects of the Invention]

[0012] According to the present invention, it is possible to obtain an effect that approximate results of earthquake motion simulation can be provided immediately in response to adjustments made by the user. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a block diagram showing an example of the configuration of a seismic motion simulation system 10 according to an embodiment. [Figure 2] FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. [Figure 3] FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. [Figure 4] FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. [Figure 5] FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. [Figure 6] FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. [Figure 7] FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. [Figure 8] FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. [Figure 9]FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. [Figure 10] FIG. 2 is a diagram illustrating an example of the configuration of a computer of the earthquake motion simulation apparatus according to the embodiment. [Figure 11] FIG. 2 is a diagram illustrating an example of a processing routine executed by the earthquake motion simulation device. [Figure 12] FIG. 2 is a diagram illustrating an example of a processing routine executed by the earthquake motion simulation device. [Figure 13] FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. [Figure 14] FIG. 4 is a diagram illustrating an example of a screen displayed on a display unit. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0015] [Outline of the embodiment]

[0016] In recent years, in addition to the earthquake loads (e.g., response spectra) specified by various laws, there are cases where it is necessary to predict earthquake motions that may occur at a construction site through theoretical simulations and use the earthquake motion waveforms in the earthquake-resistant design of a building.

[0017] However, theoretical earthquake motion simulations using conventional earthquake source models require complicated and specialized knowledge to set input parameters (e.g., the location and size of the earthquake source, and the characteristics of the deep ground, etc.), making it difficult for users other than earthquake motion experts to generate design earthquake motion.

[0018] In the seismic design of buildings, design decisions should be made based on the seismic resistance of the building, taking into account both earthquake motion and the building's strength. However, experts in earthquake motion do not necessarily have specialized knowledge of structural design, and structural design experts do not necessarily have specialized knowledge of earthquake motion. Therefore, it is difficult to generate design earthquake motions in a short period of time to properly evaluate the seismic resistance of buildings.

[0019] Furthermore, when calculating simulated earthquake motion using earthquake motion simulation, it is necessary to set various parameters, which can be broadly divided into three types: source characteristics, propagation path characteristics, and ground amplification characteristics. Of these, source characteristics require the setting of numerous parameters such as the source location, magnitude, inclination, rupture starting point, direction, and speed.

[0020] When using conventional calculation programs, it is necessary to create an input text file in which the above parameters are written as numerical information. However, parameters written in such a text file are difficult for non-expert users to understand the three-dimensional and seismological meaning of the parameters, making it difficult for them to properly calculate simulated earthquake motions.

[0021] Furthermore, there are relationships based on seismology between the multiple parameters that describe the hypocenter, making it difficult for non-experts to set appropriate values. Furthermore, since the parameters that describe the hypocenter vary greatly, they cannot be set uniquely, and it is desirable to take these variations into account when predicting earthquake motion. However, excessive changes to the hypocenter parameters can result in the generation of earthquake motion waveforms that are either too large or too small. Therefore, each time a parameter is adjusted, the generated earthquake motion waveform must be presented to the structural designer to confirm the design decision, making it difficult to determine in a short period of time whether the earthquake motion waveform is appropriate.

[0022] Therefore, in this embodiment, we propose an earthquake motion simulation system that presents rough estimates of earthquake motion simulation results to a user on the screen of a PC (Personal Computer), an AR (Augmented Reality) device, a VR (Virtual Reality) device, or a touch device, allowing the user (structural designer) to intuitively set conditions for the earthquake motion simulation and generate earthquake motion waveforms based on the set conditions. The earthquake motion simulation system of this embodiment can instantly provide rough estimates of earthquake motion simulation results in response to user adjustments. This will be explained in detail below.

[0023] [Embodiment] <Configuration of earthquake motion simulation system> Fig. 1 is a block diagram showing an example of the configuration of an earthquake motion simulation system 10 according to an embodiment. Functionally, the earthquake motion simulation system 10 can be represented as a configuration including an operation unit 12, an earthquake motion simulation device 14, and a display unit 16, as shown in Fig. 1.

