KR102309071B1 - Earthquake damage prediction and visualization simulation system of environmental facilities - Google Patents

Abstract

The present invention performs a static analysis (response displacement method) and a dynamic analysis (time history analysis method) in parallel considering a fluid-structure interaction per structure type such as a management building, a water reservoir, a water tank, a pipeline, and the like, and relates to a seismic evaluation through a calculation of a load carrying capacity and an analysis result visualization system using the result thereof. The present invention relates to a system for predicting an earthquake damage and simulating visualization of an environmental facility comprising: a modeling part (110) that generates a model by using an external file and a template and the like; a user interface part (120) that sets the structure information such as the attribute information of the structure to be analyzed, the load information section, and the like; a database part (200) wherein the input information of the modeling part and the user interface part is stored; a modeling data visualization part (300) that outputs modeling data as a three-dimensional mesh screen on a computer screen based on the data inputted from the modeling part and the user interface part stored in the database part (200); a structural analysis input file generating part (500) that generates a structural analysis input file using a result displayed in the modeling data visualization part (300) and provides the result thereof to a structural analysis performing part (510); the structural analysis performing part (510) capable of finally generating a fluid-ground-structure interaction analysis result file (520) using the structural analysis input file generated by the structural analysis input file generating part (500); and a load carrying capacity setting interface part (130) that inputs the property of the material, the cross-sectional data, and the material coefficient. Therefore, the present invention is capable of having an effect of being generated conveniently.

Description

Earthquake damage prediction and visualization simulation system of environmental facilities

The present invention utilizes earthquake damage prediction and simulation technology that considers the fluid-ground-structure interaction of environmental facilities such as water purification plants, wastewater treatment plants, and water and sewage facilities to reduce the probability of occurrence of disaster damage through damage prediction and prevention activities for each disaster scenario. It relates to an earthquake damage prediction and visualization simulation system for environmental facilities that can be used.

In Korea, as the frequency of earthquakes increases, the damage is realised. Although the recent earthquakes in Gyeongju and Pohang were smaller than the designed earthquakes, environmental facilities such as three water purification plants, two sewage treatment plants, and a number of water pipes ( It is true that the environmental facilities) were damaged and a huge amount of restoration cost was consumed.

Accordingly, seismic design, performance evaluation, and seismic reinforcement for overall environmental facilities including water and sewage facilities are urgently required. In the process of evaluating earthquakes, tools and guidelines are needed to apply standardized evaluation methods in consideration of regional characteristics of earthquakes.

In particular, the reality is that most of the environmental facilities including water purification plants, wastewater treatment plants, and water and sewage facilities do not have seismic design at all or there is no method to certify performance of seismic design.

In addition, since the analysis of structures during an earthquake differs depending on the surrounding conditions where the structures are located, structures placed on rigid ground are analyzed in the form of applying seismic loads from the bottom, but structures placed on flexible ground are ground-structures considering the influence of the ground. Interaction analysis is possible, and structures containing fluids require fluid-structure interaction analysis.

At this time, for a facility in which a structure containing a fluid is buried in the ground, such as a water tank structure of a water purification plant or a sewage treatment plant, and an LNG storage tank, the ground-structure interaction and the fluid-structure interaction must be considered at the same time. interaction should be considered.

However, at present, in the case of environmental facilities including RC structures such as water purification plants, wastewater treatment plants, and water and sewage facilities, there is no system that can perform seismic performance evaluation and weak point analysis considering the fluid-ground-structure interaction.

Accordingly, there is a need for a system that helps in rational budgeting decision making by quantifying and standardizing earthquake damage by region, earthquake type, and facility in consideration of the fluid-ground-structure interaction.

Patent Publication No. 10-2019-0028161 (2019.03.18.) Laid-Open Patent Publication No. 10-2008-0051326 (2008.06.11.)

The present invention is a system for designing or evaluating seismic performance based on an arbitrary seismic load applied to an environmental facility such as a water purification plant or a wastewater treatment plant including a water tank containing a fluid, and the response thereof is analyzed based on this. The purpose of seismic analysis considering the action.

