CN107679332B - Transmission tower BIM model construction method based on Tekla platform - Google Patents
Transmission tower BIM model construction method based on Tekla platform Download PDFInfo
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Abstract
The invention relates to a power transmission iron tower BIM model construction method based on a Tekla platform, which comprises the following steps: 1) reading relevant model data and calculation result data of iron tower design and exporting a cross section library for iron tower calculation in a Tekla platform format; 2) importing the model data and a cross section library for calculation of the iron tower in the Tekla platform format into the Tekla platform to generate a three-dimensional model of the iron tower; 3) combining and grouping the same section of rod pieces in the three-dimensional model of the iron tower in the Tekla platform; 4) adding all connection nodes in the three-dimensional model of the iron tower; 5) creating an accessory component in a three-dimensional model of the iron tower; 6) carrying out spatial collision check on the three-dimensional model of the iron tower; 7) and inputting engineering information to the parts in the three-dimensional model of the iron tower through the Tekla platform. The invention can realize effective integration of design, drawing and processing lofting of the power transmission tower, improve the utilization rate of the achievement in the design stage and greatly reduce the error occurrence probability caused by artificial input and output.
Description
Technical Field
The invention relates to the technical field of electric power engineering construction, in particular to a construction method of a BIM (building information modeling) model of a power transmission tower based on a Tekla platform.
Background
Through popularization and application results of the BIM technology in the building industry in recent years, the BIM technology can be seen to fully integrate input and output information of each stage of design, modeling, processing, construction, operation and maintenance and the like, and has remarkable effect on improving the quality and the efficiency of the whole life cycle of the engineering. For this reason, the BIM technology is adopted by more and more engineering construction industries. At present, the BIM technology has been successfully applied to some important electric power engineering projects, and good economic benefits and social benefits are obtained.
The power transmission iron tower is used as an important component of power transmission line engineering, and the building of the BIM model of the power transmission iron tower has great significance for design, processing, construction and later-stage operation and maintenance management. At present, a power transmission tower mainly needs to go through the following stages from design to construction completion: 1. planning, modeling and calculating the iron tower by designers, and sorting the calculation result into a commander diagram; 2. drawing a two-dimensional construction drawing by a drafter according to an iron tower command picture provided by a designer; 3. a processing factory performs three-dimensional lofting, trial assembly and batch production according to a two-dimensional construction drawing and sends the three-dimensional lofting, the trial assembly and the batch production to a project site; 4. and the construction unit carries out the installation and erection of the iron tower. The above procedures have many problems, which are beyond the concept of high efficiency, integration and saving at the present stage, and mainly appear in the following aspects: 1. model files and calculation result files in the design process cannot be shared by design, drawing and processing units, and the repetitive workload is large; 2. a large amount of artificial input and output are performed in the middle process, so that the possibility of error occurrence under the influence of artificial subjective factors is increased; 3. the design unit needs to be repeatedly matched with the drawing unit and the processing unit, and a great deal of energy is consumed; 4. the currently used drawing software is two-dimensional, and the space collision cannot be checked in the drawing process, so that the potential rework hazard is buried in the later processing and construction processes; 5. a complete three-dimensional holographic model cannot be formed, and three-dimensional transfer requires additional organization personnel to reconstruct the three-dimensional model.
At present, methods for realizing a BIM model of an iron tower exist in an existing three-dimensional electronic platform for designing a power transmission line, but the ideas of the three-dimensional electronic platform are heavy lines and light iron towers, and the proposed methods are highly dependent on other software developed by own companies, so that the method has great limitation; on the other hand, the methods for creating the iron tower model in the three-dimensional design platform of the power transmission line are all represented by simulation through solid lines, so that the actual specification and the section attribute of the iron tower rod pieces cannot be embodied, and the parts such as node plates, bolts and the like connected between the rod pieces cannot be embodied, and the method is still greatly different from the real iron tower BIM model without precision. The lofting model of the processing plant is directly adopted as the BIM model of the iron tower, although the model can meet the precision requirement of the BIM model, the data format of lofting software of the processing plant mostly does not meet the international common format such as IFC, the problem that the data is not compatible with the digital transfer management platform of the national power grid is often caused, and meanwhile, the models do not have the capacity of adding additional information such as design, processing, construction, operation and maintenance and the like, can not be repeatedly used by participating units in other stages of engineering and can not be called as the BIM model of the iron tower.
