DYNAMIC ANALYSIS OF A REINFORCED CONCRETE HORIZONTAL CURVED BEAM USING SOFTWARE

Kulkarni D. B, Ingawale N. S

Abstract: Dynamic analysis of a reinforced concrete beam bridge, horizontally curved in plan is done using a finite element software. The support conditions considered are simple supports. Dynamic loading in the form of moving vehicular load is taken into account for the purpose of analysis. IRC Class AA type of vehicle is simulated on two lanes on the beam of span 31m, having a box type cross-section. A parametric study is done varying the radius of curvature of the beam from 50 m to 250 m with the interval of 50 m to check the behavior of the beam. Various responses of the beam like bending moment, shear force, torsional moment and deflection are calculated. The influence of a non-dimensional parameter L/R i.e. ratio of length of the beam to radius of curvature of the beam is verified for the responses of the beam. From the results, it has been found that the responses i.e. the bending moment, shear force, torsional moment and deflection of the beam decrease as the radius of curvature of the beam in increased. Also, the responses of the beam increase as the L/R ratio is increased.

Keywords: Dynamic analysis, horizontally curved beam, finite element, moving vehicular moving load, Simply Supported, Box type, parametric study, L/R ratio

DOI: https://doi.org/10.15623/ijret.2015.0404096