CN111104706A - High-rise object parameter modeling analysis system and wind load reliability analysis method - Google Patents
High-rise object parameter modeling analysis system and wind load reliability analysis method Download PDFInfo
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Abstract
The embodiment of the application provides a high-rise parameter modeling analysis system and a high-rise wind load reliability analysis method. Wherein the project module includes N project models. The model module comprises N component model groups corresponding to the project models one by one, and the ith component model group comprises L components. The materials library module includes M material properties that define the component materials. The load module comprises X load types, and each load type comprises at least one load parameter for setting the corresponding strength of the load type. The analysis module comprises a Y analysis mode, and can analyze the target project models defined by the model module and the material library module and output results. The parameter modeling analysis system for the towering object, provided by the embodiment of the application, can realize parametric modeling, and improve the analysis efficiency and the analysis accuracy of the towering object.
Description
Technical Field
The invention relates to the field of structure calculation of towering objects, in particular to a towering object parameter modeling analysis system and a wind load reliability analysis method.
Background
High-rise is a building with a large height and a relatively small cross section, so the high-rise structure is also called a tower mast structure, for example: power transmission line towers, oil drilling towers, cooling towers, navigation towers, lighthouses, chimneys and the like. The highest feature of the towering object is that the towering object has a large height, so that the calculation of the wind load intensity of the towering object is particularly important.
Cooling towers, as one of the high rises, also have the characteristics of large height and small cross section. Due to the enlargement of the units of the thermal power plant and the application of the indirect air cooling technology, the cooling tower is high and greatly developed, and the existing cooling tower structure calculation system developed based on the rotating shell theory is not suitable for the structure calculation requirement of the cooling tower exceeding the standard.
Disclosure of Invention
In view of this, embodiments of the present application provide a towering parameter modeling analysis system and a towering wind load reliability analysis method, so as to solve the above problems.
In a first aspect, an embodiment of the present application provides a towering parameter modeling and analyzing system, which includes a project module, a model module, a material library module, a load module, and an analyzing module. The project module comprises N project models, wherein N is a positive integer greater than or equal to 1. The model module comprises N component model groups corresponding to the project models one by one, and the ith component model group in the N component model groups comprises L components, wherein L is a positive integer larger than or equal to 1, and i is larger than or equal to 0 and is smaller than or equal to N. The material library module includes M material properties including at least one material parameter for defining a component material, M being a positive integer greater than or equal to 1. The load module comprises X load types, each load type comprises at least one load parameter used for setting the corresponding strength of the load type, and X is a positive integer greater than or equal to 1. The analysis module comprises a Y analysis mode, and the analysis mode is used for analyzing the target project model according to the load parameters set in the load type and outputting an analysis result; the target item model is composed of s parts in the jth part model group in the N part model groups, and the material of any one part in the s parts is defined by one material attribute; y is a positive integer greater than or equal to 1, s is greater than or equal to 0 and less than or equal to L, and j is greater than or equal to 0 and less than or equal to N.
Preferably, the cooling tower model is included in the N project models.
Optionally, the N component model groups include a cooling tower component model group corresponding to the cooling tower model; the L parts in the cooling tower component model group at least comprise a rigid ring, a tower barrel, a stiffening rib, a bracket ring, an oblique strut, a ring base and a pile base.
Preferably, the at least one material parameter comprises at least one of density, modulus of elasticity, poisson's ratio.
Preferably, the load type includes at least wind load.
Preferably, the Y analysis mode includes at least a static analysis mode.
In a second aspect, the embodiment of the present application provides a method for analyzing wind load reliability of a towering object, which can apply the towering object parameter modeling analysis system provided in the first aspect to perform wind load reliability analysis on an actual towering object model.
