Structure earthquake resistance evaluation device, method and program
The seismic performance evaluation apparatus addresses inefficiencies and errors in current seismic resistance evaluation methods by automating the processing of response spectra and enhancing data management, resulting in more accurate and efficient evaluations.
Patent Information
- Application Number
- JP2023203290
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-30
- Publication Date
- 2025-06-11
AI Technical Summary
Current methods for evaluating the seismic resistance of structures are inefficient and prone to errors due to the manual selection of data for response spectrum processing, leading to overly conservative evaluations and difficulties in confirming processing history.
A seismic performance evaluation apparatus that automates the envelope and broadening processing of response spectra in a vibration system model, allowing for the selection of response spectra based on varying seismic waveforms and analysis conditions, and facilitating the display and re-processing of attribute information related to the response spectra.
Simplifies the envelope and broadening processing of response spectra, reduces human error in data selection and processing, and enhances the ability to confirm processing history, thereby improving the efficiency and accuracy of seismic resistance evaluations.
Smart Images

Figure 2025088528000001_ABST
Abstract
Description
Technical Field
[0001] Embodiments of the present invention relate to a technique for evaluating the seismic resistance of a structure.
Background Art
[0002] An earthquake vibration waveform is input into a vibration system model of a structure, and the seismic resistance of the structure is evaluated from the response spectrum of the mass points obtained by analysis. Further, this response spectrum of the mass points is used for the design of equipment and piping systems as needed.
[0003] This response spectrum of the mass points greatly depends on the earthquake vibration waveform to be input and analysis conditions such as ground rigidity, concrete rigidity, direction, and damping constant. For this reason, the seismic resistance evaluation conservatism is ensured by envelope processing a plurality of response spectra with different types of earthquake vibration waveforms and analysis condition settings, or by widening each response spectrum.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Patent Document 2
Patent Document 3
Summary of the Invention
Problems to be Solved by the Invention
[0005] However, in order to prevent the seismic performance evaluation from becoming overly conservative, the processing requirements for the envelope and broadening of the response spectrum and the types of seismic waves need to be appropriately set. However, such setting actions require humans to individually select the data of the target response spectrum, which is extremely inefficient, such as inducing setting errors. In addition, it may be cumbersome to confirm the processing history, such as how to envelope individual response spectra with different seismic vibration waveforms and analysis conditions, etc., for the response spectrum after the envelope and broadening processing.
[0006] Embodiments of the present invention have been made in consideration of such circumstances, and an object thereof is to provide a seismic performance evaluation technology for structures that simplifies the envelope and broadening processing of the response spectrum in a vibration system model and also facilitates the confirmation of the processing history.
Means for Solving the Problems
[0007] In a seismic performance evaluation apparatus for a structure according to an embodiment, an acquisition unit that acquires a vibration system model of the structure and a seismic waveform signal input to this vibration system model, a first setting unit that sets analysis conditions for the vibration system model, an analysis unit that analyzes the response spectrum of each region of the vibration system model based on the seismic waveform signal and the analysis conditions, a selection unit that selects the response spectra in which at least one of the seismic waveform signal and the analysis conditions is different, a second setting unit that sets processing conditions for envelope processing and broadening processing, an envelope processing unit that performs envelope processing on the selected plurality of response spectra, a broadening processing unit that performs broadening processing on the selected response spectra, a display unit that displays attribute information combining the vibration system model, the seismic waveform signal, the analysis conditions, and the processing conditions related to the response spectrum, and an operation unit that causes the response spectrum to be re-analyzed or re-processed based on the attribute information obtained by operating at least one of the vibration system model, the seismic waveform signal, the analysis conditions, and the processing conditions.
Advantages of the Invention
[0008] According to an embodiment of the present invention, there is provided a seismic resistance evaluation technique for a structure that simplifies the envelope and width processing of the response spectrum in a vibration system model and facilitates the confirmation of the processing history.
Brief Description of the Drawings
[0009]
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Modes for Carrying Out the Invention
[0010] (First Embodiment) Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. FIG. 1 is a block diagram showing a seismic performance evaluation apparatus 10A (10) (hereinafter simply referred to as "apparatus 10A") according to a first embodiment of the present invention. FIG. 2(A) is a time history graph of the seismic waveform signal 26. FIG. 2(B) is a conceptual diagram of the vibration system model 25. FIG. 2(C) is a time history graph of the response value (acceleration) at the mass point 24. FIG. 2(D) is a graph of the response spectrum 27 at the mass point 24.
