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通过对大型体育场馆钢结构在施工过程及使用阶段关键部位构件的应变情况进行监测,可以把握结构的应力情况,确保结构在施工和使用过程中的安全。通过济南奥体中心体育场罩棚钢结构的应变监测方案,阐述利用光纤光栅传感器进行应变监测的基本原理,提出测点的选择及布置的依据。监测结果表明:健康监测取得了较好的效果,具有较高的准确度和较好的稳定性,可以推广应用于其他类似结构的健康监测当中。
By monitoring the strain of steel structures in large stadiums during the construction and use phases, it is possible to grasp the stress conditions of the structure and ensure the safety during the construction and use of the structure. Based on the strain monitoring scheme of the shed steel structure in stadium of Jinan Olympic Sports Center, the basic principle of FBG sensor strain monitoring is expounded. The selection of measuring points and the basis of arrangement are put forward. Monitoring results show that: health monitoring has achieved good results, with high accuracy and good stability, which can be widely applied to other similar health monitoring structures.