Research on Health Monitoring for Large Span Steel Structures
Research on Health Monitoring for Large Span Steel Structures
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大跨度钢结构健康监测研究
DOI：
10.1061/9780784483381.047
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Zhu Yanpeng
中科院分区：
文献类型：
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作者：
Wang Xiuli;Ran Yonghong;Zhu Yanpeng
大跨度钢管桁架结构空间形式复杂。每个酒吧都是相互影响的。以西宁海湖体育馆为例，介绍了光纤光栅传感器和振弦式传感器健康监测技术在体育馆施工阶段的应用。阐述了健康监测系统的布置、监测方法、测点布置等。对监测数据的分析表明，在施工阶段，各主筋的应力变化稳定，内力远小于钢筋的屈服强度。各杆件应力始终处于使用极限状态，满足设计要求。各环位移监测数据变化稳定，结构刚度储备丰富。对西宁海湖体育馆在使用过程中的安全性是一个至关重要的评价指标，同时相关经验和数据为类似健康监测项目提供了参考。
Large span steel pipe truss structure has complex space forms. Each bar interacts with each other. As an example of the gymnasium of Xining Haihu, the health monitoring technology of Fiber Bragg grating sensors and the vibrating wire sensors is introduced in the application of the gymnasium construction stage. This paper expounds on the arrangement of the health monitoring system, monitoring methods, measuring point arrangement, etc. Analysis of monitored data shows that in the construction phase, the stress in each primary bar changes stability, the internal force is much smaller than the yield strength of steel. Besides, the stress in each bar is always under the service limit state, which meets the design requirements. Each ring displacement monitoring data change stability, structural stiffness is rich in reserves. To Xining Haihu gymnasium in the process of using security is a critical evaluation index; at the same time, relevant experience and data provide a reference for similar health monitoring project.