Vibration analyses of electrical transmission spun-cast concrete poles for health monitoring

Kaoshan Dai; Shenen Chen; Dustin Smith

doi:10.1117/12.914953

23 March 2012 Vibration analyses of electrical transmission spun-cast concrete poles for health monitoring

Kaoshan Dai, Shenen Chen, Dustin Smith

Proceedings Volume 8347, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012; 834702 (2012) https://doi.org/10.1117/12.914953
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

Spun-cast concrete poles have been increasingly used in power line support in U.S. during the past decade. Dynamic behaviors of these pole structures are critical design considerations due to the wind and conductor effects. However, free vibration of pole structures has rarely been studied and existing design guidelines do not provide clear information associated with pole natural frequencies. To build-up knowledge in pole vibration, analyses of concrete poles of various sizes and classes were performed numerically. The finite element models were verified with experimental modal data from several poles. Based on the study, empirical relations between geometric parameters and pole natural frequencies were developed, which are very basic information for health monitoring of power lines.

Citation Download Citation

Kaoshan Dai, Shenen Chen, and Dustin Smith "Vibration analyses of electrical transmission spun-cast concrete poles for health monitoring", Proc. SPIE 8347, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012, 834702 (23 March 2012); https://doi.org/10.1117/12.914953

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