BIM technology-based railway continuous beam prestressed pipeline accurate positioning method

Abstract

The invention discloses a BIM technology-based railway continuous beam prestressed pipeline accurate positioning method, which relates to a railway bridge prestressed pipeline positioning method. Themethod is invented mainly for solving the problem that at present, prestressed steel beam space positioning is based on a two-dimensional design drawing, and deviation is likely to occur in continuousbeam construction. Based on a drawing, a complete engineering model and a database are established according to construction procedures and system coding requirements, a BIM model adopts Tekla software for modeling, and an IFC general format is exported by utilizing the BIM model and transmitted to Navisworks. And through Navisworks display software, three-dimensional display of components is carried out on the bridge engineering, and meanwhile three-dimensional collision inspection is achieved. Programming is conducted through C# language to realize one-key output of the spatial coordinatesof the prestressed steel beam. Setting out and positioning rib welding are conducted according to the accurate positioning coordinates of the prestressed pipeline output by the BIM model and a BIM simulation positioning scheme. The method has the advantage of reducing building quality problems.

Description

Technical field:

[0001] The invention relates to a method for installing prestressed pipelines of railway bridges, in particular to a method for precise positioning of prestressed pipelines based on BIM technology. Background technique:

[0002] At present, large-span continuous beams mostly adopt cantilever pouring or cast-in-place construction technology of brackets. Among them, the prestressed steel beam is a kind of high-strength steel bar to overcome the bearing effect of the bridge structure and ensure the safety of the bridge structure. The prestressed pipe is a kind of spatial curve, which is relatively Complex prestressed beams not only have vertical bending changes, but also plane bending changes. How to ensure the precise positioning of prestressed pipes during construction operations is particularly important.

[0003] The spatial positioning of traditional prestressed steel beams is mainly based on two-dimensional design drawings. For technicians and operators w...

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