CN111159797A - BIM-based general modeling method for mechanical model - Google Patents
BIM-based general modeling method for mechanical model Download PDFInfo
- Publication number
- CN111159797A CN111159797A CN201911239925.0A CN201911239925A CN111159797A CN 111159797 A CN111159797 A CN 111159797A CN 201911239925 A CN201911239925 A CN 201911239925A CN 111159797 A CN111159797 A CN 111159797A
- Authority
- CN
- China
- Prior art keywords
- family
- component
- library
- load
- finite element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a general modeling method of a mechanical model based on BIM, which comprises the following steps: step one, establishing a standard library which can be used for converting a BIM model into a mechanical finite element model; and step two, establishing an initialized mechanical finite element model on the basis of the standard library. The standard library comprises a standardized component family library and a simulated component family library, the component properties of the standardized component family library comprise variable parameters, invariable parameters, finite element modeling instruction codes and dead load, and the simulated component family library comprises an additional constant load family, a live load family and a boundary condition family. Forming a BIM model and finite element modeling instruction codes and dead load of the components based on a standardized component family library; and based on the simulation component family library, additional constant load, live load and boundary conditions are given to the BIM model. The method solves the problem of conversion from the BIM model to the mechanical model, and can improve the efficiency and the precision of establishment and optimization of the mechanical finite element model.
Description
Technical Field
The invention relates to a general modeling method of a mechanical model based on BIM, belonging to the technical field of BIM technical informatization construction.
Background
The BIM technology refers to a building informatization model technology and has two key factors: and modeling and informatization. The model refers to a three-dimensional space model, and the informatization refers to various information carried in the three-dimensional space model, including member material characteristics, member dimension and shape and other member attribute information in the model, process data information such as progress information and quality information involved in engineering construction and the like. A three-dimensional model is established based on BIM, a key information carrier covering the whole life cycle of building design, construction, operation and maintenance is formed, and the method has important value for engineering construction. The mechanical model generally refers to a finite element model established in the civil engineering industry for evaluating the safety and reliability of structures, facilities and the like in the engineering construction process, and through analysis of the mechanical finite element model, scientific calculation can be performed aiming at the problems of strength, rigidity, stability and the like of an engineering structure, so that the safety and reliability of the structure can be judged.
The BIM technology is widely applied to engineering projects in recent years, and has the advantages that the BIM model can be conveniently associated with specific construction conditions, and the site condition, the construction progress, the construction change and the like can be fed back to the maximum extent in real time. The mechanical finite element model simplifies the site construction working conditions to a certain extent from the theoretical aspect so as to reduce the modeling difficulty and the calculation difficulty, but the calculation precision and the reliability are correspondingly influenced. Taking the construction progress and construction into a more example, on one hand, the construction stage analysis based on the mechanical finite element model generally takes the preset construction period as a standard, and the situation of procedure advance or delay often occurs in the actual construction, so that the deviation between the theoretical calculation and the actual situation occurs, which has great influence on the concrete structure construction taking the age as a key parameter; on the other hand, when the construction of the mechanical finite element model is changed, the model needs to be optimized correspondingly, the whole stress system can be changed by the optimization work, and the workload of mechanical analysis in the construction process is greatly increased.
At present, the engineering world at home and abroad gradually considers the combination of the BIM model and the mechanics finite element model, and the time sequence change of the BIM model in the construction process is fed back to the finite element model to the maximum extent, so that the finite element model evolves along with the construction process, and the modeling precision and efficiency of the mechanics finite element model are improved. However, due to the great difference between the modeling mechanism of the BIM model and the mechanical finite element model, the problem cannot be solved for a long time. For example, the BIM model is modeled in a component-based mode, and all types of components and component information are in the model; the mechanical finite element model is modeled by dividing units and nodes, the connective components of the building structure are directly considered as the nodes, the key stressed components of the building structure are divided into a plurality of units, and the non-key stressed components are not considered.
Disclosure of Invention
The invention provides a general modeling method of a mechanical model based on BIM by combining general requirements of mechanical finite element model analysis and BIM technology in the construction stage of the current building structure, solves the problem of conversion from the BIM model to the mechanical model, and can improve the efficiency and precision of establishment and optimization of the mechanical finite element model.
