Deflection Analysis of Externally Prestressed Concrete Beam Based on Damage Mechanics

Hui Xia Xiong; Yu Zhou Sima; Yao Ting Zhang

doi:10.4028/www.scientific.net/AMR.163-167.928

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 163-167Deflection Analysis of Externally Prestressed...

Deflection Analysis of Externally Prestressed Concrete Beam Based on Damage Mechanics

Abstract:

This article describes the static experiment of externally prestressed concrete beam under the beeline reinforcing patterns. It adopts the damage mechanics - superimposed load - finite element method, uses damage constitutive equation to replace the constitutive equation, which does not take the damage into account, self-compiled eight-node uniform-parameter element superimposed load finite element program is used to analyze the forced distortion of experimental beam. The value analysis results show: the damage mechanics can soundly reflect the complicated behaviors of concrete materials in the load-superimposing process and has obtained the values of the concrete material damage characteristic parameters and achieved the results that are consistent with the experiment. Therefore, damage mechanics has provided a new way in studying the nonlinear behaviors of concrete materials.

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Periodical:

Advanced Materials Research (Volumes 163-167)

Pages:

928-932

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.163-167.928

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Online since:

December 2010

Authors:

Hui Xia Xiong, Yu Zhou Sima, Yao Ting Zhang

Keywords:

Constitutive Equation, Damage Mechanics, Eight-Node Uniform-Parameter Element, Externally Prestressed Concrete Beam

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