Based On 3 D Laser Scanning Technology Of High-rise Building Whole Deformation Monitoring Methods Of Research

In recent years as the nation’s basic engineering construction in full carrying, all kinds of high-rise buildings, in order to ensure the safety in the construction operation, design and management for the construction of the building at the same time to provide scientific and reliable data, for deformation monitoring of tall building master the deformation regularity of the dynamic and static deformation data, so that before the accident loss remedy, it is very necessary. 3 d laser scanning technology is a new trend in recent years, with its non-contact, high accuracy, high speed, high automation, Etc are widely applied to many fields. Compared with the traditional measurement technology, it not only can satisfy the precision requirement of building deformation monitoring, also can not contact, deformation information and building deformation model of high efficiency, facilitate monitoring work efficiency and automation.Paper first introduces the 3 d laser scanning technology research status at home and abroad, and describes the development and application status of building deformation monitoring technology; Followed in this paper the three-dimensional laser scanning technology and theory, on the basis of deformation monitoring method by 3 d laser scanner to obtain the target architecture of point cloud data, to get the data of working process is introduced in detail, by matching the corresponding module in Riscan Pro software do to get point cloud data preprocessing, including point cloud splicing, data filtering, etc., and the error analysis do scan data results, discusses the error sources and data of high and low precision, and puts forward some countermeasures and measures to improve the accuracy of the scanning data. By processing the point cloud data to construct the target building three-dimensional entity model, and the source of the error and precision of the model to do the discussion and analysis, do to model quality evaluation, demonstrated that directly on the goal building three-dimensional entity model to extract the feasibility of the deformation monitoring data and information, at the same time also discussed some measures to improve the precision of the model. Based on the target building deformation monitoring data of 3 d model to extract information on the basis of the analysis of the deformation monitoring method is studied and improved, and doing the instance analysis, verify that the method has a good practical.