Weihua Hu, Zeng Xu, Xiao‐Han Bian, De-Hui Tang, Wei Lu, Chao Li, J. Teng, Á. Cunha
{"title":"基于无线分布式同步数据采集系统的高层建筑运行模态分析与连续动态监测","authors":"Weihua Hu, Zeng Xu, Xiao‐Han Bian, De-Hui Tang, Wei Lu, Chao Li, J. Teng, Á. Cunha","doi":"10.1002/stc.3063","DOIUrl":null,"url":null,"abstract":"The paper mainly reports the structural dynamic behaviors of a skyscraper under operational conditions based on a wireless distributed synchronized data acquisition (WDSA) system. First, the WDSA system is developed to conveniently acquire the structural responses from a large and complex structure with the unified Global Navigation Satellite System (GNSS) time information. The phase synchronization accuracy of the WDSA method is validated by comparing the modal parameters estimated by both wired central data acquisition (WCA) and the WDSA systems. Subsequently, the dynamic properties of a skyscraper are presented by performing operational modal analysis (OMA) based on the proposed WDSA system. Finally, the WDSA‐based continuous dynamic monitoring system is further developed to capture the long‐term structural responses at different spatial positions. The structural dynamic behaviors of the skyscraper under normal wind, typhoon and earthquake conditions are reported. The structural “whiplash effect” under both normal wind and earthquake conditions are characterized by the acceleration‐based accumulated contribution factor.","PeriodicalId":22049,"journal":{"name":"Structural Control and Health Monitoring","volume":"11 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Operational modal analysis and continuous dynamic monitoring of high‐rise building based on wireless distributed synchronized data acquisition system\",\"authors\":\"Weihua Hu, Zeng Xu, Xiao‐Han Bian, De-Hui Tang, Wei Lu, Chao Li, J. Teng, Á. Cunha\",\"doi\":\"10.1002/stc.3063\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The paper mainly reports the structural dynamic behaviors of a skyscraper under operational conditions based on a wireless distributed synchronized data acquisition (WDSA) system. First, the WDSA system is developed to conveniently acquire the structural responses from a large and complex structure with the unified Global Navigation Satellite System (GNSS) time information. The phase synchronization accuracy of the WDSA method is validated by comparing the modal parameters estimated by both wired central data acquisition (WCA) and the WDSA systems. Subsequently, the dynamic properties of a skyscraper are presented by performing operational modal analysis (OMA) based on the proposed WDSA system. Finally, the WDSA‐based continuous dynamic monitoring system is further developed to capture the long‐term structural responses at different spatial positions. The structural dynamic behaviors of the skyscraper under normal wind, typhoon and earthquake conditions are reported. The structural “whiplash effect” under both normal wind and earthquake conditions are characterized by the acceleration‐based accumulated contribution factor.\",\"PeriodicalId\":22049,\"journal\":{\"name\":\"Structural Control and Health Monitoring\",\"volume\":\"11 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Structural Control and Health Monitoring\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/stc.3063\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Structural Control and Health Monitoring","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/stc.3063","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Operational modal analysis and continuous dynamic monitoring of high‐rise building based on wireless distributed synchronized data acquisition system
The paper mainly reports the structural dynamic behaviors of a skyscraper under operational conditions based on a wireless distributed synchronized data acquisition (WDSA) system. First, the WDSA system is developed to conveniently acquire the structural responses from a large and complex structure with the unified Global Navigation Satellite System (GNSS) time information. The phase synchronization accuracy of the WDSA method is validated by comparing the modal parameters estimated by both wired central data acquisition (WCA) and the WDSA systems. Subsequently, the dynamic properties of a skyscraper are presented by performing operational modal analysis (OMA) based on the proposed WDSA system. Finally, the WDSA‐based continuous dynamic monitoring system is further developed to capture the long‐term structural responses at different spatial positions. The structural dynamic behaviors of the skyscraper under normal wind, typhoon and earthquake conditions are reported. The structural “whiplash effect” under both normal wind and earthquake conditions are characterized by the acceleration‐based accumulated contribution factor.