[0024] The operation unit 12 receives operation information input by a user. The operation unit 12 is, for example, a keyboard, a mouse, etc. Specifically, the user inputs various pieces of information for executing a seismic motion simulation through the operation unit 12.

[0025] The display unit 16 displays information output from the earthquake motion simulation device 14. The display unit 16 is realized by, for example, a display.

[0026] The earthquake motion simulator 14 is configured to include a CPU (Central Processing Unit), a ROM (Read Only Memory) that stores programs and the like for implementing each processing routine, a RAM (Random Access Memory) that temporarily stores data, a memory as a storage means, a network interface, etc. Functionally, the earthquake motion simulator 14 includes a data storage unit 18, an acquisition unit 20, a parameter reading unit 22, a simulation unit 24, an adjustment parameter receiving unit 26, and a correction unit 28, as shown in Fig. 1 .

[0027] The earthquake motion simulator 14 of this embodiment executes an earthquake motion simulation based on average parameters and presents the resulting average earthquake motion simulation result (hereinafter also simply referred to as "average simulation result") to the user. The earthquake motion simulator 14 then corrects the average simulation result based on adjustment parameters input by the user and presents the corrected average simulation result to the user. The user confirms the corrected average simulation result as an approximate result and determines whether or not to execute a detailed earthquake motion simulation under hypocenter conditions corresponding to the corrected average simulation result.

[0028] The following formula (1) is an example of a formula for calculating the average simulation result after correction.

[0029]

number

[0030] G in the above formula (1) i is a rough prediction result based on correction. The average simulation result represents the average earthquake motion characteristics, and i is an index for various results obtained by simulation. For example, G1 represents the earthquake motion time history waveform, and G2 represents the maximum acceleration of earthquake motion, etc. G iExamples of seismic data include time history waveforms of earthquake motion, maximum acceleration, maximum velocity, response spectrum, and seismic intensity.

[0031] In addition, G in the above formula (1) i - represents the average simulation result. j - represents the average setting parameters, and S j represents the tuning parameters input by the user, and C ij represents the correction coefficient parameter, and j is an index representing the type of parameter. ε(1,σ) is an error term with a mean value of 1 and a standard deviation of σ. The adjustment parameter S j is a parameter input by the user to adjust the conditions of the earthquake motion simulation. Correction coefficient parameter C ij is the tuning parameter S j The parameters are preset for each type of adjustment parameter S j Average simulation results according to G i - This is a parameter that corrects the

[0032] The correction coefficient parameter C ij is set in advance using the epicenter information of past earthquakes and the earthquake observation record data at that time. For example, the correction coefficient parameter C ij is the seismic motion characteristic G corresponding to the seismic observation record data of past earthquakes. i It can be calculated in advance by statistical analysis using the earthquake source data (e.g., earthquake motion time history waveform, maximum acceleration, maximum velocity, response spectrum, and seismic intensity, etc.) as explained variables and the earthquake source data (specifically, equivalent to adjustment parameters or setting parameters) as explanatory variables. In addition, the correction coefficient parameter C ij The calculation can be done using machine learning as well as statistical analysis.

[0033] The data storage unit 18 stores data for executing each process. For example, the data storage unit 18 stores a correction coefficient parameter Cij and the tuning parameter S j The data storage unit 18 also stores an average set parameter S for each index j that indicates the type of parameter required to execute a seismic motion simulation. j - The data storage unit 18 also stores various simulation results and the like.

[0034] The acquisition unit 20 acquires hypocenter information relating to the location of the hypocenter of the earthquake to be simulated, earthquake magnitude information relating to the magnitude of the earthquake, and construction site information relating to the construction site where a building will be constructed. The hypocenter corresponds to a fault. For example, the acquisition unit 20 acquires a combination of hypocenter information, earthquake magnitude information, and construction site information (hereinafter simply referred to as "hypocenter conditions") input by the user. Each of these pieces of information is used when executing the seismic motion simulation described below.

