|本期目录/Table of Contents|

[1]郭 明,闫冰男,周腾飞,等.激光雷达技术在应县木塔形变分析中的应用[J].建筑科学与工程学报,2020,37(02):109-117.[doi:10.19815/j.jace.2019.03061]
　GUO Ming,YAN Bing-nan,ZHOU Teng-fei,et al.Application of LiDAR Technology in Deformation Analysis of Yingxian Wooden Pagoda[J].Journal of Architecture and Civil Engineering,2020,37(02):109-117.[doi:10.19815/j.jace.2019.03061]
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激光雷达技术在应县木塔形变分析中的应用(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
37卷
期数:
2020年02期
页码:
109-117
栏目:
出版日期:
2020-03-30

文章信息/Info

Title:
Application of LiDAR Technology in Deformation Analysis of Yingxian Wooden Pagoda
文章编号:
1673-2049(2020)02-0109-09
作者:
郭 明1,2,3,4,闫冰男1,周腾飞1,陈朝阳1,张 晨1,刘运明5
(1. 北京建筑大学 测绘与城市空间信息学院,北京 102616; 2. 北京建筑大学 代表性建筑与古建筑数据库教育部工程研究中心,北京 102616; 3. 北京建筑大学 现代城市测绘国家测绘地理信息局重点实验室,北京 102616; 4. 北京建筑大学 建筑遗产精细重构与健康监测北京市重点实验室,北京 102616; 5. 北京城建勘测设计研究院有限责任公司,北京 100101)
Author(s):
GUO Ming1,2,3,4, YAN Bing-nan1, ZHOU Teng-fei1, CHEN Zhao-yang2, ZHANG Chen1, LIU Yun-ming5
(1. School of Geomatics and Urban Spatial Informatics, Beijing University of Civil Engineering and Architecture, Beijing 102616, China; 2. Engineering Research Center of Representative Building and Architectural Heritage Database of Ministry of Education,
关键词:
应县木塔;  形变分析;  激光雷达扫描;  点云模型
Keywords:
Yingxian wooden pagoda;  deformation analysis;  LiDAR scanning;  point clouds model
分类号:
TU196
DOI:
10.19815/j.jace.2019.03061
文献标志码:
A
摘要:
为了更好地对应县木塔进行保护,需要分析其形变程度,了解木塔的健康状况,进而制定科学的保护方案。利用地面激光雷达、高精度全站仪等测量传感器,通过激光雷达扫描和全站仪控制测量相结合的方案采集监测数据。首先对采集的点云数据进行预处理,外部点云采用整体配准算法进行配准,通过特征进行粗配准和迭代最近点(ICP)算法进行精配准的两次配准,配准后根据控制点完成内、外点云坐标转换,通过罗德里格矩阵求解空间转换参数,最终得到绝对坐标系下的整体点云模型。对点云模型进行多种剖切,测量出柱子的倾斜角度、偏移距离以及整体倾斜角度等数据,定量分析单柱、单层及整体的形变。结果表明:应县木塔各层柱子都存在形变,木塔第2层形变较大,其中M2W23号柱子倾斜最严重; 各层均向东北方向有不同程度的倾斜,西南面柱子的位移量普遍较大; 从整体上看,木塔向东北方向倾斜并存在着复杂的扭转变形,木塔西侧由南向北发生顺时针扭转,东侧由南向北发生逆时针扭转; 应县木塔正处于严重的形变中,急需进行保护。
Abstract:
In order to protect Yingxian wooden pagoda better, it is necessary to analyze the degree of deformation and understand the health status, so as to formulate a scientific protection program. The monitoring data was collected by the combination of lidar scanning and total station control measurement by using ground lidar, high-precision total station and other measuring sensors. Firstly, the collected point clouds data was preprocessed, and the external point clouds were registered by the overall registration method. The internal point clouds performed two registrations of coarse registration through feature and fine registration by the iterative closest point(ICP)algorithm, which were the main data of deformation analysis and required high accuracy. After registration, the coordinate transformation between internal and external point clouds was carried out according to control points. The space transformation parameters were solved by Rodrigues matrix and finally the overall point clouds model in absolute coordinate system was obtained. The point clouds model was cut in various ways to measure the deviation angles and distances of columns and the inclination angles of whole pagoda. Then the deformations of the single column, single layer and the whole pagoda were quantitatively analyzed. The results show that all the columns of Yingxian wooden pagoda are deformed, the second layer of Yingxian wooden tower has a large deformation, of which the M2W23 column has the most serious inclination. Each layer inclines to the northeast in varying degrees, the inclination degree of the southwest columns is generally large. On the whole, the wooden pagoda inclines to the northeast with complex torsional deformation, the west side is turned clockwise from the south to the north, but the east side is turned counterclockwise from the south to the north. In brief, Yingxian wooden pagoda is undergoing serious deformation, which urgently needs protection.

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相似文献/References:

[1]薛建阳,张雨森.应县木塔结构变形现状及分析[J].建筑科学与工程学报,2019,36(01):32.
　XUE Jian-yang,ZHANG Yu-sen.Present Structural Deformations and Analysis of Yingxian Wooden Pagoda[J].Journal of Architecture and Civil Engineering,2019,36(02):32.

备注/Memo

备注/Memo:
收稿日期:2019-04-22
基金项目:国家自然科学基金项目(41601409,41971350); 北京市教委科研计划项目(KM201810016013,KM201510016016); 北京市属高校基本科研业务费项目(X18050,X18001); 北京建筑大学科研基金项目(KYJJ2017024)
作者简介:郭 明(1981-),男,湖北黄陂人,副教授,工学博士,E-mail:guoming@bucea.edu.cn。
通信作者:刘运明(1980-),男,山东德州人
更新日期/Last Update: 2020-04-21