文章分别采用常规环境激励法与 IBIS-FS(Image by Interferometric Survey-Frequency Structures)微波干涉技术两种方法对装配整体式混凝土结构进行动力特性检测,同时按照与现浇结构混凝土相同的方法进行结构理论计算分析.结果表明:实测动力特性结果与计算结果基本符合,常规环境激励法与IBIS-FS微波干涉技术可以在不需要任何激振设备的情况下检测出装配整体式混凝土结构的固有频率、振型、阻尼比;可以根据结构动力特性的测试结果对结构性能进行分析和判断.
Analysis of the Dynamic Characteristic Test of Monolithic Precast Concrete Structure
Conventional ambient excitation method and IBIS-FS(Image by Interferometric Survey-Frequency Structures)were used to detect the dynamic characteristics of the monolithic precast concrete structure.Meanwhile,the structure analysis was carried out according to the same method as the cast-in-place concrete structure.The results show that the measured dynamic characteristics basically meet the calculated ones,and the conventional ambient excitation method and IBIS-FS microwave interference technology are feasible to detect the natural frequency,mode,damping ratio of the monolithic precast concrete structure without any vibration excitation equipment.The performance of the structure can be analyzed and judged according to the test results of the dynamic characteristic.
万方数据
维普