[0035] For example, the display unit 16 displays an input screen for the hypocenter conditions as shown in FIGS.

[0036] When a map of Japan as shown in Fig. 2 is displayed on the display unit 16, the user inputs construction site information A into the earthquake motion simulator 14. When an input screen as shown in Fig. 3 is displayed on the display unit 16, the user inputs hypocenter information and earthquake magnitude information into the earthquake motion simulator 14. In this way, the user inputs various hypocenter conditions into the earthquake motion simulator 14 via the input screens as shown in Figs. 2 and 3. When hypocenter information is input via the input screen as shown in Fig. 2, for example, hypocenter B as shown in Fig. 4 is selected as the target hypocenter as the hypocenter (fault) that satisfies the hypocenter information.

[0037] The parameter reading unit 22 reads the average setting parameter S from the data storage unit 18. j - This setting parameter S j -is a parameter set in advance for each earthquake hypocenter and is an average parameter related to the conditions of the earthquake motion simulation.

[0038] The simulation unit 24 uses the source conditions acquired by the acquisition unit 20 and the setting parameters S j - Based on this, the average simulation result G i - Get.

[0039] Then, the simulation unit 24 calculates the average simulation result G i - On the display unit 16, for example, the simulation unit 24 displays the average simulation result G i - The simulation unit 24 displays the adjustment parameter S j The input screen for adjusting the stress drop amount is displayed on the display unit 16. In the input screen of FIG. 6, a message is displayed saying "Please use the scroll bar to set the stress drop amount." Therefore, the user can adjust the adjustment parameter S j Set the stress drop, which is one of the parameters.

[0040] The adjustment parameter S j The input screen may have a format as shown in Fig. 7 and Fig. 8. In the example of Fig. 7, the adjustment parameter S j In the example of Figure 8, the adjustment parameter S j It is possible to set:

[0041] The adjustment parameter receiving unit 26 receives the adjustment parameter S j Accept.

[0042] The correction unit 28 calculates the adjustment parameters Sj and the average simulation result G i - Based on this, the adjustment parameter S can be adjusted without running another earthquake simulation. j Average simulation results according to G i - Correct the following.

[0043] Specifically, the correction unit 28 adjusts the adjustment parameter S j The correction coefficient parameter C ij from the data storage unit 18. Then, the correction unit 28 reads out the adjustment parameter S j and the correction coefficient parameter C ij and the average simulation result G i - Based on this, the average simulation result G i - This allows the adjustment parameter S to be corrected without having to run another earthquake motion simulation. j Average simulation results according to G i - It is possible to correct for this.

[0044] The correction unit 28 calculates the approximate prediction result G i is displayed on the display unit 16. For example, the approximate prediction result G i is displayed on the display unit 16. The user can see the approximate predicted result G i Check the estimated prediction result G i If the user decides to adopt the hypocenter condition, the simulation unit 24 calculates the approximate prediction result G i A normal earthquake motion simulation is performed using the source conditions when the above is obtained.

[0045] This allows the system to instantly provide approximate results of earthquake motion simulations in response to user adjustments. Furthermore, detailed earthquake motion simulations can be performed using the source conditions at the time the approximate results of the earthquake motion simulations were obtained.

[0046] The earthquake motion simulator 14 can be realized, for example, by a computer 60 as shown in Fig. 10. The computer 60 that realizes the earthquake motion simulator 14 includes a CPU 61, a memory 62 as a temporary storage area, and a non-volatile storage unit 63. The computer 60 also includes an input / output interface (I / F) 64 to which input / output devices (not shown) are connected, and a read / write (R / W) unit 65 that controls reading and writing of data from and to a recording medium 69. The computer also includes a network I / F 66 that is connected to a network such as the Internet. The CPU 61, memory 62, storage unit 63, input / output I / F 64, R / W unit 65, and network I / F 66 are connected to one another via a bus 67.

[0047] The storage unit 63 can be realized by a hard disk drive (HDD), a solid state drive (SSD), a flash memory, etc. The storage unit 63 as a storage medium stores a program for causing the computer to function. The CPU 61 reads the program from the storage unit 63, loads it into the memory 62, and sequentially executes the processes contained in the program.