In addition, by numerically simulating the disaster results of earthquake damage taking into account the fluid-ground-structure interaction according to the type of each structure, including the management building, water tank, water tank, and pipeline of environmental facilities such as water purification plants and wastewater treatment plants, the type of disaster and The purpose is to predict damage by disaster scenario according to the type of structure by developing a simulation that can predict damage.

In addition, based on the results of these simulations, the purpose is to improve the disaster response capabilities of operators and workers by utilizing virtual disaster safety education support and programs of environmental facilities, and to provide guidelines for evaluation of earthquake damage.

The system of the present invention performs seismic response analysis in consideration of fluid-ground-structure interaction for each type of environmental facility including management building, water tank, water tank, and pipeline, and uses the result to evaluate seismic resistance through calculation of load carrying capacity and analysis result It is related to the earthquake damage prediction and visualization simulation system of environmental facilities.

To this end, preferably, the modeling unit 110 for generating a model by using an external file and template; and a user interface unit 120 for setting structure information such as property information of the structure to be analyzed and the load information section; and a database unit 200 for storing input information of the modeling unit and the user interface unit, and the database unit may determine whether to store information input from the load-bearing force setting interface unit 130 by a user's selection.

A modeling data visualization unit 300 for outputting modeling data as a three-dimensional mesh screen on a computer screen based on data input from the modeling unit and the user interface unit stored in the database unit 200); and a modeling data visualization unit 300 The structural analysis input file generated by the structural analysis input file generating unit 500 is generated using the results displayed in It can be finally created, and the fluid-ground-structure interaction analysis result file 520 created by the structural analysis performing unit 510 displays the analysis results such as stress, displacement, speed, and acceleration through the explanation result visualization unit 530 . It may be output as , and according to the user's selection, it is provided to the seismic performance evaluation performing unit 400 and compared with the load-bearing information provided by the load-bearing force setting interface unit 130, and the result may be output to the performance evaluation result output unit 410. have.

Preferably, a load-bearing force setting interface unit 130 for inputting material properties, cross-sectional data, and material coefficient is provided, and the data input from the load-bearing force setting interface unit 130 is stored in the database 200 by the user's selection. It may provide information to the seismic performance evaluation performing unit 400, but it is provided directly to the seismic performance evaluation performing unit 400 without going through the database 200, so that the fluid-ground-structure interaction analysis result file 520 and It may be configured to compare the load carrying capacity and the applied load together and output the result to the performance evaluation result output unit 410 .

The present invention provides a system for predicting earthquake damage of environmental facilities and analyzing earthquake damage vulnerable points by evaluating the earthquake damage for each component of the environmental facilities, the system comprising: a modeling unit (110); and a user interface unit 120; Load-bearing force setting interface unit 130; database unit 200; modeling data visualization unit 300; Seismic performance evaluation performing unit 400; Performance evaluation result output unit 410; Structural analysis input file generation unit 500; Structural analysis performing unit 510; An analysis result visualization unit 530; provides an earthquake damage prediction and visualization simulation system for environmental facilities having.

The modeling unit 110 of the present invention creates a model by using an external file and a template, and sets the structure information including the attribute information of the structure to be analyzed by the user interface unit 120 and the structure information including the load information cross-section information, the database It is characterized in that it is stored in the unit 200, and the modeling data is output as a three-dimensional mesh screen on the computer screen by the modeling data visualization unit 300 based on the data input from the stored modeling unit and the user interface unit.

The modeling data output by the modeling data visualization unit 300 of the present invention is transmitted to the structural analysis input file generating unit 500 to generate a structural analysis input file, and the generated structural analysis input file is transmitted to the structural analysis performing unit 510 . ) in the fluid-ground-structure interaction analysis result file 520 is characterized in that it is finally generated.

The present invention provides an analysis result visualization unit 530 that visualizes and outputs the results of stress, displacement, deformation, and sectional force according to the fluid-ground-structure interaction analysis result file 520 finally generated by the structural analysis performing unit 510 . It is characterized in that it further comprises.

The fluid-ground-structure interaction analysis result file 520 finally generated by the structural analysis performing unit 510 of the present invention is data directly input from the load-bearing force setting interface unit 130 or the database 200 by the user's selection. It is characterized in that it further comprises a seismic performance evaluation performing unit 400 that compares the applied load together with the load-bearing data stored in the environment facility and evaluates the earthquake damage for each component of the environmental facility and analyzes the vulnerable point of the earthquake damage.