Disclosure of Invention
In view of the above, the invention provides a transmission tower BIM model construction method based on a Tekla platform, which improves the utilization rate of results in a design stage and greatly reduces the error occurrence probability caused by multiple times of artificial input and output; the model can be directly used by a design unit, a processing factory, a construction unit and an operation and maintenance management unit, and the model and the information management of the engineering full life cycle are really realized.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a power transmission tower BIM model construction method based on a Tekla platform comprises the following steps:
step 1: reading relevant model data and calculation result data of iron tower design and exporting a cross section library for iron tower calculation in a Tekla platform format, wherein the model data and the calculation result data comprise space positions, specifications, quantity and internal force calculation results of all main materials and auxiliary materials forming the iron tower;
step 2: importing the model data and a cross section library for calculation of the iron tower in the Tekla platform format into the Tekla platform to construct a three-dimensional solid frame model of the iron tower;
and step 3: according to the sectional form of the iron tower rod pieces in the command drawing in the design stage, combining and grouping the same segment of rod pieces in the three-dimensional solid framework model of the iron tower in the Tekla platform;
and 4, step 4: creating nodes, and adding all connection nodes of the iron tower in a three-dimensional solid frame model of the iron tower;
and 5: the method comprises the steps that auxiliary components of the iron tower are created in a three-dimensional solid framework model of the iron tower, wherein the auxiliary components comprise an ladder stand, foot nails and a rest platform;
step 6: carrying out space collision check on the three-dimensional solid frame model of the iron tower;
and 7: and inputting engineering information including design, processing, construction and operation and maintenance stages into all parts in the three-dimensional solid framework model of the iron tower through the Tekla platform.
Further, in step 1, relevant model data of the iron tower design is checked, and the specific checking content is as follows: and (4) checking the number of bolts at the end of the rod piece if the full strength or slenderness ratio of the rod piece is over limit in the design process.
Further, in step 4, the node includes: the connecting node comprises a K-type node, an X-type node, a basic flange node, a cross arm and main material connecting node, a partition node, a ground wire hanging node, a plug board node, a wrap angle steel node and a basic node.
Further, the step 7 can be performed at any stage of the project, so that the model state and the field actual state are kept consistent in the whole life cycle of the project.
Further, the method also comprises the step 8: and generating a two-dimensional construction drawing and a material list by the three-dimensional solid frame model of the iron tower, and processing the two-dimensional construction drawing to meet the drawing specification requirement of the power transmission iron tower in the power industry.
Further, the processing includes: the rod pieces and the plates are automatically numbered; adding rod piece information and bolt information; adding a structure diagram dimension label; adding similar triangle labels; adding fire curves and directrices; creating a large sample graph and a section graph; summarizing a material table; and editing the picture frame.
Compared with the prior art, the invention has the beneficial effects that:
(1) the design, drawing and processing lofting of the power transmission iron tower are effectively integrated, and the traditional operation mode of the power transmission iron tower industry is thoroughly broken through;
(2) after the design of the iron tower is finished, the accurate three-dimensional model of the iron tower can be quickly established by using the design result, the utilization rate of the result in the design stage is improved, and the error occurrence probability caused by multiple times of artificial input is greatly reduced;
(3) the model can be directly used by a design unit, a processing factory, a construction unit and an operation and maintenance management unit, and key information of each stage can be input and modified in the model by each relevant unit according to the requirement of the relevant unit, so that the model and the information management of the engineering full life cycle are really realized.
Drawings
FIG. 1 is a flow diagram of a construction method of a BIM model of a power transmission tower based on a Tekla platform;
FIG. 2 is a diagram of a data interface associated with reading a design of an iron tower according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a node according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating the processing effect of a two-dimensional construction drawing according to an embodiment of the present invention;
FIG. 5 is a design, manufacturing, and construction information entry interface diagram in an embodiment of the present invention.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
As shown in fig. 1, a method for constructing a BIM model of a power transmission tower based on a Tekla platform includes the following steps:
step 1: reading relevant model data and calculation result data of iron tower design and exporting a cross section library for iron tower calculation in a Tekla platform format, wherein the model data and the calculation result data comprise space positions, specifications, quantity and internal force calculation results of all main materials and auxiliary materials forming the iron tower;
step 2: importing the model data and a cross section library for calculation of the iron tower in the Tekla platform format into the Tekla platform to construct a three-dimensional solid frame model of the iron tower;
and step 3: according to the sectional form of the iron tower rod pieces in the command drawing in the design stage, combining and grouping the same segment of rod pieces in the three-dimensional solid framework model of the iron tower in the Tekla platform;
and 4, step 4: creating nodes, and adding all connection nodes of the iron tower in a three-dimensional solid frame model of the iron tower;
and 5: the method comprises the steps that auxiliary components of the iron tower are created in a three-dimensional solid framework model of the iron tower, wherein the auxiliary components comprise an ladder stand, foot nails and a rest platform;
step 6: carrying out space collision check on the three-dimensional solid frame model of the iron tower;
and 7: and inputting engineering information including design, processing, construction and operation and maintenance stages into all parts in the three-dimensional solid framework model of the iron tower through the Tekla platform.
In this embodiment, in step 1, when reading the model data, the relevant model data of the iron tower design needs to be checked, and the specific checking content is as follows: whether the rod piece full stress or the slenderness ratio exceeds the limit or not in the design process is judged, the number of the end bolts of the rod piece is rechecked, and a data interface diagram of a relevant model of the design of the iron tower is read and is shown in figure 2.
In this embodiment, the nodes include common nodes in a power transmission tower, such as K-type nodes, X-type nodes, basic flange nodes, cross arm and main material connection nodes, partition nodes, ground wire hooking nodes, insertion plate nodes (U-shaped, C-shaped, and cross-shaped), angle steel wrapping nodes (single-wrapped or double-wrapped), basic nodes (flange foundation, tower footing plate foundation, and insertion foundation), and the like, and a schematic diagram of the nodes is shown in fig. 3.
