A Dynamic Test of Fully Prestressed Concrete Beams

Yao Ting Zhang; Yi Zheng; Hong Jian Li

doi:10.4028/www.scientific.net/AMR.368-373.2483

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 368-373A Dynamic Test of Fully Prestressed Concrete Beams

A Dynamic Test of Fully Prestressed Concrete Beams

Abstract:

A dynamic test of two unbonded fully prestressed concrete beams has been conducted. The results indicate that the natural frequency of beams increases with the prestress force, which is opposite to the analytical arguments for homogeneous and isotropic beams subject to axial force. This paper explains the change in frequencies by discussing the change in the elastic modulus. A modified formula is also proposed, and the experimental data agree well with the theoretical analysis.

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Periodical:

Advanced Materials Research (Volumes 368-373)

Pages:

2483-2490

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.368-373.2483

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Online since:

October 2011

Authors:

Yao Ting Zhang, Yi Zheng, Hong Jian Li

Keywords:

Beam, Concrete, Dynamic, Mode, Test

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