The system that visualizes the results of simulation for predicting earthquake damage of environmental facilities includes a modeling unit that creates a model using external files and templates, a user interface unit that sets attribute information of the structure to be analyzed, load information section, etc.; It has the effect of easily and conveniently generating the simulation preprocessing process of the load-bearing force setting interface for inputting material properties, cross-sectional data, and material coefficients.

A modeling data visualization unit that outputs modeling data that provides a graphic-based user interface technology for the pre-processing process in 3D on a computer screen and an analysis result visualization unit that visualizes analysis results with 3D computer graphic technology are provided to generate an input file It has the effect of being able to easily and conveniently generate results and final analysis results.

1 is a view for explaining an earthquake damage prediction and visualization simulation system of environmental facilities according to an embodiment of the present invention.
2 is a view for explaining a method of setting a node group in a user interface unit;
3 is a view for explaining a screen on which a list of element groups is output in the configuration of setting element groups in the user interface unit;
4 is a view for explaining a screen for setting a list of element groups in the configuration for setting element groups in the user interface unit;
5 is a diagram for explaining a program screen in a 3D form that is visualized and expressed in an analysis result visualization unit;
6 is a view for explaining a program screen for confirming a desired analysis result through a GUI in order to confirm a screen output result in an analysis result visualization unit;
7 is a view for explaining a program screen in which the analysis result can be checked as an isometry through the menu of the visualization screen in the analysis result visualization unit.
8 and 9 are diagrams for explaining a program screen capable of expressing an average value according to a user setting at a portion where two or more different elements meet in the analysis result visualization unit [Avg. Disabling Scalar On Nodes (Fig. 8), Avg. Activate Scalar On Nodes (Fig. 9)].
10 and 11 are diagrams for explaining a program screen that can visualize analysis results through model shape deformation in the analysis result visualization unit [Auto Deformed Scale (FIG. 10), Manual Deformed Scale (2500) (FIG. 11)]

1 is a view for explaining an earthquake damage prediction and visualization simulation system of environmental facilities such as a water purification plant according to the present invention, focusing on the parts necessary to understand the operation and operation according to the present invention.

First, the earthquake damage prediction and visualization simulation system for environmental facilities such as water purification plants according to an embodiment of the present invention includes a modeling unit 110, a user interface unit 120, a modeling data visualization unit 300, and a pre-processing process to perform a preprocessing process. It is configured to include a structural analysis input file generating unit 500 and load-bearing force setting interface unit 130 .

At this time, the earthquake damage prediction and visualization simulation system of environmental facilities such as a water purification plant according to an embodiment of the present invention includes a database unit 200 for storing information input through a pre-processing process.

Here, the earthquake damage prediction and visualization simulation system of environmental facilities such as water purification plants according to an embodiment of the present invention performs a post-processing process based on the result generated through the pre-processing process, the seismic performance evaluation performing unit 400 and a structural analysis performing unit 510 .

In order to visualize the results of the post-processing process, it is configured to include a performance evaluation result output unit 410 and an analysis result visualization unit 530 .

More specifically, the modeling unit 110 generates a model by using an external lattice converter, a lattice generator, and a structure template, and either converts external lattice data (ABAQUS) to geometry or converts a geometric model through a simple user input. Alternatively, when a template-based geometry model is created, the RC structure or H-BEAM, template selection and specifications may be set in connection with data input from the user interface unit 120 .

The user interface unit 120 performs a function of setting structure information including attribute information, load information, and cross-sectional information of the structure to be analyzed.

The user interface unit 120 may preferably include a configuration for setting a node group and a configuration for setting an element group.

A node is the minimum unit constituting a model, and has a unique ID and X, Y, Z coordinates in a number format of 1 or more. Provides functions to create, delete, and modify node groups based on existing functions and nodes included in the model.

FIG. 2 shows a screen on which information about a node group is output at the bottom of the screen by selecting a name of a node group to be set from the tree menu of the system user interface unit 120 of the present invention.

