江西建材Issue(4)：142-145,4.
基于IBIS-FL技术的特大跨径桥梁自然状态变形规律研究
Research on the Natural Deformation Law of Extra Long Span Bridges Based on IBIS-FL Technology
摘要
Abstract
Dynamic deformation of bridges is an important indicator for construction and measuring their healthy operation.Due to their limita-tions,conventional detection technologies such as level gauges,total stations,scanners,and optical cameras cannot achieve non-contact,high-frequency,and overall dynamic deformation monitoring of long-span bridges.The Anqing Yangtze River Railway Bridge is taken as the re-search object in the article.Based on the IBIS system,the FL type is used to monitor the micro deformation of the bridge for three consecutive days at different times.The micro deformation phenomenon of the ultra long span bridge under temperature changes is observed,and the rela-tionship between the maximum deformation and deformation rate at different positions of the bridge and temperature changes is explored.The monitoring data is processed and analyzed using the system specific software IBIS-DV.The research results show that after wavelet denoising,the measurement error of IBIS technology is 0.016 5 mm,which can meet the requirements of deformation monitoring accuracy.Under the in-fluence of temperature changes in natural conditions,bridge deformation exhibits waveform changes and has a certain lag.Among them,the maximum deflection deformation of 17.03 mm generated at the mid span is less than the allowable value for bridge deformation in the General Code for JTG D60-2015 Design of Highway Bridges and Culverts.关键词
特大跨径桥梁/IBIS/动态变形/精度监测Key words
Extra large span bridges/IBIS/Dynamic deformation/Precision monitoring分类
天文与地球科学引用本文复制引用
包立新,杨军,张国建,刘胜震,臧耿晨,李建强,周鲁..基于IBIS-FL技术的特大跨径桥梁自然状态变形规律研究[J].江西建材,2025,(4):142-145,4.基金项目
山东省路桥集团有限公司郑许高速ZXTJ-1标项目经理部《BIM及现代空间信息技术赋能桥梁智能建造及施工工艺优化研究》(项目编号:2025-TLGS-ZXTJ-QT-001). （项目编号:2025-TLGS-ZXTJ-QT-001）