[0011] As shown in FIGS. 1 and 2, the apparatus 10A includes an acquisition unit 15 that acquires a vibration system model 25 of a structure and a seismic waveform signal 26 input to the vibration system model 25, a first setting unit 11 that sets analysis conditions 21 of the vibration system model 25, and an analysis unit 16 that analyzes the response spectrum 27 of each region (mass point 24) of the vibration system model 25 based on the seismic waveform signal 26 and the analysis conditions 21.
[0012] Furthermore, the apparatus 10A includes a selection unit 17 that selects response spectra 27 in which at least one of the seismic waveform signal 26 and the analysis conditions 21 is different, a second setting unit 12 that sets processing conditions 22 for envelope processing and width expansion processing, an envelope processing unit 35 that performs envelope processing on the selected plurality of response spectra 27, and a width expansion processing unit 36 that performs width expansion processing on the selected response spectrum 27.
[0013] Furthermore, the apparatus 10A includes a display unit 32 that displays attribute information 28 combining the vibration system model 25, the seismic waveform signal 26, the analysis conditions 21, and the processing conditions 22 related to the response spectrum 27, and an operation unit 31 that re-analyzes or re-processes the response spectrum 27 based on the attribute information 28 obtained by operating at least one of the vibration system model 25, the seismic waveform signal 26, the analysis conditions 21, and the processing conditions 22.
[0014] Examples of the vibration system model 25 include a one-axis model in which the mass of each floor of the structure is concentrated at the mass point 24, or a multi-axis mass point system model in which each main structure is treated independently as the mass point 24. Other examples of the vibration system model 25 include a three-dimensional FEM model using the finite element method (FEM) that divides the structure into element regions called meshes, but there is no particular limitation.
[0015] As the earthquake waveform signal 26, the waveforms of accelerations recorded separately in the north-south direction (NS), east-west direction (EW), and vertical direction (UD) in past earthquakes are applied. Other examples of the earthquake waveform signal 26 include accelerations, velocities, displacements, tensile forces, shear forces, moments, stresses, and strains created by simulation, but there is no particular limitation and they are applicable.
[0016] As shown in Fig. 3(A), examples of the analysis conditions 21 include ground stiffness, concrete stiffness, elevation, mass point number, direction, and damping constant, but are not limited thereto. The types of analysis parameters required for the vibration system model 25 are the subject of the analysis conditions 21.
[0017] Fig. 3(A) is a list screen displayed on the display unit 32. This list screen shows the attribute information 28 associated with the analysis data 27a (Fig. 1) of the response spectrum. By the operation unit 31 operated by the operator, the acquisition unit 15 acquires one vibration system model 25 representing the structure for which the seismic response analysis is to be performed and one earthquake waveform signal 26. Further, various analysis conditions 21 are set by the first setting unit 11 via the operation unit 31.
[0018] The earthquake waveform signal 26 is stored as data in a text format file, but by clicking on the operation unit 31, a time history graph as shown in Fig. 2(A) can be displayed on the display unit 32. Also, the list of the attribute information 28 (28a, 28b) shown in Fig. 3, the various analysis conditions 21, the vibration system model 25, and the earthquake waveform signal 26 on the display unit 32 can be set and changed from the operation unit 31.
[0019] The analysis unit 16 (Fig. 1) analyzes the response spectrum 27 of each region (mass point 24) based on the seismic waveform signal 26 and the analysis conditions 21. As shown in Figs. 2(A) and (B), the seismic waveform signal 26 is given as the input wave to the foundation of the vibration system model 25 of the structure. Then, as shown in Fig. 2(C), the time history of the response value (acceleration) in the target region (mass point 24) of the vibration system model 25 is analyzed. Further, as shown in Fig. 2(D), the response spectrum 27 is analyzed with the natural period or natural frequency on the horizontal axis, the maximum response value on the vertical axis, and the damping constant, etc. as parameters.
