Steel grid construction technology based on bim lofting and 3D scanning

Abstract

The invention relates to the technical field of building construction, in particular to a steel grid construction technology based on BIM lofting and three-dimensional scanning. The steel grid construction technology includes the following steps: (1) determining a BIM model of a steel grid; (2) establishing a point coordinate database; (3) importing a BIM lofting robot; (4) carrying out on-site positioning measurement by the BIM lofting robot; (5) installing the steel grid; (6) carrying out re-measurement and examination by a three-dimensional scanner; and (7) carrying out adjustment and fixation. The steel grid construction technology starts from the basic BIM. Then, automatic lofting is carried out on a construction site. Finally, the actual construction structure information obtained bythe three-dimensional scanner through on-site surveying and mapping is compared with the data aggregated by the model. The compatibility of hardware and software, the analysis of lofting accuracy through actual measurement, the multi-professional data sharing and the improvement of the measurement lofting efficiency are systematically combined. The steel grid construction technology has high construction accuracy and short construction period, improves the efficiency of measurement, saves cost, improves the economic benefit, and is worth popularizing and applying widely.

Description

technical field [0001] The invention relates to the field of building technology, in particular to a steel grid construction process based on BIM lofting and three-dimensional scanning. Background technique [0002] BIM (Building Information Modeling), also known as building information modeling, is a new type of computer application technology in the engineering construction industry. , design, construction, operation management and other stages of the whole life cycle process to share and transfer, so that engineering and technical personnel can correctly understand and efficiently respond to various building information, and provide design teams, construction units and construction operation units, including The construction subjects of all parties provide the basis for collaborative work, and play an important role in improving production efficiency, saving costs and shortening the construction period. [0003] With the advancement of construction engineering technology...

AI Technical Summary

Problems solved by technology

[0006] Although the above method can complete the installation of the grid frame in place, there is a situation that the lifting speed of the two ends of the steel grid frame is prone to inconsistent due to the influence of uneven traction force during the overall lifting process of the steel grid frame, which eventually leads to inaccurate installation; The accuracy, safety and construction efficiency of the overall hoisting have not been significantly improved. It is only suitable for the installation and construction of the grid with a flat setting and a relatively high overall rigidity. However, for high assembly accuracy, high installation accuracy, and high installation process monitoring accuracy, The structure is complex, the number of components is large and relatively large, and the installation of steel grid frames with complex and strange shapes is not suitable

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