When selecting the name of the node group to set, the name of the node group can be changed in the property window, and addition and deletion of affiliated nodes can be performed by expanding the InnerList item, and the user outputs when analyzing in the analysis step item Items to be assigned can be specified in a node group unit, and the analysis result of the node unit supported by this program can output items including applied load, equivalent load, elastic force, damping force, inertia force, displacement, speed, acceleration, and mode.

Since the configuration of setting the element group in the user interface unit 120 differs in the number and shape of nodes required to configure the element according to the element type, the element types supported by the system of the present invention are shown in Table 1 below, As a result, the type of section that can be assigned is determined.

element type Explanation Assignable Section Types B2D2H 2D 2-Node Bernoulli Beam Element Elastic Beam Section
Meshed Beam Section B3D2H 3D 2-Node Bernoulli Beam Element Elastic Beam Section
Meshed Beam Section B2D2MH two-dimensional two-node thymosenkovo element Elastic Beam Section B3D2MH three-dimensional two-node thymosenkovo element Elastic Beam Section Truss truss element Elastic Beam Section
Meshed Beam Section S3F 3-node plate element Shell Section S4F 4-node plate element Shell Section S3 3-node shell element Shell Section S4 4-node shell element Shell Section CPE3 Planar deformation 3-node element Solid 2D Section CPS3 Planar stress 3-node element Solid 2D Section CAX3 Axisymmetric 3-node element Solid 2D Section CPE4 Planar deformation 4-node element Solid 2D Section CPS4 Plane stress 4-node element Solid 2D Section CAX4 Axisymmetric 4-node element Solid 2D Section C3D8 3D 8-node element Solid 3D Section AC2D3 Two-dimensional three-node pressure field analysis element Solid 2D Section AC2D4 Two-dimensional 4-node pressure field analysis element Solid 2D Section AC3D8 3D 8-node pressure field analysis element Solid 3D Section Spring 2-node spring/damper element MCK Section EarthSpring 1-node spring/damper element MCK Section PointMass 1 node concentrated mass MCK Section

It provides the function to apply the same financial information by grouping the elements included in the model, and provides the function to create, delete, and modify element groups based on the elements included in the model.

As shown in FIG. 3 , when ElementSets is selected from the tree menu of the user interface unit 120, a list of all element groups included in the corresponding model is displayed at the bottom of the screen.

As shown in Fig. 4, when the name of the element group to be set is selected here, information on the element group is output at the bottom of the screen.

The name of the element group can be changed in the property window, and addition and deletion of belonging elements can be performed by expanding the InnerList item. You can check the section type that exists.

However, you cannot change the element ID and element type for an existing element, and you can select an element to be included among elements in the existing model through the Add button. If there is no element required in the existing model, a new element can be registered in the model through the Add element button.

In principle, the element group includes elements of the same type, but according to the needs of the user, element groups including elements of different types can be created.

When expressing the analysis result, the element group unit includes element strength, strain, strain rate, acceleration, cross-sectional strength, cross-sectional deformation, stress, strain, and plastic strain, but the display item can be specified by the user.

The user interface unit 120 may perform a function of setting a load, a cross-section, a material, a function, and an analysis step.

The load set in the user interface unit 120 means all forces applied in units of nodes or elements, and in the system according to the present invention, load types such as seismic force and self weight are used, including boundary conditions, concentrated load, and distributed load. possible.

The user interface unit 120 provides a function of creating, deleting, and modifying a load acting on the model. In this case, the load can be applied to an element or node, and it is also possible to set a group unit target. Of course, it can be disabled when setting the analysis step

The types of loads that can be supported by the system of the present invention are shown in Table 2 below.