[0020] The response spectrum 27 derived by the analysis unit 16 in this way is accompanied by the attribute information 28 and stored as the analysis data 27a. The analysis data 27a of the response spectrum stored in this way can be referred to on the list screen (Fig. 3(A)) displayed on the display unit 32 as described above. Also, by performing a click operation on the operation unit 31, a graph of the response spectrum 27 as shown in Fig. 2(D) can be displayed on the display unit 32. Further, in the list screen (Fig. 3(A)), by changing at least one of the seismic waveform signal 26 and the analysis conditions 21, the analysis data 27a of the response spectrum 27 can be re-analyzed.
[0021] Fig. 3(B) is the list screen displayed on the display unit 32. This list screen shows the attribute information 28 associated with the processed data 27b (Fig. 1) of the response spectrum. By the operation unit 31 operated by the operator, the second setting unit 12 sets the processing conditions 22 for the envelope and the width. On the display unit 32, the attribute information 28 combining the vibration system model 25, the seismic waveform signal 26, the analysis conditions 21, and the processing conditions 22 related to the response spectrum data 27 (27a, 27b) is displayed accompanying the analysis data 27a and the processed data 27b.
[0022] The selection unit 17 selects the response spectrum 27 from the stored analysis data 27a by the operation unit 31 operated by the operator. Note that the selection unit 17 can also select the processed data 27b of the response spectrum in which at least one of the envelope and the width described later has already been processed.
[0023] When processed by the envelope processing unit 35, the selection unit 17 selects a plurality of response spectra 27 in which at least one of the seismic waveform signal 26 and the attribute information 28 (analysis condition 21, processing condition 22) is different. Further, when processed by the broadening processing unit 36, the selection unit 17 selects one response spectrum 27 from those stored. When processed by the envelope processing unit 35, in order to cause the selection unit 17 to select the response spectrum 27, in the operation unit 31, at least one of the seismic waveform signal 26 and the attribute information 28 that is to be made different may be specified, or at least one that is to be made the same may be specified.
[0024] Based on FIGS. 4(A), (B), and (C), the operation of the envelope processing unit 35 will be described. Here, FIGS. 4(A) and (B) are the analysis data 27a of the response spectra 27 in which at least one of the seismic waveform signal 26 and the attribute information 28 (analysis condition 21, processing condition 22) is different from each other 1 , 27a 2 . FIG. 4(C) is the processed data 27b of the response spectrum obtained by performing envelope processing so as to circumscribe all of the plurality of analysis data 27a 1 , 27a 2 . Note that FIG. 4 is an example in which two pieces of analysis data 27a
[0025] 1 , 27a 2 are enveloped to obtain the processed data 27b. However, it is also possible to select three or more pieces of analysis data 27 and perform envelope processing, or it is also possible to include the processed data 27b in the selection and perform envelope processing. In this way, the envelope processing unit 35 envelopes the selected plurality of response spectra 27 to obtain the processed data 27b.
[0026] FIG. 6(A) is an example of a setting screen when the envelope processing is executed by the operation unit 31. For the "seismic waveform signal" among the attribute information 28, it is preferable to perform envelope processing on a plurality of pieces of analysis data 27a reflecting various types. Also, it is possible to perform envelope processing on a plurality of pieces of analysis data 27a reflecting a common seismic waveform signal. Thereby, the processed data 27b of the response spectrum with high maintainability can be obtained.
[0027] Regarding the "ground stiffness" among the attribute information 28, considering the variation in ground physical properties, it is advisable to perform an envelope process on a plurality of analysis data 27a that reflect common analysis conditions 21 such as a hard ground case, a soft ground case, and a basic case. Thereby, processed data 27b of a response spectrum 27 with high maintainability can be obtained.
[0028] Regarding the "concrete stiffness" among the attribute information 28, considering the variation in concrete physical properties, it is advisable to perform an envelope process on a plurality of analysis data 27a that reflect common analysis conditions 21 such as a hard concrete case, a soft concrete case, and a basic case. Thereby, processed data 27b of a response spectrum 27 with high maintainability can be obtained.
[0029] Regarding the "elevation" among the attribute information 28, considering that the sway of buildings and the like may vary depending on the location even on the same floor, it is advisable to perform an envelope process on a plurality of analysis data 27a on the same floor. Thereby, processed data 27b of a response spectrum 27 with high maintainability can be obtained.