Preferably, the method for analyzing the wind load reliability of the towering comprises the following steps: determining a wind pressure value of the position of the towering object; establishing an actual towering object model by utilizing a project module, a model module and a material library module of the towering object parameter modeling analysis system; selecting the load type as a wind load by using a load module of the towering object parameter modeling analysis system, and inputting a wind pressure value under the wind load; and selecting an analysis mode as a static analysis mode by using an analysis module of the towering parameter modeling analysis system, and then carrying out wind-load static analysis on the actual towering model.
Preferably, the output content corresponding to the static analysis mode is selectable.
Optionally, the output content comprises at least one of stress, strain, displacement.
Preferably, the towering is a cooling tower and the towering model is a cooling tower model.
Optionally, the building of the actual towering model by using the project module, the model module and the material library module of the towering parameter modeling analysis system includes: selecting a cooling tower model in the project module; in the model module, according to the actual structure of the cooling tower, selecting needed components from L components in the component model group corresponding to the cooling tower model; and in the material library module, selecting the material attribute corresponding to each part according to the actual material of the cooling tower.
Optionally, the plurality of components includes at least a rigid ring, a tower, a stiffener, a corbel ring, a diagonal brace, a ring base, and a pile base.
Optionally, the material parameter in the material property includes at least one of density, modulus of elasticity, poisson's ratio.
The towering parameter modeling and analyzing system provided by the embodiment of the application comprises a common towering model, and the actual material parameters of corresponding parts and parts in different towering models can be selected in the system, so that parametric modeling can be realized by applying the towering parameter modeling and analyzing system provided by the embodiment of the application, and the analysis efficiency and the analysis accuracy of towering are improved.
Drawings
FIG. 1 is a schematic view of a towering parameter modeling analysis system provided in one embodiment of the present application;
FIG. 2 is a schematic view of a cooling tower parametric modeling analysis system provided in an embodiment of the present application;
FIG. 3 is a flow chart of a towering wind load reliability analysis provided in one embodiment of the present application;
FIG. 4 is a flow chart of a cooling tower modeling provided in an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is further described with reference to the accompanying drawings and examples.
It should be noted that in the following description, specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import to those skilled in the art without departing from the spirit and scope of this application. The present application is therefore not limited to the specific embodiments disclosed below.
Referring to fig. 1, fig. 1 is a schematic view of a high-rise parameter modeling and analyzing system provided in an embodiment of the present application. As shown in fig. 1, the towering parameter modeling and analyzing system provided in the embodiment of the present application includes a project module 01, a model module 02, a material library module 03, a load module 04, and an analyzing module 05. The project module 01, the model module 02 and the material library module 03 are used for constructing a high-rise object model, the load module 04 is used for loading load conditions, and the analysis module 05 is used for carrying out specific analysis.
Specifically, the item module 01 includes N item models 11, and as shown in fig. 1, the N item models 11 include an item model 1 and an item model 2 … …, where N is a positive integer greater than or equal to 1. More specifically, project model 1, project model 2 … … project model N may be a cooling tower model, a navigation tower model, a lighthouse model, a drilling tower model, a power line tower model, or the like. That is to say, the project module of the towering parameter modeling and analyzing system provided in the embodiment of the present application includes a basic model of a common towering, and the user may select the corresponding project model 11 in the project module 01 according to the specific towering type to be modeled and analyzed.
Specifically, the model module 02 includes N component model groups 21, as shown in fig. 1, the N component model groups 21 include a component model group 1, a component model group 2 … … project model N, and the component model groups 21 are in one-to-one correspondence with the project models 11. More specifically, the i-th component model group 21 of the N component model groups includes L components, L being a positive integer of 1 or more, and 0. ltoreq. i.ltoreq.N. As shown in fig. 1, the component model group 1 is described by taking i =1 as an example, and includes a component 1 and a component 2 … …. A plurality of parts in a certain part model group 21 constitute a corresponding project model 11, that is, parts included in a part model group 21 corresponding to a certain project model 11 may constitute the complete project model 11. Taking the example of selecting the project model 1 in the project module 01 as an example, when the project model 1 in the project module 01 is selected, the model module 02 may present the component model group 1 corresponding to the project model 1, and the components in the component model group 1 include all the components constituting the complete project model 1, and some or all of the components may be selected according to the actual towering to determine the basic structural configuration of the towering model.
