Effect of Using Partial Continuounity by External Post-Tension on The Simple Composite Beams as a Strengthening Technique
| Autor: | Ahmed I. Hassanin, H. M. Abd-Elkader, A. M. ELshihy, H Shabaan |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Tension (physics) business.industry 020209 energy Composite number 02 engineering and technology General Medicine Structural engineering Finite element method Stiffening Flexural strength 0202 electrical engineering electronic engineering information engineering Retrofitting business Beam (structure) Parametric statistics |
| Zdroj: | The Egyptian International Journal of Engineering Sciences and Technology. 19:305-311 |
| ISSN: | 2682-3640 |
| DOI: | 10.21608/eijest.2016.97133 |
| Popis: | Composite steel-concrete beams are used widely in bridge and buildingconstruction as the main structural elements in flexure. These structures have adesign life and this may be reduced if loads are increased or environmentaldegradation occurs. Strength of such structure members and thus replacement orretrofitting may need to be considered. One method of retrofitting (stiffening andstrengthening) a composite steel-concrete beam is to externally post-tension thebeam. The present study focuses on evaluating the effect of adding the externalpost-tension as a strengthening technique on the simple composite beams. Thestudy was conducted using the finite element program "ANSYS". Nonlinearmaterial models for the components of the composite beam were used in the finiteelement model. The outcomes got from finite element analysis were confirmedagainst available experimental results. A broad parametric study was conducted toexplore the effect of tendons profiles on flexural behaviour. This covers: loaddeflection behaviour, converting the simple beam into partially continuous beam,verifying an external post-tensioned simple beam. |
| Databáze: | OpenAIRE |
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