In order to solve the technical problems, the invention comprises the following technical scheme:
a general modeling method of a mechanical model based on BIM comprises the following steps:
step one, establishing a standardized component library and a simulation component library which can be used for converting a BIM model into a mechanical finite element model, specifically comprising the following steps,
establishing a corresponding standardized component family library of the BIM model by combining the types of the building structure engineering, wherein each component family comprises variable parameters and invariable parameters;
respectively establishing a finite element modeling instruction code of each component family based on an APDL parameterized design language aiming at a standardized component family library of a BIM model; the finite element modeling instruction codes of the component family comprise constant codes and variable codes; forming a corresponding component family finite element modeling instruction code library by the finite element modeling instruction generation of the component family, wherein each instruction code is attached to the corresponding component family;
aiming at a standardized component family library of a BIM model, building a self-weight load of a component;
establishing an additional constant load family, a live load family and a boundary condition family of the component in the form of a simulation component family to form a simulation component family library;
step two, establishing an initialized mechanical finite element model on the basis of a standardized component family library, a finite element modeling instruction code library of the APDL-based component family, a load family library and a boundary family library, and concretely comprises the following steps,
forming a BIM model based on a standardized component family library, forming finite element modeling instruction codes of corresponding components, and establishing dead weight loads of the corresponding components;
based on a simulation component family library, additional constant load, live load and boundary conditions are given to the BIM model;
and extracting all material characteristics, APDL language, load and boundaries from the BIM model, automatically forming an APDL calculation script, importing the APDL calculation script into ANSYS for model generation, viewing and solving, and forming an initialized mechanical finite element model.
Further, the method may further comprise,
step three, in the construction, the method for optimizing the initialized mechanical finite element model specifically comprises the following steps,
updating the BIM along with the construction progress, working procedures, construction change and other working condition changes, extracting all material characteristics, APDL language, load, boundary and the like of each stage, and importing the extracted material characteristics, APDL language, load, boundary and the like into an APDL calculation script template file to form a procedural APDL calculation script file;
finite element calculation is carried out based on the procedural APDL calculation script file, and the calculation result can be used as a reference for each specific decision in the construction process.
Further, APDL calculates script file accumulation and forms the file library, as the mechanics finite element model library of the overall process, for mechanics evolution trend analysis and mechanics problem trace back use.
Further, the dead weight load in the step one comprises a theoretical dead weight and a dead weight reference coefficient; establishing the dead weight load of the corresponding member in the second step, specifically comprising the following steps of automatically calculating the theoretical dead weight according to the size and the density of the member; defining a self-weight reference coefficient; and obtaining the self-weight load of the member according to the product of the theoretical self-weight and the self-weight reference coefficient.
Further, each additional constant load member of the additional constant load family comprises the following parameters: the load value, unit, distribution mode, direction, and the manner of adding the constant load member are the same as the manner of adding the material of the member of the BIM model.
Further, the parameters of the live load family include load value, unit, distribution mode and direction, and a separate adding mode is adopted between the live load and the member of the BIM model.
Further, the component parameters of the boundary condition family comprise boundary positions and boundary characteristics, and are added to the components of the BIM model in a separated mode.
Further, the variable parameters in the component properties of the BIM model include the cross-sectional size and length of the component, and the constant parameters include the component material.
Compared with the prior art, the general modeling method of the mechanical model based on the BIM has the following advantages that:
(1) the high operability advantage of the BIM model and the advantage of close combination with the construction process are fully utilized, the mechanical finite element model is directly generated from the BIM model, and the modeling efficiency of the mechanical finite element model is greatly improved;
(2) the BIM model feeds back the field situation more truly, the mechanical finite element model converted by the BIM model can have highly complex component characteristics, and the similarity between the load, the boundary condition and the real situation is more reliable than that of the traditional simplified mode, so that the modeling precision of the mechanical finite element model is improved;
(3) in the process of initialization conversion, a template file of the APDL calculation script is established, then all the procedural APDL calculation script files are generated based on the template, the reliability is higher, and the procedural script files can be generated in a self-defined mode at any time in the construction process, so that a foundation is laid for a large amount of continuous mechanics analysis in the construction process, and important auxiliary value can be embodied in the aspect of ensuring high-quality and high-efficiency construction of a structure.
