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Power transmission tower automatic modeling method and system based on building information model

An automatic modeling and transmission tower technology, applied in the field of power transmission and transformation, can solve problems such as heavy workload, insufficient information sharing, and repetitive modeling

Pending Publication Date: 2020-01-24
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Transmission towers are important components of transmission lines. Due to the different division of labor in the tower industry: the design institute is responsible for the load calculation of the tower, the command map and blueprint drawing, and the tower factory is responsible for the three-dimensional lofting of the tower, component processing, and trial assembly. There are insufficient information sharing, construction Problems such as duplication
Moreover, under the current technical conditions, since the design institute is not equipped with 3D modeling capabilities for transmission towers, it is quite difficult to carry out 3D digital delivery of transmission lines, and the workload is heavy. It is urgent to realize automatic modeling of transmission towers in the design stage of transmission towers (from a certain In this sense, automatic modeling in the design stage is an inherent requirement of BIM technology), so that the 3D model of the tower meets the requirements of digital delivery and can be perfected by the tower factory, and then converted into NC codes and directly processed by CNC machine tools

Method used

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  • Power transmission tower automatic modeling method and system based on building information model
  • Power transmission tower automatic modeling method and system based on building information model
  • Power transmission tower automatic modeling method and system based on building information model

Examples

Experimental program
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Effect test

Embodiment 1

[0117] From figure 1 It can be seen that an automatic modeling method for transmission towers based on building information models includes:

[0118] S1. Identify the rods of the transmission tower according to the tower load calculation results of the transmission tower;

[0119] Further, identifying the rods of the transmission tower according to the calculation results of the tower load of the transmission tower includes: obtaining the information of all the rods of the transmission tower based on the calculation results of the tower load of the transmission tower;

[0120] Based on all member information, identify the frontal outline of the transmission tower through the preset frontal outline recognition algorithm in the BIM model;

[0121] identifying a member of a preset type from members included in the outer contour line;

[0122] Among them, the preset types of members include: the main material of the tower body, the main material of the cross-arm and the transver...

Embodiment 2

[0179] S1. Identify the rods of the transmission tower according to the tower load calculation results of the transmission tower;

[0180] Specifically, including:

[0181] 1. Load calculation result interface definition

[0182] The load calculation software for transmission towers mainly includes Daoheng, iTower, and SmartTower. The cores of each load calculation software are basically the same. Therefore, based on the iTower load calculation software, the automatic modeling data interface for angle steel towers is stipulated. The information contained in the interface is as follows:

[0183] 1) Tower height and number of legs; 2) Node classification; distribution table; 3) Number of nodes; 4) Detailed information of nodes; 5) Number of main material segments; 6) Detailed information of segments; Number of rows; 8) Rod material code table; 9) Number of stress-bearing members and auxiliary members; 10) Detailed information of members.

[0184] in, figure 2 interface tower...

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Abstract

The invention discloses a power transmission tower automatic modeling method and system based on a building information model. The power transmission tower automatic modeling method comprises the steps: recognizing rod pieces of a power transmission tower according to a tower load calculation result of the power transmission tower; acquiring a connection relationship and an orientation rule of therod pieces based on the building information model; identifying a node corresponding to each rod piece and a surface corresponding to the node based on the rod piece, the rod piece connection relationship and the orientation rule; and automatically generating a power transmission tower three-dimensional model based on the identified rod pieces, the nodes corresponding to the rod pieces and the surfaces corresponding to the nodes. According to the technical scheme, the performance is stable, and the function meets the delivery requirement; and compared with traditional three-dimensional lofting, the workload can be effectively reduced, and very remarkable economic benefits and social benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of power transmission and transformation, and in particular relates to an automatic modeling method and system for a power transmission tower based on a building information model. Background technique [0002] On the basis of investigating the development status of Building Information Modeling (Building Information Modeling (BIM) technology and the status quo of the transmission tower industry, through in-depth analysis, it is determined that the automatic modeling of transmission angle steel towers in the structural design stage of transmission towers is the key to the delivery and design of three-dimensional digital flowers for lines. The core link of integrated development with processing. [0003] Transmission towers are important components of transmission lines. Due to the different division of labor in the tower industry: the design institute is responsible for the load calculation of the tower, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13E04H12/00
CPCE04H12/00
Inventor 汪长智李清华韩军科黄耀苏志钢朱彬荣胡晓光王飞曹晔晖
Owner CHINA ELECTRIC POWER RES INST
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