西北师范大学学报（自然科学版）2024，Vol.60Issue(4)：42-49,8.DOI:10.16783/j.cnki.nwnuz.2024.04.005
基于变形监测与数值模拟的白衣寺塔稳定性分析
Stability analysis of the White Temple Pagoda based on deformation monitoring and numerical simulation
摘要
Abstract
As one of the typical representatives of Chinese architecture,the ancient pagoda necessitates a thorough stability analysis as a crucial step in its subsequent preventive preservation.Taking the Baiyi Temple Pagoda in Lanzhou City as an example,3D laser scanning technology was used to obtain point cloud data and determine the current preservation status.Displacement meters and photogrammetry techniques were used to monitor the overall displacement and local crack changes of the tower body.The displacement and stress changes of the Baiyi Temple Pagoda were simulated using Ansys numerical software,and the stability of the tower was analyzed.The results showed that the pagoda currently exhibits a noticeable tilt with a prevailing westward displacement along the east-west axis and a corresponding southward shift along the north-south axis.The inclination angle is measured at 0.394° southwest with a horizontal displacement of 0.170 m at the tower's base.Remarkably,despite these displacements,the entire tower structure demonstrates an absence of stress concentration,manifesting instead uniform compression across its cross-section,well within the material strength limits.However,under normal operational conditions,the tilt angle should reach 6.41°,tensile stress levels would surpass safety thresholds,precipitating potential local or overall structural instability and subsequent failure.关键词
白衣寺塔/变形监测/数值模拟/稳定性Key words
White Temple Pagoda/deformation monitoring/numerical simulation/stability分类
建筑与水利引用本文复制引用
闫菲菲,张景科,李周明,郑炜,白东明..基于变形监测与数值模拟的白衣寺塔稳定性分析[J].西北师范大学学报（自然科学版）,2024,60(4):42-49,8.基金项目
白衣寺塔及菩萨殿保护修缮工程前期勘察研究项目 （）
