长沙理工大学学报（自然科学版）2016，Vol.13Issue(4)：57-65,9.
面向PS-InSAR技术的桥梁随机形变规律
Random deformation pattern of bridge faced to PS-InSAR technique
摘要
Abstract
In order to set up an InSAR-based bridge safety early-warning system,the de-formation pattern of bridge under the random load must be considered.After setting the arti-ficial PS points in the BDKP(Bridge Deformation of Key Points),the deformation pattern of the BDKP under the random system temperature and the random traffic flow is analyzed u-sing finite element method.The results show that the whole deformation characteristics of the bridge can be characterized by the deformation of the BDKP.Daily temperature can be divided into four periods,and the random deformation pattern of bridge in different periods was analyzed.The influence of temperature of the random system can be eliminated from InSAR data.The random system temperature has a significant influence on the deformation of the BDKP,even up to cm magnitude.The influence of random traffic flow on the de-formation of the BDKP is much less than that of the random system temperature,in which the deformationof the BDKP is in mm magnitude.关键词
合成孔径雷达干涉技术(InSAR)/永久散射体(PS)/桥梁形变关键点/随机荷载/随机形变规律Key words
Synthetic Aperture Radar Interferometry(InSAR)/permannent scatterers(PS)/BDKP/random load/random deformation pattern分类
交通工程引用本文复制引用
潘军,李威,赵冰,张华,吕孝雷,肖和平,叶建文,李建辉..面向PS-InSAR技术的桥梁随机形变规律[J].长沙理工大学学报（自然科学版）,2016,13(4):57-65,9.基金项目
公路交通领域军民融合应用示范项目(GFZX0404080102,GLTC-2015HN553) （GFZX0404080102,GLTC-2015HN553）
长沙理工大学土木工程创新性项目(13ZDXK12)。 （13ZDXK12）