Drawings
FIG. 1 is a framework diagram of a standard library for BIM-based general modeling of mechanical models in accordance with the present invention;
FIG. 2 is a flow chart of transformation of a BIM model into a mechanical finite element model in the present invention.
Detailed Description
The general modeling method for the BIM-based mechanical model provided by the invention is further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
The invention provides a general modeling method of a mechanical model based on BIM, which comprises the following steps:
step one, establishing a standard library which can be used for converting a BIM model into a mechanical finite element model;
and step two, establishing an initialized mechanical finite element model on the basis of the standard library.
The method is further described below in conjunction with the description of fig. 1 and 2.
Fig. 1 shows a frame diagram of a standard library, and this embodiment first introduces a frame diagram of a standard library constructed by the applicant, which is helpful for understanding the technical solution of the present invention. The standard library includes a standardized component family library and a simulated component family library.
As shown in fig. 1, each standard component of the BIM model includes component properties including variable parameters such as cross-sectional dimensions and length of the beam and column components. The member properties also include invariant parameters, such as member material, although invariant parameters may also provide options, such as concrete designation as C25 or C35. The component properties further comprise finite element instruction codes, and the finite element modeling instruction codes comprise constant codes and variable codes, wherein variable parameters of the component family are used as variables in the instruction codes, and constant parameters are used as constants in the instruction codes; the finite element modeling instruction codes form a respective component family finite element modeling instruction code library, each instruction code pertaining to a respective component family.
For the mechanical finite element model, the load of the component and the boundary conditions of the component need to be considered. The load of the member includes the self weight of the member, and additional constant load and live load acting on the member. Since the self weight of the member is closely related to the standard member, it can be used as a part of the property of the member. The dead weight load of the BIM model comprises theoretical dead weight and a dead weight reference coefficient, the theoretical dead weight can be automatically calculated by the size and the density of the component, the dead weight reference coefficient can be defined in the later period, and the dead weight load of the component can be obtained according to the product of the theoretical dead weight and the dead weight reference coefficient.
The additional constant load and the live load are not the properties of the standard component of the BIM model, but are required by meeting the mechanical finite element model, so that a simulation component family can be established for the additional constant load and the live load, and similarly, a boundary condition family is established in the form of the simulation component family, so that a simulation component family library is formed.
As shown in fig. 1, the library of simulation component families includes additional families of constant loads, families of live loads, and families of boundary conditions. For example, the parameters of the additive constant load group include load value, unit, distribution mode, direction, etc., and the additive constant load component is added in the same way as the material additive way of the common standard component. For example, the parameters of the live load group include load value, unit, distribution mode, direction, etc. since the live load is a load whose size or position can be changed, a separate adding mode is adopted between the live load and the structural member to improve the flexibility of adding the live load simulation member. Considering that the finite element model needs to input boundary conditions, a boundary condition library needs to be established. Boundary conditions are also established in the form of a simulation component family, parameters comprise boundary condition positions, boundary characteristics and the like, and a separation type adding mode is adopted between the parameters and the structural components, so that the flexibility of adding the boundary condition simulation components is improved.
Therefore, the first step may specifically include the following steps:
establishing a corresponding standardized component family library of the BIM model by combining the types of the building structure engineering, wherein each component family comprises variable parameters and invariable parameters;
respectively establishing a finite element modeling instruction code of each component family based on an APDL parameterized design language aiming at a standardized component family library of a BIM model; the finite element modeling instruction codes of the component family comprise constant codes and variable codes; forming a corresponding component family finite element modeling instruction code library by the finite element modeling instruction generation of the component family, wherein each instruction code is attached to the corresponding component family;
aiming at a standardized component family library of a BIM model, building a self-weight load of a component;
and establishing an additional constant load family, a live load family and a boundary condition family of the component in the form of a simulation component family to form a simulation component family library.
It should be noted that the APDL is called ANSYS Parametric Design Language, also called ANSYS Parametric Design Language, and the application of the APDL is mainly embodied in that a user can organize ANSYS commands by using a programming Language and write a parameterized user program, thereby realizing the whole process of finite element analysis, i.e., establishing a parameterized CAD model, parameterized grid division and control, parameterized material definition, parameterized load and boundary condition definition, parameterized analysis control and solution, and parameterized post-processing.
