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
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[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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