It should be noted that the component model groups 21 correspond to the project models 11 one to one, which means that when a certain project model 11 is selected, components in the corresponding component model group 21 can be selected. All parts in each part model group 21 can be the same, that is, any part in the part model group 21 is the sum of the parts contained in all project models 11; all the components in each component model group 21 may not be completely the same, that is, each component model group 21 only includes all the components constituting the item model 11 according to the corresponding item model 11; alternatively, the parts in the part model groups corresponding to the partially similar project models 11 may be the same.
It should be further noted that, after at least some of the components in the partial model group 21 are selected according to the actual towering object, inputting the configuration parameters such as the shape, the size, the installation position, and the like of each component in the configuration parameter window corresponding to each component is also included. It should be noted that the structural parameter window corresponding to each component includes an entry for inputting a parameter, and the corresponding parameter may be input under the corresponding entry. That is, although different components have different structures, corresponding entries are already listed in the corresponding structure parameter windows, and corresponding parameters may be input according to the entries. In this way, parametric modeling can be further achieved.
Specifically, the material library module 03 includes M material attributes 31, and as shown in fig. 1, the M material attributes 31 include a material attribute 1 and a material attribute 2 … …, where M is a positive integer greater than or equal to 1. Each material property 31 comprises at least one material parameter defining the material of the component, i.e. the material parameter in a material property defines the material of a component by assigning it a corresponding material property 31 depending on the actual material composition of the component. Taking the example of selecting the project model 1 in the project module 01 as an example, when the project model 1 in the project module 01 is selected, the model module 02 will present the component model group 1 corresponding to the project model 1, and the components 1 and 2 in the selected component model group 1 constitute the basic structure of the target project model 11. According to the correspondence between the specific material of the component 1 and the material parameter value in the material property 1, giving the material property 1 to the component 1; the material property 2 is assigned to the component 2 in dependence on the specific material of the component 2 corresponding to the value of the material parameter in the material property 2. The material parameter values in the material properties 31 are different.
It should be further noted that the project model refers to a model that is basic or includes comprehensive parts in the towering field. The target project model is a model corresponding to the actual towering structure and material, which is formed by selecting a corresponding project model 11 in the project module 01 according to the actual towering structure, selecting a corresponding part 21 in the corresponding part model group 21 in the model module 01, and selecting a corresponding material attribute 31 for each part in the material library module 03 after selecting the part 21.
Specifically, the load module 04 includes X load types 41, as shown in fig. 1, the X load types 41 include a load type 1 and a load type 2 … …, and X is a positive integer greater than or equal to 1. More specifically, the load type 1, the load type 2 … …, the load type X may be wind load, temperature load, seismic load, or the like. That is to say, the load module 04 of the towering parameter modeling and analyzing system provided in the embodiment of the present application includes analyzing the customary load type of the towering, and the user may select the corresponding load type 41 in the load module 04 according to the specific load type of the towering. And each load type 41 has at least one load parameter, which is used to set the strength corresponding to the load type. That is, after a certain load type 41 is selected, a corresponding load parameter setting window appears, and if a wind load is selected, a wind pressure value can be set.
