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Method for expression and statistics of engineering quantity based on BIM model

A quantity meter and engineering technology, applied in calculation, electrical digital data processing, special data processing applications, etc., can solve the problems of inability to find physical components, inability to express engineering quantities, calculations, etc., to achieve convenient reading and identification, and easy Extended management, easy to find the effect

Active Publication Date: 2019-03-01
CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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Problems solved by technology

[0003] In the application of BIM technology, the expression and statistics of engineering quantity based on BIM model is a difficult point, because different design stages have different requirements for the modeling accuracy of BIM model, some quantities cannot be calculated from the model, and some quantities cannot find the corresponding physical components , all engineering quantities cannot be expressed in the BIM model

Method used

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  • Method for expression and statistics of engineering quantity based on BIM model
  • Method for expression and statistics of engineering quantity based on BIM model
  • Method for expression and statistics of engineering quantity based on BIM model

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Embodiment approach

[0025] The present invention relates to the method for engineering quantity expression and statistics based on BIM model, and the main implementation methods are as follows:

[0026] 1) First, based on the professional design unit, organize all the directory nodes and components in the design unit, and create the directory structure tree of the bridge. For example, the definition of the design unit of a bridge: a relatively independent and complete engineering unit within the bridge discipline, such as a bridge, a culvert, etc., must be divided into different design units when crossing different budget estimates.

[0027] For example, the XXX super large bridge establishes a complete directory structure tree of the bridge. The structure directory tree refers to the multi-level tree structure from the root directory of the design unit to the smallest component unit. Such as figure 1 shown.

[0028] 2) Carry out LID coding for each node or component in the directory structure ...

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Abstract

The invention relates to a method for expression and statistics of engineering quantity based on BIM model. A mapping relationship is created between nodes of that structure tree and component one-to-one correspondence. The node is used to quickly find out the quantity of each project under the node or component, and the engineering quantity database separated from the model is created, and the quantity of all projects under the component is viewed through the entity component in the model, so that the expression and statistics of engineering quantity based on the BIM model can be quickly realized, and the engineering quantity table that meets the needs of budget estimation and preparation can be generated. As that LID code attribute is added to the component. The BIM model is separated from the engineering quantity database, and the nodes are associated with the components by LID, so that the one-to-one correspondence relationship of each node and component is created. The coding structure is simple, and it is convenient to find and locate the components and all the engineering quantity under the components, and it is convenient for the computer to read and identify the components, and the efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of construction and traffic engineering, in particular to a method for expressing and counting project quantities based on a BIM model. Background technique [0002] BIM technology is developing rapidly in the field of construction and transportation engineering. Computer information technology represented by BIM technology has become the research and development direction of construction engineering. "2016~2020 Construction Industry Information Development Outline" points out that the latest information centered on BIM Technology has become the core technology that supports industry technology upgrades, production mode changes, and management model innovations. It is required that design units and construction companies should master and realize the integrated application of BIM, enterprise management systems and other information technologies. [0003] In the application of BIM technology, the expression ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13Y02P90/30
Inventor 刘彦明
Owner CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP
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