Support load list Concentric Define the concentrated load applied to the node. Enter the unique ID of the node to which the load is to be applied or the node group, the degree of freedom, and the magnitude of the applied force. If necessary, it is possible to set the time function to be used for performing time-dependent analysis. Support Define fixed boundary conditions. Enter the unique ID or node group and degree of freedom of the node to which the load is to be applied. Displacement Specify a displacement load with a non-zero value. Enter the unique ID or node group, degree of freedom, and displacement size of the node to which the load is to be applied. Displacement function, velocity function, and acceleration time function to be used for performing time-dependent analysis can be set if necessary. Earthquake Designate earthquake acceleration history as load. Enter the direction vector of the acceleration history. Seismic acceleration history is set as a function. Gravity self-definition. Set the unique ID of the element to reflect the weight or the element group and the direction vector of the weight. If necessary, set the time function to be used for performing time-dependent analysis. Temperature Used when the element is subjected to the same temperature change. Enter the unique ID or element group of the element to reflect the change in temperature, the temperature to be reflected, and the amount of change. If necessary, set the time function to use to perform time-dependent analysis. Line Distributed Define a distributed load acting on a line composed of beam elements or truss elements. Separate setting for the coordinate system of the load is required. Set the element to which distributed load is applied, or a set of elements consisting only of beam elements or truss elements, and the magnitude and direction of the load. If necessary, set the time function to be used for performing time-dependent analysis. Surface Distributed Defines a distributed load acting on a face consisting of the face of an element. The type of load must be set by dividing it into pressure and surface force, and the plane to which the load is to be applied is designated. If necessary, set the time function to use to perform time-dependent analysis. Acoustic Impedance Define boundary loads for special elements. Enter the surface and impedance coefficient to be applied as a load to reflect the interaction between elements with different properties. Acoustic Solid Interface Define boundary loads for 3D solid elements. Enter the surface and density to be applied as a load to reflect the interaction between elements with different properties.

The user interface unit 120 may set cross-section information, and may create, delete, or modify settings for a cross-section of an element, and may perform a function of assigning a corresponding cross-section to an element.

The system according to the present invention can support the cross-sectional types shown in Table 3 below.

Support section list Elastic Beam Define a linear elastic beam section. Define by selecting one of rectangular section, circular section, flange section, and cross section input according to the section type. When entering the cross-sectional area, directly input the width of the cross-sectional area. For rectangular sections, enter the width and height. For a circular section, enter the outer and inner diameters. For Flange, enter width, height, thickness, etc. to define it. For cross-section beams, interpolation is applied to calculate. Meshed Beam Define the discretized beam section. Apply split section. Requires splitting point and section detail definition for each split face. Shell Shell element section definition. Enter the cross-section material, the thickness of the section, and the section correction value. Solid Solid element section definition. Section construction material, specifying the thickness of the section. MCK Section definitions for Spring elements, EarthSpring elements, and PointMass elements. Define by selecting the type of section to be defined from among Spring, Damper, and Mass. Declare the degree of freedom to be applied and enter the spring coefficient and model for that degree of freedom.

The user interface unit 120 may perform a function of creating, deleting, or modifying a material to be assigned to an element.

In the material setting in the user interface unit 120, the name, density, and elastic modulus of the material can be set in common, and additional settings can be made according to the properties of each material. In the system according to the present invention, at least the type of material in Table 4 can be set to provide

List of supporting materials IsoElasticity Definition of isotropic elastic materials. Enter the material's modulus of elasticity, Poisson's ratio, coefficient of thermal expansion, and density. UConcrete Plastic concrete material definition. Enter coefficients and functions for coefficient of thermal expansion, density, compressive and tensile strength. US steel Definition of uniaxial steel material. Enter required factors such as yield strength, hardening coefficient, and thermal expansion coefficient. GapHook One-axis gap-hook material definition. Acoustic Material definitions for common solid elements. Enter the bulk modulus and density.

In the user interface unit 120, a user can directly set a function, and the function-related command defines a function of the form y=f(x). Functions are used as time histories when defining envelopes or loads when defining materials.

The system according to the present invention may be configured to select at least the types of functions shown in Table 5 below.

List of supported functions MultiLinear A list of numbers in x,y pairs. Used when there are no specific rules or when the available x values are limited. String Write function expressions in text format. Declare an expression that can be used within a certain range by specifying the maximum and minimum values of x. HognestadCEnv Define Hognestad's formula for concrete loading curve. Define the concrete loading curve by inputting factors necessary for defining the loading curve, such as compressive strength and limit strength. ParabolaCEnv Define the stress-strain loading curve for the section design defined in EC2 and KDS. Define the stress-strain loading curve by inputting the design compressive strength and shape factor. FIBCEnv Define the concrete loading curve of CEB/FIB MC90. MPPCEnv Define the concrete loading curves of Mander, Priestly, and Park. MPPCIE Mander, Priestly, and Park's definition of inelastic strain in concrete. MaekawaTEnv Define Maekawa's concrete tensile strength curve.