[0030] Regarding the "direction" among the attribute information 28, due to the difference in the vibration system model 25 between the east-west direction and the north-south direction, the response time history of the mass point 24 (Fig. 2(c)) may also be different. Therefore, by performing an envelope process on the response spectra 27 of separate analysis data 27a in the north-south direction (NS), east-west direction (EW), and vertical direction (UD), more highly maintainable processed data 27b can be obtained.
[0031] Regarding the "damping constant" among the attribute information 28, the larger the value, the earlier the sway decays and the smaller the analysis data 27a becomes. Therefore, by performing an envelope process on the response spectrum 27 considering the damping constant, more highly maintainable processed data 27b can be obtained. The damping constant to be applied is set according to equipment such as pumps and pipes, and the response spectrum 27 can be used appropriately according to the damping constant.
[0032] Based on FIGS. 5(A) and 5(B), the operation of the widening processing unit 36 will be described. Here, FIG. 5(A) shows the analysis data 27a or the processed data 27b of the response spectrum 27 selected by the selection unit 17 1 is. FIG. 5(B) shows the processed data 27b obtained by widening the selected response spectrum 27 2 is.
[0033] FIG. 6(B) shows an example of a setting screen when the widening process is executed by the operation unit 31. By using the analysis data 27a to obtain the processed data 27 widened at a ratio determined by the analysis conditions in the period axis direction or the maximum response value axis direction, for example, uncertainties such as ground characteristics can be taken into account.
[0034] Note that the widening processing unit 36 can also process by including not only the analysis data 27a but also the processed data 27b obtained by envelope processing in the selection. In this way, the widening processing unit 36 creates the processed data 27b by widening any one of the selected response spectra 27.
[0035] The operation unit 31 causes the analysis data 27a and the processed data 27b to be re-analyzed or re-processed based on the attribute information 28 obtained by operating at least one of the vibration system model 25, the seismic waveform signal 26, the analysis conditions 21, and the processing conditions 22. Further, the re-analyzed or re-processed data can be further re-analyzed or re-processed. Thereby, in the case of envelope processing, a plurality of response spectra 27 can be selected based on the attribute information 28, and processing can be performed in units of the attribute information 28. Also, in the case of widening processing, it can be uniformly executed for the specified response spectrum 27. Thereby, judgment errors and input errors caused by human work can be reduced. Also, envelope processing or widening processing can be added to the response spectrum 27 for which envelope processing or widening processing has already been performed.
[0036] (Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. 7. FIG. 2 is a conceptual diagram of a data transmission path in a seismic resistance evaluation apparatus 10B (10) (hereinafter simply referred to as "apparatus 10B") according to the second embodiment. The apparatus 10B of the second embodiment has the same components as the apparatus 10A of the first embodiment described above, but the operation unit 31 and the display unit 32 access the first setting unit 11 and the second setting unit 12 via the Internet 37. In FIG. 7, parts having the same configuration or function as those in FIG. 1 are denoted by the same reference numerals, and redundant descriptions are omitted.
[0037] The components of the apparatus 10B share a transmission path 39 for exchanging data and signals, and are connected to the Internet 37 via a transmission / reception unit 38 such as a router. Therefore, if the terminal 30 of the operation unit 31 and the display unit 32 can be connected to the Internet 37, an operator having access authority can log in to the apparatus 10B from an arbitrary location and perform operations and viewing.
[0038] (Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIGS. 8 and 9. FIG. 8 is a block diagram showing a seismic resistance evaluation apparatus 10C (10) (hereinafter simply referred to as "apparatus 10C") according to the third embodiment. In FIG. 8, parts having the same configuration or function as those in FIG. 1 are denoted by the same reference numerals, and redundant descriptions are omitted. FIG. 9 is a tree diagram showing the data processing history of the response spectrum 27. In FIG. 9, FRS_A to E indicate analysis data 27a, and envelopes A, B, C, and width A indicate processed data 27b.
[0039] The apparatus 10C of the third embodiment has a configuration in which a generation unit 18 is further added to the configurations of the apparatus 10A of the first embodiment and the apparatus 10B of the second embodiment described above. The generation unit 18 (FIG. 8) generates a chart representing the relationship based on the operation history of the attribute information 28 for the data 27 (27a, 27b) that is the source of the re-analyzed or re-processed data 27 (27a, 27b), and displays it on the display unit 32. Although a tree diagram is exemplified as a diagram representing the relationship based on the operation history, it is not particularly limited.