In this embodiment, the step 7 can be performed at any stage of the project, so that the model state and the field actual state are consistent in the whole life cycle of the project. The core part of the BIM model is 'I' (Information) which is various Information attached in the model, and the Information comprises the whole process Information of project planning, design, processing, construction, operation and maintenance. The Tekla platform can be used for conveniently realizing the input and modification of information of each stage of a project, and other required key information can be added through a secondary development technology.
In this embodiment, the method further includes step 8: generating a two-dimensional construction drawing and a material list by a three-dimensional solid framework model of the iron tower, processing the two-dimensional construction drawing to ensure that the two-dimensional construction drawing meets the drawing standard requirement of the power transmission iron tower in the power industry, wherein the processing comprises the following steps: the rod pieces and the plates are automatically numbered; adding rod piece information and bolt information; adding a structure diagram dimension label; adding similar triangle labels; adding fire curves and directrices; creating a large sample graph and a section graph; summarizing a material table; the processing effect diagram of the edit frame is shown in fig. 4. At present, two-dimensional drawings are required to be used as bases for construction and filing in the power industry, and when the power BIM technology is applied and developed to a certain stage, construction and filing do not depend on the two-dimensional drawings any more, the step 8 can be cancelled.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (6)
1. A power transmission tower BIM model construction method based on a Tekla platform is characterized by comprising the following steps:
step 1: reading relevant model data and calculation result data of iron tower design and exporting a cross section library for iron tower calculation in a Tekla platform format, wherein the model data and the calculation result data comprise space positions, specifications, quantity and internal force calculation results of all main materials and auxiliary materials forming the iron tower;
step 2: importing the model data and a cross section library for calculation of the iron tower in the Tekla platform format into the Tekla platform to construct a three-dimensional solid frame model of the iron tower;
and step 3: according to the sectional form of the iron tower rod pieces in the command drawing in the design stage, combining and grouping the same segment of rod pieces in the three-dimensional solid framework model of the iron tower in the Tekla platform;
and 4, step 4: creating nodes, and adding all connection nodes of the iron tower in a three-dimensional solid frame model of the iron tower;
and 5: the method comprises the steps that auxiliary components of the iron tower are created in a three-dimensional solid framework model of the iron tower, wherein the auxiliary components comprise an ladder stand, foot nails and a rest platform;
step 6: carrying out space collision check on the three-dimensional solid frame model of the iron tower;
and 7: and inputting engineering information including design, processing, construction and operation and maintenance stages into all parts in the three-dimensional solid framework model of the iron tower through the Tekla platform.
2. The BIM model construction method of the transmission tower based on the Tekla platform according to claim 1, wherein in the step 1, relevant model data and calculation result data of tower design are checked, and the specific checking contents are as follows: and (4) checking the number of bolts at the end of the rod piece if the full strength or slenderness ratio of the rod piece is over limit in the design process.
3. The BIM construction method of the transmission tower based on the Tekla platform according to claim 1, wherein in the step 4, the nodes include: the connecting structure comprises K-type nodes, X-type nodes, basic flange nodes, cross arm and main material connecting nodes, partition surface nodes, ground wire hanging nodes, inserting plate nodes, angle steel wrapping nodes, tower baseboard basic nodes and inserting type basic nodes.
4. The method for building the BIM of the transmission tower based on the Tekla platform according to claim 1, wherein the step 7 can be carried out at any stage of engineering, so that the model state and the field actual state are kept consistent in the whole life cycle of the engineering.
5. The BIM model construction method for the transmission tower based on the Tekla platform according to claim 1, further comprising the step of 8: and generating a two-dimensional construction drawing and a material list by the three-dimensional solid frame model of the iron tower, and processing the two-dimensional construction drawing to meet the drawing specification requirement of the power transmission iron tower in the power industry.
6. The BIM construction method for the Tekla platform-based transmission tower is characterized by comprising the following steps of: the rod pieces and the plates are automatically numbered; adding rod piece information and bolt information; adding a structure diagram dimension label; adding similar triangle labels; adding fire curves and directrices; creating a large sample graph and a section graph; summarizing a material table; and editing the picture frame.
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| CN108805303A (en) * | 2018-06-19 | 2018-11-13 | 南方电网科学研究院有限责任公司 | Transmission tower emergency repair method and system |
| CN110458956A (en) * | 2019-07-11 | 2019-11-15 | 中国铁路设计集团有限公司 | A method of the arbitrary section based on Component Gallery establishes BIM model |
| CN111797450B (en) * | 2020-05-29 | 2024-03-19 | 国网上海电力设计有限公司 | BIM-based power grid engineering model design system, method, equipment and storage medium |
| CN115062376A (en) * | 2022-05-25 | 2022-09-16 | 中国电力工程顾问集团华东电力设计院有限公司 | Three-dimensional digital model establishing method and device for power transmission tower |
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