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首页> 外文会议>ISISS' 2011;International symposium on innovation sustainability of structures in civil engineering >RESEARCH AND APPLICATION OF STRUCTURE HEALTH MONITORING SYSTEM IN LONG-SPAN SPATIAL STRUCTURE
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RESEARCH AND APPLICATION OF STRUCTURE HEALTH MONITORING SYSTEM IN LONG-SPAN SPATIAL STRUCTURE

机译：大空间空间结构健康监测系统的研究与应用

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摘要

The attenuating capabilities of long-span spatial structures due to environmental erosion,material aging and long-term load effect,fatigue effect and mutation effect will inevitably lead to accumulated structure damage,reduced resistance against natural interference,and even extreme catastrophe. The structure health monitoring (SHM) technology for surveillance,evaluation and assessment of existing or new structures has attracted much attention in the engineering research and now attainted some degree of maturity. Real-time monitoring of structure parameters under construction and operative service period provides direct basis for assessing the structure health condition. A documented monitoring system and a group of specific sensors including Fiber Bragg Grating (FBG) strain sensors,accelerometers,displacement meters and tilt transducers were presented and applied in a new gymnasium,in Dalian Sports Center,a steel based structure with a large multi-chorded dome (cablebased latticed Shell). This paper discusses the principle of monitoring system development,sensor behavior and applied health monitoring results. Based on current development and field practice,it is found that the monitoring system managed to automatically analyze the test data,evaluate the structure health status and advertise warning ahead of loss.
机译：大跨度空间结构由于环境侵蚀，材料老化和长期荷载效应，疲劳效应和突变效应而产生的衰减能力将不可避免地导致累积的结构破坏，抵抗自然干扰的能力降低，甚至导致巨大的灾难。用于监视，评估和评估现有或新结构的结构健康监测（SHM）技术已在工程研究中引起了广泛关注，并且已经达到一定程度的成熟度。在施工和运营服务期内对结构参数的实时监控为评估结构健康状况提供了直接依据。在大连体育中心的新体育馆中，展示了一套有文件记录的监控系统，以及一组特定的传感器，包括光纤布拉格光栅（FBG）应变传感器，加速度计，位移计和倾斜传感器，并将其应用于大型体育馆，钢结构的大型体育馆。弦穹顶（基于电缆的格子壳）。本文讨论了监控系统开发的原理，传感器行为和应用的健康监控结果。根据目前的发展情况和现场实践，发现监控系统能够自动分析测试数据，评估结构的健康状况并在损失前进行预警。

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