Fig. 2 shows a flow chart of transformation from the BIM model to the mechanical finite element model, which needs to complete the following process: standardized components need to be added to form a BIM model; and then giving a finite element modeling instruction code and a dead weight reference coefficient, defining an additional constant load, adding a live load simulation component and a boundary simulation component, extracting all material characteristics, APDL language, load, boundary and the like from the BIM model, automatically forming an APDL calculation script, importing the APDL calculation script into ANSYS for model generation, and forming an initialized mechanical finite element model. The initialized mechanical finite element model still has problems in the aspect of calculation, and correspondingly, APDL statements which are established by limiting the mechanical finite element model are found out to be missing, and the APDL statements are added to form a template file of an APDL calculation script.
Therefore, the second step may specifically include the following steps:
forming a BIM model based on a standardized component family library, forming finite element modeling instruction codes of corresponding components, and establishing dead weight loads of the corresponding components; the self-weight load of the BIM model comprises a theoretical self-weight and a self-weight reference coefficient, the theoretical self-weight can be automatically calculated according to the size and the density of the component, only the self-weight reference coefficient is defined, and the self-weight load of the component can be obtained according to the product of the theoretical self-weight and the self-weight reference coefficient;
based on a simulation component family library, additional constant load, live load and boundary conditions are given to the BIM model; by way of example, the addition of deadweight refers to the addition of a deadweight reference coefficient; the additional constant load means that an additional constant load component is added on the existing BIM component in a material mode; live load means that a live load simulation component is added on the basis of the existing BIM component;
and extracting all material characteristics, APDL language, load and boundaries from the BIM model, automatically forming an APDL calculation script, importing the APDL calculation script into ANSYS for model generation, viewing and solving, and forming an initialized mechanical finite element model.
Furthermore, the BIM model is updated along with the construction progress, working procedures, construction change and other working condition changes during construction. Therefore, as shown in fig. 2, the mechanical finite element model needs to be updated and optimized during construction. Therefore, a preferred embodiment is that the method further comprises the steps of:
in the construction, the method for optimizing the initialized mechanical finite element model specifically comprises the following steps,
updating the BIM along with the construction progress, working procedures, construction change and other working condition changes, extracting all material characteristics, APDL language, load, boundary and the like of each stage, and importing the extracted material characteristics, APDL language, load, boundary and the like into an APDL calculation script template file to form a procedural APDL calculation script file;
finite element calculation is carried out based on the procedural APDL calculation script file, and the calculation result can be used as a reference for each specific decision in the construction process.
More preferably, the APDL calculation script files are accumulated to form a file library, and the APDL calculation script files correspond to the mechanical finite element model, so that a mechanical finite element model library of the whole process is formed for mechanical evolution trend analysis and mechanical problem tracing.
In summary, compared with the prior art, the general modeling method for the mechanical model based on the BIM provided by the invention has the following advantages:
(1) the high operability advantage of the BIM model and the advantage of close combination with the construction process are fully utilized, the mechanical finite element model is directly generated from the BIM model, and the modeling efficiency of the mechanical finite element model is greatly improved;
(2) the BIM model feeds back the field situation more truly, the mechanical finite element model converted by the BIM model can have highly complex component characteristics, and the similarity between the load, the boundary condition and the real situation is more reliable than that of the traditional simplified mode, so that the modeling precision of the mechanical finite element model is improved;
(3) in the process of initialization conversion, a template file of the APDL calculation script is established, then all the procedural APDL calculation script files are generated based on the template, the reliability is higher, and the procedural script files can be generated in a self-defined mode at any time in the construction process, so that a foundation is laid for a large amount of continuous mechanics analysis in the construction process, and important auxiliary value can be embodied in the aspect of ensuring high-quality and high-efficiency construction of a structure.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A general modeling method of a mechanical model based on BIM is characterized by comprising the following steps:
step one, establishing a standardized component library and a simulation component library which can be used for converting a BIM model into a mechanical finite element model, specifically comprising the following steps,
establishing a corresponding standardized component family library of the BIM model by combining the types of the building structure engineering, wherein each component family comprises variable parameters and invariable parameters;
respectively establishing a finite element modeling instruction code of each component family based on an APDL parameterized design language aiming at a standardized component family library of a BIM model; the finite element modeling instruction codes of the component family comprise constant codes and variable codes; forming a corresponding component family finite element modeling instruction code library by the finite element modeling instruction generation of the component family, wherein each instruction code is attached to the corresponding component family;
aiming at a standardized component family library of a BIM model, building a self-weight load of a component;
establishing an additional constant load family, a live load family and a boundary condition family of the component in the form of a simulation component family to form a simulation component family library;
step two, establishing an initialized mechanical finite element model on the basis of a standardized component family library, a finite element modeling instruction code library of the APDL-based component family, a load family library and a boundary family library, and concretely comprises the following steps,
forming a BIM model based on a standardized component family library, forming finite element modeling instruction codes of corresponding components, and establishing dead weight loads of the corresponding components;
based on a simulation component family library, additional constant load, live load and boundary conditions are given to the BIM model;
and extracting all material characteristics, APDL language, load and boundaries from the BIM model, automatically forming an APDL calculation script, importing the APDL calculation script into ANSYS for model generation, viewing and solving, and forming an initialized mechanical finite element model.