Specifically, the analysis module 05 includes a Y analysis pattern 51, and as shown in fig. 1, the Y analysis pattern 51 includes an analysis pattern 1 and an analysis pattern 2 … …, and Y is a positive integer greater than or equal to 1. More specifically, analysis mode 1, analysis mode 2 … … analysis mode Y may be a static analysis mode, a seismic analysis, a dynamic time course analysis, or the like. That is to say, the analysis module 05 of the towering parameter modeling and analyzing system provided in the embodiment of the present application includes the conventional analysis mode 51 for analyzing towering, and after the user selects the corresponding analysis mode 51 in the analysis module 05 according to the requirement, the towering parameter modeling and analyzing system can perform the corresponding calculation and analysis. The analysis mode 51 is used for analyzing the target project model according to the load parameters set in the load types and outputting an analysis result, wherein the target project model is composed of s parts in the jth part model group in the N part model groups, the material of any one part in the s parts is defined by a material attribute, s is greater than or equal to 0 and less than or equal to L, j is greater than or equal to 0 and less than or equal to N, and i and j may be equal or unequal. It should be noted that the load according to the calculation and analysis in the analysis mode is the load parameter input after the load type is selected, and the target item model analyzed in the analysis mode is a model corresponding to the actual towering structure and material formed through the above steps, that is, selecting the corresponding component 21 in the corresponding component model group 21 after the corresponding item model 11 is selected, and selecting the corresponding material attribute 31 for each component in the material library module 03 after the component 21 is selected.
The towering parameter modeling and analyzing system provided by the embodiment of the application comprises a common towering model, and the actual material parameters of corresponding parts and parts in different towering models can be selected in the system, so that parametric modeling can be realized by applying the towering parameter modeling and analyzing system provided by the embodiment of the application, and the analysis efficiency and the analysis accuracy of towering are improved.
It should be noted that the forming of the target project model includes selecting a part of the components in the corresponding component model group 21 after selecting the project model 11. That is, the parts model group 21 of the towering parameter modeling analysis system provided in the embodiment of the present application may include more comprehensive parts, and some parts may not be needed in the actual modeling process, and thus need not be selected.
In an embodiment of the present application, the N project models 11 include a cooling tower model, please refer to fig. 2, and fig. 2 is a schematic diagram of a cooling tower parameter modeling analysis system provided in an embodiment of the present application. It should be noted that fig. 2 only shows a part of the components of the towering parameter modeling analysis system provided in the embodiment of the present application, which relate to the cooling tower parameter modeling analysis.
As shown in fig. 2, when the cooling tower model is included in the N item models 11, the cooling tower component model group corresponding to the cooling tower model is included in the N component model groups 21. And the cooling tower component model group comprises L relatively comprehensive components which form the conventional cooling tower, such as at least a rigid ring, a tower barrel, a stiffening rib, a bracket ring, an oblique strut, a ring base and a pile base.
Further, the material parameter in the material property includes at least one of density, elastic modulus, poisson's ratio.
With continued reference to fig. 2, when a cooling tower model is selected in the project module 01, the model module 02 displays a cooling tower component model group, and the components, such as the rigid ring, the tower, the corbel ring, the diagonal brace, and the ring base, in the cooling tower component model group can be selected according to actual needs, and after the components are selected, appropriate material properties can be selected for each component in the material library, so as to form an actual cooling tower model. Specifically, the materials of the rigid ring, tower, bull's leg ring, diagonal brace, ring base, and the like are consistent with the material parameter values in material property C45, and thus material property C45 is selected for the tower, bull's leg ring, diagonal brace, ring base, and the like.
Further, the load type includes at least a wind load and the plurality of analysis modes includes at least a static analysis mode. That is, after modeling the cooling tower according to the above steps, the wind load reliability of the cooling tower model can be analyzed by loading the wind pressure value under the wind load type.
It should be noted that the towering parameter modeling and analyzing system provided in the embodiment of the present application may be used for analyzing not only cooling towers, but also towering objects such as power transmission line towers, oil drilling towers, navigation towers, lighthouses, chimneys, high-rise buildings, and the like. That is to say, the project models in the project module of the high-rise parameter modeling analysis system provided in the embodiment of the present application may further include a power transmission line tower project model, an oil drilling tower project model, a navigation tower project model, a lighthouse project model, a chimney project model, a high-rise building project model, and the like; the model module also comprises a power transmission line tower component model group, an oil drilling tower component model group, a navigation tower component model group, a lighthouse component model group, a chimney component model group, a high-rise building component model group and the like correspondingly; the material library module also comprises material attributes for defining the materials of the components in the component model groups; the load module also comprises a load type for carrying out conventional analysis on the load corresponding to the project model; the analysis module also comprises a conventional analysis mode of the project model needing to be analyzed.
