• S. Mahana
• L. M. Gupta

Cost effective and economical construction are the essential part of the modern construction. Economy in the construction can be achieved by the efficient utilization of the materials. Now a days prestressed composite structures are widely used in the bridges and multi – storey buildings. In the steel – concrete composite structures the compressive strength of the concrete is utilized along with the tensile strength of steel. The major problem in the composite structure is the large deflection due to dead weight, live load, shrinkage and creep of concrete. Prestressing improves the load carrying capacity and deflection limit of the structures. Hence, this technique is adopted for the rehabilitation of existing bridges and buildings. This research work mainly focuses on the parametric study of the prestressed steel – concrete composite beam under positive bending moment. In this paper simply-supported composite beam is considered and prestressing tendon is connected at the bottom flange of the steel section. Further the nonlinear finite element analysis is performed to study the effect of the different parameters on the behavior of the prestressed composite beam. ANSYS16.0 computer software has been used to analyze the three dimensional finite element model. The nonlinear material and geometrical analysis is performed by changing the different parameters. These parameters includes tendon length, prestressing force, steel beam section (NPB400x200 and NPB500x200), concrete grade and thickness to width ratio of the concrete.

ANSYS16.0, Deflection limit, Finite element model, Prestressing tendon, Steel – concrete composite beam.

"PARAMETRIC STUDY OF PRESTRESSED COMPOSITE BEAM UNDER POSITIVE MOMENT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.16-21, May-2019, Available :http://www.jetir.org/papers/JETIRCA06004.pdf

"PARAMETRIC STUDY OF PRESTRESSED COMPOSITE BEAM UNDER POSITIVE MOMENT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp16-21, May-2019, Available at : http://www.jetir.org/papers/JETIRCA06004.pdf