Kuok Sin-Chi, Yuen Ka-Veng
Department of Civil and Environmental Engineering, University of Macau, Macau.
ScientificWorldJournal. 2013 Oct 24;2013:509350. doi: 10.1155/2013/509350. eCollection 2013.
The goal of this study is to investigate the structural performance of reinforced concrete building under the influence of severe typhoon. For this purpose, full-scale monitoring of a 22-story reinforced concrete building was conducted during the entire passage process of a severe typhoon "Vicente." Vicente was the eighth tropical storm developed in the Western North Pacific Ocean and the South China Sea in 2012. Moreover, it was the strongest and most devastating typhoon that struck Macao since 1999. The overall duration of the typhoon affected period that lasted more than 70 hours and the typhoon eye region covered Macao for around one hour. The wind and structural response measurements were acquired throughout the entire typhoon affected period. The wind characteristics were analyzed using the measured wind data including the wind speed and wind direction time histories. Besides, the structural response measurements of the monitored building were utilized for modal identification using the Bayesian spectral density approach. Detailed analysis of the field data and the typhoon generated effects on the structural performance are discussed.
本研究的目的是调查强台风影响下钢筋混凝土建筑的结构性能。为此，在强台风“韦森特”的整个过境过程中，对一座22层的钢筋混凝土建筑进行了全面监测。韦森特是2012年在西北太平洋和南海生成的第八个热带风暴。此外，它是自1999年以来袭击澳门最强且最具破坏力的台风。台风影响期的总时长超过70小时，台风眼区域覆盖澳门约一小时。在整个台风影响期内都进行了风及结构响应测量。利用包括风速和风向时程在内的实测风数据对风特性进行了分析。此外，使用贝叶斯谱密度方法，将监测建筑的结构响应测量结果用于模态识别。文中讨论了现场数据的详细分析以及台风对结构性能产生的影响。