[0040] In the list screen of FIG. 3, after specifying the processed data 27b of the response spectrum, by clicking the tree diagram generation button (not shown), the tree diagram (FIG. 9) can be expanded on the display unit 32. Thereby, it is possible to confirm from the tree diagram the history of how the specified processed data 27b has been enveloped and widened through what process. When a node of the tree diagram shown at the upper part of FIG. 9 is specified, with respect to the corresponding data 27 (27a, 27b), the attribute information as shown at the lower left of FIG. 9 and the graph of the response spectrum 27 as shown at the lower right of FIG. 9 are displayed on the display unit 32.
[0041] From such a tree diagram, it is possible to analyze what is dominant among the original analysis data 27a (FRS_A to E) for the processed data 27b (envelope C) of interest. By automatically visualizing and making it possible to compare the related response spectra 27 in this way, simplification of the analysis is achieved.
[0042] Based on the flowchart of FIG. 10, the steps of the seismic resistance evaluation method for a structure according to an embodiment of the present invention and the algorithm of the seismic resistance evaluation program for a structure will be described (refer to FIGS. 1 and 3 as appropriate).
[0043] First, by operating the terminal 30, the vibration system model 25 of the structure is acquired (S11), and the seismic waveform signal 26 is acquired (S12). Then, as shown in FIG. 3(A), the analysis conditions 21 are set for the vibration system model 25 (S13). Thereby, each response spectrum 27 of the region (mass point 24) of the vibration system model 25 is analyzed based on the seismic waveform signal 26 and the analysis conditions 21 (S14), and the analysis data 27a is stored (S15).
[0044] Then, at least one of the seismic waveform signal 26 and the analysis conditions 21 is changed (S16; Yes), and the response spectrum 27 is re-analyzed and the analysis data 27a is stored (S12 to S16; No).
[0045] Next, the response spectrum 27 is selected from the stored data (S17). Then, the processing conditions 22 are set (S18), and the envelope processing of the selected multiple response spectra 27 is executed (S19), or the selected response spectrum 27 is widened (S20). Then, the processed data 27b is stored (S21), and the multiple response spectra 27 associated with the attribute information 28 are displayed in a list on the display unit 32 as shown in FIGS. 3(A) and (B), or are displayed in a tree diagram as shown in FIG. 9 (S22).
[0046] Next, at least one of the vibration system model 25, the seismic waveform signal 26, the analysis conditions 21, and the processing conditions 22 among the attribute information 28 is changed by the operation unit 31 (S23; Yes), the response spectrum 27 is re-analyzed or re-processed, and the updated processed data 27b is stored in the data (S12 to S23; No, END).
[0047] According to the seismic resistance evaluation apparatus for a structure of at least one embodiment described above, by reprocessing this data based on the attribute information attached to the response spectrum data, the envelope and widening processing of the response spectrum in the vibration system model can be simplified.
[0048] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, changes, and combinations can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, as well as in the invention described in the claims and the equivalent scope thereof.
[0049] The earthquake resistance evaluation device for the structure described above includes a control device with highly integrated processors such as a dedicated chip, FPGA (Field Programmable Gate Array), GPU (Graphics Processing Unit), or CPU (Central Processing Unit), a storage device such as ROM (Read Only Memory) and RAM (Random Access Memory), an external storage device such as HDD (Hard Disk Drive) and SSD (Solid State Drive), a display device such as a display, an input device such as a mouse and a keyboard, and a communication I / F, and can be realized with a hardware configuration using an ordinary computer. Therefore, the components of the earthquake resistance evaluation device for the structure can also be realized by a computer processor and can be operated by an earthquake resistance evaluation program for the structure.
[0050] Also, the earthquake resistance evaluation program for the structure is provided by being pre-installed in a ROM or the like. Alternatively, this program may be stored in a computer-readable storage medium such as a CD-ROM, CD-R, memory card, DVD, flexible disk (FD), etc. in an installable or executable file format and provided.
[0051] Also, the earthquake resistance evaluation program for the structure according to the present embodiment may be stored on a computer connected to a network such as the Internet and provided by being downloaded via the network. Further, the earthquake resistance evaluation device for the structure can also be configured by connecting separate modules that independently exhibit each function of the components to each other via a network or a dedicated line and combining them.
