Application of TLS in acquisition of complex steel structure features

doi:10.13474/j.cnki.11-2246.2020.0063

Abstract

Abstract: With the rapid development of the construction industry, a large number of complex steel structures have been built all over the country. The structure is complex and the building volume is huge. In the process of steel structure construction, in order to accurately splicing the steel structure or facilitating the installation of other components. It is often necessary to obtain characteristic information on steel structural components. It is difficult to obtain the characteristic information for the installation and inspection of traditional steel structures, and delay the construction period. The 3D laser scanning can quickly acquire the point cloud data of the steel structure through a large-scale intensive scanning, and the processing can obtain the characteristic information of the steel structure. Taking the coordinate acquisition of large steel structure disc members of Zhoukoudian Peking Man Site as an example, this paper introduces the acquisition and data processing flow of steel structure point cloud data and the method of component node coordinate extraction based on geometric position relationship. The results show that the 3D laser scanning technology can quickly and accurately acquire the characteristics of steel structural members under the engineering coordinate system which can meet the engineering precision requirements.

Key words: steel structure, point cloud processing, feature extraction, 3D laser scanning, mode coordinate

CLC Number:

P258

GAO Zicheng, WANG Guoli, GUO Ming, ZHOU Tengfei. Application of TLS in acquisition of complex steel structure features[J]. Bulletin of Surveying and Mapping, 2020, 0(2): 151-154,159.

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