[0048] <Effects of the earthquake motion simulation system>

[0049] Next, the operation of the earthquake motion simulation system 10 will be described.

[0050] When a user inputs predetermined operation information into the earthquake motion simulator 14, the processing routine shown in FIGS. 11 and 12 is executed.

[0051] In step S100, the acquisition unit 20 causes the display unit 16 to display an input screen such as that shown in FIGS.

[0052] The user inputs the earthquake source conditions, which are a combination of earthquake source information, earthquake magnitude information, and construction site information, into the input screen displayed on the display unit 16.

[0053] Next, in step S102, the acquisition unit 20 acquires the hypocenter conditions input by the user.

[0054] In step S104, the simulation unit 24 determines target hypocenter groups for executing the seismic motion simulation. Specifically, the simulation unit 24 determines, as the target hypocenter groups, multiple hypocenters that satisfy the hypocenter information among the hypocenter conditions acquired in step S102.

[0055] In step S106, the simulation unit 24 sets one target hypocenter from the group of target hypocenters determined in step S104.

[0056] In step S108, the parameter reading unit 22 reads the average setting parameter S associated with the target hypocenter set in step S106. j - is read from the data storage unit 18.

[0057] In step S110, the simulation unit 24 calculates the source conditions obtained in step S102 and the setting parameters S j - Based on this, a seismic motion simulation is performed at the construction site indicated by the construction site information among the seismic source conditions. As a result, the average simulation result G i - is obtained.

[0058] In step S112, the simulation unit 24 calculates the average simulation result G i -are displayed on the display unit 16. For example, the display unit 16 displays the average simulation results as shown in Fig. 5, and also displays an input screen for adjustment parameters as shown in Figs. 6 to 8.

[0059] For example, the user inputs the adjustment parameter S j Enter.

[0060] In step S114, the adjustment parameter receiving unit 26 receives the adjustment parameter S j Accept.

[0061] In step S116, the correction unit 28 calculates the adjustment parameter S j The correction coefficient parameter C ij is read from the data storage unit 18.

[0062] In step S118, the correction unit 28 calculates the adjustment parameter S j and the correction coefficient parameter C read out in step S116. ij and the average simulation result G obtained in step S110. i - Based on this, the average simulation result G i - By correcting the i Generate.

[0063] In step S120, the correction unit 28 calculates the approximate prediction result G i on the display unit 16. Furthermore, the correction unit 28 causes the display unit 16 to display an input screen as shown in FIG.

[0064] The user can obtain a rough prediction result G i Check the estimated prediction result G iThe source conditions when the above is obtained are adopted, and a decision is made as to whether or not to perform a detailed earthquake motion simulation using those source conditions.

[0065] The user can obtain a rough prediction result G i If it is determined that the source conditions obtained when the above are to be adopted, an instruction signal to that effect is input to the earthquake motion simulation device 14 via an input screen such as that shown in Fig. 13. For example, "Execute earthquake motion simulation under these conditions" in Fig. 13 is pressed.

[0066] On the other hand, the user can obtain a rough prediction result G i If it is determined that the source conditions obtained when the earthquake motion simulation is not to be adopted, a command signal to that effect is input to the earthquake motion simulator 14 via an input screen such as that shown in Fig. 13. For example, "Reset conditions" in Fig. 13 is pressed.

[0067] In step S122, the simulation unit 24 determines whether the instruction signal input by the user corresponds to the approximate predicted result G i If the instruction signal indicates the adoption of the hypocenter conditions, the process proceeds to step S124 in Fig. 12. On the other hand, if the instruction signal does not indicate the adoption of the hypocenter conditions, the process returns to step S114, and the adjustment parameter input screen is displayed again.

[0068] In step S124, the simulation unit 24 calculates the approximate prediction result G i The adjustment parameter S when j A normal earthquake motion simulation is performed using source conditions equivalent to the above.