Explanation of Reference Numerals
[0052] 10 (10A, 10B, 10C) … earthquake resistance evaluation device, 11 … first setting unit, 12 … second setting unit, 15 … acquisition unit, 16 … analysis unit, 17 … selection unit, 18 … generation unit, 21 … analysis conditions, 22 … processing conditions, 24 … mass point, 25 … vibration system model, 26 … seismic waveform signal, 27 … data, 27 … response spectrum, 27a … analysis data (data), 27b (27b 1 , 27b 2 ) … processed data (data), 27 … analysis data, 28 … attribute information, 30 … terminal, 31 … operation unit, 32 … display unit, 35 … envelope processing unit, 36 … width processing unit, 37 … Internet, 38 … transmission / reception unit, 39 … transmission path.
Claims
1. An acquisition unit that acquires a vibration system model of a structure and a seismic waveform signal input to the vibration system model, a first setting unit that sets analysis conditions for the vibration system model, an analysis unit that analyzes the response spectrum of each region of the vibration system model based on the seismic waveform signal and the analysis conditions, a selection unit that selects the response spectra in which at least one of the seismic waveform signal and the analysis conditions is different, a second setting unit that sets processing conditions for envelope processing and width expansion processing, an envelope processing unit that performs envelope processing on a plurality of selected response spectra, a width expansion processing unit that performs width expansion processing on the selected response spectra, a display unit that displays attribute information combining the vibration system model, the seismic waveform signal, the analysis conditions, and the processing conditions related to the response spectra, An earthquake resistance evaluation device for a structure, comprising an operation unit that re-analyzes or re-processes the response spectrum based on the attribute information obtained by operating at least one of the vibration system model, the seismic waveform signal, the analysis conditions, and the processing conditions.
2. In the earthquake resistance evaluation device for a structure according to Claim 1, the selection unit can also select the response spectra for which at least one of the envelope processing and the width expansion processing has been processed. An earthquake resistance evaluation device for a structure.
3. In the earthquake resistance evaluation device for a structure according to Claim 1 or Claim 2, the display unit and the operation unit access the first setting unit and the second setting unit via the Internet. An earthquake resistance evaluation device for a structure.
4. In the earthquake resistance evaluation device for a structure according to Claim 1 or Claim 2, The earthquake resistance evaluation device for a structure includes a generation unit that generates and displays a chart showing the relationship of the response spectrum serving as the basis of the response spectrum based on the operation history of the attribute information.
5. A step of acquiring a vibration system model of a structure and a seismic waveform signal input to the vibration system model, a step of setting analysis conditions for the vibration system model, a step of analyzing the response spectrum of each region of the vibration system model based on the seismic waveform signal and the analysis conditions, a step of selecting the response spectra in which at least one of the seismic waveform signal and the analysis conditions is different, a step of setting processing conditions for envelope processing and width expansion processing, a step of performing envelope processing on a plurality of selected response spectra, a step of performing width expansion processing on the selected response spectra, displaying attribute information combining the vibration system model related to the response spectrum, the seismic waveform signal, the analysis conditions, and the processing conditions; re-analyzing or re-processing the response spectrum based on the attribute information obtained by operating at least one of the vibration system model, the seismic waveform signal, the analysis conditions, and the processing conditions, wherein the method is for evaluating the seismic resistance of a structure.
6. Causing a computer to acquire a vibration system model of a structure and a seismic waveform signal to be input to the vibration system model; set analysis conditions for the vibration system model; analyze the response spectrum of each region of the vibration system model based on the seismic waveform signal and the analysis conditions; select the response spectrum in which at least one of the seismic waveform signal and the analysis conditions is different; set processing conditions for envelope processing and width expansion processing; perform envelope processing on a plurality of selected response spectra; perform width expansion processing on the selected response spectrum; display attribute information combining the vibration system model related to the response spectrum, the seismic waveform signal, the analysis conditions, and the processing conditions; re-analyze or re-process the response spectrum based on the attribute information obtained by operating at least one of the vibration system model, the seismic waveform signal, the analysis conditions, and the processing conditions, wherein the program is for evaluating the seismic resistance of a structure.
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