Experimental Study on Anti-Impact Properties of Prestressed Concrete Beams

Abstract:

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The dynamic displacement ductility and ultimate load-carrying capability of three partially prestressed concrete (PPC) and unbonded beams, has been experimentally investigated by applying impact load to their middle with falling hammers. The typical measurement wave curves are described. Influences of a falling hammer’s gravitational potential energy on the dynamic properties of the PPC beam are analyzed. Based on the analog simulation theory, the impact-load carrying capability of the actual unbonded PPC beam with span 12 m is gained. Results indicate that the unbonded PPC beams have favorable performance of anti-impact properties fragile destruction will not happen, and the unbonded PPC beams can be used in wide-span underground structures.

Info:

Periodical:

Key Engineering Materials (Volumes 400-402)

Edited by:

Jingsi Huo, Yan Xiao, Zongjin Li and Shuaib Ahmad

Pages:

789-794

DOI:

10.4028/www.scientific.net/KEM.400-402.789

Citation:

X. W. Wang and Y. Z. Li, "Experimental Study on Anti-Impact Properties of Prestressed Concrete Beams", Key Engineering Materials, Vols. 400-402, pp. 789-794, 2009

Online since:

October 2008

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Price:

$35.00

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