Pre-stress variable cross-section box girder steel bar collision detection method based on BIM technology

Abstract

The invention discloses a pre-stress variable cross-section box girder steel bar collision detection method based on a BIM technology. The detection method comprises the following steps: A, data preparation: collecting and arranging a main beam end steel bar arrangement diagram, a main beam prestress arrangement diagram and a detail structure diagram of a bridge main body, and obtaining basic datafor establishing a model; B, establishing a model, namely establishing a bridge steel bar model by utilizing Revit software; C, model fusion: importing a collision detection model in the Revit software into the Navisworks software; D, collision detection running: setting collision parameters in Navisworks software, and then performing running collision detection; and E, outputting a collision report. The method has the beneficial effects that based on the BIM technology, collision detection is conducted on the steel bar model through establishment of the three-dimensional model; and accordingto the detection report, the design data is optimized, the construction is guided according to the three-dimensional visual drawing, the unnecessary steel bar adjustment time is reduced, the construction period is shortened, and the construction operation cost is reduced.

Description

technical field [0001] The invention relates to a steel bar collision detection method, in particular to a BIM technology-based steel bar collision detection method for a prestressed variable-section box girder. Background technique [0002] At present, the traditional variable cross-section box girder reinforcement is bound at the construction site on the basis of two-dimensional drawings, and the prestressed steel bundle pipes and ordinary steel bars are laid out according to the parameter data of the drawings. Due to the limitations of the two-dimensional drawings, the steel bar collision problem often occurs after the binding is completed, so that the steel bar binding cannot continue to be constructed according to the drawing, and the position of the steel bar needs to be adjusted to ensure that the rear steel bars do not collide. Reduced the workload of on-site construction, resulting in a long construction period and increased operating costs. Contents of the invent...

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Problems solved by technology

[0003] In order to overcome the problems that existing variable cross-section box girder steel bars are bound at the construction site on the basis of two-dimensional drawings, the problem of steel bar collisions will increase the workload of on-site construction, the construction period will be long, and the operating cost will increase. The invention provides a Collision detection method of prestressed box girder with variable cross-section based on BIM technology

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