桥梁健康监测海量数据分析与评估——“结构健康监测”研究进展

被引:54
作者
李爱群
丁幼亮
王浩
郭彤
机构
[1] 东南大学混凝土及预应力混凝土结构教育部重点实验室
基金
国家杰出青年科学基金;
关键词
结构健康监测; 桥梁; 海量数据; 状态评估; 环境作用;
D O I
暂无
中图分类号
U446 [桥梁试验观测与检定];
学科分类号
摘要
详细介绍了国家杰出青年科学基金项目"结构健康监测"(项目号:50725828)研究进展.该项目针对桥梁环境荷载和静动力响应等海量监测数据的处理分析与评估迫切需求,并紧密结合大跨斜拉桥和悬索桥的结构特点,系统地研究了大跨斜拉、悬索桥梁服役环境作用监测与效应模拟技术、动力性能监控与异常预警技术以及关键构件状态评估与运营维护技术.主要包括:①基于温度、日常风和台风监测数据提出了大跨桥梁服役环境作用模型与模型参数确定方法,并结合大跨桥梁多尺度基准有限元模拟方法研究了桥梁服役荷载效应模拟技术;②基于振动监测数据建立了大跨桥梁整体动力特性参数以及斜拉桥拉索索力、悬索桥主缆和吊杆内力的在线识别方法,形成了"环境条件归一化"的桥梁运营状态监控与异常预警技术;③基于应变、梁端位移等监测数据开展了服役环境下钢箱梁焊接细节疲劳荷载效应、主梁伸缩缝的温度和车载效应分析方法研究,形成了桥梁关键构件服役性能监控和寿命评估技术.
引用
收藏
页码:972 / 984
页数:13
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