Title :
Non-Destructive dynamic detection and safety evaluation of sluice after Wen-Chuan seismic shock
Author :
Li Huokun ; Zhe, Xu
Author_Institution :
Sch. of Civil Eng., Nanchang Univ., Nanchang, China
Abstract :
Taking sluice structure of YingXiuWan hydropower station which lies on the seismic center of Wen-Chuan strong seismic shock as example, this paper carries out the dynamic Non-Destructive detection based on vibration theory. The sluice structure dynamic response is measured under flood discharge excitation, and the operational modal parameter of sluice is identified with output response only. Based on the modal parameter identification result and numerical result, the sluice security after seismic shock is evaluated. The method put forward in this paper does not affect the normal work of structure and reduces the artificial work and equipment invests, and has broad application prospects.
Keywords :
dynamic response; earthquake engineering; hydroelectric power stations; parameter estimation; security; structural engineering; vibrations; Wen-Chuan seismic shock; flood discharge excitation; hydropower station; nondestructive dynamic detection; operational modal parameter identification; safety evaluation; sluice structure dynamic response; vibration theory; Civil engineering; Electric shock; Floods; Frequency domain analysis; Hydroelectric power generation; Information security; Noise reduction; Parameter estimation; Safety; Seismic measurements; Wen-Chuan seismic shock; dynamic detection; modal parameter identification; safety evaluation; sluice;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
DOI :
10.1109/MACE.2010.5536295