Spacial three-dimensional special-shaped bridge pier rebar construction method based on BIM modelling technology

A construction method and steel bar technology, applied in buildings, bridges, bridge parts, etc., can solve the problems of low precision, materials, labor and long time, and achieve the effects of improving precision, improving work efficiency, saving construction period and cost

Active Publication Date: 2017-11-21
CHINA FIRST HIGHWAY ENG +1
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Problems solved by technology

[0004] 1. Only two-dimensional plane steel bars can be bent,
[0005] 2. The steel bar on the two-dimensional curved surface needs to be made into a steel frame before construction. At the same time, after the tire frame is completed, it is necessary to manually perform the trial bending work of the steel bar repeatedly against the tire frame, which consumes materials, labor and time. The accuracy is low

Method used

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  • Spacial three-dimensional special-shaped bridge pier rebar construction method based on BIM modelling technology

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Embodiment Construction

[0019] The invention relates to a method for constructing steel bars of three-dimensional special-shaped bridge piers based on BIM modeling technology, comprising the following steps:

[0020] (1) Establish the pier column model: according to the design drawings, establish an accurate model for the concrete veneer of the pier column in Rhino;

[0021] (2) Determining the direction of reinforcement: extract the model shell from the pier column model, offset the normal direction by 5cm (thickness of the protective layer) to obtain a curved surface as the reinforcement layout surface, and then take equal points for the upper and lower sections according to the principle of the design institute’s reinforcement layout, according to The shortest walking distance of the upper two points on the curved surface is used to determine the direction of the steel bar (multiple cross-sections can be taken, in theory, the more steel bar models are taken, the more accurate the steel bar model wi...

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Abstract

The invention relates to a spacial three-dimensional special-shaped bridge pier rebar construction method based on a BIM modelling technology, and belongs to the field of bridge construction. The method mainly comprises the steps of establishing a pier model, determining the trend of rebar, conducting rebar linear analysis, numbering the rebar, and performing rebar classification and processing. An IGES. format file conversion station is utilized to perform conversion, two-dimensional disintegration is conducted on the spacial three-dimensional special-shaped rebar through solidworks, a dwg format is exported after disintegration to be subjected to parameter extraction, parameters such as angles and coordinates of rebar linear section control points are obtained, then obtained data is input into a numerical control bending machine, and rebar processing is completed. The spacial three-dimensional special-shaped bridge pier rebar construction method based on the BIM modelling technology has the advantages of effectively solving the difficult problem of the spacial three-dimensional special-shaped bridge rebar is hard to process, reducing the difficulty of processing the three-dimensional spacial special-shaped bridge pier rebar, improving the work efficiency of processing the three-dimensional spacial special-shaped bridge pier rebar, improving the precision of the processed rebar, shortening the construction period, and saving the cost.

Description

Technical field: [0001] The invention relates to a three-dimensional special-shaped pier reinforcement construction method based on BIM modeling technology, which belongs to the field of bridge construction. Background technique: [0002] With the development of social economy, under the premise of ensuring the quality, safety and practicality of the construction industry, people have higher and higher requirements for the landscape and multi-functionality of buildings. The continuous appearance of various special-shaped structures is an inevitable trend of social development. , and the structural modeling becomes more and more complex, and the construction difficulty and cost will increase accordingly. How to more effectively reduce the construction difficulty of three-dimensional special-shaped bridge pier reinforcement and improve the processing accuracy of the reinforcement is particularly important. For ordinary construction The process has the following major defects: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D21/00G06F17/50
CPCE01D19/02E01D21/00G06F30/13
Inventor 秦佳尉洪利
Owner CHINA FIRST HIGHWAY ENG
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