Structural Flexural Bending Assessment of Prestressed Concrete Joist with Corrosion

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Abstract:

The number of situations where it is necessary to intervene in existing structures is increasing. In Spain, rehabilitation and maintenance of buildings accounts for 30% of the activity of the construction sector and it is growing. This paper evaluates the residual safety of T prestressed joists with severe corrosion at the lower reinforcement. The reliability is assessed with the application of the ACI-318 load test. It is demonstrated that there is sufficient safety in cases of corroded prestressed joists. At any rate, it’s recommended to make a light repair under the damaged joists.

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Periodical:

Advanced Materials Research (Volumes 671-674)

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790-793

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March 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Concrete Spanish Group (GEHO): Survey pathology of concrete structures, edited by GEHO Bulletin Vol 10, Madrid (1992).

Google Scholar

[2] A.F. Barbosa and G.O. Ribeiro: Analysis of reinforced concrete structures using Ansys nonlinear concrete model. Computational Mechanics Vol. 1 n. 8 (1998), pp.1-7.

Google Scholar

[3] P. Fanning: Nonlinear models of reinforced and post-tensioned concrete beams. Electronic Journal of Structural Engineering Vol. 2 (2001), pp.111-119.

DOI: 10.56748/ejse.1182

Google Scholar

[4] D. Coronelli and P. Gambarova: Structural assessment of corroded reinforced concrete beams: modeling guidelines. Journal of Structural Engineering Vol. 130 n. 8 (2004), pp.1214-1224.

DOI: 10.1061/(asce)0733-9445(2004)130:8(1214)

Google Scholar

[5] J. Vercher: Safety residual forged in severe corrosion. PhD. Department of Architectural Constructions. Polytechnic University of Valencia (2013).

Google Scholar

[6] T. Tavio and A. Tata: Predicting nonlinear behavior and stress-strain relationship of rectangular confined reinforced concrete columns with Ansys. Civil Engineering Dimension Vol. 11 (2009).

Google Scholar

[7] American Concrete Institute (ACI): Building Code Requeriments for Structural Concrete (ACI 318-08) and Commentary. Strength Evaluation of Existing Structures. Michigan, USA (2008).

DOI: 10.1201/9781420007657.ch36

Google Scholar

[8] Prevalesa SL: Technical specifications - as EHE-08 - the slab of prestressed beams DITECO T12 model. Valencia, Spain (2008).

Google Scholar

[9] Ministry of Housing: Technical Building Code (CTE), edited by Gazette, Madrid (2006).

Google Scholar