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Mathematical Problems in Engineering
Volume 2014, Article ID 840937, 13 pages
http://dx.doi.org/10.1155/2014/840937
Research Article

Prestress Force Identification for Externally Prestressed Concrete Beam Based on Frequency Equation and Measured Frequencies

Beijing Laboratory of Earthquake Engineering and Structure Retrofit, Beijing University of Technology, Beijing 100124, China

Received 29 March 2014; Accepted 14 May 2014; Published 29 May 2014

Academic Editor: Qingsong Xu

Copyright © 2014 Luning Shi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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