In an embodiment of the present application, a method for analyzing wind load reliability of a towering is further provided, where the analysis method applies the towering parameter modeling analysis system provided in any of the above embodiments to perform wind load reliability analysis on an actual towering model.
Referring to fig. 3, fig. 3 is a flow chart of a method for analyzing wind load reliability of a towering object according to an embodiment of the present application, including the following steps:
s01: and determining the wind pressure value of the position of the towering object.
S02: and establishing an actual towering object model by utilizing a project module, a model module and a material library module of the towering object parameter modeling analysis system.
S03: and selecting a load model as a wind load by using a load module of the towering object parameter modeling analysis system, and inputting a wind pressure value under the wind load.
S04: and selecting an analysis mode as a static analysis by using an analysis module of the towering parameter modeling analysis system, and then carrying out a wind-load static analysis mode on the actual towering model.
Specifically, in step S01, the method for determining the wind pressure value at the position of the towering object may be to calculate the wind pressure value according to a calculation formula between the wind speed and the wind pressure:
ω=1/2×ρ×v2
wherein, ω is wind pressure, ρ is air density, and v is wind speed.
Specifically, in step S04, the output content corresponding to the static force analysis mode is selectable, for example, the output content may include at least one of stress, strain, and displacement. And when the static analysis mode is selected, a grid encryption region can be selected, so that finite element meshing is carried out on the grid encryption region, and the type of the grid can be hexahedral grid.
The analysis efficiency and the analysis accuracy of the towering object can be improved by carrying out parametric modeling and selecting a load and an analysis mode in a parametric mode.
In one embodiment of the present application, the towering is a cooling tower and the towering model is a cooling tower model. The method for analyzing the wind load reliability of the towering provided in the embodiment of the present application may specifically be a method for analyzing the wind load reliability of a cooling tower.
When the method for analyzing the wind load reliability of the towering object provided in the embodiment of the present application is specifically a method for analyzing the wind load reliability of a cooling tower, please refer to fig. 4, where fig. 4 is a flow chart of a modeling process of the cooling tower provided in an embodiment of the present application, and an actual towering object model is established by using a project module, a model module and a material library module of a parameter modeling analysis system of the towering object, which specifically includes the following steps:
s21: in the project module, a cooling tower model is selected.
S22: in the model module, a necessary component is selected from the L components of the component model group corresponding to the cooling tower model, in accordance with the actual structure of the cooling tower.
S23: in the material library module, material properties corresponding to each required component are selected according to the actual material of the cooling tower.
Specifically, in step S22, the L components in the component model group corresponding to the cooling tower model at least include a rigid ring, a tower, a stiffener, a corbel ring, a diagonal strut, a ring base, a pile base, and the like, and some of the components may be selected according to actual needs, such as the rigid ring, the tower, the corbel ring, the diagonal strut, and the ring base.
Specifically, in step S22, after selecting a desired component from the plurality of components in the component model group corresponding to the cooling tower model, the method further includes inputting the configuration parameters such as the shape, size, and mounting position of each component in the configuration parameter window corresponding to each component. It should be noted that the structural parameter window corresponding to each component includes an entry for inputting a parameter, and the corresponding parameter may be input under the corresponding entry. That is, although different components have different structures, corresponding entries are already listed in the corresponding structure parameter windows, and corresponding parameters may be input according to the entries. For example, the structure of the diagonal brace comprises shape features, shape items exist in a structural parameter window corresponding to the diagonal brace, and the specific shape of the diagonal brace can be selected by the pull-down input box, such as a 'human' shape, a 'V' shape, an 'X' shape, an 'I' shape and the like.
Specifically, the material parameter in the material property includes at least one of density, elastic modulus, and poisson's ratio.
