东南大学学报（英文版）2025，Vol.41Issue(2)：199-206,8.DOI:10.3969/j.issn.1003-7985.2025.02.009
利用GNSS精密单点定位技术测定高耸结构的自振周期
Determining the natural vibration period of towering structure using GNSS precise point positioning
摘要
Abstract
This study explores the use of the Global Naviga-tion Satellite System(GNSS)precise point positioning(PPP)technology to determine the natural vibration periods of towering structures through simulations and field testing.During the simulation phase,a GNSS receiver captured vi-bration waveforms generated by a single-axis motion simula-tor based on preset signal parameters,analyzing how differ-ent satellite system configurations affect the efficiency of ex-tracting vibration parameters.Subsequently,field tests were conducted on a high-rise steel single-tube tower.The results indicate that in the simulation environment,no mat-ter the PPP positioning data under single GPS or multisys-tem combination,the vibration frequency of single-axis mo-tion simulator can be accurately extracted after frequency do-main analysis,with multisystem setups providing more pre-cise amplitude parameters.In the field test,the natural vi-bration periods of the main vibration modes of high-rise steel single-tube tower measured by PPP technology closely match the results of the first two modes derived from finite el-ement analysis.The first mode period calculated by the em-pirical formula is approximately 6%higher than those deter-mined through finite element analysis and PPP.This study demonstrates the potential of PPP for structural vibration analysis,offering significant benefits for assessing dynamic responses and monitoring the health of towering structures.关键词
高耸结构/自振周期/精密单点定位/频域分解Key words
towering structure/natural vibration period/precise point positioning/frequency domain decomposition分类
土木建筑引用本文复制引用
王志明,吴继忠..利用GNSS精密单点定位技术测定高耸结构的自振周期[J].东南大学学报（英文版）,2025,41(2):199-206,8.基金项目
The National Natural Science Foundation of China(No.41974214). （No.41974214）
