Study on the early warning mechanism for real-time monitored structural responses of a historical timber building. (1st December 2020)

• Record Type: Journal Article
• Authors: Wang, Juan; Chen, Huihui; Du, Xiaoying
• Is Part Of: Measurement. Volume 165(2020)
• Publication Date: 2020-12-01
• Subjects: Early warning mechanism -- Structural health monitoring -- Structural response -- Statistical analysis -- Extreme analysis; Weights and measures -- Periodicals; Measurement -- Periodicals; Measurement; Weights and measures; Periodicals; 530.8
• DOI: 10.1016/j.measurement.2020.108136
• Languages: English
• ISSNs: 0263-2241

Abstract

Highlights: The early warning mechanism for historical timber building is presented. Early warning thresholds based on statistical and extreme value analysis of past monitored structural responses are proposed. Early warnings for substructures are realized by efficiency coefficient data fusion method. Abstract: Structural Health Monitoring (SHM) is of great importance for the preventive protection of historical buildings. Real-time monitoring and early warning of the structural response have advantages of timeliness and early detection of abnormal structural conditions. Feiyun Wood Pavilion, a historical timber building in China, was taken as the object to study the early warning mechanism for real-time monitored structural responses. An early warning mechanism for historical timber building has been presented under different data accumulated time. The early warning thresholds of structural responses based on statistical and extreme value analysis of the accumulated monitoring data are proposed. Early warning for substructure of the building is realized by data fusion based on the efficiency coefficient method. The effectiveness of the proposed mechanism was verified by real monitoring data. The proposed mechanism gives an early warning solution of the SHM that can be references for existing and other historical buildings.