In the user interface unit 120, the user can set the analysis step, and the analysis step is defined as an output item, target element, analysis method, etc. based on the input model. In the system according to the present invention, static analysis, dynamic analysis, It is configured to support frequency analysis.

In the analysis step setting in the user interface unit 120, elements and loads belonging to the model to be analyzed can be activated or deactivated at each analysis step, and through this, the effects of different loads on specific elements can be compared and analyzed. can do.

At this time, the item to be output to the database (DB) file, which is the analysis result file, and its period are specified, the output interval is defined by inputting the range and increment, and the output items are output items in node units and output items in element units. divided, and the node unit output item outputs each value for all nodes included in the model, and the element unit output item outputs the analysis value for the currently active element.

The output items of the node unit supported in the analysis step setting step of the user interface unit 120 include applied load, equivalent load, elastic force, damping force, inertial force, displacement, speed, acceleration, and mode, and supported by the system according to the present invention. The output items of element unit include element proof force, strain, strain rate, acceleration, cross-sectional strength, cross-sectional deformation, stress, strain, and plastic strain.

The database unit 200 stores input information of the modeling unit and the user interface unit.

In addition, the database unit may determine whether to store only information input by the load-bearing force setting interface unit 130 to be described later by the user's selection.

The modeling data visualization unit 300 may visualize and output modeling data as mesh grid 3D graphics or multi-structure modeling on a computer screen based on data input from the modeling unit and the user interface unit stored in the database unit 200 . .

The structural analysis input file generating unit 500 generates a structural analysis input file (INP file) using the result displayed by the modeling data visualization unit 300 , and provides the result to the structural analysis performing unit 510 .

The structural analysis performing unit 510 may finally generate a fluid-ground-structure interaction analysis result file 520 using the structural analysis input file generated by the structural analysis input file generating unit 500 .

The fluid-ground-structure interaction analysis result file 520 created by the structural analysis performing unit 510 may output stress, displacement, and deformation results on the screen through the analysis result visualization unit 530, but the user's selection Accordingly, it may be provided to the seismic performance evaluation performing unit 400 and compared with the load bearing capacity information provided from the load bearing capacity setting interface unit, and the result may be output to the performance evaluation result output unit 410 .

In the analysis result visualization unit 530, when an input file or an output file is called into a program, the node and element data of the file can be visualized and expressed on the screen. and simple interactions such as zooming and rotating are possible through the mouse or keyboard.

In addition, the screen of the analysis result visualization unit 530 may include a user-friendly function provided in the form of a button as shown in Table 6 below.

List of supported features Tree Menu Check Box You can change whether the element group is visualized or not. If you want to hide a part of the model, clear the check mark in front of the name of the element group. Surface Visualize the imported model in the form of faces. WireFrame Only the boundary of the imported model is visualized. Contour If the imported model has analysis results, select whether to display the color of the equilateral surface. Deform If the imported model has analysis results, it is selected whether or not to display the model by changing the shape of the model according to the result value. Shrink If there is a continuous element, the element size can be reduced by a certain ratio and the boundary of each element can be identified separately. Parallel You can change whether or not to apply perspective on the screen. Load The load properties registered in the current model are expressed as arrows on the model. The size and color of the arrow indicate the direction and magnitude of the force. To set a load not to be displayed on the screen, clear the selection mark in front of the load name in the Load item of the tree menu. ECS It is an abbreviation of Element Coordinate System and is displayed when an element has its own coordinate system. Section View Displays the section assigned to the element. It works for shell type and beam type among the sections supported by the program. Node Label The unique ID of the node is displayed on the model. Element Label Display the element's unique ID on the model. Opacity Adjust the transparency of the model to check overlapping elements or elements contained within.

As shown in FIG. 6 , the analysis result visualization unit 530 may check the desired analysis result through a graphic user interface (GUI) for confirming the screen output result.

As shown in FIG. 7 , the analysis result visualization unit 530 can check the analysis result as an equilateral plane through the menu of the visualization screen, and when the equilateral plane expression is activated, the legend is displayed on the visualization screen.

The range of expression and the number of colors can be set in the Contour item of the graphical user interface (GUI). When first executed, the range is automatically set to include all analysis results, and the number of colors is set to 9.