More specifically, in step S23, the rigid ring, tower, corbel ring, diagonal brace, ring base and pile foundation are fabricated from concrete having a density of 2500kg/m3, a modulus of elasticity of 33.5GPa, and a poisson' S ratio of 0.2, which substantially corresponds to the material parameter values in material property C45, such that material property C45 may be selected for the tower, corbel ring, diagonal brace, ring base and pile foundation.
The cooling tower is subjected to parametric modeling and parametric load selection and analysis mode, so that the analysis efficiency and the analysis accuracy of the cooling tower can be improved.
The foregoing is a more detailed description of the present application in connection with specific preferred embodiments and it is not intended that the present application be limited to these specific details. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (9)
1. A high-rise parameter modeling and analyzing system is characterized by comprising a project module, a model module, a material library module, a load module and an analyzing module; wherein the content of the first and second substances,
the project module comprises N project models, wherein N is a positive integer greater than or equal to 1;
the model module comprises N component model groups, and the component model groups correspond to the project models one to one; an ith component model group of the N component model groups comprises L components; wherein L is a positive integer greater than or equal to 1, and i is greater than or equal to 0 and less than or equal to N;
the materials library module comprises M material attributes; each of the material properties comprises at least one material parameter defining a material of the component; m is a positive integer greater than or equal to 1;
the load module comprises X load types; each load type comprises at least one load parameter, and the load parameters are used for setting the strength corresponding to the load type; x is a positive integer greater than or equal to 1;
the analysis module comprises a Y analysis mode; the analysis mode is used for analyzing the target project model according to the load parameters set in the load type and outputting an analysis result; wherein the target item model is composed of s parts of a jth part model group of the N part model groups, and a material of any one of the s parts is defined by one material property; y is a positive integer greater than or equal to 1, s is greater than or equal to 0 and less than or equal to L, and j is greater than or equal to 0 and less than or equal to N.
2. The towering parameter modeling analysis system of claim 1 wherein said N project models include a cooling tower model;
the N component model groups comprise cooling tower component model groups corresponding to the cooling tower models;
and the L parts in the cooling tower part model group at least comprise a rigid ring, a tower barrel, a stiffening rib, a cow leg ring, an oblique strut, a ring base and a pile base.
3. The towering parameter modeling analysis system of claim 1 wherein said at least one material parameter comprises at least one of density, modulus of elasticity, poisson's ratio.
4. The towering parameter modeling analysis system of claim 1 wherein said load types include at least wind load.
5. The towering parameter modeling analysis system of claim 1 wherein said Y analysis modes include at least a static analysis mode.
6. A method for analyzing wind load reliability of a towering object is characterized in that the towering object parameter modeling analysis system of any one of claims 1-6 is applied to carry out wind load reliability analysis on an actual towering object model.
7. The method for analyzing wind load reliability of towering of claim 6, comprising:
determining a wind pressure value of the position of the towering object;
establishing an actual towering model by utilizing a project module, a model module and a material library module of the towering parameter modeling analysis system;
selecting the load type as a wind load by using a load module of the high-rise parameter modeling analysis system, and inputting the wind pressure value under the wind load;
and selecting an analysis mode as a static analysis mode by using an analysis module of the towering parameter modeling analysis system, and then carrying out wind-load static analysis on the actual towering model.
8. The method for analyzing wind load reliability of towering of claim 7, wherein an output content corresponding to the static force analysis mode is selectable.
9. The method for analyzing wind load reliability of towering of claim 7, wherein the towering is a cooling tower and the towering model is a cooling tower model; the method for establishing the actual towering model by utilizing the project module, the model module and the material library module of the towering parameter modeling analysis system comprises the following steps of:
selecting a cooling tower model in the project module;
in the model module, according to the actual structure of the cooling tower, selecting the needed components from L components in a component model group corresponding to the cooling tower model;
and in the material library module, selecting the material attribute corresponding to each required component according to the actual material of the cooling tower.
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