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对虹桥机场二期屋盖张弦结构健康监测进行设计,利用振弦应变计、锚索计分别对杆件应力和钢索索力进行长期监测,形成了一套完整的结构健康监测系统。监测数据表明,自结构投入正常使用后,撑杆应力和钢索索力的变化比较稳定,都在一个合理的范围之内,结构始终处于健康状态。验证了在该项目上使用的监测系统和监测方法的正确性,该系统和方法可推广应用于监测类似的大型结构工程。
The health monitoring of the roof chord structure of the second roof of Hongqiao Airport was designed. Long-term monitoring of the bar stress and cable force was carried out by using the vibrating wire strain gage and the cable gage. Thus, a complete structural health monitoring system was formed. Monitoring data show that since the structure put into normal use, the strut stress and cable force changes relatively stable, are within a reasonable range, the structure is always in a healthy state. The correctness of the monitoring system and monitoring method used in this project has been verified. The system and method can be widely applied to monitoring similar large-scale structural projects.