As shown in FIGS. 8 and 9 , a portion where two or more different elements meet may display an average value according to user settings, or may be displayed separately at the boundary of the elements.

As shown in FIGS. 10 and 11 , the analysis result visualization unit 530 may visualize the analysis result through model shape deformation. can

At this time, since both the direction and size of the result value are required for shape transformation, the result value that can be reflected in the model is the value selected in the Vector Field of the Field item in the graphic user interface (GUI) of the screen. Limited.

The scale applied when the shape transformation is activated is a value in consideration of the overall size of the model, and this scale value is configured to be set through Deform of the Scale item in the graphic user interface (GUI) of the screen.

In the structural analysis performing unit 510 , the finally generated fluid-ground-structure interaction analysis result file 520 may be provided to the seismic performance evaluation unit 400 .

At this time, the user directly inputs the material properties and cross-sectional data, the material coefficient, the applied load, the material coefficient reduction ratio according to the age, etc. through the load-bearing force setting interface unit 130, or the When the input information is retrieved and provided to the seismic performance evaluation execution unit 400, the seismic performance evaluation execution unit 400 compares the load carrying capacity and the applied load together with the fluid-ground-structure interaction analysis result file 520 in the existing environment It is possible to evaluate the seismic performance of the facility and express the analysis result as a 2D or 3D FEM model to the performance evaluation result output unit 410.

As a result of the performance of the structural analysis performing unit 510, earthquake damage can be predicted in consideration of the fluid-ground-structure interaction for each component of the environmental facility, and the seismic performance evaluation performing unit 400 is the result of the structural analysis performing unit 510 Using , it is possible to evaluate earthquake damage by components of environmental facilities and analyze vulnerable points for earthquake damage, and output seismic performance evaluation guidelines and cases for each component of environmental facilities such as water purification plants and sewage treatment plants on a screen or report. will be

110: modeling unit 120: user interface unit
130: load-bearing force setting interface unit 200: database unit
300: modeling data visualization unit 400: seismic performance evaluation execution unit
410: performance evaluation result output unit 500: structural analysis input file generation unit
510: Structural analysis execution unit
520: fluid-ground-structure interaction analysis result file
530: analysis result visualization part

Claims (5)

In a system for predicting earthquake damage of environmental facilities and analyzing earthquake damage vulnerable points by evaluating earthquake damage for each component of environmental facilities,
modeling unit 110; and a user interface unit 120; Load-bearing force setting interface unit 130; and
Database unit 200; and modeling data visualization unit 300; and
Seismic performance evaluation performing unit 400; Performance evaluation result output unit 410; and
Structural analysis input file generation unit 500; Structural analysis performing unit 510; and an analysis result visualization unit 530;
The modeling unit 110 generates a model by using an external file and a template,
The user interface unit 120 sets attribute information, load information, and cross-section information of environmental facilities, and stores it in the database unit 200,
Based on the data input from the stored modeling unit 110 and the user interface unit 120, the modeling data visualization unit 300 outputs the modeling data to the computer screen as a three-dimensional mesh screen,
The modeling data output by the modeling data visualization unit 300 is transmitted to the structural analysis input file generating unit 500 to generate a structural analysis input file,
The generated structural analysis input file is finally generated as a fluid-ground-structure interaction analysis result file 520 by the structural analysis performing unit 510. An earthquake damage prediction and visualization simulation system for environmental facilities.
delete delete The method according to claim 1,
Further comprising an analysis result visualization unit 530 that visualizes and outputs the results of stress, displacement, deformation, and sectional force according to the fluid-ground-structure interaction analysis result file 520 finally generated by the structural analysis performing unit 510 Earthquake damage prediction and visualization simulation system for environmental facilities, characterized in that.
The method according to claim 1,
The fluid-ground-structure interaction analysis result file 520 finally generated by the structural analysis performing unit 510 is the load-bearing force stored in the database 200 by data directly input from the load-bearing force setting interface unit 130 or by the user's selection. Seismic damage prediction and visualization of environmental facilities, characterized in that it further comprises a seismic performance evaluation performing unit 400 that compares the applied load with the data to evaluate the earthquake damage for each component of the environmental facility and analyze the earthquake damage vulnerable points simulation system.

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