测绘通报 ›› 2021, Vol. 0 ›› Issue (5): 155-158.doi: 10.13474/j.cnki.11-2246.2021.0163

• 测绘地理信息技术应用案例 • 上一篇    下一篇

基于三维激光点云的钢结构变形分析

赵亚波1,2,3, 王智1,3,4   

  1. 1. 青岛市勘察测绘研究院, 山东 青岛 266032;
    2. 山东省海岸带调查监测工程技术协同创新中心, 山东 青岛 266032;
    3. 青岛市地下空间地理信息工程研究中心, 山东 青岛 266032;
    4. 青岛市西海岸 基础地理信息中心有限公司, 山东 青岛 266555
  • 收稿日期:2021-02-22 发布日期:2021-05-28
  • 作者简介:赵亚波(1971-),男,高级工程师,主要研究方向为精密工程测量及测绘工作管理。E-mail:qdsurveyor@126.com

Analysis of steel structure deformation based on 3D laser point cloud

ZHAO Yabo1,2,3, WANG Zhi1,3,4   

  1. 1. Qingdao Surveying & Mapping Institute, Qingdao 266032, China;
    2. Shandong Joint Innovation Center of Coast Survey and Monitor Engineering, Qingdao 266032, China;
    3. Qingdao Engineering Research Center of Geographical Information of Underground Space, Qingdao 266032, China;
    4. West Coast Geomatics Center of Qingdao, Qingdao 266555, China
  • Received:2021-02-22 Published:2021-05-28

摘要: 钢结构变形是工程、工业领域常见问题,若变形超过设计允许值,将影响工程的正常实施及工业的正常运转。采用全站仪等传统方式检测钢结构变形,不仅效率低,且难以全面、精确地反映钢结构的空间整体变形情况。本文以一个海上钻井平台钢结构变形为例,介绍采用三维激光扫描仪进行钢结构变形检测分析的方法,通过对外业采集的点云进行滤波、分割处理,并基于钢结构设计模型对三维点云进行拟合处理,根据实测的三维点云与拟合模型进行碰撞分析,即可得到钢结构的空间变形情况。

关键词: 三维扫描, 点云, 钢结构, 变形检测, 拟合

Abstract: The deformation of steel structure is a common problem in engineering and industrial fields. If the deformation exceeds the allowable value of design, it will affect the normal implementation of engineering and the normal operation of industry. Traditional methods such as total station are used to detect the deformation of steel structure.But it is not only inefficient, but also difficult to fully and accurately reflect the overall deformation of steel structure. Taking the deformation of steel structure of a offshore drilling platform as an example, this paper introduces the method of detecting and analyzing the deformation of steel structure by using 3D laser scanner, filters and divides the point cloud collected in the field, and fits the 3D point cloud based on the steel structure design model.According to the collision analysis of the measured 3D point cloud and the fitting model, the spatial deformation of the steel structure can be obtained.

Key words: 3D scanning, point cloud, steel structure, deformation detection, fitting

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