[0069] In step S126, the simulation unit 24 displays the results of the earthquake motion simulation obtained in step S124 on the display unit 16. The simulation unit 24 also displays an input screen such as that shown in FIG.

[0070] The user checks the results of the earthquake motion simulation displayed on the display unit 16 and decides whether or not to adopt the earthquake motion generated by the simulation as the design earthquake motion. If the user decides to adopt the earthquake motion generated by the simulation as the design earthquake motion, the user inputs an instruction signal to that effect to the earthquake motion simulator 14. For example, the user presses "Consider earthquake motion of this epicenter in the design" in Figure 14.

[0071] On the other hand, if the user decides not to use the earthquake motion generated by the simulation as the design earthquake motion, he or she inputs an instruction signal to that effect into the earthquake motion simulation device 14. For example, the user presses "Do not consider earthquake motion of this hypocenter in the design" or "Reconsider from the condition settings" in Fig. 14.

[0072] In step S128, the simulation unit 24 determines whether the instruction signal input by the user indicates that the seismic motion generated by the simulation is to be used as the design seismic motion. If the instruction signal indicates that the seismic motion should be used as the design seismic motion, the process proceeds to step S130. On the other hand, if the instruction signal does not indicate that the seismic motion should be used as the design seismic motion, the process returns to step S114, and the adjustment parameter input screen is displayed again.

[0073] In step S130, the simulation unit 24 determines whether the processes of steps S106 to S128 have been performed for all hypocenters included in the target hypocenter group set in step S104. If the processes of steps S106 to S128 have been performed for all hypocenters included in the target hypocenter group set in step S104, the process proceeds to step S132. On the other hand, if there is any hypocenter included in the target hypocenter group for which the processes of steps S106 to S128 have not been performed, the process returns to step S106 and a new hypocenter is set. This allows the earthquake motion simulation to be repeated for each set fault.

[0074] In step S132, the simulation unit 24 outputs the design earthquake motions for each hypocenter obtained in step S124 as results, and then ends the processing routine. The design earthquake motions can be output, for example, in CSV data with the time in the first column and the acceleration value in the second column.

[0075] Each of the design earthquake motions for each seismic source obtained in step S132 is used by the user.

[0076] As described above, the earthquake motion simulation device 14 of the embodiment acquires hypocenter information regarding the location of the hypocenter of the earthquake to be simulated, earthquake magnitude information regarding the magnitude of the earthquake, and construction site information regarding the construction site where a building will be constructed. The earthquake motion simulation device 14 reads setting parameters associated with the hypocenter indicated by the hypocenter information from a data storage unit that stores setting parameters, which are parameters preset for each earthquake hypocenter and are parameters related to the conditions of the earthquake motion simulation. The earthquake motion simulation device 14 executes an earthquake motion simulation at the construction site indicated by the construction site information based on the acquired hypocenter information, earthquake magnitude information, and construction site information and the read setting parameters, and displays the results of the earthquake motion simulation on a display unit. The earthquake motion simulation device 14 accepts adjustment parameters input by a user, which are parameters for adjusting the conditions of the earthquake motion simulation. Based on the accepted adjustment parameters and the results of the earthquake motion simulation, the earthquake motion simulation device 14 corrects the results of the earthquake motion simulation in accordance with the adjustment parameters without executing the earthquake motion simulation again. This allows the device to immediately provide approximate results of the earthquake motion simulation in accordance with the user's adjustments.

[0077] According to the earthquake motion simulator 14 of the embodiment, conditions for earthquake motion simulation can be set by intuitive operations, and approximate prediction results of earthquake motion simulation for the set conditions can be displayed immediately.

[0078] More specifically, the earthquake motion simulation device 14 of the embodiment allows non-experts on earthquake motion, including structural designers, to intuitively set hypocenter conditions, and the approximate results of a simulation based on the set hypocenter conditions are immediately displayed. This allows the user to consider the earthquake resistance of a building while taking into account both conditions related to the earthquake and hypocenter and conditions related to the building.

