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http://dx.doi.org/10.7734/COSEIK.2019.32.6.359

Experimental and Analytical Studies on the Non-Linear behaviors of Pre-Stressed Steel H-Beams  

Kim, Moon-Young (School of Civil and Architectural Engineering, SungKyunKwan Univ.)
Kim, Nak-Kyung (School of Civil and Architectural Engineering, SungKyunKwan Univ.)
Oh, Yong-Hwan (Tornado Construction C.., LTD)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.32, no.6, 2019 , pp. 359-366 More about this Journal
Abstract
Experimental and analytical studies on the behavioral characteristics of a pre-stressed (PS) steel girder are conducted to investigate the effects of deviators on the non-linear inelastic properties of the PS system. In this regard, 4 test specimens consisting of a steel H-beam, a straight cable with eccentricity, anchorages, and deviators are built and failure tests are performed under two-point loading. In addition, in-plane elastic deformation theories for the PS system without a deviator, and with three deviators at regular intervals are analytically formulated and solved using a symbolic calculation technique. To verify the validity of the experimental and the proposed analytical theories, the results obtained using FEM models composed of beam elements, rigid beam elements, and truss cable elements, are compared to the experimental results and the analytical solutions. As a result, it is determined that externally installed un-bonded deviators inhibit flexural deformation of the deformed beam to such an extent that their elastic stiffness, and failure strength are significantly improved compared to those of the PS system without deviators.
Keywords
non-linear theory; PS steel beam; deviator; tendon; FEM;
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Times Cited By KSCI : 1  (Citation Analysis)
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