Experimental Study on the Mechanical Property of SMA Externally Prestressed Concrete Box Beam

Ze Ying Yang; Ting Ting Yuan; Jing Liu; Xing Hua Xi; Pan Gao

doi:10.4028/www.scientific.net/AMM.778.50

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 778Experimental Study on the Mechanical Property of...

Experimental Study on the Mechanical Property of SMA Externally Prestressed Concrete Box Beam

Abstract:

This paper conducted an experiment to research flexural property of SMA unbounded prestressed box beam ,which applied the Shape Memory Alloy (SMA) at martensite state as externally prestressing tendons, and then through heating the SMA bars fully anchored on the beam with cracks by electrifying motivation, drove SMA to produce the “recovery stress” because of transformation, to study the effects of this stress on the deflection and crack width of concrete box-beam on work ,to study the recovery ability of SMA bars ,and to provide basis for the application of the SMA bars to bridge strengthening.

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Periodical:

Applied Mechanics and Materials (Volume 778)

Pages:

50-54

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.778.50

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Online since:

July 2015

Authors:

Ze Ying Yang, Ting Ting Yuan, Jing Liu, Xing Hua Xi*, Pan Gao

Keywords:

Box Beam, Bridge Strengthening, Flexural Property, Heating, Recovery, SMA, Unbounded Externally Prestressed

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