2. The method of claim 1, further comprising,
step three, in the construction, the method for optimizing the initialized mechanical finite element model specifically comprises the following steps,
updating the BIM along with the construction progress, working procedures, construction change and other working condition changes, extracting all material characteristics, APDL language, load, boundary and the like of each stage, and importing the extracted material characteristics, APDL language, load, boundary and the like into an APDL calculation script template file to form a procedural APDL calculation script file;
finite element calculation is carried out based on the procedural APDL calculation script file, and the calculation result can be used as a reference for each specific decision in the construction process.
3. The method of claim 2, wherein the APDL calculation script files are accumulated to form a file library as a mechanical finite element model library of the whole process for mechanical evolution trend analysis and mechanical problem tracing.
4. The method according to any one of claims 1 to 3,
the dead weight load in the step one comprises a theoretical dead weight and a dead weight reference coefficient;
establishing the dead weight load of the corresponding member in the second step, specifically comprising the following steps of automatically calculating the theoretical dead weight according to the size and the density of the member; defining a self-weight reference coefficient; and obtaining the self-weight load of the member according to the product of the theoretical self-weight and the self-weight reference coefficient.
5. The method according to any one of claims 1 to 3,
each additional constant load member of the additional constant load family comprises the following parameters: the load value, unit, distribution mode, direction, and the manner of adding the constant load member are the same as the manner of adding the material of the member of the BIM model.
6. The method according to any one of claims 1 to 3,
the parameters of the live load family comprise a load value, a unit, a distribution mode and a direction, and a separated adding mode is adopted between the live load and the member of the BIM model.
7. The method of any one of claims 1 to 3, wherein the component parameters of the boundary condition family include boundary position, boundary characteristics, and a separate addition with the components of the BIM model.
8. A method according to any one of claims 1 to 3, wherein the variable parameters in the component properties of the BIM model include the cross-sectional dimensions and length of the component and the constant parameters include the component material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911239925.0A CN111159797B (en) | 2019-12-06 | 2019-12-06 | BIM-based general modeling method for mechanical model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911239925.0A CN111159797B (en) | 2019-12-06 | 2019-12-06 | BIM-based general modeling method for mechanical model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111159797A true CN111159797A (en) | 2020-05-15 |
| CN111159797B CN111159797B (en) | 2023-03-31 |
Family
ID=70556515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911239925.0A Active CN111159797B (en) | 2019-12-06 | 2019-12-06 | BIM-based general modeling method for mechanical model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111159797B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792025A (en) * | 2022-06-23 | 2022-07-26 | 山东高速德建集团有限公司 | Dynamo-based concrete wall column template system mechanical modeling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017121315A1 (en) * | 2016-01-12 | 2017-07-20 | 广州机施建设集团有限公司 | Construction method for building truss and floor slab |
| CN107229794A (en) * | 2017-05-27 | 2017-10-03 | 武汉市陆刻科技有限公司 | A kind of CAE and VR model construction system and its management method |
| DE102016004382A1 (en) * | 2016-04-08 | 2017-10-12 | Liebherr-Werk Biberach Gmbh | Method and device for planning and / or controlling and / or simulating the operation of a construction machine |
| CN107818227A (en) * | 2017-11-17 | 2018-03-20 | 厦门大学 | A kind of bridge machinery approaches to IM and system based on BIM |