[0079] Furthermore, by using the earthquake motion simulation system 10, which is equipped with a scroll bar, touch panel, VR / AR, and the like, users can intuitively set parameters for candidate earthquake source conditions to be considered. Ultimately, an earthquake motion simulation is performed for the set earthquake source conditions, but because running an earthquake motion simulation takes time, it is extremely time-consuming to rerun the earthquake motion simulation every time the parameters are revised. In contrast, the earthquake motion simulation system 10 corrects the earthquake motion prediction results for average parameters using a correction coefficient, thereby instantly displaying approximate earthquake motion waveforms and response spectra corresponding to the parameters set by the structural designer (the user). This allows the structural designer to set earthquake source conditions while checking the earthquake motion waveforms and response spectra.

[0080] The present invention is not limited to the above-described embodiment, and various modifications and applications are possible without departing from the spirit and scope of the present invention.

[0081] For example, the earthquake motion simulation device 14 of the above embodiment has been described with reference to an example in which the average simulation result is corrected according to the above formula (1), but the present invention is not limited to this. For example, the adjustment parameters and the average simulation result may be input to a trained model that has been trained in advance by machine learning or a statistical model that has been generated in advance, and the results of the earthquake motion simulation may be corrected by obtaining the corrected results of the earthquake motion simulation output from the trained model or statistical model. In this case, the trained model or statistical model is generated in advance based on training data that is a combination of input data to the trained model or statistical model and output data from the trained model or statistical model.

[0082] Furthermore, although the above describes an embodiment in which the program according to the present invention is pre-stored (installed) in a storage unit, the program according to the present invention can also be provided in a form in which it is recorded on a recording medium such as a CD-ROM, DVD-ROM, or microSD card. [Explanation of symbols]

[0083] 10 Earthquake motion simulation system 12 Control section 14 Earthquake motion simulation device 16 Display 18 Data storage unit 20 Acquisition Department 22 Parameter reading section 24 Simulation Department 26 Adjustment parameter reception section 28 Correction section 60 Computer

Claims

1. an acquisition unit that acquires epicenter information relating to the location of the epicenter of an earthquake to be simulated, earthquake magnitude information relating to the magnitude of the earthquake, and construction site information relating to a construction site representing a site where a building will be constructed; a parameter reading unit that reads out, from a storage unit that stores setting parameters that are preset for each earthquake hypocenter and are parameters related to conditions for earthquake motion simulation, the setting parameters associated with the hypocenter indicated by the hypocenter information; a simulation unit that executes an earthquake motion simulation at the construction site indicated by the construction site information based on the epicenter information, the earthquake magnitude information, and the construction site information acquired by the acquisition unit and the setting parameters read out by the parameter reading unit, and displays the results of the earthquake motion simulation on a display unit; an adjustment parameter receiving unit that receives adjustment parameters input by a user, the adjustment parameters being parameters for adjusting conditions of the seismic motion simulation; a correction unit that corrects the result of the earthquake motion simulation in accordance with the adjustment parameters received by the adjustment parameter receiving unit and the result of the earthquake motion simulation, without executing the earthquake motion simulation again; and Earthquake motion simulation equipment equipped with

2. the correction unit corrects the result of the earthquake motion simulation based on the adjustment parameters received by the adjustment parameter receiving unit, correction coefficient parameters that are parameters set in advance for each type of adjustment parameter and that correct the result of the earthquake motion simulation in accordance with the adjustment parameters, and the result of the earthquake motion simulation. The earthquake motion simulation device according to claim 1.

3. the correction unit inputs the adjustment parameters received by the adjustment parameter receiving unit and the result of the earthquake motion simulation into a trained model that has been machine-learned in advance or a statistical model that has been generated in advance, and acquires the corrected result of the earthquake motion simulation that is output from the trained model or the statistical model, thereby correcting the result of the earthquake motion simulation. The earthquake motion simulation device according to claim 1.

4. The seismic motion simulation is repeated for each set fault. The earthquake motion simulation device according to any one of claims 1 to 3.

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