Effect of Using Partial Continuounity by External Post-Tension on The Simple Composite Beams as a Strengthening Technique | ||||
The Egyptian International Journal of Engineering Sciences and Technology | ||||
Article 6, Volume 19, EIJEST, Vol. 19, 2016, June 2016, Page 305-311 PDF (828.76 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/eijest.2016.97133 | ||||
View on SCiNiTO | ||||
Authors | ||||
A EL-Shihy* 1; H Shabaan1; H Abd-Elkader1; A Hassanin2 | ||||
1Structural Engineering Dept., Faculty of Engineering, Zagazig University, Zagazig P.O.Box 44519, Egypt | ||||
2Construction Engineering Dept., Faculty of Engineering, Egyptian Russian University, Cairo P.O.Box 11829, Egypt | ||||
Abstract | ||||
Composite steel-concrete beams are used widely in bridge and building construction as the main structural elements in flexure. These structures have a design life and this may be reduced if loads are increased or environmental degradation occurs. Strength of such structure members and thus replacement or retrofitting may need to be considered. One method of retrofitting (stiffening and strengthening) a composite steel-concrete beam is to externally post-tension the beam. The present study focuses on evaluating the effect of adding the external post-tension as a strengthening technique on the simple composite beams. The study was conducted using the finite element program "ANSYS". Nonlinear material models for the components of the composite beam were used in the finite element model. The outcomes got from finite element analysis were confirmed against available experimental results. A broad parametric study was conducted to explore the effect of tendons profiles on flexural behaviour. This covers: load deflection behaviour, converting the simple beam into partially continuous beam, verifying an external post-tensioned simple beam. | ||||
Keywords | ||||
Nonlinear Post; tensioning Composite beams Deflection ANSYS 14.0 | ||||
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