| CN110188423A (en) * | 2019-05-16 | 2019-08-30 | 广西交通设计集团有限公司 | A kind of linear engineering structure fast B IM modeling method based on FEM meshing |
-
2019
- 2019-12-06 CN CN201911239925.0A patent/CN111159797B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017121315A1 (en) * | 2016-01-12 | 2017-07-20 | 广州机施建设集团有限公司 | Construction method for building truss and floor slab |
| DE102016004382A1 (en) * | 2016-04-08 | 2017-10-12 | Liebherr-Werk Biberach Gmbh | Method and device for planning and / or controlling and / or simulating the operation of a construction machine |
| CN107229794A (en) * | 2017-05-27 | 2017-10-03 | 武汉市陆刻科技有限公司 | A kind of CAE and VR model construction system and its management method |
| CN107818227A (en) * | 2017-11-17 | 2018-03-20 | 厦门大学 | A kind of bridge machinery approaches to IM and system based on BIM |
| CN110188423A (en) * | 2019-05-16 | 2019-08-30 | 广西交通设计集团有限公司 | A kind of linear engineering structure fast B IM modeling method based on FEM meshing |
Non-Patent Citations (3)
| Title |
|---|
| 孙路等: "基于ANSYS的系列化零部件的参数化有限元建模分析", 《科技经济市场》 * |
| 陈志为等: "基于BIM的复杂结构有限元精细模型生成", 《土木工程与管理学报》 * |
| 陈明等: "建筑信息模型技术在地下输电工程结构设计中的应用", 《工业建筑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114792025A (en) * | 2022-06-23 | 2022-07-26 | 山东高速德建集团有限公司 | Dynamo-based concrete wall column template system mechanical modeling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111159797B (en) | 2023-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111063030B (en) | Dynamo-based BIM parameterized modeling method and device | |
| Ji et al. | Integration of parametric geometry into IFC-Bridge | |
| KR20190099779A (en) | Method for designing a buildingstructure | |
| CN102375904A (en) | Parameterized computer modeling method for universal main girders of cranes | |
| CN111159797B (en) | BIM-based general modeling method for mechanical model | |
| CN110837713A (en) | BIM and finite element model synchronous optimization method and system of steel platform formwork equipment | |
| CN103927409B (en) | Concrete chimney stress analysis system based on finite element analysis | |
| CN106383956A (en) | Conversion system and method for civil engineering model data of thermal power plant | |
| CN106682275B (en) | Load processing method and device for industrial factory building structure modeling | |
| KR102039974B1 (en) | System and method for automatic calculation of WBS cost by using work classification system and automatic quantity calculation by object position | |
| CN111259575B (en) | Finite element analysis design method for complex steel pipe node integral model | |
| CN108549765B (en) | Method for designing road longitudinal by using element line in Civil3D | |
| CN115587480A (en) | Digital simulation method and digital simulation device | |
| CN115374676A (en) | Automatic modeling method, system and storage medium for finite element grid of motor stator | |
| KR20190114101A (en) | Method for designing optimizationally 3D model library to International standard standard product in Shipbuilding Marine | |
| CN110377934B (en) | Design calculation method and device for marine electromechanical product | |
| KR20020037842A (en) | A Bridge Design Automatic System And Storage Medium Thereof | |
| CN112765711A (en) | BIM modeling method for green building simulation calculation | |
| CN103853862A (en) | Templated design method for cannon parts | |
| CN112906235A (en) | Method for three-dimensional factory construction and engineering application | |
| CN105138758A (en) | Finite element parametric analysis system and analysis method based on database | |
| CN107103112B (en) | Material selection method and device for power transformation framework by using computer | |
| Chiu et al. | Heterogeneous Beam Element for Multiscale Modeling of Composite Beam-Like Structures Featuring Spanwise Heterogeneity | |
| EP4339857A1 (en) | System and method for automatically calculating quantity and construction cost of railway facilities based on building information modeling | |
| Sampai et al. | Structural Design Developed in a BIM Environment: Benefits and Limitations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |