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Design, Construction, and Test of a Postensioned Segmental Beam |
Published in: | Engineering for a Smarter Planet: Innovation, ITC, and Computational Tools for Sustainable Development: Proceedings of the 9th Latin American and Caribbean Conference for Engineering and Technology | |
Date of Conference: | August 3-5, 2011 |
Location of Conference: | Medellin, Colombia |
Authors: | Jorge A. Tito Alberto Gomez-Rivas
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Refereed Paper: | #132 |
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Abstract |
This paper describes the construction of a 21’4” postensioned segmental beam and its respective loading test.
The segments were two solid end blocks and nine hollow blocks, all of them were cast using high strength
lightweight concrete, poured on a metal form. The postensioning was performed according to the design plan so
as to control the deflections produced by the postensioning of each strand. Two strands were located along the
bottom of the beam, another strand was located along the center, and a fourth half-loaded strand ran along the top
of the beam. The segmental beam was tested to failure by applying a load at the center of the beam. The strains,
deflections, and the ultimate load obtained during the tests match well with the theoretical predictions.
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