This paper specializes in the seismic performance of mountainous railway bridges having different pier kind i.e. rectangular hollow piers and strong piers. The piers used were of equal substances and inertial residences. For this, three-D FEM models of these bridges were created by ANSYS 15.0. For seismic evaluation, response Spectrum and Dynamic Time-records analysis strategies had been adopted. exclusive types of earthquake waves used were Elcentro, Wenchuan and Nepal earthquakes, all normalized to zero.3 g height ground Acceleration (PGA). The observe concluded that despite the fact that the hole pier bridges are at risk of huge displacements, its coping with internal forces is excellent as compared to solid pier bridges.
Earthquake follows chance for lots bridges which has became out to be fatal in Railway Bridges some cases. even though people are encouraged for big quantity of years from seismic activities, concrete research on bridges commenced not long ago. Bridges must be designed such that simplest non-unsafe, and minor damage occurs which lets in to preserve protection measures after an earthquake. Pier failure from seismic danger has been one of the most probable failures but a properly-designed and strong seismic overall performance of the bridge can greatly lessen the chance. In preferred, underneath seismic hundreds, in long span continuous mountainous bridge, the stiffness of the pier turns into manifestly much less due to the fact it’s miles lengthy and slim; therefore, it requires seismic overall performance reviews [1]. As pier top will increase displacement cost of pier will increase. An investigation approximately highway and railway bridges in China confirmed that the heights of the piers of about forty% bridges are more than forty meters high [2]. on this paper, seismic overall performance of mountainous bridges with typical high hole and solid piers, and massive span had been analyzed. We tried to expose hole pier bridges accommodate excessive shear, axial and second demands which maximize structural performance and slicing-off the massive mass of the piers to seismic reaction.
The experimental evidences studied in these sorts of subjects are only a few, while the seismic Railway Bridges examine of strengthened concrete continuous mountainous bridge having distinct pier systems is particular. The seismic analyses accomplished for bridges thus far have been shear resistance and strengthening of strong pier bridges, consequently the ones Railway Bridges consequences cannot be at once implemented to hole pier bridges. Mo and Nien [3] and Pinto et al. [4] investigated the seismic performances and attributes of similar hollow excessive strength concrete bridge piers. Ou et al. [5] used a three D FEM of hollow precast put up-tensioned reinforced concrete segmented piers and a cyclic loading sample was applied to the version.